diff options
11 files changed, 3992 insertions, 0 deletions
diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/Kconfig b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/Kconfig new file mode 100644 index 0000000000..58aa563832 --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/Kconfig @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (C) 2020 MediaTek Inc. All rights reserved. +# Author: Weijie Gao <weijie.gao@mediatek.com> +# + +config MTK_SPI_NAND + tristate "MediaTek SPI NAND flash controller driver" + depends on MTD + default n + help + This option enables access to SPI-NAND flashes through the + MTD interface of MediaTek SPI NAND Flash Controller diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/Makefile b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/Makefile new file mode 100644 index 0000000000..e6b3710046 --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/Makefile @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (C) 2020 MediaTek Inc. All rights reserved. +# Author: Weijie Gao <weijie.gao@mediatek.com> +# + +obj-y += mtk-snand.o mtk-snand-ecc.o mtk-snand-ids.o mtk-snand-os.o \ + mtk-snand-mtd.o + +ccflags-y += -DPRIVATE_MTK_SNAND_HEADER diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-def.h b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-def.h new file mode 100644 index 0000000000..1a93d93dcd --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-def.h @@ -0,0 +1,268 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao <weijie.gao@mediatek.com> + */ + +#ifndef _MTK_SNAND_DEF_H_ +#define _MTK_SNAND_DEF_H_ + +#include "mtk-snand-os.h" + +#ifdef PRIVATE_MTK_SNAND_HEADER +#include "mtk-snand.h" +#else +#include <mtk-snand.h> +#endif + +struct mtk_snand_plat_dev; + +enum snand_flash_io { + SNAND_IO_1_1_1, + SNAND_IO_1_1_2, + SNAND_IO_1_2_2, + SNAND_IO_1_1_4, + SNAND_IO_1_4_4, + + __SNAND_IO_MAX +}; + +#define SPI_IO_1_1_1 BIT(SNAND_IO_1_1_1) +#define SPI_IO_1_1_2 BIT(SNAND_IO_1_1_2) +#define SPI_IO_1_2_2 BIT(SNAND_IO_1_2_2) +#define SPI_IO_1_1_4 BIT(SNAND_IO_1_1_4) +#define SPI_IO_1_4_4 BIT(SNAND_IO_1_4_4) + +struct snand_opcode { + uint8_t opcode; + uint8_t dummy; +}; + +struct snand_io_cap { + uint8_t caps; + struct snand_opcode opcodes[__SNAND_IO_MAX]; +}; + +#define SNAND_OP(_io, _opcode, _dummy) [_io] = { .opcode = (_opcode), \ + .dummy = (_dummy) } + +#define SNAND_IO_CAP(_name, _caps, ...) \ + struct snand_io_cap _name = { .caps = (_caps), \ + .opcodes = { __VA_ARGS__ } } + +#define SNAND_MAX_ID_LEN 4 + +enum snand_id_type { + SNAND_ID_DYMMY, + SNAND_ID_ADDR = SNAND_ID_DYMMY, + SNAND_ID_DIRECT, + + __SNAND_ID_TYPE_MAX +}; + +struct snand_id { + uint8_t type; /* enum snand_id_type */ + uint8_t len; + uint8_t id[SNAND_MAX_ID_LEN]; +}; + +#define SNAND_ID(_type, ...) \ + { .type = (_type), .id = { __VA_ARGS__ }, \ + .len = sizeof((uint8_t[]) { __VA_ARGS__ }) } + +struct snand_mem_org { + uint16_t pagesize; + uint16_t sparesize; + uint16_t pages_per_block; + uint16_t blocks_per_die; + uint16_t planes_per_die; + uint16_t ndies; +}; + +#define SNAND_MEMORG(_ps, _ss, _ppb, _bpd, _ppd, _nd) \ + { .pagesize = (_ps), .sparesize = (_ss), .pages_per_block = (_ppb), \ + .blocks_per_die = (_bpd), .planes_per_die = (_ppd), .ndies = (_nd) } + +typedef int (*snand_select_die_t)(struct mtk_snand *snf, uint32_t dieidx); + +struct snand_flash_info { + const char *model; + struct snand_id id; + const struct snand_mem_org memorg; + const struct snand_io_cap *cap_rd; + const struct snand_io_cap *cap_pl; + snand_select_die_t select_die; +}; + +#define SNAND_INFO(_model, _id, _memorg, _cap_rd, _cap_pl, ...) \ + { .model = (_model), .id = _id, .memorg = _memorg, \ + .cap_rd = (_cap_rd), .cap_pl = (_cap_pl), __VA_ARGS__ } + +const struct snand_flash_info *snand_flash_id_lookup(enum snand_id_type type, + const uint8_t *id); + +struct mtk_snand_soc_data { + uint16_t sector_size; + uint16_t max_sectors; + uint16_t fdm_size; + uint16_t fdm_ecc_size; + uint16_t fifo_size; + + bool bbm_swap; + bool empty_page_check; + uint32_t mastersta_mask; + + const uint8_t *spare_sizes; + uint32_t num_spare_size; +}; + +enum mtk_ecc_regs { + ECC_DECDONE, +}; + +struct mtk_ecc_soc_data { + const uint8_t *ecc_caps; + uint32_t num_ecc_cap; + const uint32_t *regs; + uint16_t mode_shift; + uint8_t errnum_bits; + uint8_t errnum_shift; +}; + +struct mtk_snand { + struct mtk_snand_plat_dev *pdev; + + void __iomem *nfi_base; + void __iomem *ecc_base; + + enum mtk_snand_soc soc; + const struct mtk_snand_soc_data *nfi_soc; + const struct mtk_ecc_soc_data *ecc_soc; + bool snfi_quad_spi; + bool quad_spi_op; + + const char *model; + uint64_t size; + uint64_t die_size; + uint32_t erasesize; + uint32_t writesize; + uint32_t oobsize; + + uint32_t num_dies; + snand_select_die_t select_die; + + uint8_t opcode_rfc; + uint8_t opcode_pl; + uint8_t dummy_rfc; + uint8_t mode_rfc; + uint8_t mode_pl; + + uint32_t writesize_mask; + uint32_t writesize_shift; + uint32_t erasesize_mask; + uint32_t erasesize_shift; + uint64_t die_mask; + uint32_t die_shift; + + uint32_t spare_per_sector; + uint32_t raw_sector_size; + uint32_t ecc_strength; + uint32_t ecc_steps; + uint32_t ecc_bytes; + uint32_t ecc_parity_bits; + + uint8_t *page_cache; /* Used by read/write page */ + uint8_t *buf_cache; /* Used by block bad/markbad & auto_oob */ + int *sect_bf; /* Used by ECC correction */ +}; + +enum mtk_snand_log_category { + SNAND_LOG_NFI, + SNAND_LOG_SNFI, + SNAND_LOG_ECC, + SNAND_LOG_CHIP, + + __SNAND_LOG_CAT_MAX +}; + +int mtk_ecc_setup(struct mtk_snand *snf, void *fmdaddr, uint32_t max_ecc_bytes, + uint32_t msg_size); +int mtk_snand_ecc_encoder_start(struct mtk_snand *snf); +void mtk_snand_ecc_encoder_stop(struct mtk_snand *snf); +int mtk_snand_ecc_decoder_start(struct mtk_snand *snf); +void mtk_snand_ecc_decoder_stop(struct mtk_snand *snf); +int mtk_ecc_wait_decoder_done(struct mtk_snand *snf); +int mtk_ecc_check_decode_error(struct mtk_snand *snf); +int mtk_ecc_fixup_empty_sector(struct mtk_snand *snf, uint32_t sect); + +int mtk_snand_mac_io(struct mtk_snand *snf, const uint8_t *out, uint32_t outlen, + uint8_t *in, uint32_t inlen); +int mtk_snand_set_feature(struct mtk_snand *snf, uint32_t addr, uint32_t val); + +int mtk_snand_log(struct mtk_snand_plat_dev *pdev, + enum mtk_snand_log_category cat, const char *fmt, ...); + +#define snand_log_nfi(pdev, fmt, ...) \ + mtk_snand_log(pdev, SNAND_LOG_NFI, fmt, ##__VA_ARGS__) + +#define snand_log_snfi(pdev, fmt, ...) \ + mtk_snand_log(pdev, SNAND_LOG_SNFI, fmt, ##__VA_ARGS__) + +#define snand_log_ecc(pdev, fmt, ...) \ + mtk_snand_log(pdev, SNAND_LOG_ECC, fmt, ##__VA_ARGS__) + +#define snand_log_chip(pdev, fmt, ...) \ + mtk_snand_log(pdev, SNAND_LOG_CHIP, fmt, ##__VA_ARGS__) + +/* ffs64 */ +static inline int mtk_snand_ffs64(uint64_t x) +{ + if (!x) + return 0; + + if (!(x & 0xffffffff)) + return ffs((uint32_t)(x >> 32)) + 32; + + return ffs((uint32_t)(x & 0xffffffff)); +} + +/* NFI dummy commands */ +#define NFI_CMD_DUMMY_READ 0x00 +#define NFI_CMD_DUMMY_WRITE 0x80 + +/* SPI-NAND opcodes */ +#define SNAND_CMD_RESET 0xff +#define SNAND_CMD_BLOCK_ERASE 0xd8 +#define SNAND_CMD_READ_FROM_CACHE_QUAD 0xeb +#define SNAND_CMD_WINBOND_SELECT_DIE 0xc2 +#define SNAND_CMD_READ_FROM_CACHE_DUAL 0xbb +#define SNAND_CMD_READID 0x9f +#define SNAND_CMD_READ_FROM_CACHE_X4 0x6b +#define SNAND_CMD_READ_FROM_CACHE_X2 0x3b +#define SNAND_CMD_PROGRAM_LOAD_X4 0x32 +#define SNAND_CMD_SET_FEATURE 0x1f +#define SNAND_CMD_READ_TO_CACHE 0x13 +#define SNAND_CMD_PROGRAM_EXECUTE 0x10 +#define SNAND_CMD_GET_FEATURE 0x0f +#define SNAND_CMD_READ_FROM_CACHE 0x0b +#define SNAND_CMD_WRITE_ENABLE 0x06 +#define SNAND_CMD_PROGRAM_LOAD 0x02 + +/* SPI-NAND feature addresses */ +#define SNAND_FEATURE_MICRON_DIE_ADDR 0xd0 +#define SNAND_MICRON_DIE_SEL_1 BIT(6) + +#define SNAND_FEATURE_STATUS_ADDR 0xc0 +#define SNAND_STATUS_OIP BIT(0) +#define SNAND_STATUS_WEL BIT(1) +#define SNAND_STATUS_ERASE_FAIL BIT(2) +#define SNAND_STATUS_PROGRAM_FAIL BIT(3) + +#define SNAND_FEATURE_CONFIG_ADDR 0xb0 +#define SNAND_FEATURE_QUAD_ENABLE BIT(0) +#define SNAND_FEATURE_ECC_EN BIT(4) + +#define SNAND_FEATURE_PROTECT_ADDR 0xa0 + +#endif /* _MTK_SNAND_DEF_H_ */ diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-ecc.c b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-ecc.c new file mode 100644 index 0000000000..6dd0f346c8 --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-ecc.c @@ -0,0 +1,379 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao <weijie.gao@mediatek.com> + */ + +#include "mtk-snand-def.h" + +/* ECC registers */ +#define ECC_ENCCON 0x000 +#define ENC_EN BIT(0) + +#define ECC_ENCCNFG 0x004 +#define ENC_MS_S 16 +#define ENC_BURST_EN BIT(8) +#define ENC_TNUM_S 0 + +#define ECC_ENCIDLE 0x00c +#define ENC_IDLE BIT(0) + +#define ECC_DECCON 0x100 +#define DEC_EN BIT(0) + +#define ECC_DECCNFG 0x104 +#define DEC_EMPTY_EN BIT(31) +#define DEC_CS_S 16 +#define DEC_CON_S 12 +#define DEC_CON_CORRECT 3 +#define DEC_BURST_EN BIT(8) +#define DEC_TNUM_S 0 + +#define ECC_DECIDLE 0x10c +#define DEC_IDLE BIT(0) + +#define ECC_DECENUM0 0x114 +#define ECC_DECENUM(n) (ECC_DECENUM0 + (n) * 4) + +/* ECC_ENCIDLE & ECC_DECIDLE */ +#define ECC_IDLE BIT(0) + +/* ENC_MODE & DEC_MODE */ +#define ECC_MODE_NFI 1 + +#define ECC_TIMEOUT 500000 + +static const uint8_t mt7622_ecc_caps[] = { 4, 6, 8, 10, 12 }; + +static const uint32_t mt7622_ecc_regs[] = { + [ECC_DECDONE] = 0x11c, +}; + +static const struct mtk_ecc_soc_data mtk_ecc_socs[__SNAND_SOC_MAX] = { + [SNAND_SOC_MT7622] = { + .ecc_caps = mt7622_ecc_caps, + .num_ecc_cap = ARRAY_SIZE(mt7622_ecc_caps), + .regs = mt7622_ecc_regs, + .mode_shift = 4, + .errnum_bits = 5, + .errnum_shift = 5, + }, + [SNAND_SOC_MT7629] = { + .ecc_caps = mt7622_ecc_caps, + .num_ecc_cap = ARRAY_SIZE(mt7622_ecc_caps), + .regs = mt7622_ecc_regs, + .mode_shift = 4, + .errnum_bits = 5, + .errnum_shift = 5, + }, +}; + +static inline uint32_t ecc_read32(struct mtk_snand *snf, uint32_t reg) +{ + return readl(snf->ecc_base + reg); +} + +static inline void ecc_write32(struct mtk_snand *snf, uint32_t reg, + uint32_t val) +{ + writel(val, snf->ecc_base + reg); +} + +static inline void ecc_write16(struct mtk_snand *snf, uint32_t reg, + uint16_t val) +{ + writew(val, snf->ecc_base + reg); +} + +static int mtk_ecc_poll(struct mtk_snand *snf, uint32_t reg, uint32_t bits) +{ + uint32_t val; + + return read16_poll_timeout(snf->ecc_base + reg, val, (val & bits), 0, + ECC_TIMEOUT); +} + +static int mtk_ecc_wait_idle(struct mtk_snand *snf, uint32_t reg) +{ + int ret; + + ret = mtk_ecc_poll(snf, reg, ECC_IDLE); + if (ret) { + snand_log_ecc(snf->pdev, "ECC engine is busy\n"); + return -EBUSY; + } + + return 0; +} + +int mtk_ecc_setup(struct mtk_snand *snf, void *fmdaddr, uint32_t max_ecc_bytes, + uint32_t msg_size) +{ + uint32_t i, val, ecc_msg_bits, ecc_strength; + int ret; + + snf->ecc_soc = &mtk_ecc_socs[snf->soc]; + + snf->ecc_parity_bits = fls(1 + 8 * msg_size); + ecc_strength = max_ecc_bytes * 8 / snf->ecc_parity_bits; + + for (i = snf->ecc_soc->num_ecc_cap - 1; i >= 0; i--) { + if (snf->ecc_soc->ecc_caps[i] <= ecc_strength) + break; + } + + if (unlikely(i < 0)) { + snand_log_ecc(snf->pdev, "Page size %u+%u is not supported\n", + snf->writesize, snf->oobsize); + return -ENOTSUPP; + } + + snf->ecc_strength = snf->ecc_soc->ecc_caps[i]; + snf->ecc_bytes = DIV_ROUND_UP(snf->ecc_strength * snf->ecc_parity_bits, + 8); + + /* Encoder config */ + ecc_write16(snf, ECC_ENCCON, 0); + ret = mtk_ecc_wait_idle(snf, ECC_ENCIDLE); + if (ret) + return ret; + + ecc_msg_bits = msg_size * 8; + val = (ecc_msg_bits << ENC_MS_S) | + (ECC_MODE_NFI << snf->ecc_soc->mode_shift) | i; + ecc_write32(snf, ECC_ENCCNFG, val); + + /* Decoder config */ + ecc_write16(snf, ECC_DECCON, 0); + ret = mtk_ecc_wait_idle(snf, ECC_DECIDLE); + if (ret) + return ret; + + ecc_msg_bits += snf->ecc_strength * snf->ecc_parity_bits; + val = DEC_EMPTY_EN | (ecc_msg_bits << DEC_CS_S) | + (DEC_CON_CORRECT << DEC_CON_S) | + (ECC_MODE_NFI << snf->ecc_soc->mode_shift) | i; + ecc_write32(snf, ECC_DECCNFG, val); + + return 0; +} + +int mtk_snand_ecc_encoder_start(struct mtk_snand *snf) +{ + int ret; + + ret = mtk_ecc_wait_idle(snf, ECC_ENCIDLE); + if (ret) { + ecc_write16(snf, ECC_ENCCON, 0); + mtk_ecc_wait_idle(snf, ECC_ENCIDLE); + } + + ecc_write16(snf, ECC_ENCCON, ENC_EN); + + return 0; +} + +void mtk_snand_ecc_encoder_stop(struct mtk_snand *snf) +{ + mtk_ecc_wait_idle(snf, ECC_ENCIDLE); + ecc_write16(snf, ECC_ENCCON, 0); +} + +int mtk_snand_ecc_decoder_start(struct mtk_snand *snf) +{ + int ret; + + ret = mtk_ecc_wait_idle(snf, ECC_DECIDLE); + if (ret) { + ecc_write16(snf, ECC_DECCON, 0); + mtk_ecc_wait_idle(snf, ECC_DECIDLE); + } + + ecc_write16(snf, ECC_DECCON, DEC_EN); + + return 0; +} + +void mtk_snand_ecc_decoder_stop(struct mtk_snand *snf) +{ + mtk_ecc_wait_idle(snf, ECC_DECIDLE); + ecc_write16(snf, ECC_DECCON, 0); +} + +int mtk_ecc_wait_decoder_done(struct mtk_snand *snf) +{ + uint16_t val, step_mask = (1 << snf->ecc_steps) - 1; + uint32_t reg = snf->ecc_soc->regs[ECC_DECDONE]; + int ret; + + ret = read16_poll_timeout(snf->ecc_base + reg, val, + (val & step_mask) == step_mask, 0, + ECC_TIMEOUT); + if (ret) + snand_log_ecc(snf->pdev, "ECC decoder is busy\n"); + + return ret; +} + +int mtk_ecc_check_decode_error(struct mtk_snand *snf) +{ + uint32_t i, regi, fi, errnum; + uint32_t errnum_shift = snf->ecc_soc->errnum_shift; + uint32_t errnum_mask = (1 << snf->ecc_soc->errnum_bits) - 1; + int ret = 0; + + for (i = 0; i < snf->ecc_steps; i++) { + regi = i / 4; + fi = i % 4; + + errnum = ecc_read32(snf, ECC_DECENUM(regi)); + errnum = (errnum >> (fi * errnum_shift)) & errnum_mask; + + if (errnum <= snf->ecc_strength) { + snf->sect_bf[i] = errnum; + } else { + snf->sect_bf[i] = -1; + ret = -EBADMSG; + } + } + + return ret; +} + +static int mtk_ecc_check_buf_bitflips(struct mtk_snand *snf, const void *buf, + size_t len, uint32_t bitflips) +{ + const uint8_t *buf8 = buf; + const uint32_t *buf32; + uint32_t d, weight; + + while (len && ((uintptr_t)buf8) % sizeof(uint32_t)) { + weight = hweight8(*buf8); + bitflips += BITS_PER_BYTE - weight; + buf8++; + len--; + + if (bitflips > snf->ecc_strength) + return -EBADMSG; + } + + buf32 = (const uint32_t *)buf8; + while (len >= sizeof(uint32_t)) { + d = *buf32; + + if (d != ~0) { + weight = hweight32(d); + bitflips += sizeof(uint32_t) * BITS_PER_BYTE - weight; + } + + buf32++; + len -= sizeof(uint32_t); + + if (bitflips > snf->ecc_strength) + return -EBADMSG; + } + + buf8 = (const uint8_t *)buf32; + while (len) { + weight = hweight8(*buf8); + bitflips += BITS_PER_BYTE - weight; + buf8++; + len--; + + if (bitflips > snf->ecc_strength) + return -EBADMSG; + } + + return bitflips; +} + +static int mtk_ecc_check_parity_bitflips(struct mtk_snand *snf, const void *buf, + uint32_t bits, uint32_t bitflips) +{ + uint32_t len, i; + uint8_t b; + int rc; + + len = bits >> 3; + bits &= 7; + + rc = mtk_ecc_check_buf_bitflips(snf, buf, len, bitflips); + if (!bits || rc < 0) + return rc; + + bitflips = rc; + + /* We want a precise count of bits */ + b = ((const uint8_t *)buf)[len]; + for (i = 0; i < bits; i++) { + if (!(b & BIT(i))) + bitflips++; + } + + if (bitflips > snf->ecc_strength) + return -EBADMSG; + + return bitflips; +} + +static void mtk_ecc_reset_parity(void *buf, uint32_t bits) +{ + uint32_t len; + + len = bits >> 3; + bits &= 7; + + memset(buf, 0xff, len); + + /* Only reset bits protected by ECC to 1 */ + if (bits) + ((uint8_t *)buf)[len] |= GENMASK(bits - 1, 0); +} + +int mtk_ecc_fixup_empty_sector(struct mtk_snand *snf, uint32_t sect) +{ + uint32_t ecc_bytes = snf->spare_per_sector - snf->nfi_soc->fdm_size; + uint8_t *oob = snf->page_cache + snf->writesize; + uint8_t *data_ptr, *fdm_ptr, *ecc_ptr; + int bitflips = 0, ecc_bits, parity_bits; + + parity_bits = fls(snf->nfi_soc->sector_size * 8); + ecc_bits = snf->ecc_strength * parity_bits; + + data_ptr = snf->page_cache + sect * snf->nfi_soc->sector_size; + fdm_ptr = oob + sect * snf->nfi_soc->fdm_size; + ecc_ptr = oob + snf->ecc_steps * snf->nfi_soc->fdm_size + + sect * ecc_bytes; + + /* + * Check whether DATA + FDM + ECC of a sector contains correctable + * bitflips + */ + bitflips = mtk_ecc_check_buf_bitflips(snf, data_ptr, + snf->nfi_soc->sector_size, + bitflips); + if (bitflips < 0) + return -EBADMSG; + + bitflips = mtk_ecc_check_buf_bitflips(snf, fdm_ptr, + snf->nfi_soc->fdm_ecc_size, + bitflips); + if (bitflips < 0) + return -EBADMSG; + + bitflips = mtk_ecc_check_parity_bitflips(snf, ecc_ptr, ecc_bits, + bitflips); + if (bitflips < 0) + return -EBADMSG; + + if (!bitflips) + return 0; + + /* Reset the data of this sector to 0xff */ + memset(data_ptr, 0xff, snf->nfi_soc->sector_size); + memset(fdm_ptr, 0xff, snf->nfi_soc->fdm_ecc_size); + mtk_ecc_reset_parity(ecc_ptr, ecc_bits); + + return bitflips; +} diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-ids.c b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-ids.c new file mode 100644 index 0000000000..1756ff7e30 --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-ids.c @@ -0,0 +1,511 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao <weijie.gao@mediatek.com> + */ + +#include "mtk-snand-def.h" + +static int mtk_snand_winbond_select_die(struct mtk_snand *snf, uint32_t dieidx); +static int mtk_snand_micron_select_die(struct mtk_snand *snf, uint32_t dieidx); + +#define SNAND_MEMORG_512M_2K_64 SNAND_MEMORG(2048, 64, 64, 512, 1, 1) +#define SNAND_MEMORG_1G_2K_64 SNAND_MEMORG(2048, 64, 64, 1024, 1, 1) +#define SNAND_MEMORG_2G_2K_64 SNAND_MEMORG(2048, 64, 64, 2048, 1, 1) +#define SNAND_MEMORG_2G_2K_120 SNAND_MEMORG(2048, 120, 64, 2048, 1, 1) +#define SNAND_MEMORG_4G_2K_64 SNAND_MEMORG(2048, 64, 64, 4096, 1, 1) +#define SNAND_MEMORG_1G_2K_120 SNAND_MEMORG(2048, 120, 64, 1024, 1, 1) +#define SNAND_MEMORG_1G_2K_128 SNAND_MEMORG(2048, 128, 64, 1024, 1, 1) +#define SNAND_MEMORG_2G_2K_128 SNAND_MEMORG(2048, 128, 64, 2048, 1, 1) +#define SNAND_MEMORG_4G_2K_128 SNAND_MEMORG(2048, 128, 64, 4096, 1, 1) +#define SNAND_MEMORG_4G_4K_240 SNAND_MEMORG(4096, 240, 64, 2048, 1, 1) +#define SNAND_MEMORG_4G_4K_256 SNAND_MEMORG(4096, 256, 64, 2048, 1, 1) +#define SNAND_MEMORG_8G_4K_256 SNAND_MEMORG(4096, 256, 64, 4096, 1, 1) +#define SNAND_MEMORG_2G_2K_64_2P SNAND_MEMORG(2048, 64, 64, 2048, 2, 1) +#define SNAND_MEMORG_2G_2K_64_2D SNAND_MEMORG(2048, 64, 64, 1024, 1, 2) +#define SNAND_MEMORG_2G_2K_128_2P SNAND_MEMORG(2048, 128, 64, 2048, 2, 1) +#define SNAND_MEMORG_4G_2K_64_2P SNAND_MEMORG(2048, 64, 64, 4096, 2, 1) +#define SNAND_MEMORG_4G_2K_128_2P_2D SNAND_MEMORG(2048, 128, 64, 2048, 2, 2) +#define SNAND_MEMORG_8G_4K_256_2D SNAND_MEMORG(4096, 256, 64, 2048, 1, 2) + +static const SNAND_IO_CAP(snand_cap_read_from_cache_quad, + SPI_IO_1_1_1 | SPI_IO_1_1_2 | SPI_IO_1_2_2 | SPI_IO_1_1_4 | + SPI_IO_1_4_4, + SNAND_OP(SNAND_IO_1_1_1, SNAND_CMD_READ_FROM_CACHE, 8), + SNAND_OP(SNAND_IO_1_1_2, SNAND_CMD_READ_FROM_CACHE_X2, 8), + SNAND_OP(SNAND_IO_1_2_2, SNAND_CMD_READ_FROM_CACHE_DUAL, 4), + SNAND_OP(SNAND_IO_1_1_4, SNAND_CMD_READ_FROM_CACHE_X4, 8), + SNAND_OP(SNAND_IO_1_4_4, SNAND_CMD_READ_FROM_CACHE_QUAD, 4)); + +static const SNAND_IO_CAP(snand_cap_read_from_cache_quad_q2d, + SPI_IO_1_1_1 | SPI_IO_1_1_2 | SPI_IO_1_2_2 | SPI_IO_1_1_4 | + SPI_IO_1_4_4, + SNAND_OP(SNAND_IO_1_1_1, SNAND_CMD_READ_FROM_CACHE, 8), + SNAND_OP(SNAND_IO_1_1_2, SNAND_CMD_READ_FROM_CACHE_X2, 8), + SNAND_OP(SNAND_IO_1_2_2, SNAND_CMD_READ_FROM_CACHE_DUAL, 4), + SNAND_OP(SNAND_IO_1_1_4, SNAND_CMD_READ_FROM_CACHE_X4, 8), + SNAND_OP(SNAND_IO_1_4_4, SNAND_CMD_READ_FROM_CACHE_QUAD, 2)); + +static const SNAND_IO_CAP(snand_cap_read_from_cache_quad_a8d, + SPI_IO_1_1_1 | SPI_IO_1_1_2 | SPI_IO_1_2_2 | SPI_IO_1_1_4 | + SPI_IO_1_4_4, + SNAND_OP(SNAND_IO_1_1_1, SNAND_CMD_READ_FROM_CACHE, 8), + SNAND_OP(SNAND_IO_1_1_2, SNAND_CMD_READ_FROM_CACHE_X2, 8), + SNAND_OP(SNAND_IO_1_2_2, SNAND_CMD_READ_FROM_CACHE_DUAL, 8), + SNAND_OP(SNAND_IO_1_1_4, SNAND_CMD_READ_FROM_CACHE_X4, 8), + SNAND_OP(SNAND_IO_1_4_4, SNAND_CMD_READ_FROM_CACHE_QUAD, 8)); + +static const SNAND_IO_CAP(snand_cap_read_from_cache_x4, + SPI_IO_1_1_1 | SPI_IO_1_1_2 | SPI_IO_1_1_4, + SNAND_OP(SNAND_IO_1_1_1, SNAND_CMD_READ_FROM_CACHE, 8), + SNAND_OP(SNAND_IO_1_1_2, SNAND_CMD_READ_FROM_CACHE_X2, 8), + SNAND_OP(SNAND_IO_1_1_4, SNAND_CMD_READ_FROM_CACHE_X4, 8)); + +static const SNAND_IO_CAP(snand_cap_read_from_cache_x4_only, + SPI_IO_1_1_1 | SPI_IO_1_1_4, + SNAND_OP(SNAND_IO_1_1_1, SNAND_CMD_READ_FROM_CACHE, 8), + SNAND_OP(SNAND_IO_1_1_4, SNAND_CMD_READ_FROM_CACHE_X4, 8)); + +static const SNAND_IO_CAP(snand_cap_program_load_x1, + SPI_IO_1_1_1, + SNAND_OP(SNAND_IO_1_1_1, SNAND_CMD_PROGRAM_LOAD, 0)); + +static const SNAND_IO_CAP(snand_cap_program_load_x4, + SPI_IO_1_1_1 | SPI_IO_1_1_4, + SNAND_OP(SNAND_IO_1_1_1, SNAND_CMD_PROGRAM_LOAD, 0), + SNAND_OP(SNAND_IO_1_1_4, SNAND_CMD_PROGRAM_LOAD_X4, 0)); + +static const struct snand_flash_info snand_flash_ids[] = { + SNAND_INFO("W25N512GV", SNAND_ID(SNAND_ID_DYMMY, 0xef, 0xaa, 0x20), + SNAND_MEMORG_512M_2K_64, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + SNAND_INFO("W25N01GV", SNAND_ID(SNAND_ID_DYMMY, 0xef, 0xaa, 0x21), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + