[PATCH] m32r: Update _port2addr to use NONCACHE_OFFSET

Modify _port2addr*() routines in arch/m32r/kernel/io_*.c to use
NONCACHE_OFFSET instead of hard-coding of a constant address.

This modification is also required to support an M3A-ZA36 FPGA eva board in
case an MMU-less synthesizable m32r core is used.

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 30 insertions, 21 deletions

diff --git a/arch/m32r/kernel/io_mappi3.c b/arch/m32r/kernel/io_mappi3.c
index f80321a58764..ed6da930bc64 100644
--- a/arch/m32r/kernel/io_mappi3.c
+++ b/arch/m32r/kernel/io_mappi3.c
@@ -33,7 +33,7 @@ extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
 
 static inline void *_port2addr(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET);
+        return (void *)(port | NONCACHE_OFFSET);
 }
 
 #if defined(CONFIG_IDE)
@@ -43,33 +43,42 @@ static inline void *__port2addr_ata(unsigned long port)
 
         switch (port) {
           /* IDE0 CF */
-        case 0x1f0:     return (void *)0xb4002000;
-        case 0x1f1:     return (void *)0xb4012800;
-        case 0x1f2:     return (void *)0xb4012002;
-        case 0x1f3:     return (void *)0xb4012802;
-        case 0x1f4:     return (void *)0xb4012004;
-        case 0x1f5:     return (void *)0xb4012804;
-        case 0x1f6:     return (void *)0xb4012006;
-        case 0x1f7:     return (void *)0xb4012806;
-        case 0x3f6:     return (void *)0xb401200e;
+        case 0x1f0:     return (void *)(0x14002000 | NONCACHE_OFFSET);
+        case 0x1f1:     return (void *)(0x14012800 | NONCACHE_OFFSET);
+        case 0x1f2:     return (void *)(0x14012002 | NONCACHE_OFFSET);
+        case 0x1f3:     return (void *)(0x14012802 | NONCACHE_OFFSET);
+        case 0x1f4:     return (void *)(0x14012004 | NONCACHE_OFFSET);
+        case 0x1f5:     return (void *)(0x14012804 | NONCACHE_OFFSET);
+        case 0x1f6:     return (void *)(0x14012006 | NONCACHE_OFFSET);
+        case 0x1f7:     return (void *)(0x14012806 | NONCACHE_OFFSET);
+        case 0x3f6:     return (void *)(0x1401200e | NONCACHE_OFFSET);
           /* IDE1 IDE */
-        case 0x170:     return (void *)0xb4810000;  /* Data 16bit */
-        case 0x171:     return (void *)0xb4810002;  /* Features / Error */
-        case 0x172:     return (void *)0xb4810004;  /* Sector count */
-        case 0x173:     return (void *)0xb4810006;  /* Sector number */
-        case 0x174:     return (void *)0xb4810008;  /* Cylinder low */
-        case 0x175:     return (void *)0xb481000a;  /* Cylinder high */
-        case 0x176:     return (void *)0xb481000c;  /* Device head */
-        case 0x177:     return (void *)0xb481000e;  /* Command     */
-        case 0x376:     return (void *)0xb480800c;  /* Device control / Alt status */
+        case 0x170:     /* Data 16bit */
+                        return (void *)(0x14810000 | NONCACHE_OFFSET);
+        case 0x171:     /* Features / Error */
+                        return (void *)(0x14810002 | NONCACHE_OFFSET);
+        case 0x172:     /* Sector count */
+                        return (void *)(0x14810004 | NONCACHE_OFFSET);
+        case 0x173:     /* Sector number */
+                        return (void *)(0x14810006 | NONCACHE_OFFSET);
+        case 0x174:     /* Cylinder low */
+                        return (void *)(0x14810008 | NONCACHE_OFFSET);
+        case 0x175:     /* Cylinder high */
+                        return (void *)(0x1481000a | NONCACHE_OFFSET);
+        case 0x176:     /* Device head */
+                        return (void *)(0x1481000c | NONCACHE_OFFSET);
+        case 0x177:     /* Command     */
+                        return (void *)(0x1481000e | NONCACHE_OFFSET);
+        case 0x376:     /* Device control / Alt status */
+                        return (void *)(0x1480800c | NONCACHE_OFFSET);
 
         default:        return (void *)&dummy_reg;
         }
 }
 #endif
 
-#define LAN_IOSTART     0xa0000300
-#define LAN_IOEND       0xa0000320
+#define LAN_IOSTART     (0x300 | NONCACHE_OFFSET)
+#define LAN_IOEND       (0x320 | NONCACHE_OFFSET)
 static inline void *_port2addr_ne(unsigned long port)
 {
         return (void *)(port + 0x10000000);