| When the Ethernet controller is powered down and someone wants to |
| access the mdio bus like the witch driver (b53) the system crashed if |
| PCI_D3hot was set before. This patch deactivates this power sawing mode |
| when a switch driver is in use. |
| |
| --- a/drivers/net/ethernet/broadcom/tg3.c |
| +++ b/drivers/net/ethernet/broadcom/tg3.c |
| @@ -4279,7 +4279,8 @@ static int tg3_power_down_prepare(struct |
| static void tg3_power_down(struct tg3 *tp) |
| { |
| pci_wake_from_d3(tp->pdev, tg3_flag(tp, WOL_ENABLE)); |
| - pci_set_power_state(tp->pdev, PCI_D3hot); |
| + if (!tg3_flag(tp, ROBOSWITCH)) |
| + pci_set_power_state(tp->pdev, PCI_D3hot); |
| } |
| |
| static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u32 *speed, u8 *duplex) |