SNAND_INFO("W25M02GV", SNAND_ID(SNAND_ID_DYMMY, 0xef, 0xab, 0x21), + SNAND_MEMORG_2G_2K_64_2D, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4, + mtk_snand_winbond_select_die), + SNAND_INFO("W25N02KV", SNAND_ID(SNAND_ID_DYMMY, 0xef, 0xaa, 0x22), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + + SNAND_INFO("GD5F1GQ4UAWxx", SNAND_ID(SNAND_ID_ADDR, 0xc8, 0x10), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F1GQ4UExIG", SNAND_ID(SNAND_ID_ADDR, 0xc8, 0xd1), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F1GQ4UExxH", SNAND_ID(SNAND_ID_ADDR, 0xc8, 0xd9), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F1GQ4xAYIG", SNAND_ID(SNAND_ID_ADDR, 0xc8, 0xf1), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F2GQ4UExIG", SNAND_ID(SNAND_ID_ADDR, 0xc8, 0xd2), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F2GQ5UExxH", SNAND_ID(SNAND_ID_ADDR, 0xc8, 0x32), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_a8d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F2GQ4xAYIG", SNAND_ID(SNAND_ID_ADDR, 0xc8, 0xf2), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F4GQ4UBxIG", SNAND_ID(SNAND_ID_ADDR, 0xc8, 0xd4), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F4GQ4xAYIG", SNAND_ID(SNAND_ID_ADDR, 0xc8, 0xf4), + SNAND_MEMORG_4G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F2GQ5UExxG", SNAND_ID(SNAND_ID_DYMMY, 0xc8, 0x52), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("GD5F4GQ4UCxIG", SNAND_ID(SNAND_ID_DYMMY, 0xc8, 0xb4), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + + SNAND_INFO("MX35LF1GE4AB", SNAND_ID(SNAND_ID_DYMMY, 0xc2, 0x12), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("MX35LF1G24AD", SNAND_ID(SNAND_ID_DYMMY, 0xc2, 0x14), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + SNAND_INFO("MX31LF1GE4BC", SNAND_ID(SNAND_ID_DYMMY, 0xc2, 0x1e), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("MX35LF2GE4AB", SNAND_ID(SNAND_ID_DYMMY, 0xc2, 0x22), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("MX35LF2G24AD", SNAND_ID(SNAND_ID_DYMMY, 0xc2, 0x24), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + SNAND_INFO("MX35LF2GE4AD", SNAND_ID(SNAND_ID_DYMMY, 0xc2, 0x26), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("MX35LF2G14AC", SNAND_ID(SNAND_ID_DYMMY, 0xc2, 0x20), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("MX35LF4G24AD", SNAND_ID(SNAND_ID_DYMMY, 0xc2, 0x35), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + SNAND_INFO("MX35LF4GE4AD", SNAND_ID(SNAND_ID_DYMMY, 0xc2, 0x37), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + + SNAND_INFO("MT29F1G01AAADD", SNAND_ID(SNAND_ID_DYMMY, 0x2c, 0x12), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x1), + SNAND_INFO("MT29F1G01ABAFD", SNAND_ID(SNAND_ID_DYMMY, 0x2c, 0x14), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + SNAND_INFO("MT29F2G01AAAED", SNAND_ID(SNAND_ID_DYMMY, 0x2c, 0x9f), + SNAND_MEMORG_2G_2K_64_2P, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x1), + SNAND_INFO("MT29F2G01ABAGD", SNAND_ID(SNAND_ID_DYMMY, 0x2c, 0x24), + SNAND_MEMORG_2G_2K_128_2P, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + SNAND_INFO("MT29F4G01AAADD", SNAND_ID(SNAND_ID_DYMMY, 0x2c, 0x32), + SNAND_MEMORG_4G_2K_64_2P, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x1), + SNAND_INFO("MT29F4G01ABAFD", SNAND_ID(SNAND_ID_DYMMY, 0x2c, 0x34), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + SNAND_INFO("MT29F4G01ADAGD", SNAND_ID(SNAND_ID_DYMMY, 0x2c, 0x36), + SNAND_MEMORG_4G_2K_128_2P_2D, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4, + mtk_snand_micron_select_die), + SNAND_INFO("MT29F8G01ADAFD", SNAND_ID(SNAND_ID_DYMMY, 0x2c, 0x46), + SNAND_MEMORG_8G_4K_256_2D, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4, + mtk_snand_micron_select_die), + + SNAND_INFO("TC58CVG0S3HRAIG", SNAND_ID(SNAND_ID_DYMMY, 0x98, 0xc2), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x1), + SNAND_INFO("TC58CVG1S3HRAIG", SNAND_ID(SNAND_ID_DYMMY, 0x98, 0xcb), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x1), + SNAND_INFO("TC58CVG2S0HRAIG", SNAND_ID(SNAND_ID_DYMMY, 0x98, 0xcd), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x1), + SNAND_INFO("TC58CVG0S3HRAIJ", SNAND_ID(SNAND_ID_DYMMY, 0x98, 0xe2), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("TC58CVG1S3HRAIJ", SNAND_ID(SNAND_ID_DYMMY, 0x98, 0xeb), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("TC58CVG2S0HRAIJ", SNAND_ID(SNAND_ID_DYMMY, 0x98, 0xed), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("TH58CVG3S0HRAIJ", SNAND_ID(SNAND_ID_DYMMY, 0x98, 0xe4), + SNAND_MEMORG_8G_4K_256, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + + SNAND_INFO("F50L512M41A", SNAND_ID(SNAND_ID_DYMMY, 0xc8, 0x20), + SNAND_MEMORG_512M_2K_64, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("F50L1G41A", SNAND_ID(SNAND_ID_DYMMY, 0xc8, 0x21), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + SNAND_INFO("F50L1G41LB", SNAND_ID(SNAND_ID_DYMMY, 0xc8, 0x01), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4), + SNAND_INFO("F50L2G41LB", SNAND_ID(SNAND_ID_DYMMY, 0xc8, 0x0a), + SNAND_MEMORG_2G_2K_64_2D, + &snand_cap_read_from_cache_quad, + &snand_cap_program_load_x4, + mtk_snand_winbond_select_die), + + SNAND_INFO("CS11G0T0A0AA", SNAND_ID(SNAND_ID_DYMMY, 0x6b, 0x00), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("CS11G0G0A0AA", SNAND_ID(SNAND_ID_DYMMY, 0x6b, 0x10), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("CS11G0S0A0AA", SNAND_ID(SNAND_ID_DYMMY, 0x6b, 0x20), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("CS11G1T0A0AA", SNAND_ID(SNAND_ID_DYMMY, 0x6b, 0x01), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("CS11G1S0A0AA", SNAND_ID(SNAND_ID_DYMMY, 0x6b, 0x21), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("CS11G2T0A0AA", SNAND_ID(SNAND_ID_DYMMY, 0x6b, 0x02), + SNAND_MEMORG_4G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("CS11G2S0A0AA", SNAND_ID(SNAND_ID_DYMMY, 0x6b, 0x22), + SNAND_MEMORG_4G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + + SNAND_INFO("EM73B044VCA", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x01), + SNAND_MEMORG_512M_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044SNB", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x11), + SNAND_MEMORG_1G_2K_120, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044SNF", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x09), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044VCA", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x18), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044SNA", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x19), + SNAND_MEMORG(2048, 64, 128, 512, 1, 1), + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044VCD", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x1c), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044SND", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x1d), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044SND", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x1e), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044VCC", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x22), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044VCF", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x25), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044SNC", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x31), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044SNC", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x0a), + SNAND_MEMORG_2G_2K_120, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044SNA", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x12), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044SNF", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x10), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044VCA", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x13), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044VCB", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x14), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044VCD", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x17), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044VCH", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x1b), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044SND", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x1d), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044VCG", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x1f), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044VCE", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x20), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044VCL", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x2e), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044SNB", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x32), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73E044SNA", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x03), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73E044SND", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x0b), + SNAND_MEMORG_4G_4K_240, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73E044SNB", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x23), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73E044VCA", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x2c), + SNAND_MEMORG_4G_4K_256, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73E044VCB", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x2f), + SNAND_MEMORG_4G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73F044SNA", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x24), + SNAND_MEMORG_8G_4K_256, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73F044VCA", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x2d), + SNAND_MEMORG_8G_4K_256, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73E044SNE", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x0e), + SNAND_MEMORG_8G_4K_256, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73C044SNG", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x0c), + SNAND_MEMORG_1G_2K_120, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("EM73D044VCN", SNAND_ID(SNAND_ID_DYMMY, 0xd5, 0x0f), + SNAND_MEMORG_2G_2K_64, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + + SNAND_INFO("FM35Q1GA", SNAND_ID(SNAND_ID_DYMMY, 0xe5, 0x71), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + + SNAND_INFO("PN26G01A", SNAND_ID(SNAND_ID_DYMMY, 0xa1, 0xe1), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("PN26G02A", SNAND_ID(SNAND_ID_DYMMY, 0xa1, 