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);
31 unsigned long nand_size(void);
33 #include <linux/compat.h>
34 #include <linux/mtd/mtd.h>
35 #include <linux/mtd/nand.h>
37 int nand_mtd_to_devnum(struct mtd_info
*mtd
);
39 #ifdef CONFIG_SYS_NAND_SELF_INIT
40 void board_nand_init(void);
41 int nand_register(int devnum
, struct mtd_info
*mtd
);
43 extern int board_nand_init(struct nand_chip
*nand
);
46 extern int nand_curr_device
;
47 extern struct mtd_info
*nand_info
[];
49 static inline int nand_read(struct mtd_info
*info
, loff_t ofs
, size_t *len
,
52 return mtd_read(info
, ofs
, *len
, (size_t *)len
, buf
);
55 static inline int nand_write(struct mtd_info
*info
, loff_t ofs
, size_t *len
,
58 return mtd_write(info
, ofs
, *len
, (size_t *)len
, buf
);
61 static inline int nand_block_isbad(struct mtd_info
*info
, loff_t ofs
)
63 return mtd_block_isbad(info
, ofs
);
66 static inline int nand_erase(struct mtd_info
*info
, loff_t off
, size_t size
)
68 struct erase_info instr
;
75 return mtd_erase(info
, &instr
);
79 /*****************************************************************************
80 * declarations from nand_util.c
81 ****************************************************************************/
83 typedef struct mtd_oob_ops mtd_oob_ops_t
;
85 struct nand_erase_options
{
86 loff_t length
; /* number of bytes to erase */
87 loff_t offset
; /* first address in NAND to erase */
88 int quiet
; /* don't display progress messages */
89 int jffs2
; /* if true: format for jffs2 usage
90 * (write appropriate cleanmarker blocks) */
91 int scrub
; /* if true, really clean NAND by erasing
92 * bad blocks (UNSAFE) */
94 /* Don't include skipped bad blocks in size to be erased */
96 /* maximum size that actual may be in order to not exceed the buf */
100 typedef struct nand_erase_options nand_erase_options_t
;
102 int nand_read_skip_bad(struct mtd_info
*mtd
, loff_t offset
, size_t *length
,
103 size_t *actual
, loff_t lim
, u_char
*buffer
);
105 #define WITH_DROP_FFS (1 << 0) /* drop trailing all-0xff pages */
106 #define WITH_WR_VERIFY (1 << 1) /* verify data was written correctly */
108 int nand_write_skip_bad(struct mtd_info
*mtd
, loff_t offset
, size_t *length
,
109 size_t *actual
, loff_t lim
, u_char
*buffer
, int flags
);
110 int nand_erase_opts(struct mtd_info
*mtd
,
111 const nand_erase_options_t
*opts
);
112 int nand_torture(struct mtd_info
*mtd
, loff_t offset
);
113 int nand_verify_page_oob(struct mtd_info
*mtd
, struct mtd_oob_ops
*ops
,
115 int nand_verify(struct mtd_info
*mtd
, loff_t ofs
, size_t len
, u_char
*buf
);
117 #define NAND_LOCK_STATUS_TIGHT 0x01
118 #define NAND_LOCK_STATUS_UNLOCK 0x04
120 int nand_lock(struct mtd_info
*mtd
, int tight
);
121 int nand_unlock(struct mtd_info
*mtd
, loff_t start
, size_t length
,
123 int nand_get_lock_status(struct mtd_info
*mtd
, loff_t offset
);
125 int nand_spl_load_image(uint32_t offs
, unsigned int size
, void *dst
);
126 int nand_spl_read_block(int block
, int offset
, int len
, void *dst
);
127 void nand_deselect(void);
129 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
130 void board_nand_select_device(struct nand_chip
*nand
, int chip
);
133 __attribute__((noreturn
)) void nand_boot(void);
137 #ifdef CONFIG_ENV_OFFSET_OOB
138 #define ENV_OOB_MARKER 0x30425645 /*"EVB0" in little-endian -- offset is stored
140 #define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is
141 stored as byte number */
142 #define ENV_OFFSET_SIZE 8
143 int get_nand_env_oob(struct mtd_info
*mtd
, unsigned long *result
);
145 int spl_nand_erase_one(int block
, int page
);
147 /* platform specific init functions */
148 void sunxi_nand_init(void);