mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-05 05:20:37 +02:00
7e4cbd86ff
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11498 3c298f89-4303-0410-b956-a3cf2f4a3e73
176 lines
4.4 KiB
Diff
176 lines
4.4 KiB
Diff
From: Michael Barkowski <michael.barkowski@freescale.com>
|
|
Date: Fri, 11 May 2007 23:24:51 +0000 (-0500)
|
|
Subject: phylib: add the ICPlus IP175C PHY driver
|
|
X-Git-Tag: v2.6.23-rc1~1201^2~58
|
|
X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=0cefeebaf3da39d768bffcf62460fe2088e824ef
|
|
|
|
phylib: add the ICPlus IP175C PHY driver
|
|
|
|
The ICPlus IP175C sports a 100Mbit/s 4-port switch in addition
|
|
to a dedicated 100Mbit/s WAN port.
|
|
|
|
Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com>
|
|
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
|
|
Signed-off-by: Jeff Garzik <jeff@garzik.org>
|
|
---
|
|
|
|
--- a/drivers/net/phy/Kconfig
|
|
+++ b/drivers/net/phy/Kconfig
|
|
@@ -55,6 +55,11 @@
|
|
---help---
|
|
Currently supports the BCM5411, BCM5421 and BCM5461 PHYs.
|
|
|
|
+config ICPLUS_PHY
|
|
+ tristate "Drivers for ICPlus PHYs"
|
|
+ ---help---
|
|
+ Currently supports the IP175C PHY.
|
|
+
|
|
config FIXED_PHY
|
|
tristate "Drivers for PHY emulation on fixed speed/link"
|
|
---help---
|
|
--- a/drivers/net/phy/Makefile
|
|
+++ b/drivers/net/phy/Makefile
|
|
@@ -11,4 +11,5 @@
|
|
obj-$(CONFIG_SMSC_PHY) += smsc.o
|
|
obj-$(CONFIG_VITESSE_PHY) += vitesse.o
|
|
obj-$(CONFIG_BROADCOM_PHY) += broadcom.o
|
|
+obj-$(CONFIG_ICPLUS_PHY) += icplus.o
|
|
obj-$(CONFIG_FIXED_PHY) += fixed.o
|
|
--- /dev/null
|
|
+++ b/drivers/net/phy/icplus.c
|
|
@@ -0,0 +1,134 @@
|
|
+/*
|
|
+ * Driver for ICPlus PHYs
|
|
+ *
|
|
+ * Copyright (c) 2007 Freescale Semiconductor, Inc.
|
|
+ *
|
|
+ * 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.
|
|
+ *
|
|
+ */
|
|
+#include <linux/kernel.h>
|
|
+#include <linux/string.h>
|
|
+#include <linux/errno.h>
|
|
+#include <linux/unistd.h>
|
|
+#include <linux/slab.h>
|
|
+#include <linux/interrupt.h>
|
|
+#include <linux/init.h>
|
|
+#include <linux/delay.h>
|
|
+#include <linux/netdevice.h>
|
|
+#include <linux/etherdevice.h>
|
|
+#include <linux/skbuff.h>
|
|
+#include <linux/spinlock.h>
|
|
+#include <linux/mm.h>
|
|
+#include <linux/module.h>
|
|
+#include <linux/mii.h>
|
|
+#include <linux/ethtool.h>
|
|
+#include <linux/phy.h>
|
|
+
|
|
+#include <asm/io.h>
|
|
+#include <asm/irq.h>
|
|
+#include <asm/uaccess.h>
|
|
+
|
|
+MODULE_DESCRIPTION("ICPlus IP175C PHY driver");
|
|
+MODULE_AUTHOR("Michael Barkowski");
|
|
+MODULE_LICENSE("GPL");
|
|
+
|
|
+static int ip175c_config_init(struct phy_device *phydev)
|
|
+{
|
|
+ int err, i;
|
|
+ static int full_reset_performed = 0;
|
|
+
|
|
+ if (full_reset_performed == 0) {
|
|
+
|
|
+ /* master reset */
|
|
+ err = phydev->bus->write(phydev->bus, 30, 0, 0x175c);
|
|
+ if (err < 0)
|
|
+ return err;
|
|
+
|
|
+ /* ensure no bus delays overlap reset period */
|
|
+ err = phydev->bus->read(phydev->bus, 30, 0);
|
|
+
|
|
+ /* data sheet specifies reset period is 2 msec */
|
|
+ mdelay(2);
|
|
+
|
|
+ /* enable IP175C mode */
|
|
+ err = phydev->bus->write(phydev->bus, 29, 31, 0x175c);
|
|
+ if (err < 0)
|
|
+ return err;
|
|
+
|
|
+ /* Set MII0 speed and duplex (in PHY mode) */
|
|
+ err = phydev->bus->write(phydev->bus, 29, 22, 0x420);
|
|
+ if (err < 0)
|
|
+ return err;
|
|
+
|
|
+ /* reset switch ports */
|
|
+ for (i = 0; i < 5; i++) {
|
|
+ err = phydev->bus->write(phydev->bus, i,
|
|
+ MII_BMCR, BMCR_RESET);
|
|
+ if (err < 0)
|
|
+ return err;
|
|
+ }
|
|
+
|
|
+ for (i = 0; i < 5; i++)
|
|
+ err = phydev->bus->read(phydev->bus, i, MII_BMCR);
|
|
+
|
|
+ mdelay(2);
|
|
+
|
|
+ full_reset_performed = 1;
|
|
+ }
|
|
+
|
|
+ if (phydev->addr != 4) {
|
|
+ phydev->state = PHY_RUNNING;
|
|
+ phydev->speed = SPEED_100;
|
|
+ phydev->duplex = DUPLEX_FULL;
|
|
+ phydev->link = 1;
|
|
+ netif_carrier_on(phydev->attached_dev);
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ip175c_read_status(struct phy_device *phydev)
|
|
+{
|
|
+ if (phydev->addr == 4) /* WAN port */
|
|
+ genphy_read_status(phydev);
|
|
+ else
|
|
+ /* Don't need to read status for switch ports */
|
|
+ phydev->irq = PHY_IGNORE_INTERRUPT;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ip175c_config_aneg(struct phy_device *phydev)
|
|
+{
|
|
+ if (phydev->addr == 4) /* WAN port */
|
|
+ genphy_config_aneg(phydev);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static struct phy_driver ip175c_driver = {
|
|
+ .phy_id = 0x02430d80,
|
|
+ .name = "ICPlus IP175C",
|
|
+ .phy_id_mask = 0x0ffffff0,
|
|
+ .features = PHY_BASIC_FEATURES,
|
|
+ .config_init = &ip175c_config_init,
|
|
+ .config_aneg = &ip175c_config_aneg,
|
|
+ .read_status = &ip175c_read_status,
|
|
+ .driver = { .owner = THIS_MODULE,},
|
|
+};
|
|
+
|
|
+static int __init ip175c_init(void)
|
|
+{
|
|
+ return phy_driver_register(&ip175c_driver);
|
|
+}
|
|
+
|
|
+static void __exit ip175c_exit(void)
|
|
+{
|
|
+ phy_driver_unregister(&ip175c_driver);
|
|
+}
|
|
+
|
|
+module_init(ip175c_init);
|
|
+module_exit(ip175c_exit);
|