0xe2), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + + SNAND_INFO("IS37SML01G1", SNAND_ID(SNAND_ID_DYMMY, 0xc8, 0x21), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_x4, + &snand_cap_program_load_x4), + + SNAND_INFO("ATO25D1GA", SNAND_ID(SNAND_ID_DYMMY, 0x9b, 0x12), + SNAND_MEMORG_1G_2K_64, + &snand_cap_read_from_cache_x4_only, + &snand_cap_program_load_x4), + + SNAND_INFO("HYF1GQ4U", SNAND_ID(SNAND_ID_DYMMY, 0xc9, 0x51), + SNAND_MEMORG_1G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), + SNAND_INFO("HYF2GQ4U", SNAND_ID(SNAND_ID_DYMMY, 0xc9, 0x52), + SNAND_MEMORG_2G_2K_128, + &snand_cap_read_from_cache_quad_q2d, + &snand_cap_program_load_x4), +}; + +static int mtk_snand_winbond_select_die(struct mtk_snand *snf, uint32_t dieidx) +{ + uint8_t op[2]; + + if (dieidx > 1) { + snand_log_chip(snf->pdev, "Invalid die index %u\n", dieidx); + return -EINVAL; + } + + op[0] = SNAND_CMD_WINBOND_SELECT_DIE; + op[1] = (uint8_t)dieidx; + + return mtk_snand_mac_io(snf, op, sizeof(op), NULL, 0); +} + +static int mtk_snand_micron_select_die(struct mtk_snand *snf, uint32_t dieidx) +{ + int ret; + + if (dieidx > 1) { + snand_log_chip(snf->pdev, "Invalid die index %u\n", dieidx); + return -EINVAL; + } + + ret = mtk_snand_set_feature(snf, SNAND_FEATURE_MICRON_DIE_ADDR, + SNAND_MICRON_DIE_SEL_1); + if (ret) { + snand_log_chip(snf->pdev, + "Failed to set die selection feature\n"); + return ret; + } + + return 0; +} + +const struct snand_flash_info *snand_flash_id_lookup(enum snand_id_type type, + const uint8_t *id) +{ + const struct snand_id *fid; + uint32_t i; + + for (i = 0; i < ARRAY_SIZE(snand_flash_ids); i++) { + if (snand_flash_ids[i].id.type != type) + continue; + + fid = &snand_flash_ids[i].id; + if (memcmp(fid->id, id, fid->len)) + continue; + + return &snand_flash_ids[i]; + } + + return NULL; +} diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-mtd.c b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-mtd.c new file mode 100644 index 0000000000..b0fcda446d --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-mtd.c @@ -0,0 +1,677 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao <weijie.gao@mediatek.com> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/mutex.h> +#include <linux/clk.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/dma-mapping.h> +#include <linux/wait.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/of_platform.h> + +#include "mtk-snand.h" +#include "mtk-snand-os.h" + +struct mtk_snand_of_id { + enum mtk_snand_soc soc; +}; + +struct mtk_snand_mtd { + struct mtk_snand_plat_dev pdev; + + struct clk *nfi_clk; + struct clk *pad_clk; + struct clk *ecc_clk; + + void __iomem *nfi_regs; + void __iomem *ecc_regs; + + int irq; + + bool quad_spi; + enum mtk_snand_soc soc; + + struct mtd_info mtd; + struct mtk_snand *snf; + struct mtk_snand_chip_info cinfo; + uint8_t *page_cache; + struct mutex lock; +}; + +#define mtd_to_msm(mtd) container_of(mtd, struct mtk_snand_mtd, mtd) + +static int mtk_snand_mtd_erase(struct mtd_info *mtd, struct erase_info *instr) +{ + struct mtk_snand_mtd *msm = mtd_to_msm(mtd); + u64 start_addr, end_addr; + int ret; + + /* Do not allow write past end of device */ + if ((instr->addr + instr->len) > mtd->size) { + dev_err(msm->pdev.dev, + "attempt to erase beyond end of device\n"); + return -EINVAL; + } + + start_addr = instr->addr & (~mtd->erasesize_mask); + end_addr = instr->addr + instr->len; + if (end_addr & mtd->erasesize_mask) { + end_addr = (end_addr + mtd->erasesize_mask) & + (~mtd->erasesize_mask); + } + + mutex_lock(&msm->lock); + + while (start_addr < end_addr) { + if (mtk_snand_block_isbad(msm->snf, start_addr)) { + instr->fail_addr = start_addr; + ret = -EIO; + break; + } + + ret = mtk_snand_erase_block(msm->snf, start_addr); + if (ret) { + instr->fail_addr = start_addr; + break; + } + + start_addr += mtd->erasesize; + } + + mutex_unlock(&msm->lock); + + return ret; +} + +static int mtk_snand_mtd_read_data(struct mtk_snand_mtd *msm, uint64_t addr, + struct mtd_oob_ops *ops) +{ + struct mtd_info *mtd = &msm->mtd; + size_t len, ooblen, maxooblen, chklen; + uint32_t col, ooboffs; + uint8_t *datcache, *oobcache; + bool ecc_failed = false, raw = ops->mode == MTD_OPS_RAW ? true : false; + int ret, max_bitflips = 0; + + col = addr & mtd->writesize_mask; + addr &= ~mtd->writesize_mask; + maxooblen = mtd_oobavail(mtd, ops); + ooboffs = ops->ooboffs; + ooblen = ops->ooblen; + len = ops->len; + + datcache = len ? msm->page_cache : NULL; + oobcache = ooblen ? msm->page_cache + mtd->writesize : NULL; + + ops->oobretlen = 0; + ops->retlen = 0; + + while (len || ooblen) { + if (ops->mode == MTD_OPS_AUTO_OOB) + ret = mtk_snand_read_page_auto_oob(msm->snf, addr, + datcache, oobcache, maxooblen, NULL, raw); + else + ret = mtk_snand_read_page(msm->snf, addr, datcache, + oobcache, raw); + + if (ret < 0 && ret != -EBADMSG) + return ret; + + if (ret == -EBADMSG) { + mtd->ecc_stats.failed++; + ecc_failed = true; + } else { + mtd->ecc_stats.corrected += ret; + max_bitflips = max_t(int, ret, max_bitflips); + } + + if (len) { + /* Move data */ + chklen = mtd->writesize - col; + if (chklen > len) + chklen = len; + + memcpy(ops->datbuf + ops->retlen, datcache + col, + chklen); + len -= chklen; + col = 0; /* (col + chklen) % */ + ops->retlen += chklen; + } + + if (ooblen) { + /* Move oob */ + chklen = maxooblen - ooboffs; + if (chklen > ooblen) + chklen = ooblen; + + memcpy(ops->oobbuf + ops->oobretlen, oobcache + ooboffs, + chklen); + ooblen -= chklen; + ooboffs = 0; /* (ooboffs + chklen) % maxooblen; */ + ops->oobretlen += chklen; + } + + addr += mtd->writesize; + } + + return ecc_failed ? -EBADMSG : max_bitflips; +} + +static int mtk_snand_mtd_read_oob(struct mtd_info *mtd, loff_t from, + struct mtd_oob_ops *ops) +{ + struct mtk_snand_mtd *msm = mtd_to_msm(mtd); + uint32_t maxooblen; + int ret; + + if (!ops->oobbuf && !ops->datbuf) { + if (ops->ooblen || ops->len) + return -EINVAL; + + return 0; + } + + switch (ops->mode) { + case MTD_OPS_PLACE_OOB: + case MTD_OPS_AUTO_OOB: + case MTD_OPS_RAW: + break; + default: + dev_err(msm->pdev.dev, "unsupported oob mode: %u\n", ops->mode); + return -EINVAL; + } + + maxooblen = mtd_oobavail(mtd, ops); + + /* Do not allow read past end of device */ + if (ops->datbuf && (from + ops->len) > mtd->size) { + dev_err(msm->pdev.dev, + "attempt to read beyond end of device\n"); + return -EINVAL; + } + + if (unlikely(ops->ooboffs >= maxooblen)) { + dev_err(msm->pdev.dev, "attempt to start read outside oob\n"); + return -EINVAL; + } + + if (unlikely(from >= mtd->size || + ops->ooboffs + ops->ooblen > ((mtd->size >> mtd->writesize_shift) - + (from >> mtd->writesize_shift)) * maxooblen)) { + dev_err(msm->pdev.dev, + "attempt to read beyond end of device\n"); + return -EINVAL; + } + + mutex_lock(&msm->lock); + ret = mtk_snand_mtd_read_data(msm, from, ops); + mutex_unlock(&msm->lock); + + return ret; +} + +static int mtk_snand_mtd_write_data(struct mtk_snand_mtd *msm, uint64_t addr, + struct mtd_oob_ops *ops) +{ + struct mtd_info *mtd = &msm->mtd; + size_t len, ooblen, maxooblen, chklen, oobwrlen; + uint32_t col, ooboffs; + uint8_t *datcache, *oobcache; + bool raw = ops->mode == MTD_OPS_RAW ? true : false; + int ret; + + col = addr & mtd->writesize_mask; + addr &= ~mtd->writesize_mask; + maxooblen = mtd_oobavail(mtd, ops); + ooboffs = ops->ooboffs; + ooblen = ops->ooblen; + len = ops->len; + + datcache = len ? msm->page_cache : NULL; + oobcache = ooblen ? msm->page_cache + mtd->writesize : NULL; + + ops->oobretlen = 0; + ops->retlen = 0; + + while (len || ooblen) { + if (len) { + /* Move data */ + chklen = mtd->writesize - col; + if (chklen > len) + chklen = len; + + memset(datcache, 0xff, col); + memcpy(datcache + col, ops->datbuf + ops->retlen, + chklen); + memset(datcache + col + chklen, 0xff, + mtd->writesize - col - chklen); + len -= chklen; + col = 0; /* (col + chklen) % */ + ops->retlen += chklen; + } + + oobwrlen = 0; + if (ooblen) { + /* Move oob */ + chklen = maxooblen - ooboffs; + if (chklen > ooblen) + chklen = ooblen; + + memset(oobcache, 0xff, ooboffs); + memcpy(oobcache + ooboffs, + ops->oobbuf + ops->oobretlen, chklen); + memset(oobcache + ooboffs + chklen, 0xff, + mtd->oobsize - ooboffs - chklen); + oobwrlen = chklen + ooboffs; + ooblen -= chklen; + ooboffs = 0; /* (ooboffs + chklen) % maxooblen; */ + ops->oobretlen += chklen; + } + + if (ops->mode == MTD_OPS_AUTO_OOB) + ret = mtk_snand_write_page_auto_oob(msm->snf, addr, + datcache, oobcache, oobwrlen, NULL, raw); + else + ret = mtk_snand_write_page(msm->snf, addr, datcache, + oobcache, raw); + + if (ret) + return ret; + + addr += mtd->writesize; + } + + return 0; +} + +static int mtk_snand_mtd_write_oob(struct mtd_info *mtd, loff_t to, + struct mtd_oob_ops *ops) +{ + struct mtk_snand_mtd *msm = mtd_to_msm(mtd); + uint32_t maxooblen; + int ret; + + if (!ops->oobbuf && !ops->datbuf) { + if (ops->ooblen || ops->len) + return -EINVAL; + + return 0; + } + + switch (ops->mode) { + case MTD_OPS_PLACE_OOB: + case MTD_OPS_AUTO_OOB: + case MTD_OPS_RAW: + break; + default: + dev_err(msm->pdev.dev, "unsupported oob mode: %u\n", ops->mode); + return -EINVAL; + } + + maxooblen = mtd_oobavail(mtd, ops); + + /* Do not allow write past end of device */ + if (ops->datbuf && (to + ops->len) > mtd->size) { + dev_err(msm->pdev.dev, + "attempt to write beyond end of device\n"); + return -EINVAL; + } + + if (unlikely(ops->ooboffs >= maxooblen)) { + dev_err(msm->pdev.dev, + "attempt to start write outside oob\n"); + return -EINVAL; + } + + if (unlikely(to >= mtd->size || + ops->ooboffs + ops->ooblen > ((mtd->size >> mtd->writesize_shift) - + (to >> mtd->writesize_shift)) * maxooblen)) { + dev_err(msm->pdev.dev, + "attempt to write beyond end of device\n"); + return -EINVAL; + } + + mutex_lock(&msm->lock); + ret = mtk_snand_mtd_write_data(msm, to, ops); + mutex_unlock(&msm->lock); + + return ret; +} + +static int mtk_snand_mtd_block_isbad(struct mtd_info *mtd, loff_t offs) +{ + struct mtk_snand_mtd *msm = mtd_to_msm(mtd); + int ret; + + mutex_lock(&msm->lock); + ret = mtk_snand_block_isbad(msm->snf, offs); + mutex_unlock(&msm->lock); + + return ret; +} + +static int mtk_snand_mtd_block_markbad(struct mtd_info *mtd, loff_t offs) +{ + struct mtk_snand_mtd *msm = mtd_to_msm(mtd); + int ret; + + mutex_lock(&msm->lock); + ret = mtk_snand_block_markbad(msm->snf, offs); + mutex_unlock(&msm->lock); + + return ret; +} + +static int mtk_snand_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobecc) +{ + struct mtk_snand_mtd *msm = mtd_to_msm(mtd); + + if (section) + return -ERANGE; + + oobecc->offset = msm->cinfo.fdm_size * msm->cinfo.num_sectors; + oobecc->length = mtd->oobsize - oobecc->offset; + + return 0; +} + +static int mtk_snand_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobfree) +{ + struct mtk_snand_mtd *msm = mtd_to_msm(mtd); + + if (section >= msm->cinfo.num_sectors) + return -ERANGE; + + oobfree->length = msm->cinfo.fdm_size - 1; + oobfree->offset = section * msm->cinfo.fdm_size + 1; + + return 0; +} + +static irqreturn_t mtk_snand_irq(int irq, void *id) +{ + struct mtk_snand_mtd *msm = id; + int ret; + + ret = mtk_snand_irq_process(msm->snf); + if (ret > 0) + return IRQ_HANDLED; + + return IRQ_NONE; +} + +static int mtk_snand_enable_clk(struct mtk_snand_mtd *msm) +{ + int ret; + + ret = clk_prepare_enable(msm->nfi_clk); + if (ret) { + dev_err(msm->pdev.dev, "unable to enable nfi clk\n"); + return ret; + } + + ret = clk_prepare_enable(msm->pad_clk); + if (ret) { + dev_err(msm->pdev.dev, "unable to enable pad clk\n"); + clk_disable_unprepare(msm->nfi_clk); + return ret; + } + + ret = clk_prepare_enable(msm->ecc_clk); + if (ret) { + dev_err(msm->pdev.dev, "unable to enable ecc clk\n"); + clk_disable_unprepare(msm->nfi_clk); + clk_disable_unprepare(msm->pad_clk); + return ret; + } + + return 0; +} + +static void mtk_snand_disable_clk(struct mtk_snand_mtd *msm) +{ + clk_disable_unprepare(msm->nfi_clk); + clk_disable_unprepare(msm->pad_clk); + clk_disable_unprepare(msm->ecc_clk); +} + +static const struct mtd_ooblayout_ops mtk_snand_ooblayout = { + .ecc = mtk_snand_ooblayout_ecc, + .free = mtk_snand_ooblayout_free, +}; + +static struct mtk_snand_of_id mt7622_soc_id = { .soc = SNAND_SOC_MT7622 }; +static struct mtk_snand_of_id mt7629_soc_id = { .soc = SNAND_SOC_MT7629 }; + +static const struct of_device_id mtk_snand_ids[] = { + { .compatible = "mediatek,mt7622-snand", .data = &mt7622_soc_id }, + { .compatible = "mediatek,mt7629-snand", .data = &mt7629_soc_id }, + { }, +}; + +MODULE_DEVICE_TABLE(of, mtk_snand_ids); + +static int mtk_snand_probe(struct platform_device *pdev) +{ + struct mtk_snand_platdata mtk_snand_pdata = {}; + struct device_node *np = pdev->dev.of_node; + const struct of_device_id *of_soc_id; + const struct mtk_snand_of_id *soc_id; + struct mtk_snand_mtd *msm; + struct mtd_info *mtd; + struct resource *r; + uint32_t size; + int ret; + + of_soc_id = of_match_node(mtk_snand_ids, np); + if (!of_soc_id) + return -EINVAL; + + soc_id = of_soc_id->data; + + msm = devm_kzalloc(&pdev->dev, sizeof(*msm), GFP_KERNEL); + if (!msm) + return -ENOMEM; + + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nfi"); + msm->nfi_regs = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(msm->nfi_regs)) { + ret = PTR_ERR(msm->nfi_regs); + goto errout1; + } + + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ecc"); + msm->ecc_regs = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(msm->ecc_regs)) { + ret = PTR_ERR(msm->ecc_regs); + goto errout1; + } + + msm->pdev.dev = &pdev->dev; + msm->quad_spi = of_property_read_bool(np, "mediatek,quad-spi"); + msm->soc = soc_id->soc; + + msm->nfi_clk = devm_clk_get(msm->pdev.dev, "nfi_clk"); + if (IS_ERR(msm->nfi_clk)) { + ret = PTR_ERR(msm->nfi_clk); + dev_err(msm->pdev.dev, "unable to get nfi_clk, err = %d\n", + ret); + goto errout1; + } + + msm->ecc_clk = devm_clk_get(msm->pdev.dev, "ecc_clk"); + if (IS_ERR(msm->ecc_clk)) { + ret = PTR_ERR(msm->ecc_clk); + dev_err(msm->pdev.dev, "unable to get ecc_clk, err = %d\n", + ret); + goto errout1; + } + + msm->pad_clk = devm_clk_get(msm->pdev.dev, "pad_clk"); + if (IS_ERR(msm->pad_clk)) { + ret = PTR_ERR(msm->pad_clk); + dev_err(msm->pdev.dev, "unable to get pad_clk, err = %d\n", + ret); + goto errout1; + } + + ret = mtk_snand_enable_clk(msm); + if (ret) + goto errout1; + + /* Probe SPI-NAND Flash */ + mtk_snand_pdata.soc = msm->soc; + mtk_snand_pdata.quad_spi = msm->quad_spi; + mtk_snand_pdata.nfi_base = msm->nfi_regs; + mtk_snand_pdata.ecc_base = msm->ecc_regs; + + ret = mtk_snand_init(&msm->pdev, &mtk_snand_pdata, &msm->snf); + if (ret) + goto errout1; + + msm->irq = platform_get_irq(pdev, 0); + if (msm->irq >= 0) { + ret = devm_request_irq(msm->pdev.dev, msm->irq, mtk_snand_irq, + 0x0, "mtk-snand", msm); + if (ret) { + dev_err(msm->pdev.dev, "failed to request snfi irq\n"); + goto errout2; + } + + ret = dma_set_mask(msm->pdev.dev, DMA_BIT_MASK(32)); + if (ret) { + dev_err(msm->pdev.dev, "failed to set dma mask\n"); + goto errout3; + } + } + + mtk_snand_get_chip_info(msm->snf, &msm->cinfo); + + size = msm->cinfo.pagesize + msm->cinfo.sparesize; + msm->page_cache = devm_kmalloc(msm->pdev.dev, size, GFP_KERNEL); + if (!msm->page_cache) { + dev_err(msm->pdev.dev, "failed to allocate page cache\n"); + ret = -ENOMEM; + goto errout3; + } + + mutex_init(&msm->lock); + + dev_info(msm->pdev.dev, + "chip is %s, size %lluMB, page size %u, oob size %u\n", + msm->cinfo.model, msm->cinfo.chipsize >> 20, + msm->cinfo.pagesize, msm->cinfo.sparesize); + + /* Initialize mtd for SPI-NAND */ + mtd = &msm->mtd; + + mtd->owner = THIS_MODULE; + mtd->dev.parent = &pdev->dev; + mtd->type = MTD_NANDFLASH; + mtd->flags = MTD_CAP_NANDFLASH; + + mtd_set_of_node(mtd, np); + + mtd->size = msm->cinfo.chipsize; + mtd->erasesize = msm->cinfo.blocksize; + mtd->writesize = msm->cinfo.pagesize; + mtd->writebufsize = mtd->writesize; + mtd->oobsize = msm->cinfo.sparesize; + mtd->oobavail = msm->cinfo.num_sectors * (msm->cinfo.fdm_size - 1); + + mtd->erasesize_shift = ffs(mtd->erasesize) - 1; + mtd->writesize_shift = ffs(mtd->writesize) - 1; + mtd->erasesize_mask = (1 << mtd->erasesize_shift) - 1; + mtd->writesize_mask = (1 << mtd->writesize_shift) - 1; + + mtd->ooblayout = &mtk_snand_ooblayout; + + mtd->ecc_strength = msm->cinfo.ecc_strength; + mtd->bitflip_threshold = (mtd->ecc_strength * 3) / 4; + mtd->ecc_step_size = msm->cinfo.sector_size; + + mtd->_erase = mtk_snand_mtd_erase; + mtd->_read_oob = mtk_snand_mtd_read_oob; + mtd->_write_oob = mtk_snand_mtd_write_oob; + mtd->_block_isbad = mtk_snand_mtd_block_isbad; + mtd->_block_markbad = mtk_snand_mtd_block_markbad; + + ret = mtd_device_register(mtd, NULL, 0); + if (ret) { + dev_err(msm->pdev.dev, "failed to register mtd partition\n"); + goto errout4; + } + + platform_set_drvdata(pdev, msm); + + return 0; + +errout4: + devm_kfree(msm->pdev.dev, msm->page_cache); + +errout3: + if (msm->irq >= 0) + devm_free_irq(msm->pdev.dev, msm->irq, msm); + +errout2: + mtk_snand_cleanup(msm->snf); + +errout1: + devm_kfree(msm->pdev.dev, msm); + + platform_set_drvdata(pdev, NULL); + + return ret; +} + +static int mtk_snand_remove(struct platform_device *pdev) +{ + struct mtk_snand_mtd *msm = platform_get_drvdata(pdev); + struct mtd_info *mtd = &msm->mtd; + int ret; + + ret = mtd_device_unregister(mtd); + if (ret) + return ret; + + mtk_snand_cleanup(msm->snf); + + if (msm->irq >= 0) + devm_free_irq(msm->pdev.dev, msm->irq, msm); + + mtk_snand_disable_clk(msm); + + devm_kfree(msm->pdev.dev, msm->page_cache); + devm_kfree(msm->pdev.dev, msm); + + platform_set_drvdata(pdev, NULL); + + return 0; +} + +static struct platform_driver mtk_snand_driver = { + .probe = mtk_snand_probe, + .remove = mtk_snand_remove, + .driver = { + .name = "mtk-snand", + .of_match_table = mtk_snand_ids, + }, +}; + +module_platform_driver(mtk_snand_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Weijie Gao <weijie.gao@mediatek.com>"); +MODULE_DESCRIPTION("MeidaTek SPI-NAND Flash Controller Driver"); diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-os.c b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-os.c new file mode 100644 index 0000000000..0c3ffec8b4 --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-os.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao <weijie.gao@mediatek.com> + */ + +#include "mtk-snand-def.h" + +int mtk_snand_log(struct mtk_snand_plat_dev *pdev, + enum mtk_snand_log_category cat, const char *fmt, ...) +{ + const char *catname = ""; + va_list ap; + char *msg; + + switch (cat) { + case SNAND_LOG_NFI: + catname = "NFI"; + break; + case SNAND_LOG_SNFI: + catname = "SNFI"; + break; + case SNAND_LOG_ECC: + catname = "ECC"; + break; + default: + break; + } + + va_start(ap, fmt); + msg = kvasprintf(GFP_KERNEL, fmt, ap); + va_end(ap); + + if (!msg) { + dev_warn(pdev->dev, "unable to print log\n"); + return -1; + } + + if (*catname) + dev_warn(pdev->dev, "%s: %s", catname, msg); + else + dev_warn(pdev->dev, "%s", msg); + + kfree(msg); + + return 0; +} diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-os.h b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-os.h new file mode 100644 index 0000000000..eeeb83b53d --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand-os.h @@ -0,0 +1,127 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao <weijie.gao@mediatek.com> + */ + +#ifndef _MTK_SNAND_OS_H_ +#define _MTK_SNAND_OS_H_ + +#include <linux/slab.h> +#include <linux/kernel.h> +#include <linux/limits.h> +#include <linux/types.h> +#include <linux/bitops.h> +#include <linux/sizes.h> +#include <linux/iopoll.h> +#include <linux/hrtimer.h> +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <linux/io.h> +#include <asm/div64.h> + +struct mtk_snand_plat_dev { + struct device *dev; + struct completion done; +}; + +/* Polling helpers */ +#define read16_poll_timeout(addr, val, cond, sleep_us, timeout_us) \ + readw_poll_timeout((addr), (val), (cond), (sleep_us), (timeout_us)) + +#define read32_poll_timeout(addr, val, cond, sleep_us, timeout_us) \ + readl_poll_timeout((addr), (val), (cond), (sleep_us), (timeout_us)) + +/* Timer helpers */ +#define mtk_snand_time_t ktime_t + +static inline mtk_snand_time_t timer_get_ticks(void) +{ + return ktime_get(); +} + +static inline mtk_snand_time_t timer_time_to_tick(uint32_t timeout_us) +{ + return ktime_add_us(ktime_set(0, 0), timeout_us); +} + +static inline bool timer_is_timeout(mtk_snand_time_t start_tick, + mtk_snand_time_t timeout_tick) +{ + ktime_t tmo = ktime_add(start_tick, timeout_tick); + + return ktime_compare(ktime_get(), tmo) > 0; +} + +/* Memory helpers */ +static inline void *generic_mem_alloc(struct mtk_snand_plat_dev *pdev, + size_t size) +{ + return devm_kzalloc(pdev->dev, size, GFP_KERNEL); +} +static inline void generic_mem_free(struct mtk_snand_plat_dev *pdev, void *ptr) +{ + devm_kfree(pdev->dev, ptr); +} + +static inline void *dma_mem_alloc(struct mtk_snand_plat_dev *pdev, size_t size) +{ + return kzalloc(size, GFP_KERNEL); +} +static inline void dma_mem_free(struct mtk_snand_plat_dev *pdev, void *ptr) +{ + kfree(ptr); +} + +static inline int dma_mem_map(struct mtk_snand_plat_dev *pdev, void *vaddr, + uintptr_t *dma_addr, size_t size, bool to_device) +{ + dma_addr_t addr; + int ret; + + addr = dma_map_single(pdev->dev, vaddr, size, + to_device ? DMA_TO_DEVICE : DMA_FROM_DEVICE); + ret = dma_mapping_error(pdev->dev, addr); + if (ret) + return ret; + + *dma_addr = (uintptr_t)addr; + + return 0; +} + +static inline void dma_mem_unmap(struct mtk_snand_plat_dev *pdev, + uintptr_t dma_addr, size_t size, + bool to_device) +{ + dma_unmap_single(pdev->dev, dma_addr, size, + to_device ? DMA_TO_DEVICE : DMA_FROM_DEVICE); +} + +/* Interrupt helpers */ +static inline void irq_completion_done(struct mtk_snand_plat_dev *pdev) +{ + complete(&pdev->done); +} + +static inline void irq_completion_init(struct mtk_snand_plat_dev *pdev) +{ + init_completion(&pdev->done); +} + +static inline int irq_completion_wait(struct mtk_snand_plat_dev *pdev, + void __iomem *reg, uint32_t bit, + uint32_t timeout_us) +{ + int ret; + + ret = wait_for_completion_timeout(&pdev->done, + usecs_to_jiffies(timeout_us)); + if (!ret) + return -ETIMEDOUT; + + return 0; +} + +#endif /* _MTK_SNAND_OS_H_ */ diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand.c b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand.c new file mode 100644 index 0000000000..729fd82d39 --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand.c @@ -0,0 +1,1862 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao <weijie.gao@mediatek.com> + */ + +#include "mtk-snand-def.h" + +/* NFI registers */ +#define NFI_CNFG 0x000 +#define CNFG_OP_MODE_S 12 +#define CNFG_OP_MODE_CUST 6 +#define CNFG_OP_MODE_PROGRAM 3 +#define CNFG_AUTO_FMT_EN BIT(9) +#define CNFG_HW_ECC_EN BIT(8) +#define CNFG_DMA_BURST_EN BIT(2) +#define CNFG_READ_MODE BIT(1) +#define CNFG_DMA_MODE BIT(0) + +#define NFI_PAGEFMT 0x0004 +#define NFI_SPARE_SIZE_LS_S 16 +#define NFI_FDM_ECC_NUM_S 12 +#define NFI_FDM_NUM_S 8 +#define NFI_SPARE_SIZE_S 4 +#define NFI_SEC_SEL_512 BIT(2) +#define NFI_PAGE_SIZE_S 0 +#define NFI_PAGE_SIZE_512_2K 0 +#define NFI_PAGE_SIZE_2K_4K 1 +#define NFI_PAGE_SIZE_4K_8K 2 +#define NFI_PAGE_SIZE_8K_16K 3 + +#define NFI_CON 0x008 +#define CON_SEC_NUM_S 12 +#define CON_BWR BIT(9) +#define CON_BRD BIT(8) +#define CON_NFI_RST BIT(1) +#define CON_FIFO_FLUSH BIT(0) + +#define NFI_INTR_EN 0x010 +#define NFI_INTR_STA 0x014 +#define NFI_IRQ_INTR_EN BIT(31) +#define NFI_IRQ_CUS_READ BIT(8) +#define NFI_IRQ_CUS_PG BIT(7) + +#define NFI_CMD 0x020 + +#define NFI_STRDATA 0x040 +#define STR_DATA BIT(0) + +#define NFI_STA 0x060 +#define NFI_NAND_FSM GENMASK(28, 24) +#define NFI_FSM GENMASK(19, 16) +#define READ_EMPTY BIT(12) + +#define NFI_FIFOSTA 0x064 +#define FIFO_WR_REMAIN_S 8 +#define FIFO_RD_REMAIN_S 0 + +#define NFI_ADDRCNTR 0x070 +#define SEC_CNTR GENMASK(16, 12) +#define SEC_CNTR_S 12 +#define NFI_SEC_CNTR(val) (((val) & SEC_CNTR) >> SEC_CNTR_S) + +#define NFI_STRADDR 0x080 + +#define NFI_BYTELEN 0x084 +#define BUS_SEC_CNTR(val) (((val) & SEC_CNTR) >> SEC_CNTR_S) + +#define NFI_FDM0L 0x0a0 +#define NFI_FDM0M 0x0a4 +#define NFI_FDML(n) (NFI_FDM0L + (n) * 8) +#define NFI_FDMM(n) (NFI_FDM0M + (n) * 8) + +#define NFI_DEBUG_CON1 0x220 +#define WBUF_EN BIT(2) + +#define NFI_MASTERSTA 0x224 +#define MAS_ADDR GENMASK(11, 9) +#define MAS_RD GENMASK(8, 6) +#define MAS_WR GENMASK(5, 3) +#define MAS_RDDLY GENMASK(2, 0) +#define NFI_MASTERSTA_MASK_7622 (MAS_ADDR | MAS_RD | MAS_WR | MAS_RDDLY) + +/* SNFI registers */ +#define SNF_MAC_CTL 0x500 +#define MAC_XIO_SEL BIT(4) +#define SF_MAC_EN BIT(3) +#define SF_TRIG BIT(2) +#define WIP_READY BIT(1) +#define WIP BIT(0) + +#define SNF_MAC_OUTL 0x504 +#define SNF_MAC_INL 0x508 + +#define SNF_RD_CTL2 0x510 +#define DATA_READ_DUMMY_S 8 +#define DATA_READ_CMD_S 0 + +#define SNF_RD_CTL3 0x514 + +#define SNF_PG_CTL1 0x524 +#define PG_LOAD_CMD_S 8 + +#define SNF_PG_CTL2 0x528 + +#define SNF_MISC_CTL 0x538 +#define SW_RST BIT(28) +#define FIFO_RD_LTC_S 25 +#define PG_LOAD_X4_EN BIT(20) +#define DATA_READ_MODE_S 16 +#define DATA_READ_MODE GENMASK(18, 16) +#define DATA_READ_MODE_X1 0 +#define DATA_READ_MODE_X2 1 +#define DATA_READ_MODE_X4 2 +#define DATA_READ_MODE_DUAL 5 +#define DATA_READ_MODE_QUAD 6 +#define PG_LOAD_CUSTOM_EN BIT(7) +#define DATARD_CUSTOM_EN BIT(6) +#define CS_DESELECT_CYC_S 0 + +#define SNF_MISC_CTL2 0x53c +#define PROGRAM_LOAD_BYTE_NUM_S 16 +#define READ_DATA_BYTE_NUM_S 11 + +#define SNF_DLY_CTL3 0x548 +#define SFCK_SAM_DLY_S 0 + +#define SNF_STA_CTL1 0x550 +#define CUS_PG_DONE BIT(28) +#define CUS_READ_DONE BIT(27) +#define SPI_STATE_S 0 +#define SPI_STATE GENMASK(3, 0) + +#define SNF_CFG 0x55c +#define SPI_MODE BIT(0) + +#define SNF_GPRAM 0x800 +#define SNF_GPRAM_SIZE 0xa0 + +#define SNFI_POLL_INTERVAL 1000000 + +static const uint8_t mt7622_spare_sizes[] = { 16, 26, 27, 28 }; + +static const struct mtk_snand_soc_data mtk_snand_socs[__SNAND_SOC_MAX] = { + [SNAND_SOC_MT7622] = { + .sector_size = 512, + .max_sectors = 8, + .fdm_size = 8, + .fdm_ecc_size = 1, + .fifo_size = 32, + .bbm_swap = false, + .empty_page_check = false, + .mastersta_mask = NFI_MASTERSTA_MASK_7622, + .spare_sizes = mt7622_spare_sizes, + .num_spare_size = ARRAY_SIZE(mt7622_spare_sizes) + }, + [SNAND_SOC_MT7629] = { + .sector_size = 512, + .max_sectors = 8, + .fdm_size = 8, + .fdm_ecc_size = 1, + .fifo_size = 32, + .bbm_swap = true, + .empty_page_check = false, + .mastersta_mask = NFI_MASTERSTA_MASK_7622, + .spare_sizes = mt7622_spare_sizes, + .num_spare_size = ARRAY_SIZE(mt7622_spare_sizes) + }, +}; + +static inline uint32_t nfi_read32(struct mtk_snand *snf, uint32_t reg) +{ + return readl(snf->nfi_base + reg); +} + +static inline void nfi_write32(struct mtk_snand *snf, uint32_t reg, + uint32_t val) +{ + writel(val, snf->nfi_base + reg); +} + +static inline void nfi_write16(struct mtk_snand *snf, uint32_t reg, + uint16_t val) +{ + writew(val, snf->nfi_base + reg); +} + +static inline void nfi_rmw32(struct mtk_snand *snf, uint32_t reg, uint32_t clr, + uint32_t set) +{ + uint32_t val; + + val = readl(snf->nfi_base + reg); + val &= ~clr; + val |= set; + writel(val, snf->nfi_base + reg); +} + +static void nfi_write_data(struct mtk_snand *snf, uint32_t reg, + const uint8_t *data, uint32_t len) +{ + uint32_t i, val = 0, es = sizeof(uint32_t); + + for (i = reg; i < reg + len; i++) { + val |= ((uint32_t)*data++) << (8 * (i % es)); + + if (i % es == es - 1 || i == reg + len - 1) { + nfi_write32(snf, i & ~(es - 1), val); + val = 0; + } + } +} + +static void nfi_read_data(struct mtk_snand *snf, uint32_t reg, uint8_t *data, + uint32_t len) +{ + uint32_t i, val = 0, es = sizeof(uint32_t); + + for (i = reg; i < reg + len; i++) { + if (i == reg || i % es == 0) + val = nfi_read32(snf, i & ~(es - 1)); + + *data++ = (uint8_t)(val >> (8 * (i % es))); + } +} + +static inline void do_bm_swap(uint8_t *bm1, uint8_t *bm2) +{ + uint8_t tmp = *bm1; + *bm1 = *bm2; + *bm2 = tmp; +} + +static void mtk_snand_bm_swap_raw(struct mtk_snand *snf) +{ + uint32_t fdm_bbm_pos; + + if (!snf->nfi_soc->bbm_swap || snf->ecc_steps == 1) + return; + + fdm_bbm_pos = (snf->ecc_steps - 1) * snf->raw_sector_size + + snf->nfi_soc->sector_size; + do_bm_swap(&snf->page_cache[fdm_bbm_pos], + &snf->page_cache[snf->writesize]); +} + +static void mtk_snand_bm_swap(struct mtk_snand *snf) +{ + uint32_t buf_bbm_pos, fdm_bbm_pos; + + if (!snf->nfi_soc->bbm_swap || snf->ecc_steps == 1) + return; + + buf_bbm_pos = snf->writesize - + (snf->ecc_steps - 1) * snf->spare_per_sector; + fdm_bbm_pos = snf->writesize + + (snf->ecc_steps - 1) * snf->nfi_soc->fdm_size; + do_bm_swap(&snf->page_cache[fdm_bbm_pos], + &snf->page_cache[buf_bbm_pos]); +} + +static void mtk_snand_fdm_bm_swap_raw(struct mtk_snand *snf) +{ + uint32_t fdm_bbm_pos1, fdm_bbm_pos2; + + if (!snf->nfi_soc->bbm_swap || snf->ecc_steps == 1) + return; + + fdm_bbm_pos1 = snf->nfi_soc->sector_size; + fdm_bbm_pos2 = (snf->ecc_steps - 1) * snf->raw_sector_size + + snf->nfi_soc->sector_size; + do_bm_swap(&snf->page_cache[fdm_bbm_pos1], + &snf->page_cache[fdm_bbm_pos2]); +} + +static void mtk_snand_fdm_bm_swap(struct mtk_snand *snf) +{ + uint32_t fdm_bbm_pos1, fdm_bbm_pos2; + + if (!snf->nfi_soc->bbm_swap || snf->ecc_steps == 1) + return; + + fdm_bbm_pos1 = snf->writesize; + fdm_bbm_pos2 = snf->writesize + + (snf->ecc_steps - 1) * snf->nfi_soc->fdm_size; + do_bm_swap(&snf->page_cache[fdm_bbm_pos1], + &snf->page_cache[fdm_bbm_pos2]); +} + +static int mtk_nfi_reset(struct mtk_snand *snf) +{ + uint32_t val, fifo_mask; + int ret; + + nfi_write32(snf, NFI_CON, CON_FIFO_FLUSH | CON_NFI_RST); + + ret = read16_poll_timeout(snf->nfi_base + NFI_MASTERSTA, val, + !(val & snf->nfi_soc->mastersta_mask), 0, + SNFI_POLL_INTERVAL); + if (ret) { + snand_log_nfi(snf->pdev, + "NFI master is still busy after reset\n"); + return ret; + } + + ret = read32_poll_timeout(snf->nfi_base + NFI_STA, val, + !(val & (NFI_FSM | NFI_NAND_FSM)), 0, + SNFI_POLL_INTERVAL); + if (ret) { + snand_log_nfi(snf->pdev, "Failed to reset NFI\n"); + return ret; + } + + fifo_mask = ((snf->nfi_soc->fifo_size - 1) << FIFO_RD_REMAIN_S) | + ((snf->nfi_soc->fifo_size - 1) << FIFO_WR_REMAIN_S); + ret = read16_poll_timeout(snf->nfi_base + NFI_FIFOSTA, val, + !(val & fifo_mask), 0, SNFI_POLL_INTERVAL); + if (ret) { + snand_log_nfi(snf->pdev, "NFI FIFOs are not empty\n"); + return ret; + } + + return 0; +} + +static int mtk_snand_mac_reset(struct mtk_snand *snf) +{ + int ret; + uint32_t val; + + nfi_rmw32(snf, SNF_MISC_CTL, 0, SW_RST); + + ret = read32_poll_timeout(snf->nfi_base + SNF_STA_CTL1, val, + !(val & SPI_STATE), 0, SNFI_POLL_INTERVAL); + if (ret) + snand_log_snfi(snf->pdev, "Failed to reset SNFI MAC\n"); + + nfi_write32(snf, SNF_MISC_CTL, (2 << FIFO_RD_LTC_S) | + (10 << CS_DESELECT_CYC_S)); + + return ret; +} + +static int mtk_snand_mac_trigger(struct mtk_snand *snf, uint32_t outlen, + uint32_t inlen) +{ + int ret; + uint32_t val; + + nfi_write32(snf, SNF_MAC_CTL, SF_MAC_EN); + nfi_write32(snf, SNF_MAC_OUTL, outlen); + nfi_write32(snf, SNF_MAC_INL, inlen); + + nfi_write32(snf, SNF_MAC_CTL, SF_MAC_EN | SF_TRIG); + + ret = read32_poll_timeout(snf->nfi_base + SNF_MAC_CTL, val, + val & WIP_READY, 0, SNFI_POLL_INTERVAL); + if (ret) { + snand_log_snfi(snf->pdev, "Timed out waiting for WIP_READY\n"); + goto cleanup; + } + + ret = read32_poll_timeout(snf->nfi_base + SNF_MAC_CTL, val, + !