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| author | Kukjin Kim <kgene.kim@samsung.com> | 2011-08-20 02:18:18 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2011-08-22 07:14:07 +0900 |
| commit | c06af3cc6a27991187fd513765fed943684d41bf (patch) | |
| tree | 1bdcaab50fd7ba121218c8ee23f19df9caaf149b /arch/arm/plat-s5p | |
| parent | 93ee7a9340d64f20295aacc3fb6a22b759323280 (diff) | |
| download | linux-c06af3cc6a27991187fd513765fed943684d41bf.tar.bz2 | |
ARM: SAMSUNG: Add support for detecting CPU at runtime
The soc_is_[name]() can be used to distinguish cpu at runtime.
This patch was originally from Changhwan Youn <chaos.youn@samsung.com>
Acked-by: Changhwan Youn <chaos.youn@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-s5p')
| -rw-r--r-- | arch/arm/plat-s5p/cpu.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c index bbc2aa7449ca..3ef673482111 100644 --- a/arch/arm/plat-s5p/cpu.c +++ b/arch/arm/plat-s5p/cpu.c @@ -36,40 +36,40 @@ static const char name_exynos4210[] = "EXYNOS4210"; static struct cpu_table cpu_ids[] __initdata = { { - .idcode = 0x56440100, - .idmask = 0xfffff000, + .idcode = S5P6440_CPU_ID, + .idmask = S5P64XX_CPU_MASK, .map_io = s5p6440_map_io, .init_clocks = s5p6440_init_clocks, .init_uarts = s5p6440_init_uarts, .init = s5p64x0_init, .name = name_s5p6440, }, { - .idcode = 0x36450000, - .idmask = 0xfffff000, + .idcode = S5P6450_CPU_ID, + .idmask = S5P64XX_CPU_MASK, .map_io = s5p6450_map_io, .init_clocks = s5p6450_init_clocks, .init_uarts = s5p6450_init_uarts, .init = s5p64x0_init, .name = name_s5p6450, }, { - .idcode = 0x43100000, - .idmask = 0xfffff000, + .idcode = S5PC100_CPU_ID, + .idmask = S5PC100_CPU_MASK, .map_io = s5pc100_map_io, .init_clocks = s5pc100_init_clocks, .init_uarts = s5pc100_init_uarts, .init = s5pc100_init, .name = name_s5pc100, }, { - .idcode = 0x43110000, - .idmask = 0xfffff000, + .idcode = S5PV210_CPU_ID, + .idmask = S5PV210_CPU_MASK, .map_io = s5pv210_map_io, .init_clocks = s5pv210_init_clocks, .init_uarts = s5pv210_init_uarts, .init = s5pv210_init, .name = name_s5pv210, }, { - .idcode = 0x43210000, - .idmask = 0xfffe0000, + .idcode = EXYNOS4210_CPU_ID, + .idmask = EXYNOS4_CPU_MASK, .map_io = exynos4_map_io, .init_clocks = exynos4_init_clocks, .init_uarts = exynos4_init_uarts, @@ -114,13 +114,11 @@ static struct map_desc s5p_iodesc[] __initdata = { void __init s5p_init_io(struct map_desc *mach_desc, int size, void __iomem *cpuid_addr) { - unsigned long idcode; - /* initialize the io descriptors we need for initialization */ iotable_init(s5p_iodesc, ARRAY_SIZE(s5p_iodesc)); if (mach_desc) iotable_init(mach_desc, size); - idcode = __raw_readl(cpuid_addr); - s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids)); + samsung_cpu_id = __raw_readl(cpuid_addr); + s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids)); } |