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openwrt-xburst/target/linux/coldfire/patches/040-Add-USB-support-for-MCF5445x-and-MCF54418.patch
kaloz 7e7649baa9 [coldfire]: switch to 2.6.38 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31546 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-05-01 07:00:17 +00:00

7008 lines
196 KiB
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From 632dc9e46a9ff032138f81fd420c0f01fd6c3cbc Mon Sep 17 00:00:00 2001
From: Jason Jin <Jason.jin@freescale.com>
Date: Thu, 4 Aug 2011 14:21:29 +0800
Subject: [PATCH 40/52] Add USB support for MCF5445x and MCF54418
The OTG module function with external ULPI of USB3300
on M5445xEVB and Modelo TWR-SER2, while the Max3353 charge
pump on Modelo TWR-SER1 with version-B CPU board only
function FS/LS tranceiver.
It also support USB host module on Modelo TWR-SER2.
And the host mode on M54455EVB with FS/LS only tranceiver
is supported by p4 interface on the board.
Signed-off-by: Jingchang Lu <b35083@freescale.com>
---
arch/m68k/Kconfig | 2 +
arch/m68k/coldfire/m5441x/Makefile | 4 +-
arch/m68k/coldfire/m5441x/max3353.h | 96 +++
arch/m68k/coldfire/m5441x/max3353_otg.c | 508 +++++++++++++
arch/m68k/coldfire/m5441x/max3353_xc.c | 310 ++++++++
arch/m68k/coldfire/m5441x/usb.c | 276 +++++++
arch/m68k/coldfire/m5441x/usb.h | 76 ++
arch/m68k/coldfire/m5441x/usb_dr.c | 179 +++++
arch/m68k/coldfire/m5441x/usb_host.c | 115 +++
arch/m68k/coldfire/m5441x/xcvr.c | 198 +++++
arch/m68k/coldfire/m5441x/xcvr_host.c | 53 ++
arch/m68k/coldfire/m5445x/usb.c | 220 ++++++
arch/m68k/coldfire/m5445x/usb.h | 107 +++
arch/m68k/coldfire/m5445x/usb_dr.c | 152 ++++
arch/m68k/coldfire/m5445x/xcvr.c | 127 ++++
arch/m68k/include/asm/fsl_usb_gadget.h | 45 ++
arch/m68k/include/asm/fsl_usb_io.h | 43 ++
arch/m68k/include/asm/fsl_usb_platform.h | 78 ++
drivers/Makefile | 1 +
drivers/usb/Kconfig | 2 +
drivers/usb/core/Kconfig | 2 +-
drivers/usb/gadget/Kconfig | 2 +-
drivers/usb/gadget/fsl_udc_core.c | 360 ++++++++-
drivers/usb/gadget/fsl_usb2_udc.h | 16 +
drivers/usb/gadget/serial.c | 40 +-
drivers/usb/host/Kconfig | 72 ++-
drivers/usb/host/ehci-fsl.c | 257 ++++++-
drivers/usb/host/ehci-fsl.h | 7 +
drivers/usb/host/ehci-hub.c | 34 +
drivers/usb/host/ehci.h | 55 ++-
drivers/usb/otg/Makefile | 7 +
drivers/usb/otg/fsl_otg.c | 1212 ++++++++++++++++++++++++++++++
drivers/usb/otg/fsl_otg.h | 423 +++++++++++
drivers/usb/otg/otg_fsm.c | 371 +++++++++
drivers/usb/otg/otg_fsm.h | 151 ++++
drivers/usb/otg/usb.c | 76 ++
include/linux/fsl_devices.h | 26 +
include/linux/usb/fsl_usb2.h | 410 ++++++++++
include/linux/usb/fsl_xcvr.h | 36 +
include/linux/usb/otg.h | 2 +-
40 files changed, 6087 insertions(+), 64 deletions(-)
create mode 100644 arch/m68k/coldfire/m5441x/max3353.h
create mode 100644 arch/m68k/coldfire/m5441x/max3353_otg.c
create mode 100644 arch/m68k/coldfire/m5441x/max3353_xc.c
create mode 100644 arch/m68k/coldfire/m5441x/usb.c
create mode 100644 arch/m68k/coldfire/m5441x/usb.h
create mode 100644 arch/m68k/coldfire/m5441x/usb_dr.c
create mode 100644 arch/m68k/coldfire/m5441x/usb_host.c
create mode 100644 arch/m68k/coldfire/m5441x/xcvr.c
create mode 100644 arch/m68k/coldfire/m5441x/xcvr_host.c
create mode 100644 arch/m68k/coldfire/m5445x/usb.c
create mode 100644 arch/m68k/coldfire/m5445x/usb.h
create mode 100644 arch/m68k/coldfire/m5445x/usb_dr.c
create mode 100644 arch/m68k/coldfire/m5445x/xcvr.c
create mode 100644 arch/m68k/include/asm/fsl_usb_gadget.h
create mode 100644 arch/m68k/include/asm/fsl_usb_io.h
create mode 100644 arch/m68k/include/asm/fsl_usb_platform.h
create mode 100644 drivers/usb/otg/fsl_otg.c
create mode 100644 drivers/usb/otg/fsl_otg.h
create mode 100644 drivers/usb/otg/otg_fsm.c
create mode 100644 drivers/usb/otg/otg_fsm.h
create mode 100644 drivers/usb/otg/usb.c
create mode 100644 include/linux/usb/fsl_usb2.h
create mode 100644 include/linux/usb/fsl_xcvr.h
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -327,6 +327,7 @@ config M5445X
bool "MCF5445x support"
depends on COLDFIRE
select GENERIC_TIME
+ select USB_ARCH_HAS_EHCI
select USB_EHCI_FSL
select HAVE_FSL_USB_DR
help
@@ -430,6 +431,7 @@ config M5441X
depends on COLDFIRE
select GENERIC_TIME
select USB_EHCI_FSL
+ select USB_ARCH_HAS_EHCI
select HAVE_FSL_USB_DR
select HAVE_CAN_FLEXCAN
help
--- a/arch/m68k/coldfire/m5441x/Makefile
+++ b/arch/m68k/coldfire/m5441x/Makefile
@@ -14,9 +14,11 @@ endif
endif
#ifneq ($(strip $(CONFIG_USB) $(CONFIG_USB_GADGET_FSL_USB2)),)
-ifneq ($(strip $(CONFIG_USB_OTG) $(CONFIG_USB_M5441X_MAX3353_FSLS)),)
+ifneq ($(strip $(CONFIG_USB_OTG)),)
+ifeq ($(strip $(CONFIG_USB_M5441X_MAX3353_FSLS)),)
obj-y += xcvr.o
endif
+endif
ifneq ($(strip $(CONFIG_USB_M5441X_MAX3353_FSLS)), )
obj-y += max3353_xc.o
ifneq ($(strip $(CONFIG_USB_OTG)),)
--- /dev/null
+++ b/arch/m68k/coldfire/m5441x/max3353.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _MAX3353_H_
+#define _MAX3353_H_
+/* registers */
+
+/* Manufacturer registers */
+#define MAX3353_MAN0 0x00
+#define MAX3353_MAN1 0x01
+#define MAX3353_MAN2 0x02
+#define MAX3353_MAN3 0x03
+
+/* Product ID registers */
+#define MAX3353_PID0 0x04
+#define MAX3353_PID1 0x05
+#define MAX3353_PID2 0x06
+#define MAX3353_PID3 0x07
+
+/* Control register 1 */
+#define MAX3353_CR1 0x10
+#define CR1_DM_PULLDOWN (1 << 7)
+#define CR1_DP_PULLDOWN (1 << 6)
+#define CR1_DM_PULLUP (1 << 5)
+#define CR1_DP_PULLUP (1 << 4)
+#define CR1_BDISC_ACONN (1 << 2)
+#define CR1_IRQ_PUSH_PULL (1 << 1)
+
+/* Control register 2 */
+#define MAX3353_CR2 0x11
+#define CR2_VBUS_DISCHRG (1 << 4)
+#define CR2_VBUS_DRV (1 << 3)
+#define CR2_VBUS_CHG2 (1 << 2)
+#define CR2_VBUS_CHG1 (1 << 1)
+#define CR2_SHUTDOWN (1 << 0)
+
+/* Status register */
+#define MAX3353_STATUS 0x13
+#define STATUS_B_HNP (1 << 6)
+#define STATUS_A_HNP (1 << 5)
+#define STATUS_ID_FLOAT (1 << 4)
+#define STATUS_ID_GND (1 << 3)
+#define STATUS_SESSION_END (1 << 2)
+#define STATUS_SESSION_VALID (1 << 1)
+#define STATUS_VBUS_VALID (1 << 0)
+
+/* Interrupt mask register */
+#define MAX3353_INTR_MASK 0x14
+#define IM_A_HNP_EN (1 << 5)
+#define IM_ID_FLOAT_EN (1 << 4)
+#define IM_ID_GND_EN (1 << 3)
+#define IM_SESSION_END_EN (1 << 2)
+#define IM_SESSION_VLD_EN (1 << 1)
+#define IM_VBUS_VLD_EN (1 << 0)
+
+/* Interrupt edge register */
+#define MAX3353_INTR_EDGE 0x15
+#define IE_SESSION_VALID_ED (1 << 1)
+#define IE_VBUS_VLD_ED (1 << 0)
+
+/* Interrupt latch register (read-only) */
+#define MAX3353_INTR_LATCH 0x16
+#define IL_A_HNP_RQ (1 << 7)
+#define IL_ID_FLOAT_RQ (1 << 6)
+#define IL_ID_GND_RQ (1 << 5)
+#define IL_SESSION_END_RQ (1 << 4)
+#define IL_SESSION_VALID_RN (1 << 3)
+#define IL_VBUS_VALID_RN (1 << 2)
+#define IL_SESSION_VALID_RP (1 << 1)
+#define IL_VBUS_VALID_RP (1 << 0)
+
+
+#define MAX3353_DEV_ADDR 0x2c
+#define MAX3353_IRQ (64 + 4) /* IRQ4 */
+
+extern u8 max3353_read_reg(u8 reg);
+extern void max3353_write_reg(u8 reg, u8 data);
+extern int max3353_read_id_pin(void);
+extern int otg_set_resources(struct resource *resources);
+
+#endif /* _MAX3353_H_ */
--- /dev/null
+++ b/arch/m68k/coldfire/m5441x/max3353_otg.c
@@ -0,0 +1,508 @@
+/*
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/moduleparam.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/usb.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/otg.h>
+#include <linux/workqueue.h>
+#include <linux/time.h>
+#include <linux/platform_device.h>
+#include <linux/fsl_devices.h>
+#include <linux/usb/fsl_usb2.h>
+#include <linux/usb/otg.h>
+
+#include <asm/fsl_usb_io.h>
+#include "max3353.h"
+
+#define DRIVER_VERSION "1.0"
+#define DRIVER_AUTHOR "Freescale Semiconductor Inc."
+#define DRIVER_DESC "Freescale MAX3353 USBOTG Driver"
+#define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC
+
+MODULE_DESCRIPTION("Freescale MAX3353 USBOTG Driver");
+
+#if 0
+#undef pr_debug
+#define pr_debug(x...) printk(x)
+#endif
+
+static const char driver_name[] = "max3353-otg";
+
+const pm_message_t otg_suspend_state = {
+ .event = 1,
+};
+
+static volatile struct fsl_usb_device_regs *usb_dr_regs;
+
+struct otg_fsm {
+ int id; /* 0=host 1=gadget */
+ struct otg_fsm_ops *ops;
+ struct otg_transceiver *transceiver;
+};
+
+struct otg_fsm_ops {
+ int (*start_host)(struct otg_fsm *fsm, int on);
+ int (*start_gadget)(struct otg_fsm *fsm, int on);
+};
+
+struct max_otg {
+ struct otg_transceiver otg;
+ struct otg_fsm fsm;
+ struct delayed_work otg_event;
+ struct work_struct work_wq;
+ u8 host_working;
+ int irq;
+};
+
+static struct max_otg *max_otg_dev;
+
+#define SET_OTG_STATE(otg_ptr, newstate) ((otg_ptr)->state = newstate)
+
+
+/* Reset controller, not reset the bus */
+void otg_reset_controller(void)
+{
+ u32 command;
+
+ command = fsl_readl(&usb_dr_regs->usbcmd);
+ command |= (1 << 1);
+ fsl_writel(command, &usb_dr_regs->usbcmd);
+ while (fsl_readl(&usb_dr_regs->usbcmd) & (1 << 1))
+ ;
+}
+
+
+/* Call suspend/resume routines in host driver */
+static int maxotg_start_host(struct otg_fsm *fsm, int on)
+{
+ struct otg_transceiver *xceiv = fsm->transceiver;
+ struct device *dev;
+ struct max_otg *otg_dev = container_of(xceiv, struct max_otg, otg);
+ u32 retval = 0;
+
+ pr_debug("%s: host %s\n", __func__, on ? "on" : "off");
+
+ if (!xceiv->host)
+ return -ENODEV;
+ dev = xceiv->host->controller;
+
+ if (on) {
+ /* start fsl usb host controller */
+ if (otg_dev->host_working)
+ goto end;
+ else {
+ otg_reset_controller();
+ pr_debug("host on......\n");
+ if (dev->driver->resume)
+ retval = dev->driver->resume(dev);
+
+ otg_dev->host_working = 1;
+ }
+ } else {
+ /* stop fsl usb host controller */
+ if (!otg_dev->host_working)
+ goto end;
+ else {
+ pr_debug("host off......\n");
+ if (dev && dev->driver)
+ retval = dev->driver->suspend(dev,
+ otg_suspend_state);
+ otg_dev->host_working = 0;
+ }
+ }
+end:
+ return retval;
+}
+
+/* Call suspend and resume function in udc driver
+ * to stop and start udc driver.
+ */
+static int maxotg_start_gadget(struct otg_fsm *fsm, int on)
+{
+ struct otg_transceiver *xceiv = fsm->transceiver;
+ struct device *dev;
+
+ pr_debug("%s: gadget %s\n", __func__, on ? "on" : "off");
+
+ if (!xceiv->gadget || !xceiv->gadget->dev.parent)
+ return -ENODEV;
+
+ dev = xceiv->gadget->dev.parent;
+
+ if (on)
+ dev->driver->resume(dev);
+ else
+ dev->driver->suspend(dev, otg_suspend_state);
+
+ return 0;
+}
+
+
+/* delayed interrupt handler */
+static void handle_irq(struct work_struct *work)
+{
+ u8 latch;
+ int id_host;
+ struct otg_fsm *fsm = &max_otg_dev->fsm;
+ struct otg_transceiver *otg = &max_otg_dev->otg;
+
+ if (max_otg_dev == NULL)
+ return;
+
+ latch = max3353_read_reg(MAX3353_INTR_LATCH);
+
+ if (latch) {
+ id_host = max3353_read_id_pin();
+ fsm->id = !id_host;
+ pr_debug("\t\t\t%s host mode %s\n", __func__,
+ id_host ? "ON" : "OFF");
+
+ if (otg->host)
+ otg->host->is_b_host = fsm->id;
+ if (otg->gadget)
+ otg->gadget->is_a_peripheral = !fsm->id;
+
+ if (fsm->id) { /* switch to gadget */
+ schedule_delayed_work(&max_otg_dev->otg_event, 100);
+ } else { /* switch to host */
+ cancel_delayed_work(&max_otg_dev->otg_event);
+ maxotg_start_gadget(fsm, 0);
+ maxotg_start_host(fsm, 1);
+ }
+ }
+ enable_irq(MAX3353_IRQ);
+}
+
+DECLARE_DELAYED_WORK(max3353_dwq, handle_irq);
+
+/*
+ * MAX3353 interrupt handler
+ *
+ * We're interested in ID pin changes. Since we can't do i2c
+ * operations from interrupt context, we use a delayed workqueue
+ * routine to clear the interrupt in the MAX3353, and to handle
+ * the role switching. The delay also allows for debouncing the
+ * state of the ID pin. To avoid the flood of interrupts between
+ * the irq and its processing, we disable the irq here, and re-enable
+ * it in the delayed routine.
+ */
+irqreturn_t max3353_isr(int irq, void *dev_id)
+{
+ disable_irq(MAX3353_IRQ);
+ schedule_delayed_work(&max3353_dwq, 25);
+
+ return IRQ_HANDLED;
+}
+
+
+/* Called by initialization code of host driver. Register host controller
+ * to the OTG. Suspend host for OTG role detection.
+ */
+static int set_host(struct otg_transceiver *otg_p, struct usb_bus *host)
+{
+ struct max_otg *otg_dev = container_of(otg_p, struct max_otg, otg);
+
+ pr_debug("%s() host %p\n", __func__, host);
+
+ if (!otg_p || otg_dev != max_otg_dev)
+ return -ENODEV;
+
+ otg_p->host = host;
+ if (host) {
+ pr_debug("host off......\n");
+
+ /* must leave time for khubd to finish its thing
+ * before yanking the host driver out from under it,
+ * so suspend the host after a short delay.
+ */
+ otg_dev->host_working = 1;
+ schedule_delayed_work(&otg_dev->otg_event, 100);
+ return 0;
+ } else { /* host driver going away */
+ if (max3353_read_id_pin()) {
+ /* Mini-A cable connected */
+ otg_p->state = OTG_STATE_UNDEFINED;
+ }
+ }
+
+ otg_dev->host_working = 0;
+
+ return 0;
+}
+
+/* Called by initialization code of udc. Register udc to OTG.*/
+static int set_peripheral(struct otg_transceiver *otg_p,
+ struct usb_gadget *gadget)
+{
+ struct max_otg *otg_dev = container_of(otg_p, struct max_otg, otg);
+
+ pr_debug("%s gadget %p\n", __func__, gadget);
+
+ pr_debug("otg_dev 0x%x\n", (int)otg_dev);
+ pr_debug("max_otg_dev 0x%x\n", (int)max_otg_dev);
+
+ if (!otg_p || otg_dev != max_otg_dev)
+ return -ENODEV;
+
+ if (!gadget) {
+ if (!otg_dev->otg.default_a)
+ otg_p->gadget->ops->vbus_draw(otg_p->gadget, 0);
+ usb_gadget_vbus_disconnect(otg_dev->otg.gadget);
+ otg_dev->otg.gadget = 0;
+ return 0;
+ }
+
+ otg_p->gadget = gadget;
+ otg_p->gadget->is_a_peripheral = !otg_dev->fsm.id;
+
+ /* start the gadget right away if the ID pin says Mini-B */
+ pr_debug("ID pin=%d\n", otg_dev->fsm.id);
+ if (otg_dev->fsm.id == 1) {
+ maxotg_start_host(&otg_dev->fsm, 0);
+ maxotg_start_gadget(&otg_dev->fsm, 1);
+ }
+
+ return 0;
+}
+
+/* Set OTG port power, only for B-device */
+static int set_power(struct otg_transceiver *otg_p, unsigned mA)
+{
+ return 0;
+}
+
+/* Delayed pin detect interrupt processing.
+ *
+ * When the Mini-A cable is disconnected from the board,
+ * the pin-detect interrupt happens before the disconnnect
+ * interrupts for the connected device(s). In order to
+ * process the disconnect interrupt(s) prior to switching
+ * roles, the pin-detect interrupts are delayed, and handled
+ * by this routine.
+ */
+static void maxotg_event(struct work_struct *work)
+{
+ struct max_otg *og = container_of(work, struct max_otg, otg_event.work);
+ struct otg_fsm *fsm = &og->fsm;
+
+ if (fsm->id) { /* switch to gadget */
+ maxotg_start_host(fsm, 0);
+ maxotg_start_gadget(fsm, 1);
+ }
+}
+
+
+static struct otg_fsm_ops maxotg_ops = {
+ .start_host = maxotg_start_host,
+ .start_gadget = maxotg_start_gadget,
+};
+
+
+/* Initialize the global variable max_otg_dev and request IRQ for OTG */
+static int maxotg_conf(struct platform_device *pdev)
+{
+ int status;
+ struct max_otg *max_otg_tc;
+ struct fsl_usb2_platform_data *pdata;
+
+ pdata = pdev->dev.platform_data;
+
+ pr_debug("%s\n", __func__);
+
+ if (max_otg_dev)
+ return 0;
+
+ /* allocate space to fsl otg device */
+ max_otg_tc = kzalloc(sizeof(struct max_otg), GFP_KERNEL);
+ if (!max_otg_tc)
+ return -ENODEV;
+
+ INIT_DELAYED_WORK(&max_otg_tc->otg_event, maxotg_event);
+
+ /* Set OTG state machine operations */
+ max_otg_tc->fsm.ops = &maxotg_ops;
+
+ /* initialize the otg structure */
+ max_otg_tc->otg.label = DRIVER_DESC;
+ max_otg_tc->otg.set_host = set_host;
+ max_otg_tc->otg.set_peripheral = set_peripheral;
+ max_otg_tc->otg.set_power = set_power;
+
+ max_otg_dev = max_otg_tc;
+ pr_debug("%s: set max_otg_dev %p, fsm %p\n", __func__,
+ max_otg_dev, &max_otg_dev->fsm);
+
+ /* Store the otg transceiver */
+ status = otg_set_transceiver(&max_otg_tc->otg);
+ if (status) {
+ printk(KERN_WARNING ": unable to register OTG transceiver.\n");
+ return status;
+ }
+
+ return 0;
+}
+
+/* OTG Initialization*/
+static int maxotg_start(struct platform_device *pdev)
+{
+ struct max_otg *p_otg;
+ struct otg_transceiver *otg_trans = otg_get_transceiver();
+ struct otg_fsm *fsm;
+ int status;
+ struct resource *res;
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+
+ p_otg = container_of(otg_trans, struct max_otg, otg);
+ fsm = &p_otg->fsm;
+
+ /* Initialize the state machine structure with default values */
+ SET_OTG_STATE(otg_trans, OTG_STATE_UNDEFINED);
+ fsm->transceiver = &p_otg->otg;
+
+ /* We don't require predefined MEM/IRQ resource index */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENXIO;
+
+ /*
+ * We don't request_mem_region here to enable resource sharing
+ * with host/device
+ */
+ usb_dr_regs = ioremap(res->start, sizeof(struct fsl_usb_device_regs));
+ pdata->regs = (void *)usb_dr_regs;
+ pr_debug("ioremap %x to %p\n", res->start, pdata->regs);
+
+ if (pdata->init && pdata->init(pdev) != 0)
+ return -EINVAL;
+
+ /* grab the irq */
+ status = request_irq(MAX3353_IRQ, max3353_isr, IRQF_DISABLED,
+ driver_name, p_otg);
+ if (status) {
+ printk(KERN_ERR "max3353: can't get IRQ, rc %d\n", status);
+ return -EINVAL;
+ }
+
+ /* enable interrupts on the part */
+ pr_debug("%s: enabling MAX3353 interrupts\n", __func__);
+ max3353_write_reg(MAX3353_INTR_MASK, IM_ID_GND_EN | IM_ID_FLOAT_EN);
+
+ /* Export DR controller resources */
+ otg_set_resources(pdev->resource);
+
+ /* record initial state of ID pin */
+ p_otg->fsm.id = !max3353_read_id_pin();
+ if (p_otg->fsm.id)
+ p_otg->otg.state = OTG_STATE_UNDEFINED;
+ else
+ p_otg->otg.state = OTG_STATE_A_IDLE;
+
+ pr_debug("initial ID pin: fsm.id=%d (%s)\n", p_otg->fsm.id,
+ p_otg->fsm.id ? "gadget" : "host");
+
+ return 0;
+}
+
+static int __init maxotg_probe(struct platform_device *pdev)
+{
+ int status;
+ struct fsl_usb2_platform_data *pdata;
+
+ pr_debug("%s: pdev=0x%p\n", __func__, pdev);
+
+ if (!pdev)
+ return -ENODEV;
+
+ if (!pdev->dev.platform_data)
+ return -ENOMEM;
+
+ pdata = pdev->dev.platform_data;
+ fsl_set_usb_accessors(pdata);
+
+ /* configure the OTG */
+ status = maxotg_conf(pdev);
+ if (status) {
+ printk(KERN_INFO "Couldn't init OTG module\n");
+ return -status;
+ }
+
+ /* start OTG */
+ status = maxotg_start(pdev);
+
+ return status;
+}
+
+static int __exit maxotg_remove(struct platform_device *pdev)
+{
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+
+ /* disable max3353 interrupts */
+ max3353_write_reg(MAX3353_INTR_MASK, 0);
+
+ otg_set_transceiver(NULL);
+ free_irq(MAX3353_IRQ, max_otg_dev);
+
+ iounmap((void *)usb_dr_regs);
+
+ kfree(max_otg_dev);
+ max_otg_dev = NULL;
+
+ if (pdata->exit)
+ pdata->exit(pdev);
+
+ return 0;
+}
+
+struct platform_driver max3353_otg_driver = {
+ .probe = maxotg_probe,
+ .remove = __exit_p(maxotg_remove),
+ .driver = {
+ .name = driver_name,
+ .owner = THIS_MODULE,
+ },
+};
+
+
+static int __init maxotg_init(void)
+{
+ printk(KERN_INFO DRIVER_DESC " loaded, %s\n", DRIVER_VERSION);
+ return platform_driver_register(&max3353_otg_driver);
+}
+
+static void __exit maxotg_exit(void)
+{
+ platform_driver_unregister(&max3353_otg_driver);
+ printk(KERN_INFO DRIVER_DESC " unloaded\n");
+}
+
+module_init(maxotg_init);
+module_exit(maxotg_exit);
+
+MODULE_DESCRIPTION(DRIVER_INFO);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/arch/m68k/coldfire/m5441x/max3353_xc.c
@@ -0,0 +1,310 @@
+/*
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#define DEBUG
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/usb/fsl_xcvr.h>
+#include <asm/mcfsim.h>
+#include "max3353.h"
+
+#define DRIVER_DESC "Freescale MAX3353 Driver"
+
+static struct i2c_device_id max3353_id[] = {
+ {"max3353", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, max3353_id);
+
+struct max3353_state {
+ struct i2c_client *client;
+};
+
+static int max3353_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int __devexit max3353_remove(struct i2c_client *client);
+
+static struct i2c_driver max3353_i2c_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "max3353",
+ },
+ .probe = max3353_probe,
+ .remove = __devexit_p(max3353_remove),
+ .id_table = max3353_id,
+};
+
+static struct i2c_client *max3353_i2c_client;
+
+/* Write a max3353 register*/
+void max3353_write_reg(u8 reg, u8 data)
+{
+ i2c_smbus_write_byte_data(max3353_i2c_client, reg, data);
+}
+EXPORT_SYMBOL(max3353_write_reg);
+
+/* Read a max3353 register*/
+u8 max3353_read_reg(u8 reg)
+{
+ return i2c_smbus_read_byte_data(max3353_i2c_client, reg);
+}
+EXPORT_SYMBOL(max3353_read_reg);
+
+/*
+ * max3353 I2C probe function
+ */
+
+static int max3353_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct max3353_state *state;
+ struct device *dev = &client->dev;
+
+ state = kzalloc(sizeof(struct max3353_state), GFP_KERNEL);
+ if (state == NULL) {
+ dev_err(dev, "failed to create our state\n");
+ return -ENOMEM;
+ }
+
+ state->client = client;
+ i2c_set_clientdata(client, state);
+
+ max3353_i2c_client = client;
+
+ /* rest of the initialisation goes here. */
+ printk(KERN_INFO "MAX3353 USB charge pump detected\n");
+ pr_debug("MANUF:%02x %02x %02x %02x PID:%02x %02x %02x %02x\n",
+ max3353_read_reg(MAX3353_MAN0),
+ max3353_read_reg(MAX3353_MAN1),
+ max3353_read_reg(MAX3353_MAN2),
+ max3353_read_reg(MAX3353_MAN3),
+ max3353_read_reg(MAX3353_PID0),
+ max3353_read_reg(MAX3353_PID1),
+ max3353_read_reg(MAX3353_PID2),
+ max3353_read_reg(MAX3353_PID3));
+ pr_debug("%s done\n", __func__);
+
+ return 0;
+
+}
+
+/*
+ * max3353 I2C remove function
+ */
+static int __devexit max3353_remove(struct i2c_client *client)
+{
+ struct max3353_state *state = i2c_get_clientdata(client);
+
+ max3353_i2c_client = NULL;
+
+ kfree(state);
+ return 0;
+}
+
+static int max3353_running;
+
+static void max3353_init(struct fsl_xcvr_ops *this)
+{
+ int __maybe_unused rc;
+ u8 tmp;
+
+ pr_debug("%s\n", __func__);
+
+ if (!max3353_running) {
+ i2c_add_driver(&max3353_i2c_driver);
+
+ /* disable interrupts on the part */
+ max3353_write_reg(MAX3353_INTR_MASK, 0);
+
+ /* configure irq mode */
+ tmp = max3353_read_reg(MAX3353_CR1);
+ tmp |= CR1_IRQ_PUSH_PULL;
+ max3353_write_reg(MAX3353_CR1, tmp);
+
+ /* take the part out of shutdown */
+ tmp = max3353_read_reg(MAX3353_CR2);
+ tmp &= ~CR2_SHUTDOWN; /* turn on the part */
+ max3353_write_reg(MAX3353_CR2, tmp);
+ }
+ max3353_running++;
+#if 0
+ /* configure INT2 for max3353 INT */
+ MCF_GPIO_PAR_IRQ0L =
+ (MCF_GPIO_PAR_IRQ0L & MCF_GPIO_PAR_IRQL_IRQ2_MASK) |
+ MCF_GPIO_PAR_IRQL_IRQ2_IRQ2;
+#else
+ /*
+ MCF_GPIO_PAR_IRQ0H |= MCF_GPIO_PAR_IRQH_IRQ7;
+ MCF_EPORT_EPPAR = MCF_EPORT_EPPAR | MCF_EPORT_EPPAR_EPPA7_LEVEL;
+ MCF_EPORT_EPIER = MCF_EPORT_EPIER | MCF_EPORT_EPIER_EPIE7;
+ MCF_INTC0_ICR7 = 2;
+ */
+ /* use IRQ4 on Twr-Ser1 board by J11 selected */
+ MCF_GPIO_PAR_IRQ0H |= MCF_GPIO_PAR_IRQH_IRQ4_IRQ4;
+ MCF_EPORT_EPPAR &= ~MCF_EPORT_EPPAR_EPPA4_LEVEL;
+ MCF_EPORT_EPIER = MCF_EPORT_EPIER | MCF_EPORT_EPIER_EPIE4;
+ MCF_INTC0_ICR4 = 7;
+
+#endif
+ /* Configure USB_DP_PDOWN/USB_DM_PDOWN */
+ MCF_GPIO_PAR_DBGH1 &= ~MCF_GPIO_PAR_DEBUGH1_DAT0;
+ MCF_GPIO_PAR_DBGH1 &= ~MCF_GPIO_PAR_DEBUGH1_DAT1;
+ MCF_GPIO_PDDR_I |= 0xc0;
+ MCF_GPIO_PODR_I &= 0x3f;
+
+ /* Enable VBUS_EN and VBUS_OC signals */
+ MCF_GPIO_PAR_TIMER =
+ (MCF_GPIO_PAR_TIMER &
+ MCF_GPIO_PAR_TIMER_T3IN_MASK) |
+ MCF_GPIO_PAR_TIMER_T3IN_USB0_VBUSEN;
+
+ MCF_GPIO_PAR_TIMER =
+ (MCF_GPIO_PAR_TIMER &
+ MCF_GPIO_PAR_TIMER_T0IN_MASK) |
+ MCF_GPIO_PAR_TIMER_T0IN_USBO_VBUSOC;
+
+ /* Setup USB_VBUS_OC signal to be active-low */
+ MCF_CCM_MISCCR &= (~MCF_CCM_MISCCR_USBOOC);
+ MCF_CCM_MISCCR |= MCF_CCM_MISCCR_USBPUE;
+}
+
+static void max3353_uninit(struct fsl_xcvr_ops *this)
+{
+ pr_debug("%s\n", __func__);
+
+ max3353_running--;
+ if (!max3353_running)
+ i2c_del_driver(&max3353_i2c_driver);
+}
+
+/* set max3353 as USB host */
+static inline void max3353_set_host(void)
+{
+ u8 cr1, cr2, status;
+ pr_debug("%s\n", __func__);
+
+ /* configure transceiver for host mode */
+ cr1 = max3353_read_reg(MAX3353_CR1);
+ cr2 = max3353_read_reg(MAX3353_CR2);
+ status = max3353_read_reg(MAX3353_STATUS);
+ pr_debug("before: CR1 %02x CR2 %02x STATUS %02x\n", cr1, cr2, status);
+
+ cr1 &= ~(CR1_DM_PULLDOWN | CR1_DP_PULLDOWN |
+ CR1_DM_PULLUP | CR1_DP_PULLUP);
+ cr1 |= (CR1_DP_PULLDOWN | CR1_DM_PULLDOWN);
+ max3353_write_reg(MAX3353_CR1, cr1);
+
+ cr1 = max3353_read_reg(MAX3353_CR1);
+ cr2 = max3353_read_reg(MAX3353_CR2);
+ status = max3353_read_reg(MAX3353_STATUS);
+ pr_debug(" after: CR1 %02x CR2 %02x STATUS %02x\n", cr1, cr2, status);
+}
+
+/* set max3353 as USB device */
+static inline void max3353_set_dev(void)
+{
+ u8 cr1;
+ pr_debug("%s\n", __func__);
+
+ /* FS mode, DP pull up */
+ cr1 = max3353_read_reg(MAX3353_CR1);
+ cr1 &= ~(CR1_DM_PULLDOWN | CR1_DM_PULLDOWN | CR1_DP_PULLDOWN);
+ cr1 |= CR1_DP_PULLUP;
+ max3353_write_reg(MAX3353_CR1, cr1);
+
+}
+
+static void max3353_set_vbus_power(struct fsl_xcvr_ops *this, int on)
+{
+ pr_debug("%s(on=%d)\n", __func__, on);
+}
+
+
+/* Enable or disable the D+ pullup. */
+static void max3353_pullup(int on)
+{
+ u8 cr1;
+ unsigned short ccm;
+
+ pr_debug("%s(%d)\n", __func__, on);
+
+ cr1 = max3353_read_reg(MAX3353_CR1);
+ cr1 &= ~(CR1_DM_PULLDOWN | CR1_DP_PULLDOWN |
+ CR1_DM_PULLUP | CR1_DP_PULLUP);
+
+ ccm = MCF_CCM_UOCSR;
+ if (on) {
+ cr1 |= CR1_DP_PULLUP;
+ ccm |= MCF_CCM_UOCSR_BVLD;
+ ccm &= ~MCF_CCM_UOCSR_SEND;
+ } else {
+ ccm &= ~MCF_CCM_UOCSR_BVLD;
+ }
+
+ max3353_write_reg(MAX3353_CR1, cr1);
+ MCF_CCM_UOCSR = ccm;
+}
+
+/*
+ * return the state of the ID pin.
