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| author | Lukasz Dalek <luk0104@gmail.com> | 2012-10-03 00:51:06 +0200 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-10-15 11:54:07 -0700 |
| commit | 539e9ffd92cef086d4b7d0a7efaabc294cd0b05a (patch) | |
| tree | 15b227ec940c014a332c0d8b1313ffae421128ef | |
| parent | c0720afbb56f91fd33fb5b4e564e1037809c6304 (diff) | |
| download | u-boot-imx-539e9ffd92cef086d4b7d0a7efaabc294cd0b05a.zip u-boot-imx-539e9ffd92cef086d4b7d0a7efaabc294cd0b05a.tar.gz u-boot-imx-539e9ffd92cef086d4b7d0a7efaabc294cd0b05a.tar.bz2 | |
pxa: Add code to examine cpu model and revision
Add function which return CPU model and revision which can be used for
cpu detection.
Signed-off-by: Lukasz Dalek <luk0104@gmail.com>
| -rw-r--r-- | arch/arm/cpu/pxa/cpuinfo.c | 11 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-pxa/pxa.h | 13 |
2 files changed, 22 insertions, 2 deletions
diff --git a/arch/arm/cpu/pxa/cpuinfo.c b/arch/arm/cpu/pxa/cpuinfo.c index f1cdd40..bab6340 100644 --- a/arch/arm/cpu/pxa/cpuinfo.c +++ b/arch/arm/cpu/pxa/cpuinfo.c @@ -24,9 +24,11 @@ #include <errno.h> #include <linux/compiler.h> -#define CPU_MASK_PXA_REVID 0x00f +#define CPU_MASK_PXA_PRODID 0x000003f0 +#define CPU_MASK_PXA_REVID 0x0000000f + +#define CPU_MASK_PRODREV (CPU_MASK_PXA_PRODID | CPU_MASK_PXA_REVID) -#define CPU_MASK_PXA_PRODID 0x3f0 #define CPU_VALUE_PXA25X 0x100 #define CPU_VALUE_PXA27X 0x110 @@ -51,6 +53,11 @@ int cpu_is_pxa27x(void) return id == CPU_VALUE_PXA27X; } +uint32_t pxa_get_cpu_revision(void) +{ + return pxa_get_cpuid() & CPU_MASK_PRODREV; +} + #ifdef CONFIG_DISPLAY_CPUINFO static const char *pxa25x_get_revision(void) { diff --git a/arch/arm/include/asm/arch-pxa/pxa.h b/arch/arm/include/asm/arch-pxa/pxa.h index 49c6552..b67d8f2 100644 --- a/arch/arm/include/asm/arch-pxa/pxa.h +++ b/arch/arm/include/asm/arch-pxa/pxa.h @@ -22,8 +22,21 @@ #ifndef __PXA_H__ #define __PXA_H__ +#define PXA255_A0 0x00000106 +#define PXA250_C0 0x00000105 +#define PXA250_B2 0x00000104 +#define PXA250_B1 0x00000103 +#define PXA250_B0 0x00000102 +#define PXA250_A1 0x00000101 +#define PXA250_A0 0x00000100 +#define PXA210_C0 0x00000125 +#define PXA210_B2 0x00000124 +#define PXA210_B1 0x00000123 +#define PXA210_B0 0x00000122 + int cpu_is_pxa25x(void); int cpu_is_pxa27x(void); +uint32_t pxa_get_cpu_revision(void); void pxa2xx_dram_init(void); #endif /* __PXA_H__ */ |