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| author | Kukjin Kim <kgene.kim@samsung.com> | 2011-08-20 13:41:21 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2011-08-24 20:26:03 +0900 |
| commit | 56b209227a87b718450e917df904e627ddfca146 (patch) | |
| tree | 4a271174ecec8bf1fb13e90a2bbca00918a4def8 /arch/arm/mach-exynos4/cpu.c | |
| parent | e6d1cb9f1fffd7e300af6d8f6731a486d6255e3f (diff) | |
| download | lwn-56b209227a87b718450e917df904e627ddfca146.tar.gz lwn-56b209227a87b718450e917df904e627ddfca146.zip | |
ARM: EXYNOS4: Use samsung_rev() to distinguish silicon revision
This patch uses samsung_rev() to support variable silicon revision of
EXYNOS4210 so that can support for EXYNOS4210 REV0, REV1.0 and REV1.1.
Note: Need to change timer setting on REV0.
Acked-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos4/cpu.c')
| -rw-r--r-- | arch/arm/mach-exynos4/cpu.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/arch/arm/mach-exynos4/cpu.c b/arch/arm/mach-exynos4/cpu.c index 2d8a40c9e6e5..dbc358d75547 100644 --- a/arch/arm/mach-exynos4/cpu.c +++ b/arch/arm/mach-exynos4/cpu.c @@ -43,11 +43,6 @@ static struct map_desc exynos4_iodesc[] __initdata = { .length = SZ_4K, .type = MT_DEVICE, }, { - .virtual = (unsigned long)S5P_VA_SYSRAM, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSRAM), - .length = SZ_4K, - .type = MT_DEVICE, - }, { .virtual = (unsigned long)S5P_VA_CMU, .pfn = __phys_to_pfn(EXYNOS4_PA_CMU), .length = SZ_128K, @@ -120,6 +115,24 @@ static struct map_desc exynos4_iodesc[] __initdata = { }, }; +static struct map_desc exynos4_iodesc0[] __initdata = { + { + .virtual = (unsigned long)S5P_VA_SYSRAM, + .pfn = __phys_to_pfn(EXYNOS4_PA_SYSRAM0), + .length = SZ_4K, + .type = MT_DEVICE, + }, +}; + +static struct map_desc exynos4_iodesc1[] __initdata = { + { + .virtual = (unsigned long)S5P_VA_SYSRAM, + .pfn = __phys_to_pfn(EXYNOS4_PA_SYSRAM1), + .length = SZ_4K, + .type = MT_DEVICE, + }, +}; + static void exynos4_idle(void) { if (!need_resched()) @@ -137,6 +150,11 @@ void __init exynos4_map_io(void) { iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc)); + if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_0) + iotable_init(exynos4_iodesc0, ARRAY_SIZE(exynos4_iodesc0)); + else + iotable_init(exynos4_iodesc1, ARRAY_SIZE(exynos4_iodesc1)); + /* initialize device information early */ exynos4_default_sdhci0(); exynos4_default_sdhci1(); |