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authorfran├žois romieu <romieu@fr.zoreil.com>2012-12-07 11:20:21 +0000
committerDavid S. Miller <davem@davemloft.net>2012-12-08 20:27:33 -0500
commit9ecb9aabaf634677c77af467f4e3028b09d7bcda (patch)
treeb5346766a36bc2b4fc8e0d610926d4da50e5ec4d /drivers/net/ethernet/realtek
parentba501666fa8d44344a1f7e5158ba973491a70671 (diff)
downloadlinux-9ecb9aabaf634677c77af467f4e3028b09d7bcda.tar.gz
r8169: workaround for missing extended GigaMAC registers
GigaMAC registers have been reported left unitialized in several situations: - after cold boot from power-off state - after S3 resume Tweaking rtl_hw_phy_config takes care of both. This patch removes an excess entry (",") at the end of the exgmac_reg array as well. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: Wang YanQing <udknight@gmail.com> Cc: Hayes Wang <hayeswang@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.c42
1 files changed, 24 insertions, 18 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 891feee49ba..ed96f309bca 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -3120,6 +3120,23 @@ static void rtl8168e_1_hw_phy_config(struct rtl8169_private *tp)
rtl_writephy(tp, 0x0d, 0x0000);
}
+static void rtl_rar_exgmac_set(struct rtl8169_private *tp, u8 *addr)
+{
+ const u16 w[] = {
+ addr[0] | (addr[1] << 8),
+ addr[2] | (addr[3] << 8),
+ addr[4] | (addr[5] << 8)
+ };
+ const struct exgmac_reg e[] = {
+ { .addr = 0xe0, ERIAR_MASK_1111, .val = w[0] | (w[1] << 16) },
+ { .addr = 0xe4, ERIAR_MASK_1111, .val = w[2] },
+ { .addr = 0xf0, ERIAR_MASK_1111, .val = w[0] << 16 },
+ { .addr = 0xf4, ERIAR_MASK_1111, .val = w[1] | (w[2] << 16) }
+ };
+
+ rtl_write_exgmac_batch(tp, e, ARRAY_SIZE(e));
+}
+
static void rtl8168e_2_hw_phy_config(struct rtl8169_private *tp)
{
static const struct phy_reg phy_reg_init[] = {
@@ -3204,6 +3221,9 @@ static void rtl8168e_2_hw_phy_config(struct rtl8169_private *tp)
rtl_writephy(tp, 0x1f, 0x0000);
r8168_aldps_enable_1(tp);
+
+ /* Broken BIOS workaround: feed GigaMAC registers with MAC address. */
+ rtl_rar_exgmac_set(tp, tp->dev->dev_addr);
}
static void rtl8168f_hw_phy_config(struct rtl8169_private *tp)
@@ -3740,33 +3760,19 @@ static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
{
void __iomem *ioaddr = tp->mmio_addr;
- u32 high;
- u32 low;
-
- low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
- high = addr[4] | (addr[5] << 8);
rtl_lock_work(tp);
RTL_W8(Cfg9346, Cfg9346_Unlock);
- RTL_W32(MAC4, high);
+ RTL_W32(MAC4, addr[4] | addr[5] << 8);
RTL_R32(MAC4);
- RTL_W32(MAC0, low);
+ RTL_W32(MAC0, addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
RTL_R32(MAC0);
- if (tp->mac_version == RTL_GIGA_MAC_VER_34) {
- const struct exgmac_reg e[] = {
- { .addr = 0xe0, ERIAR_MASK_1111, .val = low },
- { .addr = 0xe4, ERIAR_MASK_1111, .val = high },
- { .addr = 0xf0, ERIAR_MASK_1111, .val = low << 16 },
- { .addr = 0xf4, ERIAR_MASK_1111, .val = high << 16 |
- low >> 16 },
- };
-
- rtl_write_exgmac_batch(tp, e, ARRAY_SIZE(e));
- }
+ if (tp->mac_version == RTL_GIGA_MAC_VER_34)
+ rtl_rar_exgmac_set(tp, addr);
RTL_W8(Cfg9346, Cfg9346_Lock);