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Diffstat (limited to 'arch/arm/mach-mxs/include/mach/mxs.h')
-rw-r--r--arch/arm/mach-mxs/include/mach/mxs.h29
1 files changed, 16 insertions, 13 deletions
diff --git a/arch/arm/mach-mxs/include/mach/mxs.h b/arch/arm/mach-mxs/include/mach/mxs.h
index bde5f66..7d4fb6d 100644
--- a/arch/arm/mach-mxs/include/mach/mxs.h
+++ b/arch/arm/mach-mxs/include/mach/mxs.h
@@ -23,22 +23,10 @@
#include <linux/io.h>
#endif
#include <asm/mach-types.h>
+#include <mach/digctl.h>
#include <mach/hardware.h>
/*
- * MXS CPU types
- */
-#define cpu_is_mx23() ( \
- machine_is_mx23evk() || \
- machine_is_stmp378x() || \
- 0)
-#define cpu_is_mx28() ( \
- machine_is_mx28evk() || \
- machine_is_m28evk() || \
- machine_is_tx28() || \
- 0)
-
-/*
* IO addresses common to MXS-based
*/
#define MXS_IO_BASE_ADDR 0x80000000
@@ -109,6 +97,21 @@ static inline void __mxs_togl(u32 mask, void __iomem *reg)
{
__raw_writel(mask, reg + MXS_TOG_ADDR);
}
+
+/*
+ * MXS CPU types
+ */
+#define MXS_CHIPID (MXS_IO_ADDRESS(MXS_DIGCTL_BASE_ADDR) + HW_DIGCTL_CHIPID)
+
+static inline int cpu_is_mx23(void)
+{
+ return ((__raw_readl(MXS_CHIPID) >> 16) == 0x3780);
+}
+
+static inline int cpu_is_mx28(void)
+{
+ return ((__raw_readl(MXS_CHIPID) >> 16) == 0x2800);
+}
#endif
#endif /* __MACH_MXS_H__ */