src/flash/nor/stellaris.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 STELLARIS_FLASH_H
  21 #define STELLARIS_FLASH_H
  22
  23 struct stellaris_flash_bank
  24 {
  25         /* chip id register */
  26         uint32_t did0;
  27         uint32_t did1;
  28         uint32_t dc0;
  29         uint32_t dc1;
  30
  31         char * target_name;
  32
  33         uint32_t sramsiz;
  34         uint32_t flshsz;
  35         /* flash geometry */
  36         uint32_t num_pages;
  37         uint32_t pagesize;
  38         uint32_t pages_in_lockregion;
  39
  40         /* nv memory bits */
  41         uint16_t num_lockbits;
  42
  43         /* main clock status */
  44         uint32_t rcc;
  45         uint32_t rcc2;
  46         uint8_t  mck_valid;
  47         uint8_t  xtal_mask;
  48         uint32_t iosc_freq;
  49         uint32_t mck_freq;
  50         const char *iosc_desc;
  51         const char *mck_desc;
  52 };
  53
  54 /* STELLARIS control registers */
  55 #define SCB_BASE        0x400FE000
  56 #define DID0            0x000
  57 #define DID1            0x004
  58 #define DC0                     0x008
  59 #define DC1                     0x010
  60 #define DC2                     0x014
  61 #define DC3                     0x018
  62 #define DC4                     0x01C
  63
  64 #define RIS                     0x050
  65 #define RCC                     0x060
  66 #define PLLCFG          0x064
  67 #define RCC2            0x070
  68
  69 /* "legacy" flash memory protection registers (64KB max) */
  70 #define FMPRE           0x130
  71 #define FMPPE           0x134
  72
  73 /* new flash memory protection registers (for more than 64KB) */
  74 #define FMPRE0          0x200           /* PRE1 = PRE0 + 4, etc */
  75 #define FMPPE0          0x400           /* PPE1 = PPE0 + 4, etc */
  76
  77 #define USECRL          0x140
  78
  79 #define FLASH_CONTROL_BASE      0x400FD000
  80 #define FLASH_FMA       (FLASH_CONTROL_BASE | 0x000)
  81 #define FLASH_FMD       (FLASH_CONTROL_BASE | 0x004)
  82 #define FLASH_FMC       (FLASH_CONTROL_BASE | 0x008)
  83 #define FLASH_CRIS      (FLASH_CONTROL_BASE | 0x00C)
  84 #define FLASH_CIM       (FLASH_CONTROL_BASE | 0x010)
  85 #define FLASH_MISC      (FLASH_CONTROL_BASE | 0x014)
  86
  87 #define AMISC   1
  88 #define PMISC   2
  89
  90 #define AMASK   1
  91 #define PMASK   2
  92
  93 /* Flash Controller Command bits */
  94 #define FMC_WRKEY       (0xA442 << 16)
  95 #define FMC_COMT        (1 << 3)
  96 #define FMC_MERASE      (1 << 2)
  97 #define FMC_ERASE       (1 << 1)
  98 #define FMC_WRITE       (1 << 0)
  99
 100 /* STELLARIS constants */
 101
 102 /* values to write in FMA to commit write-"once" values */
 103 #define FLASH_FMA_PRE(x)        (2 * (x))       /* for FMPPREx */
 104 #define FLASH_FMA_PPE(x)        (2 * (x) + 1)   /* for FMPPPEx */
 105
 106 #endif /* STELLARIS_H */