[ar7] handle mvswitch in cpmac, rework MII probing logic, patch from sn9 and Wipster

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24140 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 65 insertions, 232 deletions

diff --git a/target/linux/ar7/patches-2.6.32/970-remove_fixed_phy.patch b/target/linux/ar7/patches-2.6.32/970-remove_fixed_phy.patch
deleted file mode 100644
index 0e72267ab5..0000000000
--- a/target/linux/ar7/patches-2.6.32/970-remove_fixed_phy.patch
+++ /dev/null
@@ -1,89 +0,0 @@
---- a/arch/mips/ar7/platform.c
-+++ b/arch/mips/ar7/platform.c
-@@ -33,7 +33,6 @@
- #include <linux/string.h>
- #include <linux/etherdevice.h>
- #include <linux/phy.h>
--#include <linux/phy_fixed.h>
- 
- #include <asm/addrspace.h>
- #include <asm/mach-ar7/ar7.h>
-@@ -294,12 +293,6 @@ static struct physmap_flash_data physmap
- 	.width = 2,
- };
- 
--static struct fixed_phy_status fixed_phy_status __initdata = {
--	.link = 1,
--	.speed = 100,
--	.duplex = 1,
--};
--
- static struct plat_cpmac_data cpmac_low_data = {
- 	.reset_bit = 17,
- 	.power_bit = 20,
-@@ -716,11 +709,6 @@ static int __init ar7_register_devices(v
- 	}
- 
- 	if (ar7_has_high_cpmac()) {
--		res = fixed_phy_add(PHY_POLL, ar7_is_titan() ? cpmac_high_titan.id : cpmac_high.id,
--						&fixed_phy_status);
--		if (res && res != -ENODEV)
--			return res;
--
- 		cpmac_get_mac(1, ar7_is_titan() ? cpmac_high_data_titan.dev_addr :
- 						cpmac_high_data.dev_addr);
- 		res = platform_device_register(ar7_is_titan() ? &cpmac_high_titan :
-@@ -736,11 +724,6 @@ static int __init ar7_register_devices(v
- 
- 	}
- 
--	res = fixed_phy_add(PHY_POLL, ar7_is_titan() ? cpmac_low_titan.id :
--			cpmac_low.id, &fixed_phy_status);
--	if (res && res != -ENODEV)
--		return res;
--
- 	cpmac_get_mac(0, ar7_is_titan() ? cpmac_low_data_titan.dev_addr :
- 			cpmac_low_data.dev_addr);
- 	res = platform_device_register(ar7_is_titan() ? &cpmac_low_titan :
---- a/drivers/net/cpmac.c
-+++ b/drivers/net/cpmac.c
-@@ -1117,21 +1117,17 @@ static int __devinit cpmac_probe(struct
- 
- 	pdata = pdev->dev.platform_data;
- 
--	if (external_switch || dumb_switch) {
--		strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE); /* fixed phys bus */
--		phy_id = pdev->id;
--	} else {
--		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;
--		}
-+	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) {
-+		//This probably wont work as no fixed bus anymore.
- 		dev_err(&pdev->dev, "no PHY present, falling back to switch mode\n");
- 		strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE); /* fixed phys bus */
- 		phy_id = pdev->id;
-@@ -1269,7 +1265,7 @@ int __devinit cpmac_init(void)
- 	}
- 
- 	cpmac_mii->phy_mask = ar7_is_titan()? ~(mask | 0x80000000 | 0x40000000):
--		~(mask | 0x80000000);
-+		~(mask | 0x80000001);
- 	snprintf(cpmac_mii->id, MII_BUS_ID_SIZE, "1");
- 
- 	res = mdiobus_register(cpmac_mii);
diff --git a/target/linux/ar7/patches-2.6.32/971-cpmac_cleanup.patch b/target/linux/ar7/patches-2.6.32/971-cpmac_cleanup.patch
deleted file mode 100644
index 754119a41c..0000000000
--- a/target/linux/ar7/patches-2.6.32/971-cpmac_cleanup.patch
+++ /dev/null
@@ -1,48 +0,0 @@
---- a/drivers/net/cpmac.c
-+++ b/drivers/net/cpmac.c
-@@ -33,7 +33,6 @@
- #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>
-@@ -1104,8 +1103,6 @@ static const struct net_device_ops cpmac
- 	.ndo_set_mac_address	= eth_mac_addr,
- };
- 
--static int external_switch;
--
- static int __devinit cpmac_probe(struct platform_device *pdev)
- {
- 	int rc, phy_id;
-@@ -1127,10 +1124,8 @@ static int __devinit cpmac_probe(struct
- 	}
- 	
- 	if (phy_id == PHY_MAX_ADDR) {
--		//This probably wont work as no fixed bus anymore.