+ * return: 0 Mini-B or nothing connected (Gadget mode)
+ * 1 Mini-A connected (Host mode)
+ */
+int max3353_read_id_pin(void)
+{
+ u8 status = max3353_read_reg(MAX3353_STATUS);
+ return !!(status & STATUS_ID_GND);
+}
+EXPORT_SYMBOL(max3353_read_id_pin);
+
+static struct fsl_xcvr_ops max3353_ops = {
+ .name = "dr-max3353",
+ .init = max3353_init,
+ .uninit = max3353_uninit,
+ .set_host = max3353_set_host,
+ .set_device = max3353_set_dev,
+ .set_vbus_power = max3353_set_vbus_power,
+ .pullup = max3353_pullup,
+};
+
+/* module init routine. register the transceiver */
+static int __init max3353xc_init(void)
+{
+ pr_debug("%s\n", __func__);
+
+ fsl_usb_xcvr_register(&max3353_ops);
+ return 0;
+}
+
+static void __exit max3353xc_exit(void)
+{
+ pr_debug("%s\n", __func__);
+ fsl_usb_xcvr_unregister(&max3353_ops);
+}
+
+module_init(max3353xc_init);
+module_exit(max3353xc_exit);
+
+MODULE_ALIAS("max3353");
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("max3353 transceiver driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/arch/m68k/coldfire/m5441x/usb.c
@@ -0,0 +1,276 @@
+/*
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/fsl_devices.h>
+#include <linux/usb/fsl_xcvr.h>
+#include <asm/mcfsim.h>
+
+#define MCF_SCM_BCR MCF_REG32(0xFC040024)
+#define MCF_SCM_BCR_GBR (1 << 9) /* global bursts for read */
+#define MCF_SCM_BCR_GBW (1 << 8) /* global bursts for write */
+#define MCF_SCM_BCR_SBE_ALL (0xff << 0) /* slave burst enable */
+
+#define MAX_XCVR 3
+struct fsl_xcvr_ops *g_xc_ops[MAX_XCVR] = { NULL };
+
+#ifdef ULPI_DEBUG
+void print_ulpi_regs(void)
+{
+ pr_debug("MCF_SCM_BCR=0x%08lx MCF_CCM_MISCCR=0x%08x "
+ "MCF_CCM_MISSCR2=0x%08x "
+ "MCF_GPIO_PAR_TIMER=0x%08x MCF_GPIO_PAR_FEC=08%08x "
+ "MCF_GPIO_PAR_SIMP0H=08%08x MCF_GPIO_PODR_G=08%08x\n",
+ MCF_SCM_BCR, MCF_CCM_MISCCR,
+ MCF_CCM_MISCCR2, MCF_GPIO_PAR_TIMER,
+ MCF_GPIO_PAR_FEC, MCF_GPIO_PAR_SIMP0H, MCF_GPIO_PODR_G);
+}
+EXPORT_SYMBOL(print_ulpi_regs);
+#endif
+
+static inline void fsl_usb_enable_clk(void)
+{
+ pr_debug("%s\n", __func__);
+
+#if defined(CONFIG_USB_M5441X_MAX3353_FSLS)
+ MCF_PM_PPMCR0 = 0x30;
+ MCF_CCM_MISCCR &= ~(MCF_CCM_MISCCR_USBOOC | MCF_CCM_MISCCR_USBHOC);
+ MCF_CCM_MISCCR |= MCF_CCM_MISCCR_USBSRC;
+#elif !defined(CONFIG_USB_M5441X_PLLCLK)
+ /* Use external clock source if PLL isn't a multiple of 60MHz */
+ MCF_CCM_MISCCR &= ~MCF_CCM_MISCCR_USBSRC;
+
+ /* Initialize the USB Clock: use USB input clock */
+ MCF_GPIO_PAR_IRQ0L =
+ (MCF_GPIO_PAR_IRQ0L &
+ MCF_GPIO_PAR_IRQL_IRQ6_MASK) |
+ MCF_GPIO_PAR_IRQL_IRQ6_USBCLKIN;
+#else
+ uint fvco, usbclk;
+
+ fvco = CONFIG_MCFCLK * ((MCF_PLL_DR & MCF_PLL_DR_OUTDIV1) + 1);
+ usbclk = fvco / (((MCF_PLL_DR & MCF_PLL_DR_OUTDIV4) >> 16) + 1);
+
+ if (usbclk != 60000000)
+ printk(KERN_ERR, "The usb host clock must be 60MHZ!\n\n");
+
+ MCF_PM_PPMCR0 = 0x30;
+ MCF_CCM_MISCCR |= MCF_CCM_MISCCR_USBSRC;
+#endif
+}
+
+static inline void fsl_usb_disable_clk(void)
+{
+ pr_debug("%s\n", __func__);
+}
+
+void fsl_usb_xcvr_register(struct fsl_xcvr_ops *xcvr_ops)
+{
+ int i;
+
+ pr_debug("%s '%s'\n", __func__, xcvr_ops->name);
+ for (i = 0; i < MAX_XCVR; i++) {
+ if (g_xc_ops[i] == NULL) {
+ g_xc_ops[i] = xcvr_ops;
+ return;
+ }
+ }
+
+ pr_debug("%s failed\n", __func__);
+}
+EXPORT_SYMBOL_GPL(fsl_usb_xcvr_register);
+
+void fsl_usb_xcvr_unregister(struct fsl_xcvr_ops *xcvr_ops)
+{
+ int i;
+
+ pr_debug("%s '%s'\n", __func__, xcvr_ops->name);
+ for (i = 0; i < MAX_XCVR; i++) {
+ if (g_xc_ops[i] == xcvr_ops) {
+ g_xc_ops[i] = NULL;
+ return;
+ }
+ }
+
+ pr_debug("%s failed\n", __func__);
+}
+EXPORT_SYMBOL_GPL(fsl_usb_xcvr_unregister);
+
+static struct fsl_xcvr_ops *fsl_usb_get_xcvr(char *name)
+{
+ int i;
+
+ pr_debug("%s '%s'\n", __func__, name);
+ if (name == NULL) {
+ printk(KERN_ERR "get_xcvr(): No tranceiver name\n");
+ return NULL;
+ }
+
+ for (i = 0; i < MAX_XCVR; i++) {
+ if (strcmp(g_xc_ops[i]->name, name) == 0)
+ return g_xc_ops[i];
+ }
+ pr_debug("Failed %s\n", __func__);
+ return NULL;
+}
+
+/* The dmamask must be set for EHCI to work */
+static u64 ehci_dmamask = ~(u32) 0;
+
+/*!
+ * Register an instance of a USB host platform device.
+ *
+ * @param res: resource pointer
+ * @param n_res: number of resources
+ * @param config: config pointer
+ *
+ * @return newly-registered platform_device
+ *
+ * Each supported host interface is registered as an instance
+ * of the "fsl-ehci" device. Call this function multiple times
+ * to register each host interface.
+ */
+static int instance_id;
+struct platform_device *host_pdev_register(struct resource *res, int n_res,
+ struct fsl_usb2_platform_data *config)
+{
+ struct platform_device *pdev;
+ int rc;
+
+ pr_debug("register host res=0x%p, size=%d\n", res, n_res);
+
+ pdev = platform_device_register_simple("fsl-ehci",
+ instance_id, res, n_res);
+ if (IS_ERR(pdev)) {
+ printk(KERN_ERR "usb: can't register %s Host, %ld\n",
+ config->name, PTR_ERR(pdev));
+ return NULL;
+ }
+
+ pdev->dev.coherent_dma_mask = 0xffffffff;
+ pdev->dev.dma_mask = &ehci_dmamask;
+
+ rc = platform_device_add_data(pdev, config,
+ sizeof(struct fsl_usb2_platform_data));
+ if (rc) {
+ platform_device_unregister(pdev);
+ return NULL;
+ }
+
+ printk(KERN_INFO "usb: %s host (%s) registered\n", config->name,
+ config->transceiver);
+ pr_debug("pdev=0x%p dev=0x%p resources=0x%p pdata=0x%p\n",
+ pdev, &pdev->dev, pdev->resource, pdev->dev.platform_data);
+
+ instance_id++;
+
+ return pdev;
+}
+
+int usb_platform_host_init(struct platform_device *pdev)
+{
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+ struct fsl_xcvr_ops *xops;
+
+ xops = fsl_usb_get_xcvr(pdata->transceiver);
+ if (!xops) {
+ printk(KERN_ERR "DR transceiver ops missing\n");
+ return -EINVAL;
+ }
+ pdata->xcvr_ops = xops;
+ pdata->xcvr_type = xops->xcvr_type;
+ pdata->pdev = pdev;
+ xops->pdata = pdata;
+
+ if (pdata->gpio_usb_active)
+ if (pdata->gpio_usb_active())
+ return -EINVAL;
+
+ /* enable USB read, write and slave bursts */
+ MCF_SCM_BCR = MCF_SCM_BCR_GBR | MCF_SCM_BCR_GBW | MCF_SCM_BCR_SBE_ALL;
+ fsl_usb_enable_clk();
+
+ if (xops->init)
+ xops->init(xops);
+
+ return 0;
+}
+
+void usb_platform_host_uninit(struct platform_device *pdev)
+{
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+
+ if (pdata->xcvr_ops && pdata->xcvr_ops->uninit)
+ pdata->xcvr_ops->uninit(pdata->xcvr_ops);
+
+ pdata->regs = NULL;
+
+ if (pdata->gpio_usb_inactive)
+ pdata->gpio_usb_inactive();
+
+ fsl_usb_disable_clk();
+}
+
+
+static int dr_used;
+
+int usb_platform_dr_init(struct platform_device *pdev)
+{
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+ struct fsl_xcvr_ops *xops;
+
+ pr_debug("%s: pdev=0x%p pdata=0x%p\n", __func__, pdev, pdata);
+
+ xops = fsl_usb_get_xcvr(pdata->transceiver);
+ if (!xops) {
+ printk(KERN_ERR "DR transceiver ops missing\n");
+ return -EINVAL;
+ }
+ pdata->xcvr_ops = xops;
+ pdata->xcvr_type = xops->xcvr_type;
+ pdata->pdev = pdev;
+ xops->pdata = pdata;
+
+ /* enable USB read, write and slave bursts */
+ MCF_SCM_BCR = MCF_SCM_BCR_GBR | MCF_SCM_BCR_GBW | MCF_SCM_BCR_SBE_ALL;
+
+ if (!dr_used) {
+ fsl_usb_enable_clk();
+
+ if (xops->init)
+ xops->init(xops);
+ }
+
+ dr_used++;
+ pr_debug("%s: success\n", __func__);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usb_platform_dr_init);
+
+void usb_platform_dr_uninit(struct platform_device *pdev)
+{
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+ pr_debug("%s\n", __func__);
+
+ dr_used--;
+ if (!dr_used) {
+ if (pdata->xcvr_ops && pdata->xcvr_ops->uninit)
+ pdata->xcvr_ops->uninit(pdata->xcvr_ops);
+
+ pdata->regs = NULL;
+ fsl_usb_disable_clk();
+ }
+}
+EXPORT_SYMBOL_GPL(usb_platform_dr_uninit);
--- /dev/null
+++ b/arch/m68k/coldfire/m5441x/usb.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+extern int usb_platform_host_init(struct platform_device *pdev);
+extern void usb_platform_host_uninit(struct fsl_usb2_platform_data *pdata);
+extern int usb_platform_dr_init(struct platform_device *pdev);
+extern void usb_platform_dr_uninit(struct fsl_usb2_platform_data *pdata);
+extern struct platform_device *host_pdev_register(struct resource *res,
+ int n_res, struct fsl_usb2_platform_data *config);
+
+
+#if defined CONFIG_USB_EHCI_HCD || defined CONFIG_USB_EHCI_HCD_MODULE
+static inline void dr_register_host(struct resource *r, int rs)
+{
+ PDATA->operating_mode = DR_HOST_MODE;
+ host_pdev_register(r, rs, PDATA);
+}
+#else
+static inline void dr_register_host(struct resource *r, int rs)
+{
+}
+#endif
+
+#ifdef CONFIG_USB_GADGET_FSL_USB2
+static struct platform_device dr_udc_device;
+
+static inline void dr_register_udc(void)
+{
+ PDATA->operating_mode = DR_UDC_MODE;
+ dr_udc_device.dev.platform_data = PDATA;
+
+ if (platform_device_register(&dr_udc_device))
+ printk(KERN_ERR "usb: can't register DR gadget\n");
+ else
+ printk(KERN_INFO "usb: DR gadget (%s) registered\n",
+ PDATA->transceiver);
+}
+#else
+static inline void dr_register_udc(void)
+{
+}
+#endif
+
+#ifdef CONFIG_USB_OTG
+static struct platform_device dr_otg_device;
+
+/*
+ * set the proper operating_mode and
+ * platform_data pointer, then register the
+ * device.
+ */
+static inline void dr_register_otg(void)
+{
+ PDATA->operating_mode = FSL_USB2_DR_OTG;
+ dr_otg_device.dev.platform_data = PDATA;
+
+ if (platform_device_register(&dr_otg_device))
+ printk(KERN_ERR "usb: can't register otg device\n");
+ else
+ printk(KERN_INFO "usb: DR OTG registered\n");
+}
+#else
+static inline void dr_register_otg(void)
+{
+}
+#endif
--- /dev/null
+++ b/arch/m68k/coldfire/m5441x/usb_dr.c
@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/fsl_devices.h>
+#include <asm/mcfsim.h>
+
+#define USB_OTGREGS_BASE MCF_REG32(0xFC0B0000)
+#define INT_USB (64 + 64 + 64 + 17) /* INTC1:17 17.2.9.1*/
+#define INT_UOCSR (64 + 64 + 64 + 27) /* INTC1:27 17.2.9.1 */
+
+/*
+ * Determine which platform_data struct to use, based on which
+ * transceiver is configured.
+ * PDATA is a pointer to it.
+ */
+#ifdef CONFIG_USB_M5441X_ULPI
+static struct fsl_usb2_platform_data dr_config_ulpi;
+#define PDATA (&dr_config_ulpi)
+#else
+static struct fsl_usb2_platform_data dr_config_fsls;
+#define PDATA (&dr_config_fsls)
+#endif
+
+/*
+ * Used to set pdata->operating_mode before registering the platform_device.
+ * If OTG is configured, the controller operates in OTG mode,
+ * otherwise it's either host or device.
+ */
+#ifdef CONFIG_USB_OTG
+#define DR_UDC_MODE FSL_USB2_DR_OTG
+#define DR_HOST_MODE FSL_USB2_DR_OTG
+#else
+#define DR_UDC_MODE FSL_USB2_DR_DEVICE
+#define DR_HOST_MODE FSL_USB2_DR_HOST
+#endif
+
+#include "usb.h"
+
+/*
+ * platform data structs
+ * - Which one to use is determined by CONFIG options in usb.h
+ * - operating_mode plugged at run time
+ */
+
+/* off-chip ULPI transceiver */
+static struct fsl_usb2_platform_data __maybe_unused dr_config_ulpi = {
+ .name = "DR",
+ .init = usb_platform_dr_init,
+ .exit = usb_platform_dr_uninit,
+ .phy_mode = FSL_USB2_PHY_ULPI,
+ .transceiver = "dr-ulpi",
+ .power_budget = 500,
+ .es = 1,
+ .big_endian_mmio = 1,
+ .big_endian_desc = 1,
+ .le_setup_buf = 1,
+};
+
+/* on-chip FS/LS serial transceiver */
+static struct fsl_usb2_platform_data __maybe_unused dr_config_fsls = {
+ .name = "DR",
+ .init = usb_platform_dr_init,
+ .exit = usb_platform_dr_uninit,
+ .phy_mode = FSL_USB2_PHY_SERIAL,
+#ifdef CONFIG_USB_M5441X_MAX3353_FSLS
+ .transceiver = "dr-max3353",
+#else
+ .transceiver = "dr-fsls",
+#endif
+ .power_budget = 500,
+ .es = 1,
+ .big_endian_mmio = 1,
+ .big_endian_desc = 1,
+ .le_setup_buf = 1,
+};
+
+/*
+ * resources
+ */
+static struct resource dr_udc_resources[] = {
+ [0] = {
+ .start = (u32)(&USB_OTGREGS_BASE),
+ .end = (u32)(&USB_OTGREGS_BASE + 0x1ff),
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = INT_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource dr_otg_resources[] = {
+ [0] = {
+ .start = (u32)(&USB_OTGREGS_BASE),
+ .end = (u32)(&USB_OTGREGS_BASE + 0x1ff),
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = INT_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource dr_host_resources[] = {
+ [0] = {
+ .start = (u32)(&USB_OTGREGS_BASE),
+ .end = (u32)(&USB_OTGREGS_BASE + 0x1ff),
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = INT_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 dr_udc_dmamask = ~(u32) 0;
+static void dr_udc_release(struct device *dev)
+{
+}
+
+static u64 dr_otg_dmamask = ~(u32) 0;
+static void dr_otg_release(struct device *dev)
+{
+}
+
+/*
+ * platform device structs
+ * dev.platform_data field plugged at run time
+ */
+static struct platform_device __maybe_unused dr_udc_device = {
+ .name = "fsl-usb2-udc",
+ .id = -1,
+ .dev = {
+ .release = dr_udc_release,
+ .dma_mask = &dr_udc_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = dr_udc_resources,
+ .num_resources = ARRAY_SIZE(dr_udc_resources),
+};
+
+static struct platform_device __maybe_unused dr_otg_device = {
+#ifdef CONFIG_USB_M5441X_MAX3353_FSLS
+ .name = "max3353-otg",
+#else
+ .name = "fsl-usb2-otg",
+#endif
+ .id = -1,
+ .dev = {
+ .release = dr_otg_release,
+ .dma_mask = &dr_otg_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = dr_otg_resources,
+ .num_resources = ARRAY_SIZE(dr_otg_resources),
+};
+
+static int __init usb_dr_init(void)
+{
+ pr_debug("%s:\n", __func__);
+
+ dr_register_otg();
+ dr_register_host(dr_host_resources, ARRAY_SIZE(dr_host_resources));
+ dr_register_udc();
+
+ return 0;
+}
+
+module_init(usb_dr_init);
--- /dev/null
+++ b/arch/m68k/coldfire/m5441x/usb_host.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2004-2011 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/fsl_devices.h>
+#include <asm/mcfsim.h>
+
+#define USB_H1REGS_BASE (0xFC0B4000)
+#define INT_USB_HOST (64 + 64 + 64 + 18) /* INTC1:18*/
+
+
+/*
+ * Define Host module platform_data struct to use, based on which
+ * transceiver is configured.
+ * PDATA is a pointer to it.
+ */
+#if defined(CONFIG_USB_M5441X_H1_FSLS)
+static struct fsl_usb2_platform_data h1_config_fsls;
+#define PDATA (&h1_config_fsls)
+#else
+#warning "Unknow ColdFire USB Host module transceiver!"
+#endif
+/*
+ * Used to set pdata->operating_mode before registering the platform_device.
+ */
+#define DR_UDC_MODE FSL_USB2_DR_DEVICE
+#define DR_HOST_MODE FSL_USB2_DR_HOST
+
+#include "usb.h"
+
+static int h1_gpio_active(void)
+{
+ /* Configure USB_DP_PDOWN/USB_DM_PDOWN (external resistor) */
+ MCF_GPIO_PAR_DBGH1 &= ~MCF_GPIO_PAR_DEBUGH1_DAT0;
+ MCF_GPIO_PAR_DBGH1 &= ~MCF_GPIO_PAR_DEBUGH1_DAT1;
+ MCF_GPIO_PDDR_I |= 0xc0;
+ MCF_GPIO_PODR_I &= 0x3f;
+
+ MCF_GPIO_PAR_CS &= 0x0F; /*Enable GPIOB5, GPIOB6*/
+
+ MCF_GPIO_PDDR_B &= 0xDF; /*GPIOB5, input, USB_OC*/
+ MCF_GPIO_PCR_B |= 0x0C00; /*pull up*/
+
+ MCF_GPIO_PDDR_B |= 0x40; /*GPIOB6, output*/
+ MCF_GPIO_PODR_B |= 0x40; /*GPIOB6, output 1, VBUS enable*/
+ MCF_GPIO_PCR_B &= ~0x3000; /*pull disable*/
+
+ return 0;
+}
+
+static void h1_gpio_inactive(void)
+{
+ MCF_GPIO_PODR_B &= 0xBF; /*GPIOB6, output 0*/
+}
+
+
+/*
+ * platform data struct
+ * - operating_mode plugged at run time
+ */
+
+/* on-chip FS/LS serial transceiver */
+static struct fsl_usb2_platform_data usbh1_config = {
+ .name = "Host1",
+ .init = usb_platform_host_init,
+ .exit = usb_platform_host_uninit,
+ .operating_mode = FSL_USB2_MPH_HOST,
+ .power_budget = 500, /* MIC2076: 500 mA max power */
+ .phy_mode = FSL_USB2_PHY_SERIAL, /* FS/LS on-chip xcvr */
+ .transceiver = "h1-fsls",
+ .gpio_usb_active = h1_gpio_active,
+ .gpio_usb_inactive = h1_gpio_inactive,
+ .es = 1,
+ .big_endian_mmio = 1,
+ .big_endian_desc = 1,
+};
+
+/*
+ * resources
+ */
+static struct resource h1_resources[] = {
+ [0] = {
+ .start = USB_H1REGS_BASE,
+ .end = USB_H1REGS_BASE + 0x1ff,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = INT_USB_HOST,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static int __init usbh1_init(void)
+{
+ host_pdev_register(h1_resources, ARRAY_SIZE(h1_resources),
+ &usbh1_config);
+ return 0;
+}
+module_init(usbh1_init);
--- /dev/null
+++ b/arch/m68k/coldfire/m5441x/xcvr.c
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/usb/fsl_xcvr.h>
+#include <asm/mcfsim.h>
+
+/* Use the configured xcvr_ops */
+#ifdef CONFIG_USB_M5441X_ULPI
+#define XCVR_OPS (&xcvr_ops_ulpi)
+#elif defined CONFIG_USB_M5441X_FSLS
+#define XCVR_OPS (&xcvr_ops_fsls)
+#else
+#error "Invalid USB transceiver selection."
+#endif
+
+#define MCF_FEC_ENET0_RCR MCF_REG32(0xFC0D4084)
+
+/*
+ * Init routine for on-chip FSLS xcvr
+ */
+static void xcvr_fsls_init(struct fsl_xcvr_ops *this)
+{
+ pr_debug("%s: name=%s\n", __func__, this->name);
+
+ /* Configure USB_DP_PDOWN/USB_DM_PDOWN (external resistor) */
+ MCF_GPIO_PAR_DBGH1 &= ~MCF_GPIO_PAR_DEBUGH1_DAT0;
+ MCF_GPIO_PAR_DBGH1 &= ~MCF_GPIO_PAR_DEBUGH1_DAT1;
+ MCF_GPIO_PDDR_I |= 0xc0;
+ MCF_GPIO_PODR_I &= 0x3f;
+
+
+ MCF_GPIO_PAR_CS &= 0x0F; /*Enable GPIOB5, GPIOB6*/
+
+ MCF_GPIO_PDDR_B &= 0xDF; /*GPIOB5, input*/
+ MCF_GPIO_PDDR_B |= 0x40; /*GPIOB6, output*/
+
+ MCF_GPIO_PODR_B |= 0x40; /*GPIOB6, output 1*/
+#if 0
+ /* Enable VBUS_EN and VBUS_OC signals */
+ MCF_GPIO_PAR_TIMER =
+ (MCF_GPIO_PAR_TIMER &
+ MCF_GPIO_PAR_TIMER_T3IN_MASK) |
+ MCF_GPIO_PAR_TIMER_T3IN_USB0_VBUSEN;
+
+ MCF_GPIO_PAR_TIMER =
+ (MCF_GPIO_PAR_TIMER &
+ MCF_GPIO_PAR_TIMER_T0IN_MASK) |
+ MCF_GPIO_PAR_TIMER_T0IN_USBO_VBUSOC;
+
+ /* Setup USB_VBUS_OC signal to be active-low */
+ MCF_CCM_MISCCR &= (~MCF_CCM_MISCCR_USBOOC);
+ MCF_CCM_MISCCR |= MCF_CCM_MISCCR_USBPUE;
+#endif
+
+}
+
+/*
+ * Init routine for off-chip ULPI xcvr
+ */
+static void xcvr_ulpi_init(struct fsl_xcvr_ops *this)
+{
+ pr_debug("%s: name=%s\n", __func__, this->name);
+
+ /* disable FEC2 clock */
+ MCF_PM_PPMSR0 = 54;
+
+ /* enable USB OTG clock*/
+ MCF_PM_PPMCR0 = 44;
+
+ /* Chip select for ULPI: GPIO G4 as CS between ULPI and RMII1*/
+ MCF_GPIO_PAR_SIMP0H =
+ (MCF_GPIO_PAR_SIMP0H &
+ MCF_GPIO_PAR_SIMP0H_DAT_MASK) |
+ MCF_GPIO_PAR_SIMP0H_DAT_GPIO;
+
+ MCF_GPIO_PDDR_G =
+ (MCF_GPIO_PDDR_G &
+ MCF_GPIO_PDDR_G4_MASK) |
+ MCF_GPIO_PDDR_G4_OUTPUT;
+
+ MCF_GPIO_PODR_G =
+ (MCF_GPIO_PODR_G &
+ MCF_GPIO_PODR_G4_MASK) |
+ MCF_GPIO_PODR_G4_VAL;
+
+ /* Enable ULPI */
+ MCF_CCM_MISCCR2 = MCF_CCM_MISCCR2 & (~MCF_CCM_MISCCR2_ULPI);
+
+ /* Slew rate setting for OTG */
+ MCF_GPIO_SRCR_FEC = 0x0f;
+ MCF_GPIO_SRCR_TIMER = 0xc3;
+ MCF_GPIO_SRCR_IRQ0 = 0x03;
+
+ /* Enable the required ULPI signals */
+ MCF_GPIO_PAR_TIMER =
+ (MCF_GPIO_PAR_TIMER &
+ MCF_GPIO_PAR_TIMER_T3IN_MASK) |
+ MCF_GPIO_PAR_TIMER_T3IN_ULPI_DIR;
+
+ MCF_GPIO_PAR_TIMER =
+ (MCF_GPIO_PAR_TIMER &
+ MCF_GPIO_PAR_TIMER_T0IN_MASK) |
+ MCF_GPIO_PAR_TIMER_T0IN_ULPI_NXT;
+
+ MCF_FEC_ENET0_RCR = 0x104; /* FEC0 as RMII mode */
+
+ MCF_GPIO_PAR_FEC =
+ (MCF_GPIO_PAR_FEC &
+ MCF_GPIO_PAR_FEC_FEC_MASK) |
+ MCF_GPIO_PAR_FEC_FEC_RMII0FUL_ULPI;
+
+
+ pr_debug("MCF_GPIO_PAR_TIMER:0x%x, MCF_GPIO_PAR_FEC:0x%x,"
+ "MCF_GPIO_PAR_SIMP0H:0x%x, MCF_GPIO_PDDR_G:0x%x,"
+ "MCF_GPIO_PODR_G:0x%x, MCF_CCM_MISCCR2:0x%x\n\n",
+ MCF_GPIO_PAR_TIMER, MCF_GPIO_PAR_FEC,
+ MCF_GPIO_PAR_SIMP0H, MCF_GPIO_PDDR_G,
+ MCF_GPIO_PODR_G, MCF_CCM_MISCCR2);
+
+ pr_debug("OTGSC:0x%lx, PORTSC:0x%lx, USBMODE:0x%lx, "
+ "USBCMD:0x%lx, USBSTS:0x%lx, USBINTR:0x%lx, "
+ "MCF_CCM_UOCSR:0x%x\n\n",
+ MCF_REG32(0xfc0b01a4), MCF_REG32(0xfc0b0184),
+ MCF_REG32(0xfc0b01a8), MCF_REG32(0xfc0b0140),
+ MCF_REG32(0xfc0b0144), MCF_REG32(0xfc0b0148),
+ MCF_CCM_UOCSR);
+}
+
+static void xcvr_uninit(struct fsl_xcvr_ops *this)
+{
+ pr_debug("%s\n", __func__);
+}
+
+static void xcvr_pullup(int on)
+{
+ unsigned short ccm = in_be16(&MCF_CCM_UOCSR);
+
+ pr_debug("%s(%d)\n", __func__, on);
+
+ ccm = in_be16(&MCF_CCM_UOCSR);
+ if (on) {
+ ccm |= MCF_CCM_UOCSR_BVLD;
+ ccm &= ~MCF_CCM_UOCSR_SEND;
+ out_be16(&MCF_CCM_UOCSR, ccm);
+ } else {
+ ccm &= ~MCF_CCM_UOCSR_BVLD;
+ out_be16(&MCF_CCM_UOCSR, ccm);
+ }
+}
+
+struct fsl_xcvr_ops xcvr_ops_ulpi = {
+ .init = xcvr_ulpi_init,
+ .uninit = xcvr_uninit,
+ .pullup = xcvr_pullup,
+ .name = "dr-ulpi",
+};
+
+struct fsl_xcvr_ops xcvr_ops_fsls = {
+ .init = xcvr_fsls_init,
+ .uninit = xcvr_uninit,
+ .pullup = xcvr_pullup,
+ .name = "dr-fsls",
+};
+
+static int __init usb_xcvr_init(void)
+{
+ struct fsl_xcvr_ops *xops = XCVR_OPS;
+
+ pr_debug("%s %s\n", __func__, xops->name);
+ fsl_usb_xcvr_register(xops);
+
+ return 0;
+}
+
+static void __exit usb_xcvr_exit(void)
+{
+ fsl_usb_xcvr_unregister(XCVR_OPS);
+}
+
+module_init(usb_xcvr_init);
+module_exit(usb_xcvr_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("External ULPI xcvr driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/arch/m68k/coldfire/m5441x/xcvr_host.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2005-2011 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/usb/fsl_xcvr.h>
+#include <asm/mcfsim.h>
+
+/*
+ * xcvr_ops for the on-chip xcvr on the DR controller
+ * No ops needed.
