444 lines
15 KiB
C
444 lines
15 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2018 Macronix
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*
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* Author: Boris Brezillon <boris.brezillon@bootlin.com>
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*/
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#include <linux/bitfield.h>
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#include <linux/device.h>
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#include <linux/kernel.h>
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#include <linux/mtd/spinand.h>
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#define SPINAND_MFR_MACRONIX 0xC2
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#define MACRONIX_ECCSR_BF_LAST_PAGE(eccsr) FIELD_GET(GENMASK(3, 0), eccsr)
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#define MACRONIX_ECCSR_BF_ACCUMULATED_PAGES(eccsr) FIELD_GET(GENMASK(7, 4), eccsr)
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#define MACRONIX_CFG_CONT_READ BIT(2)
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#define STATUS_ECC_HAS_BITFLIPS_THRESHOLD (3 << 4)
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/* Bitflip theshold configuration register */
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#define REG_CFG_BFT 0x10
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#define CFG_BFT(x) FIELD_PREP(GENMASK(7, 4), (x))
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struct macronix_priv {
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bool cont_read;
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};
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static SPINAND_OP_VARIANTS(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(write_cache_variants,
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SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
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SPINAND_PROG_LOAD(false, 0, NULL, 0));
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static SPINAND_OP_VARIANTS(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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static int mx35lfxge4ab_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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return -ERANGE;
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}
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static int mx35lfxge4ab_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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if (section)
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return -ERANGE;
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region->offset = 2;
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region->length = mtd->oobsize - 2;
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return 0;
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}
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static const struct mtd_ooblayout_ops mx35lfxge4ab_ooblayout = {
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.ecc = mx35lfxge4ab_ooblayout_ecc,
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.free = mx35lfxge4ab_ooblayout_free,
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};
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static int macronix_get_eccsr(struct spinand_device *spinand, u8 *eccsr)
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{
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struct macronix_priv *priv = spinand->priv;
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struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(0x7c, 1),
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SPI_MEM_OP_NO_ADDR,
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SPI_MEM_OP_DUMMY(1, 1),
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SPI_MEM_OP_DATA_IN(1, eccsr, 1));
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int ret = spi_mem_exec_op(spinand->spimem, &op);
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if (ret)
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return ret;
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/*
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* ECCSR exposes the number of bitflips for the last read page in bits [3:0].
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* Continuous read compatible chips also expose the maximum number of
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* bitflips for the whole (continuous) read operation in bits [7:4].
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*/
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if (!priv->cont_read)
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*eccsr = MACRONIX_ECCSR_BF_LAST_PAGE(*eccsr);
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else
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*eccsr = MACRONIX_ECCSR_BF_ACCUMULATED_PAGES(*eccsr);
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return 0;
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}
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static int macronix_ecc_get_status(struct spinand_device *spinand,
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u8 status)
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{
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struct nand_device *nand = spinand_to_nand(spinand);
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u8 eccsr;
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switch (status & STATUS_ECC_MASK) {
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case STATUS_ECC_NO_BITFLIPS:
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return 0;
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case STATUS_ECC_UNCOR_ERROR:
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return -EBADMSG;
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case STATUS_ECC_HAS_BITFLIPS:
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/*
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* Let's try to retrieve the real maximum number of bitflips
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* in order to avoid forcing the wear-leveling layer to move
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* data around if it's not necessary.
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*/
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if (macronix_get_eccsr(spinand, spinand->scratchbuf))
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return nanddev_get_ecc_conf(nand)->strength;
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eccsr = *spinand->scratchbuf;
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if (WARN_ON(eccsr > nanddev_get_ecc_conf(nand)->strength || !eccsr))
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return nanddev_get_ecc_conf(nand)->strength;
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return eccsr;
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default:
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break;
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}
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return -EINVAL;
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}
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static int macronix_set_cont_read(struct spinand_device *spinand, bool enable)
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{
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struct macronix_priv *priv = spinand->priv;
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int ret;
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ret = spinand_upd_cfg(spinand, MACRONIX_CFG_CONT_READ,
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enable ? MACRONIX_CFG_CONT_READ : 0);
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if (ret)
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return ret;
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priv->cont_read = enable;
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return 0;
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}
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static const struct spinand_info macronix_spinand_table[] = {
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SPINAND_INFO("MX35LF1GE4AB",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x12),
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NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
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NAND_ECCREQ(4, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
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macronix_ecc_get_status)),
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SPINAND_INFO("MX35LF2GE4AB",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x22),
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NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 1, 1),
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NAND_ECCREQ(4, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT |
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SPINAND_HAS_PROG_PLANE_SELECT_BIT |
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SPINAND_HAS_READ_PLANE_SELECT_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
