[SBUS]: Start cleaning up generic sbus support layer.

In particular, move the IRQ probing out to sparc32/sparc64
arch specific code where it belongs.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c
index 8812417247d4..8f7877ac858f 100644
--- a/arch/sparc64/kernel/sbus.c
+++ b/arch/sparc64/kernel/sbus.c
@@ -1225,3 +1225,24 @@ void __init sbus_iommu_init(int prom_node, struct sbus_bus *sbus)
 
         sysio_register_error_handlers(sbus);
 }
+
+void sbus_fill_device_irq(struct sbus_dev *sdev)
+{
+        struct linux_prom_irqs irqs[PROMINTR_MAX];
+        int len;
+
+        len = prom_getproperty(sdev->prom_node, "interrupts",
+                               (char *) irqs, sizeof(irqs));
+        if (len == -1 || len == 0) {
+                sdev->irqs[0] = 0;
+                sdev->num_irqs = 0;
+        } else {
+                unsigned int pri = irqs[0].pri;
+
+                sdev->num_irqs = 1;
+                if (pri < 0x20)
+                        pri += sdev->slot * 8;
+
+                sdev->irqs[0] = sbus_build_irq(sdev->bus, pri);
+        }
+}