Messages in this thread Patch in this message | | | From | Florian Schirmer <> | Subject | [PATCH][4/4] b44: Add bcm47xx support | Date | Sun, 29 Aug 2004 22:39:50 +0200 |
| |
Hi,
finally add bcm47xx support using the infrastructure created by the earlier patches.
Regards, Florian
Signed-off-by: Florian Schirmer <jolt@tuxbox.org>
--- linux/drivers/net/b44.c-old4 2004-08-29 17:24:23.000000000 +0200 +++ linux/drivers/net/b44.c 2004-08-29 18:48:45.000000000 +0200 @@ -1,7 +1,8 @@ -/* b44.c: Broadcom 4400 device driver. +/* b44.c: Broadcom 4400/47xx 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. */ @@ -75,7 +76,7 @@ static char version[] __devinitdata = 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 +90,8 @@ static struct pci_device_id b44_pci_tbl[ 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 */ }; @@ -202,29 +205,14 @@ static void ssb_core_reset(struct b44 *b udelay(1); } +static int b44_4713_instance; + static int ssb_core_unit(struct b44 *bp) { -#if 0 - u32 val = br32(B44_SBADMATCH0); - u32 base; - - type = val & SBADMATCH0_TYPE_MASK; - switch (type) { - case 0: - base = val & SBADMATCH0_BS0_MASK; - break; - - case 1: - base = val & SBADMATCH0_BS1_MASK; - break; - - case 2: - default: - base = val & SBADMATCH0_BS2_MASK; - break; - }; -#endif - return 0; + if (bp->pdev->device == PCI_DEVICE_ID_BCM4713) + return b44_4713_instance++; + else + return 0; } static int ssb_is_core_up(struct b44 *bp) @@ -233,6 +221,28 @@ static int ssb_is_core_up(struct b44 *bp == 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; @@ -1110,6 +1120,8 @@ static void b44_clear_stats(struct b44 * /* 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); @@ -1123,9 +1135,10 @@ static void b44_chip_reset(struct b44 *b 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); @@ -1133,8 +1146,14 @@ static void b44_chip_reset(struct b44 *b 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))); + (((sb_clock + (B44_MDC_RATIO / 2)) / B44_MDC_RATIO) + & MDIO_CTRL_MAXF_MASK))); br32(B44_MDIO_CTRL); if (!(br32(B44_DEVCTRL) & DEVCTRL_IPP)) { @@ -1654,19 +1673,41 @@ static int __devinit b44_get_invariants( { 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; + 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; + } /* With this, plus the rx_header prepended to the data by the * hardware, we'll land the ethernet header on a 2-byte boundary. @@ -1676,13 +1717,12 @@ static int __devinit b44_get_invariants( bp->imask = IMASK_DEF; bp->core_unit = ssb_core_unit(bp); - bp->dma_offset = SB_PCI_DMA; /* XXX - really required? bp->flags |= B44_FLAG_BUGGY_TXPTR; */ -out: - return err; + + return 0; } static int __devinit b44_init_one(struct pci_dev *pdev, @@ -1811,7 +1851,8 @@ static int __devinit b44_init_one(struct 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' : ':'); --- linux/drivers/net/b44.h-old4 2004-08-29 17:24:53.000000000 +0200 +++ linux/drivers/net/b44.h 2004-08-29 18:42:56.000000000 +0200 @@ -363,6 +363,7 @@ struct ring_info { #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 [unhandled content-type:application/pgp-signature] | |