include/asm-arm/arch-at91/cpu.h

   1 /*
   2  * include/asm-arm/arch-at91/cpu.h
   3  *
   4  *  Copyright (C) 2006 SAN People
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  */
  12
  13 #ifndef __ASM_ARCH_CPU_H
  14 #define __ASM_ARCH_CPU_H
  15
  16 #include <asm/hardware.h>
  17 #include <asm/arch/at91_dbgu.h>
  18
  19
  20 #define ARCH_ID_AT91RM9200      0x09290780
  21 #define ARCH_ID_AT91SAM9260     0x019803a0
  22 #define ARCH_ID_AT91SAM9261     0x019703a0
  23 #define ARCH_ID_AT91SAM9263     0x019607a0
  24
  25
  26 static inline unsigned long at91_cpu_identify(void)
  27 {
  28         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  29 }
  30
  31
  32 #ifdef CONFIG_ARCH_AT91RM9200
  33 #define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
  34 #else
  35 #define cpu_is_at91rm9200()     (0)
  36 #endif
  37
  38 #ifdef CONFIG_ARCH_AT91SAM9260
  39 #define cpu_is_at91sam9260()    (at91_cpu_identify() == ARCH_ID_AT91SAM9260)
  40 #else
  41 #define cpu_is_at91sam9260()    (0)
  42 #endif
  43
  44 #ifdef CONFIG_ARCH_AT91SAM9261
  45 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
  46 #else
  47 #define cpu_is_at91sam9261()    (0)
  48 #endif
  49
  50 #ifdef CONFIG_ARCH_AT91SAM9263
  51 #define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
  52 #else
  53 #define cpu_is_at91sam9263()    (0)
  54 #endif
  55
  56 #endif