mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-12 00:37:09 +02:00
343c185b7d
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16547 3c298f89-4303-0410-b956-a3cf2f4a3e73
471 lines
14 KiB
Diff
471 lines
14 KiB
Diff
From b014a8a0b66b1f0f55b3384f586f43e67e6dcc5d Mon Sep 17 00:00:00 2001
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From: Bruce Schmid <duck@freescale.com>
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Date: Tue, 4 Dec 2007 16:03:17 -0700
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Subject: [PATCH] USB: cleanup
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LTIBName: m5445x-usb-cleanup-2
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Signed-off-by: Duck <duck@freescale.com>
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---
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drivers/usb/gadget/mcf5445x_udc.c | 14 ---
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drivers/usb/host/ehci-arc.c | 19 +---
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drivers/usb/otg/fsl_otg.c | 225 ++-----------------------------------
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drivers/usb/otg/otg_fsm.h | 2 +-
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include/linux/usb/fsl_usb2.h | 5 +-
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5 files changed, 15 insertions(+), 250 deletions(-)
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--- a/drivers/usb/gadget/mcf5445x_udc.c
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+++ b/drivers/usb/gadget/mcf5445x_udc.c
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@@ -321,11 +321,6 @@ static void pullup_enable(struct fsl_udc
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temp = fsl_readl(&dr_regs->usbcmd);
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temp |= USB_CMD_RUN_STOP;
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fsl_writel(temp, &dr_regs->usbcmd);
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-
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-#ifdef NEVER /* DDD FIXME: we want this? */
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- if (!udc->transceiver)
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- *((u16 *)(MCF_FBCS1_CSAR)) &= ~0x1; /* Enable pullup register */
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-#endif
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}
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static void pullup_disable(struct fsl_udc *udc)
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@@ -345,12 +340,6 @@ static void pullup_disable(struct fsl_ud
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tmp = fsl_readl(&dr_regs->usbcmd);
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tmp &= ~USB_CMD_RUN_STOP;
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fsl_writel(tmp, &dr_regs->usbcmd);
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-
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-#ifdef NEVER /* DDD FIXME: we want this? */
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- if (!udc->transceiver)
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- *((u16 *)(MCF_FBCS1_CSAR)) |= 0x1; /* Disable pullup register */
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-#endif
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-
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}
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static void dr_controller_run(struct fsl_udc *udc)
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@@ -2598,9 +2587,6 @@ static int __init fsl_udc_probe(struct p
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ret = -ENOMEM;
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goto err4;
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}
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-#if 0 // DDD why this? hoarks OTG host
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- pullup_disable(udc);
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-#endif
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create_proc_file();
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return 0;
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--- a/drivers/usb/host/ehci-arc.c
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+++ b/drivers/usb/host/ehci-arc.c
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@@ -378,25 +378,14 @@ static int ehci_fsl_drv_resume(struct pl
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memcpy(ehci->regs, (void *)&usb_ehci_regs, sizeof(struct ehci_regs));
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-#if 0 // DDD test
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- ehci_writel(ehci, usb_ehci_portsc, &ehci->regs->port_status[0]);
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- printk("set portsc %08x %08x\n", usb_ehci_portsc,
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- ehci_readl(ehci, &ehci->regs->port_status[0]));
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- printk("set usbmode %08x\n",
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- ehci_readl(ehci, &ehci->regs + FSL_SOC_USB_USBMODE));
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-
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tmp = USBMODE_CM_HOST | (pdata->es ? USBMODE_ES : 0);
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ehci_writel(ehci, tmp, hcd->regs + FSL_SOC_USB_USBMODE);
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-#else
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- tmp = USBMODE_CM_HOST | (pdata->es ? USBMODE_ES : 0);
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- ehci_writel(ehci, tmp, hcd->regs + FSL_SOC_USB_USBMODE);
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- printk("tmp %08x set usbmode %08x\n", tmp,
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- ehci_readl(ehci, hcd->regs + FSL_SOC_USB_USBMODE));
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+ pr_debug("tmp %08x set usbmode %08x\n", tmp,
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+ ehci_readl(ehci, hcd->regs + FSL_SOC_USB_USBMODE));
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ehci_writel(ehci, usb_ehci_portsc, &ehci->regs->port_status[0]);
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- printk("set portsc %08x %08x\n", usb_ehci_portsc,
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- ehci_readl(ehci, &ehci->regs->port_status[0]));
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-#endif
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+ pr_debug("set portsc %08x %08x\n", usb_ehci_portsc,
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+ ehci_readl(ehci, &ehci->regs->port_status[0]));
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set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
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hcd->state = HC_STATE_RUNNING;
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--- a/drivers/usb/otg/fsl_otg.c
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+++ b/drivers/usb/otg/fsl_otg.c
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@@ -98,6 +98,7 @@ static struct fsl_otg_config fsl_otg_ini
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.otg_port = 1,
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};
