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