diff options
| author | Dave Liu <daveliu@freescale.com> | 2009-10-31 07:59:55 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-10-31 10:59:52 -0500 |
| commit | ff88229549e08fdd3f9127c1cc4db11a3576250f (patch) | |
| tree | 113a6449b6f95716d137c6775c8ab86fde6b15cc /cpu/mpc85xx/release.S | |
| parent | b91b8f74fe9ded18344c3d03080a4abc07254502 (diff) | |
ppc/85xx: Fix misc L2 cache enabling bug
We need loop-check the flash clear lock and enable bit for L2 cache.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'cpu/mpc85xx/release.S')
| -rw-r--r-- | cpu/mpc85xx/release.S | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/cpu/mpc85xx/release.S b/cpu/mpc85xx/release.S index a1ae78a7f5..433ff02544 100644 --- a/cpu/mpc85xx/release.S +++ b/cpu/mpc85xx/release.S @@ -102,18 +102,22 @@ __secondary_start_page: #ifdef CONFIG_BACKSIDE_L2_CACHE /* Enable/invalidate the L2 cache */ msync - lis r3,(L2CSR0_L2FI|L2CSR0_L2LFC)@h - ori r3,r3,(L2CSR0_L2FI|L2CSR0_L2LFC)@l - mtspr SPRN_L2CSR0,r3 + lis r2,(L2CSR0_L2FI|L2CSR0_L2LFC)@h + ori r2,r2,(L2CSR0_L2FI|L2CSR0_L2LFC)@l + mtspr SPRN_L2CSR0,r2 1: mfspr r3,SPRN_L2CSR0 - andis. r1,r3,L2CSR0_L2FI@h + and. r1,r3,r2 bne 1b lis r3,CONFIG_SYS_INIT_L2CSR0@h ori r3,r3,CONFIG_SYS_INIT_L2CSR0@l mtspr SPRN_L2CSR0,r3 isync +2: + mfspr r3,SPRN_L2CSR0 + andis. r1,r3,L2CSR0_L2E@h + beq 2b #endif #define EPAPR_MAGIC (0x45504150) |