sh: Drop CPU subtype IRQ headers.

This drops the various IRQ headers that were floating around
and primarily providing hardcoded IRQ definitions for the
various CPU subtypes. This quickly got to be an unmaintainable
mess, made even more evident by the subtle breakage introduced
by the SH-2 and SH-2A changes.

Now that subtypes are able to register IRQ maps directly, just
rip all of the headers out.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/cpu/irq/intc2.c

@@ -11,22 +11,29 @@
  * Hitachi 7751, the STM ST40 STB1, SH7760, and SH7780.
  */
 #include <linux/kernel.h>
-#include <linux/irq.h>
+#include <linux/interrupt.h>
 #include <linux/io.h>
-#include <asm/system.h>
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7760)
+#define INTC2_BASE	0xfe080000
+#define INTC2_INTMSK	(INTC2_BASE + 0x40)
+#define INTC2_INTMSKCLR	(INTC2_BASE + 0x60)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
+#define INTC2_BASE	0xffd40000
+#define INTC2_INTMSK	(INTC2_BASE + 0x38)
+#define INTC2_INTMSKCLR	(INTC2_BASE + 0x3c)
+#endif
 
 static void disable_intc2_irq(unsigned int irq)
 {
 	struct intc2_data *p = get_irq_chip_data(irq);
-	ctrl_outl(1 << p->msk_shift,
-		  INTC2_BASE + INTC2_INTMSK_OFFSET + p->msk_offset);
+	ctrl_outl(1 << p->msk_shift, INTC2_INTMSK + p->msk_offset);
 }
 
 static void enable_intc2_irq(unsigned int irq)
 {
 	struct intc2_data *p = get_irq_chip_data(irq);
-	ctrl_outl(1 << p->msk_shift,
-		  INTC2_BASE + INTC2_INTMSKCLR_OFFSET + p->msk_offset);
+	ctrl_outl(1 << p->msk_shift, INTC2_INTMSKCLR + p->msk_offset);
 }
 
 static struct irq_chip intc2_irq_chip = {
@@ -61,12 +68,10 @@ void make_intc2_irq(struct intc2_data *table, unsigned int nr_irqs)
 		/* Set the priority level */
 		local_irq_save(flags);
 
-		ipr = ctrl_inl(INTC2_BASE + INTC2_INTPRI_OFFSET +
-			       p->ipr_offset);
+		ipr = ctrl_inl(INTC2_BASE + p->ipr_offset);
 		ipr &= ~(0xf << p->ipr_shift);
 		ipr |= p->priority << p->ipr_shift;
-		ctrl_outl(ipr, INTC2_BASE + INTC2_INTPRI_OFFSET +
-			  p->ipr_offset);
+		ctrl_outl(ipr, INTC2_BASE + p->ipr_offset);
 
 		local_irq_restore(flags);