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Diffstat (limited to 'arch/mips/bcm47xx/irq.c')
-rw-r--r--arch/mips/bcm47xx/irq.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/mips/bcm47xx/irq.c b/arch/mips/bcm47xx/irq.c
index 325757acd02..8cf3833b2d2 100644
--- 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_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();
}