tg3: Prevent corruption at 10 / 100Mbps w CLKREQ

This patch disables CLKREQ at 10Mbps and 100Mbps to workaround a TX BD
corruption issue.  This problem only affects the 5784 and 5761 (and
57780 AX) ASIC revisions.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 599e490cf62c..53684b9b83f9 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2618,6 +2618,7 @@ struct tg3 {
 #define TG3_FLG3_RGMII_STD_IBND_DISABLE 0x00000100
 #define TG3_FLG3_RGMII_EXT_IBND_RX_EN   0x00000200
 #define TG3_FLG3_RGMII_EXT_IBND_TX_EN   0x00000400
+#define TG3_FLG3_CLKREQ_BUG             0x00000800
 
         struct timer_list               timer;
         u16                             timer_counter;
@@ -2656,7 +2657,10 @@ struct tg3 {
 
         int                             pm_cap;
         int                             msi_cap;
+        union {
         int                             pcix_cap;
+        int                             pcie_cap;
+        };
 
         struct mii_bus                  *mdio_bus;
         int                             mdio_irq[PHY_MAX_ADDR];