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tg3: Prevent corruption at 10 / 100Mbps w CLKREQ

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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>
This commit is contained in:
Matt Carlson
2008-11-21 17:18:16 -08:00
committed by David S. Miller
parent 52f4490c3b
commit 5e7dfd0fb9
2 changed files with 67 additions and 14 deletions
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4
drivers/net/tg3.h
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@ -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];