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| author | Haojian Zhuang <haojian.zhuang@linaro.org> | 2014-06-22 16:17:47 +0800 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@linaro.org> | 2014-06-22 16:22:28 +0800 |
| commit | fac09fe81ef1802cf1f7ef89ad83c8407964ae54 (patch) | |
| tree | 59cba79e0bde07e2419628127e2c299655db31a1 /drivers/iommu/shmobile-iommu.c | |
| parent | ef3cc2def9729f72263c0dd5c5db1345d7fbf0a9 (diff) | |
debug: test l3hang-with-l3
Hang when kernel is executed from stext with L3 enabled.
If we set the debug code as ".align 3" followed by stext in
arch/arm/kernel/head.S file, 1 test LED could be light.
Or if we set the debug code as ".aligh 4" followed by stext in
arch/arm/kernel/head.S file, 3 test LEDs could be light.
It seems that the next instruction cache line after stext is broken.
If L3 is disabled, there's no hang.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Diffstat (limited to 'drivers/iommu/shmobile-iommu.c')
0 files changed, 0 insertions, 0 deletions