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ARM: OMAP4: ID: Improve features detection and check

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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 <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Ivan Khoronzhuk 2012-11-14 12:10:37 -08:00 committed by Tony Lindgren
parent 0b4b61c0dc
commit 42a1cc9c0e
2 changed files with 9 additions and 24 deletions
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25
arch/arm/mach-omap2/id.c
View File

@ -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)

8
arch/arm/mach-omap2/soc.h
View File

@ -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__ */