1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (c) 2018 - Bootlin 4 * 5 * Author: Boris Brezillon <boris.brezillon@bootlin.com> 6 * 7 * Header containing internal definitions to be used only by core files. 8 * NAND controller drivers should not include this file. 9 */ 10 11 #ifndef __LINUX_RAWNAND_INTERNALS 12 #define __LINUX_RAWNAND_INTERNALS 13 14 #include <linux/mtd/rawnand.h> 15 16 /* 17 * NAND Flash Manufacturer ID Codes 18 */ 19 #define NAND_MFR_AMD 0x01 20 #define NAND_MFR_ATO 0x9b 21 #define NAND_MFR_EON 0x92 22 #define NAND_MFR_ESMT 0xc8 23 #define NAND_MFR_FUJITSU 0x04 24 #define NAND_MFR_HYNIX 0xad 25 #define NAND_MFR_INTEL 0x89 26 #define NAND_MFR_MACRONIX 0xc2 27 #define NAND_MFR_MICRON 0x2c 28 #define NAND_MFR_NATIONAL 0x8f 29 #define NAND_MFR_RENESAS 0x07 30 #define NAND_MFR_SAMSUNG 0xec 31 #define NAND_MFR_SANDISK 0x45 32 #define NAND_MFR_STMICRO 0x20 33 /* Kioxia is new name of Toshiba memory. */ 34 #define NAND_MFR_TOSHIBA 0x98 35 #define NAND_MFR_WINBOND 0xef 36 37 /** 38 * struct nand_manufacturer_ops - NAND Manufacturer operations 39 * @detect: detect the NAND memory organization and capabilities 40 * @init: initialize all vendor specific fields (like the ->read_retry() 41 * implementation) if any. 42 * @cleanup: the ->init() function may have allocated resources, ->cleanup() 43 * is here to let vendor specific code release those resources. 44 * @fixup_onfi_param_page: apply vendor specific fixups to the ONFI parameter 45 * page. This is called after the checksum is verified. 46 */ 47 struct nand_manufacturer_ops { 48 void (*detect)(struct nand_chip *chip); 49 int (*init)(struct nand_chip *chip); 50 void (*cleanup)(struct nand_chip *chip); 51 void (*fixup_onfi_param_page)(struct nand_chip *chip, 52 struct nand_onfi_params *p); 53 }; 54 55 /** 56 * struct nand_manufacturer_desc - NAND Flash Manufacturer descriptor 57 * @name: Manufacturer name 58 * @id: manufacturer ID code of device. 59 * @ops: manufacturer operations 60 */ 61 struct nand_manufacturer_desc { 62 int id; 63 char *name; 64 const struct nand_manufacturer_ops *ops; 65 }; 66 67 68 extern struct nand_flash_dev nand_flash_ids[]; 69 70 extern const struct nand_manufacturer_ops amd_nand_manuf_ops; 71 extern const struct nand_manufacturer_ops esmt_nand_manuf_ops; 72 extern const struct nand_manufacturer_ops hynix_nand_manuf_ops; 73 extern const struct nand_manufacturer_ops macronix_nand_manuf_ops; 74 extern const struct nand_manufacturer_ops micron_nand_manuf_ops; 75 extern const struct nand_manufacturer_ops samsung_nand_manuf_ops; 76 extern const struct nand_manufacturer_ops toshiba_nand_manuf_ops; 77 78 /* MLC pairing schemes */ 79 extern const struct mtd_pairing_scheme dist3_pairing_scheme; 80 81 /* Core functions */ 82 const struct nand_manufacturer_desc *nand_get_manufacturer_desc(u8 id); 83 int nand_bbm_get_next_page(struct nand_chip *chip, int page); 84 int nand_markbad_bbm(struct nand_chip *chip, loff_t ofs); 85 int nand_erase_nand(struct nand_chip *chip, struct erase_info *instr, 86 int allowbbt); 87 void onfi_fill_interface_config(struct nand_chip *chip, 88 struct nand_interface_config *iface, 89 enum nand_interface_type type, 90 unsigned int timing_mode); 91 unsigned int 92 onfi_find_closest_sdr_mode(const struct nand_sdr_timings *spec_timings); 93 int nand_choose_best_sdr_timings(struct nand_chip *chip, 94 struct nand_interface_config *iface, 95 struct nand_sdr_timings *spec_timings); 96 const struct nand_interface_config *nand_get_reset_interface_config(void); 97 int nand_get_features(struct nand_chip *chip, int addr, u8 *subfeature_param); 98 int nand_set_features(struct nand_chip *chip, int addr, u8 *subfeature_param); 99 int nand_read_page_raw_notsupp(struct nand_chip *chip, u8 *buf, 100 int oob_required, int page); 101 int nand_write_page_raw_notsupp(struct nand_chip *chip, const u8 *buf, 102 int oob_required, int page); 103 int nand_exit_status_op(struct nand_chip *chip); 104 int nand_read_param_page_op(struct nand_chip *chip, u8 page, void *buf, 105 unsigned int len); 106 void nand_decode_ext_id(struct nand_chip *chip); 107 void panic_nand_wait(struct nand_chip *chip, unsigned long timeo); 108 void sanitize_string(uint8_t *s, size_t len); 109 110 static inline bool nand_has_exec_op(struct nand_chip *chip) 111 { 112 if (!chip->controller || !chip->controller->ops || 113 !chip->controller->ops->exec_op) 114 return false; 115 116 return true; 117 } 118 119 static inline int nand_check_op(struct nand_chip *chip, 120 const struct nand_operation *op) 121 { 122 if (!nand_has_exec_op(chip)) 123 return 0; 124 125 return chip->controller->ops->exec_op(chip, op, true); 126 } 127 128 static inline int nand_exec_op(struct nand_chip *chip, 129 const struct nand_operation *op) 130 { 131 if (!nand_has_exec_op(chip)) 132 return -ENOTSUPP; 133 134 if (WARN_ON(op->cs >= nanddev_ntargets(&chip->base))) 135 return -EINVAL; 136 137 return chip->controller->ops->exec_op(chip, op, false); 138 } 139 140 static inline bool nand_controller_can_setup_interface(struct nand_chip *chip) 141 { 142 if (!chip->controller || !chip->controller->ops || 143 !chip->controller->ops->setup_interface) 144 return false; 145 146 if (chip->options & NAND_KEEP_TIMINGS) 147 return false; 148 149 return true; 150 } 151 152 /* BBT functions */ 153 int nand_markbad_bbt(struct nand_chip *chip, loff_t offs); 154 int nand_isreserved_bbt(struct nand_chip *chip, loff_t offs); 155 int nand_isbad_bbt(struct nand_chip *chip, loff_t offs, int allowbbt); 156 157 /* Legacy */ 158 void nand_legacy_set_defaults(struct nand_chip *chip); 159 void nand_legacy_adjust_cmdfunc(struct nand_chip *chip); 160 int nand_legacy_check_hooks(struct nand_chip *chip); 161 162 /* ONFI functions */ 163 u16 onfi_crc16(u16 crc, u8 const *p, size_t len); 164 int nand_onfi_detect(struct nand_chip *chip); 165 166 /* JEDEC functions */ 167 int nand_jedec_detect(struct nand_chip *chip); 168 169 #endif /* __LINUX_RAWNAND_INTERNALS */ 170