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+#if 0
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static void dump_state(const char *string, struct otg_fsm *fsm)
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{
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printk(KERN_DEBUG "%s\n\tOTG state: %s\n", string,
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@@ -135,6 +136,7 @@ static void dump_state(const char *strin
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printk(KERN_DEBUG "\tb_sess_vld: %d\n", fsm->b_sess_vld);
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printk(KERN_DEBUG "\tid: %d\n", fsm->id);
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}
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+#endif
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/* Routines to access transceiver ULPI registers */
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@@ -537,6 +539,7 @@ int fsl_otg_start_gadget(struct otg_fsm
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return 0;
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}
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+#if 0
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static void fsl_otg_enable(struct otg_transceiver *otg_p)
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{
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struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
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@@ -549,7 +552,7 @@ static void fsl_otg_enable(struct otg_tr
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otg_sc |= OTGSC_INTERRUPT_ENABLE_BITS_MASK;
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otg_sc &= ~OTGSC_IE_1ms_TIMER;
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otg_sc &= ~OTGSC_CTRL_VBUS_DISCHARGE;
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- otg_sc |= OTGSC_IE_USB_ID; /* DDD added this */
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+ otg_sc |= OTGSC_IE_USB_ID;
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fsl_writel(otg_sc, &usb_dr_regs->otgsc);
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fsm->id = (otg_sc & OTGSC_STS_USB_ID) ? 1 : 0;
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@@ -570,6 +573,7 @@ static void fsl_otg_enable(struct otg_tr
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fsm->a_sess_vld = (otg_sc & OTGSC_STS_A_SESSION_VALID) ? 1 : 0;
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fsm->b_sess_end = (otg_sc & OTGSC_STS_B_SESSION_END) ? 1 : 0;
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}
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+#endif
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/*
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* Called by initialization code of host driver. Register host controller
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@@ -577,34 +581,6 @@ static void fsl_otg_enable(struct otg_tr
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*/
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static int fsl_otg_set_host(struct otg_transceiver *otg_p, struct usb_bus *host)
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{
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-#if 0 // DDD beta-final
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- struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
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- struct device *dev = host->controller;
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-
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- if (!otg_p || otg_dev != fsl_otg_dev)
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- return -ENODEV;
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-
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- otg_p->host = host;
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- otg_p->host->is_b_host = otg_dev->fsm.id;
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-
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- otg_dev->fsm.a_bus_drop = 0;
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- otg_dev->fsm.a_bus_req = 1;
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-
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- otg_p->host->otg_port = fsl_otg_initdata.otg_port;
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-
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- if (dev && dev->driver) {
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- VDBG("suspending host\n");
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- dev->driver->suspend(dev, PMSG_SUSPEND);
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- otg_dev->host_working = 0;
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- VDBG("back\n");
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- }
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-
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-
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- /* dump_state("set_host running statemachine", &otg_dev->fsm); DDD */
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- otg_statemachine(&otg_dev->fsm);
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-
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- return 0;
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-#else
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struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
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if (!otg_p || otg_dev != fsl_otg_dev)
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@@ -644,7 +620,6 @@ static int fsl_otg_set_host(struct otg_t
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otg_statemachine(&otg_dev->fsm);
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return 0;
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-#endif
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}
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/* Called by initialization code of udc. Register udc to OTG.*/
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@@ -673,12 +648,6 @@ static int fsl_otg_set_peripheral(struct
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otg_dev->fsm.b_bus_req = 1;
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-#if 0 /* DDD uClinux */
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- if (otg_p->host) {
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- fsl_otg_enable(otg_p);
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- otg_statemachine(&otg_dev->fsm);
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- }
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-#endif
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/* start the gadget right away if the ID pin says Mini-B */
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DBG("ID pin=%d\n", otg_dev->fsm.id);
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if (otg_dev->fsm.id == 1) {
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@@ -815,162 +784,6 @@ irqreturn_t fsl_otg_isr(int irq, void *d
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}
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-#if 0 // DDD feta-final
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-irqreturn_t foo_fsl_otg_isr(int irq, void *dev_id)
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-{
