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xtensa: Fix io regions

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The uncached area starts at e000.0000 and spans 1GB. Also add an IOADDR
macro to determine the bypass region to access the IO space.

Signed-off-by: Chris Zankel <chris@zankel.net>
This commit is contained in:
Chris Zankel 2008-10-21 09:08:31 -07:00
parent 74f2a5f0ef
commit 00c81d23d3
1 changed files with 5 additions and 3 deletions
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8
include/asm-xtensa/io.h
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@ -18,10 +18,12 @@
#include <linux/types.h> #include <linux/types.h>
#define XCHAL_KIO_CACHED_VADDR 0xf0000000 #define XCHAL_KIO_CACHED_VADDR 0xe0000000
#define XCHAL_KIO_BYPASS_VADDR 0xf8000000 #define XCHAL_KIO_BYPASS_VADDR 0xf0000000
#define XCHAL_KIO_PADDR 0xf0000000 #define XCHAL_KIO_PADDR 0xf0000000
#define XCHAL_KIO_SIZE 0x08000000 #define XCHAL_KIO_SIZE 0x10000000
#define IOADDR(x) (XCHAL_KIO_BYPASS_VADDR + (x))
/* /*
* swap functions to change byte order from little-endian to big-endian and * swap functions to change byte order from little-endian to big-endian and