[TG3]: Do not try to access NIC_SRAM_DATA_SIG on Sun parts.

Sun does't put an SEEPROM behind the tigon3 chip, among other things,
so accesses to these areas just give bus timeouts.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index caf4102b54ce..31a16fa67558 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -9097,6 +9097,10 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
         tp->phy_id = PHY_ID_INVALID;
         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
 
+        /* Do not even try poking around in here on Sun parts.  */
+        if (tp->tg3_flags2 & TG3_FLG2_SUN_570X)
+                return;
+
         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
                 u32 nic_cfg, led_cfg;