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SPINAND_INFO("MX35LF2GE4AD",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x26, 0x03),
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NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
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macronix_ecc_get_status),
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SPINAND_CONT_READ(macronix_set_cont_read)),
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SPINAND_INFO("MX35LF4GE4AD",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x37, 0x03),
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NAND_MEMORG(1, 4096, 128, 64, 2048, 40, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
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macronix_ecc_get_status),
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SPINAND_CONT_READ(macronix_set_cont_read)),
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SPINAND_INFO("MX35LF1G24AD",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x14, 0x03),
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NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
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SPINAND_INFO("MX35LF2G24AD",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x24, 0x03),
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NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT |
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SPINAND_HAS_PROG_PLANE_SELECT_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
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SPINAND_INFO("MX35LF2G24AD-Z4I8",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x64, 0x03),
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NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
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SPINAND_INFO("MX35LF4G24AD",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x35, 0x03),
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NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 2, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT |
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SPINAND_HAS_PROG_PLANE_SELECT_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
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SPINAND_INFO("MX35LF4G24AD-Z4I8",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x75, 0x03),
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NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
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SPINAND_INFO("MX31LF1GE4BC",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x1e),
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NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
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macronix_ecc_get_status)),
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SPINAND_INFO("MX31UF1GE4BC",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x9e),
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NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
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macronix_ecc_get_status)),
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SPINAND_INFO("MX35LF2G14AC",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x20),
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NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 1, 1),
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NAND_ECCREQ(4, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT |
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SPINAND_HAS_PROG_PLANE_SELECT_BIT |
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SPINAND_HAS_READ_PLANE_SELECT_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
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macronix_ecc_get_status)),
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SPINAND_INFO("MX35UF4G24AD",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xb5, 0x03),
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NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 2, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT |
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SPINAND_HAS_PROG_PLANE_SELECT_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
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macronix_ecc_get_status)),
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SPINAND_INFO("MX35UF4G24AD-Z4I8",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xf5, 0x03),
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NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
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macronix_ecc_get_status)),
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SPINAND_INFO("MX35UF4GE4AD",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xb7, 0x03),
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NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
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macronix_ecc_get_status),
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SPINAND_CONT_READ(macronix_set_cont_read)),
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SPINAND_INFO("MX35UF2G14AC",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa0),
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NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 1, 1),
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NAND_ECCREQ(4, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT |
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SPINAND_HAS_PROG_PLANE_SELECT_BIT |
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|
SPINAND_HAS_READ_PLANE_SELECT_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status)),
|
||
|
|
SPINAND_INFO("MX35UF2G24AD",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa4, 0x03),
|
||
|
|
NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 1, 1),
|
||
|
|
NAND_ECCREQ(8, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT |
|
||
|
|
SPINAND_HAS_PROG_PLANE_SELECT_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status)),
|
||
|
|
SPINAND_INFO("MX35UF2G24AD-Z4I8",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xe4, 0x03),
|
||
|
|
NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(8, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status)),
|
||
|
|
SPINAND_INFO("MX35UF2GE4AD",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa6, 0x03),
|
||
|
|
NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(8, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status),
|
||
|
|
SPINAND_CONT_READ(macronix_set_cont_read)),
|
||
|
|
SPINAND_INFO("MX35UF2GE4AC",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa2, 0x01),
|
||
|
|
NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(4, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status),
|
||
|
|
SPINAND_CONT_READ(macronix_set_cont_read)),
|
||
|
|
SPINAND_INFO("MX35UF1G14AC",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x90),
|
||
|
|
NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(4, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status)),
|
||
|
|
SPINAND_INFO("MX35UF1G24AD",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x94, 0x03),
|
||
|
|
NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(8, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status)),
|
||
|
|
SPINAND_INFO("MX35UF1GE4AD",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x96, 0x03),
|
||
|
|
NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(8, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status),
|
||
|
|
SPINAND_CONT_READ(macronix_set_cont_read)),
|
||
|
|
SPINAND_INFO("MX35UF1GE4AC",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x92, 0x01),
|
||
|
|
NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(4, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status),
|
||
|
|
SPINAND_CONT_READ(macronix_set_cont_read)),
|
||
|
|
SPINAND_INFO("MX31LF2GE4BC",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x2e),
|
||
|
|
NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(8, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status)),
|
||
|
|
SPINAND_INFO("MX3UF2GE4BC",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xae),
|
||
|
|
NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(8, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
|
||
|
|
macronix_ecc_get_status)),
|
||
|
|
};
|
||
|
|
|
||
|
|
static int macronix_spinand_init(struct spinand_device *spinand)
|
||
|
|
{
|
||
|
|
struct macronix_priv *priv;
|
||
|
|
|
||
|
|
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
||
|
|
if (!priv)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
spinand->priv = priv;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void macronix_spinand_cleanup(struct spinand_device *spinand)
|
||
|
|
{
|
||
|
|
kfree(spinand->priv);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct spinand_manufacturer_ops macronix_spinand_manuf_ops = {
|
||
|
|
.init = macronix_spinand_init,
|
||
|
|
.cleanup = macronix_spinand_cleanup,
|
||
|
|
};
|
||
|
|
|
||
|
|
const struct spinand_manufacturer macronix_spinand_manufacturer = {
|
||
|
|
.id = SPINAND_MFR_MACRONIX,
|
||
|
|
.name = "Macronix",
|
||
|
|
.chips = macronix_spinand_table,
|
||
|
|
.nchips = ARRAY_SIZE(macronix_spinand_table),
|
||
|
|
.ops = ¯onix_spinand_manuf_ops,
|
||
|
|
};
|