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authorIngo Molnar <mingo@elte.hu>2009-05-07 11:17:13 +0200
committerIngo Molnar <mingo@elte.hu>2009-05-07 11:17:34 +0200
commit44347d947f628060b92449702071bfe1d31dfb75 (patch)
treec6ed74610d5b3295df4296659f80f5feb94b28cc /arch/arm/mach-davinci/include/mach/cputype.h
parentd94fc523f3c35bd8013f04827e94756cbc0212f4 (diff)
parent413f81eba35d6ede9289b0c8a920c013a84fac71 (diff)
Merge branch 'linus' into tracing/core
Merge reason: tracing/core was on a .30-rc1 base and was missing out on on a handful of tracing fixes present in .30-rc5-almost. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/cputype.h')
-rw-r--r--arch/arm/mach-davinci/include/mach/cputype.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/include/mach/cputype.h b/arch/arm/mach-davinci/include/mach/cputype.h
new file mode 100644
index 00000000000..27cfb1b3a66
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/cputype.h
@@ -0,0 +1,49 @@
+/*
+ * DaVinci CPU type detection
+ *
+ * Author: Kevin Hilman, Deep Root Systems, LLC
+ *
+ * Defines the cpu_is_*() macros for runtime detection of DaVinci
+ * device type. In addtion, if support for a given device is not
+ * compiled in to the kernel, the macros return 0 so that
+ * resulting code can be optimized out.
+ *
+ * 2009 (c) Deep Root Systems, LLC. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#ifndef _ASM_ARCH_CPU_H
+#define _ASM_ARCH_CPU_H
+
+extern unsigned int davinci_rev(void);
+
+#define IS_DAVINCI_CPU(type, id) \
+static inline int is_davinci_dm ##type(void) \
+{ \
+ return (davinci_rev() == (id)) ? 1 : 0; \
+}
+
+IS_DAVINCI_CPU(644x, 0x6446)
+IS_DAVINCI_CPU(646x, 0x6467)
+IS_DAVINCI_CPU(355, 0x355)
+
+#ifdef CONFIG_ARCH_DAVINCI_DM644x
+#define cpu_is_davinci_dm644x() is_davinci_dm644x()
+#else
+#define cpu_is_davinci_dm644x() 0
+#endif
+
+#ifdef CONFIG_ARCH_DAVINCI_DM646x
+#define cpu_is_davinci_dm646x() is_davinci_dm646x()
+#else
+#define cpu_is_davinci_dm646x() 0
+#endif
+
+#ifdef CONFIG_ARCH_DAVINCI_DM355
+#define cpu_is_davinci_dm355() is_davinci_dm355()
+#else
+#define cpu_is_davinci_dm355() 0
+#endif
+
+#endif