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cpu.h

/*
 * arch/arm/mach-at91/include/mach/cpu.h
 *
 *  Copyright (C) 2006 SAN People
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 */

#ifndef __ASM_ARCH_CPU_H
#define __ASM_ARCH_CPU_H

#include <mach/hardware.h>
#include <mach/at91_dbgu.h>


#define ARCH_ID_AT91RM9200    0x09290780
#define ARCH_ID_AT91SAM9260   0x019803a0
#define ARCH_ID_AT91SAM9261   0x019703a0
#define ARCH_ID_AT91SAM9263   0x019607a0
#define ARCH_ID_AT91SAM9G20   0x019905a0
#define ARCH_ID_AT91SAM9RL64  0x019b03a0
#define ARCH_ID_AT91CAP9      0x039A03A0

#define ARCH_ID_AT91SAM9XE128 0x329973a0
#define ARCH_ID_AT91SAM9XE256 0x329a93a0
#define ARCH_ID_AT91SAM9XE512 0x329aa3a0

#define ARCH_ID_AT91M40800    0x14080044
#define ARCH_ID_AT91R40807    0x44080746
#define ARCH_ID_AT91M40807    0x14080745
#define ARCH_ID_AT91R40008    0x44000840

static inline unsigned long at91_cpu_identify(void)
{
      return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
}


#define ARCH_FAMILY_AT91X92   0x09200000
#define ARCH_FAMILY_AT91SAM9  0x01900000
#define ARCH_FAMILY_AT91SAM9XE      0x02900000

static inline unsigned long at91_arch_identify(void)
{
      return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
}


#ifdef CONFIG_ARCH_AT91RM9200
#define cpu_is_at91rm9200()   (at91_cpu_identify() == ARCH_ID_AT91RM9200)
#else
#define cpu_is_at91rm9200()   (0)
#endif

#ifdef CONFIG_ARCH_AT91SAM9260
#define cpu_is_at91sam9xe()   (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
#define cpu_is_at91sam9260()  ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
#else
#define cpu_is_at91sam9xe()   (0)
#define cpu_is_at91sam9260()  (0)
#endif

#ifdef CONFIG_ARCH_AT91SAM9G20
#define cpu_is_at91sam9g20()  (at91_cpu_identify() == ARCH_ID_AT91SAM9G20)
#else
#define cpu_is_at91sam9g20()  (0)
#endif

#ifdef CONFIG_ARCH_AT91SAM9261
#define cpu_is_at91sam9261()  (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
#else
#define cpu_is_at91sam9261()  (0)
#endif

#ifdef CONFIG_ARCH_AT91SAM9263
#define cpu_is_at91sam9263()  (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
#else
#define cpu_is_at91sam9263()  (0)
#endif

#ifdef CONFIG_ARCH_AT91SAM9RL
#define cpu_is_at91sam9rl()   (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
#else
#define cpu_is_at91sam9rl()   (0)
#endif

#ifdef CONFIG_ARCH_AT91CAP9
#define cpu_is_at91cap9()     (at91_cpu_identify() == ARCH_ID_AT91CAP9)
#else
#define cpu_is_at91cap9()     (0)
#endif

/*
 * Since this is ARM, we will never run on any AVR32 CPU. But these
 * definitions may reduce clutter in common drivers.
 */
#define cpu_is_at32ap7000()   (0)

#endif

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