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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2007-05-06 23:58:29 +0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-05-06 23:58:29 +0400
commit5cd47155155a32e5b944ac9fc3f3dc578e429aa0 (patch)
treeea05bfdbae04eb5ffbafa2c58fc68897a3f541d6 /include/asm-arm/arch-ixp4xx/cpu.h
parent6f95416ebe81b3ad63884538555efb81cb05749f (diff)
parent28bd3a0dcce11bea6f99a351cc64053dff00196e (diff)
downloadlinux-5cd47155155a32e5b944ac9fc3f3dc578e429aa0.tar.xz
Merge branch 'ixp4xx' into devel
Conflicts: include/asm-arm/arch-ixp4xx/io.h
Diffstat (limited to 'include/asm-arm/arch-ixp4xx/cpu.h')
-rw-r--r--include/asm-arm/arch-ixp4xx/cpu.h31
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 */