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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-11-09 11:18:36 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-11-09 11:18:36 +0000
commitebb4c65869db7213280ad9c510637683939b5ff8 (patch)
treee9aa372c806fad73a04ba2f9d16d1f17491a11cf /arch/arm/include
parent7bfc0b2e266dd4cd3d3f27a3ad31bf79974190b1 (diff)
downloadop-kernel-dev-ebb4c65869db7213280ad9c510637683939b5ff8.zip
op-kernel-dev-ebb4c65869db7213280ad9c510637683939b5ff8.tar.gz
[ARM] iop: iop3xx needs registers mapped uncached+unbuffered
Mikael Pettersson reported: The 2.6.28-rc kernels fail to detect PCI device 0000:00:01.0 (the first ethernet port) on my Thecus n2100 XScale box. There is however still a strange "ghost" device that gets partially detected in 2.6.28-rc2 vanilla. The IOP321 manual says: The user designates the memory region containing the OCCDR as non-cacheable and non-bufferable from the IntelR XScaleTM core. This guarantees that all load/stores to the OCCDR are only of DWORD quantities. Ensure that the OCCDR is so mapped. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/mach/map.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
index cb1139a..39d949b 100644
--- a/arch/arm/include/asm/mach/map.h
+++ b/arch/arm/include/asm/mach/map.h
@@ -19,12 +19,13 @@ struct map_desc {
};
/* types 0-3 are defined in asm/io.h */
-#define MT_CACHECLEAN 4
-#define MT_MINICLEAN 5
-#define MT_LOW_VECTORS 6
-#define MT_HIGH_VECTORS 7
-#define MT_MEMORY 8
-#define MT_ROM 9
+#define MT_UNCACHED 4
+#define MT_CACHECLEAN 5
+#define MT_MINICLEAN 6
+#define MT_LOW_VECTORS 7
+#define MT_HIGH_VECTORS 8
+#define MT_MEMORY 9
+#define MT_ROM 10
#ifdef CONFIG_MMU
extern void iotable_init(struct map_desc *, int);
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