From: Stephen Hemminger Date: Wed, 26 Sep 2007 02:01:02 +0000 (-0700) Subject: sky2: use pci_config access functions X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=167f53d05fccb47b6eeadac7f6705b3f2f042d03;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git sky2: use pci_config access functions Use the PCI layer config access functions. The driver was using the memory mapped window in device, to workaround issues accessing the advanced error reporting registers. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik Signed-off-by: David S. Miller --- diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index b81d81746c2c..941a60882526 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -223,21 +223,22 @@ static void sky2_power_on(struct sky2_hw *hw) sky2_write8(hw, B2_Y2_CLK_GATE, 0); if (hw->flags & SKY2_HW_ADV_POWER_CTL) { + struct pci_dev *pdev = hw->pdev; u32 reg; - sky2_pci_write32(hw, PCI_DEV_REG3, 0); + pci_write_config_dword(pdev, PCI_DEV_REG3, 0); - reg = sky2_pci_read32(hw, PCI_DEV_REG4); + pci_read_config_dword(pdev, PCI_DEV_REG4, ®); /* set all bits to 0 except bits 15..12 and 8 */ reg &= P_ASPM_CONTROL_MSK; - sky2_pci_write32(hw, PCI_DEV_REG4, reg); + pci_write_config_dword(pdev, PCI_DEV_REG4, reg); - reg = sky2_pci_read32(hw, PCI_DEV_REG5); + pci_read_config_dword(pdev, PCI_DEV_REG5, ®); /* set all bits to 0 except bits 28 & 27 */ reg &= P_CTL_TIM_VMAIN_AV_MSK; - sky2_pci_write32(hw, PCI_DEV_REG5, reg); + pci_write_config_dword(pdev, PCI_DEV_REG5, reg); - sky2_pci_write32(hw, PCI_CFG_REG_1, 0); + pci_write_config_dword(pdev, PCI_CFG_REG_1, 0); /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */ reg = sky2_read32(hw, B2_GP_IO); @@ -603,6 +604,7 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port) static void sky2_phy_power(struct sky2_hw *hw, unsigned port, int onoff) { + struct pci_dev *pdev = hw->pdev; u32 reg1; static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD }; @@ -611,15 +613,16 @@ static void sky2_phy_power(struct sky2_hw *hw, unsigned port, int onoff) if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) onoff = !onoff; - reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); + pci_read_config_dword(pdev, PCI_DEV_REG1, ®1); if (onoff) /* Turn off phy power saving */ reg1 &= ~phy_power[port]; else reg1 |= phy_power[port]; - sky2_pci_write32(hw, PCI_DEV_REG1, reg1); - sky2_pci_read32(hw, PCI_DEV_REG1); + pci_write_config_dword(pdev, PCI_DEV_REG1, reg1); + pci_read_config_dword(pdev, PCI_DEV_REG1, ®1); + udelay(100); } @@ -687,9 +690,9 @@ static void sky2_wol_init(struct sky2_port *sky2) sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl); /* Turn on legacy PCI-Express PME mode */ - reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); + pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®1); reg1 |= PCI_Y2_PME_LEGACY; - sky2_pci_write32(hw, PCI_DEV_REG1, reg1); + pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg1); /* block receiver */ sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); @@ -1306,9 +1309,9 @@ static int sky2_up(struct net_device *dev) struct sky2_port *osky2 = netdev_priv(otherdev); u16 cmd; - cmd = sky2_pci_read16(hw, cap + PCI_X_CMD); + pci_read_config_word(hw->pdev, cap + PCI_X_CMD, &cmd); cmd &= ~PCI_X_CMD_MAX_SPLIT; - sky2_pci_write16(hw, cap + PCI_X_CMD, cmd); + pci_write_config_word(hw->pdev, cap + PCI_X_CMD, cmd); sky2->rx_csum = 0; osky2->rx_csum = 0; @@ -2434,13 +2437,13 @@ static void sky2_hw_intr(struct sky2_hw *hw) if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) { u16 pci_err; - pci_err = sky2_pci_read16(hw, PCI_STATUS); + pci_read_config_word(pdev, PCI_STATUS, &pci_err); if (net_ratelimit()) dev_err(&pdev->dev, "PCI hardware error (0x%x)\n", pci_err); - sky2_pci_write16(hw, PCI_STATUS, - pci_err | PCI_STATUS_ERROR_BITS); + pci_write_config_word(pdev, PCI_STATUS, + pci_err | PCI_STATUS_ERROR_BITS); } if (status & Y2_IS_PCI_EXP) { @@ -2694,10 +2697,13 @@ static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk) static int __devinit sky2_init(struct sky2_hw *hw) { + int rc; u8 t8; - /* Enable all clocks */ - sky2_pci_write32(hw, PCI_DEV_REG3, 0); + /* Enable all clocks and check for bad PCI access */ + rc = pci_write_config_dword(hw->pdev, PCI_DEV_REG3, 0); + if (rc) + return rc; sky2_write8(hw, B0_CTST, CS_RST_CLR); @@ -2791,10 +2797,9 @@ static void sky2_reset(struct sky2_hw *hw) sky2_write8(hw, B0_CTST, CS_RST_CLR); /* clear PCI errors, if any */ - status = sky2_pci_read16(hw, PCI_STATUS); - - sky2_pci_write16(hw, PCI_STATUS, status | PCI_STATUS_ERROR_BITS); - + pci_read_config_word(pdev, PCI_STATUS, &status); + status |= PCI_STATUS_ERROR_BITS; + pci_write_config_word(pdev, PCI_STATUS, status); sky2_write8(hw, B0_CTST, CS_MRST_CLR); @@ -3606,26 +3611,31 @@ static int sky2_get_eeprom_len(struct net_device *dev) struct sky2_port *sky2 = netdev_priv(dev); u16 reg2; - reg2 = sky2_pci_read32(sky2->hw, PCI_DEV_REG2); + pci_read_config_word(sky2->hw->pdev, PCI_DEV_REG2, ®2); return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8); } -static u32 sky2_vpd_read(struct sky2_hw *hw, int cap, u16 offset) +static u32 sky2_vpd_read(struct pci_dev *pdev, int cap, u16 offset) { - sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset); + u32 val; - while (!(sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F)) - cpu_relax(); - return sky2_pci_read32(hw, cap + PCI_VPD_DATA); + pci_write_config_word(pdev, cap + PCI_VPD_ADDR, offset); + + do { + pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset); + } while (!(offset & PCI_VPD_ADDR_F)); + + pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &val); + return val; } -static void sky2_vpd_write(struct sky2_hw *hw, int cap, u16 offset, u32 val) +static void sky2_vpd_write(struct pci_dev *pdev, int cap, u16 offset, u32 val) { - sky2_pci_write32(hw, cap + PCI_VPD_DATA, val); - sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F); + pci_write_config_word(pdev, cap + PCI_VPD_DATA, val); + pci_write_config_dword(pdev, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F); do { - cpu_relax(); - } while (sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F); + pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset); + } while (offset & PCI_VPD_ADDR_F); } static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, @@ -3642,7 +3652,7 @@ static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom eeprom->magic = SKY2_EEPROM_MAGIC; while (length > 0) { - u32 val = sky2_vpd_read(sky2->hw, cap, offset); + u32 val = sky2_vpd_read(sky2->hw->pdev, cap, offset); int n = min_t(int, length, sizeof(val)); memcpy(data, &val, n); @@ -3672,10 +3682,10 @@ static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom int n = min_t(int, length, sizeof(val)); if (n < sizeof(val)) - val = sky2_vpd_read(sky2->hw, cap, offset); + val = sky2_vpd_read(sky2->hw->pdev, cap, offset); memcpy(&val, data, n); - sky2_vpd_write(sky2->hw, cap, offset, val); + sky2_vpd_write(sky2->hw->pdev, cap, offset, val); length -= n; data += n; @@ -4116,15 +4126,14 @@ static int __devinit sky2_probe(struct pci_dev *pdev, */ { u32 reg; - reg = sky2_pci_read32(hw, PCI_DEV_REG2); + pci_read_config_dword(pdev,PCI_DEV_REG2, ®); reg &= ~PCI_REV_DESC; - sky2_pci_write32(hw, PCI_DEV_REG2, reg); + pci_write_config_dword(pdev, PCI_DEV_REG2, reg); } #endif /* ring for status responses */ - hw->st_le = pci_alloc_consistent(hw->pdev, STATUS_LE_BYTES, - &hw->st_dma); + hw->st_le = pci_alloc_consistent(pdev, STATUS_LE_BYTES, &hw->st_dma); if (!hw->st_le) goto err_out_iounmap; @@ -4201,7 +4210,7 @@ err_out_free_netdev: free_netdev(dev); err_out_free_pci: sky2_write8(hw, B0_CTST, CS_RST_SET); - pci_free_consistent(hw->pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma); + pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma); err_out_iounmap: iounmap(hw->regs); err_out_free_hw: @@ -4312,7 +4321,7 @@ static int sky2_resume(struct pci_dev *pdev) if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_FE_P) - sky2_pci_write32(hw, PCI_DEV_REG3, 0); + pci_write_config_dword(pdev, PCI_DEV_REG3, 0); sky2_reset(hw); diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h index 6f5e162709b6..f4a3c2f403e5 100644 --- a/drivers/net/sky2.h +++ b/drivers/net/sky2.h @@ -2129,25 +2129,4 @@ static inline void gma_set_addr(struct sky2_hw *hw, unsigned port, unsigned reg, gma_write16(hw, port, reg+4,(u16) addr[2] | ((u16) addr[3] << 8)); gma_write16(hw, port, reg+8,(u16) addr[4] | ((u16) addr[5] << 8)); } - -/* PCI config space access */ -static inline u32 sky2_pci_read32(const struct sky2_hw *hw, unsigned reg) -{ - return sky2_read32(hw, Y2_CFG_SPC + reg); -} - -static inline u16 sky2_pci_read16(const struct sky2_hw *hw, unsigned reg) -{ - return sky2_read16(hw, Y2_CFG_SPC + reg); -} - -static inline void sky2_pci_write32(struct sky2_hw *hw, unsigned reg, u32 val) -{ - sky2_write32(hw, Y2_CFG_SPC + reg, val); -} - -static inline void sky2_pci_write16(struct sky2_hw *hw, unsigned reg, u16 val) -{ - sky2_write16(hw, Y2_CFG_SPC + reg, val); -} #endif