(val & WIP), 0, SNFI_POLL_INTERVAL); + if (ret) { + snand_log_snfi(snf->pdev, + "Timed out waiting for WIP cleared\n"); + } + +cleanup: + nfi_write32(snf, SNF_MAC_CTL, 0); + + return ret; +} + +int mtk_snand_mac_io(struct mtk_snand *snf, const uint8_t *out, uint32_t outlen, + uint8_t *in, uint32_t inlen) +{ + int ret; + + if (outlen + inlen > SNF_GPRAM_SIZE) + return -EINVAL; + + mtk_snand_mac_reset(snf); + + nfi_write_data(snf, SNF_GPRAM, out, outlen); + + ret = mtk_snand_mac_trigger(snf, outlen, inlen); + if (ret) + return ret; + + if (!inlen) + return 0; + + nfi_read_data(snf, SNF_GPRAM + outlen, in, inlen); + + return 0; +} + +static int mtk_snand_get_feature(struct mtk_snand *snf, uint32_t addr) +{ + uint8_t op[2], val; + int ret; + + op[0] = SNAND_CMD_GET_FEATURE; + op[1] = (uint8_t)addr; + + ret = mtk_snand_mac_io(snf, op, sizeof(op), &val, 1); + if (ret) + return ret; + + return val; +} + +int mtk_snand_set_feature(struct mtk_snand *snf, uint32_t addr, uint32_t val) +{ + uint8_t op[3]; + + op[0] = SNAND_CMD_SET_FEATURE; + op[1] = (uint8_t)addr; + op[2] = (uint8_t)val; + + return mtk_snand_mac_io(snf, op, sizeof(op), NULL, 0); +} + +static int mtk_snand_poll_status(struct mtk_snand *snf, uint32_t wait_us) +{ + int val; + mtk_snand_time_t time_start, tmo; + + time_start = timer_get_ticks(); + tmo = timer_time_to_tick(wait_us); + + do { + val = mtk_snand_get_feature(snf, SNAND_FEATURE_STATUS_ADDR); + if (!(val & SNAND_STATUS_OIP)) + return val & (SNAND_STATUS_ERASE_FAIL | + SNAND_STATUS_PROGRAM_FAIL); + } while (!timer_is_timeout(time_start, tmo)); + + return -ETIMEDOUT; +} + +int mtk_snand_chip_reset(struct mtk_snand *snf) +{ + uint8_t op = SNAND_CMD_RESET; + int ret; + + ret = mtk_snand_mac_io(snf, &op, 1, NULL, 0); + if (ret) + return ret; + + ret = mtk_snand_poll_status(snf, SNFI_POLL_INTERVAL); + if (ret < 0) + return ret; + + return 0; +} + +static int mtk_snand_config_feature(struct mtk_snand *snf, uint8_t clr, + uint8_t set) +{ + int val, newval; + int ret; + + val = mtk_snand_get_feature(snf, SNAND_FEATURE_CONFIG_ADDR); + if (val < 0) { + snand_log_chip(snf->pdev, + "Failed to get configuration feature\n"); + return val; + } + + newval = (val & (~clr)) | set; + + if (newval == val) + return 0; + + ret = mtk_snand_set_feature(snf, SNAND_FEATURE_CONFIG_ADDR, + (uint8_t)newval); + if (val < 0) { + snand_log_chip(snf->pdev, + "Failed to set configuration feature\n"); + return ret; + } + + val = mtk_snand_get_feature(snf, SNAND_FEATURE_CONFIG_ADDR); + if (val < 0) { + snand_log_chip(snf->pdev, + "Failed to get configuration feature\n"); + return val; + } + + if (newval != val) + return -ENOTSUPP; + + return 0; +} + +static int mtk_snand_ondie_ecc_control(struct mtk_snand *snf, bool enable) +{ + int ret; + + if (enable) + ret = mtk_snand_config_feature(snf, 0, SNAND_FEATURE_ECC_EN); + else + ret = mtk_snand_config_feature(snf, SNAND_FEATURE_ECC_EN, 0); + + if (ret) { + snand_log_chip(snf->pdev, "Failed to %s On-Die ECC engine\n", + enable ? "enable" : "disable"); + } + + return ret; +} + +static int mtk_snand_qspi_control(struct mtk_snand *snf, bool enable) +{ + int ret; + + if (enable) { + ret = mtk_snand_config_feature(snf, 0, + SNAND_FEATURE_QUAD_ENABLE); + } else { + ret = mtk_snand_config_feature(snf, + SNAND_FEATURE_QUAD_ENABLE, 0); + } + + if (ret) { + snand_log_chip(snf->pdev, "Failed to %s quad spi\n", + enable ? "enable" : "disable"); + } + + return ret; +} + +static int mtk_snand_unlock(struct mtk_snand *snf) +{ + int ret; + + ret = mtk_snand_set_feature(snf, SNAND_FEATURE_PROTECT_ADDR, 0); + if (ret) { + snand_log_chip(snf->pdev, "Failed to set protection feature\n"); + return ret; + } + + return 0; +} + +static int mtk_snand_write_enable(struct mtk_snand *snf) +{ + uint8_t op = SNAND_CMD_WRITE_ENABLE; + int ret, val; + + ret = mtk_snand_mac_io(snf, &op, 1, NULL, 0); + if (ret) + return ret; + + val = mtk_snand_get_feature(snf, SNAND_FEATURE_STATUS_ADDR); + if (val < 0) + return ret; + + if (val & SNAND_STATUS_WEL) + return 0; + + snand_log_chip(snf->pdev, "Failed to send write-enable command\n"); + + return -ENOTSUPP; +} + +static int mtk_snand_select_die(struct mtk_snand *snf, uint32_t dieidx) +{ + if (!snf->select_die) + return 0; + + return snf->select_die(snf, dieidx); +} + +static uint64_t mtk_snand_select_die_address(struct mtk_snand *snf, + uint64_t addr) +{ + uint32_t dieidx; + + if (!snf->select_die) + return addr; + + dieidx = addr >> snf->die_shift; + + mtk_snand_select_die(snf, dieidx); + + return addr & snf->die_mask; +} + +static uint32_t mtk_snand_get_plane_address(struct mtk_snand *snf, + uint32_t page) +{ + uint32_t pages_per_block; + + pages_per_block = 1 << (snf->erasesize_shift - snf->writesize_shift); + + if (page & pages_per_block) + return 1 << (snf->writesize_shift + 1); + + return 0; +} + +static int mtk_snand_page_op(struct mtk_snand *snf, uint32_t page, uint8_t cmd) +{ + uint8_t op[4]; + + op[0] = cmd; + op[1] = (page >> 16) & 0xff; + op[2] = (page >> 8) & 0xff; + op[3] = page & 0xff; + + return mtk_snand_mac_io(snf, op, sizeof(op), NULL, 0); +} + +static void mtk_snand_read_fdm(struct mtk_snand *snf, uint8_t *buf) +{ + uint32_t vall, valm; + uint8_t *oobptr = buf; + int i, j; + + for (i = 0; i < snf->ecc_steps; i++) { + vall = nfi_read32(snf, NFI_FDML(i)); + valm = nfi_read32(snf, NFI_FDMM(i)); + + for (j = 0; j < snf->nfi_soc->fdm_size; j++) + oobptr[j] = (j >= 4 ? valm : vall) >> ((j % 4) * 8); + + oobptr += snf->nfi_soc->fdm_size; + } +} + +static int mtk_snand_read_ecc_parity(struct mtk_snand *snf, uint32_t page, + uint32_t sect, uint8_t *oob) +{ + uint32_t ecc_bytes = snf->spare_per_sector - snf->nfi_soc->fdm_size; + uint32_t coladdr, raw_offs, offs; + uint8_t op[4]; + + if (sizeof(op) + ecc_bytes > SNF_GPRAM_SIZE) { + snand_log_snfi(snf->pdev, + "ECC parity size does not fit the GPRAM\n"); + return -ENOTSUPP; + } + + raw_offs = sect * snf->raw_sector_size + snf->nfi_soc->sector_size + + snf->nfi_soc->fdm_size; + offs = snf->ecc_steps * snf->nfi_soc->fdm_size + sect * ecc_bytes; + + /* Column address with plane bit */ + coladdr = raw_offs | mtk_snand_get_plane_address(snf, page); + + op[0] = SNAND_CMD_READ_FROM_CACHE; + op[1] = (coladdr >> 8) & 0xff; + op[2] = coladdr & 0xff; + op[3] = 0; + + return mtk_snand_mac_io(snf, op, sizeof(op), oob + offs, ecc_bytes); +} + +static int mtk_snand_check_ecc_result(struct mtk_snand *snf, uint32_t page) +{ + uint8_t *oob = snf->page_cache + snf->writesize; + int i, rc, ret = 0, max_bitflips = 0; + + for (i = 0; i < snf->ecc_steps; i++) { + if (snf->sect_bf[i] >= 0) { + if (snf->sect_bf[i] > max_bitflips) + max_bitflips = snf->sect_bf[i]; + continue; + } + + rc = mtk_snand_read_ecc_parity(snf, page, i, oob); + if (rc) + return rc; + + rc = mtk_ecc_fixup_empty_sector(snf, i); + if (rc < 0) { + ret = -EBADMSG; + + snand_log_ecc(snf->pdev, + "Uncorrectable bitflips in page %u sect %u\n", + page, i); + } else if (rc) { + snf->sect_bf[i] = rc; + + if (snf->sect_bf[i] > max_bitflips) + max_bitflips = snf->sect_bf[i]; + + snand_log_ecc(snf->pdev, + "%u bitflip%s corrected in page %u sect %u\n", + rc, rc > 1 ? "s" : "", page, i); + } else { + snf->sect_bf[i] = 0; + } + } + + return ret ? ret : max_bitflips; +} + +static int mtk_snand_read_cache(struct mtk_snand *snf, uint32_t page, bool raw) +{ + uint32_t coladdr, rwbytes, mode, len, val; + uintptr_t dma_addr; + int ret; + + /* Column address with plane bit */ + coladdr = mtk_snand_get_plane_address(snf, page); + + mtk_snand_mac_reset(snf); + mtk_nfi_reset(snf); + + /* Command and dummy cycles */ + nfi_write32(snf, SNF_RD_CTL2, + ((uint32_t)snf->dummy_rfc << DATA_READ_DUMMY_S) | + (snf->opcode_rfc << DATA_READ_CMD_S)); + + /* Column address */ + nfi_write32(snf, SNF_RD_CTL3, coladdr); + + /* Set read mode */ + mode = (uint32_t)snf->mode_rfc << DATA_READ_MODE_S; + nfi_rmw32(snf, SNF_MISC_CTL, DATA_READ_MODE, mode | DATARD_CUSTOM_EN); + + /* Set bytes to read */ + rwbytes = snf->ecc_steps * snf->raw_sector_size; + nfi_write32(snf, SNF_MISC_CTL2, (rwbytes << PROGRAM_LOAD_BYTE_NUM_S) | + rwbytes); + + /* NFI read prepare */ + mode = raw ? 0 : CNFG_HW_ECC_EN | CNFG_AUTO_FMT_EN; + nfi_write16(snf, NFI_CNFG, (CNFG_OP_MODE_CUST << CNFG_OP_MODE_S) | + CNFG_DMA_BURST_EN | CNFG_READ_MODE | CNFG_DMA_MODE | mode); + + nfi_write32(snf, NFI_CON, (snf->ecc_steps << CON_SEC_NUM_S)); + + /* Prepare for DMA read */ + len = snf->writesize + snf->oobsize; + ret = dma_mem_map(snf->pdev, snf->page_cache, &dma_addr, len, false); + if (ret) { + snand_log_nfi(snf->pdev, + "DMA map from device failed with %d\n", ret); + return ret; + } + + nfi_write32(snf, NFI_STRADDR, (uint32_t)dma_addr); + + if (!raw) + mtk_snand_ecc_decoder_start(snf); + + /* Prepare for custom read interrupt */ + nfi_write32(snf, NFI_INTR_EN, NFI_IRQ_INTR_EN | NFI_IRQ_CUS_READ); + irq_completion_init(snf->pdev); + + /* Trigger NFI into custom mode */ + nfi_write16(snf, NFI_CMD, NFI_CMD_DUMMY_READ); + + /* Start DMA read */ + nfi_rmw32(snf, NFI_CON, 0, CON_BRD); + nfi_write16(snf, NFI_STRDATA, STR_DATA); + + /* Wait for operation finished */ + ret = irq_completion_wait(snf->pdev, snf->nfi_base + SNF_STA_CTL1, + CUS_READ_DONE, SNFI_POLL_INTERVAL); + if (ret) { + snand_log_nfi(snf->pdev, + "DMA timed out for reading from cache\n"); + goto cleanup; + } + + /* Wait for BUS_SEC_CNTR returning expected value */ + ret = read32_poll_timeout(snf->nfi_base + NFI_BYTELEN, val, + BUS_SEC_CNTR(val) >= snf->ecc_steps, + 0, SNFI_POLL_INTERVAL); + if (ret) { + snand_log_nfi(snf->pdev, + "Timed out waiting for BUS_SEC_CNTR\n"); + goto cleanup; + } + + /* Wait for bus becoming idle */ + ret = read32_poll_timeout(snf->nfi_base + NFI_MASTERSTA, val, + !