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/*
* 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
#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 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)
#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
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