[PATCH] IP22/IP28: fix extracting board/chip rev

[Thomas Bogendoerfer <tsbogend@alpha.franken.de>]

Taken from Peter Fuersts IP28 patches

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
 include/asm-mips/sgi/ioc.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/asm-mips/sgi/ioc.h b/include/asm-mips/sgi/ioc.h
index f3e3dc9..343ed15 100644
--- a/include/asm-mips/sgi/ioc.h
+++ b/include/asm-mips/sgi/ioc.h
@@ -138,8 +138,8 @@ struct sgioc_regs {
        u8 _sysid[3];
        volatile u8 sysid;
 #define SGIOC_SYSID_FULLHOUSE  0x01
-#define SGIOC_SYSID_BOARDREV(x)        ((x & 0xe0) > 5)
-#define SGIOC_SYSID_CHIPREV(x) ((x & 0x1e) > 1)
+#define SGIOC_SYSID_BOARDREV(x)        (((x) & 0x1e) >> 1)
+#define SGIOC_SYSID_CHIPREV(x) (((x) & 0xe0) >> 5)
        u32 _unused2;
        u8 _read[3];
        volatile u8 read;
-- 
1.4.4.4