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| author | Jon Loeliger <jdl@jdl.com> | 2006-05-19 13:14:15 -0500 |
|---|---|---|
| committer | Jon Loeliger <jdl@jdl.com> | 2006-05-19 13:54:02 -0500 |
| commit | cccce5d0581bb0ba4602799a4b5112e58d1579cb (patch) | |
| tree | 064ff4b3efe5d33abfd1ff43b9d3bebffd2729b5 | |
| parent | f35ec68fb066cec0e36294bfe07dec2d4e8ad3a8 (diff) | |
| download | u-boot-imx-cccce5d0581bb0ba4602799a4b5112e58d1579cb.zip u-boot-imx-cccce5d0581bb0ba4602799a4b5112e58d1579cb.tar.gz u-boot-imx-cccce5d0581bb0ba4602799a4b5112e58d1579cb.tar.bz2 | |
Remove L2 Cache invalidate polling.
| -rw-r--r-- | cpu/mpc86xx/cache.S | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/cpu/mpc86xx/cache.S b/cpu/mpc86xx/cache.S index 75186b1..f316b3e 100644 --- a/cpu/mpc86xx/cache.S +++ b/cpu/mpc86xx/cache.S @@ -28,7 +28,7 @@ * Most of this code is taken from 74xx_7xx/cache.S * and then cleaned up a bit */ - + /* * Invalidate L1 instruction cache. */ @@ -316,24 +316,30 @@ _GLOBAL(dcache_status) blr /* - * Invalidate L2 cache using L2I and polling L2IP + * Invalidate L2 cache using L2I, assume L2 is enabled */ _GLOBAL(l2cache_invalidate) - sync - oris r3, r3, L2CR_L2I@h + mfspr r3, l2cr + rlwinm. r3, r3, 0, 0, 0 + beq 1f + + mfspr r3, l2cr + rlwinm r3, r3, 0, 1, 31 + +#ifdef CONFIG_ALTIVEC + dssall +#endif sync mtspr l2cr, r3 sync +1: mfspr r3, l2cr + oris r3, r3, L2CR_L2I@h + mtspr l2cr, r3 + invl2: mfspr r3, l2cr - andi. r3, r3, L2CR_L2IP + andi. r3, r3, L2CR_L2I@h bne invl2 - /* turn off the global invalidate bit */ - mfspr r3, l2cr - rlwinm r3, r3, 0, 11, 9 - sync - mtspr l2cr, r3 - sync blr /* |