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authorRafał Miłecki <rafal@milecki.pl>2021-10-21 17:26:56 +0200
committerRafał Miłecki <rafal@milecki.pl>2021-10-21 17:38:17 +0200
commitd88f3b8a427acd1aef7ec3fc4c8e47c7a665d7d0 (patch)
tree84f6450cb9306e9c5150899fcc939e23334bc1ec /target/linux/bcm47xx/patches-5.10/791-tg3-no-pci-sleep.patch
parent9b880f09f394049e0629e3c9d4061f431a6b19a8 (diff)
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bcm47xx: add kernel 5.10 support
It's for *development* only as it doesn't work with lzma-loader due to bigger size. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Diffstat (limited to 'target/linux/bcm47xx/patches-5.10/791-tg3-no-pci-sleep.patch')
-rw-r--r--target/linux/bcm47xx/patches-5.10/791-tg3-no-pci-sleep.patch17
1 files changed, 17 insertions, 0 deletions
diff --git a/target/linux/bcm47xx/patches-5.10/791-tg3-no-pci-sleep.patch b/target/linux/bcm47xx/patches-5.10/791-tg3-no-pci-sleep.patch
new file mode 100644
index 0000000000..50edfc3b41
--- /dev/null
+++ b/target/linux/bcm47xx/patches-5.10/791-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
+@@ -4273,7 +4273,8 @@ 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)