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powerpc/mpc85xx: Clear L1 D-cache lock

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dcbi instruction has been used to clear D-cache lock. However, the cache
lock is persistent for e6500 core. Use dcblc to clear the lock explicitly.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
York Sun
2013-04-05 13:07:13 +00:00
committed by Andy Fleming
parent 39bdaff4f4
commit a71d45d706
1 changed files with 1 additions and 0 deletions
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arch/powerpc/cpu/mpc85xx/start.S
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@@ -1906,6 +1906,7 @@ unlock_ram_in_cache:
slwi r4,r4,(10 - 1 - L1_CACHE_SHIFT) slwi r4,r4,(10 - 1 - L1_CACHE_SHIFT)
mtctr r4 mtctr r4
1: dcbi r0,r3 1: dcbi r0,r3
dcblc r0,r3
addi r3,r3,CONFIG_SYS_CACHELINE_SIZE addi r3,r3,CONFIG_SYS_CACHELINE_SIZE
bdnz 1b bdnz 1b
sync sync