From a109918b9d4d298b186d0acd118c518d422c13e5 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian@openwrt.org>
Date: Sun, 22 Aug 2010 17:09:11 +0000
Subject: [PATCH] [ar7] make adm6996 switches work on tnetd7200 and tnetd7300

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22771 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 target/linux/ar7/config-2.6.32                |  1 +
 .../972-cpmac_multi_probe.patch               | 67 +++++++++++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 target/linux/ar7/patches-2.6.32/972-cpmac_multi_probe.patch

diff --git a/target/linux/ar7/config-2.6.32 b/target/linux/ar7/config-2.6.32
index 3e7fb4edde..208c0baf0a 100644
--- a/target/linux/ar7/config-2.6.32
+++ b/target/linux/ar7/config-2.6.32
@@ -60,6 +60,7 @@ CONFIG_DECOMPRESS_LZMA=y
 CONFIG_DMA_NEED_PCI_MAP_STATE=y
 CONFIG_DMA_NONCOHERENT=y
 CONFIG_EARLY_PRINTK=y
+CONFIG_FIXED_PHY=y
 # CONFIG_FSNOTIFY is not set
 CONFIG_GENERIC_CLOCKEVENTS=y
 CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
diff --git a/target/linux/ar7/patches-2.6.32/972-cpmac_multi_probe.patch b/target/linux/ar7/patches-2.6.32/972-cpmac_multi_probe.patch
new file mode 100644
index 0000000000..44933d0c11
--- /dev/null
+++ b/target/linux/ar7/patches-2.6.32/972-cpmac_multi_probe.patch
@@ -0,0 +1,67 @@
+--- a/drivers/net/cpmac.c
++++ b/drivers/net/cpmac.c
+@@ -33,6 +33,7 @@
+ #include <linux/skbuff.h>
+ #include <linux/mii.h>
+ #include <linux/phy.h>
++#include <linux/phy_fixed.h>
+ #include <linux/platform_device.h>
+ #include <linux/dma-mapping.h>
+ #include <asm/gpio.h>
+@@ -217,6 +218,12 @@ static void cpmac_hw_stop(struct net_dev
+ static int cpmac_stop(struct net_device *dev);
+ static int cpmac_open(struct net_device *dev);
+ 
++static struct fixed_phy_status fixed_phy_status = {
++	.link = 1,
++	.speed = 100,
++	.duplex = 1,
++};
++
+ static void cpmac_dump_regs(struct net_device *dev)
+ {
+ 	int i;
+@@ -1122,12 +1129,39 @@ static int __devinit cpmac_probe(struct
+ 		strncpy(mdio_bus_id, cpmac_mii->id, MII_BUS_ID_SIZE);
+ 		break;
+ 	}
+-	
+-	if (phy_id == PHY_MAX_ADDR) {
+-		dev_err(&pdev->dev, "no PHY present\n");
+-		return -ENODEV;
++
++	if (phy_id < PHY_MAX_ADDR)
++		goto dev_alloc;
++
++	dev_info(&pdev->dev, "trying external MII\n");
++	/* Now disable EPHY and enable MII */
++	ar7_device_disable(AR7_RESET_BIT_EPHY);
++	*(unsigned long*) ioremap(0x08611A08, 4) |= 0x00000001;
++
++	for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) {
++		if (!(pdata->phy_mask & (1 << phy_id)))
++			continue;
++		if (!cpmac_mii->phy_map[phy_id])
++			continue;
++		strncpy(mdio_bus_id, cpmac_mii->id, MII_BUS_ID_SIZE);
++		break;
++	}
++
++	if (phy_id < PHY_MAX_ADDR)
++		goto dev_alloc;
++
++	/* This still does not work, so now we register a fixed phy */
++	dev_info(&pdev->dev, "using fixed PHY\n");
++	rc = fixed_phy_add(PHY_POLL, pdev->id, &fixed_phy_status);
++	if (rc && rc != -ENODEV) {
++		dev_err(&pdev->dev, "unable to register fixed PHY\n");
++		return rc;
+ 	}
+ 
++	strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE); /* fixed phys bus */
++	phy_id = pdev->id;
++
++dev_alloc:
+ 	dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES);
+ 
+ 	if (!dev) {