diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-10 09:52:59 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-10 09:52:59 +0100 |
| commit | b920eb41a8241c54efbbd4f2ed6d074f497b0d9e (patch) | |
| tree | 5941091817e932add192f8e58dc88d483322e214 /arch/arm/mach-exynos/include/mach/uncompress.h | |
| parent | a9d5801041eecc7baceff49a28e82f91f207a961 (diff) | |
| parent | 0034102808e0dbbf3a2394b82b1bb40b5778de9e (diff) | |
Merge tag 'v3.4-rc2' into regulator-drivers
Linux 3.4-rc2 contains some fixes that further patches depend upon.
Diffstat (limited to 'arch/arm/mach-exynos/include/mach/uncompress.h')
| -rw-r--r-- | arch/arm/mach-exynos/include/mach/uncompress.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/arm/mach-exynos/include/mach/uncompress.h b/arch/arm/mach-exynos/include/mach/uncompress.h index 493f4f365dd..2979995d5a6 100644 --- a/arch/arm/mach-exynos/include/mach/uncompress.h +++ b/arch/arm/mach-exynos/include/mach/uncompress.h @@ -20,9 +20,24 @@ volatile u8 *uart_base; #include <plat/uncompress.h> +static unsigned int __raw_readl(unsigned int ptr) +{ + return *((volatile unsigned int *)ptr); +} + static void arch_detect_cpu(void) { - if (machine_is_smdk5250()) + u32 chip_id = __raw_readl(EXYNOS_PA_CHIPID); + + /* + * product_id is bits 31:12 + * bits 23:20 describe the exynosX family + * + */ + chip_id >>= 20; + chip_id &= 0xf; + + if (chip_id == 0x5) uart_base = (volatile u8 *)EXYNOS5_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); else uart_base = (volatile u8 *)EXYNOS4_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); |