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ARC: Update comments about uncached address space

Suggested-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Vineet Gupta 11 years ago
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1736a56f3d
commit
c4aa49df4d
1 changed files with 1 additions and 1 deletions
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  1. 1 1
      arch/arc/include/asm/cache.h

+ 1 - 1
arch/arc/include/asm/cache.h
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@@ -20,7 +20,7 @@
 
 #define CACHE_LINE_MASK		(~(L1_CACHE_BYTES - 1))
 
 #define CACHE_LINE_MASK		(~(L1_CACHE_BYTES - 1))
 
 
 
 /*
 
 /*
 
- * ARC700 doesn't cache any access in top 256M.
 
+ * ARC700 doesn't cache any access in top 1G (0xc000_0000 to 0xFFFF_FFFF)
 
  * Ideal for wiring memory mapped peripherals as we don't need to do
 
  * Ideal for wiring memory mapped peripherals as we don't need to do
 
  * explicit uncached accesses (LD.di/ST.di) hence more portable drivers
 
  * explicit uncached accesses (LD.di/ST.di) hence more portable drivers
 
  */
 
  */