From 42a1cc9c0ec2a00b53b4f02849dc4377b09b3b05 Mon Sep 17 00:00:00 2001 From: Ivan Khoronzhuk Date: Wed, 14 Nov 2012 12:10:37 -0800 Subject: [PATCH] ARM: OMAP4: ID: Improve features detection and check Replaces several flags bearing the same meaning. There is no need to set flags due to different omap types here, it can be checked in appropriate places as well. Cc: Tony Lindgren Cc: Russell King Cc: linux-omap@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Acked-by: Nishanth Menon Acked-by: Santosh Shilimkar Signed-off-by: Ivan Khoronzhuk Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/id.c | 25 +++++++------------------ arch/arm/mach-omap2/soc.h | 8 ++------ 2 files changed, 9 insertions(+), 24 deletions(-) diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index cf2362ccb234..3c47a19a580f 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -28,6 +28,9 @@ #include "soc.h" #include "control.h" +#define OMAP4_SILICON_TYPE_STANDARD 0x01 +#define OMAP4_SILICON_TYPE_PERFORMANCE 0x02 + static unsigned int omap_revision; static const char *cpu_rev; u32 omap_features; @@ -273,25 +276,11 @@ void __init omap4xxx_check_features(void) { u32 si_type; - if (cpu_is_omap443x()) - omap_features |= OMAP4_HAS_MPU_1GHZ; + si_type = + (read_tap_reg(OMAP4_CTRL_MODULE_CORE_STD_FUSE_PROD_ID_1) >> 16) & 0x03; - - if (cpu_is_omap446x()) { - si_type = - read_tap_reg(OMAP4_CTRL_MODULE_CORE_STD_FUSE_PROD_ID_1); - switch ((si_type & (3 << 16)) >> 16) { - case 2: - /* High performance device */ - omap_features |= OMAP4_HAS_MPU_1_5GHZ; - break; - case 1: - default: - /* Standard device */ - omap_features |= OMAP4_HAS_MPU_1_2GHZ; - break; - } - } + if (si_type == OMAP4_SILICON_TYPE_PERFORMANCE) + omap_features = OMAP4_HAS_PERF_SILICON; } void __init ti81xx_check_features(void) diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h index 070096496e20..f31d90774de0 100644 --- a/arch/arm/mach-omap2/soc.h +++ b/arch/arm/mach-omap2/soc.h @@ -435,9 +435,7 @@ extern u32 omap_features; #define OMAP3_HAS_IO_WAKEUP BIT(6) #define OMAP3_HAS_SDRC BIT(7) #define OMAP3_HAS_IO_CHAIN_CTRL BIT(8) -#define OMAP4_HAS_MPU_1GHZ BIT(9) -#define OMAP4_HAS_MPU_1_2GHZ BIT(10) -#define OMAP4_HAS_MPU_1_5GHZ BIT(11) +#define OMAP4_HAS_PERF_SILICON BIT(9) #define OMAP3_HAS_FEATURE(feat,flag) \ @@ -465,9 +463,7 @@ static inline unsigned int omap4_has_ ##feat(void) \ return omap_features & OMAP4_HAS_ ##flag; \ } \ -OMAP4_HAS_FEATURE(mpu_1ghz, MPU_1GHZ) -OMAP4_HAS_FEATURE(mpu_1_2ghz, MPU_1_2GHZ) -OMAP4_HAS_FEATURE(mpu_1_5ghz, MPU_1_5GHZ) +OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON) #endif /* __ASSEMBLY__ */