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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2014-07-06 13:45:43 +0000 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2014-07-06 13:45:43 +0000 |
| commit | df8741f92b5e5520d3335eb7e2fea4942a924e81 (patch) | |
| tree | 37825c04642a0fb7f510d2f052b4f3ca34ad3824 /target/linux/brcm47xx/patches-3.10 | |
| parent | ed0dc1c97eab36e3e26202c9704198ccaaf66836 (diff) | |
| download | upstream-df8741f92b5e5520d3335eb7e2fea4942a924e81.tar.gz upstream-df8741f92b5e5520d3335eb7e2fea4942a924e81.tar.bz2 upstream-df8741f92b5e5520d3335eb7e2fea4942a924e81.zip | |
brcm47xx: fix bcm4705 rebooting when initializing the switch.
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.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
SVN-Revision: 41527
Diffstat (limited to 'target/linux/brcm47xx/patches-3.10')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.10/791-tg3-no-pci-sleep.patch | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.10/791-tg3-no-pci-sleep.patch b/target/linux/brcm47xx/patches-3.10/791-tg3-no-pci-sleep.patch new file mode 100644 index 0000000000..f8b2c7c15f --- /dev/null +++ b/target/linux/brcm47xx/patches-3.10/791-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 +@@ -4221,7 +4221,8 @@ static void tg3_power_down(struct tg3 *t + tg3_power_down_prepare(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) |