From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- drivers/mtd/nand/spi/ato.c | 86 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 drivers/mtd/nand/spi/ato.c (limited to 'drivers/mtd/nand/spi/ato.c') diff --git a/drivers/mtd/nand/spi/ato.c b/drivers/mtd/nand/spi/ato.c new file mode 100644 index 0000000000..82b377c068 --- /dev/null +++ b/drivers/mtd/nand/spi/ato.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2022 Aidan MacDonald + * + * Author: Aidan MacDonald + */ + +#include +#include +#include + + +#define SPINAND_MFR_ATO 0x9b + + +static SPINAND_OP_VARIANTS(read_cache_variants, + SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); + +static SPINAND_OP_VARIANTS(write_cache_variants, + SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), + SPINAND_PROG_LOAD(true, 0, NULL, 0)); + +static SPINAND_OP_VARIANTS(update_cache_variants, + SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), + SPINAND_PROG_LOAD(false, 0, NULL, 0)); + + +static int ato25d1ga_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section > 3) + return -ERANGE; + + region->offset = (16 * section) + 8; + region->length = 8; + return 0; +} + +static int ato25d1ga_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section > 3) + return -ERANGE; + + if (section) { + region->offset = (16 * section); + region->length = 8; + } else { + /* first byte of section 0 is reserved for the BBM */ + region->offset = 1; + region->length = 7; + } + + return 0; +} + +static const struct mtd_ooblayout_ops ato25d1ga_ooblayout = { + .ecc = ato25d1ga_ooblayout_ecc, + .free = ato25d1ga_ooblayout_free, +}; + + +static const struct spinand_info ato_spinand_table[] = { + SPINAND_INFO("ATO25D1GA", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x12), + NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(1, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&ato25d1ga_ooblayout, NULL)), +}; + +static const struct spinand_manufacturer_ops ato_spinand_manuf_ops = { +}; + +const struct spinand_manufacturer ato_spinand_manufacturer = { + .id = SPINAND_MFR_ATO, + .name = "ATO", + .chips = ato_spinand_table, + .nchips = ARRAY_SIZE(ato_spinand_table), + .ops = &ato_spinand_manuf_ops, +}; -- cgit v1.2.3