[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

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 (file)
index 0000000..6dcc34b
--- /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;