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add pci latency timer workaround for atheros cards (from #1546)
[openwrt-10.03/.git]
/
target
/
linux
/
brcm47xx-2.6
/
files
/
drivers
/
ssb
/
driver_pci
/
pcicore.c
diff --git
a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c
b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c
index d9aa22b351376c79d59176a567e037dc9eaa34eb..e18e486c01d7da71c1c3af2ff665f813038dd1c7 100644
(file)
--- a/
target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c
+++ b/
target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c
@@
-92,6
+92,9
@@
static void __init ssb_fixup_pcibridge(struct pci_dev *dev)
/* Enable PCI bridge BAR1 prefetch and burst */
pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3);
/* Enable PCI bridge BAR1 prefetch and burst */
pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3);
+
+ /* Make sure our latency is high enough to handle the devices behind us */
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xa8);
}
DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge);
}
DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge);