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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>
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Chris Zankel committed Oct 21, 2008
1 parent 74f2a5f commit 00c81d2
Showing 1 changed file with 5 additions and 3 deletions.
8 changes: 5 additions & 3 deletions include/asm-xtensa/io.h
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Original file line number Diff line number Diff line change
Expand Up @@ -18,10 +18,12 @@

#include <linux/types.h>

#define XCHAL_KIO_CACHED_VADDR 0xf0000000
#define XCHAL_KIO_BYPASS_VADDR 0xf8000000
#define XCHAL_KIO_CACHED_VADDR 0xe0000000
#define XCHAL_KIO_BYPASS_VADDR 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
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