3 * 2N Telekomunikace, a.s. <www.2n.cz>
4 * Ladislav Michl <michl@2n.cz>
6 * SPDX-License-Identifier: GPL-2.0
15 * All boards using a given driver must convert to self-init
16 * at the same time, so do it here. When all drivers are
17 * converted, this will go away.
19 #ifdef CONFIG_SPL_BUILD
20 #if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_FSL_IFC)
21 #define CONFIG_SYS_NAND_SELF_INIT
24 #if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_ATMEL)\
25 || defined(CONFIG_NAND_FSL_IFC)
26 #define CONFIG_SYS_NAND_SELF_INIT
30 extern void nand_init(void);
32 #include <linux/compat.h>
33 #include <linux/mtd/mtd.h>
34 #include <linux/mtd/nand.h>
36 int nand_mtd_to_devnum(struct mtd_info *mtd);
38 #ifdef CONFIG_SYS_NAND_SELF_INIT
39 void board_nand_init(void);
40 int nand_register(int devnum, struct mtd_info *mtd);
42 extern int board_nand_init(struct nand_chip *nand);
45 extern int nand_curr_device;
46 extern struct mtd_info *nand_info[];
48 static inline int nand_read(struct mtd_info *info, loff_t ofs, size_t *len,
51 return mtd_read(info, ofs, *len, (size_t *)len, buf);
54 static inline int nand_write(struct mtd_info *info, loff_t ofs, size_t *len,
57 return mtd_write(info, ofs, *len, (size_t *)len, buf);
60 static inline int nand_block_isbad(struct mtd_info *info, loff_t ofs)
62 return mtd_block_isbad(info, ofs);
65 static inline int nand_erase(struct mtd_info *info, loff_t off, size_t size)
67 struct erase_info instr;
74 return mtd_erase(info, &instr);
78 /*****************************************************************************
79 * declarations from nand_util.c
80 ****************************************************************************/
82 typedef struct mtd_oob_ops mtd_oob_ops_t;
84 struct nand_erase_options {
85 loff_t length; /* number of bytes to erase */
86 loff_t offset; /* first address in NAND to erase */
87 int quiet; /* don't display progress messages */
88 int jffs2; /* if true: format for jffs2 usage
89 * (write appropriate cleanmarker blocks) */
90 int scrub; /* if true, really clean NAND by erasing
91 * bad blocks (UNSAFE) */
93 /* Don't include skipped bad blocks in size to be erased */
95 /* maximum size that actual may be in order to not exceed the buf */
99 typedef struct nand_erase_options nand_erase_options_t;
101 int nand_read_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
102 size_t *actual, loff_t lim, u_char *buffer);
104 #define WITH_DROP_FFS (1 << 0) /* drop trailing all-0xff pages */
105 #define WITH_WR_VERIFY (1 << 1) /* verify data was written correctly */
107 int nand_write_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
108 size_t *actual, loff_t lim, u_char *buffer, int flags);
109 int nand_erase_opts(struct mtd_info *mtd,
110 const nand_erase_options_t *opts);
111 int nand_torture(struct mtd_info *mtd, loff_t offset);
112 int nand_verify_page_oob(struct mtd_info *mtd, struct mtd_oob_ops *ops,
114 int nand_verify(struct mtd_info *mtd, loff_t ofs, size_t len, u_char *buf);
116 #define NAND_LOCK_STATUS_TIGHT 0x01
117 #define NAND_LOCK_STATUS_UNLOCK 0x04
119 int nand_lock(struct mtd_info *mtd, int tight);
120 int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length,
122 int nand_get_lock_status(struct mtd_info *mtd, loff_t offset);
124 int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst);
125 void nand_deselect(void);
127 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
128 void board_nand_select_device(struct nand_chip *nand, int chip);
131 __attribute__((noreturn)) void nand_boot(void);
135 #ifdef CONFIG_ENV_OFFSET_OOB
136 #define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored
138 #define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is
139 stored as byte number */
140 #define ENV_OFFSET_SIZE 8
141 int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result);
143 int spl_nand_erase_one(int block, int page);