+This patch adds BCM47xx support for the B44 driver. It has been backported
+from Florian Schirmer's 2.6 port.
+
+Imre Kaloz <kaloz@dune.hu>
+
+diff -Nur linux-2.4.29/drivers/net/b44.c linux-2.4.29-b44/drivers/net/b44.c
+--- linux-2.4.29/drivers/net/b44.c 2004-08-08 01:26:05.000000000 +0200
++++ linux-2.4.29-b44/drivers/net/b44.c 2005-04-09 10:17:33.000000000 +0200
+@@ -1,7 +1,8 @@
+ /* b44.c: Broadcom 4400 device driver.
+ *
+ * Copyright (C) 2002 David S. Miller (davem@redhat.com)
+- * Fixed by Pekka Pietikainen (pp@ee.oulu.fi)
++ * Copyright (C) 2004 Pekka Pietikainen (pp@ee.oulu.fi)
++ * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
+ *
+ * Distribute under GPL.
+ */
+@@ -25,6 +26,16 @@
+
+ #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>
++#include <sflash.h>
++
+ #define DRV_MODULE_NAME "b44"
+ #define PFX DRV_MODULE_NAME ": "
+ #define DRV_MODULE_VERSION "0.93"
+@@ -75,7 +86,7 @@
+ DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
+
+ MODULE_AUTHOR("David S. Miller (davem@redhat.com)");
+-MODULE_DESCRIPTION("Broadcom 4400 10/100 PCI ethernet driver");
++MODULE_DESCRIPTION("Broadcom 4400/47xx 10/100 PCI ethernet driver");
+ MODULE_LICENSE("GPL");
+ MODULE_PARM(b44_debug, "i");
+ MODULE_PARM_DESC(b44_debug, "B44 bitmapped debugging message enable value");
+@@ -89,6 +100,8 @@
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+ { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4401B1,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
++ { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4713,
++ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+ { } /* terminate list with empty entry */
+ };
+
+@@ -236,6 +249,8 @@
+ udelay(1);
+ }
+
++static int b44_4713_instance;
++
+ static int ssb_core_unit(struct b44 *bp)
+ {
+ #if 0
+@@ -258,6 +273,9 @@
+ break;
+ };
+ #endif
++ if (bp->pdev->device == PCI_DEVICE_ID_BCM4713)
++ return b44_4713_instance++;
++ else
+ return 0;
+ }
+
+@@ -267,6 +285,28 @@
+ == SBTMSLOW_CLOCK);
+ }
+
++static void __b44_cam_read(struct b44 *bp, unsigned char *data, int index)
++{
++ u32 val;
++
++ bw32(B44_CAM_CTRL, (CAM_CTRL_READ |
++ (index << CAM_CTRL_INDEX_SHIFT)));
++
++ b44_wait_bit(bp, B44_CAM_CTRL, CAM_CTRL_BUSY, 100, 1);
++
++ val = br32(B44_CAM_DATA_LO);
++
++ data[2] = (val >> 24) & 0xFF;
++ data[3] = (val >> 16) & 0xFF;
++ data[4] = (val >> 8) & 0xFF;
++ data[5] = (val >> 0) & 0xFF;
++
++ val = br32(B44_CAM_DATA_HI);
++
++ data[0] = (val >> 8) & 0xFF;
++ data[1] = (val >> 0) & 0xFF;
++}
++
+ static void __b44_cam_write(struct b44 *bp, unsigned char *data, int index)
+ {
+ u32 val;
+@@ -307,6 +347,9 @@
+ {
+ int err;
+
++ if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
++ return 0;
++
+ bw32(B44_EMAC_ISTAT, EMAC_INT_MII);
+ bw32(B44_MDIO_DATA, (MDIO_DATA_SB_START |
+ (MDIO_OP_READ << MDIO_DATA_OP_SHIFT) |
+@@ -321,6 +364,9 @@
