diff options
Diffstat (limited to 'patches.tizen/0001-ARM-EXYNOS-Fail-l2x0-cache-initialization-if-DT-base.patch')
| -rw-r--r-- | patches.tizen/0001-ARM-EXYNOS-Fail-l2x0-cache-initialization-if-DT-base.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/patches.tizen/0001-ARM-EXYNOS-Fail-l2x0-cache-initialization-if-DT-base.patch b/patches.tizen/0001-ARM-EXYNOS-Fail-l2x0-cache-initialization-if-DT-base.patch new file mode 100644 index 00000000000..c1e705bcedc --- /dev/null +++ b/patches.tizen/0001-ARM-EXYNOS-Fail-l2x0-cache-initialization-if-DT-base.patch @@ -0,0 +1,38 @@ +From cf01114c6e953bcbcf1fc2a9474eedb71e4f3a9b Mon Sep 17 00:00:00 2001 +From: Tomasz Figa <t.figa@samsung.com> +Date: Wed, 12 Sep 2012 15:30:32 +0200 +Subject: [PATCH 0001/1302] ARM: EXYNOS: Fail l2x0 cache initialization if + DT-based init fails + +On DT-based boards, DT decides whether to enable l2x0 cache controller +or not. + +This patch modifies Exynos l2x0 cache initialization code to fail if +l2x0_of_init fails. + +Signed-off-by: Tomasz Figa <t.figa@samsung.com> +Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> +--- + arch/arm/mach-exynos/common.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c +index f7e504b..5bb6b26 100644 +--- a/arch/arm/mach-exynos/common.c ++++ b/arch/arm/mach-exynos/common.c +@@ -560,8 +560,10 @@ static int __init exynos4_l2x0_cache_init(void) + if (soc_is_exynos5250() || soc_is_exynos5440()) + return 0; + +- ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK); +- if (!ret) { ++ if (of_have_populated_dt()) { ++ ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK); ++ if (ret) ++ return ret; + l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs); + clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long)); + return 0; +-- +1.8.3.2 + |