sh: add interrupt ack code to sh3

This patch adds interrupt acknowledge code for external interrupt
sources on sh3 processors. Only really required for edge triggered
interrupts, but we ack regardless of sense configuration.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/include/asm-sh/hw_irq.h b/include/asm-sh/hw_irq.h
index 9d7003c03562..7438d1e21bc9 100644
--- a/include/asm-sh/hw_irq.h
+++ b/include/asm-sh/hw_irq.h
@@ -79,6 +79,10 @@ struct intc_desc {
         struct intc_sense_reg *sense_regs;
         unsigned int nr_sense_regs;
         char *name;
+#ifdef CONFIG_CPU_SH3
+        struct intc_mask_reg *ack_regs;
+        unsigned int nr_ack_regs;
+#endif
 };
 
 #define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
@@ -91,6 +95,18 @@ struct intc_desc symbol __initdata = {					\
         chipname,                                                       \
 }
 
+#ifdef CONFIG_CPU_SH3
+#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups,        \
+        mask_regs, prio_regs, sense_regs, ack_regs)                     \
+struct intc_desc symbol __initdata = {                                  \
+        _INTC_ARRAY(vectors), _INTC_ARRAY(groups),                      \
+        _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),                 \
+        _INTC_ARRAY(sense_regs),                                        \
+        chipname,                                                       \
+        _INTC_ARRAY(ack_regs),                                          \
+}
+#endif
+
 void __init register_intc_controller(struct intc_desc *desc);
 int intc_set_priority(unsigned int irq, unsigned int prio);