+
+ static int b44_writephy(struct b44 *bp, int reg, u32 val)
+ {
++ if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
++ return 0;
++
+ bw32(B44_EMAC_ISTAT, EMAC_INT_MII);
+ bw32(B44_MDIO_DATA, (MDIO_DATA_SB_START |
+ (MDIO_OP_WRITE << MDIO_DATA_OP_SHIFT) |
+@@ -336,6 +382,9 @@
+ u32 val;
+ int err;
+
++ if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
++ return 0;
++
+ err = b44_writephy(bp, MII_BMCR, BMCR_RESET);
+ if (err)
+ return err;
+@@ -406,6 +455,9 @@
+ u32 val;
+ int err;
+
++ if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
++ return 0;
++
+ if ((err = b44_readphy(bp, B44_MII_ALEDCTRL, &val)) != 0)
+ goto out;
+ if ((err = b44_writephy(bp, B44_MII_ALEDCTRL,
+@@ -498,6 +550,19 @@
+ {
+ u32 bmsr, aux;
+
++ if (bp->phy_addr == B44_PHY_ADDR_NO_PHY) {
++ bp->flags |= B44_FLAG_100_BASE_T;
++ bp->flags |= B44_FLAG_FULL_DUPLEX;
++ if (!netif_carrier_ok(bp->dev)) {
++ u32 val = br32(B44_TX_CTRL);
++ val |= TX_CTRL_DUPLEX;
++ bw32(B44_TX_CTRL, val);
++ netif_carrier_on(bp->dev);
++ b44_link_report(bp);
++ }
++ return;
++ }
++
+ if (!b44_readphy(bp, MII_BMSR, &bmsr) &&
+ !b44_readphy(bp, B44_MII_AUXCTRL, &aux) &&
+ (bmsr != 0xffff)) {
+@@ -1092,6 +1157,8 @@
+ /* bp->lock is held. */
+ static void b44_chip_reset(struct b44 *bp)
+ {
++ unsigned int sb_clock;
++
+ if (ssb_is_core_up(bp)) {
+ bw32(B44_RCV_LAZY, 0);
+ bw32(B44_ENET_CTRL, ENET_CTRL_DISABLE);
+@@ -1105,9 +1172,10 @@
+ bw32(B44_DMARX_CTRL, 0);
+ bp->rx_prod = bp->rx_cons = 0;
+ } else {
+- ssb_pci_setup(bp, (bp->core_unit == 0 ?
+- SBINTVEC_ENET0 :
+- SBINTVEC_ENET1));
++ if (bp->pdev->device != PCI_DEVICE_ID_BCM4713)
++ ssb_pci_setup(bp, (bp->core_unit == 0 ?
++ SBINTVEC_ENET0 :
++ SBINTVEC_ENET1));
+ }
+
+ ssb_core_reset(bp);
+@@ -1115,6 +1183,11 @@
+ b44_clear_stats(bp);
+
+ /* Make PHY accessible. */
++ if (bp->pdev->device == PCI_DEVICE_ID_BCM4713)
++ sb_clock = 100000000; /* 100 MHz */
++ else
++ sb_clock = 62500000; /* 62.5 MHz */
++
+ bw32(B44_MDIO_CTRL, (MDIO_CTRL_PREAMBLE |
+ (0x0d & MDIO_CTRL_MAXF_MASK)));
+ br32(B44_MDIO_CTRL);
+@@ -1669,20 +1742,42 @@
+ {
+ u8 eeprom[128];
+ int err;
++ unsigned long flags;
+
+- err = b44_read_eeprom(bp, &eeprom[0]);
+- if (err)
+- goto out;
+-
+- bp->dev->dev_addr[0] = eeprom[79];
+- bp->dev->dev_addr[1] = eeprom[78];
+- bp->dev->dev_addr[2] = eeprom[81];
+- bp->dev->dev_addr[3] = eeprom[80];
+- bp->dev->dev_addr[4] = eeprom[83];
+- bp->dev->dev_addr[5] = eeprom[82];
+-
+- bp->phy_addr = eeprom[90] & 0x1f;
+- bp->mdc_port = (eeprom[90] >> 14) & 0x1;
++ if (bp->pdev->device == PCI_DEVICE_ID_BCM4713) {
++ /*
++ * BCM47xx boards don't have a EEPROM. The MAC is stored in
++ * a NVRAM area somewhere in the flash memory. As we don't
++ * know the location and/or the format of the NVRAM area
++ * here, we simply rely on the bootloader to write the
++ * MAC into the CAM.
