368 lines
10 KiB
C
368 lines
10 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Author:
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* Chuanhong Guo <gch981213@gmail.com>
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*/
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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_GIGADEVICE 0xC8
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#define GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS (1 << 4)
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#define GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS (3 << 4)
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#define GD5FXGQ5XE_STATUS_ECC_1_4_BITFLIPS (1 << 4)
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#define GD5FXGQ5XE_STATUS_ECC_4_BITFLIPS (3 << 4)
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#define GD5FXGQXXEXXG_REG_STATUS2 0xf0
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#define GD5FXGQ4UXFXXG_STATUS_ECC_MASK (7 << 4)
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#define GD5FXGQ4UXFXXG_STATUS_ECC_NO_BITFLIPS (0 << 4)
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#define GD5FXGQ4UXFXXG_STATUS_ECC_1_3_BITFLIPS (1 << 4)
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#define GD5FXGQ4UXFXXG_STATUS_ECC_UNCOR_ERROR (7 << 4)
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static SPINAND_OP_VARIANTS(read_cache_variants,
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SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_DUALIO_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(read_cache_variants_f,
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SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_X4_OP_3A(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_X2_OP_3A(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_OP_3A(true, 0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_OP_3A(false, 0, 0, NULL, 0));
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static SPINAND_OP_VARIANTS(read_cache_variants_1gq5,
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SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_DUALIO_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 gd5fxgq4xa_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 gd5fxgq4xa_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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if (section) {
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region->offset = 16 * section;
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region->length = 8;
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} else {
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/* section 0 has one byte reserved for bad block mark */
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region->offset = 1;
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region->length = 7;
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}
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return 0;
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}
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static const struct mtd_ooblayout_ops gd5fxgq4xa_ooblayout = {
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.ecc = gd5fxgq4xa_ooblayout_ecc,
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.free = gd5fxgq4xa_ooblayout_free,
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};
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static int gd5fxgq4xa_ecc_get_status(struct spinand_device *spinand,
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u8 status)
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{
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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 GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS:
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/* 1-7 bits are flipped. return the maximum. */
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return 7;
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case GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS:
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return 8;
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case STATUS_ECC_UNCOR_ERROR:
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return -EBADMSG;
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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 gd5fxgqx_variant2_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 = 64;
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region->length = 64;
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return 0;
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}
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static int gd5fxgqx_variant2_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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/* Reserve 1 bytes for the BBM. */
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region->offset = 1;
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region->length = 63;
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return 0;
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}
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/* Valid for Q4/Q5 and Q6 (untested) devices */
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static const struct mtd_ooblayout_ops gd5fxgqx_variant2_ooblayout = {
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.ecc = gd5fxgqx_variant2_ooblayout_ecc,
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.free = gd5fxgqx_variant2_ooblayout_free,
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};
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static int gd5fxgq4xc_ooblayout_256_ecc(struct mtd_info *mtd, int section,
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struct mtd_oob_region *oobregion)
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{
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if (section)
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return -ERANGE;
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oobregion->offset = 128;
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oobregion->length = 128;
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return 0;
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}
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static int gd5fxgq4xc_ooblayout_256_free(struct mtd_info *mtd, int section,
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struct mtd_oob_region *oobregion)
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{
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if (section)
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return -ERANGE;
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oobregion->offset = 1;
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oobregion->length = 127;
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return 0;
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}
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static const struct mtd_ooblayout_ops gd5fxgq4xc_oob_256_ops = {
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.ecc = gd5fxgq4xc_ooblayout_256_ecc,
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.free = gd5fxgq4xc_ooblayout_256_free,
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};
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static int gd5fxgq4uexxg_ecc_get_status(struct spinand_device *spinand,
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u8 status)
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{
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u8 status2;
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struct spi_mem_op op = SPINAND_GET_FEATURE_OP(GD5FXGQXXEXXG_REG_STATUS2,
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&status2);
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int ret;
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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 GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS:
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/*
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* Read status2 register to determine a more fine grained
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* bit error status
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*/
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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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* 4 ... 7 bits are flipped (1..4 can't be detected, so
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* report the maximum of 4 in this case
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*/
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/* bits sorted this way (3...0): ECCS1,ECCS0,ECCSE1,ECCSE0 */
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return ((status & STATUS_ECC_MASK) >> 2) |
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((status2 & STATUS_ECC_MASK) >> 4);
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case GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS:
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return 8;
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case STATUS_ECC_UNCOR_ERROR:
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return -EBADMSG;
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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 gd5fxgq5xexxg_ecc_get_status(struct spinand_device *spinand,
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u8 status)
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{
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u8 status2;
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struct spi_mem_op op = SPINAND_GET_FEATURE_OP(GD5FXGQXXEXXG_REG_STATUS2,
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&status2);
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int ret;
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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 GD5FXGQ5XE_STATUS_ECC_1_4_BITFLIPS:
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/*
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* Read status2 register to determine a more fine grained
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* bit error status
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*/
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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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* 1 ... 4 bits are flipped (and corrected)
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*/
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/* bits sorted this way (1...0): ECCSE1, ECCSE0 */
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return ((status2 & STATUS_ECC_MASK) >> 4) + 1;
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case STATUS_ECC_UNCOR_ERROR:
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return -EBADMSG;
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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 gd5fxgq4ufxxg_ecc_get_status(struct spinand_device *spinand,
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u8 status)
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{
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switch (status & GD5FXGQ4UXFXXG_STATUS_ECC_MASK) {
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case GD5FXGQ4UXFXXG_STATUS_ECC_NO_BITFLIPS:
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return 0;
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case GD5FXGQ4UXFXXG_STATUS_ECC_1_3_BITFLIPS:
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return 3;
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case GD5FXGQ4UXFXXG_STATUS_ECC_UNCOR_ERROR:
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return -EBADMSG;
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default: /* (2 << 4) through (6 << 4) are 4-8 corrected errors */
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return ((status & GD5FXGQ4UXFXXG_STATUS_ECC_MASK) >> 4) + 2;
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}
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return -EINVAL;
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}
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static const struct spinand_info gigadevice_spinand_table[] = {
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SPINAND_INFO("GD5F1GQ4xA",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xf1),
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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(&gd5fxgq4xa_ooblayout,
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gd5fxgq4xa_ecc_get_status)),
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SPINAND_INFO("GD5F2GQ4xA",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xf2),
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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(&gd5fxgq4xa_ooblayout,
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gd5fxgq4xa_ecc_get_status)),
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SPINAND_INFO("GD5F4GQ4xA",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xf4),
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NAND_MEMORG(1, 2048, 64, 64, 4096, 80, 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(&gd5fxgq4xa_ooblayout,
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gd5fxgq4xa_ecc_get_status)),
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SPINAND_INFO("GD5F4GQ4RC",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE, 0xa4, 0x68),
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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_f,
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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(&gd5fxgq4xc_oob_256_ops,
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gd5fxgq4ufxxg_ecc_get_status)),
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SPINAND_INFO("GD5F4GQ4UC",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE, 0xb4, 0x68),
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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_f,
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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(&gd5fxgq4xc_oob_256_ops,
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gd5fxgq4ufxxg_ecc_get_status)),
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SPINAND_INFO("GD5F1GQ4UExxG",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xd1),
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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(&gd5fxgqx_variant2_ooblayout,
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gd5fxgq4uexxg_ecc_get_status)),
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SPINAND_INFO("GD5F1GQ4UFxxG",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE, 0xb1, 0x48),
|
||
|
|
NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(8, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants_f,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
|
||
|
|
gd5fxgq4ufxxg_ecc_get_status)),
|
||
|
|
SPINAND_INFO("GD5F1GQ5UExxG",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x51),
|
||
|
|
NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(4, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
|
||
|
|
gd5fxgq5xexxg_ecc_get_status)),
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct spinand_manufacturer_ops gigadevice_spinand_manuf_ops = {
|
||
|
|
};
|
||
|
|
|
||
|
|
const struct spinand_manufacturer gigadevice_spinand_manufacturer = {
|
||
|
|
.id = SPINAND_MFR_GIGADEVICE,
|
||
|
|
.name = "GigaDevice",
|
||
|
|
.chips = gigadevice_spinand_table,
|
||
|
|
.nchips = ARRAY_SIZE(gigadevice_spinand_table),
|
||
|
|
.ops = &gigadevice_spinand_manuf_ops,
|
||
|
|
};
|