+ */
+struct fsl_xcvr_ops xcvr_ops_h1_fsls = {
+ .name = "h1-fsls",
+};
+
+
+static int __init usb_xcvr_host_init(void)
+{
+ fsl_usb_xcvr_register(&xcvr_ops_h1_fsls);
+
+ return 0;
+}
+
+static void __exit usb_xcvr_host_exit(void)
+{
+ fsl_usb_xcvr_unregister(&xcvr_ops_h1_fsls);
+}
+
+module_init(usb_xcvr_host_init);
+module_exit(usb_xcvr_host_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("On-chip FS/LS xcvr host driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/arch/m68k/coldfire/m5445x/usb.c
@@ -0,0 +1,220 @@
+/*
+ * Copyright 2004-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/fsl_devices.h>
+#include <linux/usb/fsl_xcvr.h>
+#include <asm/mcfsim.h>
+
+#define MCF_SCM_BCR MCF_REG32(0xFC040024)
+#define MCF_SCM_BCR_GBR (1 << 9) /* global bursts for read */
+#define MCF_SCM_BCR_GBW (1 << 8) /* global bursts for write */
+#define MCF_SCM_BCR_SBE_ALL (0xff << 0) /* slave burst enable */
+
+#define MAX_XCVR 3
+struct fsl_xcvr_ops *g_xc_ops[MAX_XCVR] = { NULL };
+
+#ifdef ULPI_DEBUG
+void print_ulpi_regs(void)
+{
+ pr_debug("MCF_SCM_BCR=0x%08lx MCF_CCM_MISCCR=0x%08x "
+ "MCF_GPIO_PAR_DMA=0x%08x MCF_GPIO_PAR_USB=08%08x "
+ "MCF_GPIO_PAR_FEC=08%08x\n",
+ MCF_SCM_BCR, MCF_CCM_MISCCR, MCF_GPIO_PAR_DMA,
+ MCF_GPIO_PAR_USB, MCF_GPIO_PAR_FEC);
+}
+EXPORT_SYMBOL(print_ulpi_regs);
+#endif
+
+static inline void fsl_usb_enable_clk(void)
+{
+ pr_debug("%s\n", __func__);
+
+ /* Use external clock source if PLL isn't a multiple of 60MHz */
+ MCF_CCM_MISCCR &= ~MCF_CCM_MISCCR_USBSRC;
+
+ /* Initialize the USB Clock: use USB input clock */
+ MCF_GPIO_PAR_DMA = (MCF_GPIO_PAR_DMA & MCF_GPIO_PAR_DMA_DREQ1_MASK) |
+ MCF_GPIO_PAR_DMA_DREQ1_USB_CLKIN;
+}
+
+static inline void fsl_usb_disable_clk(void)
+{
+ pr_debug("%s\n", __func__);
+}
+
+void fsl_usb_xcvr_register(struct fsl_xcvr_ops *xcvr_ops)
+{
+ int i;
+
+ pr_debug("%s '%s'\n", __func__, xcvr_ops->name);
+ for (i = 0; i < MAX_XCVR; i++) {
+ if (g_xc_ops[i] == NULL) {
+ g_xc_ops[i] = xcvr_ops;
+ return;
+ }
+ }
+
+ pr_debug("%s failed\n", __func__);
+}
+EXPORT_SYMBOL_GPL(fsl_usb_xcvr_register);
+
+void fsl_usb_xcvr_unregister(struct fsl_xcvr_ops *xcvr_ops)
+{
+ int i;
+
+ pr_debug("%s '%s'\n", __func__, xcvr_ops->name);
+ for (i = 0; i < MAX_XCVR; i++) {
+ if (g_xc_ops[i] == xcvr_ops) {
+ g_xc_ops[i] = NULL;
+ return;
+ }
+ }
+
+ pr_debug("%s failed\n", __func__);
+}
+EXPORT_SYMBOL_GPL(fsl_usb_xcvr_unregister);
+
+static struct fsl_xcvr_ops *fsl_usb_get_xcvr(char *name)
+{
+ int i;
+
+ pr_debug("%s '%s'\n", __func__, name);
+ if (name == NULL) {
+ printk(KERN_ERR "get_xcvr(): No tranceiver name\n");
+ return NULL;
+ }
+
+ for (i = 0; i < MAX_XCVR; i++) {
+ if (strcmp(g_xc_ops[i]->name, name) == 0)
+ return g_xc_ops[i];
+ }
+ pr_debug("Failed %s\n", __func__);
+ return NULL;
+}
+
+/* The dmamask must be set for EHCI to work */
+static u64 ehci_dmamask = ~(u32) 0;
+
+/*!
+ * Register an instance of a USB host platform device.
+ *
+ * @param res: resource pointer
+ * @param n_res: number of resources
+ * @param config: config pointer
+ *
+ * @return newly-registered platform_device
+ *
+ * Each supported host interface is registered as an instance
+ * of the "fsl-ehci" device. Call this function multiple times
+ * to register each host interface.
+ */
+static int instance_id;
+struct platform_device *host_pdev_register(struct resource *res, int n_res,
+ struct fsl_usb2_platform_data *config)
+{
+ struct platform_device *pdev;
+ int rc;
+
+ pr_debug("register host res=0x%p, size=%d\n", res, n_res);
+
+ pdev = platform_device_register_simple("fsl-ehci",
+ instance_id, res, n_res);
+ if (IS_ERR(pdev)) {
+ printk(KERN_ERR "usb: can't register %s Host, %ld\n",
+ config->name, PTR_ERR(pdev));
+ return NULL;
+ }
+
+ pdev->dev.coherent_dma_mask = 0xffffffff;
+ pdev->dev.dma_mask = &ehci_dmamask;
+
+ rc = platform_device_add_data(pdev, config,
+ sizeof(struct fsl_usb2_platform_data));
+ if (rc) {
+ platform_device_unregister(pdev);
+ return NULL;
+ }
+
+ printk(KERN_INFO "usb: %s host (%s) registered\n", config->name,
+ config->transceiver);
+ pr_debug("pdev=0x%p dev=0x%p resources=0x%p pdata=0x%p\n",
+ pdev, &pdev->dev, pdev->resource, pdev->dev.platform_data);
+
+ instance_id++;
+
+ return pdev;
+}
+
+
+static int dr_used;
+
+int usb_platform_dr_init(struct platform_device *pdev)
+{
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+ struct fsl_xcvr_ops *xops;
+
+ pr_debug("%s: pdev=0x%p pdata=0x%p\n", __func__, pdev, pdata);
+
+ xops = fsl_usb_get_xcvr(pdata->transceiver);
+ if (!xops) {
+ printk(KERN_ERR "DR transceiver ops missing\n");
+ return -EINVAL;
+ }
+ pdata->xcvr_ops = xops;
+ pdata->xcvr_type = xops->xcvr_type;
+ pdata->pdev = pdev;
+ xops->pdata = pdata;
+
+ /* enable USB read, write and slave bursts */
+ MCF_SCM_BCR = MCF_SCM_BCR_GBR | MCF_SCM_BCR_GBW | MCF_SCM_BCR_SBE_ALL;
+
+ if (!dr_used) {
+ fsl_usb_enable_clk();
+
+ if (xops->init)
+ xops->init(xops);
+ }
+
+ dr_used++;
+ pr_debug("%s: success\n", __func__);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usb_platform_dr_init);
+
+void usb_platform_dr_uninit(struct platform_device *pdev)
+{
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+
+ pr_debug("%s\n", __func__);
+
+ dr_used--;
+ if (!dr_used) {
+ if (pdata->xcvr_ops && pdata->xcvr_ops->uninit)
+ pdata->xcvr_ops->uninit(pdata->xcvr_ops);
+
+ pdata->regs = NULL;
+ fsl_usb_disable_clk();
+ }
+}
+EXPORT_SYMBOL_GPL(usb_platform_dr_uninit);
--- /dev/null
+++ b/arch/m68k/coldfire/m5445x/usb.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+extern int usb_platform_dr_init(struct platform_device *pdev);
+extern void usb_platform_dr_uninit(struct fsl_usb2_platform_data *pdata);
+extern struct platform_device *host_pdev_register(struct resource *res,
+ int n_res, struct fsl_usb2_platform_data *config);
+
+
+/*
+ * Determine which platform_data struct to use, based on which
+ * transceiver is configured.
+ * PDATA is a pointer to it.
+ */
+#ifdef CONFIG_USB_M5445X_ULPI
+static struct fsl_usb2_platform_data dr_config_ulpi;
+#define PDATA (&dr_config_ulpi)
+#else
+static struct fsl_usb2_platform_data dr_config_fsls;
+#define PDATA (&dr_config_fsls)
+#endif
+
+/*
+ * Used to set pdata->operating_mode before registering the platform_device.
+ * If OTG is configured, the controller operates in OTG mode,
+ * otherwise it's either host or device.
+ */
+#ifdef CONFIG_USB_OTG
+#define DR_UDC_MODE FSL_USB2_DR_OTG
+#define DR_HOST_MODE FSL_USB2_DR_OTG
+#else
+#define DR_UDC_MODE FSL_USB2_DR_DEVICE
+#define DR_HOST_MODE FSL_USB2_DR_HOST
+#endif
+
+
+#if defined CONFIG_USB_EHCI_HCD || defined CONFIG_USB_EHCI_HCD_MODULE
+static inline void dr_register_host(struct resource *r, int rs)
+{
+ PDATA->operating_mode = DR_HOST_MODE;
+ host_pdev_register(r, rs, PDATA);
+}
+#else
+static inline void dr_register_host(struct resource *r, int rs)
+{
+}
+#endif
+
+#ifdef CONFIG_USB_GADGET_FSL_USB2
+static struct platform_device dr_udc_device;
+
+static inline void dr_register_udc(void)
+{
+ PDATA->operating_mode = DR_UDC_MODE;
+ dr_udc_device.dev.platform_data = PDATA;
+
+ if (platform_device_register(&dr_udc_device))
+ printk(KERN_ERR "usb: can't register DR gadget\n");
+ else
+ printk(KERN_INFO "usb: DR gadget (%s) registered\n",
+ PDATA->transceiver);
+}
+#else
+static inline void dr_register_udc(void)
+{
+}
+#endif
+
+#ifdef CONFIG_USB_OTG
+static struct platform_device dr_otg_device;
+
+/*
+ * set the proper operating_mode and
+ * platform_data pointer, then register the
+ * device.
+ */
+static inline void dr_register_otg(void)
+{
+ PDATA->operating_mode = FSL_USB2_DR_OTG;
+ dr_otg_device.dev.platform_data = PDATA;
+
+ if (platform_device_register(&dr_otg_device))
+ printk(KERN_ERR "usb: can't register otg device\n");
+ else
+ printk(KERN_INFO "usb: DR OTG registered\n");
+}
+#else
+static inline void dr_register_otg(void)
+{
+}
+#endif
--- /dev/null
+++ b/arch/m68k/coldfire/m5445x/usb_dr.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright 2004-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/fsl_devices.h>
+#include <asm/mcfsim.h>
+
+#define USB_OTGREGS_BASE MCF_REG32(0xFC0B0000)
+#define INT_USB (64 + 64 + 47) /* INTC1:47 16.2.9.1 */
+#define INT_UOCSR (64 + 64 + 53) /* INTC1:53 16.2.9.1 */
+
+#include "usb.h"
+
+/*
+ * platform data structs
+ * - Which one to use is determined by CONFIG options in usb.h
+ * - operating_mode plugged at run time
+ */
+
+/* off-chip ULPI transceiver */
+static struct fsl_usb2_platform_data __maybe_unused dr_config_ulpi = {
+ .name = "DR",
+ .init = usb_platform_dr_init,
+ .exit = usb_platform_dr_uninit,
+ .phy_mode = FSL_USB2_PHY_ULPI,
+ .transceiver = "dr-ulpi",
+ .power_budget = 500,
+ .es = 1,
+ .big_endian_mmio = 1,
+ .big_endian_desc = 1,
+ .le_setup_buf = 1,
+};
+
+/* on-chip FS/LS serial transceiver */
+static struct fsl_usb2_platform_data __maybe_unused dr_config_fsls = {
+ .name = "DR",
+ .init = usb_platform_dr_init,
+ .exit = usb_platform_dr_uninit,
+ .phy_mode = FSL_USB2_PHY_SERIAL,
+ .transceiver = "dr-fsls",
+ .power_budget = 500,
+ .es = 1,
+ .big_endian_mmio = 1,
+ .big_endian_desc = 1,
+ .le_setup_buf = 1,
+};
+
+/*
+ * resources
+ */
+static struct resource dr_host_resources[] = {
+ [0] = {
+ .start = (u32)(&USB_OTGREGS_BASE),
+ .end = (u32)(&USB_OTGREGS_BASE + 0x1ff),
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = INT_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource dr_otg_resources[] = {
+ [0] = {
+ .start = (u32)(&USB_OTGREGS_BASE),
+ .end = (u32)(&USB_OTGREGS_BASE + 0x1ff),
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = INT_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource dr_udc_resources[] = {
+ [0] = {
+ .start = (u32)(&USB_OTGREGS_BASE),
+ .end = (u32)(&USB_OTGREGS_BASE + 0x1ff),
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = INT_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+static u64 dr_udc_dmamask = ~(u32) 0;
+static void dr_udc_release(struct device *dev)
+{
+}
+
+static u64 dr_otg_dmamask = ~(u32) 0;
+static void dr_otg_release(struct device *dev)
+{
+}
+
+/*
+ * platform device structs
+ * dev.platform_data field plugged at run time
+ */
+static struct platform_device __maybe_unused dr_udc_device = {
+ .name = "fsl-usb2-udc",
+ .id = -1,
+ .dev = {
+ .release = dr_udc_release,
+ .dma_mask = &dr_udc_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = dr_udc_resources,
+ .num_resources = ARRAY_SIZE(dr_udc_resources),
+};
+
+static struct platform_device __maybe_unused dr_otg_device = {
+ .name = "fsl-usb2-otg",
+ .id = -1,
+ .dev = {
+ .release = dr_otg_release,
+ .dma_mask = &dr_otg_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = dr_otg_resources,
+ .num_resources = ARRAY_SIZE(dr_otg_resources),
+};
+
+static int __init usb_dr_init(void)
+{
+ pr_debug("%s:\n", __func__);
+
+ dr_register_otg();
+ dr_register_host(dr_host_resources, ARRAY_SIZE(dr_host_resources));
+ dr_register_udc();
+
+ return 0;
+}
+
+module_init(usb_dr_init);
--- /dev/null
+++ b/arch/m68k/coldfire/m5445x/xcvr.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/usb/fsl_xcvr.h>
+#include <asm/mcfsim.h>
+
+/* Use the configured xcvr_ops */
+#ifdef CONFIG_USB_M5445X_ULPI
+#define XCVR_OPS (&xcvr_ops_ulpi)
+#elif defined CONFIG_USB_M5445X_FSLS
+#define XCVR_OPS (&xcvr_ops_fsls)
+#else
+#error "Invalid USB transceiver selection."
+#endif
+
+/*
+ * Init routine for on-chip FSLS xcvr
+ */
+static void xcvr_fsls_init(struct fsl_xcvr_ops *this)
+{
+ pr_debug("%s: name=%s\n", __func__, this->name);
+
+ /* Enable VBUS_EN and VBUS_OC signals */
+ MCF_GPIO_PAR_USB = MCF_GPIO_PAR_USB_VBUSEN_VBUSEN |
+ MCF_GPIO_PAR_USB_VBUSOC_VBUSOC;
+
+ /* Setup USB_VBUS_OC signal to be active-low */
+ MCF_CCM_MISCCR |= MCF_CCM_MISCCR_USBOC;
+}
+
+/*
+ * Init routine for off-chip ULPI xcvr
+ */
+static void xcvr_ulpi_init(struct fsl_xcvr_ops *this)
+{
+ pr_debug("%s: name=%s\n", __func__, this->name);
+
+ /* Enable the required ULPI signals */
+ MCF_GPIO_PAR_DMA = (MCF_GPIO_PAR_DMA &
+ MCF_GPIO_PAR_DMA_DACK1_MASK) |
+ MCF_GPIO_PAR_DMA_DACK1_ULPI_DIR;
+
+ MCF_GPIO_PAR_USB = MCF_GPIO_PAR_USB_VBUSEN_ULPI_NXT |
+ MCF_GPIO_PAR_USB_VBUSOC_ULPI_STP;
+
+ MCF_GPIO_PAR_FEC = (MCF_GPIO_PAR_FEC &
+ MCF_GPIO_PAR_FEC_FEC0_MASK) |
+ MCF_GPIO_PAR_FEC_FEC0_RMII_ULPI;
+}
+
+static void xcvr_uninit(struct fsl_xcvr_ops *this)
+{
+ pr_debug("%s\n", __func__);
+}
+
+static void xcvr_pullup(int on)
+{
+ unsigned short ccm = in_be16(&MCF_CCM_UOCSR);
+
+ pr_debug("%s(%d)\n", __func__, on);
+
+ ccm = in_be16(&MCF_CCM_UOCSR);
+ if (on) {
+ ccm |= MCF_CCM_UOCSR_BVLD;
+ ccm &= ~MCF_CCM_UOCSR_SEND;
+ out_be16(&MCF_CCM_UOCSR, ccm);
+ } else {
+ ccm &= ~MCF_CCM_UOCSR_BVLD;
+ out_be16(&MCF_CCM_UOCSR, ccm);
+ }
+}
+
+struct fsl_xcvr_ops xcvr_ops_ulpi = {
+ .init = xcvr_ulpi_init,
+ .uninit = xcvr_uninit,
+ .pullup = xcvr_pullup,
+ .name = "dr-ulpi",
+};
+
+struct fsl_xcvr_ops xcvr_ops_fsls = {
+ .init = xcvr_fsls_init,
+ .uninit = xcvr_uninit,
+ .pullup = xcvr_pullup,
+ .name = "dr-fsls",
+};
+
+static int __init usb_xcvr_init(void)
+{
+ struct fsl_xcvr_ops *xops = XCVR_OPS;
+
+ pr_debug("%s %s\n", __func__, xops->name);
+ fsl_usb_xcvr_register(xops);
+
+ return 0;
+}
+
+static void __exit usb_xcvr_exit(void)
+{
+ fsl_usb_xcvr_unregister(XCVR_OPS);
+}
+
+module_init(usb_xcvr_init);
+module_exit(usb_xcvr_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("External ULPI xcvr driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/arch/m68k/include/asm/fsl_usb_gadget.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ * USB Gadget side, platform-specific functionality.
+ */
+
+#include <linux/usb/fsl_xcvr.h>
+
+/* Needed for i2c/serial transceivers */
+static inline void
+fsl_platform_set_device_mode(struct fsl_usb2_platform_data *pdata)
+{
+ if (pdata->xcvr_ops && pdata->xcvr_ops->set_device)
+ pdata->xcvr_ops->set_device();
+}
+
+static inline void
+fsl_platform_pullup_enable(struct fsl_usb2_platform_data *pdata)
+{
+ if (pdata->xcvr_ops && pdata->xcvr_ops->pullup)
+ pdata->xcvr_ops->pullup(1);
+}
+
+static inline void
+fsl_platform_pullup_disable(struct fsl_usb2_platform_data *pdata)
+{
+ if (pdata->xcvr_ops && pdata->xcvr_ops->pullup)
+ pdata->xcvr_ops->pullup(0);
+}
--- /dev/null
+++ b/arch/m68k/include/asm/fsl_usb_io.h
@@ -0,0 +1,43 @@
+/* Copyright 2008-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#ifndef _FSL_USB_IO_H
+#define _FSL_USB_IO_H
+
+#undef inb_p
+#undef outb_p
+#undef inl_p
+#undef outl_p
+#define inb_p in_8
+#define outb_p(b, addr) (void)((*(__force volatile u8 *) (addr)) = (b))
+#define inl_p in_be32
+#define outl_p(l, addr) (void)((*(__force volatile u32 *) (addr)) = (l))
+
+#define fsl_readl(addr) in_be32((__force unsigned *)(addr))
+#define fsl_writel(val32, addr) out_be32((__force unsigned *)(addr), (val32))
+
+static inline void fsl_set_usb_accessors(struct fsl_usb2_platform_data *pdata)
+{
+}
+/*
+#ifndef cpu_to_hc32
+#define cpu_to_hc32(x) (x)
+#endif
+#ifndef hc32_to_cpu
+#define hc32_to_cpu(x) (x)
+#endif
+*/
+#endif /* _FSL_USB_IO_H */
--- /dev/null
+++ b/arch/m68k/include/asm/fsl_usb_platform.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef FSL_USB_PLATFORM_H
+#define FSL_USB_PLATFORM_H
+
+#include <linux/usb/fsl_xcvr.h>
+#include <linux/usb/fsl_usb2.h>
+#include <asm/mcfsim.h>
+
+extern struct resource *otg_get_resources(void);
+
+extern struct fsl_usb2_platform_data;
+
+/* ehci_arc_hc_driver.flags value */
+#define FSL_PLATFORM_HC_FLAGS (HCD_USB2 | HCD_MEMORY)
+
+static void ehci_fsl_setup_phy(struct ehci_hcd *ehci,
+ enum fsl_usb2_phy_modes phy_mode,
+ unsigned int port_offset);
+
+static inline void fsl_platform_usb_setup(struct ehci_hcd *ehci)
+{
+ struct fsl_usb2_platform_data *pdata;
+
+ pdata = ehci_to_hcd(ehci)->self.controller->platform_data;
+ ehci_fsl_setup_phy(ehci, pdata->phy_mode, 0);
+}
+
+static inline void fsl_platform_set_host_mode(struct usb_hcd *hcd)
+{
+ unsigned int temp;
+ struct fsl_usb2_platform_data *pdata;
+ struct fsl_usb_host_regs *regs;
+
+ pdata = hcd->self.controller->platform_data;
+ regs = pdata->regs;
+
+ if (pdata->xcvr_ops && pdata->xcvr_ops->set_host)
+ pdata->xcvr_ops->set_host();
+
+ /* set host mode and select "big endian" */
+ temp = in_be32(&regs->usbmode);
+ temp |= USBMODE_CM_HOST | (pdata->es ? USBMODE_ES : 0);
+ out_be32(&regs->usbmode, temp);
+
+ pr_debug("%s: set usbmode to 0x%x\n\n", __func__,
+ in_be32(&regs->usbmode));
+
+}
+
+static inline void
+fsl_platform_set_vbus_power(struct fsl_usb2_platform_data *pdata, int on)
+{
+#ifdef CONFIG_USB_M5441X_FSLS
+ MCF_GPIO_PAR_CS &= 0x0F; /*Enable GPIOB5, GPIOB6*/
+
+ MCF_GPIO_PDDR_B &= 0xDF; /*GPIOB5, input*/
+ MCF_GPIO_PDDR_B |= 0x40; /*GPIOB6, output*/
+
+ if (on)
+ MCF_GPIO_PODR_B |= 0x40; /*GPIOB6, output 1*/
+ else
+ MCF_GPIO_PODR_B &= 0xBF; /*GPIOB6, output 0*/
+#endif
+}
+
+#endif
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -66,6 +66,7 @@ obj-$(CONFIG_PARIDE) += block/paride/
obj-$(CONFIG_TC) += tc/
obj-$(CONFIG_UWB) += uwb/
obj-$(CONFIG_USB_OTG_UTILS) += usb/otg/
+obj-$(CONFIG_USB_OTG) += usb/otg/
obj-$(CONFIG_USB) += usb/
obj-$(CONFIG_USB_MUSB_HDRC) += usb/musb/
obj-$(CONFIG_PCI) += usb/
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -57,6 +57,8 @@ config USB_ARCH_HAS_EHCI
boolean
default y if PPC_83xx
default y if PPC_MPC512x
+ default y if M5445X
+ default y if M5441X
default y if SOC_AU1200
default y if ARCH_IXP4XX
default y if ARCH_W90X900
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -109,7 +109,7 @@ config USB_SUSPEND
config USB_OTG
bool "OTG support"
depends on USB && EXPERIMENTAL
- depends on USB_SUSPEND
+# depends on USB_SUSPEND
default n
help
The most notable feature of USB OTG is support for a
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -156,7 +156,7 @@ config USB_ATMEL_USBA
config USB_GADGET_FSL_USB2
boolean "Freescale Highspeed USB DR Peripheral Controller"
- depends on FSL_SOC || ARCH_MXC
+ depends on FSL_SOC || ARCH_MXC || HAVE_FSL_USB_DR
select USB_GADGET_DUALSPEED
select USB_FSL_MPH_DR_OF if OF
help
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2004-2007 Freescale Semicondutor, Inc. All rights reserved.
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. All rights reserved.
