brcm47xx: add initial support for devices with bcma bus.

Ethernet and wifi are not working and this is highly experimental.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27301 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 37 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-3.0/0013-bcm47xx-fix-irq-assignment-for-new-SoCs.patch b/target/linux/brcm47xx/patches-3.0/0013-bcm47xx-fix-irq-assignment-for-new-SoCs.patch
new file mode 100644
index 0000000000..a40e726956
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.0/0013-bcm47xx-fix-irq-assignment-for-new-SoCs.patch
@@ -0,0 +1,37 @@
+From 360eb82fd303ac24590a1b99ad1866162f6b0171 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Mon, 6 Jun 2011 00:07:38 +0200
+Subject: [PATCH 13/14] bcm47xx: fix irq assignment for new SoCs.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ arch/mips/bcm47xx/irq.c |   12 ++++++++++++
+ 1 files changed, 12 insertions(+), 0 deletions(-)
+
+--- a/arch/mips/bcm47xx/irq.c
++++ b/arch/mips/bcm47xx/irq.c
+@@ -26,6 +26,7 @@
+ #include <linux/interrupt.h>
+ #include <linux/irq.h>
+ #include <asm/irq_cpu.h>
++#include <bcm47xx.h>
+ 
+ void plat_irq_dispatch(void)
+ {
+@@ -51,5 +52,16 @@ void plat_irq_dispatch(void)
+ 
+ void __init arch_init_irq(void)
+ {
++#ifdef CONFIG_BCM47XX_BCMA
++	if (bcm47xx_active_bus_type == BCM47XX_BUS_TYPE_BCMA) {
++		bcma_write32(bcm47xx_bus.bcma.bus.drv_mips.core,
++			     BCMA_MIPS_MIPS74K_INTMASK(5), 1 << 31);
++		/*
++		 * the kernel reads the timer irq from some register and thinks
++		 * it's #5, but we offset it by 2 and route to #7
++		 */
++		cp0_compare_irq = 7;
++	}
++#endif
+ 	mips_cpu_irq_init();
+ }