++ */
++ spin_lock_irqsave(&bp->lock, flags);
++ __b44_cam_read(bp, bp->dev->dev_addr, 0);
++ spin_unlock_irqrestore(&bp->lock, flags);
++
++ /*
++ * BCM47xx boards don't have a PHY. Usually there is a switch
++ * chip with multiple PHYs connected to the PHY port.
++ */
++ bp->phy_addr = B44_PHY_ADDR_NO_PHY;
++ bp->dma_offset = 0;
++ } else {
++ err = b44_read_eeprom(bp, &eeprom[0]);
++ if (err)
++ return err;
++
++ bp->dev->dev_addr[0] = eeprom[79];
++ bp->dev->dev_addr[1] = eeprom[78];
++ bp->dev->dev_addr[2] = eeprom[81];
++ bp->dev->dev_addr[3] = eeprom[80];
++ bp->dev->dev_addr[4] = eeprom[83];
++ bp->dev->dev_addr[5] = eeprom[82];
++
++ bp->phy_addr = eeprom[90] & 0x1f;
++ bp->dma_offset = SB_PCI_DMA;
++ bp->mdc_port = (eeprom[90] >> 14) & 0x1;
++ }
+
+ /* 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 +1787,12 @@
+ bp->imask = IMASK_DEF;
+
+ bp->core_unit = ssb_core_unit(bp);
+- bp->dma_offset = ssb_get_addr(bp, SBID_PCI_DMA, 0);
+
+ /* XXX - really required?
+ bp->flags |= B44_FLAG_BUGGY_TXPTR;
+ */
+-out:
+- return err;
++
++ return 0;
+ }
+
+ static int __devinit b44_init_one(struct pci_dev *pdev,
+@@ -1819,7 +1913,8 @@
+
+ pci_save_state(bp->pdev, bp->pci_cfg_state);
+
+- printk(KERN_INFO "%s: Broadcom 4400 10/100BaseT Ethernet ", dev->name);
++ printk(KERN_INFO "%s: Broadcom %s 10/100BaseT Ethernet ", dev->name,
++ (pdev->device == PCI_DEVICE_ID_BCM4713) ? "47xx" : "4400");
+ for (i = 0; i < 6; i++)
+ printk("%2.2x%c", dev->dev_addr[i],
+ i == 5 ? '\n' : ':');
+diff -Nur linux-2.4.29/drivers/net/b44.h linux-2.4.29-b44/drivers/net/b44.h
+--- linux-2.4.29/drivers/net/b44.h 2003-08-25 13:44:42.000000000 +0200
++++ linux-2.4.29-b44/drivers/net/b44.h 2005-04-09 10:13:55.000000000 +0200
+@@ -461,6 +461,8 @@
+ };
+
+ #define B44_MCAST_TABLE_SIZE 32
++#define B44_PHY_ADDR_NO_PHY 30
++#define B44_MDC_RATIO 5000000
+
+ /* SW copy of device statistics, kept up to date by periodic timer
+ * which probes HW values. Must have same relative layout as HW
+diff -Nur linux-2.4.29/include/linux/pci_ids.h linux-2.4.29-b44/include/linux/pci_ids.h
+--- linux-2.4.29/include/linux/pci_ids.h 2005-01-19 15:10:12.000000000 +0100
++++ linux-2.4.29-b44/include/linux/pci_ids.h 2005-04-09 10:13:55.000000000 +0200
+@@ -1735,6 +1735,7 @@
+ #define PCI_DEVICE_ID_TIGON3_5901_2 0x170e
+ #define PCI_DEVICE_ID_BCM4401 0x4401
+ #define PCI_DEVICE_ID_BCM4401B0 0x4402
++#define PCI_DEVICE_ID_BCM4713 0x4713
+
+ #define PCI_VENDOR_ID_ENE 0x1524
+ #define PCI_DEVICE_ID_ENE_1211 0x1211
projects / openwrt.git / commitdiff