src/flash/at91sam7.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Magnus Lundin                                   *
   3  *   lundin@mlu.mine.nu                                                    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifndef AT91SAM7_H
  21 #define AT91SAM7_H
  22
  23 #include "flash.h"
  24 #include "target.h"
  25
  26 typedef struct at91sam7_flash_bank_s
  27 {
  28         u32 working_area;
  29         u32 working_area_size;
  30
  31         /* chip id register */
  32         u32 cidr;
  33         u16 cidr_ext;
  34         u16 cidr_nvptyp;
  35         u16 cidr_arch;
  36         u16 cidr_sramsiz;
  37         u16 cidr_nvpsiz;
  38         u16 cidr_nvpsiz2;
  39         u16 cidr_eproc;
  40         u16 cidr_version;
  41         char * target_name;
  42
  43         /* flash geometry */
  44         u16 num_pages;
  45         u16 pagesize;
  46         u16 pages_in_lockregion;
  47         u8 num_erase_regions;
  48         u8 num_planes;
  49         u32 *erase_region_info;
  50
  51         /* nv memory bits */
  52         u16 num_lockbits;
  53         u16 lockbits[4];
  54         u16 num_nvmbits;
  55         u16 nvmbits;
  56         u8  securitybit;
  57         u8  flashmode[4];         /* 0: not init, 1: fmcn for nvbits (1uS), 2: fmcn for flash (1.5uS) */
  58
  59         /* main clock status */
  60         u8  mck_valid;
  61         u32 mck_freq;
  62
  63 } at91sam7_flash_bank_t;
  64
  65 /* AT91SAM7 control registers */
  66 #define DBGU_CIDR 0xFFFFF240
  67 #define CKGR_MCFR 0xFFFFFC24
  68 #define CKGR_MCFR_MAINRDY  0x10000
  69 #define CKGR_PLLR 0xFFFFFC2c
  70 #define CKGR_PLLR_DIV 0xff
  71 #define CKGR_PLLR_MUL 0x07ff0000
  72 #define PMC_MCKR  0xFFFFFC30
  73 #define PMC_MCKR_CSS  0x03
  74 #define PMC_MCKR_PRES 0x1c
  75
  76 /* Flash Controller Commands */
  77 #define  WP   0x01
  78 #define  SLB  0x02
  79 #define  WPL  0x03
  80 #define  CLB  0x04
  81 #define  EA   0x08
  82 #define  SGPB 0x0B
  83 #define  CGPB 0x0D
  84 #define  SSB  0x0F
  85
  86 /* MC_FSR bit definitions */
  87 #define        MC_FSR_FRDY 1
  88 #define        MC_FSR_EOL 2
  89
  90 /* AT91SAM7 constants */
  91 #define RC_FREQ  32000
  92
  93 /*  FLASH_TIMING_MODES */
  94 #define  FMR_TIMING_NONE    0
  95 #define  FMR_TIMING_NVBITS  1
  96 #define  FMR_TIMING_FLASH   2
  97
  98 #endif /* AT91SAM7_H */