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- struct otg_fsm *fsm = &((struct fsl_otg *)dev_id)->fsm;
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- struct otg_transceiver *otg = &((struct fsl_otg *)dev_id)->otg;
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- u32 otg_int_src, usb_int_src, otg_sc;
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- int trigger = 0;
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- int tmp;
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-
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- usb_int_src = fsl_readl(&usb_dr_regs->usbsts);
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- otg_sc = fsl_readl(&usb_dr_regs->otgsc);
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- otg_int_src = otg_sc & OTGSC_INTSTS_MASK & (otg_sc >> 8);
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-
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- /* Only clear otg interrupts */
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- fsl_writel(otg_sc, &usb_dr_regs->otgsc);
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-
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- /*FIXME: ID change not generate when init to 0 */
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- /* process OTG interrupts */
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- if (otg_int_src) {
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- VDBG("\nOTG irq 0x%08x\n", otg_int_src);
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- if (otg_int_src & OTGSC_INTSTS_1MS_TIMER)
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- trigger = fsl_otg_tick_timer();
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-
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- if (otg_int_src & OTGSC_INTSTS_USB_ID) {
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- fsm->id = (otg_sc & OTGSC_STS_USB_ID) ? 1 : 0;
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- otg->default_a = (fsm->id == 0);
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- if (otg->host)
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- otg->host->is_b_host = fsm->id;
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- if (otg->gadget)
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- otg->gadget->is_a_peripheral = !fsm->id;
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- VDBG("IRQ=ID now=%d\n", fsm->id);
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-
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- if (fsm->id) { /* switch to gadget */
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- schedule_delayed_work(&((struct fsl_otg *)
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- dev_id)->otg_event, 25);
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- } else { /* switch to host */
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- cancel_delayed_work(&
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- ((struct fsl_otg *)dev_id)->
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- otg_event);
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- fsl_otg_start_gadget(fsm, 0);
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- fsl_otg_drv_vbus(1);
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- fsl_otg_start_host(fsm, 1);
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- }
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-
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- return IRQ_HANDLED;
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- }
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- if (otg_int_src & OTGSC_INTSTS_DATA_PULSE) {
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- fsm->a_srp_det = 1;
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- trigger = 1;
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- VDBG("!!!!Data pulse int\n");
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- }
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- if (otg_int_src & OTGSC_INTSTS_A_SESSION_VALID) {
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- fsm->a_sess_vld =
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- (otg_sc & OTGSC_STS_A_SESSION_VALID) ? 1 : 0;
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- /* detect VBUS pulsing */
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- if ((fsm->transceiver->state == OTG_STATE_A_IDLE)
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- && fsm->a_sess_vld)
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- fsm->a_srp_det = 1;
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- trigger = 1;
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- VDBG("!!!a_sess_vld int state=%d\n", fsm->a_sess_vld);
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- }
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- if (otg_int_src & OTGSC_INTSTS_A_VBUS_VALID) {
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- fsm->a_vbus_vld = !!(otg_sc & OTGSC_STS_A_VBUS_VALID);
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- trigger = 1;
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- VDBG("!!!a_vbus_vld int state=%d\n", fsm->a_vbus_vld);
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-
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-#if 1
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- if ((fsm->a_vbus_vld == 0) && (fsm->id == 0)) {
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- if (fsm->transceiver->state != OTG_STATE_A_WAIT_VFALL)
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- /* Warning insted of transfer to Error state. */
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- printk(KERN_WARNING "ulpi: The USB Device is "
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- "sinking too much current!!\n");
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- fsm->a_vbus_vld = 1;
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- }
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-#endif
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-
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-
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- }
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- if (otg_int_src & OTGSC_INTSTS_B_SESSION_VALID) {
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- fsm->b_sess_vld =
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- (otg_sc & OTGSC_STS_B_SESSION_VALID) ? 1 : 0;
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- trigger = 1;
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- /* SRP done */
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- if ((fsl_otg_dev->otg.state == OTG_STATE_B_SRP_INIT) &&
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- fsm->b_sess_vld && srp_wait_done)
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- fsm->b_srp_done = 1;
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- VDBG("!!!!b_sess_vld int state=%d\n", fsm->b_sess_vld);
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- }
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- if (otg_int_src & OTGSC_INTSTS_B_SESSION_END) {
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- fsm->b_sess_end =
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- (otg_sc & OTGSC_STS_B_SESSION_END) ? 1 : 0;
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- trigger = 1;
