From f3014c0cb60ec15a0a2542cbfae7e8d888aa5cf8 Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Tue, 29 Jan 2008 21:33:03 -0800
Subject: [PATCH] [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>
---
drivers/net/bnx2.c | 2 +-
drivers/net/bnx2.h | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 34aebc6e7589..353c73fa3433 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -5315,7 +5315,7 @@ bnx2_5706_serdes_has_link(struct bnx2 *bp)
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 d8e034700c36..059e1159647f 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -6346,11 +6346,12 @@ struct l2_fhdr {
#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
--
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