[PATCH] mtd: spinand: Add support for XTX XT26xxxDxxxxx
Bruce Sun
bruce_suen at 163.com
Thu Feb 29 10:24:07 CET 2024
Thans for your advice, I will port the driver from linux driver(xtx.c)
later.
On 2/29/2024 5:05 PM, Frieder Schrempf wrote:
> Hi Bruce,
>
> On 26.12.23 08:58, Bruce Suen wrote:
>> [Sie erhalten nicht häufig E-Mails von bruce_suen at 163.com. Weitere Informationen, warum dies wichtig ist, finden Sie unter https://aka.ms/LearnAboutSenderIdentification ]
>>
>> Add Support XTX Technology XT26G01DXXXXX, XT26G11DXXXXX, XT26Q01DXXXXX,
>> XT26G02DXXXXX, XT26G12DXXXXX, XT26Q02DXXXXX, XT26G04DXXXXX, and
>> XT26Q04DXXXXX SPI NAND.
>>
>> These are 3V/1.8V 1G/2G/4Gbit serial SLC NAND flash device with on-die
>> ECC(8bit strength per 512bytes).
>>
>> Datasheet Links:
>> - http://www.xtxtech.com/download/?AId=458
>> - http://www.xtxtech.com/download/?AId=495
>>
>> Signed-off-by: Bruce Suen <bruce_suen at 163.com>
> Below you seem to have written a new driver based on gigadevice.c. Can
> you please instead port the existing Linux driver (xtx.c). This will
> help us to sync the drivers in the future if new chips will be added.
>
> Thanks
> Frieder
>
>> ---
>> drivers/mtd/nand/spi/Makefile | 1 +
>> drivers/mtd/nand/spi/core.c | 1 +
>> drivers/mtd/nand/spi/xtx.c | 180 ++++++++++++++++++++++++++++++++++
>> include/linux/mtd/spinand.h | 1 +
>> 4 files changed, 183 insertions(+)
>> create mode 100644 drivers/mtd/nand/spi/xtx.c
>>
>> diff --git a/drivers/mtd/nand/spi/Makefile b/drivers/mtd/nand/spi/Makefile
>> index 3051de4f7e..e46cfed446 100644
>> --- a/drivers/mtd/nand/spi/Makefile
>> +++ b/drivers/mtd/nand/spi/Makefile
>> @@ -1,4 +1,5 @@
>> # SPDX-License-Identifier: GPL-2.0
>>
>> spinand-objs := core.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o
>> +spinand-objs += xtx.o
>> obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
>> diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
>> index 597b088ca7..0b4c067425 100644
>> --- a/drivers/mtd/nand/spi/core.c
>> +++ b/drivers/mtd/nand/spi/core.c
>> @@ -828,6 +828,7 @@ static const struct spinand_manufacturer *spinand_manufacturers[] = {
>> ¶gon_spinand_manufacturer,
>> &toshiba_spinand_manufacturer,
>> &winbond_spinand_manufacturer,
>> + &xtx_spinand_manufacturer,
>> };
>>
>> static int spinand_manufacturer_match(struct spinand_device *spinand,
>> diff --git a/drivers/mtd/nand/spi/xtx.c b/drivers/mtd/nand/spi/xtx.c
>> new file mode 100644
>> index 0000000000..602861c77b
>> --- /dev/null
>> +++ b/drivers/mtd/nand/spi/xtx.c
>> @@ -0,0 +1,180 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/*
>> + * Copyright (C) 2018 Stefan Roese <sr at denx.de>
>> + *
>> + * Derived from drivers/mtd/nand/spi/micron.c
>> + * Copyright (c) 2016-2017 Micron Technology, Inc.