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- VDBG("!!!!b_sess_end int state=%d\n", fsm->b_sess_end);
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- }
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- }
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-
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- /* process USB interrupts */
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- if ((usb_int_src & USB_STS_PORT_CHANGE)
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- && (fsm->protocol == PROTO_HOST)) {
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- VDBG("\nUSB irq A 0x%08x\n", usb_int_src);
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- /* Device resume do not generate statemachine change */
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- if (fsl_readl(&usb_dr_regs->portsc1) &
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- PORTSCX_PORT_FORCE_RESUME) {
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- if (otg->default_a) {
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- fsm->b_bus_resume = 1;
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- trigger = 1;
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- } else {
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- fsm->a_bus_resume = 1;
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- trigger = 1;
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- }
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- }
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-
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- tmp = (fsl_readl(&usb_dr_regs->portsc1) &
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- PORTSCX_CURRENT_CONNECT_STATUS) ? 1 : 0;
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- if (otg->default_a && (fsm->b_conn != tmp)) {
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- fsm->b_conn = tmp;
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- trigger = 1;
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- } else if (!otg->default_a && (fsm->a_conn != tmp)) {
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- fsm->a_conn = tmp;
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- trigger = 1;
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- }
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- }
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- /* Workaround: sometimes CSC bit will lost. We change to
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- * polling CCS bit for connect change */
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- if (fsm->protocol == PROTO_GADGET) {
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- if (usb_int_src & USB_STS_SUSPEND) {
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- VDBG("\nUSB irq B 0x%08x\n", usb_int_src);
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- VDBG("peripheral detected suspend\n");
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- if (otg->default_a)
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- /* A-device detects B suspend */
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- fsm->b_bus_suspend = 1;
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- else
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- /* B-device detects A suspend */
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- fsm->a_bus_suspend = 1;
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- trigger = 1;
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- } else if (usb_int_src & USB_STS_PORT_CHANGE) {
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- VDBG("\nUSB irq C 0x%08x\n", usb_int_src);
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- VDBG("peripheral resumed\n");
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- if (otg->default_a)
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- fsm->b_bus_suspend = 0;
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- else
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- fsm->a_bus_suspend = 0;
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- trigger = 1;
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- }
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- }
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-
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- /* Invoke statemachine until state is stable */
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- while (trigger) {
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- trigger = otg_statemachine(fsm);
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- }
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-
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- return IRQ_HANDLED;
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-}
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-#endif
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-
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-
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static struct otg_fsm_ops fsl_otg_ops = {
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.chrg_vbus = fsl_otg_chrg_vbus,
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.drv_vbus = fsl_otg_drv_vbus,
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@@ -1003,7 +816,6 @@ int fsl_otg_cfg(struct platform_device *
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if (!fsl_otg_tc)
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return -ENODEV;
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-#if 1 // DDD
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if (pdata->regs) {
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fsl_otg_tc->dr_mem_map = pdata->regs;
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} else {
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@@ -1013,8 +825,10 @@ int fsl_otg_cfg(struct platform_device *
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return -ENODEV;
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}
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+ /*
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printk("DDD %s(): rsrc_start=0x%x rsrc_len=0x%x\n",
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__FUNCTION__, res->start, res->end - res->start + 1);
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+ */
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if (!request_mem_region(res->start, res->end - res->start + 1,
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"OTG")) {
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@@ -1026,7 +840,6 @@ int fsl_otg_cfg(struct platform_device *
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}
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DBG("set dr_mem_map to 0x%p\n", fsl_otg_tc->dr_mem_map);
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-#endif
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INIT_DELAYED_WORK(&fsl_otg_tc->otg_event, fsl_otg_event);
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INIT_LIST_HEAD(&active_timers);
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@@ -1035,12 +848,11 @@ int fsl_otg_cfg(struct platform_device *
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/* Set OTG state machine operations */
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fsl_otg_tc->fsm.ops = &fsl_otg_ops;
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-#if 1 /* DDD */
