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authorRafał Miłecki <zajec5@gmail.com>2015-04-23 11:31:54 +0000
committerRafał Miłecki <zajec5@gmail.com>2015-04-23 11:31:54 +0000
commit2d8d0aa3529a78e2d74cda928fb167e5d3c73ac5 (patch)
treefe7bb924c8a8d42f720b493840b06a800d0f569c /target/linux/brcm47xx/patches-4.0/791-tg3-no-pci-sleep.patch
parent912768cf9d2b336edfb0a72f79c38738a1591ba1 (diff)
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brcm47xx: add patches for kernel 4.0
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45570 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm47xx/patches-4.0/791-tg3-no-pci-sleep.patch')
-rw-r--r--target/linux/brcm47xx/patches-4.0/791-tg3-no-pci-sleep.patch17
1 files changed, 17 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-4.0/791-tg3-no-pci-sleep.patch b/target/linux/brcm47xx/patches-4.0/791-tg3-no-pci-sleep.patch
new file mode 100644
index 0000000000..35a816d8c2
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.0/791-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)