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mtd: spinand: micron: Add support for MT29F2G01AAAED
The MT29F2G01AAAED is a single die, 2Gb Micron SPI NAND Flash with 4-bit ECC Signed-off-by: Thirumalesha Narasimhappa <nthirumalesha7@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20201108113735.2533-3-nthirumalesha7@gmail.com
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@ -44,6 +44,19 @@ static SPINAND_OP_VARIANTS(x4_update_cache_variants,
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SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
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SPINAND_PROG_LOAD(false, 0, NULL, 0));
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/* Micron MT29F2G01AAAED Device */
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static SPINAND_OP_VARIANTS(x4_read_cache_variants,
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SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
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static SPINAND_OP_VARIANTS(x1_write_cache_variants,
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SPINAND_PROG_LOAD(true, 0, NULL, 0));
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static SPINAND_OP_VARIANTS(x1_update_cache_variants,
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SPINAND_PROG_LOAD(false, 0, NULL, 0));
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static int micron_8_ooblayout_ecc(struct mtd_info *mtd, int section,
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struct mtd_oob_region *region)
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{
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@ -74,6 +87,47 @@ static const struct mtd_ooblayout_ops micron_8_ooblayout = {
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.free = micron_8_ooblayout_free,
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};
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static int micron_4_ooblayout_ecc(struct mtd_info *mtd, int section,
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struct mtd_oob_region *region)
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{
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struct spinand_device *spinand = mtd_to_spinand(mtd);
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if (section >= spinand->base.memorg.pagesize /
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mtd->ecc_step_size)
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return -ERANGE;
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region->offset = (section * 16) + 8;
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region->length = 8;
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return 0;
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}
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static int micron_4_ooblayout_free(struct mtd_info *mtd, int section,
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struct mtd_oob_region *region)
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{
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struct spinand_device *spinand = mtd_to_spinand(mtd);
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if (section >= spinand->base.memorg.pagesize /
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mtd->ecc_step_size)
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return -ERANGE;
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if (section) {
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region->offset = 16 * section;
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region->length = 8;
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} else {
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/* section 0 has two bytes reserved for the BBM */
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region->offset = 2;
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region->length = 6;
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}
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return 0;
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}
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static const struct mtd_ooblayout_ops micron_4_ooblayout = {
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.ecc = micron_4_ooblayout_ecc,
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.free = micron_4_ooblayout_free,
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};
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static int micron_select_target(struct spinand_device *spinand,
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unsigned int target)
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{
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@ -217,6 +271,16 @@ static const struct spinand_info micron_spinand_table[] = {
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SPINAND_ECCINFO(µn_8_ooblayout,
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micron_8_ecc_get_status),
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SPINAND_SELECT_TARGET(micron_select_target)),
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/* M69A 2Gb 3.3V */
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SPINAND_INFO("MT29F2G01AAAED",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x9F),
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NAND_MEMORG(1, 2048, 64, 64, 2048, 80, 2, 1, 1),
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NAND_ECCREQ(4, 512),
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SPINAND_INFO_OP_VARIANTS(&x4_read_cache_variants,
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&x1_write_cache_variants,
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&x1_update_cache_variants),
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0,
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SPINAND_ECCINFO(µn_4_ooblayout, NULL)),
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};
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static int micron_spinand_init(struct spinand_device *spinand)
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