[brcm47xx] On embedded devices we must not route the interrupts through the PCI

core, if our host-bus is not PCI
Reported-by: Steve Brown <sbrown@cortland.com>
Signed-off-by: Michael Buesch <mb@bu3sch.d>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11750 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 26 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-2.6.25/630-ssb-fix-irq-init.patch b/target/linux/brcm47xx/patches-2.6.25/630-ssb-fix-irq-init.patch
new file mode 100644
index 000000000..6dcc34b42
--- /dev/null
+++ b/target/linux/brcm47xx/patches-2.6.25/630-ssb-fix-irq-init.patch
@@ -0,0 +1,26 @@
+Subject: [OpenWrt-Devel] [PATCH] ssb-pcicore: Fix IRQ-vector init on embedded devices
+
+On embedded devices we must not route the interrupts through
+the PCI core, if our host-bus is not PCI.
+
+Reported-by: Steve Brown <sbrown@cortland.com>
+Signed-off-by: Michael Buesch <mb@bu3sch.de>
+
+Index: wireless-testing/drivers/ssb/driver_pcicore.c
+===================================================================
+--- wireless-testing.orig/drivers/ssb/driver_pcicore.c	2008-06-10 13:58:23.000000000 +0200
++++ wireless-testing/drivers/ssb/driver_pcicore.c	2008-07-04 23:16:02.000000000 +0200
+@@ -537,6 +537,13 @@ int ssb_pcicore_dev_irqvecs_enable(struc
+ 	int err = 0;
+ 	u32 tmp;
+ 
++	if (dev->bus->bustype != SSB_BUSTYPE_PCI) {
++		/* This SSB device is not on a PCI host-bus. So the IRQs are
++		 * not routed through the PCI core.
++		 * So we must not enable routing through the PCI core. */
++		goto out;
++	}
++
+ 	if (!pdev)
+ 		goto out;
+ 	bus = pdev->bus;