[PATCH 8/9] r8169: more 8168dp support.

From: Francois Romieu
Date: Mon Nov 15 2010 - 17:56:27 EST

Next message: Tomoya MORINAGA: "[PATCH] CAN : Separate interface register from whole of register structure.CAN register of Intel PCH EG20T has 2 sets of interface register.To reduce whole of code size, separate interface register.As a result, the number of function also can be reduced."
Previous message: Francois Romieu: "[PATCH 7/9] r8169: magic."
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Adapted from version 8.019.00 of Realtek's r8168 driver

Signed-off-by: Francois Romieu <romieu@xxxxxxxxxxxxx>
---
drivers/net/r8169.c | 145 +++++++++++++++++++++++++++++++++++++++++++++++---
1 files changed, 136 insertions(+), 9 deletions(-)

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 949586c..fe93379 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -117,7 +117,8 @@ enum mac_version {
RTL_GIGA_MAC_VER_24 = 0x18, // 8168CP
RTL_GIGA_MAC_VER_25 = 0x19, // 8168D
RTL_GIGA_MAC_VER_26 = 0x1a, // 8168D
- RTL_GIGA_MAC_VER_27 = 0x1b // 8168DP
+ RTL_GIGA_MAC_VER_27 = 0x1b, // 8168DP
+ RTL_GIGA_MAC_VER_28 = 0x1c, // 8168DP
};

#define _R(NAME,MAC,MASK) \
@@ -154,7 +155,8 @@ static const struct {
_R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_24, 0xff7e1880), // PCI-E
_R("RTL8168d/8111d", RTL_GIGA_MAC_VER_25, 0xff7e1880), // PCI-E
_R("RTL8168d/8111d", RTL_GIGA_MAC_VER_26, 0xff7e1880), // PCI-E
- _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_27, 0xff7e1880) // PCI-E
+ _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_27, 0xff7e1880), // PCI-E
+ _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_28, 0xff7e1880) // PCI-E
};
#undef _R

@@ -297,6 +299,7 @@ enum rtl8168_registers {
#define OCPAR_FLAG 0x80000000
#define OCPAR_GPHY_WRITE_CMD 0x8000f060
#define OCPAR_GPHY_READ_CMD 0x0000f060
+ RDSAR1 = 0xd0 /* 8168c only. Undocumented on 8168dp */
};

enum rtl_register_content {
@@ -742,6 +745,40 @@ static int r8168dp_1_mdio_read(void __iomem *ioaddr, int reg_addr)
return RTL_R32(OCPDR) & OCPDR_DATA_MASK;
}

+#define R8168DP_1_MDIO_ACCESS_BIT 0x00020000
+
+static void r8168dp_2_mdio_start(void __iomem *ioaddr)
+{
+ RTL_W32(0xd0, RTL_R32(0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
+}
+
+static void r8168dp_2_mdio_stop(void __iomem *ioaddr)
+{
+ RTL_W32(0xd0, RTL_R32(0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
+}
+
+static void r8168dp_2_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
+{
+ r8168dp_2_mdio_start(ioaddr);
+
+ r8169_mdio_write(ioaddr, reg_addr, value);
+
+ r8168dp_2_mdio_stop(ioaddr);
+}
+
+static int r8168dp_2_mdio_read(void __iomem *ioaddr, int reg_addr)
+{
+ int value;
+
+ r8168dp_2_mdio_start(ioaddr);
+
+ value = r8169_mdio_read(ioaddr, reg_addr);
+
+ r8168dp_2_mdio_stop(ioaddr);
+
+ return value;
+}
+
static void rtl_writephy(struct rtl8169_private *tp, int location, u32 val)
{
tp->mdio_ops.write(tp->mmio_addr, location, val);
@@ -1479,9 +1516,12 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp,
/* 8168D family. */
{ 0x7cf00000, 0x28300000, RTL_GIGA_MAC_VER_26 },
{ 0x7cf00000, 0x28100000, RTL_GIGA_MAC_VER_25 },
- { 0x7c800000, 0x28800000, RTL_GIGA_MAC_VER_27 },
{ 0x7c800000, 0x28000000, RTL_GIGA_MAC_VER_26 },

+ /* 8168DP family. */
+ { 0x7cf00000, 0x28800000, RTL_GIGA_MAC_VER_27 },
+ { 0x7cf00000, 0x28a00000, RTL_GIGA_MAC_VER_28 },
+
/* 8168C family. */
{ 0x7cf00000, 0x3cb00000, RTL_GIGA_MAC_VER_24 },
{ 0x7cf00000, 0x3c900000, RTL_GIGA_MAC_VER_23 },
@@ -2870,6 +2910,22 @@ static void rtl8168d_3_hw_phy_config(struct rtl8169_private *tp)
rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
}

+static void rtl8168d_4_hw_phy_config(struct rtl8169_private *tp)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+
+ { 0x1f, 0x0007 },
+ { 0x1e, 0x002d },
+ { 0x18, 0x0040 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+ rtl_patchphy(tp, 0x0d, 1 << 5);
+}
+
static void rtl8102e_hw_phy_config(struct rtl8169_private *tp)
{
static const struct phy_reg phy_reg_init[] = {
@@ -2951,6 +3007,9 @@ static void rtl_hw_phy_config(struct net_device *dev)
case RTL_GIGA_MAC_VER_27:
rtl8168d_3_hw_phy_config(tp);
break;
+ case RTL_GIGA_MAC_VER_28:
+ rtl8168d_4_hw_phy_config(tp);
+ break;

default:
break;
@@ -3261,6 +3320,10 @@ static void __devinit rtl_init_mdio_ops(struct rtl8169_private *tp)
ops->write = r8168dp_1_mdio_write;
ops->read = r8168dp_1_mdio_read;
break;
+ case RTL_GIGA_MAC_VER_28:
+ ops->write = r8168dp_2_mdio_write;
+ ops->read = r8168dp_2_mdio_read;
+ break;
default:
ops->write = r8169_mdio_write;
ops->read = r8169_mdio_read;
@@ -3403,6 +3466,7 @@ static void __devinit rtl_init_pll_power_ops(struct rtl8169_private *tp)
case RTL_GIGA_MAC_VER_25:
case RTL_GIGA_MAC_VER_26:
case RTL_GIGA_MAC_VER_27:
+ case RTL_GIGA_MAC_VER_28:
ops->down = r8168_pll_power_down;
ops->up = r8168_pll_power_up;
break;
@@ -3625,8 +3689,10 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
dev->base_addr, dev->dev_addr,
(u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq);

- if (tp->mac_version == RTL_GIGA_MAC_VER_27)
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_28)) {
rtl8168_driver_start(tp);
+ }

rtl8169_init_phy(dev, tp);

@@ -3663,8 +3729,10 @@ static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
struct net_device *dev = pci_get_drvdata(pdev);
struct rtl8169_private *tp = netdev_priv(dev);

- if (tp->mac_version == RTL_GIGA_MAC_VER_27)
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_28)) {
rtl8168_driver_stop(tp);
+ }

flush_scheduled_work();

@@ -3747,11 +3815,19 @@ err_pm_runtime_put:
goto out;
}

-static void rtl8169_hw_reset(void __iomem *ioaddr)
+static void rtl8169_hw_reset(struct rtl8169_private *tp)
{
+ void __iomem *ioaddr = tp->mmio_addr;
+
/* Disable interrupts */
rtl8169_irq_mask_and_ack(ioaddr);

+ if (tp->mac_version == RTL_GIGA_MAC_VER_28) {
+ while (RTL_R8(TxPoll) & NPQ)
+ udelay(20);
+
+ }
+
/* Reset the chipset */
RTL_W8(ChipCmd, CmdReset);