*
* Author: Li Yang <leoli@freescale.com>
* Jiang Bo <tanya.jiang@freescale.com>
@@ -52,6 +52,12 @@
#define DRIVER_AUTHOR "Li Yang/Jiang Bo"
#define DRIVER_VERSION "Apr 20, 2007"
+
+#define USB_MODE_CTRL_MODE_MASK 0x00000003
+#define USB_MODE_ES 0x00000004 /* (big) Endian */
+#define cpu_to_hc32(x) (x)
+#define hc32_to_cpu(x) (x)
+
#define DMA_ADDR_INVALID (~(dma_addr_t)0)
static const char driver_name[] = "fsl-usb2-udc";
@@ -62,6 +68,9 @@ static struct usb_dr_device *dr_regs;
static struct usb_sys_interface *usb_sys_regs;
#endif
+static int fsl_udc_suspend(struct device *dev, pm_message_t state);
+static int fsl_udc_resume(struct device *dev);
+
/* it is initialized in probe() */
static struct fsl_udc *udc_controller = NULL;
@@ -76,6 +85,7 @@ fsl_ep0_desc = {
static void fsl_ep_fifo_flush(struct usb_ep *_ep);
+#ifndef CONFIG_COLDFIRE
#ifdef CONFIG_PPC32
#define fsl_readl(addr) in_le32(addr)
#define fsl_writel(val32, addr) out_le32(addr, val32)
@@ -83,7 +93,7 @@ static void fsl_ep_fifo_flush(struct usb
#define fsl_readl(addr) readl(addr)
#define fsl_writel(val32, addr) writel(val32, addr)
#endif
-
+#endif
/********************************************************************
* Internal Used Function
********************************************************************/
@@ -184,6 +194,12 @@ static int dr_controller_setup(struct fs
unsigned long timeout;
#define FSL_UDC_RESET_TIMEOUT 1000
+#ifdef CONFIG_COLDFIRE
+ struct fsl_usb2_platform_data *pdata;
+ if (!udc)
+ return -EINVAL;
+ pdata = udc->pdata;
+#endif
/* Config PHY interface */
portctrl = fsl_readl(&dr_regs->portsc1);
portctrl &= ~(PORTSCX_PHY_TYPE_SEL | PORTSCX_PORT_WIDTH);
@@ -226,11 +242,20 @@ static int dr_controller_setup(struct fs
/* Set the controller as device mode */
tmp = fsl_readl(&dr_regs->usbmode);
+#ifdef CONFIG_COLDFIRE
+ tmp &= ~USB_MODE_CTRL_MODE_MASK; /* clear mode bits */
+#endif
tmp |= USB_MODE_CTRL_MODE_DEVICE;
/* Disable Setup Lockout */
tmp |= USB_MODE_SETUP_LOCK_OFF;
+#ifdef CONFIG_COLDFIRE
+ if (pdata->es)
+ tmp |= USB_MODE_ES;
+#endif
fsl_writel(tmp, &dr_regs->usbmode);
-
+#ifdef CONFIG_COLDFIRE
+ fsl_platform_set_device_mode(pdata);
+#endif
/* Clear the setup status */
fsl_writel(0, &dr_regs->usbsts);
@@ -243,7 +268,7 @@ static int dr_controller_setup(struct fs
fsl_readl(&dr_regs->endpointlistaddr));
/* Config control enable i/o output, cpu endian register */
-#ifndef CONFIG_ARCH_MXC
+#if !defined(CONFIG_ARCH_MXC) && !defined(CONFIG_COLDFIRE)
ctrl = __raw_readl(&usb_sys_regs->control);
ctrl |= USB_CTRL_IOENB;
__raw_writel(ctrl, &usb_sys_regs->control);
@@ -267,7 +292,9 @@ static int dr_controller_setup(struct fs
static void dr_controller_run(struct fsl_udc *udc)
{
u32 temp;
-
+#ifdef CONFIG_COLDFIRE
+ fsl_platform_pullup_enable(udc->pdata);
+#endif
/* Enable DR irq reg */
temp = USB_INTR_INT_EN | USB_INTR_ERR_INT_EN
| USB_INTR_PTC_DETECT_EN | USB_INTR_RESET_EN
@@ -277,12 +304,12 @@ static void dr_controller_run(struct fsl
/* Clear stopped bit */
udc->stopped = 0;
-
+#ifndef CONFIG_COLDFIRE
/* Set the controller as device mode */
temp = fsl_readl(&dr_regs->usbmode);
temp |= USB_MODE_CTRL_MODE_DEVICE;
fsl_writel(temp, &dr_regs->usbmode);
-
+#endif
/* Set controller to Run */
temp = fsl_readl(&dr_regs->usbcmd);
temp |= USB_CMD_RUN_STOP;
@@ -292,7 +319,18 @@ static void dr_controller_run(struct fsl
static void dr_controller_stop(struct fsl_udc *udc)
{
unsigned int tmp;
-
+#ifdef CONFIG_COLDFIRE
+ if (udc->gadget.is_otg) {
+#ifdef CONFIG_USB_M5441X_MAX3353_FSLS
+ if (max3353_read_id_pin()) {
+#else
+ if (!(fsl_readl(&dr_regs->otgsc) & OTGSC_STS_USB_ID)) {
+#endif
+ pr_debug("udc: Leaving early\n");
+ return;
+ }
+ }
+#endif
/* disable all INTR */
fsl_writel(0, &dr_regs->usbintr);
@@ -301,7 +339,9 @@ static void dr_controller_stop(struct fs
/* disable IO output */
/* usb_sys_regs->control = 0; */
-
+#ifdef CONFIG_COLDFIRE
+ fsl_platform_pullup_disable(udc->pdata);
+#endif
/* set controller to Stop */
tmp = fsl_readl(&dr_regs->usbcmd);
tmp &= ~USB_CMD_RUN_STOP;
@@ -408,10 +448,13 @@ static void struct_ep_qh_setup(struct fs
}
if (zlt)
tmp |= EP_QUEUE_HEAD_ZLT_SEL;
-
+#ifdef CONFIG_COLDFIRE
+ p_QH->max_pkt_length = cpu_to_hc32(tmp);
+#else
p_QH->max_pkt_length = cpu_to_le32(tmp);
p_QH->next_dtd_ptr = 1;
p_QH->size_ioc_int_sts = 0;
+#endif
}
/* Setup qh structure and ep register for ep0. */
@@ -616,7 +659,11 @@ static void fsl_queue_td(struct fsl_ep *
struct fsl_req *lastreq;
lastreq = list_entry(ep->queue.prev, struct fsl_req, queue);
lastreq->tail->next_td_ptr =
+#ifdef CONFIG_COLDFIRE
+ cpu_to_hc32(req->head->td_dma & DTD_ADDR_MASK);
+#else
cpu_to_le32(req->head->td_dma & DTD_ADDR_MASK);
+#endif
/* Read prime bit, if 1 goto done */
if (fsl_readl(&dr_regs->endpointprime) & bitmask)
goto out;
@@ -641,11 +688,19 @@ static void fsl_queue_td(struct fsl_ep *
/* Write dQH next pointer and terminate bit to 0 */
temp = req->head->td_dma & EP_QUEUE_HEAD_NEXT_POINTER_MASK;
+#ifdef CONFIG_COLDFIRE
+ dQH->next_dtd_ptr = cpu_to_hc32(temp);
+#else
dQH->next_dtd_ptr = cpu_to_le32(temp);
-
+#endif
/* Clear active and halt bit */
+#ifdef CONFIG_COLDFIRE
+ temp = cpu_to_hc32(~(EP_QUEUE_HEAD_STATUS_ACTIVE
+ | EP_QUEUE_HEAD_STATUS_HALT));
+#else
temp = cpu_to_le32(~(EP_QUEUE_HEAD_STATUS_ACTIVE
| EP_QUEUE_HEAD_STATUS_HALT));
+#endif
dQH->size_ioc_int_sts &= temp;
/* Ensure that updates to the QH will occure before priming. */
@@ -682,18 +737,32 @@ static struct ep_td_struct *fsl_build_dt
dtd->td_dma = *dma;
/* Clear reserved field */
+#ifdef CONFIG_COLDFIRE
+ swap_temp = hc32_to_cpu(dtd->size_ioc_sts);
+#else
swap_temp = cpu_to_le32(dtd->size_ioc_sts);
+#endif
swap_temp &= ~DTD_RESERVED_FIELDS;
+#ifdef CONFIG_COLDFIRE
+ dtd->size_ioc_sts = cpu_to_hc32(swap_temp);
+#else
dtd->size_ioc_sts = cpu_to_le32(swap_temp);
-
+#endif
/* Init all of buffer page pointers */
swap_temp = (u32) (req->req.dma + req->req.actual);
+#ifdef CONFIG_COLDFIRE
+ dtd->buff_ptr0 = cpu_to_hc32(swap_temp);
+ dtd->buff_ptr1 = cpu_to_hc32(swap_temp + 0x1000);
+ dtd->buff_ptr2 = cpu_to_hc32(swap_temp + 0x2000);
+ dtd->buff_ptr3 = cpu_to_hc32(swap_temp + 0x3000);
+ dtd->buff_ptr4 = cpu_to_hc32(swap_temp + 0x4000);
+#else
dtd->buff_ptr0 = cpu_to_le32(swap_temp);
dtd->buff_ptr1 = cpu_to_le32(swap_temp + 0x1000);
dtd->buff_ptr2 = cpu_to_le32(swap_temp + 0x2000);
dtd->buff_ptr3 = cpu_to_le32(swap_temp + 0x3000);
dtd->buff_ptr4 = cpu_to_le32(swap_temp + 0x4000);
-
+#endif
req->req.actual += *length;
/* zlp is needed if req->req.zero is set */
@@ -715,9 +784,11 @@ static struct ep_td_struct *fsl_build_dt
/* Enable interrupt for the last dtd of a request */
if (*is_last && !req->req.no_interrupt)
swap_temp |= DTD_IOC;
-
+#ifdef CONFIG_COLDFIRE
+ dtd->size_ioc_sts = cpu_to_hc32(swap_temp);
+#else
dtd->size_ioc_sts = cpu_to_le32(swap_temp);
-
+#endif
mb();
VDBG("length = %d address= 0x%x", *length, (int)*dma);
@@ -743,16 +814,22 @@ static int fsl_req_to_dtd(struct fsl_req
is_first = 0;
req->head = dtd;
} else {
+#ifdef CONFIG_COLDFIRE
+ last_dtd->next_td_ptr = cpu_to_hc32(dma);
+#else
last_dtd->next_td_ptr = cpu_to_le32(dma);
+#endif
last_dtd->next_td_virt = dtd;
}
last_dtd = dtd;
req->dtd_count++;
} while (!is_last);
-
+#ifdef CONFIG_COLDFIRE
+ dtd->next_td_ptr = cpu_to_hc32(DTD_NEXT_TERMINATE);
+#else
dtd->next_td_ptr = cpu_to_le32(DTD_NEXT_TERMINATE);
-
+#endif
req->tail = dtd;
return 0;
@@ -963,7 +1040,39 @@ out:
return status;
}
+#ifdef CONFIG_COLDFIRE
+static int arcotg_fifo_status(struct usb_ep *_ep)
+{
+ struct fsl_ep *ep;
+ struct fsl_udc *udc;
+ int size = 0;
+ u32 bitmask;
+ struct ep_queue_head *d_qh;
+
+ ep = container_of(_ep, struct fsl_ep, ep);
+ if (!_ep || (!ep->desc && ep_index(ep) != 0))
+ return -ENODEV;
+
+ udc = (struct fsl_udc *)ep->udc;
+
+ if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN)
+ return -ESHUTDOWN;
+
+ d_qh = &ep->udc->ep_qh[ep_index(ep) * 2 + ep_is_in(ep)];
+
+ bitmask = (ep_is_in(ep)) ? (1 << (ep_index(ep) + 16)) :
+ (1 << (ep_index(ep)));
+
+ if (fsl_readl(&dr_regs->endptstatus) & bitmask)
+ size = (d_qh->size_ioc_int_sts & DTD_PACKET_SIZE)
+ >> DTD_LENGTH_BIT_POS;
+
+ pr_debug("%s %u\n", __func__, size);
+ return size;
+}
+
+#endif
static void fsl_ep_fifo_flush(struct usb_ep *_ep)
{
struct fsl_ep *ep;
@@ -1016,6 +1125,9 @@ static struct usb_ep_ops fsl_ep_ops = {
.dequeue = fsl_ep_dequeue,
.set_halt = fsl_ep_set_halt,
+#ifdef CONFIG_COLDFIRE
+ .fifo_status = arcotg_fifo_status,
+#endif
.fifo_flush = fsl_ep_fifo_flush, /* flush fifo */
};
@@ -1396,7 +1508,9 @@ static void tripwire_handler(struct fsl_
{
u32 temp;
struct ep_queue_head *qh;
-
+#ifdef CONFIG_COLDFIRE
+ struct fsl_usb2_platform_data *pdata = udc->pdata;
+#endif
qh = &udc->ep_qh[ep_num * 2 + EP_DIR_OUT];
/* Clear bit in ENDPTSETUPSTAT */
@@ -1410,7 +1524,20 @@ static void tripwire_handler(struct fsl_
fsl_writel(temp | USB_CMD_SUTW, &dr_regs->usbcmd);
/* Copy the setup packet to local buffer */
+#if CONFIG_COLDFIRE
+ if (pdata->le_setup_buf) {
+ u32 *p = (u32 *)buffer_ptr;
+ u32 *s = (u32 *)qh->setup_buffer;
+
+ /* Convert little endian setup buffer to CPU endian */
+ *p++ = le32_to_cpu(*s++);
+ *p = le32_to_cpu(*s);
+ } else {
+ memcpy(buffer_ptr, (u8 *) qh->setup_buffer, 8);
+ }
+#else
memcpy(buffer_ptr, (u8 *) qh->setup_buffer, 8);
+#endif
} while (!(fsl_readl(&dr_regs->usbcmd) & USB_CMD_SUTW));
/* Clear Setup Tripwire */
@@ -1434,19 +1561,19 @@ static int process_ep_req(struct fsl_udc
actual = curr_req->req.length;
for (j = 0; j < curr_req->dtd_count; j++) {
- remaining_length = (le32_to_cpu(curr_td->size_ioc_sts)
+ remaining_length = (hc32_to_cpu(curr_td->size_ioc_sts)
& DTD_PACKET_SIZE)
>> DTD_LENGTH_BIT_POS;
actual -= remaining_length;
- if ((errors = le32_to_cpu(curr_td->size_ioc_sts) &
- DTD_ERROR_MASK)) {
+ errors = hc32_to_cpu(curr_td->size_ioc_sts);
+ if (errors & DTD_ERROR_MASK) {
if (errors & DTD_STATUS_HALTED) {
ERR("dTD error %08x QH=%d\n", errors, pipe);
/* Clear the errors and Halt condition */
- tmp = le32_to_cpu(curr_qh->size_ioc_int_sts);
+ tmp = hc32_to_cpu(curr_qh->size_ioc_int_sts);
tmp &= ~errors;
- curr_qh->size_ioc_int_sts = cpu_to_le32(tmp);
+ curr_qh->size_ioc_int_sts = cpu_to_hc32(tmp);
status = -EPIPE;
/* FIXME: continue with next queued TD? */
@@ -1464,7 +1591,7 @@ static int process_ep_req(struct fsl_udc
ERR("Unknown error has occured (0x%x)!\n",
errors);
- } else if (le32_to_cpu(curr_td->size_ioc_sts)
+ } else if (hc32_to_cpu(curr_td->size_ioc_sts)
& DTD_STATUS_ACTIVE) {
VDBG("Request not complete");
status = REQ_UNCOMPLETE;
@@ -1552,7 +1679,10 @@ static void dtd_complete_irq(struct fsl_
static void port_change_irq(struct fsl_udc *udc)
{
u32 speed;
-
+#ifdef CONFIG_COLDFIRE
+ if (udc->bus_reset)
+ udc->bus_reset = 0;
+#endif
/* Bus resetting is finished */
if (!(fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET)) {
/* Get the speed */
@@ -1660,6 +1790,10 @@ static void reset_irq(struct fsl_udc *ud
if (fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET) {
VDBG("Bus reset");
+#ifdef CONFIG_COLDFIRE
+ /* Bus is reseting */
+ udc->bus_reset = 1;
+#endif
/* Reset all the queues, include XD, dTD, EP queue
* head and TR Queue */
reset_queues(udc);
@@ -1793,19 +1927,49 @@ int usb_gadget_probe_driver(struct usb_g
udc_controller->driver = NULL;
goto out;
}
-
+#ifdef CONFIG_COLDFIRE
+ if (udc_controller->transceiver) {
+ /* Suspend the controller until OTG enable it */
+ udc_controller->stopped = 1;
+ printk(KERN_INFO "Suspend udc for OTG auto detect\n");
+
+ /* export udc suspend/resume call to OTG */
+ udc_controller->gadget.dev.driver->suspend = fsl_udc_suspend;
+ udc_controller->gadget.dev.driver->resume = fsl_udc_resume;
+
+ /* connect to bus through transceiver */
+ if (udc_controller->transceiver) {
+ retval = otg_set_peripheral(udc_controller->transceiver,
+ &udc_controller->gadget);
+ if (retval < 0) {
+ ERR("can't bind to transceiver\n");
+ driver->unbind(&udc_controller->gadget);
+ udc_controller->gadget.dev.driver = 0;
+ udc_controller->driver = 0;
+ return retval;
+ }
+ }
+ } else {
+ /* Enable DR IRQ reg and Set usbcmd reg Run bit */
+ dr_controller_run(udc_controller);
+ udc_controller->usb_state = USB_STATE_ATTACHED;
+ udc_controller->ep0_state = WAIT_FOR_SETUP;
+ udc_controller->ep0_dir = 0;
+ }
+#else
/* Enable DR IRQ reg and Set usbcmd reg Run bit */
dr_controller_run(udc_controller);
udc_controller->usb_state = USB_STATE_ATTACHED;
udc_controller->ep0_state = WAIT_FOR_SETUP;
udc_controller->ep0_dir = 0;
+#endif
printk(KERN_INFO "%s: bind to driver %s\n",
udc_controller->gadget.name, driver->driver.name);
out:
if (retval)
printk(KERN_WARNING "gadget driver register failed %d\n",
- retval);
+ retval);
return retval;
}
EXPORT_SYMBOL(usb_gadget_probe_driver);
@@ -2239,7 +2403,7 @@ static int __init fsl_udc_probe(struct p
int ret = -ENODEV;
unsigned int i;
u32 dccparams;
-
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
if (strcmp(pdev->name, driver_name)) {
VDBG("Wrong device");
return -ENODEV;
@@ -2253,6 +2417,24 @@ static int __init fsl_udc_probe(struct p
spin_lock_init(&udc_controller->lock);
udc_controller->stopped = 1;
+#ifdef CONFIG_COLDFIRE
+ udc_controller->pdata = pdata;
+#endif
+#ifdef CONFIG_USB_OTG
+ /* Memory and interrupt resources will be passed from OTG */
+ udc_controller->transceiver = otg_get_transceiver();
+ if (!udc_controller->transceiver) {
+ printk(KERN_ERR "Can't find OTG driver!\n");
+ ret = -ENODEV;
+ goto err_kfree;
+ }
+
+ res = otg_get_resources();
+ if (!res) {
+ DBG("resource not registered!\n");
+ return -ENODEV;
+ }
+#else
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
@@ -2266,18 +2448,30 @@ static int __init fsl_udc_probe(struct p
ret = -EBUSY;
goto err_kfree;
}
-
+#endif
dr_regs = ioremap(res->start, resource_size(res));
if (!dr_regs) {
ret = -ENOMEM;
goto err_release_mem_region;
}
+#ifdef CONFIG_COLDFIRE
+ pdata->regs = (void *)dr_regs;
+ fsl_set_usb_accessors(pdata);
+
+ /*
+ * do platform specific init: check the clock, grab/config pins, etc.
+ */
+ if (pdata->init && pdata->init(pdev)) {
+ ret = -ENODEV;
+ goto err_iounmap_noclk;
+ }
+#else
#ifndef CONFIG_ARCH_MXC
usb_sys_regs = (struct usb_sys_interface *)
((u32)dr_regs + USB_DR_SYS_OFFSET);
#endif
-
+#endif
/* Initialize USB clocks */
ret = fsl_udc_clk_init(pdev);
if (ret < 0)
@@ -2293,8 +2487,12 @@ static int __init fsl_udc_probe(struct p
/* Get max device endpoints */
/* DEN is bidirectional ep number, max_ep doubles the number */
udc_controller->max_ep = (dccparams & DCCPARAMS_DEN_MASK) * 2;
-
+#ifdef CONFIG_USB_OTG
+ res++;
+ udc_controller->irq = res->start;
+#else
udc_controller->irq = platform_get_irq(pdev, 0);
+#endif
if (!udc_controller->irq) {
ret = -ENODEV;
goto err_iounmap;
@@ -2314,11 +2512,17 @@ static int __init fsl_udc_probe(struct p
ret = -ENOMEM;
goto err_free_irq;
}
-
+#ifdef CONFIG_COLDFIRE
+ if (!udc_controller->transceiver) {
+ /* initialize usb hw reg except for regs for EP,
+ * leave usbintr reg untouched */
+ dr_controller_setup(udc_controller);
+ }
+#else
/* initialize usb hw reg except for regs for EP,
* leave usbintr reg untouched */
dr_controller_setup(udc_controller);
-
+#endif
fsl_udc_clk_finalize(pdev);
/* Setup gadget structure */
@@ -2336,7 +2540,10 @@ static int __init fsl_udc_probe(struct p
ret = device_register(&udc_controller->gadget.dev);
if (ret < 0)
goto err_free_irq;
-
+#ifdef CONFIG_COLDFIRE
+ if (udc_controller->transceiver)
+ udc_controller->gadget.is_otg = 1;
+#endif
/* setup QH and epctrl for ep0 */
ep0_setup(udc_controller);
@@ -2392,7 +2599,9 @@ err_kfree:
static int __exit fsl_udc_remove(struct platform_device *pdev)
{
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
+#ifdef CONFIG_COLDFIRE
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+#endif
DECLARE_COMPLETION(done);
if (!udc_controller)
@@ -2412,31 +2621,103 @@ static int __exit fsl_udc_remove(struct
dma_pool_destroy(udc_controller->td_pool);
free_irq(udc_controller->irq, udc_controller);
iounmap(dr_regs);
+#ifndef CONFIG_USB_OTG
release_mem_region(res->start, res->end - res->start + 1);
-
+#endif
device_unregister(&udc_controller->gadget.dev);
/* free udc --wait for the release() finished */
wait_for_completion(&done);
+#ifdef CONFIG_COLDFIRE
+ /*
+ * do platform specific un-initialization:
+ * release iomux pins, etc.
+ */
+ if (pdata->exit)
+ pdata->exit(pdev);
+
+#endif
+ return 0;
+}
+#ifdef CONFIG_COLDFIRE
+
+static int udc_suspend(struct fsl_udc *udc)
+{
+ u32 mode, usbcmd;
+
+ mode = fsl_readl(&dr_regs->usbmode) & USB_MODE_CTRL_MODE_MASK;
+ usbcmd = fsl_readl(&dr_regs->usbcmd);
+
+ pr_debug("%s(): mode 0x%x stopped %d\n", __func__, mode, udc->stopped);
+
+ /*
+ * If the controller is already stopped, then this must be a
+ * PM suspend. Remember this fact, so that we will leave the
+ * controller stopped at PM resume time.
+ */
+ if (udc->stopped) {
+ pr_debug("gadget already stopped, leaving early\n");
+ udc->already_stopped = 1;
+ return 0;
+ }
+ if (mode != USB_MODE_CTRL_MODE_DEVICE) {
+ pr_debug("gadget not in device mode, leaving early\n");
+ return 0;
+ }
+
+ printk(KERN_INFO "USB Gadget suspended\n");
+
+ /* stop the controller */
+ usbcmd = fsl_readl(&dr_regs->usbcmd) & ~USB_CMD_RUN_STOP;
+ fsl_writel(usbcmd, &dr_regs->usbcmd);
+
+ udc->stopped = 1;
return 0;
}
+#endif
/*-----------------------------------------------------------------
* Modify Power management attributes
* Used by OTG statemachine to disable gadget temporarily
-----------------------------------------------------------------*/
+#ifdef CONFIG_COLDFIRE
+static int fsl_udc_suspend(struct device *dev, pm_message_t state)
+#else
static int fsl_udc_suspend(struct platform_device *pdev, pm_message_t state)
+#endif
{
+#ifdef CONFIG_COLDFIRE
+ return udc_suspend(udc_controller);
+#else
dr_controller_stop(udc_controller);
return 0;
+#endif
}
/*-----------------------------------------------------------------
* Invoked on USB resume. May be called in_interrupt.
* Here we start the DR controller and enable the irq
*-----------------------------------------------------------------*/
+#ifdef CONFIG_COLDFIRE
+static int fsl_udc_resume(struct device *dev)
+#else
static int fsl_udc_resume(struct platform_device *pdev)
+#endif
{
+#ifdef CONFIG_COLDFIRE
+ pr_debug("%s(): stopped %d already_stopped %d\n", __func__,
+ udc_controller->stopped, udc_controller->already_stopped);
+
+ /*
+ * If the controller was stopped at suspend time, then
+ * don't resume it now.
+ */
+ if (udc_controller->already_stopped) {
+ udc_controller->already_stopped = 0;
+ pr_debug("gadget was already stopped, leaving early\n");
+ return 0;
+ }
+#endif
/* Enable DR irq reg and set controller Run */
if (udc_controller->stopped) {
dr_controller_setup(udc_controller);
@@ -2445,6 +2726,9 @@ static int fsl_udc_resume(struct platfor
udc_controller->usb_state = USB_STATE_ATTACHED;
udc_controller->ep0_state = WAIT_FOR_SETUP;
udc_controller->ep0_dir = 0;
+
+ printk(KERN_INFO "USB Gadget resumed\n");
+
return 0;
}
@@ -2455,11 +2739,15 @@ static int fsl_udc_resume(struct platfor
static struct platform_driver udc_driver = {
.remove = __exit_p(fsl_udc_remove),
/* these suspend and resume are not usb suspend and resume */
+#ifndef CONFIG_COLDFIRE
.suspend = fsl_udc_suspend,
.resume = fsl_udc_resume,
+#endif
.driver = {
.name = (char *)driver_name,
.owner = THIS_MODULE,
+ .suspend = fsl_udc_suspend,
+ .resume = fsl_udc_resume,
},
};
--- a/drivers/usb/gadget/fsl_usb2_udc.h
+++ b/drivers/usb/gadget/fsl_usb2_udc.h
@@ -461,6 +461,7 @@ struct fsl_ep {
struct fsl_udc {
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
+ struct fsl_usb2_platform_data *pdata;
struct completion *done; /* to make sure release() is done */
struct fsl_ep *eps;
unsigned int max_ep;
@@ -473,6 +474,7 @@ struct fsl_udc {
unsigned vbus_active:1;
unsigned stopped:1;
unsigned remote_wakeup:1;
+ unsigned already_stopped:1;
struct ep_queue_head *ep_qh; /* Endpoints Queue-Head */
struct fsl_req *status_req; /* ep0 status request */
@@ -482,6 +484,7 @@ struct fsl_udc {
size_t ep_qh_size; /* size after alignment adjustment*/
dma_addr_t ep_qh_dma; /* dma address of QH */
+ u32 bus_reset; /* Device is bus reseting */
u32 max_pipes; /* Device max pipes */
u32 resume_state; /* USB state to resume */
u32 usb_state; /* USB current state */
@@ -581,4 +584,17 @@ static inline void fsl_udc_clk_release(v
}
#endif
+#ifdef CONFIG_COLDFIRE
+#include <asm/mcfsim.h>
+#include <asm/fsl_usb_io.h>
+#include <asm/fsl_usb_gadget.h>
+#include <asm/cf_cacheflush.h>
+
+extern struct resource *otg_get_resources(void);
+#ifdef CONFIG_USB_M5441X_MAX3353_FSLS
+extern int max3353_read_id_pin(void);
+#endif
+
+#endif
+
#endif
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -4,6 +4,7 @@
* Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
* Copyright (C) 2008 by David Brownell
* Copyright (C) 2008 by Nokia Corporation
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*
* This software is distributed under the terms of the GNU General
* Public License ("GPL") as published by the Free Software Foundation,
@@ -134,7 +135,44 @@ MODULE_PARM_DESC(use_obex, "Use CDC OBEX
static unsigned n_ports = 1;
module_param(n_ports, uint, 0);
MODULE_PARM_DESC(n_ports, "number of ports to create, default=1");
-
+/*-------------------------------------------------------------------------*/
+#if 0
+static void gs_setup_complete_set_line_coding(struct usb_ep *ep,
+ struct usb_request *req)
+{
+ struct gs_dev *dev = ep->driver_data;
+ struct gs_port *port = dev->dev_port[0]; /* ACM only has one port */
+
+ switch (req->status) {
+ case 0:
+ /* normal completion */
+ if (req->actual != sizeof(port->port_line_coding))
+ usb_ep_set_halt(ep);
+ else if (port) {
+ struct usb_cdc_line_coding *value = req->buf;
+
+ /* REVISIT: we currently just remember this data.
+ * If we change that, (a) validate it first, then
+ * (b) update whatever hardware needs updating.
+ */
+ spin_lock(&port->port_lock);
+ port->port_line_coding = *value;
+ spin_unlock(&port->port_lock);
+ }
+ break;
+
+ case -ESHUTDOWN:
+ /* disconnect */
+ gs_free_req(ep, req);
+ break;
+
+ default:
+ /* unexpected */
+ break;
+ }
+ return;
+}
+#endif
/*-------------------------------------------------------------------------*/
static int __init serial_bind_config(struct usb_configuration *c)
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -95,13 +95,14 @@ config USB_EHCI_BIG_ENDIAN_MMIO
bool
depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX || \
ARCH_IXP4XX || XPS_USB_HCD_XILINX || \
- PPC_MPC512x || CPU_CAVIUM_OCTEON)
+ PPC_MPC512x || CPU_CAVIUM_OCTEON || \
+ COLDFIRE)
default y
config USB_EHCI_BIG_ENDIAN_DESC
bool
depends on USB_EHCI_HCD && (440EPX || ARCH_IXP4XX || XPS_USB_HCD_XILINX || \
- PPC_MPC512x)
+ PPC_MPC512x || COLDFIRE)
default y
config XPS_USB_HCD_XILINX
@@ -120,12 +121,77 @@ config USB_FSL_MPH_DR_OF
config USB_EHCI_FSL
bool "Support for Freescale on-chip EHCI USB controller"
- depends on USB_EHCI_HCD && FSL_SOC
+ depends on USB_EHCI_HCD && (FSL_SOC || COLDFIRE)
select USB_EHCI_ROOT_HUB_TT
select USB_FSL_MPH_DR_OF if OF
---help---
Variation of ARC USB block used in some Freescale chips.
+config USB_M5441X_PLLCLK
+ bool "ColdFire USB module use PLL clock source"
+ depends on M5441X
+ ---help---
+ Select USB clock source from PLL instead external USBCLKIN,
+ to generate the exact USB module 60MHZ clock, the system clock
+ must be shrink to match the divide requirement which is down
+ in u-boot.
+
+config USB_M5441X_H1
+ bool "ColdFire EHCI USB Host module support"
+ depends on USB_EHCI_HCD && M5441X
+ ---help---
+ Some ColdFire platform have two USB controllers, one is HOST module,
+ the other is OTG module, this config select the HOST module support.
+
+choice
+ prompt "Selcet ColdFire HOST module transceiver"
+ depends on USB_M5441X_H1
+ default USB_M5441X_H1_FSLS
+
+config USB_M5441X_H1_FSLS
+ bool "on-chip (FS/LS only)"
+ depends on M5441X
+ ---help---
+ Enable support for the on-chip FS/LS transceiver.
+endchoice
+
+choice
+ prompt "Select ColdiFire OTG module transceiver"
+ depends on M5445X || M5441X
+ default USB_M5445X_ULPI if M5445X
+ default USB_M5441X_ULPI if M5441X
+
+config USB_M5445X_ULPI
+ bool "External ULPI"
+ depends on M5445X
+ ---help---
+ Enable support for the external HS ULPI transceiver.
+
+config USB_M5445X_FSLS
+ bool "On-chip (FL/LS only)"
+ depends on M54455EVB
+ ---help---
+ Enable support for the on-chip FL/LS transceiver.
+
+config USB_M5441X_ULPI
+ bool "External ULPI"
+ depends on M5441X
+ ---help---
+ Enable support for the external HS ULPI transceiver.
+
+config USB_M5441X_FSLS
+ bool "On-chip (FL/LS only)"
+ depends on M54418EVB
+ ---help---
+ Enable support for the on-chip FL/LS transceiver.
+
+config USB_M5441X_MAX3353_FSLS
+ bool "MAX3353 chip charge pump to on-chip (FS/LS only)"
+ depends on M54418EVB
+ ---help---
+ Max3353 provides charge pump for SER1 board on m54418 platform.
+endchoice
+
config USB_EHCI_MXC
bool "Support for Freescale on-chip EHCI USB controller"
depends on USB_EHCI_HCD && ARCH_MXC
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -22,16 +22,21 @@
* Jerry Huang <Chang-Ming.Huang@freescale.com> and
* Anton Vorontsov <avorontsov@ru.mvista.com>.
*/
-
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>
-
+#include <linux/usb/otg.h>
#include "ehci-fsl.h"
+#ifdef DEBUG
+#define DBG(X...) printk(X)
+#else
+#define DBG(X...)
