diff --git a/drivers/mtd/nand/spi/Makefile b/drivers/mtd/nand/spi/Makefile index efe26c6ed0..3670ca5886 100644 --- a/drivers/mtd/nand/spi/Makefile +++ b/drivers/mtd/nand/spi/Makefile @@ -1,4 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 -spinand-objs := core.o gigadevice.o macronix.o micron.o toshiba.o winbond.o dosilicon.o esmt.o xtx.o +spinand-objs := core.o gigadevice.o macronix.o micron.o toshiba.o winbond.o dosilicon.o esmt.o xtx.o hyf.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 83033f10a7..d0658d3b91 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -823,6 +823,7 @@ static const struct spinand_manufacturer *spinand_manufacturers[] = { &dosilicon_spinand_manufacturer, &esmt_spinand_manufacturer, &xtx_spinand_manufacturer, + &hyf_spinand_manufacturer, }; static int spinand_manufacturer_detect(struct spinand_device *spinand) diff --git a/drivers/mtd/nand/spi/hyf.c b/drivers/mtd/nand/spi/hyf.c new file mode 100644 index 0000000000..0be351d6e5 --- /dev/null +++ b/drivers/mtd/nand/spi/hyf.c @@ -0,0 +1,168 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2020 exceet electronics GmbH + * + * Authors: + * Frieder Schrempf + * Boris Brezillon + */ + +#ifndef __UBOOT__ +#include +#include +#endif +#include + +#define SPINAND_MFR_HYF 0xC9 + +static SPINAND_OP_VARIANTS(read_cache_variants, + SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, 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 hyf1gq4upacae_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section) + return -ERANGE; + + region->offset = 64; + region->length = 64; + + return 0; +} + +static int hyf1gq4upacae_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section) + return -ERANGE; + + region->offset = 1; + region->length = 63; + + return 0; +} + +static const struct mtd_ooblayout_ops hyf1gq4upacae_ooblayout = { + .ecc = hyf1gq4upacae_ooblayout_ecc, + .rfree = hyf1gq4upacae_ooblayout_free, +}; + +static int hyf1gq4udacae_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 hyf1gq4udacae_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section > 3) + return -ERANGE; + + region->offset = (16 * section) + 4; + region->length = 4; + + return 0; +} + +static const struct mtd_ooblayout_ops hyf1gq4udacae_ooblayout = { + .ecc = hyf1gq4udacae_ooblayout_ecc, + .rfree = hyf1gq4udacae_ooblayout_free, +}; + +static int hyf1gq4udacae_ecc_get_status(struct spinand_device *spinand, + u8 status) +{ + struct nand_device *nand = spinand_to_nand(spinand); + + switch (status & STATUS_ECC_MASK) { + case STATUS_ECC_NO_BITFLIPS: + return 0; + + case STATUS_ECC_UNCOR_ERROR: + return -EBADMSG; + + case STATUS_ECC_HAS_BITFLIPS: + return 1; + + default: + return nand->eccreq.strength; + } + + return -EINVAL; +} + +static const struct spinand_info hyf_spinand_table[] = { + SPINAND_INFO("HYF1GQ4UPACAE", 0xA1, + NAND_MEMORG(1, 2048, 128, 64, 1024, 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(&hyf1gq4upacae_ooblayout, NULL)), + SPINAND_INFO("HYF1GQ4UDACAE", 0x21, + NAND_MEMORG(1, 2048, 64, 64, 1024, 2, 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(&hyf1gq4udacae_ooblayout, + hyf1gq4udacae_ecc_get_status)), +}; + +/** + * hyf_spinand_detect - initialize device related part in spinand_device + * struct if it is a hyf device. + * @spinand: SPI NAND device structure + */ +static int hyf_spinand_detect(struct spinand_device *spinand) +{ + u8 *id = spinand->id.data; + int ret; + + /* + * hyf SPI NAND read ID needs a dummy byte, so the first byte in + * raw_id is garbage. + */ + if (id[1] != SPINAND_MFR_HYF) + return 0; + + ret = spinand_match_and_init(spinand, hyf_spinand_table, + ARRAY_SIZE(hyf_spinand_table), + id[2]); + if (ret) + return ret; + + return 1; +} + +static const struct spinand_manufacturer_ops hyf_spinand_manuf_ops = { + .detect = hyf_spinand_detect, +}; + +const struct spinand_manufacturer hyf_spinand_manufacturer = { + .id = SPINAND_MFR_HYF, + .name = "hyf", + .ops = &hyf_spinand_manuf_ops, +}; diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h index 5206ad60a7..c10249038a 100644 --- a/include/linux/mtd/spinand.h +++ b/include/linux/mtd/spinand.h @@ -209,6 +209,7 @@ extern const struct spinand_manufacturer winbond_spinand_manufacturer; extern const struct spinand_manufacturer dosilicon_spinand_manufacturer; extern const struct spinand_manufacturer esmt_spinand_manufacturer; extern const struct spinand_manufacturer xtx_spinand_manufacturer; +extern const struct spinand_manufacturer hyf_spinand_manufacturer; /** * struct spinand_op_variants - SPI NAND operation variants