1 /* 2 * (C) Copyright 2009 3 * Stefan Roese, DENX Software Engineering, sr@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef __CFI_FLASH_H__ 9 #define __CFI_FLASH_H__ 10 11 #define FLASH_CMD_CFI 0x98 12 #define FLASH_CMD_READ_ID 0x90 13 #define FLASH_CMD_RESET 0xff 14 #define FLASH_CMD_BLOCK_ERASE 0x20 15 #define FLASH_CMD_ERASE_CONFIRM 0xD0 16 #define FLASH_CMD_WRITE 0x40 17 #define FLASH_CMD_PROTECT 0x60 18 #define FLASH_CMD_SETUP 0x60 19 #define FLASH_CMD_SET_CR_CONFIRM 0x03 20 #define FLASH_CMD_PROTECT_SET 0x01 21 #define FLASH_CMD_PROTECT_CLEAR 0xD0 22 #define FLASH_CMD_CLEAR_STATUS 0x50 23 #define FLASH_CMD_READ_STATUS 0x70 24 #define FLASH_CMD_WRITE_TO_BUFFER 0xE8 25 #define FLASH_CMD_WRITE_BUFFER_PROG 0xE9 26 #define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0 27 28 #define FLASH_STATUS_DONE 0x80 29 #define FLASH_STATUS_ESS 0x40 30 #define FLASH_STATUS_ECLBS 0x20 31 #define FLASH_STATUS_PSLBS 0x10 32 #define FLASH_STATUS_VPENS 0x08 33 #define FLASH_STATUS_PSS 0x04 34 #define FLASH_STATUS_DPS 0x02 35 #define FLASH_STATUS_R 0x01 36 #define FLASH_STATUS_PROTECT 0x01 37 38 #define AMD_CMD_RESET 0xF0 39 #define AMD_CMD_WRITE 0xA0 40 #define AMD_CMD_ERASE_START 0x80 41 #define AMD_CMD_ERASE_SECTOR 0x30 42 #define AMD_CMD_UNLOCK_START 0xAA 43 #define AMD_CMD_UNLOCK_ACK 0x55 44 #define AMD_CMD_WRITE_TO_BUFFER 0x25 45 #define AMD_CMD_WRITE_BUFFER_CONFIRM 0x29 46 #define AMD_CMD_SET_PPB_ENTRY 0xC0 47 #define AMD_CMD_SET_PPB_EXIT_BC1 0x90 48 #define AMD_CMD_SET_PPB_EXIT_BC2 0x00 49 #define AMD_CMD_PPB_UNLOCK_BC1 0x80 50 #define AMD_CMD_PPB_UNLOCK_BC2 0x30 51 #define AMD_CMD_PPB_LOCK_BC1 0xA0 52 #define AMD_CMD_PPB_LOCK_BC2 0x00 53 54 #define AMD_STATUS_TOGGLE 0x40 55 #define AMD_STATUS_ERROR 0x20 56 57 #define ATM_CMD_UNLOCK_SECT 0x70 58 #define ATM_CMD_SOFTLOCK_START 0x80 59 #define ATM_CMD_LOCK_SECT 0x40 60 61 #define FLASH_CONTINUATION_CODE 0x7F 62 63 #define FLASH_OFFSET_MANUFACTURER_ID 0x00 64 #define FLASH_OFFSET_DEVICE_ID 0x01 65 #define FLASH_OFFSET_LOWER_SW_BITS 0x0C 66 #define FLASH_OFFSET_DEVICE_ID2 0x0E 67 #define FLASH_OFFSET_DEVICE_ID3 0x0F 68 #define FLASH_OFFSET_CFI 0x55 69 #define FLASH_OFFSET_CFI_ALT 0x555 70 #define FLASH_OFFSET_CFI_RESP 0x10 71 #define FLASH_OFFSET_PRIMARY_VENDOR 0x13 72 /* extended query table primary address */ 73 #define FLASH_OFFSET_EXT_QUERY_T_P_ADDR 0x15 74 #define FLASH_OFFSET_WTOUT 0x1F 75 #define FLASH_OFFSET_WBTOUT 0x20 76 #define FLASH_OFFSET_ETOUT 0x21 77 #define FLASH_OFFSET_CETOUT 0x22 78 #define FLASH_OFFSET_WMAX_TOUT 0x23 79 #define FLASH_OFFSET_WBMAX_TOUT 0x24 80 #define FLASH_OFFSET_EMAX_TOUT 0x25 81 #define FLASH_OFFSET_CEMAX_TOUT 0x26 82 #define FLASH_OFFSET_SIZE 0x27 83 #define FLASH_OFFSET_INTERFACE 0x28 84 #define FLASH_OFFSET_BUFFER_SIZE 0x2A 85 #define FLASH_OFFSET_NUM_ERASE_REGIONS 0x2C 86 #define FLASH_OFFSET_ERASE_REGIONS 0x2D 87 #define FLASH_OFFSET_PROTECT 0x02 88 #define FLASH_OFFSET_USER_PROTECTION 0x85 89 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 90 91 #define