+#endif
+
/* configure so an HC device and id are always provided */
/* always called with process context; sleeping is OK */
@@ -75,7 +80,27 @@ static int usb_hcd_fsl_probe(const struc
dev_name(&pdev->dev));
return -ENODEV;
}
-
+ hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
+ if (!hcd) {
+ retval = -ENOMEM;
+ goto err1;
+ }
+#ifdef CONFIG_USB_OTG
+ if (pdata->operating_mode == FSL_USB2_DR_OTG) {
+ res = otg_get_resources();
+ if (!res) {
+ dev_err(&pdev->dev,
+ "Found HC with no IRQ. Check %s setup!\n",
+ dev_name(&pdev->dev));
+ return -ENODEV;
+ goto err2;
+ }
+ irq = res[1].start;
+ hcd->rsrc_start = res[0].start;
+ hcd->rsrc_len = res[0].end - res[0].start + 1;
+ } else
+#endif
+ {
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_err(&pdev->dev,
@@ -85,12 +110,6 @@ static int usb_hcd_fsl_probe(const struc
}
irq = res->start;
- hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
- if (!hcd) {
- retval = -ENOMEM;
- goto err1;
- }
-
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev,
@@ -101,12 +120,15 @@ static int usb_hcd_fsl_probe(const struc
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = res->end - res->start + 1;
+#ifndef CONFIG_USB_OTG
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
dev_dbg(&pdev->dev, "controller already in use\n");
retval = -EBUSY;
goto err2;
}
+#endif
+ }
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (hcd->regs == NULL) {
@@ -124,22 +146,56 @@ static int usb_hcd_fsl_probe(const struc
retval = -ENODEV;
goto err3;
}
-
+#ifndef CONFIG_COLDFIRE
/* Enable USB controller, 83xx or 8536 */
if (pdata->have_sysif_regs)
setbits32(hcd->regs + FSL_SOC_USB_CTRL, 0x4);
-
+#endif
/* Don't need to set host mode here. It will be done by tdi_reset() */
-
+#ifdef CONFIG_COLDFIRE
+ fsl_platform_set_host_mode(hcd);
+ hcd->power_budget = pdata->power_budget;
+#endif
retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (retval != 0)
goto err4;
+#ifdef CONFIG_COLDFIRE
+ fsl_platform_set_vbus_power(pdata, 1);
+#endif
+#ifdef CONFIG_USB_OTG
+ if (pdata->operating_mode == FSL_USB2_DR_OTG) {
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+
+ DBG("pdev=0x%p hcd=0x%p ehci=0x%p\n", pdev, hcd, ehci);
+
+ ehci->transceiver = otg_get_transceiver();
+ DBG("ehci->transceiver=0x%p\n", ehci->transceiver);
+
+ if (ehci->transceiver) {
+ retval = otg_set_host(ehci->transceiver,
+ &ehci_to_hcd(ehci)->self);
+ if (retval) {
+ printk(KERN_INFO "otg transceiver set host failed\n");
+ if (ehci->transceiver)
+ put_device(ehci->transceiver->dev);
+ goto err4;
+ }
+ } else {
+ printk(KERN_ERR "can't find transceiver\n");
+ retval = -ENODEV;
+ goto err4;
+ }
+ }
+#endif
+
return retval;
err4:
iounmap(hcd->regs);
err3:
+#ifndef CONFIG_USB_OTG
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+#endif
err2:
usb_put_hcd(hcd);
err1:
@@ -164,9 +220,24 @@ static void usb_hcd_fsl_remove(struct us
struct platform_device *pdev)
{
struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+#ifdef CONFIG_COLDFIRE
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ /* DDD shouldn't we turn off the power here? */
+ fsl_platform_set_vbus_power(pdata, 0);
+
+ if (ehci->transceiver) {
+ (void)otg_set_host(ehci->transceiver, 0);
+ put_device(ehci->transceiver->dev);
+ } else {
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ }
+
+
+#endif
usb_remove_hcd(hcd);
+ usb_put_hcd(hcd);
/*
* do platform specific un-initialization:
* release iomux pins, disable clock, etc.
@@ -174,8 +245,6 @@ static void usb_hcd_fsl_remove(struct us
if (pdata->exit)
pdata->exit(pdev);
iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- usb_put_hcd(hcd);
}
static void ehci_fsl_setup_phy(struct ehci_hcd *ehci,
@@ -238,7 +307,7 @@ static void ehci_fsl_usb_setup(struct eh
if ((pdata->operating_mode == FSL_USB2_DR_HOST) ||
(pdata->operating_mode == FSL_USB2_DR_OTG))
ehci_fsl_setup_phy(ehci, pdata->phy_mode, 0);
-
+#ifndef CONFIG_COLDFIRE
if (pdata->operating_mode == FSL_USB2_MPH_HOST) {
unsigned int chip, rev, svr;
@@ -255,7 +324,7 @@ static void ehci_fsl_usb_setup(struct eh
if (pdata->port_enables & FSL_USB2_PORT1_ENABLED)
ehci_fsl_setup_phy(ehci, pdata->phy_mode, 1);
}
-
+#endif
if (pdata->have_sysif_regs) {
#ifdef CONFIG_PPC_85xx
out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x00000008);
@@ -271,7 +340,11 @@ static void ehci_fsl_usb_setup(struct eh
/* called after powerup, by probe or system-pm "wakeup" */
static int ehci_fsl_reinit(struct ehci_hcd *ehci)
{
+#ifdef CONFIG_COLDFIRE
+ fsl_platform_usb_setup(ehci);
+#else
ehci_fsl_usb_setup(ehci);
+#endif
ehci_port_power(ehci, 0);
return 0;
@@ -334,7 +407,6 @@ static struct ehci_fsl *hcd_to_ehci_fsl(
return container_of(ehci, struct ehci_fsl, ehci);
}
-
static int ehci_fsl_drv_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
@@ -371,7 +443,6 @@ static int ehci_fsl_drv_resume(struct de
return 0;
}
-
static int ehci_fsl_drv_restore(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
@@ -387,6 +458,144 @@ static struct dev_pm_ops ehci_fsl_pm_ops
};
#define EHCI_FSL_PM_OPS (&ehci_fsl_pm_ops)
+
+/* suspend/resume, section 4.3 */
+
+/* These routines rely on the bus (pci, platform, etc)
+ * to handle powerdown and wakeup, and currently also on
+ * transceivers that don't need any software attention to set up
+ * the right sort of wakeup.
+ *
+ * They're also used for turning on/off the port when doing OTG.
+ */
+static int ehci_fsl_suspend(struct device *dev,
+ pm_message_t message)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ u32 tmp;
+ struct fsl_usb2_platform_data *pdata = dev->platform_data;
+
+#ifdef DEBUG
+ u32 mode = ehci_readl(ehci, hcd->regs + FSL_SOC_USB_USBMODE);
+ mode &= USBMODE_CM_MASK;
+ tmp = ehci_readl(ehci, hcd->regs + 0x140); /* usbcmd */
+
+ DBG(KERN_DEBUG "%s('%s'): suspend=%d already_suspended=%d "
+ "mode=%d usbcmd %08x\n", __func__, pdata->name,
+ pdata->suspended, pdata->already_suspended, mode, tmp);
+#endif
+ /*
+ * If the controller is already suspended, then this must be a
+ * PM suspend. Remember this fact, so that we will leave the
+ * controller suspended at PM resume time.
+ */
+ if (pdata->suspended) {
+ pr_debug("%s: already suspended, leaving early\n", __func__);
+ pdata->already_suspended = 1;
+ return 0;
+ }
+
+ pr_debug("%s: suspending...\n", __func__);
+
+ DBG(KERN_INFO "USB Host suspended\n");
+
+ hcd->state = HC_STATE_SUSPENDED;
+ dev->power.power_state = PMSG_SUSPEND;
+
+ /* ignore non-host interrupts */
+ clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
+ /* stop the controller */
+ tmp = ehci_readl(ehci, &ehci->regs->command);
+ tmp &= ~CMD_RUN;
+ ehci_writel(ehci, tmp, &ehci->regs->command);
+
+ /* save EHCI registers */
+ pdata->pm_command = ehci_readl(ehci, &ehci->regs->command);
+ pdata->pm_command &= ~CMD_RUN;
+ pdata->pm_status = ehci_readl(ehci, &ehci->regs->status);
+ pdata->pm_intr_enable = ehci_readl(ehci, &ehci->regs->intr_enable);
+ pdata->pm_frame_index = ehci_readl(ehci, &ehci->regs->frame_index);
+ pdata->pm_segment = ehci_readl(ehci, &ehci->regs->segment);
+ pdata->pm_frame_list = ehci_readl(ehci, &ehci->regs->frame_list);
+ pdata->pm_async_next = ehci_readl(ehci, &ehci->regs->async_next);
+ pdata->pm_configured_flag =
+ ehci_readl(ehci, &ehci->regs->configured_flag);
+ pdata->pm_portsc = ehci_readl(ehci, &ehci->regs->port_status[0]);
+
+ /* clear the W1C bits */
+ pdata->pm_portsc &= cpu_to_hc32(ehci, ~PORT_RWC_BITS);
+
+ pdata->suspended = 1;
+#if 0
+ /* clear PP to cut power to the port */
+ tmp = ehci_readl(ehci, &ehci->regs->port_status[0]);
+ tmp &= ~PORT_POWER;
+ ehci_writel(ehci, tmp, &ehci->regs->port_status[0]);
+#endif
+ return 0;
+}
+
+static int ehci_fsl_resume(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ u32 tmp;
+ struct fsl_usb2_platform_data *pdata = dev->platform_data;
+
+ pr_debug("%s('%s'): suspend=%d already_suspended=%d\n", __func__,
+ pdata->name, pdata->suspended, pdata->already_suspended);
+
+ /*
+ * If the controller was already suspended at suspend time,
+ * then don't resume it now.
+ */
+ if (pdata->already_suspended) {
+ pr_debug("already suspended, leaving early\n");
+ pdata->already_suspended = 0;
+ return 0;
+ }
+
+ if (!pdata->suspended) {
+ pr_debug("not suspended, leaving early\n");
+ return 0;
+ }
+
+ DBG(KERN_INFO "USB Host resumed\n");
+
+ pdata->suspended = 0;
+
+ pr_debug("%s resuming...\n", __func__);
+
+ /* set host mode */
+ fsl_platform_set_host_mode(hcd);
+
+
+ /* restore EHCI registers */
+ ehci_writel(ehci, pdata->pm_command, &ehci->regs->command);
+ ehci_writel(ehci, pdata->pm_intr_enable, &ehci->regs->intr_enable);
+ ehci_writel(ehci, pdata->pm_frame_index, &ehci->regs->frame_index);
+ ehci_writel(ehci, pdata->pm_segment, &ehci->regs->segment);
+ ehci_writel(ehci, pdata->pm_frame_list, &ehci->regs->frame_list);
+ ehci_writel(ehci, pdata->pm_async_next, &ehci->regs->async_next);
+ ehci_writel(ehci, pdata->pm_configured_flag,
+ &ehci->regs->configured_flag);
+ ehci_writel(ehci, pdata->pm_portsc, &ehci->regs->port_status[0]);
+
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ hcd->state = HC_STATE_RUNNING;
+ dev->power.power_state = PMSG_ON;
+
+ tmp = ehci_readl(ehci, &ehci->regs->command);
+ tmp |= CMD_RUN;
+ ehci_writel(ehci, tmp, &ehci->regs->command);
+
+ usb_hcd_resume_root_hub(hcd);
+
+ return 0;
+}
+
#else
#define EHCI_FSL_PM_OPS NULL
#endif /* CONFIG_PM */
@@ -431,7 +640,11 @@ static const struct hc_driver ehci_fsl_h
.bus_suspend = ehci_bus_suspend,
.bus_resume = ehci_bus_resume,
.relinquish_port = ehci_relinquish_port,
+#ifndef CONFIG_COLDFIRE
.port_handed_over = ehci_port_handed_over,
+#else
+ .start_port_reset = ehci_start_port_reset,
+#endif
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
@@ -460,8 +673,16 @@ static struct platform_driver ehci_fsl_d
.probe = ehci_fsl_drv_probe,
.remove = ehci_fsl_drv_remove,
.shutdown = usb_hcd_platform_shutdown,
+#ifdef CONFIG_PM
+#ifndef CONFIG_COLDFIRE
+ .suspend = ehci_fsl_suspend,
+ .resume = ehci_fsl_resume,
+#endif
+#endif
.driver = {
.name = "fsl-ehci",
.pm = EHCI_FSL_PM_OPS,
+ .suspend = ehci_fsl_suspend,
+ .resume = ehci_fsl_resume,
},
};
--- a/drivers/usb/host/ehci-fsl.h
+++ b/drivers/usb/host/ehci-fsl.h
@@ -42,4 +42,11 @@
#define FSL_SOC_USB_SICTRL 0x410 /* NOTE: big-endian */
#define FSL_SOC_USB_CTRL 0x500 /* NOTE: big-endian */
#define SNOOP_SIZE_2GB 0x1e
+
+#ifdef CONFIG_COLDFIRE
+#define FSL_SOC_USB_USBMODE 0x1a8
+
+#include <asm/fsl_usb_platform.h>
+#include <asm/fsl_usb_io.h>
+#endif
#endif /* _EHCI_FSL_H */
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -1,5 +1,6 @@
/*
* Copyright (C) 2001-2004 by David Brownell
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -41,6 +42,39 @@ static int ehci_hub_control(
u16 wLength
);
+#ifdef CONFIG_COLDFIRE
+
+#ifdef CONFIG_USB_OTG
+static int ehci_start_port_reset(struct usb_hcd *hcd, unsigned port)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ u32 status;
+
+ if (!port)
+ return -EINVAL;
+ port--;
+
+ /* start port reset before HNP protocol time out */
+ status = readl(&ehci->regs->port_status[port]);
+ if (!(status & PORT_CONNECT))
+ return -ENODEV;
+
+ /* khubd will finish the reset later */
+ if (ehci_is_TDI(ehci))
+ writel(PORT_RESET | (status & ~(PORT_CSC | PORT_PEC
+ | PORT_OCC)), &ehci->regs->port_status[port]);
+ else
+ writel(PORT_RESET, &ehci->regs->port_status[port]);
+
+ return 0;
+}
+#else
+static int ehci_start_port_reset(struct usb_hcd *hcd, unsigned port)
+{
+ return 0;
+}
+#endif /* CONFIG_USB_OTG */
+#endif
/* After a power loss, ports that were owned by the companion must be
* reset so that the companion can still own them.
*/
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -1,6 +1,7 @@
/*
* Copyright (c) 2001-2002 by David Brownell
- *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
@@ -147,7 +148,9 @@ struct ehci_hcd { /* one per controlle
unsigned has_lpm:1; /* support link power management */
unsigned has_ppcd:1; /* support per-port change bits */
u8 sbrn; /* packed release number */
-
+#if defined(CONFIG_COLDFIRE)
+ struct otg_transceiver *transceiver;
+#endif
/* irq statistics */
#ifdef EHCI_STATS
struct ehci_stats stats;
@@ -617,6 +620,54 @@ ehci_port_speed(struct ehci_hcd *ehci, u
#define writel_be(val, addr) __raw_writel(val, (__force unsigned *)addr)
#endif
+#if defined(CONFIG_COLDFIRE)
+
+#if defined(CONFIG_MMU)
+#include <asm/fsl_usb_io.h>
+/*
+ * Sorry, include/asm-m68k/io.h is messed up. It will give you a
+ * BE readl or a LE readl depending on whether or not CONFIG_PCI is set.
+ * how broken is that? Do the right thing here.
+ */
+#undef readl
+#undef writel
+
+#define readl(addr) in_le32((__force unsigned *)(addr))
+#define writel(val, addr) out_le32((__force unsigned *)(addr), (val))
+
+#define readl_be(addr) in_be32((__force unsigned *)(addr))
+#define writel_be(val, addr) out_be32((__force unsigned *)(addr), (val))
+
+#else /* !CONFIG_MMU */
+
+#define readl_be(addr) \
+ ({u32 __v = (*(__force volatile u32 *)addr); __v; })
+#define writel_be(val, addr) \
+ (void)((*(__force volatile u32 *)addr) = val)
+
+#ifndef in_be32
+#define in_be32(addr) \
+ ({ u32 __v = (*(__force volatile u32 *)(addr)); __v; })
+#endif
+
+#ifndef in_le32
+#define in_le32(addr) \
+ ({ u32 __v = le32_to_cpu(*(__force volatile __le32 *)(addr)); __v; })
+#endif
+
+#ifndef out_be32
+#define out_be32(addr, l) (void)((*(__force volatile u32 *)(addr)) = (l))
+#endif
+
+#ifndef out_le32
+#define out_le32(addr, l) \
+ (void)((*(__force volatile __le32 *)(addr)) = cpu_to_le32(l))
+#endif
+
+#endif
+
+#endif /* CONFIG_COLDFIRE */
+
static inline unsigned int ehci_readl(const struct ehci_hcd *ehci,
__u32 __iomem * regs)
{
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -18,3 +18,10 @@ obj-$(CONFIG_NOP_USB_XCEIV) += nop-usb-x
obj-$(CONFIG_USB_ULPI) += ulpi.o
obj-$(CONFIG_USB_MSM_OTG_72K) += msm72k_otg.o
obj-$(CONFIG_AB8500_USB) += ab8500-usb.o
+
+obj-$(CONFIG_USB_OTG) += usb.o
+fsl_usb2_otg-objs := fsl_otg.o otg_fsm.o
+#ifneq ($(CONFIG_USB_OTG),)
+ifneq ($(CONFIG_USB_OTG),)
+obj-m += fsl_usb2_otg.o
+endif
--- /dev/null
+++ b/drivers/usb/otg/fsl_otg.c
@@ -0,0 +1,1212 @@
+/*
+ * Copyright 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * Author: Li Yang <LeoLi@freescale.com>
+ * Jerry Huang <Chang-Ming.Huang@freescale.com>
+ *
+ * Initialization based on code from Shlomi Gridish.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/proc_fs.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/reboot.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+#include <linux/usb.h>
+#include <linux/device.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/workqueue.h>
+#include <linux/time.h>
+#include <linux/fsl_devices.h>
+#include <linux/platform_device.h>
+
+#include <linux/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+#include <asm/byteorder.h>
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+
+#include "fsl_otg.h"
+
+/*
+#undef DBG
+#undef VDBG
+#define DBG(x...) printk(x)
+#define VDBG(x...) printk(x)
+*/
+
+#define CONFIG_USB_OTG_DEBUG_FILES
+#define DRIVER_VERSION "$Revision: 1.55 $"
+#define DRIVER_AUTHOR "Jerry Huang/Li Yang"
+#define DRIVER_DESC "Freescale USB OTG Driver"
+#define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC
+
+MODULE_DESCRIPTION("Freescale USB OTG Transceiver Driver");
+
+static const char driver_name[] = "fsl-usb2-otg";
+
+const pm_message_t otg_suspend_state = {
+ .event = 1,
+};
+
+#define HA_DATA_PULSE 1
+
+volatile static struct usb_dr_mmap *usb_dr_regs;
+static struct fsl_otg *fsl_otg_dev;
+static int srp_wait_done;
+
+/* FSM timers */
+struct fsl_otg_timer *a_wait_vrise_tmr, *a_wait_bcon_tmr, *a_aidl_bdis_tmr,
+ *b_ase0_brst_tmr, *b_se0_srp_tmr;
+
+/* Driver specific timers */
+struct fsl_otg_timer *b_data_pulse_tmr, *b_vbus_pulse_tmr, *b_srp_fail_tmr,
+ *b_srp_wait_tmr, *a_wait_enum_tmr;
+
+static struct list_head active_timers;
+
+static struct fsl_otg_config fsl_otg_initdata = {
+ .otg_port = 1,
+};
+
+/* Routines to access transceiver ULPI registers */
+u8 view_ulpi(u8 addr)
+{
+ u32 temp;
+
+ temp = 0x40000000 | (addr << 16);
+ temp = cpu_to_le32(temp);
+ fsl_writel(temp, &usb_dr_regs->ulpiview);
+ udelay(1000);
+ while (temp & 0x40)
+ temp = fsl_readl(&usb_dr_regs->ulpiview);
+ return (le32_to_cpu(temp) & 0x0000ff00) >> 8;
+}
+
+int write_ulpi(u8 addr, u8 data)
+{
+ u32 temp;
+
+ temp = 0x60000000 | (addr << 16) | data;
+ temp = cpu_to_hc32(temp);
+ fsl_writel(temp, &usb_dr_regs->ulpiview);
+ return 0;
+}
+
+/* -------------------------------------------------------------*/
+/* Operations that will be called from OTG Finite State Machine */
+
+/* Charge vbus for vbus pulsing in SRP */
+void fsl_otg_chrg_vbus(int on)
+{
+ u32 tmp;
+
+ tmp = fsl_readl(&usb_dr_regs->otgsc) & ~OTGSC_INTSTS_MASK;
+
+ if (on)
+ /* stop discharging, start charging */
+ tmp = (tmp & ~OTGSC_CTRL_VBUS_DISCHARGE) |
+ OTGSC_CTRL_VBUS_CHARGE;
+ else
+ /* stop charging */
+ tmp &= ~OTGSC_CTRL_VBUS_CHARGE;
+
+ fsl_writel(tmp, &usb_dr_regs->otgsc);
+}
+
+/* Discharge vbus through a resistor to ground */
+void fsl_otg_dischrg_vbus(int on)
+{
+ u32 tmp;
+
+ tmp = fsl_readl(&usb_dr_regs->otgsc) & ~OTGSC_INTSTS_MASK;
+
+ if (on)
+ /* stop charging, start discharging */
+ tmp = (tmp & ~OTGSC_CTRL_VBUS_CHARGE) |
+ OTGSC_CTRL_VBUS_DISCHARGE;
+ else
+ /* stop discharging */
+ tmp &= ~OTGSC_CTRL_VBUS_DISCHARGE;
+
+ fsl_writel(tmp, &usb_dr_regs->otgsc);
+}
+
+/* A-device driver vbus, controlled through PP bit in PORTSC */
+void fsl_otg_drv_vbus(int on)
+{
+/* if (on)
+ usb_dr_regs->portsc =
+ cpu_to_le32((le32_to_cpu(usb_dr_regs->portsc) &
+ ~PORTSC_W1C_BITS) | PORTSC_PORT_POWER);
+ else
+ usb_dr_regs->portsc =
+ cpu_to_le32(le32_to_cpu(usb_dr_regs->portsc) &
+ ~PORTSC_W1C_BITS & ~PORTSC_PORT_POWER);
+*/
+}
+
+/*
+ * Pull-up D+, signalling connect by periperal. Also used in
+ * data-line pulsing in SRP
+ */
+void fsl_otg_loc_conn(int on)
+{
+ u32 tmp;
+
+ tmp = fsl_readl(&usb_dr_regs->otgsc) & ~OTGSC_INTSTS_MASK;
+
+ if (on)
+ tmp |= OTGSC_CTRL_DATA_PULSING;
+ else
+ tmp &= ~OTGSC_CTRL_DATA_PULSING;
+
+ fsl_writel(tmp, &usb_dr_regs->otgsc);
+}
+
+/* Generate SOF by host. This is controlled through suspend/resume the
+ * port. In host mode, controller will automatically send SOF.
+ * Suspend will block the data on the port.
+ */
+void fsl_otg_loc_sof(int on)
+{
+ u32 tmp;
+
+ tmp = fsl_readl(&fsl_otg_dev->dr_mem_map->portsc) & ~PORTSC_W1C_BITS;
+ if (on)
+ tmp |= PORTSC_PORT_FORCE_RESUME;
+ else
+ tmp |= PORTSC_PORT_SUSPEND;
+
+ fsl_writel(tmp, &fsl_otg_dev->dr_mem_map->portsc);
+
+}
+
+/* Start SRP pulsing by data-line pulsing, followed with v-bus pulsing. */
+void fsl_otg_start_pulse(void)
+{
+ u32 tmp;
+
+ srp_wait_done = 0;
+#ifdef HA_DATA_PULSE
+ tmp = fsl_readl(&usb_dr_regs->otgsc) & ~OTGSC_INTSTS_MASK;
+ tmp |= OTGSC_HA_DATA_PULSE;
+ fsl_writel(tmp, &usb_dr_regs->otgsc);
+#else
+ fsl_otg_loc_conn(1);
+#endif
+
+ fsl_otg_add_timer(b_data_pulse_tmr);
+}
+
+void fsl_otg_pulse_vbus(void);
+
+void b_data_pulse_end(unsigned long foo)
+{
+#ifdef HA_DATA_PULSE
+#else
+ fsl_otg_loc_conn(0);
+#endif
+
+ /* Do VBUS pulse after data pulse */
+ fsl_otg_pulse_vbus();
+}
+
+void fsl_otg_pulse_vbus(void)
+{
+ srp_wait_done = 0;
+ fsl_otg_chrg_vbus(1);
+ /* start the timer to end vbus charge */
+ fsl_otg_add_timer(b_vbus_pulse_tmr);
+}
+
+void b_vbus_pulse_end(unsigned long foo)
+{
+ fsl_otg_chrg_vbus(0);
+
+ /* As USB3300 using the same a_sess_vld and b_sess_vld voltage
+ * we need to discharge the bus for a while to distinguish
+ * residual voltage of vbus pulsing and A device pull up */
+ fsl_otg_dischrg_vbus(1);
+ fsl_otg_add_timer(b_srp_wait_tmr);
+}
+
+void b_srp_end(unsigned long foo)
+{
+ fsl_otg_dischrg_vbus(0);
+ srp_wait_done = 1;
+
+ if ((fsl_otg_dev->otg.state == OTG_STATE_B_SRP_INIT) &&
+ fsl_otg_dev->fsm.b_sess_vld)
+ fsl_otg_dev->fsm.b_srp_done = 1;
+}
+
+/* Workaround for a_host suspending too fast. When a_bus_req=0,
+ * a_host will start by SRP. It needs to set b_hnp_enable before
+ * actually suspending to start HNP
+ */
+void a_wait_enum(unsigned long foo)
+{
+ VDBG("a_wait_enum timeout\n");
+ if (!fsl_otg_dev->otg.host->b_hnp_enable)
+ fsl_otg_add_timer(a_wait_enum_tmr);
+ else
+ otg_statemachine(&fsl_otg_dev->fsm);
+}
+
+/* ------------------------------------------------------*/
+
+/* The timeout callback function to set time out bit */
+void set_tmout(unsigned long indicator)
+{
+ *(int *)indicator = 1;
+}
+
+/* Initialize timers */
+int fsl_otg_init_timers(struct otg_fsm *fsm)
+{
+ /* FSM used timers */
+ a_wait_vrise_tmr = otg_timer_initializer(&set_tmout, TA_WAIT_VRISE,
+ (unsigned long)&fsm->a_wait_vrise_tmout);
+ if (a_wait_vrise_tmr == NULL)
+ return -ENOMEM;
+
+ a_wait_bcon_tmr = otg_timer_initializer(&set_tmout, TA_WAIT_BCON,
+ (unsigned long)&fsm->a_wait_bcon_tmout);
+ if (a_wait_bcon_tmr == NULL)
+ return -ENOMEM;
+
+ a_aidl_bdis_tmr = otg_timer_initializer(&set_tmout, TA_AIDL_BDIS,
+ (unsigned long)&fsm->a_aidl_bdis_tmout);
+ if (a_aidl_bdis_tmr == NULL)
+ return -ENOMEM;
+
+ b_ase0_brst_tmr = otg_timer_initializer(&set_tmout, TB_ASE0_BRST,
+ (unsigned long)&fsm->b_ase0_brst_tmout);
+ if (b_ase0_brst_tmr == NULL)
+ return -ENOMEM;
+
+ b_se0_srp_tmr = otg_timer_initializer(&set_tmout, TB_SE0_SRP,
+ (unsigned long)&fsm->b_se0_srp);
+ if (b_se0_srp_tmr == NULL)
+ return -ENOMEM;
+
+ b_srp_fail_tmr = otg_timer_initializer(&set_tmout, TB_SRP_FAIL,
+ (unsigned long)&fsm->b_srp_done);
+ if (b_srp_fail_tmr == NULL)
+ return -ENOMEM;
+
+ a_wait_enum_tmr = otg_timer_initializer(&a_wait_enum, 10,
+ (unsigned long)&fsm);
+ if (a_wait_enum_tmr == NULL)
+ return -ENOMEM;
+
+ /* device driver used timers */
+ b_srp_wait_tmr = otg_timer_initializer(&b_srp_end, TB_SRP_WAIT, 0);
+ if (b_srp_wait_tmr == NULL)
+ return -ENOMEM;
+
+ b_data_pulse_tmr = otg_timer_initializer(&b_data_pulse_end,
+ TB_DATA_PLS, 0);
+ if (b_data_pulse_tmr == NULL)
+ return -ENOMEM;
+
+ b_vbus_pulse_tmr = otg_timer_initializer(&b_vbus_pulse_end,
+ TB_VBUS_PLS, 0);
+ if (b_vbus_pulse_tmr == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
+
+/* Uninitialize timers */
+void fsl_otg_uninit_timers(void)
+{
+ /* FSM used timers */
+ if (a_wait_vrise_tmr != NULL)
+ kfree(a_wait_vrise_tmr);
+ if (a_wait_bcon_tmr != NULL)
+ kfree(a_wait_bcon_tmr);
+ if (a_aidl_bdis_tmr != NULL)
+ kfree(a_aidl_bdis_tmr);
+ if (b_ase0_brst_tmr != NULL)
+ kfree(b_ase0_brst_tmr);
+ if (b_se0_srp_tmr != NULL)
+ kfree(b_se0_srp_tmr);
+ if (b_srp_fail_tmr != NULL)
+ kfree(b_srp_fail_tmr);
+ if (a_wait_enum_tmr != NULL)
+ kfree(a_wait_enum_tmr);
+
+ /* device driver used timers */
+ if (b_srp_wait_tmr != NULL)
+ kfree(b_srp_wait_tmr);
+ if (b_data_pulse_tmr != NULL)
+ kfree(b_data_pulse_tmr);
+ if (b_vbus_pulse_tmr != NULL)
+ kfree(b_vbus_pulse_tmr);
+}
+
+/* Add timer to timer list */
+void fsl_otg_add_timer(void *gtimer)
+{
+ struct fsl_otg_timer *timer = (struct fsl_otg_timer *)gtimer;
+ struct fsl_otg_timer *tmp_timer;
+
+ /* Check if the timer is already in the active list,
+ * if so update timer count
+ */
+ list_for_each_entry(tmp_timer, &active_timers, list)
+ if (tmp_timer == timer) {
+ timer->count = timer->expires;
+ return;
+ }
+ timer->count = timer->expires;
+ list_add_tail(&timer->list, &active_timers);
+}
+
+/* Remove timer from the timer list; clear timeout status */
+void fsl_otg_del_timer(void *gtimer)
+{
+ struct fsl_otg_timer *timer = (struct fsl_otg_timer *)gtimer;
+ struct fsl_otg_timer *tmp_timer, *del_tmp;
+
+ list_for_each_entry_safe(tmp_timer, del_tmp, &active_timers, list)
+ if (tmp_timer == timer)
+ list_del(&timer->list);
+}
+
+/* Reduce timer count by 1, and find timeout conditions.