@@ -3943,6 +4019,11 @@ static void rtl_csi_access_enable(void __iomem *ioaddr, u32 bits)
rtl_csi_write(ioaddr, 0x070c, csi | bits);
}

+static void rtl_csi_access_enable_1(void __iomem *ioaddr)
+{
+ rtl_csi_access_enable(ioaddr, 0x17000000);
+}
+
static void rtl_csi_access_enable_2(void __iomem *ioaddr)
{
rtl_csi_access_enable(ioaddr, 0x27000000);
@@ -3980,6 +4061,21 @@ static void rtl_disable_clock_request(struct pci_dev *pdev)
}
}

+static void rtl_enable_clock_request(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int cap = tp->pcie_cap;
+
+ if (cap) {
+ u16 ctl;
+
+ pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
+ ctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
+ pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
+ }
+}
+
#define R8168_CPCMD_QUIRK_MASK (\
EnableBist | \
Mac_dbgo_oe | \
@@ -4123,6 +4219,32 @@ static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev)
RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
}

+static void rtl_hw_start_8168d_4(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+ static const struct ephy_info e_info_8168d_4[] = {
+ { 0x0b, ~0, 0x48 },
+ { 0x19, 0x20, 0x50 },
+ { 0x0c, ~0, 0x20 }
+ };
+ int i;
+
+ rtl_csi_access_enable_1(ioaddr);
+
+ rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
+
+ RTL_W8(MaxTxPacketSize, TxPacketMax);
+
+ for (i = 0; i < ARRAY_SIZE(e_info_8168d_4); i++) {
+ const struct ephy_info *e = e_info_8168d_4 + i;
+ u16 w;
+
+ w = rtl_ephy_read(ioaddr, e->offset);
+ rtl_ephy_write(ioaddr, 0x03, (w & e->mask) | e->bits);
+ }
+
+ rtl_enable_clock_request(pdev);
+}
+
static void rtl_hw_start_8168(struct net_device *dev)
{
struct rtl8169_private *tp = netdev_priv(dev);
@@ -4200,6 +4322,10 @@ static void rtl_hw_start_8168(struct net_device *dev)
rtl_hw_start_8168d(ioaddr, pdev);
break;

+ case RTL_GIGA_MAC_VER_28:
+ rtl_hw_start_8168d_4(ioaddr, pdev);
+ break;
+
default:
printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
dev->name, tp->mac_version);
@@ -4612,7 +4738,7 @@ static void rtl8169_tx_timeout(struct net_device *dev)
{
struct rtl8169_private *tp = netdev_priv(dev);

- rtl8169_hw_reset(tp->mmio_addr);
+ rtl8169_hw_reset(tp);

/* Let's wait a bit while any (async) irq lands on */
rtl8169_schedule_work(dev, rtl8169_reset_task);
@@ -4770,7 +4896,6 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev)
{
struct rtl8169_private *tp = netdev_priv(dev);
struct pci_dev *pdev = tp->pci_dev;
- void __iomem *ioaddr = tp->mmio_addr;
u16 pci_status, pci_cmd;

pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
@@ -4801,13 +4926,15 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev)

/* The infamous DAC f*ckup only happens at boot time */
if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
+ void __iomem *ioaddr = tp->mmio_addr;
+
netif_info(tp, intr, dev, "disabling PCI DAC\n");
tp->cp_cmd &= ~PCIDAC;
RTL_W16(CPlusCmd, tp->cp_cmd);
dev->features &= ~NETIF_F_HIGHDMA;
}

- rtl8169_hw_reset(ioaddr);
+ rtl8169_hw_reset(tp);

rtl8169_schedule_work(dev, rtl8169_reinit_task);
}
--
1.7.3.2

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Next message: Tomoya MORINAGA: "[PATCH] CAN : Separate interface register from whole of register structure.CAN register of Intel PCH EG20T has 2 sets of interface register.To reduce whole of code size, separate interface register.As a result, the number of function also can be reduced."
Previous message: Francois Romieu: "[PATCH 7/9] r8169: magic."
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