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 #define ARCH_ID_AT91SAM9XE128   0x329973a0
  26 #define ARCH_ID_AT91SAM9XE256   0x329a93a0
  27 #define ARCH_ID_AT91SAM9XE512   0x329aa3a0
  28
  29 #define ARCH_ID_AT91SAM9RL64    0x019b03a0
  30
  31 #define ARCH_ID_AT91M40800      0x14080044
  32 #define ARCH_ID_AT91R40807      0x44080746
  33 #define ARCH_ID_AT91M40807      0x14080745
  34 #define ARCH_ID_AT91R40008      0x44000840
  35
  36 static inline unsigned long at91_cpu_identify(void)
  37 {
  38         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  39 }
  40
  41
  42 #define ARCH_FAMILY_AT91X92     0x09200000
  43 #define ARCH_FAMILY_AT91SAM9    0x01900000
  44 #define ARCH_FAMILY_AT91SAM9XE  0x02900000
  45
  46 static inline unsigned long at91_arch_identify(void)
  47 {
  48         return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
  49 }
  50
  51
  52 #ifdef CONFIG_ARCH_AT91RM9200
  53 #define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
  54 #else
  55 #define cpu_is_at91rm9200()     (0)
  56 #endif
  57
  58 #ifdef CONFIG_ARCH_AT91SAM9260
  59 #define cpu_is_at91sam9xe()     (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
  60 #define cpu_is_at91sam9260()    ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
  61 #else
  62 #define cpu_is_at91sam9xe()     (0)
  63 #define cpu_is_at91sam9260()    (0)
  64 #endif
  65
  66 #ifdef CONFIG_ARCH_AT91SAM9261
  67 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
  68 #else
  69 #define cpu_is_at91sam9261()    (0)
  70 #endif
  71
  72 #ifdef CONFIG_ARCH_AT91SAM9263
  73 #define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
  74 #else
  75 #define cpu_is_at91sam9263()    (0)
  76 #endif
  77
  78 #ifdef CONFIG_ARCH_AT91SAM9RL
  79 #define cpu_is_at91sam9rl()     (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
  80 #else
  81 #define cpu_is_at91sam9rl()     (0)
  82 #endif
  83
  84
  85 /*
  86  * Since this is ARM, we will never run on any AVR32 CPU. But these
  87  * definitions may reduce clutter in common drivers.
  88  */
  89 #define cpu_is_at32ap7000()     (0)
  90
  91 #endif