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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-18 08:39:57 +0900
committerKukjin Kim <kgene.kim@samsung.com>2011-10-18 08:39:57 +0900
commit0f4e54c64eacab06675a054a861d6e0b7442ec9e (patch)
tree5338fb0411be0f06d7805afabf487f7e997e3843 /arch/arm/plat-samsung/include
parentec4f5423b5b63b1a92bce375ed242d2c19767995 (diff)
ARM: S3C64XX: Fix SoC identification for S3C64xx devices
The IS_SAMSUNG_CPU() macro works by comparing the CPU ID mask exactly with the CPU ID. This was failing for S3C64xx SoCs as in order to support identification of the exact device the mask covers both variants of the chip, meaning that the test would always fail on S3C6410 devices. This in turn caused the core GPIO subsystem to fail to identify the CPU and not support any GPIOs, crippling the system. As a minimally invasive fix change the test for the class to be done by checking each implementation and oring them together. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-samsung/include')
-rw-r--r--arch/arm/plat-samsung/include/plat/cpu.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
index 54f370f0fc07..40fd7b6b5e66 100644
--- a/arch/arm/plat-samsung/include/plat/cpu.h
+++ b/arch/arm/plat-samsung/include/plat/cpu.h
@@ -25,7 +25,6 @@ extern unsigned long samsung_cpu_id;
#define S3C6400_CPU_ID 0x36400000
#define S3C6410_CPU_ID 0x36410000
-#define S3C64XX_CPU_ID (S3C6400_CPU_ID & S3C6410_CPU_ID)
#define S3C64XX_CPU_MASK 0xFFFFF000
#define S5P6440_CPU_ID 0x56440000
@@ -50,7 +49,8 @@ static inline int is_samsung_##name(void) \
}
IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
-IS_SAMSUNG_CPU(s3c64xx, S3C64XX_CPU_ID, S3C64XX_CPU_MASK)
+IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
+IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK)
IS_SAMSUNG_CPU(s5p6440, S5P6440_CPU_ID, S5P64XX_CPU_MASK)
IS_SAMSUNG_CPU(s5p6450, S5P6450_CPU_ID, S5P64XX_CPU_MASK)
IS_SAMSUNG_CPU(s5pc100, S5PC100_CPU_ID, S5PC100_CPU_MASK)
@@ -69,7 +69,7 @@ IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK)
#endif
#if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
-# define soc_is_s3c64xx() is_samsung_s3c64xx()
+# define soc_is_s3c64xx() (is_samsung_s3c6400() || is_samsung_s3c6410())
#else
# define soc_is_s3c64xx() 0
#endif