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authorChun-Hao Lin <hau@realtek.com>2014-12-10 16:28:38 +0300
committerDavid S. Miller <davem@davemloft.net>2014-12-12 05:38:52 +0300
commit5fbea33740aeb948422d7b7e8aafbeac362264b2 (patch)
treefa7c700c3171cd19c8f391b142b92ca3c2c77cab /drivers/net/ethernet/realtek
parent7855f675e6cbccb565c41dfeef708b8d7e6444ff (diff)
downloadlinux-5fbea33740aeb948422d7b7e8aafbeac362264b2.tar.xz
r8169:update rtl8168g pcie ephy parameter
Add ephy parameter to rtl8168g. Also change the common function of rtl8168g from "rtl_hw_start_8168g_1" to "rtl_hw_start_8168g". And function "rtl_hw_start_8168g_1" is used for setting rtl8168g hardware parameters. Following is the explanation of what hardware parameter change for. rtl8168g may erroneous judge the PCIe signal quality and show the error bit on PCI configuration space when in PCIe low power mode. The following ephy parameters are for above issue. { 0x00, 0x0000, 0x0008 } { 0x0c, 0x37d0, 0x0820 } { 0x1e, 0x0000, 0x0001 } rtl8168g may return to PCIe L0 from PCIe L0s low power mode too slow. The following ephy parameter is for above issue. { 0x19, 0x8000, 0x0000 } Signed-off-by: Chunhao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/realtek')
-rw-r--r--drivers/net/ethernet/realtek/r8169.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 088136b37ebe..14a1c5cec3a5 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -5919,7 +5919,7 @@ static void rtl_hw_start_8411(struct rtl8169_private *tp)
rtl_w0w1_eri(tp, 0x0d4, ERIAR_MASK_0011, 0x0c00, 0x0000, ERIAR_EXGMAC);
}
-static void rtl_hw_start_8168g_1(struct rtl8169_private *tp)
+static void rtl_hw_start_8168g(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;
struct pci_dev *pdev = tp->pci_dev;
@@ -5954,6 +5954,24 @@ static void rtl_hw_start_8168g_1(struct rtl8169_private *tp)
rtl_pcie_state_l2l3_enable(tp, false);
}
+static void rtl_hw_start_8168g_1(struct rtl8169_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ static const struct ephy_info e_info_8168g_1[] = {
+ { 0x00, 0x0000, 0x0008 },
+ { 0x0c, 0x37d0, 0x0820 },
+ { 0x1e, 0x0000, 0x0001 },
+ { 0x19, 0x8000, 0x0000 }
+ };
+
+ rtl_hw_start_8168g(tp);
+
+ /* disable aspm and clock request before access ephy */
+ RTL_W8(Config2, RTL_R8(Config2) & ~ClkReqEn);
+ RTL_W8(Config5, RTL_R8(Config5) & ~ASPM_en);
+ rtl_ephy_init(tp, e_info_8168g_1, ARRAY_SIZE(e_info_8168g_1));
+}
+
static void rtl_hw_start_8168g_2(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;
@@ -5964,7 +5982,7 @@ static void rtl_hw_start_8168g_2(struct rtl8169_private *tp)
{ 0x1e, 0xffff, 0x20eb }
};
- rtl_hw_start_8168g_1(tp);
+ rtl_hw_start_8168g(tp);
/* disable aspm and clock request before access ephy */
RTL_W8(Config2, RTL_R8(Config2) & ~ClkReqEn);
@@ -5983,7 +6001,7 @@ static void rtl_hw_start_8411_2(struct rtl8169_private *tp)
{ 0x1e, 0x0000, 0x2000 }
};
- rtl_hw_start_8168g_1(tp);
+ rtl_hw_start_8168g(tp);
/* disable aspm and clock request before access ephy */
RTL_W8(Config2, RTL_R8(Config2) & ~ClkReqEn);