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 #define CFI_STATUS_POLL_MASK_DQ5_DQ6_DQ7 0xE0 /* DQ5..DQ7 */
  27 #define CFI_STATUS_POLL_MASK_DQ6_DQ7     0xC0 /* DQ6..DQ7 */
  28
  29 typedef struct cfi_flash_bank_s
  30 {
  31         working_area_t *write_algorithm;
  32
  33         int x16_as_x8;
  34         int jedec_probe;
  35         int not_cfi;
  36         int probed;
  37
  38         u16 manufacturer;
  39         u16 device_id;
  40
  41         char qry[3];
  42
  43         /* identification string */
  44         u16 pri_id;
  45         u16 pri_addr;
  46         u16 alt_id;
  47         u16 alt_addr;
  48
  49         /* device-system interface */
  50         u8 vcc_min;
  51         u8 vcc_max;
  52         u8 vpp_min;
  53         u8 vpp_max;
  54         u8 word_write_timeout_typ;
  55         u8 buf_write_timeout_typ;
  56         u8 block_erase_timeout_typ;
  57         u8 chip_erase_timeout_typ;
  58         u8 word_write_timeout_max;
  59         u8 buf_write_timeout_max;
  60         u8 block_erase_timeout_max;
  61         u8 chip_erase_timeout_max;
  62
  63         u8 status_poll_mask;
  64
  65         /* flash geometry */
  66         u32 dev_size;
  67         u16 interface_desc;
  68         u16 max_buf_write_size;
  69         u8 num_erase_regions;
  70         u32 *erase_region_info;
  71
  72         void *pri_ext;
  73         void *alt_ext;
  74 } cfi_flash_bank_t;
  75
  76 /* Intel primary extended query table
  77  * as defined for the Advanced+ Boot Block Flash Memory (C3)
  78  * and used by the linux kernel cfi driver (as of 2.6.14)
  79  */
  80 typedef struct cfi_intel_pri_ext_s
  81 {
  82         char pri[3];
  83         u8 major_version;
  84         u8 minor_version;
  85         u32 feature_support;
  86         u8 suspend_cmd_support;
  87         u16 blk_status_reg_mask;
  88         u8 vcc_optimal;
  89         u8 vpp_optimal;
  90         u8 num_protection_fields;
  91         u16 prot_reg_addr;
  92         u8 fact_prot_reg_size;
  93         u8 user_prot_reg_size;
  94         u8 extra[0];
  95 } cfi_intel_pri_ext_t;
  96
  97 /* Spansion primary extended query table as defined for and used by
  98  * the linux kernel cfi driver (as of 2.6.15)
  99  */
 100 typedef struct cfi_spansion_pri_ext_s
 101 {
 102         u8  pri[3];
 103         u8  major_version;
 104         u8  minor_version;
 105         u8  SiliconRevision; /* bits 1-0: Address Sensitive Unlock */
 106         u8  EraseSuspend;
 107         u8  BlkProt;
 108         u8  TmpBlkUnprotect;
 109         u8  BlkProtUnprot;
 110         u8  SimultaneousOps;
 111         u8  BurstMode;
 112         u8  PageMode;
 113         u8  VppMin;
 114         u8  VppMax;
 115         u8  TopBottom;
 116         int _reversed_geometry;
 117         u32 _unlock1;
 118         u32 _unlock2;
 119 } cfi_spansion_pri_ext_t;
 120
 121 /* Atmel primary extended query table as defined for and used by
 122  * the linux kernel cfi driver (as of 2.6.20+)
 123  */
 124 typedef struct cfi_atmel_pri_ext_s
 125 {
 126         u8 pri[3];
 127         u8 major_version;
 128         u8 minor_version;
 129         u8 features;
 130         u8 bottom_boot;
 131         u8 burst_mode;
 132         u8 page_mode;
 133 } cfi_atmel_pri_ext_t;
 134
 135 enum {
 136         CFI_UNLOCK_555_2AA,
 137         CFI_UNLOCK_5555_2AAA,
 138 };
 139
 140 typedef struct cfi_unlock_addresses_s
 141 {
 142         u32 unlock1;
 143         u32 unlock2;
 144 } cfi_unlock_addresses_t;
 145
 146 typedef struct cfi_fixup_s
 147 {
 148         u16 mfr;
 149         u16 id;
 150         void (*fixup)(flash_bank_t *flash, void *param);
 151         void *param;
 152 } cfi_fixup_t;
 153
 154 #define CFI_MFR_AMD             0x0001
 155 #define CFI_MFR_FUJITSU 0x0004
 156 #define CFI_MFR_ATMEL   0x001F
 157 #define CFI_MFR_ST              0x0020  /* STMicroelectronics */
 158 #define CFI_MFR_AMIC    0x0037
 159 #define CFI_MFR_SST             0x00BF
 160 #define CFI_MFR_MX              0x00C2
 161
 162 #define CFI_MFR_ANY             0xffff
 163 #define CFI_ID_ANY              0xffff
 164
 165 #endif /* CFI_H */