>> + */
>> +
>> +#ifndef __UBOOT__
>> +#include <linux/device.h>
>> +#include <linux/kernel.h>
>> +#endif
>> +#include <linux/bitfield.h>
>> +#include <linux/mtd/spinand.h>
>> +
>> +#define SPINAND_MFR_XTX 0x0B
>> +
>> +#define XT26XXXD_STATUS_ECC3_ECC2_MASK GENMASK(7, 6)
>> +#define XT26XXXD_STATUS_ECC_NO_DETECTED (0)
>> +#define XT26XXXD_STATUS_ECC_1_7_CORRECTED (1)
>> +#define XT26XXXD_STATUS_ECC_8_CORRECTED (3)
>> +#define XT26XXXD_STATUS_ECC_UNCOR_ERROR (2)
>> +
>> +static SPINAND_OP_VARIANTS(read_cache_variants,
>> + SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, NULL, 0),
>> + SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
>> + SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
>> + SPINAND_PAGE_READ_FROM_CACHE_X2_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 xt26xxxd_ooblayout_ecc(struct mtd_info *mtd, int section,
>> + struct mtd_oob_region *region)
>> +{
>> + if (section)
>> + return -ERANGE;
>> +
>> + region->offset = mtd->oobsize / 2;
>> + region->length = mtd->oobsize / 2;
>> +
>> + return 0;
>> +}
>> +
>> +static int xt26xxxd_ooblayout_free(struct mtd_info *mtd, int section,
>> + struct mtd_oob_region *region)
>> +{
>> + if (section)
>> + return -ERANGE;
>> +
>> + region->offset = 2;
>> + region->length = mtd->oobsize / 2 - 2;
>> +
>> + return 0;
>> +}
>> +
>> +static const struct mtd_ooblayout_ops xt26xxxd_ooblayout = {
>> + .ecc = xt26xxxd_ooblayout_ecc,
>> + .rfree = xt26xxxd_ooblayout_free,
>> +};
>> +
>> +static int xt26xxxd_ecc_get_status(struct spinand_device *spinand,
>> + u8 status)
>> +{
>> + switch (FIELD_GET(STATUS_ECC_MASK, status)) {
>> + case XT26XXXD_STATUS_ECC_NO_DETECTED:
>> + return 0;
>> + case XT26XXXD_STATUS_ECC_UNCOR_ERROR:
>> + return -EBADMSG;
>> + case XT26XXXD_STATUS_ECC_1_7_CORRECTED:
>> + return 4 + FIELD_GET(XT26XXXD_STATUS_ECC3_ECC2_MASK, status);
>> + case XT26XXXD_STATUS_ECC_8_CORRECTED:
>> + return 8;
>> + default:
>> + break;
>> + }
>> +
>> + return -EINVAL;
>> +}
>> +
>> +static const struct spinand_info xtx_spinand_table[] = {
>> + SPINAND_INFO("XT26G01D",
>> + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x31),
>> + 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),
>> + 0,
>> + SPINAND_ECCINFO(&xt26xxxd_ooblayout,
>> + xt26xxxd_ecc_get_status)),
>> + SPINAND_INFO("XT26G11D",
>> + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x34),
>> + 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),
>> + 0,
>> + SPINAND_ECCINFO(&xt26xxxd_ooblayout,
>> + xt26xxxd_ecc_get_status)),
>> + SPINAND_INFO("XT26Q01D",
>> + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x51),
>> + 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),
>> + 0,
>> + SPINAND_ECCINFO(&xt26xxxd_ooblayout,
>> + xt26xxxd_ecc_get_status)),
>> + SPINAND_INFO("XT26G02D",
>> + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x32),
>> + 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),
>> + 0,
>> + SPINAND_ECCINFO(&xt26xxxd_ooblayout,
>> + xt26xxxd_ecc_get_status)),
>> + SPINAND_INFO("XT26G12D",
>> + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x35),
>> + 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),
>> + 0,
>> + SPINAND_ECCINFO(&xt26xxxd_ooblayout,
>> + xt26xxxd_ecc_get_status)),
>> + SPINAND_INFO("XT26Q02D",
>> + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x52),
>> + 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),
>> + 0,
>> + SPINAND_ECCINFO(&xt26xxxd_ooblayout,
>> + xt26xxxd_ecc_get_status)),
>> + SPINAND_INFO("XT26G04D",
>> + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x33),
>> + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
>> + NAND_ECCREQ(8, 512),
>> + SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
>> + &write_cache_variants,
>> + &update_cache_variants),
>> + 0,
>> + SPINAND_ECCINFO(&xt26xxxd_ooblayout,
>> + xt26xxxd_ecc_get_status)),
>> + SPINAND_INFO("XT26Q04D",
>> + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x53),
>> + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
>> + NAND_ECCREQ(8, 512),
>> + SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
>> + &write_cache_variants,
>> + &update_cache_variants),
>> + 0,
>> + SPINAND_ECCINFO(&xt26xxxd_ooblayout,
>> + xt26xxxd_ecc_get_status)),
>> +};
>> +
>> +static const struct spinand_manufacturer_ops xtx_spinand_manuf_ops = {
>> +};
>> +
>> +const struct spinand_manufacturer xtx_spinand_manufacturer = {
>> + .id = SPINAND_MFR_XTX,
>> + .name = "XTX",
>> + .chips = xtx_spinand_table,
>> + .nchips = ARRAY_SIZE(xtx_spinand_table),
>> + .ops = &xtx_spinand_manuf_ops,
>> +};
>> diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
>> index e8d6feb970..bf7696a981 100644
>> --- a/include/linux/mtd/spinand.h
>> +++ b/include/linux/mtd/spinand.h
>> @@ -251,6 +251,7 @@ extern const struct spinand_manufacturer micron_spinand_manufacturer;
>> extern const struct spinand_manufacturer paragon_spinand_manufacturer;
>> extern const struct spinand_manufacturer toshiba_spinand_manufacturer;
>> extern const struct spinand_manufacturer winbond_spinand_manufacturer;
>> +extern const struct spinand_manufacturer xtx_spinand_manufacturer;
>>
>> /**
>> * struct spinand_op_variants - SPI NAND operation variants
>> --
>> 2.34.1
>>
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