-diff -urN linux.old/drivers/net/b44.c linux.dev/drivers/net/b44.c
---- linux.old/drivers/net/b44.c 2006-01-12 17:27:45.920623500 +0100
-+++ linux.dev/drivers/net/b44.c 2006-01-13 13:29:18.782391750 +0100
+Index: linux-2.4.35.4/drivers/net/b44.c
+===================================================================
+--- linux-2.4.35.4.orig/drivers/net/b44.c 2007-12-15 05:19:36.094477944 +0100
++++ linux-2.4.35.4/drivers/net/b44.c 2007-12-15 05:20:16.020753214 +0100
@@ -1,7 +1,9 @@
/* b44.c: Broadcom 4400 device driver.
*
*
* Distribute under GPL.
*/
-@@ -25,6 +27,41 @@
+@@ -25,6 +27,39 @@
#include "b44.h"
+#include <typedefs.h>
+#include <bcmdevs.h>
-+#include <bcmutils.h>
+#include <osl.h>
-+#include <bcmutils.h>
+#include <bcmnvram.h>
+#include <sbconfig.h>
+#include <sbchipc.h>
{ } /* terminate list with empty entry */
};
-@@ -236,6 +275,8 @@
+@@ -113,11 +152,13 @@
+ udelay(10);
+ }
+ if (i == timeout) {
++#ifdef DEBUG
+ printk(KERN_ERR PFX "%s: BUG! Timeout waiting for bit %08x of register "
+ "%lx to %s.\n",
+ bp->dev->name,
+ bit, reg,
+ (clear ? "clear" : "set"));
++#endif
+ return -ENODEV;
+ }
+ return 0;
+@@ -236,6 +277,8 @@
udelay(1);
}
static int ssb_core_unit(struct b44 *bp)
{
#if 0
-@@ -258,6 +299,9 @@
+@@ -258,6 +301,9 @@
break;
};
#endif
return 0;
}
-@@ -267,6 +311,28 @@
+@@ -267,6 +313,28 @@
== SBTMSLOW_CLOCK);
}
static void __b44_cam_write(struct b44 *bp, unsigned char *data, int index)
{
u32 val;
-@@ -303,14 +369,14 @@
+@@ -287,7 +355,7 @@
+
+ static inline void __b44_disable_ints(struct b44 *bp)
+ {
+- bw32(B44_IMASK, 0);
++ bw32(B44_IMASK, ISTAT_TO); /* leave the timeout interrupt active */
+ }
+
+ static void b44_disable_ints(struct b44 *bp)
+@@ -303,14 +371,14 @@
bw32(B44_IMASK, bp->imask);
}
(reg << MDIO_DATA_RA_SHIFT) |
(MDIO_TA_VALID << MDIO_DATA_TA_SHIFT)));
err = b44_wait_bit(bp, B44_EMAC_ISTAT, EMAC_INT_MII, 100, 0);
-@@ -319,23 +385,42 @@
+@@ -319,23 +387,42 @@
return err;
}
err = b44_writephy(bp, MII_BMCR, BMCR_RESET);
if (err)
return err;
-@@ -405,6 +490,18 @@
- {
+@@ -406,6 +493,23 @@
u32 val;
int err;
-+ char *s;
+
+
-+ if ((s = nvram_get("boardnum")) && (s != NULL) && \
-+ !strncmp(s, "2", 1) && \
-+ (__b44_readphy(bp, 0, MII_BMCR, &val) != 0) && \
-+ (val & BMCR_ISOLATE) && \
++ /*
++ * workaround for bad hardware design in Linksys WAP54G v1.0
++ * see https://dev.openwrt.org/ticket/146
++ * check and reset bit "isolate"
++ */
++ if ((bp->pdev->device == PCI_DEVICE_ID_BCM4713) &&
++ (atoi(nvram_get("boardnum")) == 2) &&
++ (__b44_readphy(bp, 0, MII_BMCR, &val) == 0) &&
++ (val & BMCR_ISOLATE) &&
+ (__b44_writephy(bp, 0, MII_BMCR, val & ~BMCR_ISOLATE) != 0)) {
+ printk(KERN_WARNING PFX "PHY: cannot reset MII transceiver isolate bit.\n");
+ }
+
+ if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
+ return 0;
-
++
if ((err = b44_readphy(bp, B44_MII_ALEDCTRL, &val)) != 0)
goto out;
-@@ -498,6 +595,19 @@
+ if ((err = b44_writephy(bp, B44_MII_ALEDCTRL,
+@@ -498,6 +602,19 @@
{
u32 bmsr, aux;
if (!b44_readphy(bp, MII_BMSR, &bmsr) &&
