initial_commit

1 files changed, 94 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 00000000..957fb87e
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/cputype.h
@@ -0,0 +1,94 @@
+/*
+ * DaVinci CPU type detection
+ *
+ * Author: Kevin Hilman, Deep Root Systems, LLC
+ *
+ * Defines the cpu_is_*() macros for runtime detection of DaVinci
+ * device type.  In addition, 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
+
+#include <mach/common.h>
+
+struct davinci_id {
+	u8	variant;	/* JTAG ID bits 31:28 */
+	u16	part_no;	/* JTAG ID bits 27:12 */
+	u16	manufacturer;	/* JTAG ID bits 11:1 */
+	u32	cpu_id;
+	char	*name;
+};
+
+/* Can use lower 16 bits of cpu id  for a variant when required */
+#define	DAVINCI_CPU_ID_DM6446		0x64460000
+#define	DAVINCI_CPU_ID_DM6467		0x64670000
+#define	DAVINCI_CPU_ID_DM355		0x03550000
+#define	DAVINCI_CPU_ID_DM365		0x03650000
+#define	DAVINCI_CPU_ID_DA830		0x08300000
+#define	DAVINCI_CPU_ID_DA850		0x08500000
+#define	DAVINCI_CPU_ID_TNETV107X	0x0b8a0000
+
+#define IS_DAVINCI_CPU(type, id)					\
+static inline int is_davinci_ ##type(void)				\
+{									\
+	return (davinci_soc_info.cpu_id == (id));			\
+}
+
+IS_DAVINCI_CPU(dm644x, DAVINCI_CPU_ID_DM6446)
+IS_DAVINCI_CPU(dm646x, DAVINCI_CPU_ID_DM6467)
+IS_DAVINCI_CPU(dm355, DAVINCI_CPU_ID_DM355)
+IS_DAVINCI_CPU(dm365, DAVINCI_CPU_ID_DM365)
+IS_DAVINCI_CPU(da830, DAVINCI_CPU_ID_DA830)
+IS_DAVINCI_CPU(da850, DAVINCI_CPU_ID_DA850)
+IS_DAVINCI_CPU(tnetv107x, DAVINCI_CPU_ID_TNETV107X)
+
+#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
+
+#ifdef CONFIG_ARCH_DAVINCI_DM365
+#define cpu_is_davinci_dm365() is_davinci_dm365()
+#else
+#define cpu_is_davinci_dm365() 0
+#endif
+
+#ifdef CONFIG_ARCH_DAVINCI_DA830
+#define cpu_is_davinci_da830() is_davinci_da830()
+#else
+#define cpu_is_davinci_da830() 0
+#endif
+
+#ifdef CONFIG_ARCH_DAVINCI_DA850
+#define cpu_is_davinci_da850() is_davinci_da850()
+#else
+#define cpu_is_davinci_da850() 0
+#endif
+
+#ifdef CONFIG_ARCH_DAVINCI_TNETV107X
+#define cpu_is_davinci_tnetv107x() is_davinci_tnetv107x()
+#else
+#define cpu_is_davinci_tnetv107x() 0
+#endif
+
+#endif