--		dev_err(&pdev->dev, "no PHY present, falling back to switch mode\n");
--		strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE); /* fixed phys bus */
--		phy_id = pdev->id;
-+		dev_err(&pdev->dev, "no PHY present\n");
-+		return -ENODEV;
- 	}
- 
- 	dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES);
-@@ -1258,14 +1253,8 @@ int __devinit cpmac_init(void)
- 		else
- 			msleep(10);
- 
--	mask &= 0x7fffffff;
--	if (mask & (mask - 1)) {
--		external_switch = 1;
--		mask = 0;
--	}
--
- 	cpmac_mii->phy_mask = ar7_is_titan()? ~(mask | 0x80000000 | 0x40000000):
--		~(mask | 0x80000001);
-+		~(mask | 0x80000000);
- 	snprintf(cpmac_mii->id, MII_BUS_ID_SIZE, "1");
- 
- 	res = mdiobus_register(cpmac_mii);
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
deleted file mode 100644
index 941d8889c1..0000000000
--- a/target/linux/ar7/patches-2.6.32/972-cpmac_multi_probe.patch
+++ /dev/null
@@ -1,95 +0,0 @@
---- 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;
-@@ -1111,9 +1118,13 @@ static int __devinit cpmac_probe(struct
- 	struct cpmac_priv *priv;
- 	struct net_device *dev;
- 	struct plat_cpmac_data *pdata;
-+	void __iomem *mii_reg;
-+	u32 tmp;
-+	unsigned external_mii = 0;
- 
- 	pdata = pdev->dev.platform_data;
- 
-+detect_again:
- 	for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) {
- 		if (!(pdata->phy_mask & (1 << phy_id)))
- 			continue;
-@@ -1122,12 +1133,43 @@ 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 && !external_mii)
-+		goto dev_alloc;
-+
-+	/* Now disable EPHY and enable MII */
-+	dev_info(&pdev->dev, "trying external MII\n");
-+	ar7_device_disable(AR7_RESET_BIT_EPHY);
-+
-+	mii_reg = ioremap(AR7_REGS_MII, 4);
-+	if (!mii_reg) {
-+		dev_err(&pdev->dev, "failed to iorenamp MII_SEL\n");
-+		return -ENOMEM;
- 	}
- 
-+	tmp = readl(mii_reg);
-+	tmp |= 1;
-+	writel(tmp, mii_reg);
-+	external_mii++;
-+
-+	if (external_mii == 1)
-+		goto detect_again;
-+
-+	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) {
---- a/arch/mips/include/asm/mach-ar7/ar7.h
-+++ b/arch/mips/include/asm/mach-ar7/ar7.h
-@@ -41,6 +41,7 @@
- #define AR7_REGS_RESET	(AR7_REGS_BASE + 0x1600)
- #define AR7_REGS_VLYNQ0	(AR7_REGS_BASE + 0x1800)
- #define AR7_REGS_DCL	(AR7_REGS_BASE + 0x1a00)
-+#define AR7_REGS_MII	(AR7_REGS_BASE + 0x1a08)
- #define AR7_REGS_VLYNQ1	(AR7_REGS_BASE + 0x1c00)
- #define AR7_REGS_MDIO	(AR7_REGS_BASE + 0x1e00)
- #define AR7_REGS_IRQ	(AR7_REGS_BASE + 0x2400)
diff --git a/target/linux/ar7/patches-2.6.32/973-cpmac_handle_mvswitch.c b/target/linux/ar7/patches-2.6.32/973-cpmac_handle_mvswitch.c
new file mode 100644
index 0000000000..23c66aa5b6
--- /dev/null
+++ b/target/linux/ar7/patches-2.6.32/973-cpmac_handle_mvswitch.c
@@ -0,0 +1,65 @@
+Index: linux-2.6.32.25/drivers/net/cpmac.c
+===================================================================
+--- linux-2.6.32.25.orig/drivers/net/cpmac.c	2010-11-24 12:16:56.067517245 -0800
++++ linux-2.6.32.25/drivers/net/cpmac.c	2010-11-24 12:17:56.279985384 -0800
+@@ -387,6 +387,7 @@
+ 				    struct cpmac_desc *desc)
+ {
+ 	struct sk_buff *skb, *result = NULL;
++	int offset;
+ 
+ 	if (unlikely(netif_msg_hw(priv)))
+ 		cpmac_dump_desc(priv->dev, desc);
+@@ -400,9 +401,13 @@
+ 
+ 	skb = netdev_alloc_skb(priv->dev, CPMAC_SKB_SIZE);
+ 	if (likely(skb)) {
+-		skb_reserve(skb, 2);
++		offset = 2;
++		if (priv->phy) {
++			offset += priv->phy->pkt_align;
++		}
++		skb_reserve(skb, offset);
++
+ 		skb_put(desc->skb, desc->datalen);
+-		desc->skb->protocol = eth_type_trans(desc->skb, priv->dev);
+ 		desc->skb->ip_summed = CHECKSUM_NONE;
+ 		priv->dev->stats.rx_packets++;
+ 		priv->dev->stats.rx_bytes += desc->datalen;
+@@ -474,7 +479,12 @@
+ 
+ 		skb = cpmac_rx_one(priv, desc);
+ 		if (likely(skb)) {
+-			netif_receive_skb(skb);
++			if (priv->phy->netif_receive_skb) {
++				priv->phy->netif_receive_skb(skb);
++			} else {
++				skb->protocol = eth_type_trans(skb, priv->dev);
++				netif_receive_skb(skb);
++			}
+ 			received++;
+ 		}
+ 		desc = desc->next;
+@@ -970,7 +980,7 @@
+ 
+ static int cpmac_open(struct net_device *dev)
+ {
+-	int i, size, res;
++	int i, size, res, offset;
+ 	struct cpmac_priv *priv = netdev_priv(dev);
+ 	struct resource *mem;
+ 	struct cpmac_desc *desc;
+@@ -1014,7 +1024,12 @@
+ 			res = -ENOMEM;
+ 			goto fail_desc;
+ 		}
+-		skb_reserve(skb, 2);
++		offset = 2;
++		if (priv->phy) {
++			offset += priv->phy->pkt_align;
++		}
++		skb_reserve(skb, offset);
++
+ 		desc->skb = skb;
+ 		desc->data_mapping = dma_map_single(&dev->dev, skb->data,
+ 						    CPMAC_SKB_SIZE,