1 files changed, 31 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ixp4xx/cpu.h b/include/asm-arm/arch-ixp4xx/cpu.h
new file mode 100644
index 000000000000..d2523b326c6c
--- /dev/null
+++ b/include/asm-arm/arch-ixp4xx/cpu.h
@@ -0,0 +1,31 @@
+/*
+ * include/asm-arm/arch-ixp4xx/cpu.h
+ *
+ * IXP4XX cpu type detection
+ *
+ * Copyright (C) 2007 MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_ARCH_CPU_H__
+#define __ASM_ARCH_CPU_H__
+
+extern unsigned int processor_id;
+/* Processor id value in CP15 Register 0 */
+#define IXP425_PROCESSOR_ID_VALUE       0x690541c0
+#define IXP435_PROCESSOR_ID_VALUE       0x69054040
+#define IXP465_PROCESSOR_ID_VALUE       0x69054200
+#define IXP4XX_PROCESSOR_ID_MASK        0xfffffff0
+
+#define cpu_is_ixp42x() ((processor_id & IXP4XX_PROCESSOR_ID_MASK) == \
+                          IXP425_PROCESSOR_ID_VALUE)
+#define cpu_is_ixp43x() ((processor_id & IXP4XX_PROCESSOR_ID_MASK) == \
+                          IXP435_PROCESSOR_ID_VALUE)
+#define cpu_is_ixp46x() ((processor_id & IXP4XX_PROCESSOR_ID_MASK) == \
+                          IXP465_PROCESSOR_ID_VALUE)
+
+#endif  /* _ASM_ARCH_CPU_H */