src/flash/nor/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 #define CFI_STATUS_POLL_MASK_DQ5_DQ6_DQ7 0xE0 /* DQ5..DQ7 */
  24 #define CFI_STATUS_POLL_MASK_DQ6_DQ7     0xC0 /* DQ6..DQ7 */
  25
  26 struct cfi_flash_bank
  27 {
  28         struct working_area *write_algorithm;
  29
  30         int x16_as_x8;
  31         int jedec_probe;
  32         int not_cfi;
  33         int probed;
  34
  35         uint16_t manufacturer;
  36         uint16_t device_id;
  37
  38         uint8_t qry[3];
  39
  40         /* identification string */
  41         uint16_t pri_id;
  42         uint16_t pri_addr;
  43         uint16_t alt_id;
  44         uint16_t alt_addr;
  45
  46         /* device-system interface */
  47         uint8_t vcc_min;
  48         uint8_t vcc_max;
  49         uint8_t vpp_min;
  50         uint8_t vpp_max;
  51         uint8_t word_write_timeout_typ;
  52         uint8_t buf_write_timeout_typ;
  53         uint8_t block_erase_timeout_typ;
  54         uint8_t chip_erase_timeout_typ;
  55         uint8_t word_write_timeout_max;
  56         uint8_t buf_write_timeout_max;
  57         uint8_t block_erase_timeout_max;
  58         uint8_t chip_erase_timeout_max;
  59
  60         uint8_t status_poll_mask;
  61
  62         /* flash geometry */
  63         uint32_t dev_size;
  64         uint16_t interface_desc;
  65         uint16_t max_buf_write_size;
  66         uint8_t num_erase_regions;
  67         uint32_t *erase_region_info;
  68
  69         void *pri_ext;
  70         void *alt_ext;
  71
  72         /* calculated timeouts */
  73         unsigned word_write_timeout;
  74         unsigned buf_write_timeout;
  75         unsigned block_erase_timeout;
  76         unsigned chip_erase_timeout;
  77 };
  78
  79 /* Intel primary extended query table
  80  * as defined for the Advanced+ Boot Block Flash Memory (C3)
  81  * and used by the linux kernel cfi driver (as of 2.6.14)
  82  */
  83 struct cfi_intel_pri_ext
  84 {
  85         uint8_t pri[3];
  86         uint8_t major_version;
  87         uint8_t minor_version;
  88         uint32_t feature_support;
  89         uint8_t suspend_cmd_support;
  90         uint16_t blk_status_reg_mask;
  91         uint8_t vcc_optimal;
  92         uint8_t vpp_optimal;
  93         uint8_t num_protection_fields;
  94         uint16_t prot_reg_addr;
  95         uint8_t fact_prot_reg_size;
  96         uint8_t user_prot_reg_size;
  97         uint8_t extra[0];
  98 };
  99
 100 /* Spansion primary extended query table as defined for and used by
 101  * the linux kernel cfi driver (as of 2.6.15)
 102  */
 103 struct cfi_spansion_pri_ext
 104 {
 105         uint8_t  pri[3];
 106         uint8_t  major_version;
 107         uint8_t  minor_version;
 108         uint8_t  SiliconRevision; /* bits 1-0: Address Sensitive Unlock */
 109         uint8_t  EraseSuspend;
 110         uint8_t  BlkProt;
 111         uint8_t  TmpBlkUnprotect;
 112         uint8_t  BlkProtUnprot;
 113         uint8_t  SimultaneousOps;
 114         uint8_t  BurstMode;
 115         uint8_t  PageMode;
 116         uint8_t  VppMin;
 117         uint8_t  VppMax;
 118         uint8_t  TopBottom;
 119         int _reversed_geometry;
 120         uint32_t _unlock1;
 121         uint32_t _unlock2;
 122 };
 123
 124 /* Atmel primary extended query table as defined for and used by
 125  * the linux kernel cfi driver (as of 2.6.20+)
 126  */
 127 struct cfi_atmel_pri_ext
 128 {
 129         uint8_t pri[3];
 130         uint8_t major_version;
 131         uint8_t minor_version;
 132         uint8_t features;
 133         uint8_t bottom_boot;
 134         uint8_t burst_mode;
 135         uint8_t page_mode;
 136 };
 137
 138 enum {
 139         CFI_UNLOCK_555_2AA,
 140         CFI_UNLOCK_5555_2AAA,
 141 };
 142
 143 struct cfi_unlock_addresses
 144 {
 145         uint32_t unlock1;
 146         uint32_t unlock2;
 147 };
 148
 149 struct cfi_fixup
 150 {
 151         uint16_t mfr;
 152         uint16_t id;
 153         void (*fixup)(struct flash_bank *bank, void *param);
 154         void *param;
 155 };
 156
 157 #define CFI_MFR_AMD             0x0001
 158 #define CFI_MFR_FUJITSU 0x0004
 159 #define CFI_MFR_ATMEL   0x001F
 160 #define CFI_MFR_ST              0x0020  /* STMicroelectronics */
 161 #define CFI_MFR_AMIC    0x0037
 162 #define CFI_MFR_SST             0x00BF
 163 #define CFI_MFR_MX              0x00C2
 164
 165 #define CFI_MFR_ANY             0xffff
 166 #define CFI_ID_ANY              0xffff
 167
 168 #endif /* CFI_H */