+ * Called by fsl_otg 1ms timer interrupt
+ */
+int fsl_otg_tick_timer(void)
+{
+ struct fsl_otg_timer *tmp_timer, *del_tmp;
+ int expired = 0;
+
+ list_for_each_entry_safe(tmp_timer, del_tmp, &active_timers, list) {
+ tmp_timer->count--;
+ /* check if timer expires */
+ if (!tmp_timer->count) {
+ list_del(&tmp_timer->list);
+ tmp_timer->function(tmp_timer->data);
+ expired = 1;
+ }
+ }
+
+ return expired;
+}
+
+/* Reset controller, not reset the bus */
+void otg_reset_controller(void)
+{
+ u32 command;
+
+ command = fsl_readl(&usb_dr_regs->usbcmd);
+ command |= (1 << 1);
+ fsl_writel(command, &usb_dr_regs->usbcmd);
+ while (fsl_readl(&usb_dr_regs->usbcmd) & (1 << 1))
+ ;
+}
+
+/* Call suspend/resume routines in host driver */
+int fsl_otg_start_host(struct otg_fsm *fsm, int on)
+{
+ struct otg_transceiver *xceiv = fsm->transceiver;
+ struct device *dev;
+ struct fsl_otg *otg_dev = container_of(xceiv, struct fsl_otg, otg);
+ u32 retval = 0;
+
+ if (!xceiv->host)
+ return -ENODEV;
+ dev = xceiv->host->controller;
+
+ /* Update a_vbus_vld state as a_vbus_vld int is disabled
+ * in device mode
+ */
+ fsm->a_vbus_vld =
+ !!(fsl_readl(&usb_dr_regs->otgsc) & OTGSC_STS_A_VBUS_VALID);
+ if (on) {
+ /* start fsl usb host controller */
+ if (otg_dev->host_working)
+ goto end;
+ else {
+ otg_reset_controller();
+ VDBG("host on......\n");
+ if (dev->driver->resume) {
+ retval = dev->driver->resume(dev);
+ if (fsm->id) {
+ /* default-b */
+ fsl_otg_drv_vbus(1);
+ /* Workaround: b_host can't driver
+ * vbus, but PP in PORTSC needs to
+ * be 1 for host to work.
+ * So we set drv_vbus bit in
+ * transceiver to 0 thru ULPI. */
+ write_ulpi(0x0c, 0x20);
+ }
+ }
+
+ otg_dev->host_working = 1;
+ }
+ } else {
+ /* stop fsl usb host controller */
+ if (!otg_dev->host_working)
+ goto end;
+ else {
+ VDBG("host off......\n");
+ if (dev && dev->driver) {
+ retval = dev->driver->suspend(dev,
+ otg_suspend_state);
+ if (fsm->id)
+ /* default-b */
+ fsl_otg_drv_vbus(0);
+ }
+ otg_dev->host_working = 0;
+ }
+ }
+end:
+ return retval;
+}
+
+/* Call suspend and resume function in udc driver
+ * to stop and start udc driver.
+ */
+int fsl_otg_start_gadget(struct otg_fsm *fsm, int on)
+{
+ struct otg_transceiver *xceiv = fsm->transceiver;
+ struct device *dev;
+
+ if (!xceiv->gadget || !xceiv->gadget->dev.parent)
+ return -ENODEV;
+
+ VDBG("gadget %s\n", on ? "on" : "off");
+ dev = xceiv->gadget->dev.parent;
+
+ if (on)
+ dev->driver->resume(dev);
+ else
+ dev->driver->suspend(dev, otg_suspend_state);
+
+ return 0;
+}
+
+/* Called by initialization code of host driver. Register host controller
+ * to the OTG. Suspend host for OTG role detection.
+ */
+static int fsl_otg_set_host(struct otg_transceiver *otg_p, struct usb_bus *host)
+{
+ struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
+
+ if (!otg_p || otg_dev != fsl_otg_dev)
+ return -ENODEV;
+
+ DBG("%s\n", __func__);
+ otg_p->host = host;
+
+ otg_dev->fsm.a_bus_drop = 0;
+ otg_dev->fsm.a_bus_req = 1;
+
+ if (host) {
+ VDBG("host off......\n");
+
+ otg_p->host->otg_port = fsl_otg_initdata.otg_port;
+ otg_p->host->is_b_host = otg_dev->fsm.id;
+ /* must leave time for khubd to finish its thing
+ * before yanking the host driver out from under it,
+ * so suspend the host after a short delay.
+ */
+ otg_dev->host_working = 1;
+ schedule_delayed_work(&otg_dev->otg_event, 100);
+ return 0;
+ } else { /* host driver going away */
+
+ if (!(fsl_readl(&otg_dev->dr_mem_map->otgsc) &
+ OTGSC_STS_USB_ID)) {
+ /* Mini-A cable connected */
+ struct otg_fsm *fsm = &otg_dev->fsm;
+
+ otg_p->state = OTG_STATE_UNDEFINED;
+ fsm->protocol = PROTO_UNDEF;
+ }
+ }
+
+ otg_dev->host_working = 0;
+
+ otg_statemachine(&otg_dev->fsm);
+
+ return 0;
+}
+
+/* Called by initialization code of udc. Register udc to OTG.*/
+static int fsl_otg_set_peripheral(struct otg_transceiver *otg_p,
+ struct usb_gadget *gadget)
+{
+ struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
+
+ DBG("%s\n", __func__);
+ VDBG("otg_dev 0x%x\n", (int)otg_dev);
+ VDBG("fsl_otg_dev 0x%x\n", (int)fsl_otg_dev);
+
+ if (!otg_p || otg_dev != fsl_otg_dev)
+ return -ENODEV;
+
+ if (!gadget) {
+ if (!otg_dev->otg.default_a)
+ otg_p->gadget->ops->vbus_draw(otg_p->gadget, 0);
+ usb_gadget_vbus_disconnect(otg_dev->otg.gadget);
+ otg_dev->otg.gadget = 0;
+ otg_dev->fsm.b_bus_req = 0;
+ otg_statemachine(&otg_dev->fsm);
+ return 0;
+ }
+
+ otg_p->gadget = gadget;
+ otg_p->gadget->is_a_peripheral = !otg_dev->fsm.id;
+
+ otg_dev->fsm.b_bus_req = 1;
+
+ /* start the gadget right away if the ID pin says Mini-B */
+ DBG("ID pin=%d\n", otg_dev->fsm.id);
+ if (otg_dev->fsm.id == 1) {
+ fsl_otg_start_host(&otg_dev->fsm, 0);
+ otg_drv_vbus(&otg_dev->fsm, 0);
+ fsl_otg_start_gadget(&otg_dev->fsm, 1);
+ }
+
+ return 0;
+}
+
+/* Set OTG port power, only for B-device */
+static int fsl_otg_set_power(struct otg_transceiver *otg_p, unsigned mA)
+{
+ if (!fsl_otg_dev)
+ return -ENODEV;
+ if (otg_p->state == OTG_STATE_B_PERIPHERAL)
+ printk(KERN_INFO "FSL OTG:Draw %d mA\n", mA);
+
+ return 0;
+}
+
+/* Delayed pin detect interrupt processing.
+ *
+ * When the Mini-A cable is disconnected from the board,
+ * the pin-detect interrupt happens before the disconnnect
+ * interrupts for the connected device(s). In order to
+ * process the disconnect interrupt(s) prior to switching
+ * roles, the pin-detect interrupts are delayed, and handled
+ * by this routine.
+ */
+static void fsl_otg_event(struct work_struct *work)
+{
+ struct fsl_otg *og = container_of(work, struct fsl_otg, otg_event.work);
+ struct otg_fsm *fsm = &og->fsm;
+
+ if (fsm->id) { /* switch to gadget */
+ fsl_otg_start_host(fsm, 0);
+ otg_drv_vbus(fsm, 0);
+ fsl_otg_start_gadget(fsm, 1);
+ }
+}
+
+/* B-device start SRP */
+static int fsl_otg_start_srp(struct otg_transceiver *otg_p)
+{
+ struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
+
+ if (!otg_p || otg_dev != fsl_otg_dev
+ || otg_p->state != OTG_STATE_B_IDLE)
+ return -ENODEV;
+
+ otg_dev->fsm.b_bus_req = 1;
+ otg_statemachine(&otg_dev->fsm);
+
+ return 0;
+}
+
+/* A_host suspend will call this function to start hnp */
+static int fsl_otg_start_hnp(struct otg_transceiver *otg_p)
+{
+ struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
+
+ if (!otg_p || otg_dev != fsl_otg_dev)
+ return -ENODEV;
+
+ /* printk("start_hnp.............\n"); */
+ /* clear a_bus_req to enter a_suspend state */
+ otg_dev->fsm.a_bus_req = 0;
+ otg_statemachine(&otg_dev->fsm);
+
+ return 0;
+}
+
+/* Interrupt handler. OTG/host/peripheral share the same int line.
+ * OTG driver clears OTGSC interrupts and leaves USB interrupts
+ * intact. It needs to have knowledge of some USB interrupts
+ * such as port change.
+ */
+irqreturn_t fsl_otg_isr(int irq, void *dev_id)
+{
+ struct otg_fsm *fsm = &((struct fsl_otg *)dev_id)->fsm;
+ struct otg_transceiver *otg = &((struct fsl_otg *)dev_id)->otg;
+ u32 otg_int_src, otg_sc;
+
+ otg_sc = fsl_readl(&usb_dr_regs->otgsc);
+ otg_int_src = otg_sc & OTGSC_INTSTS_MASK;
+
+ /* Only clear otg interrupts */
+ fsl_writel(otg_sc, &usb_dr_regs->otgsc);
+
+ /*FIXME: ID change not generate when init to 0 */
+ fsm->id = (otg_sc & OTGSC_STS_USB_ID) ? 1 : 0;
+ otg->default_a = (fsm->id == 0);
+
+ /* process OTG interrupts */
+ if (otg_int_src) {
+ if (otg_int_src & OTGSC_INTSTS_USB_ID) {
+ fsm->id = (otg_sc & OTGSC_STS_USB_ID) ? 1 : 0;
+ otg->default_a = (fsm->id == 0);
+ /* clear conn information */
+ if (fsm->id)
+ fsm->b_conn = 0;
+ else
+ fsm->a_conn = 0;
+
+ if (otg->host)
+ otg->host->is_b_host = fsm->id;
+ if (otg->gadget)
+ otg->gadget->is_a_peripheral = !fsm->id;
+ VDBG("ID int (ID is %d)\n", fsm->id);
+
+ if (fsm->id) { /* switch to gadget */
+ schedule_delayed_work(&((struct fsl_otg *)
+ dev_id)->otg_event, 100);
+ } else { /* switch to host */
+ cancel_delayed_work(&
+ ((struct fsl_otg *)dev_id)->
+ otg_event);
+ fsl_otg_start_gadget(fsm, 0);
+ otg_drv_vbus(fsm, 1);
+ fsl_otg_start_host(fsm, 1);
+ }
+ return IRQ_HANDLED;
+ }
+ }
+ return IRQ_NONE;
+}
+
+static struct otg_fsm_ops fsl_otg_ops = {
+ .chrg_vbus = fsl_otg_chrg_vbus,
+ .drv_vbus = fsl_otg_drv_vbus,
+ .loc_conn = fsl_otg_loc_conn,
+ .loc_sof = fsl_otg_loc_sof,
+ .start_pulse = fsl_otg_start_pulse,
+
+ .add_timer = fsl_otg_add_timer,
+ .del_timer = fsl_otg_del_timer,
+
+ .start_host = fsl_otg_start_host,
+ .start_gadget = fsl_otg_start_gadget,
+};
+
+/* Initialize the global variable fsl_otg_dev and request IRQ for OTG */
+static int fsl_otg_conf(struct platform_device *pdev)
+{
+ int status;
+ struct fsl_otg *fsl_otg_tc;
+ struct fsl_usb2_platform_data *pdata;
+
+ pdata = pdev->dev.platform_data;
+
+ if (fsl_otg_dev)
+ return 0;
+
+ /* allocate space to fsl otg device */
+ fsl_otg_tc = kzalloc(sizeof(struct fsl_otg), GFP_KERNEL);
+ if (!fsl_otg_tc)
+ return -ENODEV;
+
+ INIT_DELAYED_WORK(&fsl_otg_tc->otg_event, fsl_otg_event);
+
+ INIT_LIST_HEAD(&active_timers);
+ status = fsl_otg_init_timers(&fsl_otg_tc->fsm);
+ if (status) {
+ printk(KERN_INFO "Couldn't init OTG timers\n");
+ fsl_otg_uninit_timers();
+ kfree(fsl_otg_tc);
+ return status;
+ }
+ spin_lock_init(&fsl_otg_tc->fsm.lock);
+
+ /* Set OTG state machine operations */
+ fsl_otg_tc->fsm.ops = &fsl_otg_ops;
+
+ /* initialize the otg structure */
+ fsl_otg_tc->otg.label = DRIVER_DESC;
+ fsl_otg_tc->otg.set_host = fsl_otg_set_host;
+ fsl_otg_tc->otg.set_peripheral = fsl_otg_set_peripheral;
+ fsl_otg_tc->otg.set_power = fsl_otg_set_power;
+ fsl_otg_tc->otg.start_hnp = fsl_otg_start_hnp;
+ fsl_otg_tc->otg.start_srp = fsl_otg_start_srp;
+
+ fsl_otg_dev = fsl_otg_tc;
+
+ /* Store the otg transceiver */
+ status = otg_set_transceiver(&fsl_otg_tc->otg);
+ if (status) {
+ printk(KERN_WARNING ": unable to register OTG transceiver.\n");
+ return status;
+ }
+
+ return 0;
+}
+
+/* OTG Initialization*/
+int usb_otg_start(struct platform_device *pdev)
+{
+ struct fsl_otg __iomem *p_otg;
+ struct otg_transceiver *otg_trans = otg_get_transceiver();
+ struct otg_fsm *fsm;
+ volatile unsigned long *p;
+ int status;
+ struct resource *res;
+ u32 temp;
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+
+ p_otg = container_of(otg_trans, struct fsl_otg, otg);
+ fsm = &p_otg->fsm;
+
+ /* Initialize the state machine structure with default values */
+ SET_OTG_STATE(otg_trans, OTG_STATE_UNDEFINED);
+ fsm->transceiver = &p_otg->otg;
+
+ /* We don't require predefined MEM/IRQ resource index */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENXIO;
+
+ /* We don't request_mem_region here to enable resource sharing
+ * with host/device */
+
+ usb_dr_regs = ioremap(res->start, sizeof(struct usb_dr_mmap));
+ p_otg->dr_mem_map = (struct usb_dr_mmap *)usb_dr_regs;
+ pdata->regs = (void *)usb_dr_regs;
+
+ /* request irq */
+ p_otg->irq = platform_get_irq(pdev, 0);
+ status = request_irq(p_otg->irq, fsl_otg_isr,
+ IRQF_SHARED, driver_name, p_otg);
+ if (status) {
+ dev_dbg(p_otg->otg.dev, "can't get IRQ %d, error %d\n",
+ p_otg->irq, status);
+ iounmap(p_otg->dr_mem_map);
+ kfree(p_otg);
+ return status;
+ }
+
+ if (pdata->init && pdata->init(pdev) != 0)
+ return -EINVAL;
+
+
+ /* Export DR controller resources */
+ otg_set_resources(pdev->resource);
+
+ /* stop the controller */
+ temp = fsl_readl(&p_otg->dr_mem_map->usbcmd);
+ temp &= ~USB_CMD_RUN_STOP;
+ fsl_writel(temp, &p_otg->dr_mem_map->usbcmd);
+
+ /* reset the controller */
+ temp = fsl_readl(&p_otg->dr_mem_map->usbcmd);
+ temp |= USB_CMD_CTRL_RESET;
+ fsl_writel(temp, &p_otg->dr_mem_map->usbcmd);
+
+ /* wait reset completed */
+ udelay(2);
+ while (fsl_readl(&p_otg->dr_mem_map->usbcmd) & USB_CMD_CTRL_RESET)
+ ;
+
+ /* configure the VBUSHS as IDLE(both host and device) */
+ temp = USB_MODE_STREAM_DISABLE | (pdata->es ? USB_MODE_ES : 0);
+ fsl_writel(temp, &p_otg->dr_mem_map->usbmode);
+
+ /* configure PHY interface */
+ temp = fsl_readl(&p_otg->dr_mem_map->portsc);
+ temp &= ~(PORTSC_PHY_TYPE_SEL | PORTSC_PTW);
+ switch (pdata->phy_mode) {
+ case FSL_USB2_PHY_ULPI:
+ temp |= PORTSC_PTS_ULPI;
+ break;
+ case FSL_USB2_PHY_UTMI_WIDE:
+ temp |= PORTSC_PTW_16BIT;
+ /* fall through */
+ case FSL_USB2_PHY_UTMI:
+ temp |= PORTSC_PTS_UTMI;
+ /* fall through */
+ default:
+ break;
+ }
+ fsl_writel(temp, &p_otg->dr_mem_map->portsc);
+
+ if (pdata->have_sysif_regs) {
+ /* configure control enable IO output, big endian register */
+ p = (volatile unsigned long *)(&p_otg->dr_mem_map->control);
+ temp = *p;
+ temp |= USB_CTRL_IOENB;
+ *p = temp;
+ }
+
+ /* disable all interrupt and clear all OTGSC status */
+ temp = fsl_readl(&p_otg->dr_mem_map->otgsc);
+ temp &= ~OTGSC_INTERRUPT_ENABLE_BITS_MASK;
+ temp |= OTGSC_INTERRUPT_STATUS_BITS_MASK | OTGSC_CTRL_VBUS_DISCHARGE;
+ fsl_writel(temp, &p_otg->dr_mem_map->otgsc);
+
+
+ /*
+ * The identification (id) input is FALSE when a Mini-A plug is inserted
+ * in the devices Mini-AB receptacle. Otherwise, this input is TRUE.
+ * Also: record initial state of ID pin
+ */
+ if (fsl_readl(&p_otg->dr_mem_map->otgsc) & OTGSC_STS_USB_ID) {
+ p_otg->otg.state = OTG_STATE_UNDEFINED;
+ p_otg->fsm.id = 1;
+ } else {
+ p_otg->otg.state = OTG_STATE_A_IDLE;
+ p_otg->fsm.id = 0;
+ }
+
+ DBG("initial ID pin=%d\n", p_otg->fsm.id);
+
+ /* enable OTG ID pin interrupt */
+ temp = fsl_readl(&p_otg->dr_mem_map->otgsc);
+ temp |= OTGSC_INTR_USB_ID_EN;
+ temp &= ~(OTGSC_CTRL_VBUS_DISCHARGE | OTGSC_INTR_1MS_TIMER_EN);
+ fsl_writel(temp, &p_otg->dr_mem_map->otgsc);
+
+ return 0;
+}
+
+/*-------------------------------------------------------------------------
+ PROC File System Support
+-------------------------------------------------------------------------*/
+#ifdef CONFIG_USB_OTG_DEBUG_FILES
+
+#include <linux/seq_file.h>
+
+static const char proc_filename[] = "driver/fsl_usb2_otg";
+
+static int otg_proc_read(char *page, char **start, off_t off, int count,
+ int *eof, void *_dev)
+{
+ struct otg_fsm *fsm = &fsl_otg_dev->fsm;
+ char *buf = page;
+ char *next = buf;
+ unsigned size = count;
+ unsigned long flags;
+ int t;
+ u32 tmp_reg;
+
+ if (off != 0)
+ return 0;
+
+ spin_lock_irqsave(&fsm->lock, flags);
+
+ /* ------basic driver infomation ---- */
+ t = scnprintf(next, size,
+ DRIVER_DESC "\n" "fsl_usb2_otg version: %s\n\n",
+ DRIVER_VERSION);
+ size -= t;
+ next += t;
+
+ /* ------ Registers ----- */
+ tmp_reg = fsl_readl(&usb_dr_regs->otgsc);
+ t = scnprintf(next, size, "OTGSC reg: %08x\n", tmp_reg);
+ size -= t;
+ next += t;
+
+ tmp_reg = fsl_readl(&usb_dr_regs->portsc);
+ t = scnprintf(next, size, "PORTSC reg: %08x\n", tmp_reg);
+ size -= t;
+ next += t;
+
+ tmp_reg = fsl_readl(&usb_dr_regs->usbmode);
+ t = scnprintf(next, size, "USBMODE reg: %08x\n", tmp_reg);
+ size -= t;
+ next += t;
+
+ tmp_reg = fsl_readl(&usb_dr_regs->usbcmd);
+ t = scnprintf(next, size, "USBCMD reg: %08x\n", tmp_reg);
+ size -= t;
+ next += t;
+
+ tmp_reg = fsl_readl(&usb_dr_regs->usbsts);
+ t = scnprintf(next, size, "USBSTS reg: %08x\n", tmp_reg);
+ size -= t;
+ next += t;
+
+ tmp_reg = fsl_readl(&usb_dr_regs->usbintr);
+ t = scnprintf(next, size, "USBINTR reg: %08x\n", tmp_reg);
+ size -= t;
+ next += t;
+
+ /* ------ State ----- */
+ t = scnprintf(next, size,
+ "OTG state: %s\n\n",
+ state_string(fsl_otg_dev->otg.state));
+ size -= t;
+ next += t;
+
+ /* ------ State Machine Variables ----- */
+ t = scnprintf(next, size, "a_bus_req: %d\n", fsm->a_bus_req);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "b_bus_req: %d\n", fsm->b_bus_req);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "a_bus_resume: %d\n", fsm->a_bus_resume);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "a_bus_suspend: %d\n", fsm->a_bus_suspend);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "a_conn: %d\n", fsm->a_conn);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "a_sess_vld: %d\n", fsm->a_sess_vld);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "a_srp_det: %d\n", fsm->a_srp_det);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "a_vbus_vld: %d\n", fsm->a_vbus_vld);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "b_bus_resume: %d\n", fsm->b_bus_resume);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "b_bus_suspend: %d\n", fsm->b_bus_suspend);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "b_conn: %d\n", fsm->b_conn);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "b_se0_srp: %d\n", fsm->b_se0_srp);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "b_sess_end: %d\n", fsm->b_sess_end);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "b_sess_vld: %d\n", fsm->b_sess_vld);
+ size -= t;
+ next += t;
+
+ t = scnprintf(next, size, "id: %d\n", fsm->id);
+ size -= t;
+ next += t;
+
+ spin_unlock_irqrestore(&fsm->lock, flags);
+
+ *eof = 1;
+ return count - size;
+}
+
+#define create_proc_file() create_proc_read_entry(proc_filename, \
+ 0, NULL, otg_proc_read, NULL)
+
+#define remove_proc_file() remove_proc_entry(proc_filename, NULL)
+
+#else /* !CONFIG_USB_OTG_DEBUG_FILES */
+
+#define create_proc_file() do {} while (0)
+#define remove_proc_file() do {} while (0)
+
+#endif /*CONFIG_USB_OTG_DEBUG_FILES */
+
+/*----------------------------------------------------------*/
+/* Char driver interface to control some OTG input */
+
+/* This function handle some ioctl command,such as get otg
+ * status and set host suspend
+ */
+static long fsl_otg_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ u32 retval = 0;
+
+ switch (cmd) {
+ case GET_OTG_STATUS:
+ retval = fsl_otg_dev->host_working;
+ break;
+
+ case SET_A_SUSPEND_REQ:
+ fsl_otg_dev->fsm.a_suspend_req = arg;
+ break;
+
+ case SET_A_BUS_DROP:
+ fsl_otg_dev->fsm.a_bus_drop = arg;
+ break;
+
+ case SET_A_BUS_REQ:
+ fsl_otg_dev->fsm.a_bus_req = arg;
+ break;
+
+ case SET_B_BUS_REQ:
+ fsl_otg_dev->fsm.b_bus_req = arg;
+ break;
+
+ default:
+ break;
+ }
+
+ otg_statemachine(&fsl_otg_dev->fsm);
+
+ return retval;
+}
+
+static int fsl_otg_open(struct inode *inode, struct file *file)
+{
+
+ return 0;
+}
+
+static int fsl_otg_release(struct inode *inode, struct file *file)
+{
+
+ return 0;
+}
+
+static struct file_operations otg_fops = {
+ .owner = THIS_MODULE,
+ .llseek = NULL,
+ .read = NULL,
+ .write = NULL,
+ .unlocked_ioctl = fsl_otg_ioctl,
+ .open = fsl_otg_open,
+ .release = fsl_otg_release,
+};
+
+static int __init fsl_otg_probe(struct platform_device *pdev)
+{
+ int status;
+ struct fsl_usb2_platform_data *pdata;
+
+ DBG("pdev=0x%p\n", pdev);
+
+ if (!pdev)
+ return -ENODEV;
+
+ if (!pdev->dev.platform_data)
+ return -ENOMEM;
+
+ pdata = pdev->dev.platform_data;
+ fsl_set_usb_accessors(pdata);
+
+ /* configure the OTG */
+ status = fsl_otg_conf(pdev);
+ if (status) {
+ printk(KERN_INFO "Couldn't init OTG module\n");
+ return -status;
+ }
+
+ /* start OTG */
+ status = usb_otg_start(pdev);
+
+ if (register_chrdev(FSL_OTG_MAJOR, FSL_OTG_NAME, &otg_fops)) {
+ printk(KERN_WARNING FSL_OTG_NAME
+ ": unable to register FSL OTG device\n");
+ return -EIO;
+ }
+
+ create_proc_file();
+ return status;
+}
+
+static int __exit fsl_otg_remove(struct platform_device *pdev)
+{
+ struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
+
+ otg_set_transceiver(NULL);
+ free_irq(fsl_otg_dev->irq, fsl_otg_dev);
+
+ iounmap((void *)usb_dr_regs);
+
+ kfree(fsl_otg_dev);
+
+ remove_proc_file();
+
+ unregister_chrdev(FSL_OTG_MAJOR, FSL_OTG_NAME);
+
+ if (pdata->exit)
+ pdata->exit(pdev);
+
+ return 0;
+}
+
+struct platform_driver fsl_otg_driver = {
+ .probe = fsl_otg_probe,
+ .remove = __exit_p(fsl_otg_remove),
+ .driver = {
+ .name = driver_name,
+ .owner = THIS_MODULE,
+ },
+};
+
+/*-------------------------------------------------------------------------*/
+
+static int __init fsl_usb_otg_init(void)
+{
+ printk(KERN_INFO DRIVER_DESC " loaded, %s\n", DRIVER_VERSION);
+ return platform_driver_register(&fsl_otg_driver);
+}
+
+static void __exit fsl_usb_otg_exit(void)
+{
+ platform_driver_unregister(&fsl_otg_driver);
+ printk(KERN_INFO DRIVER_DESC " unloaded\n");
+}
+
+module_init(fsl_usb_otg_init);
+module_exit(fsl_usb_otg_exit);
+
+MODULE_DESCRIPTION(DRIVER_INFO);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/drivers/usb/otg/fsl_otg.h
@@ -0,0 +1,423 @@
+/* Copyright 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "otg_fsm.h"
+#include <linux/usb/otg.h>
+#include <linux/ioctl.h>
+
+#ifdef CONFIG_PPC32
+#include <asm/fsl_usb_io.h>
+#elif CONFIG_COLDFIRE
+#include <asm/mcfsim.h>
+#include <asm/fsl_usb_io.h>
+#endif
+
+#define hc32_to_cpu(x) (x)
+#define cpu_to_hc32(x) (x)
+
+ /* USB Command Register Bit Masks */
+#define USB_CMD_RUN_STOP (0x1<<0)
+#define USB_CMD_CTRL_RESET (0x1<<1)
+#define USB_CMD_PERIODIC_SCHEDULE_EN (0x1<<4)
+#define USB_CMD_ASYNC_SCHEDULE_EN (0x1<<5)
+#define USB_CMD_INT_AA_DOORBELL (0x1<<6)
+#define USB_CMD_ASP (0x3<<8)
+#define USB_CMD_ASYNC_SCH_PARK_EN (0x1<<11)
+#define USB_CMD_SUTW (0x1<<13)
+#define USB_CMD_ATDTW (0x1<<14)
+#define USB_CMD_ITC (0xFF<<16)
+
+/* bit 15,3,2 are frame list size */
+#define USB_CMD_FRAME_SIZE_1024 (0x0<<15 | 0x0<<2)
+#define USB_CMD_FRAME_SIZE_512 (0x0<<15 | 0x1<<2)
+#define USB_CMD_FRAME_SIZE_256 (0x0<<15 | 0x2<<2)
+#define USB_CMD_FRAME_SIZE_128 (0x0<<15 | 0x3<<2)
+#define USB_CMD_FRAME_SIZE_64 (0x1<<15 | 0x0<<2)
+#define USB_CMD_FRAME_SIZE_32 (0x1<<15 | 0x1<<2)
+#define USB_CMD_FRAME_SIZE_16 (0x1<<15 | 0x2<<2)
+#define USB_CMD_FRAME_SIZE_8 (0x1<<15 | 0x3<<2)
+
+/* bit 9-8 are async schedule park mode count */
+#define USB_CMD_ASP_00 (0x0<<8)
+#define USB_CMD_ASP_01 (0x1<<8)
+#define USB_CMD_ASP_10 (0x2<<8)
+#define USB_CMD_ASP_11 (0x3<<8)
+#define USB_CMD_ASP_BIT_POS (8)
+
+/* bit 23-16 are interrupt threshold control */
+#define USB_CMD_ITC_NO_THRESHOLD (0x00<<16)
+#define USB_CMD_ITC_1_MICRO_FRM (0x01<<16)
+#define USB_CMD_ITC_2_MICRO_FRM (0x02<<16)
+#define USB_CMD_ITC_4_MICRO_FRM (0x04<<16)
+#define USB_CMD_ITC_8_MICRO_FRM (0x08<<16)
+#define USB_CMD_ITC_16_MICRO_FRM (0x10<<16)
+#define USB_CMD_ITC_32_MICRO_FRM (0x20<<16)
+#define USB_CMD_ITC_64_MICRO_FRM (0x40<<16)
+#define USB_CMD_ITC_BIT_POS (16)
+
+/* USB Status Register Bit Masks */
+#define USB_STS_INT (0x1<<0)
+#define USB_STS_ERR (0x1<<1)
+#define USB_STS_PORT_CHANGE (0x1<<2)
+#define USB_STS_FRM_LST_ROLL (0x1<<3)
+#define USB_STS_SYS_ERR (0x1<<4)
+#define USB_STS_IAA (0x1<<5)
+#define USB_STS_RESET_RECEIVED (0x1<<6)
+#define USB_STS_SOF (0x1<<7)
+#define USB_STS_DCSUSPEND (0x1<<8)
+#define USB_STS_HC_HALTED (0x1<<12)
+#define USB_STS_RCL (0x1<<13)
+#define USB_STS_PERIODIC_SCHEDULE (0x1<<14)
+#define USB_STS_ASYNC_SCHEDULE (0x1<<15)
+
+/* USB Interrupt Enable Register Bit Masks */
+#define USB_INTR_INT_EN (0x1<<0)
+#define USB_INTR_ERR_INT_EN (0x1<<1)
+#define USB_INTR_PC_DETECT_EN (0x1<<2)
+#define USB_INTR_FRM_LST_ROLL_EN (0x1<<3)
+#define USB_INTR_SYS_ERR_EN (0x1<<4)
+#define USB_INTR_ASYN_ADV_EN (0x1<<5)
+#define USB_INTR_RESET_EN (0x1<<6)
+#define USB_INTR_SOF_EN (0x1<<7)
+#define USB_INTR_DEVICE_SUSPEND (0x1<<8)
+
+/* Device Address bit masks */
+#define USB_DEVICE_ADDRESS_MASK (0x7F<<25)
+#define USB_DEVICE_ADDRESS_BIT_POS (25)
+/* PORTSC Register Bit Masks,Only one PORT in OTG mode*/
+#define PORTSC_CURRENT_CONNECT_STATUS (0x1<<0)
+#define PORTSC_CONNECT_STATUS_CHANGE (0x1<<1)
+#define PORTSC_PORT_ENABLE (0x1<<2)
+#define PORTSC_PORT_EN_DIS_CHANGE (0x1<<3)
+#define PORTSC_OVER_CURRENT_ACT (0x1<<4)
+#define PORTSC_OVER_CUURENT_CHG (0x1<<5)
+#define PORTSC_PORT_FORCE_RESUME (0x1<<6)
+#define PORTSC_PORT_SUSPEND (0x1<<7)
+#define PORTSC_PORT_RESET (0x1<<8)
+#define PORTSC_LINE_STATUS_BITS (0x3<<10)
+#define PORTSC_PORT_POWER (0x1<<12)
+#define PORTSC_PORT_INDICTOR_CTRL (0x3<<14)
+#define PORTSC_PORT_TEST_CTRL (0xF<<16)
+#define PORTSC_WAKE_ON_CONNECT_EN (0x1<<20)
+#define PORTSC_WAKE_ON_CONNECT_DIS (0x1<<21)
+#define PORTSC_WAKE_ON_OVER_CURRENT (0x1<<22)
+#define PORTSC_PHY_LOW_POWER_SPD (0x1<<23)
+#define PORTSC_PORT_FORCE_FULL_SPEED (0x1<<24)
