1 /* SPDX-License-Identifier: GPL-2.0 */
4 * 2N Telekomunikace, a.s. <www.2n.cz>
5 * Ladislav Michl <michl@2n.cz>
14 * All boards using a given driver must convert to self-init
15 * at the same time, so do it here. When all drivers are
16 * converted, this will go away.
18 #ifdef CONFIG_SPL_BUILD
19 #if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_FSL_IFC)
20 #define CONFIG_SYS_NAND_SELF_INIT
23 #if defined(CONFIG_NAND_FSL_ELBC) || defined(CONFIG_NAND_ATMEL)\
24 || defined(CONFIG_NAND_FSL_IFC)
25 #define CONFIG_SYS_NAND_SELF_INIT
29 extern void nand_init(void);
30 unsigned long nand_size(void);
32 #include <linux/compat.h>
33 #include <linux/mtd/mtd.h>
34 #include <linux/mtd/rawnand.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
;
47 static inline int nand_read(struct mtd_info
*info
, loff_t ofs
, size_t *len
,
50 return mtd_read(info
, ofs
, *len
, (size_t *)len
, buf
);
53 static inline int nand_write(struct mtd_info
*info
, loff_t ofs
, size_t *len
,
56 return mtd_write(info
, ofs
, *len
, (size_t *)len
, buf
);
59 static inline int nand_block_isbad(struct mtd_info
*info
, loff_t ofs
)
61 return mtd_block_isbad(info
, ofs
);
64 static inline int nand_erase(struct mtd_info
*info
, loff_t off
, size_t size
)
66 struct erase_info instr
;
73 return mtd_erase(info
, &instr
);
77 /*****************************************************************************
78 * declarations from nand_util.c
79 ****************************************************************************/
81 typedef struct mtd_oob_ops mtd_oob_ops_t
;
83 struct nand_erase_options
{
84 loff_t length
; /* number of bytes to erase */
85 loff_t offset
; /* first address in NAND to erase */
86 int quiet
; /* don't display progress messages */
87 int jffs2
; /* if true: format for jffs2 usage
88 * (write appropriate cleanmarker blocks) */
89 int scrub
; /* if true, really clean NAND by erasing
90 * bad blocks (UNSAFE) */
92 /* Don't include skipped bad blocks in size to be erased */
94 /* maximum size that actual may be in order to not exceed the buf */
98 typedef struct nand_erase_options nand_erase_options_t
;
100 int nand_read_skip_bad(struct mtd_info
*mtd
, loff_t offset
, size_t *length
,
101 size_t *actual
, loff_t lim
, u_char
*buffer
);
103 #define WITH_DROP_FFS (1 << 0) /* drop trailing all-0xff pages */
104 #define WITH_WR_VERIFY (1 << 1) /* verify data was written correctly */
106 int nand_write_skip_bad(struct mtd_info
*mtd
, loff_t offset
, size_t *length
,
107 size_t *actual
, loff_t lim
, u_char
*buffer
, int flags
);
108 int nand_erase_opts(struct mtd_info
*mtd
,
109 const nand_erase_options_t
*opts
);
110 int nand_torture(struct mtd_info
*mtd
, loff_t offset
);
111 int nand_verify_page_oob(struct mtd_info
*mtd
, struct mtd_oob_ops
*ops
,
113 int nand_verify(struct mtd_info
*mtd
, loff_t ofs
, size_t len
, u_char
*buf
);
115 #define NAND_LOCK_STATUS_TIGHT 0x01
116 #define NAND_LOCK_STATUS_UNLOCK 0x04
118 int nand_lock(struct mtd_info
*mtd
, int tight
);
119 int nand_unlock(struct mtd_info
*mtd
, loff_t start
, size_t length
,
121 int nand_get_lock_status(struct mtd_info
*mtd
, loff_t offset
);
123 int nand_spl_load_image(uint32_t offs
, unsigned int size
, void *dst
);
124 int nand_spl_read_block(int block
, int offset
, int len
, 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);
133 #ifdef CONFIG_ENV_OFFSET_OOB
134 #define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored
136 #define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is
137 stored as byte number */
138 #define ENV_OFFSET_SIZE 8
139 int get_nand_env_oob(struct mtd_info
*mtd
, unsigned long *result
);
141 int spl_nand_erase_one(int block
, int page
);
143 /* platform specific init functions */
144 void sunxi_nand_init(void);
147 * get_nand_dev_by_index - Get the nand info based in index.
149 * @dev - index to the nand device.
151 * returns pointer to the nand device info structure or NULL on failure.
153 struct mtd_info
*get_nand_dev_by_index(int dev
);
155 #endif /* _NAND_H_ */