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/* record initial state of ID pin */
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fsl_otg_tc->fsm.id = (fsl_otg_tc->dr_mem_map->otgsc & OTGSC_STS_USB_ID)
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? 1 : 0;
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DBG("initial ID pin=%d\n", fsl_otg_tc->fsm.id);
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-#endif
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+
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/* initialize the otg structure */
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fsl_otg_tc->otg.label = DRIVER_DESC;
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fsl_otg_tc->otg.set_host = fsl_otg_set_host;
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@@ -1115,13 +927,8 @@ int usb_otg_start(struct platform_device
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__FUNCTION__, timeout);
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/* configure the VBUSHS as IDLE(both host and device) */
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-#if 0
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- /* DDD really have to check into setting the following */
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- fsl_writel(USB_MODE_STREAM_DISABLE, &usb_dr_regs->usbmode);
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-#else
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temp = USB_MODE_STREAM_DISABLE | (pdata->es ? USBMODE_ES : 0);
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fsl_writel(temp, &usb_dr_regs->usbmode);
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-#endif
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/* configure PHY interface */
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temp = fsl_readl(&usb_dr_regs->portsc1);
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@@ -1135,24 +942,11 @@ int usb_otg_start(struct platform_device
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/* disable all interrupt and clear all OTGSC status */
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temp = fsl_readl(&usb_dr_regs->otgsc);
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temp &= ~OTGSC_INTERRUPT_ENABLE_BITS_MASK;
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-#if 0 // DDD
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- /* DDD only want ID int
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- * temp |= OTGSC_INTERRUPT_STATUS_BITS_MASK | OTGSC_CTRL_VBUS_DISCHARGE;
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- */
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- temp |= OTGSC_IE_USB_ID; /* DDD added this */
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- temp &= ~OTGSC_IE_1ms_TIMER; /* DDD added this */
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-#else
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temp |= OTGSC_INTERRUPT_STATUS_BITS_MASK | OTGSC_CTRL_VBUS_DISCHARGE;
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-#endif
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fsl_writel(temp, &usb_dr_regs->otgsc);
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fsl_otg_drv_vbus(0);
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-#if 0 // DDD beta-final
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- temp = fsl_readl(&usb_dr_regs->otgsc);
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- temp |= OTGSC_IE_A_SESSION_VALID;
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- fsl_writel(temp, &usb_dr_regs->otgsc);
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-#else
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/*
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* The identification (id) input is FALSE when a Mini-A plug is inserted
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* in the devices Mini-AB receptacle. Otherwise, this input is TRUE.
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@@ -1173,7 +967,6 @@ int usb_otg_start(struct platform_device
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temp |= OTGSC_IE_USB_ID;
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temp &= ~(OTGSC_CTRL_VBUS_DISCHARGE | OTGSC_IE_1ms_TIMER);
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fsl_writel(temp, &usb_dr_regs->otgsc);
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-#endif
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return 0;
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}
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@@ -1427,10 +1220,8 @@ static int __init fsl_otg_probe(struct p
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return -ENOMEM;
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pdata = pdev->dev.platform_data;
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-#if 1 // DDD do this elsewhere
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/* Initialize the clock, multiplexing pin and PHY interface */
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board_init(pdev);
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-#endif
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|
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/* configure the OTG */
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status = fsl_otg_cfg(pdev);
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--- a/drivers/usb/otg/otg_fsm.h
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+++ b/drivers/usb/otg/otg_fsm.h
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@@ -18,7 +18,7 @@
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#ifndef OTG_FSM_H
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#define OTG_FSM_H
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|
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-#if 1
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+#if 0
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|
#define DEBUG 1
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|
#define VERBOSE 1
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#endif
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|
--- a/include/linux/usb/fsl_usb2.h
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+++ b/include/linux/usb/fsl_usb2.h
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@@ -104,9 +104,8 @@ struct fsl_usb_host_regs {
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|
#if 0
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u32 endptctrl[USB_MAX_ENDPOINTS]; /* Endpoint Control Registers */
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#else
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- // DDD: do these exits in the host register set??
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- // DDD see DCCPARAMS:DEN for the real number of device endpoints
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- // DDD 16 is the max
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+ /* DDD see DCCPARAMS:DEN for the real number of device endpoints */
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+ /* DDD 16 is the max */
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|
u32 endptctrl[16]; /* Endpoint Control Registers */
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#endif
|
|
};
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