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333d43f6a3
NAND devices are destroyed in between unit tests. Provide a function to reinitialize the subsystem at the beginning of each test. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* (C) Copyright 2005
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* 2N Telekomunikace, a.s. <www.2n.cz>
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* Ladislav Michl <michl@2n.cz>
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*/
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#ifndef _NAND_H_
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#define _NAND_H_
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#include <config.h>
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extern void nand_init(void);
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void nand_reinit(void);
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unsigned long nand_size(void);
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unsigned int nand_page_size(void);
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#include <linux/compat.h>
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#include <linux/mtd/mtd.h>
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int nand_mtd_to_devnum(struct mtd_info *mtd);
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#if CONFIG_IS_ENABLED(SYS_NAND_SELF_INIT)
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void board_nand_init(void);
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int nand_register(int devnum, struct mtd_info *mtd);
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void nand_unregister(struct mtd_info *mtd);
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#else
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struct nand_chip;
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extern int board_nand_init(struct nand_chip *nand);
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#endif
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extern int nand_curr_device;
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static inline int nand_read(struct mtd_info *info, loff_t ofs, size_t *len,
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u_char *buf)
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{
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return mtd_read(info, ofs, *len, (size_t *)len, buf);
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}
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static inline int nand_write(struct mtd_info *info, loff_t ofs, size_t *len,
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u_char *buf)
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{
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return mtd_write(info, ofs, *len, (size_t *)len, buf);
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}
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static inline int nand_block_isbad(struct mtd_info *info, loff_t ofs)
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{
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return mtd_block_isbad(info, ofs);
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}
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static inline int nand_erase(struct mtd_info *info, loff_t off, size_t size)
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{
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struct erase_info instr;
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instr.mtd = info;
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instr.addr = off;
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instr.len = size;
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return mtd_erase(info, &instr);
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}
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/*****************************************************************************
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* declarations from nand_util.c
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****************************************************************************/
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typedef struct mtd_oob_ops mtd_oob_ops_t;
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struct nand_erase_options {
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loff_t length; /* number of bytes to erase */
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loff_t offset; /* first address in NAND to erase */
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int quiet; /* don't display progress messages */
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int jffs2; /* if true: format for jffs2 usage
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* (write appropriate cleanmarker blocks) */
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int scrub; /* if true, really clean NAND by erasing
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* bad blocks (UNSAFE) */
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/* Don't include skipped bad blocks in size to be erased */
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int spread;
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/* maximum size that actual may be in order to not exceed the buf */
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loff_t lim;
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};
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typedef struct nand_erase_options nand_erase_options_t;
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int nand_read_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
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size_t *actual, loff_t lim, u_char *buffer);
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#define WITH_DROP_FFS (1 << 0) /* drop trailing all-0xff pages */
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#define WITH_WR_VERIFY (1 << 1) /* verify data was written correctly */
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int nand_write_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
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size_t *actual, loff_t lim, u_char *buffer, int flags);
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int nand_erase_opts(struct mtd_info *mtd,
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const nand_erase_options_t *opts);
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int nand_torture(struct mtd_info *mtd, loff_t offset);
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int nand_verify_page_oob(struct mtd_info *mtd, struct mtd_oob_ops *ops,
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loff_t ofs);
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int nand_verify(struct mtd_info *mtd, loff_t ofs, size_t len, u_char *buf);
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#define NAND_LOCK_STATUS_TIGHT 0x01
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#define NAND_LOCK_STATUS_UNLOCK 0x04
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int nand_lock(struct mtd_info *mtd, int tight);
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int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length,
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int allexcept);
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int nand_get_lock_status(struct mtd_info *mtd, loff_t offset);
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u32 nand_spl_adjust_offset(u32 sector, u32 offs);
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int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst);
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int nand_spl_read_block(int block, int offset, int len, void *dst);
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void nand_deselect(void);
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#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
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void board_nand_select_device(struct nand_chip *nand, int chip);
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#endif
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__attribute__((noreturn)) void nand_boot(void);
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#ifdef CONFIG_ENV_OFFSET_OOB
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#define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored
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as block number*/
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#define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is
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stored as byte number */
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#define ENV_OFFSET_SIZE 8
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int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result);
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#endif
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int spl_nand_erase_one(int block, int page);
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/* platform specific init functions */
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void sunxi_nand_init(void);
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/*
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* get_nand_dev_by_index - Get the nand info based in index.
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*
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* @dev - index to the nand device.
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*
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* returns pointer to the nand device info structure or NULL on failure.
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*/
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struct mtd_info *get_nand_dev_by_index(int dev);
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#endif /* _NAND_H_ */
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