Add function which return CPU model and revision which can be used for cpu detection.
Signed-off-by: Lukasz Dalek luk0104@gmail.com --- Changes for v5: - Changed commit message
arch/arm/cpu/pxa/cpuinfo.c | 11 +++++++++-- 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__ */