[PATCH RFC 01/11] ARM: SAMSUNG: Add soc_is_s3c2410() helper
Tomasz Figa
t.figa at samsung.com
Tue Dec 24 09:14:24 EST 2013
Due to the S3C2410 SoC being quite different from other S3C24xx SoCs
in some aspects, such as availability of DIVSLOT register in its UART
blocks, there is a need sometimes to check whether we are running on
this SoC, not just the S3C24xx series. This patch adds soc_is_s3c2410()
helper function for this purpose.
Signed-off-by: Tomasz Figa <t.figa at samsung.com>
---
arch/arm/plat-samsung/include/plat/cpu.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
index 335beb3..6bf86f6 100644
--- a/arch/arm/plat-samsung/include/plat/cpu.h
+++ b/arch/arm/plat-samsung/include/plat/cpu.h
@@ -20,6 +20,9 @@
extern unsigned long samsung_cpu_id;
+#define S3C2410_CPU_ID 0x32410000
+#define S3C2410_CPU_MASK 0xFFFFFFFF
+
#define S3C24XX_CPU_ID 0x32400000
#define S3C24XX_CPU_MASK 0xFFF00000
@@ -56,6 +59,7 @@ static inline int is_samsung_##name(void) \
return ((samsung_cpu_id & mask) == (id & mask)); \
}
+IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK)
IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK)
IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
@@ -76,8 +80,10 @@ IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK)
defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \
defined(CONFIG_CPU_S3C2443)
# define soc_is_s3c24xx() is_samsung_s3c24xx()
+# define soc_is_s3c2410() is_samsung_s3c2410()
#else
# define soc_is_s3c24xx() 0
+# define soc_is_s3c2410() 0
#endif
#if defined(CONFIG_CPU_S3C2412)
--
1.8.4.3
More information about the linux-arm-kernel
mailing list