+#define PORTSC_PORT_SPEED_MASK (0x3<<26)
+#define PORTSC_TRANSCEIVER_WIDTH (0x1<<28)
+#define PORTSC_PHY_TYPE_SEL (0x3<<30)
+/* bit 11-10 are line status */
+#define PORTSC_LINE_STATUS_SE0 (0x0<<10)
+#define PORTSC_LINE_STATUS_JSTATE (0x1<<10)
+#define PORTSC_LINE_STATUS_KSTATE (0x2<<10)
+#define PORTSC_LINE_STATUS_UNDEF (0x3<<10)
+#define PORTSC_LINE_STATUS_BIT_POS (10)
+
+/* bit 15-14 are port indicator control */
+#define PORTSC_PIC_OFF (0x0<<14)
+#define PORTSC_PIC_AMBER (0x1<<14)
+#define PORTSC_PIC_GREEN (0x2<<14)
+#define PORTSC_PIC_UNDEF (0x3<<14)
+#define PORTSC_PIC_BIT_POS (14)
+
+/* bit 19-16 are port test control */
+#define PORTSC_PTC_DISABLE (0x0<<16)
+#define PORTSC_PTC_JSTATE (0x1<<16)
+#define PORTSC_PTC_KSTATE (0x2<<16)
+#define PORTSC_PTC_SEQNAK (0x3<<16)
+#define PORTSC_PTC_PACKET (0x4<<16)
+#define PORTSC_PTC_FORCE_EN (0x5<<16)
+#define PORTSC_PTC_BIT_POS (16)
+
+/* bit 27-26 are port speed */
+#define PORTSC_PORT_SPEED_FULL (0x0<<26)
+#define PORTSC_PORT_SPEED_LOW (0x1<<26)
+#define PORTSC_PORT_SPEED_HIGH (0x2<<26)
+#define PORTSC_PORT_SPEED_UNDEF (0x3<<26)
+#define PORTSC_SPEED_BIT_POS (26)
+
+/* bit 28 is parallel transceiver width for UTMI interface */
+#define PORTSC_PTW (0x1<<28)
+#define PORTSC_PTW_8BIT (0x0<<28)
+#define PORTSC_PTW_16BIT (0x1<<28)
+
+/* bit 31-30 are port transceiver select */
+#define PORTSC_PTS_UTMI (0x0<<30)
+#define PORTSC_PTS_ULPI (0x2<<30)
+#define PORTSC_PTS_FSLS_SERIAL (0x3<<30)
+#define PORTSC_PTS_BIT_POS (30)
+
+#define PORTSC_W1C_BITS \
+ (PORTSC_CONNECT_STATUS_CHANGE | \
+ PORTSC_PORT_EN_DIS_CHANGE | \
+ PORTSC_OVER_CUURENT_CHG)
+
+/* OTG Status Control Register Bit Masks */
+#define OTGSC_CTRL_VBUS_DISCHARGE (0x1<<0)
+#define OTGSC_CTRL_VBUS_CHARGE (0x1<<1)
+#define OTGSC_CTRL_OTG_TERMINATION (0x1<<3)
+#define OTGSC_CTRL_DATA_PULSING (0x1<<4)
+#define OTGSC_CTRL_ID_PULL_EN (0x1<<5)
+#define OTGSC_HA_DATA_PULSE (0x1<<6)
+#define OTGSC_HA_BA (0x1<<7)
+#define OTGSC_STS_USB_ID (0x1<<8)
+#define OTGSC_STS_A_VBUS_VALID (0x1<<9)
+#define OTGSC_STS_A_SESSION_VALID (0x1<<10)
+#define OTGSC_STS_B_SESSION_VALID (0x1<<11)
+#define OTGSC_STS_B_SESSION_END (0x1<<12)
+#define OTGSC_STS_1MS_TOGGLE (0x1<<13)
+#define OTGSC_STS_DATA_PULSING (0x1<<14)
+#define OTGSC_INTSTS_USB_ID (0x1<<16)
+#define OTGSC_INTSTS_A_VBUS_VALID (0x1<<17)
+#define OTGSC_INTSTS_A_SESSION_VALID (0x1<<18)
+#define OTGSC_INTSTS_B_SESSION_VALID (0x1<<19)
+#define OTGSC_INTSTS_B_SESSION_END (0x1<<20)
+#define OTGSC_INTSTS_1MS (0x1<<21)
+#define OTGSC_INTSTS_DATA_PULSING (0x1<<22)
+#define OTGSC_INTR_USB_ID_EN (0x1<<24)
+#define OTGSC_INTR_A_VBUS_VALID_EN (0x1<<25)
+#define OTGSC_INTR_A_SESSION_VALID_EN (0x1<<26)
+#define OTGSC_INTR_B_SESSION_VALID_EN (0x1<<27)
+#define OTGSC_INTR_B_SESSION_END_EN (0x1<<28)
+#define OTGSC_INTR_1MS_TIMER_EN (0x1<<29)
+#define OTGSC_INTR_DATA_PULSING_EN (0x1<<30)
+#define OTGSC_INTSTS_MASK (0x00ff0000)
+
+/* USB MODE Register Bit Masks */
+#define USB_MODE_CTRL_MODE_IDLE (0x0<<0)
+#define USB_MODE_CTRL_MODE_DEVICE (0x2<<0)
+#define USB_MODE_CTRL_MODE_HOST (0x3<<0)
+#define USB_MODE_CTRL_MODE_RSV (0x1<<0)
+#define USB_MODE_SETUP_LOCK_OFF (0x1<<3)
+#define USB_MODE_STREAM_DISABLE (0x1<<4)
+#define USB_MODE_ES (0x1<<2) /* (big) Endian Select */
+
+#define MPC8349_OTG_IRQ (38)
+#define CFG_IMMR_BASE (0xfe000000)
+#define MPC83xx_USB_DR_BASE (CFG_IMMR_BASE + 0x23000)
+
+/* control Register Bit Masks */
+#define USB_CTRL_IOENB (0x1<<2)
+#define USB_CTRL_ULPI_INT0EN (0x1<<0)
+
+/* BCSR5 */
+#define BCSR5_INT_USB (0x02)
+
+/* USB module clk cfg */
+#define SCCR_OFFS (0xA08)
+#define SCCR_USB_CLK_DISABLE (0x00000000) /* USB clk disable */
+#define SCCR_USB_MPHCM_11 (0x00c00000)
+#define SCCR_USB_MPHCM_01 (0x00400000)
+#define SCCR_USB_MPHCM_10 (0x00800000)
+#define SCCR_USB_DRCM_11 (0x00300000)
+#define SCCR_USB_DRCM_01 (0x00100000)
+#define SCCR_USB_DRCM_10 (0x00200000)
+
+#define SICRL_OFFS (0x114)
+#define SICRL_USB0 (0x40000000)
+#define SICRL_USB1 (0x20000000)
+
+#define SICRH_OFFS (0x118)
+#define SICRH_USB_UTMI (0x00020000)
+
+/* OTG interrupt enable bit masks */
+#define OTGSC_INTERRUPT_ENABLE_BITS_MASK \
+ (OTGSC_INTR_USB_ID_EN | \
+ OTGSC_INTR_1MS_TIMER_EN | \
+ OTGSC_INTR_A_VBUS_VALID_EN | \
+ OTGSC_INTR_A_SESSION_VALID_EN | \
+ OTGSC_INTR_B_SESSION_VALID_EN | \
+ OTGSC_INTR_B_SESSION_END_EN | \
+ OTGSC_INTR_DATA_PULSING_EN)
+
+/* OTG interrupt status bit masks */
+#define OTGSC_INTERRUPT_STATUS_BITS_MASK \
+ (OTGSC_INTSTS_USB_ID | \
+ OTGSC_INTR_1MS_TIMER_EN | \
+ OTGSC_INTSTS_A_VBUS_VALID | \
+ OTGSC_INTSTS_A_SESSION_VALID | \
+ OTGSC_INTSTS_B_SESSION_VALID | \
+ OTGSC_INTSTS_B_SESSION_END | \
+ OTGSC_INTSTS_DATA_PULSING)
+
+/*
+ * A-DEVICE timing constants
+ */
+
+/* Wait for VBUS Rise */
+#define TA_WAIT_VRISE (100) /* a_wait_vrise 100 ms, section: 6.6.5.1 */
+
+/* Wait for B-Connect */
+#define TA_WAIT_BCON (10000) /* a_wait_bcon > 1 sec, section: 6.6.5.2
+ * This is only used to get out of
+ * OTG_STATE_A_WAIT_BCON state if there was
+ * no connection for these many milliseconds
+ */
+
+/* A-Idle to B-Disconnect */
+/* It is necessary for this timer to be more than 750 ms because of a bug in OPT
+ * test 5.4 in which B OPT disconnects after 750 ms instead of 75ms as stated
+ * in the test description
+ */
+#define TA_AIDL_BDIS (5000) /* a_suspend minimum 200 ms, section: 6.6.5.3 */
+
+/* B-Idle to A-Disconnect */
+#define TA_BIDL_ADIS (12) /* 3 to 200 ms */
+
+/* B-device timing constants */
+
+
+/* Data-Line Pulse Time*/
+#define TB_DATA_PLS (10) /* b_srp_init,continue 5~10ms, section:5.3.3 */
+#define TB_DATA_PLS_MIN (5) /* minimum 5 ms */
+#define TB_DATA_PLS_MAX (10) /* maximum 10 ms */
+
+/* SRP Initiate Time */
+#define TB_SRP_INIT (100) /* b_srp_init,maximum 100 ms, section:5.3.8 */
+
+/* SRP Fail Time */
+#define TB_SRP_FAIL (7000) /* b_srp_init,Fail time 5~30s, section:6.8.2.2*/
+
+/* SRP result wait time */
+#define TB_SRP_WAIT (60)
+
+/* VBus time */
+#define TB_VBUS_PLS (30) /* time to keep vbus pulsing asserted */
+
+/* Discharge time */
+/* This time should be less than 10ms. It varies from system to system. */
+#define TB_VBUS_DSCHRG (8)
+
+/* A-SE0 to B-Reset */
+#define TB_ASE0_BRST (20) /* b_wait_acon, mini 3.125 ms,section:6.8.2.4 */
+
+/* A bus suspend timer before we can switch to b_wait_aconn */
+#define TB_A_SUSPEND (7)
+#define TB_BUS_RESUME (12)
+
+/* SE0 Time Before SRP */
+#define TB_SE0_SRP (2) /* b_idle,minimum 2 ms, section:5.3.2 */
+
+
+#define SET_OTG_STATE(otg_ptr, newstate) ((otg_ptr)->state = newstate)
+
+struct usb_dr_mmap {
+ /* Capability register */
+ u8 res1[256];
+ u16 caplength; /* Capability Register Length */
+ u16 hciversion; /* Host Controller Interface Version */
+ u32 hcsparams; /* Host Controller Structual Parameters */
+ u32 hccparams; /* Host Controller Capability Parameters */
+ u8 res2[20];
+ u32 dciversion; /* Device Controller Interface Version */
+ u32 dccparams; /* Device Controller Capability Parameters */
+ u8 res3[24];
+ /* Operation register */
+ u32 usbcmd; /* USB Command Register */
+ u32 usbsts; /* USB Status Register */
+ u32 usbintr; /* USB Interrupt Enable Register */
+ u32 frindex; /* Frame Index Register */
+ u8 res4[4];
+ u32 deviceaddr; /* Device Address */
+ u32 endpointlistaddr; /* Endpoint List Address Register */
+ u8 res5[4];
+ u32 burstsize; /* Master Interface Data Burst Size Register */
+ u32 txttfilltuning; /* Transmit FIFO Tuning Controls Register */
+ u8 res6[8];
+ u32 ulpiview; /* ULPI register access */
+ u8 res7[12];
+ u32 configflag; /* Configure Flag Register */
+ u32 portsc; /* Port 1 Status and Control Register */
+ u8 res8[28];
+ u32 otgsc; /* On-The-Go Status and Control */
+ u32 usbmode; /* USB Mode Register */
+ u32 endptsetupstat; /* Endpoint Setup Status Register */
+ u32 endpointprime; /* Endpoint Initialization Register */
+ u32 endptflush; /* Endpoint Flush Register */
+ u32 endptstatus; /* Endpoint Status Register */
+ u32 endptcomplete; /* Endpoint Complete Register */
+ u32 endptctrl[6]; /* Endpoint Control Registers */
+ u8 res9[552];
+ u32 snoop1;
+ u32 snoop2;
+ u32 age_cnt_thresh; /* Age Count Threshold Register */
+ u32 pri_ctrl; /* Priority Control Register */
+ u32 si_ctrl; /* System Interface Control Register */
+ u8 res10[236];
+ u32 control; /* General Purpose Control Register */
+};
+
+
+struct fsl_otg_timer {
+ unsigned long expires; /* Number of count increase to timeout */
+ unsigned long count; /* Tick counter */
+ void (*function)(unsigned long); /* Timeout function */
+ unsigned long data; /* Data passed to function */
+ struct list_head list;
+};
+
+static inline struct fsl_otg_timer *otg_timer_initializer
+(void (*function)(unsigned long), unsigned long expires, unsigned long data)
+{
+ struct fsl_otg_timer *timer;
+ timer = kmalloc(sizeof(struct fsl_otg_timer), GFP_KERNEL);
+ if (timer == NULL)
+ return NULL;
+ timer->function = function;
+ timer->expires = expires;
+ timer->data = data;
+ return timer;
+}
+
+struct fsl_otg {
+ struct otg_transceiver otg;
+ struct otg_fsm fsm;
+ struct usb_dr_mmap __iomem *dr_mem_map;
+ struct delayed_work otg_event;
+
+ /* used for usb host */
+ struct work_struct work_wq;
+ u8 host_working;
+
+ int irq;
+};
+
+struct fsl_otg_config {
+ u8 otg_port;
+};
+
+/*For SRP and HNP handle*/
+#define FSL_OTG_MAJOR 66
+#define FSL_OTG_NAME "fsl-usb2-otg"
+/*Command to OTG driver(ioctl)*/
+#define OTG_IOCTL_MAGIC FSL_OTG_MAJOR
+/*if otg work as host,it should return 1,otherwise it return 0*/
+#define GET_OTG_STATUS _IOR(OTG_IOCTL_MAGIC, 1, int)
+#define SET_A_SUSPEND_REQ _IOW(OTG_IOCTL_MAGIC, 2, int)
+#define SET_A_BUS_DROP _IOW(OTG_IOCTL_MAGIC, 3, int)
+#define SET_A_BUS_REQ _IOW(OTG_IOCTL_MAGIC, 4, int)
+#define SET_B_BUS_REQ _IOW(OTG_IOCTL_MAGIC, 5, int)
+#define GET_A_SUSPEND_REQ _IOR(OTG_IOCTL_MAGIC, 6, int)
+#define GET_A_BUS_DROP _IOR(OTG_IOCTL_MAGIC, 7, int)
+#define GET_A_BUS_REQ _IOR(OTG_IOCTL_MAGIC, 8, int)
+#define GET_B_BUS_REQ _IOR(OTG_IOCTL_MAGIC, 9, int)
+
+extern const char *state_string(enum usb_otg_state state);
+extern int otg_set_resources(struct resource *resources);
+/* prototype declaration */
+extern void fsl_otg_add_timer(void *timer);
+extern void fsl_otg_del_timer(void *timer);
--- /dev/null
+++ b/drivers/usb/otg/otg_fsm.c
@@ -0,0 +1,371 @@
+/* OTG Finite State Machine from OTG spec
+ *
+ * Copyright 2007-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * Author: Li Yang <LeoLi@freescale.com>
+ * Jerry Huang <Chang-Ming.Huang@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/usb/otg.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/usb.h>
+#include <linux/usb/gadget.h>
+
+#include <linux/types.h>
+#include "otg_fsm.h"
+
+
+/* Defined by device specific driver, for different timer implementation */
+extern void *a_wait_vrise_tmr, *a_wait_bcon_tmr, *a_aidl_bdis_tmr,
+ *b_ase0_brst_tmr, *b_se0_srp_tmr, *b_srp_fail_tmr, *a_wait_enum_tmr;
+
+const char *state_string(enum usb_otg_state state)
+{
+ switch (state) {
+ case OTG_STATE_A_IDLE: return "a_idle";
+ case OTG_STATE_A_WAIT_VRISE: return "a_wait_vrise";
+ case OTG_STATE_A_WAIT_BCON: return "a_wait_bcon";
+ case OTG_STATE_A_HOST: return "a_host";
+ case OTG_STATE_A_SUSPEND: return "a_suspend";
+ case OTG_STATE_A_PERIPHERAL: return "a_peripheral";
+ case OTG_STATE_A_WAIT_VFALL: return "a_wait_vfall";
+ case OTG_STATE_A_VBUS_ERR: return "a_vbus_err";
+ case OTG_STATE_B_IDLE: return "b_idle";
+ case OTG_STATE_B_SRP_INIT: return "b_srp_init";
+ case OTG_STATE_B_PERIPHERAL: return "b_peripheral";
+ case OTG_STATE_B_WAIT_ACON: return "b_wait_acon";
+ case OTG_STATE_B_HOST: return "b_host";
+ default: return "UNDEFINED";
+ }
+}
+
+/* Change USB protocol when there is a protocol change */
+static int otg_set_protocol(struct otg_fsm *fsm, int protocol)
+{
+ int ret = 0;
+
+ if (fsm->protocol != protocol) {
+ VDBG("Changing role fsm->protocol= %d; new protocol= %d\n",
+ fsm->protocol, protocol);
+ /* stop old protocol */
+ if (fsm->protocol == PROTO_HOST)
+ ret = fsm->ops->start_host(fsm, 0);
+ else if (fsm->protocol == PROTO_GADGET)
+ ret = fsm->ops->start_gadget(fsm, 0);
+ if (ret)
+ return ret;
+
+ /* start new protocol */
+ if (protocol == PROTO_HOST)
+ ret = fsm->ops->start_host(fsm, 1);
+ else if (protocol == PROTO_GADGET)
+ ret = fsm->ops->start_gadget(fsm, 1);
+ if (ret)
+ return ret;
+
+ fsm->protocol = protocol;
+ return 0;
+ }
+
+ return 0;
+}
+
+static int state_changed;
+
+/* Called when leaving a state. Do state clean up jobs here */
+void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
+{
+ switch (old_state) {
+ case OTG_STATE_B_IDLE:
+ otg_del_timer(fsm, b_se0_srp_tmr);
+ fsm->b_se0_srp = 0;
+ break;
+ case OTG_STATE_B_SRP_INIT:
+ fsm->b_srp_done = 0;
+ break;
+ case OTG_STATE_B_PERIPHERAL:
+ break;
+ case OTG_STATE_B_WAIT_ACON:
+ otg_del_timer(fsm, b_ase0_brst_tmr);
+ fsm->b_ase0_brst_tmout = 0;
+ break;
+ case OTG_STATE_B_HOST:
+ break;
+ case OTG_STATE_A_IDLE:
+ break;
+ case OTG_STATE_A_WAIT_VRISE:
+ otg_del_timer(fsm, a_wait_vrise_tmr);
+ fsm->a_wait_vrise_tmout = 0;
+ break;
+ case OTG_STATE_A_WAIT_BCON:
+ otg_del_timer(fsm, a_wait_bcon_tmr);
+ fsm->a_wait_bcon_tmout = 0;
+ break;
+ case OTG_STATE_A_HOST:
+ otg_del_timer(fsm, a_wait_enum_tmr);
+ break;
+ case OTG_STATE_A_SUSPEND:
+ otg_del_timer(fsm, a_aidl_bdis_tmr);
+ fsm->a_aidl_bdis_tmout = 0;
+ fsm->a_suspend_req = 0;
+ break;
+ case OTG_STATE_A_PERIPHERAL:
+ break;
+ case OTG_STATE_A_WAIT_VFALL:
+ otg_del_timer(fsm, a_wait_vrise_tmr);
+ break;
+ case OTG_STATE_A_VBUS_ERR:
+ break;
+ default:
+ break;
+ }
+}
+
+/* Called when entering a state */
+int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
+{
+ state_changed = 1;
+ if (fsm->transceiver->state == new_state)
+ return 0;
+ VDBG("Set state: %s\n", state_string(new_state));
+ otg_leave_state(fsm, fsm->transceiver->state);
+ switch (new_state) {
+ case OTG_STATE_B_IDLE:
+ otg_drv_vbus(fsm, 0);
+ otg_chrg_vbus(fsm, 0);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_UNDEF);
+ otg_add_timer(fsm, b_se0_srp_tmr);
+ break;
+ case OTG_STATE_B_SRP_INIT:
+ otg_start_pulse(fsm);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_UNDEF);
+ otg_add_timer(fsm, b_srp_fail_tmr);
+ break;
+ case OTG_STATE_B_PERIPHERAL:
+ otg_chrg_vbus(fsm, 0);
+ otg_loc_conn(fsm, 1);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_GADGET);
+ break;
+ case OTG_STATE_B_WAIT_ACON:
+ otg_chrg_vbus(fsm, 0);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_HOST);
+ otg_add_timer(fsm, b_ase0_brst_tmr);
+ fsm->a_bus_suspend = 0;
+ break;
+ case OTG_STATE_B_HOST:
+ otg_chrg_vbus(fsm, 0);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 1);
+ otg_set_protocol(fsm, PROTO_HOST);
+ usb_bus_start_enum(fsm->transceiver->host,
+ fsm->transceiver->host->otg_port);
+ break;
+ case OTG_STATE_A_IDLE:
+ otg_drv_vbus(fsm, 0);
+ otg_chrg_vbus(fsm, 0);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_HOST);
+ break;
+ case OTG_STATE_A_WAIT_VRISE:
+ otg_drv_vbus(fsm, 1);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_HOST);
+ otg_add_timer(fsm, a_wait_vrise_tmr);
+ break;
+ case OTG_STATE_A_WAIT_BCON:
+ otg_drv_vbus(fsm, 1);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_HOST);
+ otg_add_timer(fsm, a_wait_bcon_tmr);
+ break;
+ case OTG_STATE_A_HOST:
+ otg_drv_vbus(fsm, 1);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 1);
+ otg_set_protocol(fsm, PROTO_HOST);
+ /* When HNP is triggered while a_bus_req = 0, a_host will
+ * suspend too fast to complete a_set_b_hnp_en */
+ if (!fsm->a_bus_req || fsm->a_suspend_req)
+ otg_add_timer(fsm, a_wait_enum_tmr);
+ break;
+ case OTG_STATE_A_SUSPEND:
+ otg_drv_vbus(fsm, 1);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_HOST);
+ otg_add_timer(fsm, a_aidl_bdis_tmr);
+
+ break;
+ case OTG_STATE_A_PERIPHERAL:
+ otg_loc_conn(fsm, 1);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_GADGET);
+ otg_drv_vbus(fsm, 1);
+ break;
+ case OTG_STATE_A_WAIT_VFALL:
+ otg_drv_vbus(fsm, 0);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_HOST);
+ break;
+ case OTG_STATE_A_VBUS_ERR:
+ otg_drv_vbus(fsm, 0);
+ otg_loc_conn(fsm, 0);
+ otg_loc_sof(fsm, 0);
+ otg_set_protocol(fsm, PROTO_UNDEF);
+ break;
+ default:
+ break;
+ }
+
+ fsm->transceiver->state = new_state;
+ return 0;
+}
+
+/* State change judgement */
+int otg_statemachine(struct otg_fsm *fsm)
+{
+ enum usb_otg_state state;
+ unsigned long flags;
+
+ spin_lock_irqsave(&fsm->lock, flags);
+
+ state = fsm->transceiver->state;
+ state_changed = 0;
+ /* State machine state change judgement */
+
+ switch (state) {
+ case OTG_STATE_UNDEFINED:
+ VDBG("fsm->id = %d\n", fsm->id);
+ if (fsm->id)
+ otg_set_state(fsm, OTG_STATE_B_IDLE);
+ else
+ otg_set_state(fsm, OTG_STATE_A_IDLE);
+ break;
+ case OTG_STATE_B_IDLE:
+ if (!fsm->id)
+ otg_set_state(fsm, OTG_STATE_A_IDLE);
+ else if (fsm->b_sess_vld && fsm->transceiver->gadget)
+ otg_set_state(fsm, OTG_STATE_B_PERIPHERAL);
+ else if (fsm->b_bus_req && fsm->b_sess_end && fsm->b_se0_srp)
+ otg_set_state(fsm, OTG_STATE_B_SRP_INIT);
+ break;
+ case OTG_STATE_B_SRP_INIT:
+ if (!fsm->id || fsm->b_srp_done)
+ otg_set_state(fsm, OTG_STATE_B_IDLE);
+ break;
+ case OTG_STATE_B_PERIPHERAL:
+ if (!fsm->id || !fsm->b_sess_vld)
+ otg_set_state(fsm, OTG_STATE_B_IDLE);
+ else if (fsm->b_bus_req && fsm->transceiver->
+ gadget->b_hnp_enable && fsm->a_bus_suspend)
+ otg_set_state(fsm, OTG_STATE_B_WAIT_ACON);
+ break;
+ case OTG_STATE_B_WAIT_ACON:
+ if (fsm->a_conn)
+ otg_set_state(fsm, OTG_STATE_B_HOST);
+ else if (!fsm->id || !fsm->b_sess_vld)
+ otg_set_state(fsm, OTG_STATE_B_IDLE);
+ else if (fsm->a_bus_resume || fsm->b_ase0_brst_tmout) {
+ fsm->b_ase0_brst_tmout = 0;
+ otg_set_state(fsm, OTG_STATE_B_PERIPHERAL);
+ }
+ break;
+ case OTG_STATE_B_HOST:
+ if (!fsm->id || !fsm->b_sess_vld)
+ otg_set_state(fsm, OTG_STATE_B_IDLE);
+ else if (!fsm->b_bus_req || !fsm->a_conn)
+ otg_set_state(fsm, OTG_STATE_B_PERIPHERAL);
+ break;
+ case OTG_STATE_A_IDLE:
+ if (fsm->id)
+ otg_set_state(fsm, OTG_STATE_B_IDLE);
+ else if (!fsm->a_bus_drop && (fsm->a_bus_req || fsm->a_srp_det))
+ otg_set_state(fsm, OTG_STATE_A_WAIT_VRISE);
+ break;
+ case OTG_STATE_A_WAIT_VRISE:
+ if (fsm->id || fsm->a_bus_drop || fsm->a_vbus_vld ||
+ fsm->a_wait_vrise_tmout) {
+ otg_set_state(fsm, OTG_STATE_A_WAIT_BCON);
+ }
+ break;
+ case OTG_STATE_A_WAIT_BCON:
+ if (!fsm->a_vbus_vld)
+ otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
+ else if (fsm->b_conn)
+ otg_set_state(fsm, OTG_STATE_A_HOST);
+ else if (fsm->id | fsm->a_bus_drop | fsm->a_wait_bcon_tmout)
+ otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
+ break;
+ case OTG_STATE_A_HOST:
+ if ((!fsm->a_bus_req || fsm->a_suspend_req) &&
+ fsm->transceiver->host->b_hnp_enable)
+ otg_set_state(fsm, OTG_STATE_A_SUSPEND);
+ else if (fsm->id || !fsm->b_conn || fsm->a_bus_drop)
+ otg_set_state(fsm, OTG_STATE_A_WAIT_BCON);
+ else if (!fsm->a_vbus_vld)
+ otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
+ break;
+ case OTG_STATE_A_SUSPEND:
+ if (!fsm->b_conn && fsm->transceiver->host->b_hnp_enable)
+ otg_set_state(fsm, OTG_STATE_A_PERIPHERAL);
+ else if (!fsm->b_conn && !fsm->transceiver->host->b_hnp_enable)
+ otg_set_state(fsm, OTG_STATE_A_WAIT_BCON);
+ else if (fsm->a_bus_req || fsm->b_bus_resume)
+ otg_set_state(fsm, OTG_STATE_A_HOST);
+ else if (fsm->id || fsm->a_bus_drop || fsm->a_aidl_bdis_tmout)
+ otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
+ else if (!fsm->a_vbus_vld)
+ otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
+ break;
+ case OTG_STATE_A_PERIPHERAL:
+ if (fsm->id || fsm->a_bus_drop)
+ otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
+ else if (fsm->b_bus_suspend)
+ otg_set_state(fsm, OTG_STATE_A_WAIT_BCON);
+ else if (!fsm->a_vbus_vld)
+ otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
+ break;
+ case OTG_STATE_A_WAIT_VFALL:
+ if (fsm->id || fsm->a_bus_req || (!fsm->a_sess_vld &&
+ !fsm->b_conn))
+ otg_set_state(fsm, OTG_STATE_A_IDLE);
+ break;
+ case OTG_STATE_A_VBUS_ERR:
+ if (fsm->id || fsm->a_bus_drop || fsm->a_clr_err)
+ otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
+ break;
+ default:
+ break;
+ }
+ spin_unlock_irqrestore(&fsm->lock, flags);
+
+ /*VDBG("quit statemachine, changed = %d\n", state_changed); */
+ return state_changed;
+}
--- /dev/null
+++ b/drivers/usb/otg/otg_fsm.h
@@ -0,0 +1,151 @@
+/* Copyright 2006-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if 0
+#define DEBUG 1
+#define VERBOSE 1
+#endif
+
+#ifdef DEBUG
+#define DBG(fmt, args...) printk(KERN_DEBUG "[%s] " fmt , \
+ __func__, ## args)
+#else
+#define DBG(fmt, args...) do {} while (0)
+#endif
+
+#ifdef VERBOSE
+#define VDBG DBG
+#else
+#define VDBG(stuff...) do {} while (0)
+#endif
+
+#ifdef VERBOSE
+#define MPC_LOC printk("Current Location [%s]:[%d]\n", __FILE__, __LINE__)
+#else
+#define MPC_LOC do {} while (0)
+#endif
+
+#define PROTO_UNDEF (0)
+#define PROTO_HOST (1)
+#define PROTO_GADGET (2)
+
+/* OTG state machine according to the OTG spec */
+struct otg_fsm {
+ /* Input */
+ int a_bus_resume;
+ int a_bus_suspend;
+ int a_conn;
+ int a_sess_vld;
+ int a_srp_det;
+ int a_vbus_vld;
+ int b_bus_resume;
+ int b_bus_suspend;
+ int b_conn;
+ int b_se0_srp;
+ int b_sess_end;
+ int b_sess_vld;
+ int id;
+
+ /* Internal variables */
+ int a_set_b_hnp_en;
+ int b_srp_done;
+ int b_hnp_enable;
+
+ /* Timeout indicator for timers */
+ int a_wait_vrise_tmout;
+ int a_wait_bcon_tmout;
+ int a_aidl_bdis_tmout;
+ int b_ase0_brst_tmout;
+
+ /* Informative variables */
+ int a_bus_drop;
+ int a_bus_req;
+ int a_clr_err;
+ int a_suspend_req;
+ int b_bus_req;
+
+ /* Output */
+ int drv_vbus;
+ int loc_conn;
+ int loc_sof;
+
+ struct otg_fsm_ops *ops;
+ struct otg_transceiver *transceiver;
+
+ /* Current usb protocol used: 0:undefine; 1:host; 2:client */
+ int protocol;
+ spinlock_t lock;
+};
+
+struct otg_fsm_ops {
+ void (*chrg_vbus)(int on);
+ void (*drv_vbus)(int on);
+ void (*loc_conn)(int on);
+ void (*loc_sof)(int on);
+ void (*start_pulse)(void);
+ void (*add_timer)(void *timer);
+ void (*del_timer)(void *timer);
+ int (*start_host)(struct otg_fsm *fsm, int on);
+ int (*start_gadget)(struct otg_fsm *fsm, int on);
+};
+
+
+static inline void otg_chrg_vbus(struct otg_fsm *fsm, int on)
+{
+ fsm->ops->chrg_vbus(on);
+}
+
+static inline void otg_drv_vbus(struct otg_fsm *fsm, int on)
+{
+ if (fsm->drv_vbus != on) {
+ fsm->drv_vbus = on;
+ fsm->ops->drv_vbus(on);
+ }
+}
+
+static inline void otg_loc_conn(struct otg_fsm *fsm, int on)
+{
+ if (fsm->loc_conn != on) {
+ fsm->loc_conn = on;
+ fsm->ops->loc_conn(on);
+ }
+}
+
+static inline void otg_loc_sof(struct otg_fsm *fsm, int on)
+{
+ if (fsm->loc_sof != on) {
+ fsm->loc_sof = on;
+ fsm->ops->loc_sof(on);
+ }
+}
+
+static inline void otg_start_pulse(struct otg_fsm *fsm)
+{
+ fsm->ops->start_pulse();
+}
+
+static inline void otg_add_timer(struct otg_fsm *fsm, void *timer)
+{
+ fsm->ops->add_timer(timer);
+}
+
+static inline void otg_del_timer(struct otg_fsm *fsm, void *timer)
+{
+ fsm->ops->del_timer(timer);
+}
+
+int otg_statemachine(struct otg_fsm *fsm);
--- /dev/null
+++ b/drivers/usb/otg/usb.c
@@ -0,0 +1,76 @@
+/* Copyright 2007-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * Author: Li Yang <LeoLi@freescale.com>
+ * Jerry Huang <Chang-Ming.Huang@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/usb/otg.h>
+
+#include <linux/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+
+
+static struct otg_transceiver *transceiver;
+static struct resource *otg_resources;
+
+/*
+ * otg_get_transceiver - find the (single) OTG transceiver driver
+ *
+ * Returns the transceiver driver, after getting a refcount to it; or
+ * null if there is no such transceiver. The caller is responsible for
+ * releasing that count.
