[MIPS] Make I8259A_IRQ_BASE customizable

Move I8259A_IRQ_BASE from asm/i8259.h to asm/mach-generic/irq.h and
make it really customizable.  And remove I8259_IRQ_BASE declared on
some platforms.  Currently only NEC_CMBVR4133 is using custom
I8259A_IRQ_BASE value.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

6 files changed, 29 insertions, 26 deletions

diff --git a/include/asm-mips/ddb5xxx/ddb5477.h b/include/asm-mips/ddb5xxx/ddb5477.h
index 27655dbd23f3..6cf177caf6d5 100644
--- a/include/asm-mips/ddb5xxx/ddb5477.h
+++ b/include/asm-mips/ddb5xxx/ddb5477.h
@@ -252,12 +252,8 @@ extern void ll_vrc5477_irq_disable(int vrc5477_irq);
  */
 
 #define NUM_CPU_IRQ             8
-#define NUM_I8259_IRQ           16
 #define NUM_VRC5477_IRQ         32
 
-#define DDB_IRQ_BASE            0
-
-#define I8259_IRQ_BASE          DDB_IRQ_BASE
 #define CPU_IRQ_BASE            MIPS_CPU_IRQ_BASE
 #define VRC5477_IRQ_BASE        (CPU_IRQ_BASE + NUM_CPU_IRQ)
 
@@ -301,22 +297,22 @@ extern void ll_vrc5477_irq_disable(int vrc5477_irq);
 /*
  * i2859 irq assignment
  */
-#define I8259_IRQ_RESERVED_0    (0 + I8259_IRQ_BASE)
-#define I8259_IRQ_KEYBOARD      (1 + I8259_IRQ_BASE)    /* M1543 default */
-#define I8259_IRQ_CASCADE       (2 + I8259_IRQ_BASE)
-#define I8259_IRQ_UART_B        (3 + I8259_IRQ_BASE)    /* M1543 default, may conflict with RTC according to schematic diagram  */
-#define I8259_IRQ_UART_A        (4 + I8259_IRQ_BASE)    /* M1543 default */
-#define I8259_IRQ_PARALLEL      (5 + I8259_IRQ_BASE)    /* M1543 default */
-#define I8259_IRQ_RESERVED_6    (6 + I8259_IRQ_BASE)
-#define I8259_IRQ_RESERVED_7    (7 + I8259_IRQ_BASE)
-#define I8259_IRQ_RTC           (8 + I8259_IRQ_BASE)    /* who set this? */
-#define I8259_IRQ_USB           (9 + I8259_IRQ_BASE)    /* ddb_setup */
-#define I8259_IRQ_PMU           (10 + I8259_IRQ_BASE)   /* ddb_setup */
-#define I8259_IRQ_RESERVED_11   (11 + I8259_IRQ_BASE)
-#define I8259_IRQ_RESERVED_12   (12 + I8259_IRQ_BASE)   /* m1543_irq_setup */
-#define I8259_IRQ_RESERVED_13   (13 + I8259_IRQ_BASE)
-#define I8259_IRQ_HDC1          (14 + I8259_IRQ_BASE)   /* default and ddb_setup */
-#define I8259_IRQ_HDC2          (15 + I8259_IRQ_BASE)   /* default */
+#define I8259_IRQ_RESERVED_0    (0 + I8259A_IRQ_BASE)
+#define I8259_IRQ_KEYBOARD      (1 + I8259A_IRQ_BASE)   /* M1543 default */
+#define I8259_IRQ_CASCADE       (2 + I8259A_IRQ_BASE)
+#define I8259_IRQ_UART_B        (3 + I8259A_IRQ_BASE)   /* M1543 default, may conflict with RTC according to schematic diagram  */
+#define I8259_IRQ_UART_A        (4 + I8259A_IRQ_BASE)   /* M1543 default */
+#define I8259_IRQ_PARALLEL      (5 + I8259A_IRQ_BASE)   /* M1543 default */
+#define I8259_IRQ_RESERVED_6    (6 + I8259A_IRQ_BASE)
+#define I8259_IRQ_RESERVED_7    (7 + I8259A_IRQ_BASE)
+#define I8259_IRQ_RTC           (8 + I8259A_IRQ_BASE)   /* who set this? */
+#define I8259_IRQ_USB           (9 + I8259A_IRQ_BASE)   /* ddb_setup */
+#define I8259_IRQ_PMU           (10 + I8259A_IRQ_BASE)  /* ddb_setup */
+#define I8259_IRQ_RESERVED_11   (11 + I8259A_IRQ_BASE)
+#define I8259_IRQ_RESERVED_12   (12 + I8259A_IRQ_BASE)  /* m1543_irq_setup */
+#define I8259_IRQ_RESERVED_13   (13 + I8259A_IRQ_BASE)
+#define I8259_IRQ_HDC1          (14 + I8259A_IRQ_BASE)  /* default and ddb_setup */
+#define I8259_IRQ_HDC2          (15 + I8259A_IRQ_BASE)  /* default */
 
