1 /* 2 * (C) Copyright 2009 3 * Stefan Roese, DENX Software Engineering, sr@denx.de. 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 * 23 */ 24 25 #ifndef __CFI_FLASH_H__ 26 #define __CFI_FLASH_H__ 27 28 #define FLASH_CMD_CFI 0x98 29 #define FLASH_CMD_READ_ID 0x90 30 #define FLASH_CMD_RESET 0xff 31 #define FLASH_CMD_BLOCK_ERASE 0x20 32 #define FLASH_CMD_ERASE_CONFIRM 0xD0 33 #define FLASH_CMD_WRITE 0x40 34 #define FLASH_CMD_PROTECT 0x60 35 #define FLASH_CMD_SETUP 0x60 36 #define FLASH_CMD_SET_CR_CONFIRM 0x03 37 #define FLASH_CMD_PROTECT_SET 0x01 38 #define FLASH_CMD_PROTECT_CLEAR 0xD0 39 #define FLASH_CMD_CLEAR_STATUS 0x50 40 #define FLASH_CMD_READ_STATUS 0x70 41 #define FLASH_CMD_WRITE_TO_BUFFER 0xE8 42 #define FLASH_CMD_WRITE_BUFFER_PROG 0xE9 43 #define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0 44 45 #define FLASH_STATUS_DONE 0x80 46 #define FLASH_STATUS_ESS 0x40 47 #define FLASH_STATUS_ECLBS 0x20 48 #define FLASH_STATUS_PSLBS 0x10 49 #define FLASH_STATUS_VPENS 0x08 50 #define FLASH_STATUS_PSS 0x04 51 #define FLASH_STATUS_DPS 0x02 52 #define FLASH_STATUS_R 0x01 53 #define FLASH_STATUS_PROTECT 0x01 54 55 #define AMD_CMD_RESET 0xF0 56 #define AMD_CMD_WRITE 0xA0 57 #define AMD_CMD_ERASE_START 0x80 58 #define AMD_CMD_ERASE_SECTOR 0x30 59 #define AMD_CMD_UNLOCK_START 0xAA 60 #define AMD_CMD_UNLOCK_ACK 0x55 61 #define AMD_CMD_WRITE_TO_BUFFER 0x25 62 #define AMD_CMD_WRITE_BUFFER_CONFIRM 0x29 63 #define AMD_CMD_SET_PPB_ENTRY 0xC0 64 #define AMD_CMD_SET_PPB_EXIT_BC1 0x90 65 #define AMD_CMD_SET_PPB_EXIT_BC2 0x00 66 #define AMD_CMD_PPB_UNLOCK_BC1 0x80 67 #define AMD_CMD_PPB_UNLOCK_BC2 0x30 68 #define AMD_CMD_PPB_LOCK_BC1 0xA0 69 #define AMD_CMD_PPB_LOCK_BC2 0x00 70 71 #define AMD_STATUS_TOGGLE 0x40 72 #define AMD_STATUS_ERROR 0x20 73 74 #define ATM_CMD_UNLOCK_SECT 0x70 75 #define ATM_CMD_SOFTLOCK_START 0x80 76 #define ATM_CMD_LOCK_SECT 0x40 77 78 #define FLASH_CONTINUATION_CODE 0x7F 79 80 #define FLASH_OFFSET_MANUFACTURER_ID 0x00 81 #define FLASH_OFFSET_DEVICE_ID 0x01 82 #define FLASH_OFFSET_DEVICE_ID2 0x0E 83 #define FLASH_OFFSET_DEVICE_ID3 0x0F 84 #define FLASH_OFFSET_CFI 0x55 85 #define FLASH_OFFSET_CFI_ALT 0x555 86 #define FLASH_OFFSET_CFI_RESP 0x10 87 #define FLASH_OFFSET_PRIMARY_VENDOR 0x13 88 /* extended query table primary address */ 89 #define FLASH_OFFSET_EXT_QUERY_T_P_ADDR 0x15 90 #define FLASH_OFFSET_WTOUT 0x1F 91 #define FLASH_OFFSET_WBTOUT 0x20 92 #define FLASH_OFFSET_ETOUT 0x21 93 #define FLASH_OFFSET_CETOUT 0x22 94 #define FLASH_OFFSET_WMAX_TOUT 0x23 95 #define FLASH_OFFSET_WBMAX_TOUT 0x24 96 #define FLASH_OFFSET_EMAX_TOUT 0x25 97 #define FLASH_OFFSET_CEMAX_TOUT 0x26 98 #define FLASH_OFFSET_SIZE 0x27 99 #define FLASH_OFFSET_INTERFACE 0x28 100 #define FLASH_OFFSET_BUFFER_SIZE 0x2A 101 #define FLASH_OFFSET_NUM_ERASE_REGIONS 0x2C 102 #define FLASH_OFFSET_ERASE_REGIONS 0x2D 103 #define FLASH_OFFSET_PROTECT 0x02 104 #define FLASH_OFFSET_USER_PROTECTION 0x85 105 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 106 107 #define CFI_CMDSET_NONE 0 108 #define CFI_CMDSET_INTEL_EXTENDED 1 109 #define CFI_CMDSET_AMD_STANDARD 2 110 #define CFI_CMDSET_INTEL_STANDARD 3 111 #define CFI_CMDSET_AMD_EXTENDED 4 112 #define CFI_CMDSET_MITSU_STANDARD 256 113 #define CFI_CMDSET_MITSU_EXTENDED 257 114 #define CFI_CMDSET_SST 258 115 #define CFI_CMDSET_INTEL_PROG_REGIONS 512 116 117 #ifdef CONFIG_SYS_FLASH_CFI_AMD_RESET /* needed for STM_ID_29W320DB on UC100 */ 118 # undef FLASH_CMD_RESET 119 # define FLASH_CMD_RESET AMD_CMD_RESET /* use AMD-Reset instead */ 120 #endif 121 122 #define NUM_ERASE_REGIONS 4 /* max. number of erase regions */ 123 124 typedef union { 125 unsigned char c; 126 unsigned short w; 127 unsigned long l; 128 unsigned long long ll; 129 } cfiword_t; 130 131 /* CFI standard query structure */ 132 /* The offsets and sizes of this packed structure members correspond 133 * to the actual layout in CFI Flash chips. Some 16- and 32-bit members 134 * are unaligned and must be accessed with explicit unaligned access macros. 135 */ 136 struct cfi_qry { 137 u8 qry[3]; 138 u16 p_id; /* unaligned */ 139 u16 p_adr; /* unaligned */ 140 u16 a_id; /* unaligned */ 141 u16 a_adr; /* unaligned */ 142 u8 vcc_min; 143 u8 vcc_max; 144 u8 vpp_min; 145 u8 vpp_max; 146 u8 word_write_timeout_typ; 147 u8 buf_write_timeout_typ; 148 u8 block_erase_timeout_typ; 149 u8 chip_erase_timeout_typ; 150 u8 word_write_timeout_max; 151 u8 buf_write_timeout_max; 152 u8 block_erase_timeout_max; 153 u8 chip_erase_timeout_max; 154 u8 dev_size; 155 u16 interface_desc; /* aligned */ 156 u16 max_buf_write_size; /* aligned */ 157 u8 num_erase_regions; 158 u32 erase_region_info[NUM_ERASE_REGIONS]; /* unaligned */ 159 } __attribute__((packed)); 160 161 struct cfi_pri_hdr { 162 u8 pri[3]; 163 u8 major_version; 164 u8 minor_version; 165 } __attribute__((packed)); 166 167 #ifndef CONFIG_SYS_FLASH_BANKS_LIST 168 #define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE } 169 #endif 170 171 /* 172 * CFI_MAX_FLASH_BANKS only used for flash_info struct declaration. 173 * 174 * Use CONFIG_SYS_MAX_FLASH_BANKS_DETECT if defined 175 */ 176 #if defined(CONFIG_SYS_MAX_FLASH_BANKS_DETECT) 177 #define CONFIG_SYS_MAX_FLASH_BANKS (cfi_flash_num_flash_banks) 178 #define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS_DETECT 179 /* board code can update this variable before CFI detection */ 180 extern int cfi_flash_num_flash_banks; 181 #else 182 #define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS 183 #endif 184 185 void flash_write_cmd(flash_info_t * info, flash_sect_t sect, 186 uint offset, u32 cmd); 187 188 #endif /* __CFI_FLASH_H__ */ 189