diff options
Diffstat (limited to 'cpu/74xx_7xx')
| -rw-r--r-- | cpu/74xx_7xx/cache.S | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/cpu/74xx_7xx/cache.S b/cpu/74xx_7xx/cache.S index a793d799d..3a745cbe0 100644 --- a/cpu/74xx_7xx/cache.S +++ b/cpu/74xx_7xx/cache.S @@ -329,14 +329,28 @@ _GLOBAL(dcache_status) blr /* - * Invalidate L2 cache using L2I and polling L2IP + * Invalidate L2 cache using L2I and polling L2IP or L2I */ _GLOBAL(l2cache_invalidate) sync + mfspr r3, l2cr oris r3, r3, L2CR_L2I@h sync mtspr l2cr, r3 sync + mfspr r3, PVR + sync + rlwinm r3, r3, 16,16,31 + cmpli 0,r3,0x8000 /* 7451, 7441 */ + beq 0,inv_7450 + cmpli 0,r3,0x8001 /* 7455, 7445 */ + beq 0,inv_7450 + cmpli 0,r3,0x8002 /* 7457, 7447 */ + beq 0,inv_7450 + cmpli 0,r3,0x8003 /* 7447A */ + beq 0,inv_7450 + cmpli 0,r3,0x8004 /* 7448 */ + beq 0,inv_7450 invl2: mfspr r3, l2cr andi. r3, r3, L2CR_L2IP @@ -348,6 +362,11 @@ invl2: mtspr l2cr, r3 sync blr +inv_7450: + mfspr r3, l2cr + andis. r3, r3, L2CR_L2I@h + bne inv_7450 + blr /* * Enable L2 cache |