Lines Matching refs:mtd
17 static struct mtd_info *mtd; variable
20 static void mxs_nand_command(struct mtd_info *mtd, unsigned int command, in mxs_nand_command() argument
23 register struct nand_chip *chip = mtd_to_nand(mtd); in mxs_nand_command()
27 chip->cmd_ctrl(mtd, command, NAND_CLE); in mxs_nand_command()
31 chip->cmd_ctrl(mtd, column, NAND_ALE); in mxs_nand_command()
32 chip->cmd_ctrl(mtd, column >> 8, NAND_ALE); in mxs_nand_command()
35 chip->cmd_ctrl(mtd, page_addr, NAND_ALE); in mxs_nand_command()
36 chip->cmd_ctrl(mtd, page_addr >> 8, NAND_ALE); in mxs_nand_command()
39 chip->cmd_ctrl(mtd, page_addr >> 16, NAND_ALE); in mxs_nand_command()
41 chip->cmd_ctrl(mtd, NAND_CMD_NONE, 0); in mxs_nand_command()
44 chip->cmd_ctrl(mtd, NAND_CMD_READSTART, NAND_CLE); in mxs_nand_command()
45 chip->cmd_ctrl(mtd, NAND_CMD_NONE, 0); in mxs_nand_command()
48 chip->cmd_ctrl(mtd, NAND_CMD_RNDOUTSTART, in mxs_nand_command()
50 chip->cmd_ctrl(mtd, NAND_CMD_NONE, in mxs_nand_command()
59 if (chip->dev_ready(mtd)) in mxs_nand_command()
67 static int mxs_flash_full_ident(struct mtd_info *mtd) in mxs_flash_full_ident() argument
70 struct nand_chip *chip = mtd_to_nand(mtd); in mxs_flash_full_ident()
73 type = nand_get_flash_type(mtd, chip, &nand_maf_id, &nand_dev_id, NULL); in mxs_flash_full_ident()
76 chip->select_chip(mtd, -1); in mxs_flash_full_ident()
86 static int mxs_flash_onfi_ident(struct mtd_info *mtd) in mxs_flash_onfi_ident() argument
88 register struct nand_chip *chip = mtd_to_nand(mtd); in mxs_flash_onfi_ident()
95 chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1); in mxs_flash_onfi_ident()
98 chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1); in mxs_flash_onfi_ident()
101 mfg_id = chip->read_byte(mtd); in mxs_flash_onfi_ident()
102 dev_id = chip->read_byte(mtd); in mxs_flash_onfi_ident()
105 chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1); in mxs_flash_onfi_ident()
107 id_data[i] = chip->read_byte(mtd); in mxs_flash_onfi_ident()
116 chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1); in mxs_flash_onfi_ident()
117 if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' || in mxs_flash_onfi_ident()
118 chip->read_byte(mtd) != 'F' || chip->read_byte(mtd) != 'I') { in mxs_flash_onfi_ident()
123 chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1); in mxs_flash_onfi_ident()
124 chip->read_buf(mtd, (uint8_t *)p, sizeof(*p)); in mxs_flash_onfi_ident()
125 mtd->name = p->model; in mxs_flash_onfi_ident()
126 mtd->writesize = le32_to_cpu(p->byte_per_page); in mxs_flash_onfi_ident()
127 mtd->erasesize = le32_to_cpu(p->pages_per_block) * mtd->writesize; in mxs_flash_onfi_ident()
128 mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page); in mxs_flash_onfi_ident()
130 chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count; in mxs_flash_onfi_ident()
132 chip->page_shift = ffs(mtd->writesize) - 1; in mxs_flash_onfi_ident()
133 chip->phys_erase_shift = ffs(mtd->erasesize) - 1; in mxs_flash_onfi_ident()
138 debug("erasesize=%d (>>%d)\n", mtd->erasesize, chip->phys_erase_shift); in mxs_flash_onfi_ident()
139 debug("writesize=%d (>>%d)\n", mtd->writesize, chip->page_shift); in mxs_flash_onfi_ident()
140 debug("oobsize=%d\n", mtd->oobsize); in mxs_flash_onfi_ident()
148 static int mxs_flash_ident(struct mtd_info *mtd) in mxs_flash_ident() argument
152 ret = mxs_flash_full_ident(mtd); in mxs_flash_ident()
154 ret = mxs_flash_onfi_ident(mtd); in mxs_flash_ident()
159 static int mxs_read_page_ecc(struct mtd_info *mtd, void *buf, unsigned int page) in mxs_read_page_ecc() argument
161 register struct nand_chip *chip = mtd_to_nand(mtd); in mxs_read_page_ecc()
164 chip->cmdfunc(mtd, NAND_CMD_READ0, 0x0, page); in mxs_read_page_ecc()
165 ret = nand_chip.ecc.read_page(mtd, chip, buf, 1, page); in mxs_read_page_ecc()
173 static int is_badblock(struct mtd_info *mtd, loff_t offs, int allowbbt) in is_badblock() argument
175 register struct nand_chip *chip = mtd_to_nand(mtd); in is_badblock()
181 chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); in is_badblock()
182 memset(chip->oob_poi, 0, mtd->oobsize); in is_badblock()
183 chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); in is_badblock()
197 mtd = nand_to_mtd(&nand_chip); in nand_init()
204 if (mxs_flash_ident(mtd)) { in nand_init()
213 nand_chip.oob_poi = nand_chip.buffers->databuf + mtd->writesize; in nand_init()
215 mtd->size = nand_chip.chipsize; in nand_init()
216 nand_chip.scan_bbt(mtd); in nand_init()
217 mxs_nand_setup_ecc(mtd); in nand_init()
229 chip = mtd_to_nand(mtd); in nand_spl_load_image()
233 page_buf = malloc(mtd->writesize); in nand_spl_load_image()
238 page_off = offs & (mtd->writesize - 1); in nand_spl_load_image()
239 nand_page_per_block = mtd->erasesize / mtd->writesize; in nand_spl_load_image()
244 if (mxs_read_page_ecc(mtd, page_buf, page) < 0) in nand_spl_load_image()
247 if (size > (mtd->writesize - page_off)) in nand_spl_load_image()
248 sz = (mtd->writesize - page_off); in nand_spl_load_image()
254 offs += mtd->writesize; in nand_spl_load_image()
256 buf += (mtd->writesize - page_off); in nand_spl_load_image()
269 while (is_badblock(mtd, offs, 1)) { in nand_spl_load_image()
272 if (page >= mtd->size >> chip->page_shift) { in nand_spl_load_image()
285 int nand_default_bbt(struct mtd_info *mtd) in nand_default_bbt() argument