From ebb4c65869db7213280ad9c510637683939b5ff8 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 9 Nov 2008 11:18:36 +0000 Subject: [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 --- arch/arm/include/asm/mach/map.h | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'arch/arm/include/asm') diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h index cb1139ac194..39d949b63e8 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); -- cgit v1.2.3