tg3: Tune 5785 clock switching

This patch tunes the timeouts the CPMU uses to decide when to switch
from the clocks output by the PHY to internal clock sources.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 636008c..d096e10 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -524,6 +524,10 @@
 /* 0x598 --> 0x5a0 unused */
 #define MAC_PHYCFG1			0x000005a0
 #define  MAC_PHYCFG1_RGMII_INT		 0x00000001
+#define  MAC_PHYCFG1_RXCLK_TO_MASK	 0x00001ff0
+#define  MAC_PHYCFG1_RXCLK_TIMEOUT	 0x00001000
+#define  MAC_PHYCFG1_TXCLK_TO_MASK	 0x01ff0000
+#define  MAC_PHYCFG1_TXCLK_TIMEOUT	 0x01000000
 #define  MAC_PHYCFG1_RGMII_EXT_RX_DEC	 0x02000000
 #define  MAC_PHYCFG1_RGMII_SND_STAT_EN	 0x04000000
 #define  MAC_PHYCFG1_TXC_DRV		 0x20000000