src/flash/cfi.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   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 CFI_H
  21 #define CFI_H
  22
  23 #include "flash.h"
  24 #include "target.h"
  25
  26 typedef struct cfi_flash_bank_s
  27 {
  28         struct target_s *target;
  29         working_area_t *write_algorithm;
  30         working_area_t *erase_check_algorithm;
  31
  32         char qry[3];
  33
  34         /* identification string */
  35         u16 pri_id;
  36         u16 pri_addr;
  37         u16 alt_id;
  38         u16 alt_addr;
  39
  40         /* device-system interface */
  41         u8 vcc_min;
  42         u8 vcc_max;
  43         u8 vpp_min;
  44         u8 vpp_max;
  45         u8 word_write_timeout_typ;
  46         u8 buf_write_timeout_typ;
  47         u8 block_erase_timeout_typ;
  48         u8 chip_erase_timeout_typ;
  49         u8 word_write_timeout_max;
  50         u8 buf_write_timeout_max;
  51         u8 block_erase_timeout_max;
  52         u8 chip_erase_timeout_max;
  53
  54         /* flash geometry */
  55         u8 dev_size;
  56         u16 interface_desc;
  57         u16 max_buf_write_size;
  58         u8 num_erase_regions;
  59         u32 *erase_region_info;
  60
  61         void *pri_ext;
  62         void *alt_ext;
  63 } cfi_flash_bank_t;
  64
  65 /* Intel primary extended query table
  66  * as defined for the Advanced+ Boot Block Flash Memory (C3)
  67  * and used by the linux kernel cfi driver (as of 2.6.14)
  68  */
  69 typedef struct cfi_intel_pri_ext_s
  70 {
  71         char pri[3];
  72         u8 major_version;
  73         u8 minor_version;
  74         u32 feature_support;
  75         u8 suspend_cmd_support;
  76         u16 blk_status_reg_mask;
  77         u8 vcc_optimal;
  78         u8 vpp_optimal;
  79         u8 num_protection_fields;
  80         u16 prot_reg_addr;
  81         u8 fact_prot_reg_size;
  82         u8 user_prot_reg_size;
  83         u8 extra[0];
  84 } cfi_intel_pri_ext_t;
  85
  86 #endif /* CFI_H */