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nios2: add flush_dcache_range function

Browse source 
exposes functionality to flush dcache according to
the common.h API

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
This commit is contained in:
Stefan Kristiansson 2011-11-04 14:38:08 +02:00 committed by Thomas Chou
parent 2acca35ce4
commit 8875833a86
1 changed files with 10 additions and 0 deletions
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10
arch/nios2/lib/cache.S
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@ -48,6 +48,16 @@ flush_icache:
bltu r4, r5, 1b
ret
.global flush_dcache_range
flush_dcache_range:
movhi r8, %hi(CONFIG_SYS_DCACHELINE_SIZE)
ori r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE)
0: flushd 0(r4)
add r4, r4, r8
bltu r4, r5, 0b
ret
.global flush_cache
flush_cache: