src/flash/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 #include "flash.h"
  27
  28 typedef struct at91sam7_flash_bank_s
  29 {
  30         /* chip id register */
  31         u32 cidr;
  32         u16 cidr_ext;
  33         u16 cidr_nvptyp;
  34         u16 cidr_arch;
  35         u16 cidr_sramsiz;
  36         u16 cidr_nvpsiz;
  37         u16 cidr_nvpsiz2;
  38         u16 cidr_eproc;
  39         u16 cidr_version;
  40         char *target_name;
  41
  42         /* flash auto-detection */
  43         u8  flash_autodetection;
  44
  45         /* flash geometry */
  46         u16 pages_per_sector;
  47         u16 pagesize;
  48         u16 pages_in_lockregion;
  49
  50         /* nv memory bits */
  51         u16 num_lockbits_on;
  52         u16 lockbits;
  53         u16 num_nvmbits;
  54         u16 num_nvmbits_on;
  55         u16 nvmbits;
  56         u8  securitybit;
  57
  58         /* 0: not init
  59          * 1: fmcn for nvbits (1uS)
  60          * 2: fmcn for flash (1.5uS) */
  61         u8  flashmode;
  62
  63         /* main clock status */
  64         u8  mck_valid;
  65         u32 mck_freq;
  66
  67         /* external clock frequency */
  68         u32 ext_freq;
  69
  70 } at91sam7_flash_bank_t;
  71
  72
  73 /* AT91SAM7 control registers */
  74 #define DBGU_CIDR                       0xFFFFF240
  75 #define CKGR_MCFR                       0xFFFFFC24
  76 #define CKGR_MOR                        0xFFFFFC20
  77 #define CKGR_MCFR_MAINRDY       0x10000
  78 #define CKGR_PLLR                       0xFFFFFC2c
  79 #define CKGR_PLLR_DIV           0xff
  80 #define CKGR_PLLR_MUL           0x07ff0000
  81 #define PMC_MCKR                        0xFFFFFC30
  82 #define PMC_MCKR_CSS            0x03
  83 #define PMC_MCKR_PRES           0x1c
  84
  85 /* Flash Controller Commands */
  86 #define WP              0x01
  87 #define SLB             0x02
  88 #define WPL             0x03
  89 #define CLB             0x04
  90 #define EA              0x08
  91 #define SGPB    0x0B
  92 #define CGPB    0x0D
  93 #define SSB             0x0F
  94
  95 /* MC_FSR bit definitions */
  96 #define MC_FSR_FRDY                     1
  97 #define MC_FSR_EOL                      2
  98
  99 /* AT91SAM7 constants */
 100 #define RC_FREQ                         32000
 101
 102 /* Flash timing modes */
 103 #define FMR_TIMING_NONE         0
 104 #define FMR_TIMING_NVBITS       1
 105 #define FMR_TIMING_FLASH        2
 106
 107 /* Flash size constants */
 108 #define FLASH_SIZE_8KB          1
 109 #define FLASH_SIZE_16KB         2
 110 #define FLASH_SIZE_32KB         3
 111 #define FLASH_SIZE_64KB         5
 112 #define FLASH_SIZE_128KB        7
 113 #define FLASH_SIZE_256KB        9
 114 #define FLASH_SIZE_512KB        10
 115 #define FLASH_SIZE_1024KB       12
 116 #define FLASH_SIZE_2048KB       14
 117
 118 #endif /* AT91SAM7_H */