150 lines
4.8 KiB
C
150 lines
4.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2018 - Bootlin
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*
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* Author: Boris Brezillon <boris.brezillon@bootlin.com>
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*
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* Header containing internal definitions to be used only by core files.
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* NAND controller drivers should not include this file.
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*/
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#ifndef __LINUX_RAWNAND_INTERNALS
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#define __LINUX_RAWNAND_INTERNALS
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#include <linux/mtd/rawnand.h>
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/*
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* NAND Flash Manufacturer ID Codes
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*/
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#define NAND_MFR_AMD 0x01
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#define NAND_MFR_ATO 0x9b
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#define NAND_MFR_EON 0x92
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#define NAND_MFR_ESMT 0xc8
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#define NAND_MFR_FUJITSU 0x04
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#define NAND_MFR_HYNIX 0xad
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#define NAND_MFR_INTEL 0x89
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#define NAND_MFR_MACRONIX 0xc2
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#define NAND_MFR_MICRON 0x2c
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#define NAND_MFR_NATIONAL 0x8f
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#define NAND_MFR_RENESAS 0x07
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#define NAND_MFR_SAMSUNG 0xec
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#define NAND_MFR_SANDISK 0x45
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#define NAND_MFR_STMICRO 0x20
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#define NAND_MFR_TOSHIBA 0x98
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#define NAND_MFR_WINBOND 0xef
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/**
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* struct nand_manufacturer_ops - NAND Manufacturer operations
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* @detect: detect the NAND memory organization and capabilities
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* @init: initialize all vendor specific fields (like the ->read_retry()
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* implementation) if any.
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* @cleanup: the ->init() function may have allocated resources, ->cleanup()
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* is here to let vendor specific code release those resources.
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* @fixup_onfi_param_page: apply vendor specific fixups to the ONFI parameter
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* page. This is called after the checksum is verified.
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*/
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struct nand_manufacturer_ops {
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void (*detect)(struct nand_chip *chip);
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int (*init)(struct nand_chip *chip);
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void (*cleanup)(struct nand_chip *chip);
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void (*fixup_onfi_param_page)(struct nand_chip *chip,
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struct nand_onfi_params *p);
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};
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/**
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* struct nand_manufacturer - NAND Flash Manufacturer structure
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* @name: Manufacturer name
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* @id: manufacturer ID code of device.
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* @ops: manufacturer operations
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*/
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struct nand_manufacturer {
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int id;
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char *name;
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const struct nand_manufacturer_ops *ops;
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};
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extern struct nand_flash_dev nand_flash_ids[];
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extern const struct nand_manufacturer_ops amd_nand_manuf_ops;
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extern const struct nand_manufacturer_ops esmt_nand_manuf_ops;
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extern const struct nand_manufacturer_ops hynix_nand_manuf_ops;
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extern const struct nand_manufacturer_ops macronix_nand_manuf_ops;
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extern const struct nand_manufacturer_ops micron_nand_manuf_ops;
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extern const struct nand_manufacturer_ops samsung_nand_manuf_ops;
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extern const struct nand_manufacturer_ops toshiba_nand_manuf_ops;
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/* Core functions */
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const struct nand_manufacturer *nand_get_manufacturer(u8 id);
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int nand_bbm_get_next_page(struct nand_chip *chip, int page);
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int nand_markbad_bbm(struct nand_chip *chip, loff_t ofs);
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int nand_erase_nand(struct nand_chip *chip, struct erase_info *instr,
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int allowbbt);
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int onfi_fill_data_interface(struct nand_chip *chip,
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enum nand_data_interface_type type,
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int timing_mode);
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int nand_get_features(struct nand_chip *chip, int addr, u8 *subfeature_param);
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int nand_set_features(struct nand_chip *chip, int addr, u8 *subfeature_param);
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int nand_read_page_raw_notsupp(struct nand_chip *chip, u8 *buf,
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int oob_required, int page);
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int nand_write_page_raw_notsupp(struct nand_chip *chip, const u8 *buf,
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int oob_required, int page);
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int nand_exit_status_op(struct nand_chip *chip);
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int nand_read_param_page_op(struct nand_chip *chip, u8 page, void *buf,
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unsigned int len);
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void nand_decode_ext_id(struct nand_chip *chip);
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void panic_nand_wait(struct nand_chip *chip, unsigned long timeo);
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void sanitize_string(uint8_t *s, size_t len);
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static inline bool nand_has_exec_op(struct nand_chip *chip)
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{
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if (!chip->controller || !chip->controller->ops ||
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!chip->controller->ops->exec_op)
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return false;
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return true;
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}
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static inline int nand_exec_op(struct nand_chip *chip,
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const struct nand_operation *op)
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{
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if (!nand_has_exec_op(chip))
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return -ENOTSUPP;
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if (WARN_ON(op->cs >= nanddev_ntargets(&chip->base)))
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return -EINVAL;
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return chip->controller->ops->exec_op(chip, op, false);
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}
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static inline bool nand_has_setup_data_iface(struct nand_chip *chip)
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{
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if (!chip->controller || !chip->controller->ops ||
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!chip->controller->ops->setup_data_interface)
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return false;
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if (chip->options & NAND_KEEP_TIMINGS)
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return false;
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return true;
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}
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/* BBT functions */
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int nand_markbad_bbt(struct nand_chip *chip, loff_t offs);
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int nand_isreserved_bbt(struct nand_chip *chip, loff_t offs);
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int nand_isbad_bbt(struct nand_chip *chip, loff_t offs, int allowbbt);
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/* Legacy */
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void nand_legacy_set_defaults(struct nand_chip *chip);
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void nand_legacy_adjust_cmdfunc(struct nand_chip *chip);
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int nand_legacy_check_hooks(struct nand_chip *chip);
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/* ONFI functions */
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u16 onfi_crc16(u16 crc, u8 const *p, size_t len);
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int nand_onfi_detect(struct nand_chip *chip);
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/* JEDEC functions */
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int nand_jedec_detect(struct nand_chip *chip);
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#endif /* __LINUX_RAWNAND_INTERNALS */
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