+ */
+struct otg_transceiver *otg_get_transceiver(void)
+{
+ pr_debug("%s transceiver=0x%p\n", __func__, transceiver);
+ if (transceiver)
+ get_device(transceiver->dev);
+
+ return transceiver;
+}
+EXPORT_SYMBOL(otg_get_transceiver);
+
+int otg_set_transceiver(struct otg_transceiver *otg)
+{
+ if (transceiver && otg)
+ return -EBUSY;
+
+ transceiver = otg;
+
+ return 0;
+}
+EXPORT_SYMBOL(otg_set_transceiver);
+
+struct resource *otg_get_resources(void)
+{
+ return otg_resources;
+}
+EXPORT_SYMBOL(otg_get_resources);
+
+int otg_set_resources(struct resource *resources)
+{
+ otg_resources = resources;
+ return 0;
+}
+EXPORT_SYMBOL(otg_set_resources);
--- a/include/linux/fsl_devices.h
+++ b/include/linux/fsl_devices.h
@@ -72,6 +72,18 @@ struct fsl_usb2_platform_data {
void (*exit)(struct platform_device *);
void __iomem *regs; /* ioremap'd register base */
struct clk *clk;
+#ifdef CONFIG_COLDFIRE
+ u32 xcvr_type; /* PORTSC_PTS_* */
+ char *name; /* pretty print */
+ char *transceiver; /* transceiver name */
+ unsigned power_budget; /* for hcd->power_budget */
+ struct platform_device *pdev;
+ struct fsl_xcvr_ops *xcvr_ops;
+
+ int (*gpio_usb_active) (void);
+ void (*gpio_usb_inactive) (void);
+
+#endif
unsigned big_endian_mmio:1;
unsigned big_endian_desc:1;
unsigned es:1; /* need USBMODE:ES */
@@ -79,6 +91,20 @@ struct fsl_usb2_platform_data {
unsigned have_sysif_regs:1;
unsigned invert_drvvbus:1;
unsigned invert_pwr_fault:1;
+#ifdef CONFIG_COLDFIRE
+ unsigned suspended:1;
+ unsigned already_suspended:1;
+#endif
+ /* register save area for suspend/resume */
+ u32 pm_command;
+ u32 pm_status;
+ u32 pm_intr_enable;
+ u32 pm_frame_index;
+ u32 pm_segment;
+ u32 pm_frame_list;
+ u32 pm_async_next;
+ u32 pm_configured_flag;
+ u32 pm_portsc;
};
/* Flags in fsl_usb2_mph_platform_data */
--- /dev/null
+++ b/include/linux/usb/fsl_usb2.h
@@ -0,0 +1,410 @@
+/*
+ * Copyright 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * Freescale USB device/endpoint management registers
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#ifndef __FSL_USB2_H
+#define __FSL_USB2_H
+
+
+ /* USB DR device mode registers (Little Endian) */
+struct fsl_usb_device_regs {
+ /* Capability register */
+ u32 id;
+ u32 res1[63];
+ u16 caplength; /* Capability Register Length */
+ u16 hciversion; /* Host Controller Interface Version */
+ u32 hcsparams; /* Host Controller Structual Parameters */
+ u32 hccparams; /* Host Controller Capability Parameters */
+ u32 res2[5];
+ u32 dciversion; /* Device Controller Interface Version */
+ u32 dccparams; /* Device Controller Capability Parameters */
+ u32 res3[6];
+ /* Operation register */
+ u32 usbcmd; /* USB Command Register */
+ u32 usbsts; /* USB Status Register */
+ u32 usbintr; /* USB Interrupt Enable Register */
+ u32 frindex; /* Frame Index Register */
+ u32 res4;
+ u32 deviceaddr; /* Device Address */
+ u32 endpointlistaddr; /* Endpoint List Address Register */
+ u32 res5;
+ u32 burstsize; /* Master Interface Data Burst Size Register */
+ u32 txttfilltuning; /* Transmit FIFO Tuning Controls Register */
+ u32 res6[2];
+ u32 ulpiview;
+ u32 res7[3];
+ u32 configflag; /* Configure Flag Register */
+ u32 portsc1; /* Port 1 Status and Control Register */
+ u32 res8[7];
+ u32 otgsc; /* On-The-Go Status and Control */
+ u32 usbmode; /* USB Mode Register */
+ u32 endptsetupstat; /* Endpoint Setup Status Register */
+ u32 endpointprime; /* Endpoint Initialization Register */
+ u32 endptflush; /* Endpoint Flush Register */
+ u32 endptstatus; /* Endpoint Status Register */
+ u32 endptcomplete; /* Endpoint Complete Register */
+ /* DCCPARAMS:DEN has the real number of device endpoints. */
+ u32 endptctrl[16]; /* Endpoint Control Registers */
+};
+
+ /* USB DR host mode registers (Little Endian) */
+struct fsl_usb_host_regs {
+ /* Capability register */
+ u32 id;
+ u32 res1[63];
+ u16 caplength; /* Capability Register Length */
+ u16 hciversion; /* Host Controller Interface Version */
+ u32 hcsparams; /* Host Controller Structual Parameters */
+ u32 hccparams; /* Host Controller Capability Parameters */
+ u32 res2[5];
+ u32 dciversion; /* Device Controller Interface Version */
+ u32 dccparams; /* Device Controller Capability Parameters */
+ u32 res3[6];
+ /* Operation register */
+ u32 usbcmd; /* USB Command Register */
+ u32 usbsts; /* USB Status Register */
+ u32 usbintr; /* USB Interrupt Enable Register */
+ u32 frindex; /* Frame Index Register */
+ u32 res4;
+ u32 periodiclistbase; /* Periodic Frame List Base Address Register */
+ u32 asynclistaddr; /* Current Asynchronous List Address Register */
+ u32 res5;
+ u32 burstsize; /* Master Interface Data Burst Size Register */
+ u32 txttfilltuning; /* Transmit FIFO Tuning Controls Register */
+ u32 res6[2];
+ u32 ulpiview;
+ u32 res7[3];
+ u32 configflag; /* Configure Flag Register */
+ u32 portsc1; /* Port 1 Status and Control Register */
+ u32 res8[7];
+ u32 otgsc; /* On-The-Go Status and Control */
+ u32 usbmode; /* USB Mode Register */
+ u32 endptsetupstat; /* Endpoint Setup Status Register */
+ u32 endpointprime; /* Endpoint Initialization Register */
+ u32 endptflush; /* Endpoint Flush Register */
+ u32 endptstatus; /* Endpoint Status Register */
+ u32 endptcomplete; /* Endpoint Complete Register */
+ /* DCCPARAMS:DEN has the real number of device endpoints. */
+ u32 endptctrl[16]; /* Endpoint Control Registers */
+};
+
+ /* non-EHCI USB system interface registers (Big Endian) */
+struct usb_sys_interface {
+ u32 snoop1;
+ u32 snoop2;
+ u32 age_cnt_thresh; /* Age Count Threshold Register */
+ u32 pri_ctrl; /* Priority Control Register */
+ u32 si_ctrl; /* System Interface Control Register */
+ u32 res[59];
+ u32 control; /* General Purpose Control Register */
+};
+
+/* ep0 transfer state */
+#define WAIT_FOR_SETUP 0
+#define DATA_STATE_XMIT 1
+#define DATA_STATE_NEED_ZLP 2
+#define WAIT_FOR_OUT_STATUS 3
+#define DATA_STATE_RECV 4
+
+/* Frame Index Register Bit Masks */
+#define USB_FRINDEX_MASKS 0x3fff
+
+
+
+/* USBCMD Register Bit Masks */
+#define USB_CMD_RUN_STOP 0x00000001
+#define USB_CMD_CTRL_RESET 0x00000002
+#define USB_CMD_PERIODIC_SCHEDULE_EN 0x00000010
+#define USB_CMD_ASYNC_SCHEDULE_EN 0x00000020
+#define USB_CMD_INT_AA_DOORBELL 0x00000040
+#define USB_CMD_ASP 0x00000300
+#define USB_CMD_ASYNC_SCH_PARK_EN 0x00000800
+#define USB_CMD_SUTW 0x00002000
+#define USB_CMD_ATDTW 0x00004000
+#define USB_CMD_ITC 0x00FF0000
+
+/* bit 15,3,2 are frame list size */
+#define USB_CMD_FRAME_SIZE_1024 0x00000000
+#define USB_CMD_FRAME_SIZE_512 0x00000004
+#define USB_CMD_FRAME_SIZE_256 0x00000008
+#define USB_CMD_FRAME_SIZE_128 0x0000000C
+#define USB_CMD_FRAME_SIZE_64 0x00008000
+#define USB_CMD_FRAME_SIZE_32 0x00008004
+#define USB_CMD_FRAME_SIZE_16 0x00008008
+#define USB_CMD_FRAME_SIZE_8 0x0000800C
+
+/* bit 9-8 are async schedule park mode count */
+#define USB_CMD_ASP_00 0x00000000
+#define USB_CMD_ASP_01 0x00000100
+#define USB_CMD_ASP_10 0x00000200
+#define USB_CMD_ASP_11 0x00000300
+#define USB_CMD_ASP_BIT_POS 8
+
+/* bit 23-16 are interrupt threshold control */
+#define USB_CMD_ITC_NO_THRESHOLD 0x00000000
+#define USB_CMD_ITC_1_MICRO_FRM 0x00010000
+#define USB_CMD_ITC_2_MICRO_FRM 0x00020000
+#define USB_CMD_ITC_4_MICRO_FRM 0x00040000
+#define USB_CMD_ITC_8_MICRO_FRM 0x00080000
+#define USB_CMD_ITC_16_MICRO_FRM 0x00100000
+#define USB_CMD_ITC_32_MICRO_FRM 0x00200000
+#define USB_CMD_ITC_64_MICRO_FRM 0x00400000
+#define USB_CMD_ITC_BIT_POS 16
+
+
+
+
+/* USB STS Register Bit Masks */
+#define USB_STS_INT 0x00000001
+#define USB_STS_ERR 0x00000002
+#define USB_STS_PORT_CHANGE 0x00000004
+#define USB_STS_FRM_LST_ROLL 0x00000008
+#define USB_STS_SYS_ERR 0x00000010
+#define USB_STS_IAA 0x00000020
+#define USB_STS_RESET 0x00000040
+#define USB_STS_SOF 0x00000080
+#define USB_STS_SUSPEND 0x00000100
+#define USB_STS_HC_HALTED 0x00001000
+#define USB_STS_RCL 0x00002000
+#define USB_STS_PERIODIC_SCHEDULE 0x00004000
+#define USB_STS_ASYNC_SCHEDULE 0x00008000
+
+/* USB INTR Register Bit Masks */
+#define USB_INTR_INT_EN 0x00000001
+#define USB_INTR_ERR_INT_EN 0x00000002
+#define USB_INTR_PTC_DETECT_EN 0x00000004
+#define USB_INTR_FRM_LST_ROLL_EN 0x00000008
+#define USB_INTR_SYS_ERR_EN 0x00000010
+#define USB_INTR_ASYN_ADV_EN 0x00000020
+#define USB_INTR_RESET_EN 0x00000040
+#define USB_INTR_SOF_EN 0x00000080
+#define USB_INTR_DEVICE_SUSPEND 0x00000100
+
+/* Device Address bit masks */
+#define USB_DEVICE_ADDRESS_MASK 0xFE000000
+#define USB_DEVICE_ADDRESS_BIT_POS 25
+
+/* endpoint list address bit masks */
+#define USB_EP_LIST_ADDRESS_MASK 0xfffff800
+
+
+/* x_PORTSCx */
+/* bit 31-30 are port transceiver select */
+#define PORTSCX_PTS_MASK (3 << 30) /* parallel xcvr select mask */
+#define PORTSCX_PHY_TYPE_SEL PORTSCX_PTS_MASK
+#define PORTSCX_PTS_UTMI (0 << 30) /* UTMI/UTMI+ */
+#define PORTSCX_PTS_PHILIPS (1 << 30) /* Philips classic */
+#define PORTSCX_PTS_ULPI (2 << 30) /* ULPI */
+#define PORTSCX_PTS_SERIAL (3 << 30) /* serial */
+#define PORTSCX_PTS_FSLS PORTSCX_PTS_SERIAL
+#define PORTSCX_PTS_ONCHIP PORTSCX_PTS_FSLS
+
+#define PORTSCX_STS (1 << 29) /* serial xcvr select */
+
+/* bit 28 is parallel transceiver width for UTMI interface */
+#define PORTSCX_PTW_8BIT (0 << 28) /* 8 bit parallel xcvr */
+#define PORTSCX_PTW_16BIT (1 << 28) /* 16 bi parallel xcvr */
+
+/* bit 27-26 are port speed */
+#define PORTSCX_PORT_SPEED_FULL (0 << 26)
+#define PORTSCX_PORT_SPEED_LOW (1 << 26)
+#define PORTSCX_PORT_SPEED_HIGH (2 << 26)
+#define PORTSCX_PORT_SPEED_UNDEF (3 << 26)
+#define PORTSCX_PORT_SPEED_MASK (3 << 26)
+
+/* phy low pwr suspend/clk disable */
+#define PORTSCX_PHY_LOW_POWER_SPD (1 << 23)
+
+/* bit 19-16 are port test control */
+#define PORTSCX_PTC_DISABLE (0 << 16)
+#define PORTSCX_PTC_JSTATE (1 << 16)
+#define PORTSCX_PTC_KSTATE (2 << 16)
+#define PORTSCX_PTC_SEQNAK (3 << 16) /* SE0 (host)/NAK (device)*/
+#define PORTSCX_PTC_PACKET (4 << 16)
+#define PORTSCX_PTC_FORCE_EN_HS (5 << 16)
+#define PORTSCX_PTC_FORCE_EN_FS (6 << 16)
+#define PORTSCX_PTC_FORCE_EN_LS (7 << 16)
+
+
+/* bit 15-14 are port indicator control */
+#define PORTSCX_PIC_OFF (0 << 14)
+#define PORTSCX_PIC_AMBER (1 << 14)
+#define PORTSCX_PIC_GREEN (2 << 14)
+#define PORTSCX_PIC_UNDEF (3 << 14)
+
+#define PORTSCX_PORT_POWER (1 << 12) /* port power */
+
+/* bit 11-10 are line status */
+#define PORTSCX_LS_MASK (3 << 10) /* Line State mask */
+#define PORTSCX_LS_SE0 (0 << 10) /* SE0 */
+#define PORTSCX_LS_K_STATE (1 << 10) /* K-state */
+#define PORTSCX_LS_J_STATE (2 << 10) /* J-state */
+
+#define PORTSCX_PORT_RESET (1 << 8) /* Port reset */
+#define PORTSCX_PORT_SUSPEND (1 << 7) /* Suspend */
+#define PORTSCX_PORT_FORCE_RESUME (1 << 6) /* Force port resume */
+#define PORTSCX_OVER_CURRENT_CHG (1 << 5) /* over current change */
+#define PORTSCX_OVER_CURRENT_ACT (1 << 4) /* over currrent active */
+#define PORTSCX_PORT_EN_DIS_CHANGE (1 << 3) /* port {en,dis}able change*/
+#define PORTSCX_PORT_ENABLE (1 << 2) /* port enabled */
+#define PORTSCX_CONNECT_STATUS_CHANGE (1 << 1) /* connect status change */
+#define PORTSCX_CURRENT_CONNECT_STATUS (1 << 0) /* current connect status */
+
+#define PORTSCX_W1C_BITS \
+ (PORTSCX_CONNECT_STATUS_CHANGE | \
+ PORTSCX_PORT_EN_DIS_CHANGE | \
+ PORTSCX_OVER_CURRENT_CHG)
+
+
+
+/* UOG_OTGSC Register Bits */
+/* control bits: */
+#define OTGSC_CTRL_VBUS_DISCHARGE (1 << 0)
+#define OTGSC_CTRL_VBUS_CHARGE (1 << 1)
+#define OTGSC_CTRL_OTG_TERM (1 << 3)/* controls DM pulldown */
+#define OTGSC_CTRL_DATA_PULSING (1 << 4)
+#define OTGSC_CTRL_USB_ID_PU (1 << 5) /* enable ID pullup */
+/* current status: (R/O) */
+#define OTGSC_STS_USB_ID (1 << 8)/* 0=A-device 1=B-device */
+#define OTGSC_STS_A_VBUS_VALID (1 << 9)
+#define OTGSC_STS_A_SESSION_VALID (1 << 10)
+#define OTGSC_STS_B_SESSION_VALID (1 << 11)
+#define OTGSC_STS_B_SESSION_END (1 << 12)
+#define OTGSC_STS_1ms_TIMER (1 << 13)
+#define OTGSC_STS_DATA_PULSE (1 << 14)
+/* interrupt status: (write to clear) */
+#define OTGSC_INTSTS_MASK (0x7f << 16)
+#define OTGSC_INTSTS_USB_ID (1 << 16)
+#define OTGSC_INTSTS_A_VBUS_VALID (1 << 17)
+#define OTGSC_INTSTS_A_SESSION_VALID (1 << 18)
+#define OTGSC_INTSTS_B_SESSION_VALID (1 << 19)
+#define OTGSC_INTSTS_B_SESSION_END (1 << 20)
+#define OTGSC_INTSTS_1MS_TIMER (1 << 21)
+#define OTGSC_INTSTS_DATA_PULSE (1 << 22)
+/* interrupt enables: */
+#define OTGSC_IE_MASK (0x7f << 24)
+#define OTGSC_IE_USB_ID (1 << 24)
+#define OTGSC_IE_A_VBUS_VALID (1 << 25)
+#define OTGSC_IE_A_SESSION_VALID (1 << 26)
+#define OTGSC_IE_B_SESSION_VALID (1 << 27)
+#define OTGSC_IE_B_SESSION_END (1 << 28)
+#define OTGSC_IE_1ms_TIMER (1 << 29)
+#define OTGSC_IE_DATA_PULSE (1 << 30)
+
+#if 1 /* DDD FIXME these here for compatibility between my names and Leo's */
+/* OTG interrupt enable bit masks */
+#define OTGSC_INTERRUPT_ENABLE_BITS_MASK OTGSC_IE_MASK
+
+/* OTG interrupt status bit masks */
+#define OTGSC_INTERRUPT_STATUS_BITS_MASK OTGSC_INTSTS_MASK
+#endif
+
+
+
+/* x_USBMODE */
+#undef USBMODE_SDIS /* defined as bit 3 in drivers/usb/host/ehci.h */
+#define USBMODE_SDIS (1 << 4) /* stream disable mode */
+#define USBMODE_SLOM (1 << 3) /* setup lockout mode */
+#define USBMODE_ES (1 << 2) /* (big) endian select */
+#define USBMODE_CM_MASK (3 << 0) /* controller mode mask */
+#define USBMODE_CM_HOST (3 << 0) /* host */
+#define USBMODE_CM_DEVICE (2 << 0) /* device */
+
+/* DDD for compatibility for now */
+#define USB_MODE_CTRL_MODE_IDLE USBMODE_CM_IDLE
+#define USB_MODE_CTRL_MODE_DEVICE USBMODE_CM_DEVICE
+#define USB_MODE_CTRL_MODE_HOST USBMODE_CM_HOST
+#define USB_MODE_SETUP_LOCK_OFF USBMODE_SLOM
+#define USB_MODE_STREAM_DISABLE USBMODE_SDIS
+
+
+/* ULPIVIEW register bits */
+#define ULPIVW_WU (1 << 31) /* Wakeup */
+#define ULPIVW_RUN (1 << 30) /* read/write run */
+#define ULPIVW_WRITE (1 << 29) /* 0=read 1=write */
+#define ULPIVW_SS (1 << 27) /* SyncState */
+#define ULPIVW_PORT_MASK 0x07 /* Port field */
+#define ULPIVW_PORT_SHIFT 24
+#define ULPIVW_ADDR_MASK 0xFF /* data address field */
+#define ULPIVW_ADDR_SHIFT 16
+#define ULPIVW_RDATA_MASK 0xFF /* read data field */
+#define ULPIVW_RDATA_SHIFT 8
+#define ULPIVW_WDATA_MASK 0xFF /* write data field */
+#define ULPIVW_WDATA_SHIFT 0
+
+
+/* Endpoint Flush Register */
+#define EPFLUSH_TX_OFFSET 0x00010000
+#define EPFLUSH_RX_OFFSET 0x00000000
+
+/* Endpoint Setup Status bit masks */
+#define EP_SETUP_STATUS_MASK 0x0000003F
+#define EP_SETUP_STATUS_EP0 0x00000001
+
+/* ENDPOINTCTRLx Register Bit Masks */
+#define EPCTRL_TX_ENABLE 0x00800000
+#define EPCTRL_TX_DATA_TOGGLE_RST 0x00400000 /* Not EP0 */
+#define EPCTRL_TX_DATA_TOGGLE_INH 0x00200000 /* Not EP0 */
+#define EPCTRL_TX_TYPE 0x000C0000
+#define EPCTRL_TX_DATA_SOURCE 0x00020000 /* Not EP0 */
+#define EPCTRL_TX_EP_STALL 0x00010000
+#define EPCTRL_RX_ENABLE 0x00000080
+#define EPCTRL_RX_DATA_TOGGLE_RST 0x00000040 /* Not EP0 */
+#define EPCTRL_RX_DATA_TOGGLE_INH 0x00000020 /* Not EP0 */
+#define EPCTRL_RX_TYPE 0x0000000C
+#define EPCTRL_RX_DATA_SINK 0x00000002 /* Not EP0 */
+#define EPCTRL_RX_EP_STALL 0x00000001
+
+/* bit 19-18 and 3-2 are endpoint type */
+#define EPCTRL_EP_TYPE_CONTROL 0
+#define EPCTRL_EP_TYPE_ISO 1
+#define EPCTRL_EP_TYPE_BULK 2
+#define EPCTRL_EP_TYPE_INTERRUPT 3
+#define EPCTRL_TX_EP_TYPE_SHIFT 18
+#define EPCTRL_RX_EP_TYPE_SHIFT 2
+
+/* pri_ctrl Register Bit Masks */
+#define PRI_CTRL_PRI_LVL1 0x0000000C
+#define PRI_CTRL_PRI_LVL0 0x00000003
+
+/* si_ctrl Register Bit Masks */
+#define SI_CTRL_ERR_DISABLE 0x00000010
+#define SI_CTRL_IDRC_DISABLE 0x00000008
+#define SI_CTRL_RD_SAFE_EN 0x00000004
+#define SI_CTRL_RD_PREFETCH_DISABLE 0x00000002
+#define SI_CTRL_RD_PREFEFETCH_VAL 0x00000001
+
+
+/* control Register Bit Masks */
+#define USB_CTRL_IOENB 0x00000004
+#define USB_CTRL_ULPI_INT0EN 0x00000001
+
+
+/* Endpoint Transfer Descriptor bit Masks */
+#define DTD_NEXT_TERMINATE 0x00000001
+#define DTD_IOC 0x00008000
+#define DTD_STATUS_ACTIVE 0x00000080
+#define DTD_STATUS_HALTED 0x00000040
+#define DTD_STATUS_DATA_BUFF_ERR 0x00000020
+#define DTD_STATUS_TRANSACTION_ERR 0x00000008
+#define DTD_RESERVED_FIELDS 0x80007300
+#define DTD_ADDR_MASK 0xFFFFFFE0
+#define DTD_PACKET_SIZE 0x7FFF0000
+#define DTD_LENGTH_BIT_POS 16
+#define DTD_ERROR_MASK (DTD_STATUS_HALTED | \
+ DTD_STATUS_DATA_BUFF_ERR | \
+ DTD_STATUS_TRANSACTION_ERR)
+/* Alignment requirements; must be a power of two */
+#define DTD_ALIGNMENT 0x20
+#define QH_ALIGNMENT 2048
+
+/* Controller dma boundary */
+#define UDC_DMA_BOUNDARY 0x1000
+
+#endif /* __FSL_USB2_H */
--- /dev/null
+++ b/include/linux/usb/fsl_xcvr.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2007-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+/**
+ * struct fsl_xcvr_ops - USB transceiver operations
+ *
+ * @xcvr_type: one of PORTSCX_PTS_{UTMI,SERIAL,ULPI}
+ * @init: transceiver- and board-specific initialization function
+ * @uninit: transceiver- and board-specific uninitialization function
+ * @set_host:
+ * @set_device:
+ *
+ */
+struct fsl_xcvr_ops {
+ char *name;
+ u32 xcvr_type;
+ struct fsl_usb2_platform_data *pdata;
+
+ void (*init)(struct fsl_xcvr_ops *ops);
+ void (*uninit)(struct fsl_xcvr_ops *ops);
+ void (*suspend)(struct fsl_xcvr_ops *ops);
+ void (*set_host)(void);
+ void (*set_device)(void);
+ void (*set_vbus_power)(struct fsl_xcvr_ops *ops, int on);
+ void (*set_remote_wakeup)(u32 *view);
+ void (*pullup)(int on);
+};
+
+extern void fsl_usb_xcvr_register(struct fsl_xcvr_ops *xcvr_ops);
+extern void fsl_usb_xcvr_unregister(struct fsl_xcvr_ops *xcvr_ops);
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -164,7 +164,7 @@ otg_shutdown(struct otg_transceiver *otg
}
/* for usb host and peripheral controller drivers */
-#ifdef CONFIG_USB_OTG_UTILS
+#if defined(CONFIG_USB_OTG_UTILS) || defined(CONFIG_COLDFIRE)
extern struct otg_transceiver *otg_get_transceiver(void);
extern void otg_put_transceiver(struct otg_transceiver *);
#else
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