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| author | Sanjeev Premi <premi@ti.com> | 2009-11-22 10:10:53 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2009-11-22 10:24:32 -0800 |
| commit | 8384ce071365244332ea05c81112bfffcf48be87 (patch) | |
| tree | 5a6f076c6cef8d526b4429e17a64fd73dd63132c /arch/arm/plat-omap/include/plat/cpu.h | |
| parent | 45f780a06153544ab84fd1da3a8b28c07f61da1d (diff) | |
| download | kernel_samsung_smdk4412-8384ce071365244332ea05c81112bfffcf48be87.zip kernel_samsung_smdk4412-8384ce071365244332ea05c81112bfffcf48be87.tar.gz kernel_samsung_smdk4412-8384ce071365244332ea05c81112bfffcf48be87.tar.bz2 | |
omap3: Runtime detection of Si features
The OMAP35x family has multiple variants differing
in the HW features. This patch detects these features
at runtime and prints information during the boot.
Since most of the code seemed repetitive, macros
have been used for readability.
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap/include/plat/cpu.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/cpu.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h index f129efb..431fec4 100644 --- a/arch/arm/plat-omap/include/plat/cpu.h +++ b/arch/arm/plat-omap/include/plat/cpu.h @@ -30,6 +30,8 @@ #ifndef __ASM_ARCH_OMAP_CPU_H #define __ASM_ARCH_OMAP_CPU_H +#include <linux/bitops.h> + /* * Omap device type i.e. EMU/HS/TST/GP/BAD */ @@ -423,4 +425,27 @@ IS_OMAP_TYPE(3430, 0x3430) int omap_chip_is(struct omap_chip_id oci); void omap2_check_revision(void); +/* + * Runtime detection of OMAP3 features + */ +extern u32 omap3_features; + +#define OMAP3_HAS_L2CACHE BIT(0) +#define OMAP3_HAS_IVA BIT(1) +#define OMAP3_HAS_SGX BIT(2) +#define OMAP3_HAS_NEON BIT(3) +#define OMAP3_HAS_ISP BIT(4) + +#define OMAP3_HAS_FEATURE(feat,flag) \ +static inline unsigned int omap3_has_ ##feat(void) \ +{ \ + return (omap3_features & OMAP3_HAS_ ##flag); \ +} \ + +OMAP3_HAS_FEATURE(l2cache, L2CACHE) +OMAP3_HAS_FEATURE(sgx, SGX) +OMAP3_HAS_FEATURE(iva, IVA) +OMAP3_HAS_FEATURE(neon, NEON) +OMAP3_HAS_FEATURE(isp, ISP) + #endif |