brcm47xx: add patches for kernel 4.0
[openwrt/svn-archive/archive.git] / target / linux / brcm47xx / patches-4.0 / 791-tg3-no-pci-sleep.patch
1 When the Ethernet controller is powered down and someone wants to
2 access the mdio bus like the witch driver (b53) the system crashed if
3 PCI_D3hot was set before. This patch deactivates this power sawing mode
4 when a switch driver is in use.
5
6 --- a/drivers/net/ethernet/broadcom/tg3.c
7 +++ b/drivers/net/ethernet/broadcom/tg3.c
8 @@ -4263,7 +4263,8 @@ static int tg3_power_down_prepare(struct
9 static void tg3_power_down(struct tg3 *tp)
10 {
11 pci_wake_from_d3(tp->pdev, tg3_flag(tp, WOL_ENABLE));
12 - pci_set_power_state(tp->pdev, PCI_D3hot);
13 + if (!tg3_flag(tp, ROBOSWITCH))
14 + pci_set_power_state(tp->pdev, PCI_D3hot);
15 }
16
17 static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)