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powerpc/mpc85xx: Fix Handling the lack of L2 cache on P2040/P2040E 

Fix SVR checking for commit acf3f8da.

Signed-off-by: York Sun <yorksun@freescale.com>
This commit is contained in:
York Sun 2012-05-07 07:39:53 +00:00 committed by Andy Fleming
parent 5e23ab0a31
commit feae34243f
1 changed files with 4 additions and 7 deletions
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11
arch/powerpc/cpu/mpc85xx/release.S
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@ -171,15 +171,12 @@ __secondary_start_page:
#ifdef CONFIG_BACKSIDE_L2_CACHE #ifdef CONFIG_BACKSIDE_L2_CACHE
/* skip L2 setup on P2040/P2040E as they have no L2 */ /* skip L2 setup on P2040/P2040E as they have no L2 */
mfspr r2,SPRN_SVR mfspr r3,SPRN_SVR
rlwinm r6,r3,24,~0x800 /* clear E bit of SVR */
lis r3,SVR_P2040@h lis r3,SVR_P2040@h
ori r3,r3,SVR_P2040@l ori r3,r3,SVR_P2040@l
cmpw r2,r3 cmpw r6,r3
beq 3f
lis r3,SVR_P2040_E@h
ori r3,r3,SVR_P2040_E@l
cmpw r2,r3
beq 3f beq 3f
/* Enable/invalidate the L2 cache */ /* Enable/invalidate the L2 cache */