 
 /*
diff --git a/include/asm-mips/i8259.h b/include/asm-mips/i8259.h
index 4df8d8b118c0..e88a01607fea 100644
--- a/include/asm-mips/i8259.h
+++ b/include/asm-mips/i8259.h
@@ -18,6 +18,7 @@
 #include <linux/spinlock.h>
 
 #include <asm/io.h>
+#include <irq.h>
 
 /* i8259A PIC registers */
 #define PIC_MASTER_CMD          0x20
@@ -42,8 +43,6 @@ extern void disable_8259A_irq(unsigned int irq);
 
 extern void init_i8259_irqs(void);
 
-#define I8259A_IRQ_BASE 0
-
 /*
  * Do the traditional i8259 interrupt polling thing.  This is for the few
  * cases where no better interrupt acknowledge method is available and we
diff --git a/include/asm-mips/irq.h b/include/asm-mips/irq.h
index 386da82e5774..91803ba30ff2 100644
--- a/include/asm-mips/irq.h
+++ b/include/asm-mips/irq.h
@@ -18,7 +18,7 @@
 #ifdef CONFIG_I8259
 static inline int irq_canonicalize(int irq)
 {
-        return ((irq == 2) ? 9 : irq);
+        return ((irq == I8259A_IRQ_BASE + 2) ? I8259A_IRQ_BASE + 9 : irq);
 }
 #else
 #define irq_canonicalize(irq) (irq)     /* Sane hardware, sane code ... */
diff --git a/include/asm-mips/mach-generic/irq.h b/include/asm-mips/mach-generic/irq.h
index 91e6778907fe..70d9a25132c5 100644
--- a/include/asm-mips/mach-generic/irq.h
+++ b/include/asm-mips/mach-generic/irq.h
@@ -12,6 +12,12 @@
 #define NR_IRQS 128
 #endif
 
+#ifdef CONFIG_I8259
+#ifndef I8259A_IRQ_BASE
+#define I8259A_IRQ_BASE 0
+#endif
+#endif
+
 #ifdef CONFIG_IRQ_CPU
 
 #ifndef MIPS_CPU_IRQ_BASE
diff --git a/include/asm-mips/mach-vr41xx/irq.h b/include/asm-mips/mach-vr41xx/irq.h
index 862058d3f81b..848812296052 100644
--- a/include/asm-mips/mach-vr41xx/irq.h
+++ b/include/asm-mips/mach-vr41xx/irq.h
@@ -2,6 +2,9 @@
 #define __ASM_MACH_VR41XX_IRQ_H
 
 #include <asm/vr41xx/irq.h> /* for MIPS_CPU_IRQ_BASE */
+#ifdef CONFIG_NEC_CMBVR4133
+#include <asm/vr41xx/cmbvr4133.h> /* for I8259A_IRQ_BASE */
+#endif
 
 #include_next <irq.h>
 
diff --git a/include/asm-mips/vr41xx/cmbvr4133.h b/include/asm-mips/vr41xx/cmbvr4133.h
index 9490ade58b46..42300037d593 100644
--- a/include/asm-mips/vr41xx/cmbvr4133.h
+++ b/include/asm-mips/vr41xx/cmbvr4133.h
@@ -35,8 +35,8 @@
 #define CMBVR41XX_INTD_IRQ              GIU_IRQ(CMBVR41XX_INTD_PIN)
 #define CMBVR41XX_INTE_IRQ              GIU_IRQ(CMBVR41XX_INTE_PIN)
 
-#define I8259_IRQ_BASE                  72
-#define I8259_IRQ(x)                    (I8259_IRQ_BASE + (x))
+#define I8259A_IRQ_BASE                 72
+#define I8259_IRQ(x)                    (I8259A_IRQ_BASE + (x))
 #define TIMER_IRQ                       I8259_IRQ(0)
 #define KEYBOARD_IRQ                    I8259_IRQ(1)
 #define I8259_SLAVE_IRQ                 I8259_IRQ(2)
@@ -52,6 +52,5 @@
 #define AUX_IRQ                         I8259_IRQ(12)
 #define IDE_PRIMARY_IRQ                 I8259_IRQ(14)
 #define IDE_SECONDARY_IRQ               I8259_IRQ(15)
-#define I8259_IRQ_LAST                  IDE_SECONDARY_IRQ
 
 #endif /* __NEC_CMBVR4133_H */