CFI_CMDSET_NONE 0 92 #define CFI_CMDSET_INTEL_EXTENDED 1 93 #define CFI_CMDSET_AMD_STANDARD 2 94 #define CFI_CMDSET_INTEL_STANDARD 3 95 #define CFI_CMDSET_AMD_EXTENDED 4 96 #define CFI_CMDSET_MITSU_STANDARD 256 97 #define CFI_CMDSET_MITSU_EXTENDED 257 98 #define CFI_CMDSET_SST 258 99 #define CFI_CMDSET_INTEL_PROG_REGIONS 512 100 101 #ifdef CONFIG_SYS_FLASH_CFI_AMD_RESET /* needed for STM_ID_29W320DB on UC100 */ 102 # undef FLASH_CMD_RESET 103 # define FLASH_CMD_RESET AMD_CMD_RESET /* use AMD-Reset instead */ 104 #endif 105 106 #define NUM_ERASE_REGIONS 4 /* max. number of erase regions */ 107 108 typedef union { 109 u8 w8; 110 u16 w16; 111 u32 w32; 112 u64 w64; 113 } cfiword_t; 114 115 /* CFI standard query structure */ 116 /* The offsets and sizes of this packed structure members correspond 117 * to the actual layout in CFI Flash chips. Some 16- and 32-bit members 118 * are unaligned and must be accessed with explicit unaligned access macros. 119 */ 120 struct cfi_qry { 121 u8 qry[3]; 122 u16 p_id; /* unaligned */ 123 u16 p_adr; /* unaligned */ 124 u16 a_id; /* unaligned */ 125 u16 a_adr; /* unaligned */ 126 u8 vcc_min; 127 u8 vcc_max; 128 u8 vpp_min; 129 u8 vpp_max; 130 u8 word_write_timeout_typ; 131 u8 buf_write_timeout_typ; 132 u8 block_erase_timeout_typ; 133 u8 chip_erase_timeout_typ; 134 u8 word_write_timeout_max; 135 u8 buf_write_timeout_max; 136 u8 block_erase_timeout_max; 137 u8 chip_erase_timeout_max; 138 u8 dev_size; 139 u16 interface_desc; /* aligned */ 140 u16 max_buf_write_size; /* aligned */ 141 u8 num_erase_regions; 142 u32 erase_region_info[NUM_ERASE_REGIONS]; /* unaligned */ 143 } __attribute__((packed)); 144 145 struct cfi_pri_hdr { 146 u8 pri[3]; 147 u8 major_version; 148 u8 minor_version; 149 } __attribute__((packed)); 150 151 #ifndef CONFIG_SYS_FLASH_BANKS_LIST 152 #define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE } 153 #endif 154 155 /* 156 * CFI_MAX_FLASH_BANKS only used for flash_info struct declaration. 157 * 158 * Use CONFIG_SYS_MAX_FLASH_BANKS_DETECT if defined 159 */ 160 #if defined(CONFIG_SYS_MAX_FLASH_BANKS_DETECT) 161 #define CONFIG_SYS_MAX_FLASH_BANKS (cfi_flash_num_flash_banks) 162 #define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS_DETECT 163 /* board code can update this variable before CFI detection */ 164 extern int cfi_flash_num_flash_banks; 165 #else 166 #define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS 167 #endif 168 169 phys_addr_t cfi_flash_bank_addr(int i); 170 unsigned long cfi_flash_bank_size(int i); 171 void flash_cmd_reset(flash_info_t *info); 172 173 #ifdef CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS 174 void flash_write8(u8 value, void *addr); 175 void flash_write16(u16 value, void *addr); 176 void flash_write32(u32 value, void *addr); 177 void flash_write64(u64 value, void *addr); 178 u8 flash_read8(void *addr); 179 u16 flash_read16(void *addr); 180 u32 flash_read32(void *addr); 181 u64 flash_read64(void *addr); 182 #endif 183 184 #endif /* __CFI_FLASH_H__ */ 185