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         working_area_t *write_algorithm;
  29
  30
  31         int x16_as_x8;
  32         int jedec_probe;
  33         int not_cfi;
  34         int probed;
  35
  36         u16 manufacturer;
  37         u16 device_id;
  38
  39         char qry[3];
  40
  41         /* identification string */
  42         u16 pri_id;
  43         u16 pri_addr;
  44         u16 alt_id;
  45         u16 alt_addr;
  46
  47         /* device-system interface */
  48         u8 vcc_min;
  49         u8 vcc_max;
  50         u8 vpp_min;
  51         u8 vpp_max;
  52         u8 word_write_timeout_typ;
  53         u8 buf_write_timeout_typ;
  54         u8 block_erase_timeout_typ;
  55         u8 chip_erase_timeout_typ;
  56         u8 word_write_timeout_max;
  57         u8 buf_write_timeout_max;
  58         u8 block_erase_timeout_max;
  59         u8 chip_erase_timeout_max;
  60
  61         /* flash geometry */
  62         u8 dev_size;
  63         u16 interface_desc;
  64         u16 max_buf_write_size;
  65         u8 num_erase_regions;
  66         u32 *erase_region_info;
  67
  68         void *pri_ext;
  69         void *alt_ext;
  70 } cfi_flash_bank_t;
  71
  72 /* Intel primary extended query table
  73  * as defined for the Advanced+ Boot Block Flash Memory (C3)
  74  * and used by the linux kernel cfi driver (as of 2.6.14)
  75  */
  76 typedef struct cfi_intel_pri_ext_s
  77 {
  78         char pri[3];
  79         u8 major_version;
  80         u8 minor_version;
  81         u32 feature_support;
  82         u8 suspend_cmd_support;
  83         u16 blk_status_reg_mask;
  84         u8 vcc_optimal;
  85         u8 vpp_optimal;
  86         u8 num_protection_fields;
  87         u16 prot_reg_addr;
  88         u8 fact_prot_reg_size;
  89         u8 user_prot_reg_size;
  90         u8 extra[0];
  91 } cfi_intel_pri_ext_t;
  92
  93 /* Spansion primary extended query table as defined for and used by
  94  * the linux kernel cfi driver (as of 2.6.15)
  95  */
  96 typedef struct cfi_spansion_pri_ext_s
  97 {
  98         u8  pri[3];
  99         u8  major_version;
 100         u8  minor_version;
 101         u8  SiliconRevision; /* bits 1-0: Address Sensitive Unlock */
 102         u8  EraseSuspend;
 103         u8  BlkProt;
 104         u8  TmpBlkUnprotect;
 105         u8  BlkProtUnprot;
 106         u8  SimultaneousOps;
 107         u8  BurstMode;
 108         u8  PageMode;
 109         u8  VppMin;
 110         u8  VppMax;
 111         u8  TopBottom;
 112         int _reversed_geometry;
 113         u32 _unlock1;
 114         u32 _unlock2;
 115 } cfi_spansion_pri_ext_t;
 116
 117 /* Atmel primary extended query table as defined for and used by
 118  * the linux kernel cfi driver (as of 2.6.20+)
 119  */
 120 typedef struct cfi_atmel_pri_ext_s
 121 {
 122         u8 pri[3];
 123         u8 major_version;
 124         u8 minor_version;
 125         u8 features;
 126         u8 bottom_boot;
 127         u8 burst_mode;
 128         u8 page_mode;
 129 } cfi_atmel_pri_ext_t;
 130
 131 enum {
 132         CFI_UNLOCK_555_2AA,
 133         CFI_UNLOCK_5555_2AAA,
 134 };
 135
 136 typedef struct cfi_unlock_addresses_s
 137 {
 138         u32 unlock1;
 139         u32 unlock2;
 140 } cfi_unlock_addresses_t;
 141
 142 typedef struct cfi_fixup_s
 143 {
 144         u16 mfr;
 145         u16 id;
 146         void (*fixup)(flash_bank_t *flash, void *param);
 147         void *param;
 148 } cfi_fixup_t;
 149
 150 #define CFI_MFR_AMD             0x0001
 151 #define CFI_MFR_FUJITSU         0x0004
 152 #define CFI_MFR_ATMEL   0x001F
 153 #define CFI_MFR_ST              0x0020  /* STMicroelectronics */
 154 #define CFI_MFR_SST             0x00BF
 155
 156 #define CFI_MFR_ANY             0xffff
 157 #define CFI_ID_ANY              0xffff
 158
 159 #endif /* CFI_H */