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

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SVN-Revision: 24140
This commit is contained in:
Florian Fainelli 2010-11-25 11:58:02 +00:00
parent e7ecbdcaa8
commit 80785891e8
4 changed files with 65 additions and 232 deletions
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89
target/linux/ar7/patches-2.6.32/970-remove_fixed_phy.patch
View file

@ -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);

48
target/linux/ar7/patches-2.6.32/971-cpmac_cleanup.patch
View file

@ -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);

95
target/linux/ar7/patches-2.6.32/972-cpmac_multi_probe.patch
View file

@ -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)

65
target/linux/ar7/patches-2.6.32/973-cpmac_handle_mvswitch.c Normal file
View file

@ -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,