diff options
author | James <> | 2015-09-26 12:29:31 +0100 |
---|---|---|
committer | James <> | 2015-09-26 12:29:31 +0100 |
commit | 626d9efa74685720020e816f3a917b7591d3cf7a (patch) | |
tree | d22eef73ae82287b30a1140decb4fc806d39d621 /target/linux/brcm47xx/patches-3.18/791-tg3-no-pci-sleep.patch | |
download | trunk-47048-626d9efa74685720020e816f3a917b7591d3cf7a.tar.gz trunk-47048-626d9efa74685720020e816f3a917b7591d3cf7a.tar.bz2 trunk-47048-626d9efa74685720020e816f3a917b7591d3cf7a.zip |
trunk-47048
Diffstat (limited to 'target/linux/brcm47xx/patches-3.18/791-tg3-no-pci-sleep.patch')
-rw-r--r-- | target/linux/brcm47xx/patches-3.18/791-tg3-no-pci-sleep.patch | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.18/791-tg3-no-pci-sleep.patch b/target/linux/brcm47xx/patches-3.18/791-tg3-no-pci-sleep.patch new file mode 100644 index 0000000..35a816d --- /dev/null +++ b/target/linux/brcm47xx/patches-3.18/791-tg3-no-pci-sleep.patch @@ -0,0 +1,17 @@ +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 +@@ -4263,7 +4263,8 @@ 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, u16 *speed, u8 *duplex) |