[BNX2]: Fix 5706 serdes link down bug.
1. Correct the MII expansion serdes control register definition.
2. Check an additional RUDI_INVALID bit when determining 5706S link.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 34aebc6..353c73f 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -5315,7 +5315,7 @@
bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
- if (an_dbg & MISC_SHDW_AN_DBG_NOSYNC)
+ if (an_dbg & (MISC_SHDW_AN_DBG_NOSYNC | MISC_SHDW_AN_DBG_RUDI_INVALID))
return 0;
bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_REG1);
diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index d8e0347..059e115 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -6346,11 +6346,12 @@
#define MII_BNX2_DSP_EXPAND_REG 0x0f00
#define MII_EXPAND_REG1 (MII_BNX2_DSP_EXPAND_REG | 1)
#define MII_EXPAND_REG1_RUDI_C 0x20
-#define MII_EXPAND_SERDES_CTL (MII_BNX2_DSP_EXPAND_REG | 2)
+#define MII_EXPAND_SERDES_CTL (MII_BNX2_DSP_EXPAND_REG | 3)
#define MII_BNX2_MISC_SHADOW 0x1c
#define MISC_SHDW_AN_DBG 0x6800
#define MISC_SHDW_AN_DBG_NOSYNC 0x0002
+#define MISC_SHDW_AN_DBG_RUDI_INVALID 0x0100
#define MISC_SHDW_MODE_CTL 0x7c00
#define MISC_SHDW_MODE_CTL_SIG_DET 0x0010
