From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 4 Apr 2007 22:04:54 +0000 (+0000)
Subject: add pci latency timer workaround for atheros cards (from #1546)
X-Git-Tag: reboot~29503
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=769302fc498422f28a79811c8c2d6d5b1b2e0bf8;p=openwrt%2Fstaging%2Fchunkeey.git

add pci latency timer workaround for atheros cards (from #1546)

SVN-Revision: 6867
---

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 d9aa22b351..e18e486c01 100644
--- 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);
+
+	/* 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);