diff options
author | Ayaz Abdulla <aabdulla@nvidia.com> | 2006-04-24 18:41:31 -0400 |
---|---|---|
committer | Jeff Garzik <jeff@garzik.org> | 2006-04-26 06:19:46 -0400 |
commit | 86a0f04387bfa814618bf0c2c8b203899c4fa5d2 (patch) | |
tree | efc0739a5eb89d4374c7365ef2dcbee44004987e /drivers/net/forcedeth.c | |
parent | bdf9c27d020ba50b42949c383c1956216c9fd522 (diff) | |
download | kernel_samsung_espresso10-86a0f04387bfa814618bf0c2c8b203899c4fa5d2.zip kernel_samsung_espresso10-86a0f04387bfa814618bf0c2c8b203899c4fa5d2.tar.gz kernel_samsung_espresso10-86a0f04387bfa814618bf0c2c8b203899c4fa5d2.tar.bz2 |
[PATCH] forcedeth: fix initialization
This patch fixes the nic initialization. If the nic was in low power
mode, it brings it back to normal power. Also, it utilizes a new
hardware reset during the init.
I am resending based on feedback, I corrected the register size mapping
and delay after posted write.
Signed-Off-By: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/forcedeth.c')
-rw-r--r-- | drivers/net/forcedeth.c | 79 |
1 files changed, 67 insertions, 12 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 7627a75..9788b1e 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -105,6 +105,7 @@ * 0.50: 20 Jan 2006: Add 8021pq tagging support. * 0.51: 20 Jan 2006: Add 64bit consistent memory allocation for rings. * 0.52: 20 Jan 2006: Add MSI/MSIX support. + * 0.53: 19 Mar 2006: Fix init from low power mode and add hw reset. * * Known bugs: * We suspect that on some hardware no TX done interrupts are generated. @@ -116,7 +117,7 @@ * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few * superfluous timer interrupts from the nic. */ -#define FORCEDETH_VERSION "0.52" +#define FORCEDETH_VERSION "0.53" #define DRV_NAME "forcedeth" #include <linux/module.h> @@ -160,6 +161,7 @@ #define DEV_HAS_VLAN 0x0020 /* device supports vlan tagging and striping */ #define DEV_HAS_MSI 0x0040 /* device supports MSI */ #define DEV_HAS_MSI_X 0x0080 /* device supports MSI-X */ +#define DEV_HAS_POWER_CNTRL 0x0100 /* device supports power savings */ enum { NvRegIrqStatus = 0x000, @@ -203,6 +205,8 @@ enum { #define NVREG_MISC1_HD 0x02 #define NVREG_MISC1_FORCE 0x3b0f3c + NvRegMacReset = 0x3c, +#define NVREG_MAC_RESET_ASSERT 0x0F3 NvRegTransmitterControl = 0x084, #define NVREG_XMITCTL_START 0x01 NvRegTransmitterStatus = 0x088, @@ -326,6 +330,10 @@ enum { NvRegMSIXMap0 = 0x3e0, NvRegMSIXMap1 = 0x3e4, NvRegMSIXIrqStatus = 0x3f0, + + NvRegPowerState2 = 0x600, +#define NVREG_POWERSTATE2_POWERUP_MASK 0x0F11 +#define NVREG_POWERSTATE2_POWERUP_REV_A3 0x0001 }; /* Big endian: should work, but is untested */ @@ -414,7 +422,8 @@ typedef union _ring_type { #define NV_RX3_VLAN_TAG_MASK (0x0000FFFF) /* Miscelaneous hardware related defines: */ -#define NV_PCI_REGSZ 0x270 +#define NV_PCI_REGSZ_VER1 0x270 +#define NV_PCI_REGSZ_VER2 0x604 /* various timeout delays: all in usec */ #define NV_TXRX_RESET_DELAY 4 @@ -431,6 +440,7 @@ typedef union _ring_type { #define NV_MIIBUSY_DELAY 50 #define NV_MIIPHY_DELAY 10 #define NV_MIIPHY_DELAYMAX 10000 +#define NV_MAC_RESET_DELAY 64 #define NV_WAKEUPPATTERNS 5 #define NV_WAKEUPMASKENTRIES 4 @@ -552,6 +562,8 @@ struct fe_priv { u32 desc_ver; u32 txrxctl_bits; u32 vlanctl_bits; + u32 driver_data; + u32 register_size; void __iomem *base; @@ -919,6 +931,24 @@ static void nv_txrx_reset(struct net_device *dev) pci_push(base); } +static void nv_mac_reset(struct net_device *dev) +{ + struct fe_priv *np = netdev_priv(dev); + u8 __iomem *base = get_hwbase(dev); + + dprintk(KERN_DEBUG "%s: nv_mac_reset\n", dev->name); + writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl); + pci_push(base); + writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset); + pci_push(base); + udelay(NV_MAC_RESET_DELAY); + writel(0, base + NvRegMacReset); + pci_push(base); + udelay(NV_MAC_RESET_DELAY); + writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl); + pci_push(base); +} + /* * nv_get_stats: dev->get_stats function * Get latest stats value from the nic. @@ -1331,7 +1361,7 @@ static void nv_tx_timeout(struct net_device *dev) dev->name, (unsigned long)np->ring_addr, np->next_tx, np->nic_tx); printk(KERN_INFO "%s: Dumping tx registers\n", dev->name); - for (i=0;i<0x400;i+= 32) { + for (i=0;i<=np->register_size;i+= 32) { printk(KERN_INFO "%3x: %08x %08x %08x %08x %08x %08x %08x %08x\n", i, readl(base + i + 0), readl(base + i + 4), @@ -2488,11 +2518,11 @@ static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) } #define FORCEDETH_REGS_VER 1 -#define FORCEDETH_REGS_SIZE 0x400 /* 256 32-bit registers */ static int nv_get_regs_len(struct net_device *dev) { - return FORCEDETH_REGS_SIZE; + struct fe_priv *np = netdev_priv(dev); + return np->register_size; } static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf) @@ -2504,7 +2534,7 @@ static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void regs->version = FORCEDETH_REGS_VER; spin_lock_irq(&np->lock); - for (i=0;i<FORCEDETH_REGS_SIZE/sizeof(u32);i++) + for (i = 0;i <= np->register_size/sizeof(u32); i++) rbuf[i] = readl(base + i*sizeof(u32)); spin_unlock_irq(&np->lock); } @@ -2608,6 +2638,8 @@ static int nv_open(struct net_device *dev) dprintk(KERN_DEBUG "nv_open: begin\n"); /* 1) erase previous misconfiguration */ + if (np->driver_data & DEV_HAS_POWER_CNTRL) + nv_mac_reset(dev); /* 4.1-1: stop adapter: ignored, 4.3 seems to be overkill */ writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA); writel(0, base + NvRegMulticastAddrB); @@ -2878,6 +2910,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i unsigned long addr; u8 __iomem *base; int err, i; + u32 powerstate; dev = alloc_etherdev(sizeof(struct fe_priv)); err = -ENOMEM; @@ -2910,6 +2943,11 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i if (err < 0) goto out_disable; + if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL)) + np->register_size = NV_PCI_REGSZ_VER2; + else + np->register_size = NV_PCI_REGSZ_VER1; + err = -EINVAL; addr = 0; for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { @@ -2918,7 +2956,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i pci_resource_len(pci_dev, i), pci_resource_flags(pci_dev, i)); if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM && - pci_resource_len(pci_dev, i) >= NV_PCI_REGSZ) { + pci_resource_len(pci_dev, i) >= np->register_size) { addr = pci_resource_start(pci_dev, i); break; } @@ -2929,6 +2967,9 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i goto out_relreg; } + /* copy of driver data */ + np->driver_data = id->driver_data; + /* handle different descriptor versions */ if (id->driver_data & DEV_HAS_HIGH_DMA) { /* packet format 3: supports 40-bit addressing */ @@ -2986,7 +3027,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i } err = -ENOMEM; - np->base = ioremap(addr, NV_PCI_REGSZ); + np->base = ioremap(addr, np->register_size); if (!np->base) goto out_relreg; dev->base_addr = (unsigned long)np->base; @@ -3062,6 +3103,20 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i writel(0, base + NvRegWakeUpFlags); np->wolenabled = 0; + if (id->driver_data & DEV_HAS_POWER_CNTRL) { + u8 revision_id; + pci_read_config_byte(pci_dev, PCI_REVISION_ID, &revision_id); + + /* take phy and nic out of low power mode */ + powerstate = readl(base + NvRegPowerState2); + powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK; + if ((id->device == PCI_DEVICE_ID_NVIDIA_NVENET_12 || + id->device == PCI_DEVICE_ID_NVIDIA_NVENET_13) && + revision_id >= 0xA3) + powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3; + writel(powerstate, base + NvRegPowerState2); + } + if (np->desc_ver == DESC_VER_1) { np->tx_flags = NV_TX_VALID; } else { @@ -3223,19 +3278,19 @@ static struct pci_device_id pci_tbl[] = { }, { /* MCP51 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL, }, { /* MCP51 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_13), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL, }, { /* MCP55 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL, }, { /* MCP55 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL, }, {0,}, }; 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