src/flash/nor/at91sam7.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Magnus Lundin                                   *
   3  *   lundin@mlu.mine.nu                                                    *
   4  *                                                                         *
   5  *   Copyright (C) 2006 by Gheorghe Guran (atlas)                          *
   6  *                                                                         *
   7  *   This program is free software; you can redistribute it and/or modify  *
   8  *   it under the terms of the GNU General Public License as published by  *
   9  *   the Free Software Foundation; either version 2 of the License, or     *
  10  *   (at your option) any later version.                                   *
  11  *                                                                         *
  12  *   This program is distributed in the hope that it will be useful,       *
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  15  *   GNU General Public License for more details.                          *
  16  *                                                                         *
  17  *   You should have received a copy of the GNU General Public License     *
  18  *   along with this program; if not, write to the                         *
  19  *   Free Software Foundation, Inc.,                                       *
  20  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  21  ***************************************************************************/
  22
  23 #ifndef AT91SAM7_H
  24 #define AT91SAM7_H
  25
  26 struct at91sam7_flash_bank
  27 {
  28         /* chip id register */
  29         uint32_t cidr;
  30         uint16_t cidr_ext;
  31         uint16_t cidr_nvptyp;
  32         uint16_t cidr_arch;
  33         uint16_t cidr_sramsiz;
  34         uint16_t cidr_nvpsiz;
  35         uint16_t cidr_nvpsiz2;
  36         uint16_t cidr_eproc;
  37         uint16_t cidr_version;
  38         char *target_name;
  39
  40         /* flash auto-detection */
  41         uint8_t  flash_autodetection;
  42
  43         /* flash geometry */
  44         uint16_t pages_per_sector;
  45         uint16_t pagesize;
  46         uint16_t pages_in_lockregion;
  47
  48         /* nv memory bits */
  49         uint16_t num_lockbits_on;
  50         uint16_t lockbits;
  51         uint16_t num_nvmbits;
  52         uint16_t num_nvmbits_on;
  53         uint16_t nvmbits;
  54         uint8_t  securitybit;
  55
  56         /* 0: not init
  57          * 1: fmcn for nvbits (1uS)
  58          * 2: fmcn for flash (1.5uS) */
  59         uint8_t  flashmode;
  60
  61         /* main clock status */
  62         uint8_t  mck_valid;
  63         uint32_t mck_freq;
  64
  65         /* external clock frequency */
  66         uint32_t ext_freq;
  67
  68 };
  69
  70
  71 /* AT91SAM7 control registers */
  72 #define DBGU_CIDR                       0xFFFFF240
  73 #define CKGR_MCFR                       0xFFFFFC24
  74 #define CKGR_MOR                        0xFFFFFC20
  75 #define CKGR_MCFR_MAINRDY       0x10000
  76 #define CKGR_PLLR                       0xFFFFFC2c
  77 #define CKGR_PLLR_DIV           0xff
  78 #define CKGR_PLLR_MUL           0x07ff0000
  79 #define PMC_MCKR                        0xFFFFFC30
  80 #define PMC_MCKR_CSS            0x03
  81 #define PMC_MCKR_PRES           0x1c
  82
  83 /* Flash Controller Commands */
  84 #define WP              0x01
  85 #define SLB             0x02
  86 #define WPL             0x03
  87 #define CLB             0x04
  88 #define EA              0x08
  89 #define SGPB    0x0B
  90 #define CGPB    0x0D
  91 #define SSB             0x0F
  92
  93 /* MC_FSR bit definitions */
  94 #define MC_FSR_FRDY                     1
  95 #define MC_FSR_EOL                      2
  96
  97 /* AT91SAM7 constants */
  98 #define RC_FREQ                         32000
  99
 100 /* Flash timing modes */
 101 #define FMR_TIMING_NONE         0
 102 #define FMR_TIMING_NVBITS       1
 103 #define FMR_TIMING_FLASH        2
 104
 105 /* Flash size constants */
 106 #define FLASH_SIZE_8KB          1
 107 #define FLASH_SIZE_16KB         2
 108 #define FLASH_SIZE_32KB         3
 109 #define FLASH_SIZE_64KB         5
 110 #define FLASH_SIZE_128KB        7
 111 #define FLASH_SIZE_256KB        9
 112 #define FLASH_SIZE_512KB        10
 113 #define FLASH_SIZE_1024KB       12
 114 #define FLASH_SIZE_2048KB       14
 115
 116 #endif /* AT91SAM7_H */