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| author | Shawn Guo <shawn.guo@linaro.org> | 2011-12-30 16:16:07 +0800 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2011-12-30 16:16:07 +0800 |
| commit | 5b2acf384c8a8707d32a98106192ee7187e4446d (patch) | |
| tree | 568cc0c99cc25e0003c26e62e50f94ce5c2bd2eb /arch/arm/mach-imx | |
| parent | 5f0a6e2d503896062f641639dacfe5055c2f593b (diff) | |
| download | lwn-5b2acf384c8a8707d32a98106192ee7187e4446d.tar.gz lwn-5b2acf384c8a8707d32a98106192ee7187e4446d.zip | |
ARM: imx6: fix v7_invalidate_l1 by adding I-Cache invalidation
The recent suspend/resume and reset testing on imx6q discovers that
not only D-Cache but also I-Cache has random data and validity when
the core comes out of a power recycle.
This patch adds I-Cache invalidation into v7_invalidate_l1 to make
sure both D-Cache and I-Cache invalidated on power-up.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/head-v7.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/head-v7.S b/arch/arm/mach-imx/head-v7.S index 6229efbc70cb..c844112061be 100644 --- a/arch/arm/mach-imx/head-v7.S +++ b/arch/arm/mach-imx/head-v7.S @@ -33,6 +33,7 @@ */ ENTRY(v7_invalidate_l1) mov r0, #0 + mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 2, r0, c0, c0, 0 mrc p15, 1, r0, c0, c0, 0 |