pxa: Add code to examine cpu model and revision

[platform/kernel/u-boot.git] / arch / arm / cpu / pxa / cpuinfo.c

diff --git a/arch/arm/cpu/pxa/cpuinfo.c b/arch/arm/cpu/pxa/cpuinfo.c
index f1cdd40..bab6340 100644 (file)
--- 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)
 {