src/flash/nor/stm32x.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2008 by Spencer Oliver                                  *
   6  *   spen@spen-soft.co.uk                                                  *
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (at your option) any later version.                                   *
  12  *                                                                         *
  13  *   This program is distributed in the hope that it will be useful,       *
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  16  *   GNU General Public License for more details.                          *
  17  *                                                                         *
  18  *   You should have received a copy of the GNU General Public License     *
  19  *   along with this program; if not, write to the                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  22  ***************************************************************************/
  23 #ifndef STM32X_H
  24 #define STM32X_H
  25
  26 struct stm32x_options
  27 {
  28         uint16_t RDP;
  29         uint16_t user_options;
  30         uint16_t protection[4];
  31 };
  32
  33 struct stm32x_flash_bank
  34 {
  35         struct stm32x_options option_bytes;
  36         struct working_area *write_algorithm;
  37         int ppage_size;
  38         int probed;
  39 };
  40
  41 /* stm32x register locations */
  42
  43 #define STM32_FLASH_ACR         0x40022000
  44 #define STM32_FLASH_KEYR        0x40022004
  45 #define STM32_FLASH_OPTKEYR     0x40022008
  46 #define STM32_FLASH_SR          0x4002200C
  47 #define STM32_FLASH_CR          0x40022010
  48 #define STM32_FLASH_AR          0x40022014
  49 #define STM32_FLASH_OBR         0x4002201C
  50 #define STM32_FLASH_WRPR        0x40022020
  51
  52 /* option byte location */
  53
  54 #define STM32_OB_RDP            0x1FFFF800
  55 #define STM32_OB_USER           0x1FFFF802
  56 #define STM32_OB_DATA0          0x1FFFF804
  57 #define STM32_OB_DATA1          0x1FFFF806
  58 #define STM32_OB_WRP0           0x1FFFF808
  59 #define STM32_OB_WRP1           0x1FFFF80A
  60 #define STM32_OB_WRP2           0x1FFFF80C
  61 #define STM32_OB_WRP3           0x1FFFF80E
  62
  63 /* FLASH_CR register bits */
  64
  65 #define FLASH_PG                (1 << 0)
  66 #define FLASH_PER               (1 << 1)
  67 #define FLASH_MER               (1 << 2)
  68 #define FLASH_OPTPG             (1 << 4)
  69 #define FLASH_OPTER             (1 << 5)
  70 #define FLASH_STRT              (1 << 6)
  71 #define FLASH_LOCK              (1 << 7)
  72 #define FLASH_OPTWRE    (1 << 9)
  73
  74 /* FLASH_SR register bits */
  75
  76 #define FLASH_BSY               (1 << 0)
  77 #define FLASH_PGERR             (1 << 2)
  78 #define FLASH_WRPRTERR  (1 << 4)
  79 #define FLASH_EOP               (1 << 5)
  80
  81 /* STM32_FLASH_OBR bit definitions (reading) */
  82
  83 #define OPT_ERROR               0
  84 #define OPT_READOUT             1
  85 #define OPT_RDWDGSW             2
  86 #define OPT_RDRSTSTOP   3
  87 #define OPT_RDRSTSTDBY  4
  88
  89 /* register unlock keys */
  90
  91 #define KEY1                    0x45670123
  92 #define KEY2                    0xCDEF89AB
  93
  94 struct stm32x_mem_layout {
  95         uint32_t sector_start;
  96         uint32_t sector_size;
  97 };
  98
  99 #endif /* STM32X_H */