!b44_readphy(bp, B44_MII_AUXCTRL, &aux) &&
(bmsr != 0xffff)) {
-@@ -1092,6 +1202,8 @@
+@@ -765,6 +882,25 @@
+ return received;
+ }
+
++
++static inline void __b44_reset(struct b44 *bp)
++{
++ spin_lock_irq(&bp->lock);
++ b44_halt(bp);
++ b44_init_rings(bp);
++ b44_init_hw(bp);
++ spin_unlock_irq(&bp->lock);
++
++ b44_enable_ints(bp);
++ netif_wake_queue(bp->dev);
++}
++
++static inline void __b44_set_timeout(struct b44 *bp, int timeout)
++{
++ /* Set timeout for Rx to two seconds after the last Tx */
++ bw32(B44_GPTIMER, timeout ? 2 * 125000000 : 0);
++}
++
+ static int b44_poll(struct net_device *netdev, int *budget)
+ {
+ struct b44 *bp = netdev->priv;
+@@ -772,13 +908,13 @@
+
+ spin_lock_irq(&bp->lock);
+
+- if (bp->istat & (ISTAT_TX | ISTAT_TO)) {
++ if (bp->istat & ISTAT_TX) {
+ /* spin_lock(&bp->tx_lock); */
+ b44_tx(bp);
+ /* spin_unlock(&bp->tx_lock); */
+ }
+ spin_unlock_irq(&bp->lock);
+-
++
+ done = 1;
+ if (bp->istat & ISTAT_RX) {
+ int orig_budget = *budget;
+@@ -796,24 +932,18 @@
+ done = 0;
+ }
+
+- if (bp->istat & ISTAT_ERRORS) {
+- spin_lock_irq(&bp->lock);
+- b44_halt(bp);
+- b44_init_rings(bp);
+- b44_init_hw(bp);
+- netif_wake_queue(bp->dev);
+- spin_unlock_irq(&bp->lock);
+- done = 1;
+- }
+-
+ if (done) {
+ netif_rx_complete(netdev);
+ b44_enable_ints(bp);
+ }
+
++ if ((bp->core_unit == 1) && (bp->istat & (ISTAT_TX | ISTAT_RX)))
++ __b44_set_timeout(bp, (bp->istat & ISTAT_TX) ? 1 : 0);
++
+ return (done ? 0 : 1);
+ }
+
++
+ static irqreturn_t b44_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+ {
+ struct net_device *dev = dev_id;
+@@ -832,6 +962,18 @@
+ */
+ istat &= imask;
+ if (istat) {
++ /* Workaround for the WL-500g WAN port hang */
++ if (istat & (ISTAT_TO | ISTAT_ERRORS)) {
++ /*
++ * no rx before the watchdog timeout
++ * reset the interface
++ */
++ __b44_reset(bp);
++ }
++
++ if ((bp->core_unit == 1) && (bp->istat & (ISTAT_TX | ISTAT_RX)))
++ __b44_set_timeout(bp, (bp->istat & ISTAT_TX) ? 1 : 0);
++
+ handled = 1;
+ if (netif_rx_schedule_prep(dev)) {
+ /* NOTE: These writes are posted by the readback of
+@@ -848,6 +990,7 @@
+ bw32(B44_ISTAT, istat);
+ br32(B44_ISTAT);
+ }
++
+ spin_unlock_irqrestore(&bp->lock, flags);
+ return IRQ_RETVAL(handled);
+ }
+@@ -859,16 +1002,7 @@
+ printk(KERN_ERR PFX "%s: transmit timed out, resetting\n",
+ dev->name);
+
+- spin_lock_irq(&bp->lock);
+-
+- b44_halt(bp);
+- b44_init_rings(bp);
+- b44_init_hw(bp);
+-
+- spin_unlock_irq(&bp->lock);
+-
+- b44_enable_ints(bp);
+-
++ __b44_reset(bp);
+ netif_wake_queue(dev);
+ }
+
+@@ -1092,6 +1226,8 @@
/* bp->lock is held. */
static void b44_chip_reset(struct b44 *bp)
{
if (ssb_is_core_up(bp)) {
bw32(B44_RCV_LAZY, 0);
bw32(B44_ENET_CTRL, ENET_CTRL_DISABLE);
-@@ -1105,9 +1217,10 @@
+@@ -1105,9 +1241,10 @@
bw32(B44_DMARX_CTRL, 0);
bp->rx_prod = bp->rx_cons = 0;
} else {
}
ssb_core_reset(bp);
-@@ -1115,6 +1228,11 @@
+@@ -1115,6 +1252,11 @@
b44_clear_stats(bp);
/* Make PHY accessible. */
bw32(B44_MDIO_CTRL, (MDIO_CTRL_PREAMBLE |
(0x0d & MDIO_CTRL_MAXF_MASK)));
