mtd: spinand: Support xtx devices
Support XT26G01A, XT26G02A, XT26G04A, XT26G01B, XT26G02B Change-Id: I447d83e5c5da8f6ba8515aab77a8039fe9cb2cc4 Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin
Jianhong Chen
parent
7d33ddceab
commit
fc656fc366
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@ -1,4 +1,4 @@
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# SPDX-License-Identifier: GPL-2.0
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spinand-objs := core.o gigadevice.o macronix.o micron.o toshiba.o winbond.o dosilicon.o esmt.o
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spinand-objs := core.o gigadevice.o macronix.o micron.o toshiba.o winbond.o dosilicon.o esmt.o xtx.o
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obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
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@ -826,6 +826,7 @@ static const struct spinand_manufacturer *spinand_manufacturers[] = {
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&winbond_spinand_manufacturer,
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&dosilicon_spinand_manufacturer,
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&esmt_spinand_manufacturer,
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&xtx_spinand_manufacturer,
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};
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static int spinand_manufacturer_detect(struct spinand_device *spinand)
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@ -0,0 +1,235 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2020 Rockchip Electronics Co., Ltd
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*
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* Authors:
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* Dingqiang Lin <jon.lin@rock-chips.com>
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*/
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#ifndef __UBOOT__
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#include <linux/device.h>
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#include <linux/kernel.h>
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#endif
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#include <linux/mtd/spinand.h>
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#define SPINAND_MFR_XTX 0x0B
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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(true, 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 xt26g0xa_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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if (section)
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return -ERANGE;
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region->offset = 48;
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region->length = 16;
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return 0;
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}
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static int xt26g0xa_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 - 18;
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return 0;
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}
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static const struct mtd_ooblayout_ops xt26g0xa_ooblayout = {
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.ecc = xt26g0xa_ooblayout_ecc,
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.rfree = xt26g0xa_ooblayout_free,
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};
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static int xt26g01b_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 xt26g01b_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 xt26g01b_ooblayout = {
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.ecc = xt26g01b_ooblayout_ecc,
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.rfree = xt26g01b_ooblayout_free,
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};
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static int xt26g02b_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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if (section > 3)
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return -ERANGE;
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region->offset = (16 * section) + 8;
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region->length = 8;
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return 0;
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}
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static int xt26g02b_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 > 3)
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return -ERANGE;
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region->offset = (16 * section) + 2;
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region->length = 6;
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return 0;
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}
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static const struct mtd_ooblayout_ops xt26g02b_ooblayout = {
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.ecc = xt26g02b_ooblayout_ecc,
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.rfree = xt26g02b_ooblayout_free,
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};
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/*
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* ecc bits: 0xC0[2,5]
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* [0x0000], No bit errors were detected;
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* [0x0001, 0x0111], Bit errors were detected and corrected. Not
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* reach Flipping Bits;
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* [0x1000], Multiple bit errors were detected and
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* not corrected.
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* [0x1100], Bit error count equals the bit flip
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* detectionthreshold
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* else, reserved
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*/
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static int xt26g0xa_ecc_get_status(struct spinand_device *spinand,
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u8 status)
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{
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u8 eccsr = (status & GENMASK(5, 2)) >> 2;
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if (eccsr <= 7)
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return eccsr;
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else if (eccsr == 12)
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return 8;
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else
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return -EBADMSG;
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}
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/*
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* ecc bits: 0xC0[4,6]
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* [0x0], No bit errors were detected;
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* [0x001, 0x011], Bit errors were detected and corrected. Not
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* reach Flipping Bits;
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* [0x100], Bit error count equals the bit flip
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* detectionthreshold
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* [0x101, 0x110], Reserved;
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* [0x111], Multiple bit errors were detected and
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* not corrected.
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*/
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static int xt26g02b_ecc_get_status(struct spinand_device *spinand,
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u8 status)
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{
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u8 eccsr = (status & GENMASK(6, 4)) >> 4;
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if (eccsr <= 4)
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return eccsr;
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else
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return -EBADMSG;
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}
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static const struct spinand_info xtx_spinand_table[] = {
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SPINAND_INFO("XT26G01A", 0xE1,
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NAND_MEMORG(1, 2048, 64, 64, 1024, 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(&xt26g0xa_ooblayout,
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xt26g0xa_ecc_get_status)),
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SPINAND_INFO("XT26G02A", 0xE2,
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NAND_MEMORG(1, 2048, 64, 64, 2048, 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(&xt26g0xa_ooblayout,
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xt26g0xa_ecc_get_status)),
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SPINAND_INFO("XT26G04A", 0xE3,
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NAND_MEMORG(1, 2048, 64, 128, 2048, 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(&xt26g0xa_ooblayout,
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xt26g0xa_ecc_get_status)),
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SPINAND_INFO("XT26G01B", 0xF1,
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NAND_MEMORG(1, 2048, 64, 64, 1024, 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(&xt26g01b_ooblayout,
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xt26g0xa_ecc_get_status)),
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SPINAND_INFO("XT26G02B", 0xF2,
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NAND_MEMORG(1, 2048, 64, 64, 2048, 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(&xt26g02b_ooblayout,
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xt26g02b_ecc_get_status)),
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};
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static int xtx_spinand_detect(struct spinand_device *spinand)
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{
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u8 *id = spinand->id.data;
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int ret;
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/*
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* XTX SPI NAND read ID needs a dummy byte, so the first byte in
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* raw_id is garbage.
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*/
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if (id[1] != SPINAND_MFR_XTX)
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return 0;
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ret = spinand_match_and_init(spinand, xtx_spinand_table,
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ARRAY_SIZE(xtx_spinand_table),
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id[2]);
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if (ret)
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return ret;
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return 1;
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}
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static const struct spinand_manufacturer_ops xtx_spinand_manuf_ops = {
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.detect = xtx_spinand_detect,
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};
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const struct spinand_manufacturer xtx_spinand_manufacturer = {
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.id = SPINAND_MFR_XTX,
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.name = "xtx",
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.ops = &xtx_spinand_manuf_ops,
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};
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@ -208,6 +208,7 @@ extern const struct spinand_manufacturer toshiba_spinand_manufacturer;
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extern const struct spinand_manufacturer winbond_spinand_manufacturer;
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extern const struct spinand_manufacturer dosilicon_spinand_manufacturer;
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extern const struct spinand_manufacturer esmt_spinand_manufacturer;
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extern const struct spinand_manufacturer xtx_spinand_manufacturer;
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/**
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* struct spinand_op_variants - SPI NAND operation variants
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