[PATCH] sh: IRQ handler updates

This moves the various IRQ controller drivers into a new subdirectory, and
also extends the INTC2 IRQ handler to also deal with SH7760 and SH7780
interrupts, rather than just ST-40.

The old CONFIG_SH_GENERIC has also been removed from the IRQ definitions, as
new ports are expected to be based off of CONFIG_SH_UNKNOWN.  Since there are
plenty of incompatible machvecs, CONFIG_SH_GENERIC doesn't make sense anymore.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 78 insertions, 65 deletions

diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h
index 614a8c13b721..060ec3c27207 100644
--- a/include/asm-sh/irq.h
+++ b/include/asm-sh/irq.h
@@ -15,13 +15,20 @@
 #include <asm/machvec.h>
 #include <asm/ptrace.h>         /* for pt_regs */
 
-#if defined(CONFIG_SH_HP600) || \
+#if defined(CONFIG_SH_HP6XX) || \
     defined(CONFIG_SH_RTS7751R2D) || \
     defined(CONFIG_SH_HS7751RVOIP) || \
-    defined(CONFIG_SH_SH03)
+    defined(CONFIG_SH_HS7751RVOIP) || \
+    defined(CONFIG_SH_SH03) || \
+    defined(CONFIG_SH_R7780RP) || \
+    defined(CONFIG_SH_LANDISK)
 #include <asm/mach/ide.h>
 #endif
 
+#ifndef CONFIG_CPU_SUBTYPE_SH7780
+
+#define INTC_DMAC0_MSK  0
+
 #if defined(CONFIG_CPU_SH3)
 #define INTC_IPRA       0xfffffee2UL
 #define INTC_IPRB       0xfffffee4UL
@@ -235,8 +242,9 @@
 #define SCIF1_IPR_ADDR  INTC_IPRB
 #define SCIF1_IPR_POS   1
 #define SCIF1_PRIORITY  3
-#endif
-#endif
+#endif /* ST40STB1 */
+
+#endif /* 775x / SH4-202 / ST40STB1 */
 
 /* NR_IRQS is made from three components:
  *   1. ONCHIP_NR_IRQS - number of IRLS + on-chip peripherial modules
@@ -245,37 +253,35 @@
  */
 
 /* 1. ONCHIP_NR_IRQS */
-#ifdef CONFIG_SH_GENERIC
+#if defined(CONFIG_CPU_SUBTYPE_SH7604)
+# define ONCHIP_NR_IRQS 24      // Actually 21
+#elif defined(CONFIG_CPU_SUBTYPE_SH7707)
+# define ONCHIP_NR_IRQS 64
+# define PINT_NR_IRQS   16
+#elif defined(CONFIG_CPU_SUBTYPE_SH7708)
+# define ONCHIP_NR_IRQS 32
+#elif defined(CONFIG_CPU_SUBTYPE_SH7709) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7705)
+# define ONCHIP_NR_IRQS 64      // Actually 61
+# define PINT_NR_IRQS   16
+#elif defined(CONFIG_CPU_SUBTYPE_SH7750)
+# define ONCHIP_NR_IRQS 48      // Actually 44
+#elif defined(CONFIG_CPU_SUBTYPE_SH7751)
+# define ONCHIP_NR_IRQS 72
+#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
+# define ONCHIP_NR_IRQS 112     /* XXX */
+#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
+# define ONCHIP_NR_IRQS 72
+#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
+# define ONCHIP_NR_IRQS 144
+#elif defined(CONFIG_CPU_SUBTYPE_SH7300)
+# define ONCHIP_NR_IRQS 109
+#elif defined(CONFIG_SH_UNKNOWN)        /* Most be last */
 # define ONCHIP_NR_IRQS 144
-#else
-# if defined(CONFIG_CPU_SUBTYPE_SH7604)
-#  define ONCHIP_NR_IRQS 24     // Actually 21
-# elif defined(CONFIG_CPU_SUBTYPE_SH7707)
-#  define ONCHIP_NR_IRQS 64
-#  define PINT_NR_IRQS   16
-# elif defined(CONFIG_CPU_SUBTYPE_SH7708)
-#  define ONCHIP_NR_IRQS 32
-# elif defined(CONFIG_CPU_SUBTYPE_SH7709) || \
-       defined(CONFIG_CPU_SUBTYPE_SH7705)
-#  define ONCHIP_NR_IRQS 64     // Actually 61
-#  define PINT_NR_IRQS   16
-# elif defined(CONFIG_CPU_SUBTYPE_SH7750)
-#  define ONCHIP_NR_IRQS 48     // Actually 44
-# elif defined(CONFIG_CPU_SUBTYPE_SH7751)
-#  define ONCHIP_NR_IRQS 72
-# elif defined(CONFIG_CPU_SUBTYPE_SH7760)
-#  define ONCHIP_NR_IRQS 110
-# elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
-#  define ONCHIP_NR_IRQS 72
-# elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
-#  define ONCHIP_NR_IRQS 144
-# elif defined(CONFIG_CPU_SUBTYPE_SH7300)
-#  define ONCHIP_NR_IRQS 109
-# endif
 #endif
 
 /* 2. PINT_NR_IRQS */
-#ifdef CONFIG_SH_GENERIC
+#ifdef CONFIG_SH_UNKNOWN
 # define PINT_NR_IRQS 16
 #else
 # ifndef PINT_NR_IRQS
@@ -288,22 +294,22 @@
 #endif
 
 /* 3. OFFCHIP_NR_IRQS */
-#ifdef CONFIG_SH_GENERIC
+#if defined(CONFIG_HD64461)
+# define OFFCHIP_NR_IRQS 18
+#elif defined (CONFIG_SH_BIGSUR) /* must be before CONFIG_HD64465 */
+# define OFFCHIP_NR_IRQS 48
+#elif defined(CONFIG_HD64465)
 # define OFFCHIP_NR_IRQS 16
+#elif defined (CONFIG_SH_EC3104)
+# define OFFCHIP_NR_IRQS 16
+#elif defined (CONFIG_SH_DREAMCAST)
+# define OFFCHIP_NR_IRQS 96
+#elif defined (CONFIG_SH_TITAN)
+# define OFFCHIP_NR_IRQS 4
+#elif defined(CONFIG_SH_UNKNOWN)
+# define OFFCHIP_NR_IRQS 16     /* Must also be last */
 #else
-# if defined(CONFIG_HD64461)
-#  define OFFCHIP_NR_IRQS 18
-# elif defined (CONFIG_SH_BIGSUR) /* must be before CONFIG_HD64465 */
-#  define OFFCHIP_NR_IRQS 48
-# elif defined(CONFIG_HD64465)
-#  define OFFCHIP_NR_IRQS 16
-# elif defined (CONFIG_SH_EC3104)
-#  define OFFCHIP_NR_IRQS 16
-# elif defined (CONFIG_SH_DREAMCAST)
-#  define OFFCHIP_NR_IRQS 96
-# else
-#  define OFFCHIP_NR_IRQS 0
-# endif
+# define OFFCHIP_NR_IRQS 0
 #endif
 
 #if OFFCHIP_NR_IRQS > 0
@@ -313,16 +319,6 @@
 /* NR_IRQS. 1+2+3 */
 #define NR_IRQS (ONCHIP_NR_IRQS + PINT_NR_IRQS + OFFCHIP_NR_IRQS)
 
-/* In a generic kernel, NR_IRQS is an upper bound, and we should use
- * ACTUAL_NR_IRQS (which uses the machine vector) to get the correct value.
- */
-#ifdef CONFIG_SH_GENERIC
-# define ACTUAL_NR_IRQS (sh_mv.mv_nr_irqs)
-#else
-# define ACTUAL_NR_IRQS NR_IRQS
-#endif
-
-
 extern void disable_irq(unsigned int);
 extern void disable_irq_nosync(unsigned int);
 extern void enable_irq(unsigned int);
@@ -542,9 +538,6 @@ extern int ipr_irq_demux(int irq);
 
 extern int ipr_irq_demux(int irq);
 #define __irq_demux(irq) ipr_irq_demux(irq)
-
-#else
-#define __irq_demux(irq) irq
 #endif /* CONFIG_CPU_SUBTYPE_SH7707 || CONFIG_CPU_SUBTYPE_SH7709 */
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7751) || \
@@ -557,18 +550,35 @@ extern int ipr_irq_demux(int irq);
 #define INTC_ICR_IRLM   (1<<7)
 #endif
 
-#ifdef CONFIG_CPU_SUBTYPE_ST40STB1
+#else
+#include <asm/irq-sh7780.h>
+#endif
 
+/* SH with INTC2-style interrupts */
+#ifdef CONFIG_CPU_HAS_INTC2_IRQ
+#if defined(CONFIG_CPU_SUBTYPE_ST40STB1)
+#define INTC2_BASE      0xfe080000
 #define INTC2_FIRST_IRQ 64
-#define NR_INTC2_IRQS 25
-
+#define INTC2_INTREQ_OFFSET     0x20
+#define INTC2_INTMSK_OFFSET     0x40
+#define INTC2_INTMSKCLR_OFFSET  0x60
+#define NR_INTC2_IRQS   25
+#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
 #define INTC2_BASE      0xfe080000
-#define INTC2_INTC2MODE (INTC2_BASE+0x80)
-
-#define INTC2_INTPRI_OFFSET     0x00
+#define INTC2_FIRST_IRQ 48      /* INTEVT 0x800 */
 #define INTC2_INTREQ_OFFSET     0x20
 #define INTC2_INTMSK_OFFSET     0x40
 #define INTC2_INTMSKCLR_OFFSET  0x60
+#define NR_INTC2_IRQS   64
+#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
+#define INTC2_BASE      0xffd40000
+#define INTC2_FIRST_IRQ 22
+#define INTC2_INTMSK_OFFSET     (0x38)
+#define INTC2_INTMSKCLR_OFFSET  (0x3c)
+#define NR_INTC2_IRQS   60
+#endif
+
+#define INTC2_INTPRI_OFFSET     0x00
 
 void make_intc2_irq(unsigned int irq,
                     unsigned int ipr_offset, unsigned int ipr_shift,
@@ -577,13 +587,16 @@ void make_intc2_irq(unsigned int irq,
 void init_IRQ_intc2(void);
 void intc2_add_clear_irq(int irq, int (*fn)(int));
 
-#endif  /* CONFIG_CPU_SUBTYPE_ST40STB1 */
+#endif
 
 static inline int generic_irq_demux(int irq)
 {
         return irq;
 }
 
+#ifndef __irq_demux
+#define __irq_demux(irq)        (irq)
+#endif
 #define irq_canonicalize(irq)   (irq)
 #define irq_demux(irq)          __irq_demux(sh_mv.mv_irq_demux(irq))