br32(B44_MDIO_CTRL);
-@@ -1628,7 +1746,7 @@
+@@ -1216,6 +1358,8 @@
+ struct b44 *bp = dev->priv;
+ int err;
+
++ netif_carrier_off(dev);
++
+ err = b44_alloc_consistent(bp);
+ if (err)
+ return err;
+@@ -1236,9 +1380,10 @@
+ bp->timer.expires = jiffies + HZ;
+ bp->timer.data = (unsigned long) bp;
+ bp->timer.function = b44_timer;
+- add_timer(&bp->timer);
++ b44_timer((unsigned long) bp);
+
+ b44_enable_ints(bp);
++ netif_start_queue(dev);
+
+ return 0;
+
+@@ -1638,7 +1783,7 @@
u32 mii_regval;
spin_lock_irq(&bp->lock);
spin_unlock_irq(&bp->lock);
data->val_out = mii_regval;
-@@ -1641,7 +1759,7 @@
+@@ -1651,7 +1796,7 @@
return -EPERM;
spin_lock_irq(&bp->lock);
spin_unlock_irq(&bp->lock);
return err;
-@@ -1668,21 +1786,52 @@
+@@ -1678,21 +1823,52 @@
static int __devinit b44_get_invariants(struct b44 *bp)
{
u8 eeprom[128];
/* With this, plus the rx_header prepended to the data by the
* hardware, we'll land the ethernet header on a 2-byte boundary.
-@@ -1692,13 +1841,12 @@
+@@ -1702,13 +1878,12 @@
bp->imask = IMASK_DEF;
bp->core_unit = ssb_core_unit(bp);
}
static int __devinit b44_init_one(struct pci_dev *pdev,
-@@ -1710,6 +1858,10 @@
+@@ -1720,6 +1895,10 @@
struct b44 *bp;
int err, i;
if (b44_version_printed++ == 0)
printk(KERN_INFO "%s", version);
-@@ -1819,11 +1971,17 @@
-
- pci_save_state(bp->pdev, bp->pci_cfg_state);
+@@ -1834,11 +2013,17 @@
+ */
+ b44_chip_reset(bp);
- printk(KERN_INFO "%s: Broadcom 4400 10/100BaseT Ethernet ", dev->name);
+ printk(KERN_INFO "%s: Broadcom %s 10/100BaseT Ethernet ", dev->name,
return 0;
err_out_iounmap:
-diff -urN linux.old/drivers/net/b44.h linux.dev/drivers/net/b44.h
---- linux.old/drivers/net/b44.h 2006-01-12 17:26:13.234831000 +0100
-+++ linux.dev/drivers/net/b44.h 2006-01-12 17:22:01.043070000 +0100
+Index: linux-2.4.35.4/drivers/net/b44.h
+===================================================================
+--- linux-2.4.35.4.orig/drivers/net/b44.h 2007-12-15 05:19:36.102478402 +0100
++++ linux-2.4.35.4/drivers/net/b44.h 2007-12-15 05:20:16.028753670 +0100
@@ -229,8 +229,6 @@
#define SBIPSFLAG_IMASK4 0x3f000000 /* Which sbflags --> mips interrupt 4 */
#define SBIPSFLAG_ISHIFT4 24
/* SW copy of device statistics, kept up to date by periodic timer
* which probes HW values. Must have same relative layout as HW
-diff -urN linux.old/include/linux/pci_ids.h linux.dev/include/linux/pci_ids.h
---- linux.old/include/linux/pci_ids.h 2006-01-12 17:26:13.250832000 +0100
-+++ linux.dev/include/linux/pci_ids.h 2006-01-12 17:22:01.071071750 +0100
-@@ -1735,6 +1735,7 @@
+Index: linux-2.4.35.4/include/linux/pci_ids.h
+===================================================================
+--- linux-2.4.35.4.orig/include/linux/pci_ids.h 2007-12-15 05:19:36.114479084 +0100
++++ linux-2.4.35.4/include/linux/pci_ids.h 2007-12-15 05:20:16.032753896 +0100
+@@ -1756,6 +1756,7 @@
#define PCI_DEVICE_ID_TIGON3_5901_2 0x170e
#define PCI_DEVICE_ID_BCM4401 0x4401
#define PCI_DEVICE_ID_BCM4401B0 0x4402
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