Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2005 |
| 3 | * 2N Telekomunikace, a.s. <www.2n.cz> |
| 4 | * Ladislav Michl <michl@2n.cz> |
| 5 | * |
| 6 | * See file CREDITS for list of people who contributed to this |
| 7 | * project. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * version 2 as published by the Free Software Foundation. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #ifndef _NAND_H_ |
| 25 | #define _NAND_H_ |
| 26 | |
Scott Wood | 8238dd4 | 2008-07-09 17:47:52 -0500 | [diff] [blame] | 27 | extern void nand_init(void); |
| 28 | |
| 29 | #ifndef CFG_NAND_LEGACY |
Wolfgang Denk | 7b9bc3a | 2005-09-14 23:53:32 +0200 | [diff] [blame] | 30 | #include <linux/mtd/compat.h> |
Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 31 | #include <linux/mtd/mtd.h> |
| 32 | #include <linux/mtd/nand.h> |
| 33 | |
| 34 | typedef struct mtd_info nand_info_t; |
| 35 | |
| 36 | extern int nand_curr_device; |
| 37 | extern nand_info_t nand_info[]; |
| 38 | |
Wolfgang Denk | 9a11ccd | 2008-04-28 12:08:18 +0200 | [diff] [blame] | 39 | static inline int nand_read(nand_info_t *info, off_t ofs, size_t *len, u_char *buf) |
Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 40 | { |
Bartlomiej Sieka | 6eed2ab | 2006-02-24 09:37:22 +0100 | [diff] [blame] | 41 | return info->read(info, ofs, *len, (size_t *)len, buf); |
Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 42 | } |
| 43 | |
Wolfgang Denk | 9a11ccd | 2008-04-28 12:08:18 +0200 | [diff] [blame] | 44 | static inline int nand_write(nand_info_t *info, off_t ofs, size_t *len, u_char *buf) |
Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 45 | { |
Bartlomiej Sieka | 6eed2ab | 2006-02-24 09:37:22 +0100 | [diff] [blame] | 46 | return info->write(info, ofs, *len, (size_t *)len, buf); |
Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 47 | } |
| 48 | |
Wolfgang Denk | 9a11ccd | 2008-04-28 12:08:18 +0200 | [diff] [blame] | 49 | static inline int nand_block_isbad(nand_info_t *info, off_t ofs) |
Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 50 | { |
| 51 | return info->block_isbad(info, ofs); |
| 52 | } |
| 53 | |
Wolfgang Denk | 9a11ccd | 2008-04-28 12:08:18 +0200 | [diff] [blame] | 54 | static inline int nand_erase(nand_info_t *info, off_t off, size_t size) |
Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 55 | { |
Wolfgang Denk | 9a08dd1 | 2005-11-02 14:29:12 +0100 | [diff] [blame] | 56 | struct erase_info instr; |
| 57 | |
| 58 | instr.mtd = info; |
| 59 | instr.addr = off; |
| 60 | instr.len = size; |
| 61 | instr.callback = 0; |
| 62 | |
| 63 | return info->erase(info, &instr); |
Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 64 | } |
| 65 | |
Stefan Roese | d351b2b | 2006-10-10 12:36:02 +0200 | [diff] [blame] | 66 | |
| 67 | /***************************************************************************** |
| 68 | * declarations from nand_util.c |
| 69 | ****************************************************************************/ |
| 70 | |
| 71 | struct nand_write_options { |
| 72 | u_char *buffer; /* memory block containing image to write */ |
| 73 | ulong length; /* number of bytes to write */ |
| 74 | ulong offset; /* start address in NAND */ |
| 75 | int quiet; /* don't display progress messages */ |
| 76 | int autoplace; /* if true use auto oob layout */ |
| 77 | int forcejffs2; /* force jffs2 oob layout */ |
| 78 | int forceyaffs; /* force yaffs oob layout */ |
| 79 | int noecc; /* write without ecc */ |
| 80 | int writeoob; /* image contains oob data */ |
| 81 | int pad; /* pad to page size */ |
| 82 | int blockalign; /* 1|2|4 set multiple of eraseblocks |
| 83 | * to align to */ |
| 84 | }; |
| 85 | |
| 86 | typedef struct nand_write_options nand_write_options_t; |
| 87 | |
| 88 | struct nand_read_options { |
| 89 | u_char *buffer; /* memory block in which read image is written*/ |
| 90 | ulong length; /* number of bytes to read */ |
| 91 | ulong offset; /* start address in NAND */ |
| 92 | int quiet; /* don't display progress messages */ |
| 93 | int readoob; /* put oob data in image */ |
| 94 | }; |
| 95 | |
| 96 | typedef struct nand_read_options nand_read_options_t; |
| 97 | |
| 98 | struct nand_erase_options { |
| 99 | ulong length; /* number of bytes to erase */ |
| 100 | ulong offset; /* first address in NAND to erase */ |
| 101 | int quiet; /* don't display progress messages */ |
| 102 | int jffs2; /* if true: format for jffs2 usage |
| 103 | * (write appropriate cleanmarker blocks) */ |
| 104 | int scrub; /* if true, really clean NAND by erasing |
| 105 | * bad blocks (UNSAFE) */ |
| 106 | }; |
| 107 | |
| 108 | typedef struct nand_erase_options nand_erase_options_t; |
| 109 | |
| 110 | int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts); |
| 111 | |
| 112 | int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts); |
| 113 | int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts); |
| 114 | |
| 115 | #define NAND_LOCK_STATUS_TIGHT 0x01 |
| 116 | #define NAND_LOCK_STATUS_LOCK 0x02 |
| 117 | #define NAND_LOCK_STATUS_UNLOCK 0x04 |
| 118 | |
| 119 | int nand_lock( nand_info_t *meminfo, int tight ); |
| 120 | int nand_unlock( nand_info_t *meminfo, ulong start, ulong length ); |
| 121 | int nand_get_lock_status(nand_info_t *meminfo, ulong offset); |
| 122 | |
Stefan Roese | 3cdd3fd | 2006-10-20 14:28:52 +0200 | [diff] [blame] | 123 | #ifdef CFG_NAND_SELECT_DEVICE |
| 124 | void board_nand_select_device(struct nand_chip *nand, int chip); |
| 125 | #endif |
| 126 | |
Scott Wood | 8238dd4 | 2008-07-09 17:47:52 -0500 | [diff] [blame] | 127 | #endif /* !CFG_NAND_LEGACY */ |
Wolfgang Denk | 2f9b7e4 | 2005-08-17 12:55:25 +0200 | [diff] [blame] | 128 | #endif |