(val & snf->nfi_soc->mastersta_mask), + 0, SNFI_POLL_INTERVAL); + if (ret) { + snand_log_nfi(snf->pdev, + "Timed out waiting for bus becoming idle\n"); + goto cleanup; + } + + if (!raw) { + ret = mtk_ecc_wait_decoder_done(snf); + if (ret) + goto cleanup; + + mtk_snand_read_fdm(snf, snf->page_cache + snf->writesize); + + mtk_ecc_check_decode_error(snf); + mtk_snand_ecc_decoder_stop(snf); + + ret = mtk_snand_check_ecc_result(snf, page); + } + +cleanup: + /* DMA cleanup */ + dma_mem_unmap(snf->pdev, dma_addr, len, false); + + /* Stop read */ + nfi_write32(snf, NFI_CON, 0); + nfi_write16(snf, NFI_CNFG, 0); + + /* Clear SNF done flag */ + nfi_rmw32(snf, SNF_STA_CTL1, 0, CUS_READ_DONE); + nfi_write32(snf, SNF_STA_CTL1, 0); + + /* Disable interrupt */ + nfi_read32(snf, NFI_INTR_STA); + nfi_write32(snf, NFI_INTR_EN, 0); + + nfi_rmw32(snf, SNF_MISC_CTL, DATARD_CUSTOM_EN, 0); + + return ret; +} + +static void mtk_snand_from_raw_page(struct mtk_snand *snf, void *buf, void *oob) +{ + uint32_t i, ecc_bytes = snf->spare_per_sector - snf->nfi_soc->fdm_size; + uint8_t *eccptr = oob + snf->ecc_steps * snf->nfi_soc->fdm_size; + uint8_t *bufptr = buf, *oobptr = oob, *raw_sector; + + for (i = 0; i < snf->ecc_steps; i++) { + raw_sector = snf->page_cache + i * snf->raw_sector_size; + + if (buf) { + memcpy(bufptr, raw_sector, snf->nfi_soc->sector_size); + bufptr += snf->nfi_soc->sector_size; + } + + raw_sector += snf->nfi_soc->sector_size; + + if (oob) { + memcpy(oobptr, raw_sector, snf->nfi_soc->fdm_size); + oobptr += snf->nfi_soc->fdm_size; + raw_sector += snf->nfi_soc->fdm_size; + + memcpy(eccptr, raw_sector, ecc_bytes); + eccptr += ecc_bytes; + } + } +} + +static int mtk_snand_do_read_page(struct mtk_snand *snf, uint64_t addr, + void *buf, void *oob, bool raw, bool format) +{ + uint64_t die_addr; + uint32_t page; + int ret; + + die_addr = mtk_snand_select_die_address(snf, addr); + page = die_addr >> snf->writesize_shift; + + ret = mtk_snand_page_op(snf, page, SNAND_CMD_READ_TO_CACHE); + if (ret) + return ret; + + ret = mtk_snand_poll_status(snf, SNFI_POLL_INTERVAL); + if (ret < 0) { + snand_log_chip(snf->pdev, "Read to cache command timed out\n"); + return ret; + } + + ret = mtk_snand_read_cache(snf, page, raw); + if (ret < 0 && ret != -EBADMSG) + return ret; + + if (raw) { + if (format) { + mtk_snand_bm_swap_raw(snf); + mtk_snand_fdm_bm_swap_raw(snf); + mtk_snand_from_raw_page(snf, buf, oob); + } else { + if (buf) + memcpy(buf, snf->page_cache, snf->writesize); + + if (oob) { + memset(oob, 0xff, snf->oobsize); + memcpy(oob, snf->page_cache + snf->writesize, + snf->ecc_steps * snf->spare_per_sector); + } + } + } else { + mtk_snand_bm_swap(snf); + mtk_snand_fdm_bm_swap(snf); + + if (buf) + memcpy(buf, snf->page_cache, snf->writesize); + + if (oob) { + memset(oob, 0xff, snf->oobsize); + memcpy(oob, snf->page_cache + snf->writesize, + snf->ecc_steps * snf->nfi_soc->fdm_size); + } + } + + return ret; +} + +int mtk_snand_read_page(struct mtk_snand *snf, uint64_t addr, void *buf, + void *oob, bool raw) +{ + if (!snf || (!buf && !oob)) + return -EINVAL; + + if (addr >= snf->size) + return -EINVAL; + + return mtk_snand_do_read_page(snf, addr, buf, oob, raw, true); +} + +static void mtk_snand_write_fdm(struct mtk_snand *snf, const uint8_t *buf) +{ + uint32_t vall, valm, fdm_size = snf->nfi_soc->fdm_size; + const uint8_t *oobptr = buf; + int i, j; + + for (i = 0; i < snf->ecc_steps; i++) { + vall = 0; + valm = 0; + + for (j = 0; j < 8; j++) { + if (j < 4) + vall |= (j < fdm_size ? oobptr[j] : 0xff) + << (j * 8); + else + valm |= (j < fdm_size ? oobptr[j] : 0xff) + << ((j - 4) * 8); + } + + nfi_write32(snf, NFI_FDML(i), vall); + nfi_write32(snf, NFI_FDMM(i), valm); + + oobptr += fdm_size; + } +} + +static int mtk_snand_program_load(struct mtk_snand *snf, uint32_t page, + bool raw) +{ + uint32_t coladdr, rwbytes, mode, len, val; + uintptr_t dma_addr; + int ret; + + /* Column address with plane bit */ + coladdr = mtk_snand_get_plane_address(snf, page); + + mtk_snand_mac_reset(snf); + mtk_nfi_reset(snf); + + /* Write FDM registers if necessary */ + if (!raw) + mtk_snand_write_fdm(snf, snf->page_cache + snf->writesize); + + /* Command */ + nfi_write32(snf, SNF_PG_CTL1, (snf->opcode_pl << PG_LOAD_CMD_S)); + + /* Column address */ + nfi_write32(snf, SNF_PG_CTL2, coladdr); + + /* Set write mode */ + mode = snf->mode_pl ? PG_LOAD_X4_EN : 0; + nfi_rmw32(snf, SNF_MISC_CTL, PG_LOAD_X4_EN, mode | PG_LOAD_CUSTOM_EN); + + /* Set bytes to write */ + rwbytes = snf->ecc_steps * snf->raw_sector_size; + nfi_write32(snf, SNF_MISC_CTL2, (rwbytes << PROGRAM_LOAD_BYTE_NUM_S) | + rwbytes); + + /* NFI write prepare */ + mode = raw ? 0 : CNFG_HW_ECC_EN | CNFG_AUTO_FMT_EN; + nfi_write16(snf, NFI_CNFG, (CNFG_OP_MODE_PROGRAM << CNFG_OP_MODE_S) | + CNFG_DMA_BURST_EN | CNFG_DMA_MODE | mode); + + nfi_write32(snf, NFI_CON, (snf->ecc_steps << CON_SEC_NUM_S)); + + /* Prepare for DMA write */ + len = snf->writesize + snf->oobsize; + ret = dma_mem_map(snf->pdev, snf->page_cache, &dma_addr, len, true); + if (ret) { + snand_log_nfi(snf->pdev, + "DMA map to device failed with %d\n", ret); + return ret; + } + + nfi_write32(snf, NFI_STRADDR, (uint32_t)dma_addr); + + if (!raw) + mtk_snand_ecc_encoder_start(snf); + + /* Prepare for custom write interrupt */ + nfi_write32(snf, NFI_INTR_EN, NFI_IRQ_INTR_EN | NFI_IRQ_CUS_PG); + irq_completion_init(snf->pdev); + + /* Trigger NFI into custom mode */ + nfi_write16(snf, NFI_CMD, NFI_CMD_DUMMY_WRITE); + + /* Start DMA write */ + nfi_rmw32(snf, NFI_CON, 0, CON_BWR); + nfi_write16(snf, NFI_STRDATA, STR_DATA); + + /* Wait for operation finished */ + ret = irq_completion_wait(snf->pdev, snf->nfi_base + SNF_STA_CTL1, + CUS_PG_DONE, SNFI_POLL_INTERVAL); + if (ret) { + snand_log_nfi(snf->pdev, + "DMA timed out for program load\n"); + goto cleanup; + } + + /* Wait for NFI_SEC_CNTR returning expected value */ + ret = read32_poll_timeout(snf->nfi_base + NFI_ADDRCNTR, val, + NFI_SEC_CNTR(val) >= snf->ecc_steps, + 0, SNFI_POLL_INTERVAL); + if (ret) { + snand_log_nfi(snf->pdev, + "Timed out waiting for NFI_SEC_CNTR\n"); + goto cleanup; + } + + if (!raw) + mtk_snand_ecc_encoder_stop(snf); + +cleanup: + /* DMA cleanup */ + dma_mem_unmap(snf->pdev, dma_addr, len, true); + + /* Stop write */ + nfi_write32(snf, NFI_CON, 0); + nfi_write16(snf, NFI_CNFG, 0); + + /* Clear SNF done flag */ + nfi_rmw32(snf, SNF_STA_CTL1, 0, CUS_PG_DONE); + nfi_write32(snf, SNF_STA_CTL1, 0); + + /* Disable interrupt */ + nfi_read32(snf, NFI_INTR_STA); + nfi_write32(snf, NFI_INTR_EN, 0); + + nfi_rmw32(snf, SNF_MISC_CTL, PG_LOAD_CUSTOM_EN, 0); + + return ret; +} + +static void mtk_snand_to_raw_page(struct mtk_snand *snf, + const void *buf, const void *oob, + bool empty_ecc) +{ + uint32_t i, ecc_bytes = snf->spare_per_sector - snf->nfi_soc->fdm_size; + const uint8_t *eccptr = oob + snf->ecc_steps * snf->nfi_soc->fdm_size; + const uint8_t *bufptr = buf, *oobptr = oob; + uint8_t *raw_sector; + + memset(snf->page_cache, 0xff, snf->writesize + snf->oobsize); + for (i = 0; i < snf->ecc_steps; i++) { + raw_sector = snf->page_cache + i * snf->raw_sector_size; + + if (buf) { + memcpy(raw_sector, bufptr, snf->nfi_soc->sector_size); + bufptr += snf->nfi_soc->sector_size; + } + + raw_sector += snf->nfi_soc->sector_size; + + if (oob) { + memcpy(raw_sector, oobptr, snf->nfi_soc->fdm_size); + oobptr += snf->nfi_soc->fdm_size; + raw_sector += snf->nfi_soc->fdm_size; + + if (empty_ecc) + memset(raw_sector, 0xff, ecc_bytes); + else + memcpy(raw_sector, eccptr, ecc_bytes); + eccptr += ecc_bytes; + } + } +} + +static bool mtk_snand_is_empty_page(struct mtk_snand *snf, const void *buf, + const void *oob) +{ + const uint8_t *p = buf; + uint32_t i, j; + + if (buf) { + for (i = 0; i < snf->writesize; i++) { + if (p[i] != 0xff) + return false; + } + } + + if (oob) { + for (j = 0; j < snf->ecc_steps; j++) { + p = oob + j * snf->nfi_soc->fdm_size; + + for (i = 0; i < snf->nfi_soc->fdm_ecc_size; i++) { + if (p[i] != 0xff) + return false; + } + } + } + + return true; +} + +static int mtk_snand_do_write_page(struct mtk_snand *snf, uint64_t addr, + const void *buf, const void *oob, + bool raw, bool format) +{ + uint64_t die_addr; + bool empty_ecc = false; + uint32_t page; + int ret; + + die_addr = mtk_snand_select_die_address(snf, addr); + page = die_addr >> snf->writesize_shift; + + if (!raw && mtk_snand_is_empty_page(snf, buf, oob)) { + /* + * If the data in the page to be ecc-ed is full 0xff, + * change to raw write mode + */ + raw = true; + format = true; + + /* fill ecc parity code region with 0xff */ + empty_ecc = true; + } + + if (raw) { + if (format) { + mtk_snand_to_raw_page(snf, buf, oob, empty_ecc); + mtk_snand_fdm_bm_swap_raw(snf); + mtk_snand_bm_swap_raw(snf); + } else { + memset(snf->page_cache, 0xff, + snf->writesize + snf->oobsize); + + if (buf) + memcpy(snf->page_cache, buf, snf->writesize); + + if (oob) { + memcpy(snf->page_cache + snf->writesize, oob, + snf->ecc_steps * snf->spare_per_sector); + } + } + } else { + memset(snf->page_cache, 0xff, snf->writesize + snf->oobsize); + if (buf) + memcpy(snf->page_cache, buf, snf->writesize); + + if (oob) { + memcpy(snf->page_cache + snf->writesize, oob, + snf->ecc_steps * snf->nfi_soc->fdm_size); + } + + mtk_snand_fdm_bm_swap(snf); + mtk_snand_bm_swap(snf); + } + + ret = mtk_snand_write_enable(snf); + if (ret) + return ret; + + ret = mtk_snand_program_load(snf, page, raw); + if (ret) + return ret; + + ret = mtk_snand_page_op(snf, page, SNAND_CMD_PROGRAM_EXECUTE); + if (ret) + return ret; + + ret = mtk_snand_poll_status(snf, SNFI_POLL_INTERVAL); + if (ret < 0) { + snand_log_chip(snf->pdev, + "Page program command timed out on page %u\n", + page); + return ret; + } + + if (ret & SNAND_STATUS_PROGRAM_FAIL) { + snand_log_chip(snf->pdev, + "Page program failed on page %u\n", page); + return -EIO; + } + + return 0; +} + +int mtk_snand_write_page(struct mtk_snand *snf, uint64_t addr, const void *buf, + const void *oob, bool raw) +{ + if (!snf || (!buf && !oob)) + return -EINVAL; + + if (addr >= snf->size) + return -EINVAL; + + return mtk_snand_do_write_page(snf, addr, buf, oob, raw, true); +} + +int mtk_snand_erase_block(struct mtk_snand *snf, uint64_t addr) +{ + uint64_t die_addr; + uint32_t page, block; + int ret; + + if (!snf) + return -EINVAL; + + if (addr >= snf->size) + return -EINVAL; + + die_addr = mtk_snand_select_die_address(snf, addr); + block = die_addr >> snf->erasesize_shift; + page = block << (snf->erasesize_shift - snf->writesize_shift); + + ret = mtk_snand_write_enable(snf); + if (ret) + return ret; + + ret = mtk_snand_page_op(snf, page, SNAND_CMD_BLOCK_ERASE); + if (ret) + return ret; + + ret = mtk_snand_poll_status(snf, SNFI_POLL_INTERVAL); + if (ret < 0) { + snand_log_chip(snf->pdev, + "Block erase command timed out on block %u\n", + block); + return ret; + } + + if (ret & SNAND_STATUS_ERASE_FAIL) { + snand_log_chip(snf->pdev, + "Block erase failed on block %u\n", block); + return -EIO; + } + + return 0; +} + +static int mtk_snand_block_isbad_std(struct mtk_snand *snf, uint64_t addr) +{ + int ret; + + ret = mtk_snand_do_read_page(snf, addr, NULL, snf->buf_cache, true, + false); + if (ret && ret != -EBADMSG) + return ret; + + return snf->buf_cache[0] != 0xff; +} + +static int mtk_snand_block_isbad_mtk(struct mtk_snand *snf, uint64_t addr) +{ + int ret; + + ret = mtk_snand_do_read_page(snf, addr, NULL, snf->buf_cache, true, + true); + if (ret && ret != -EBADMSG) + return ret; + + return snf->buf_cache[0] != 0xff; +} + +int mtk_snand_block_isbad(struct mtk_snand *snf, uint64_t addr) +{ + if (!snf) + return -EINVAL; + + if (addr >= snf->size) + return -EINVAL; + + addr &= ~snf->erasesize_mask; + + if (snf->nfi_soc->bbm_swap) + return mtk_snand_block_isbad_std(snf, addr); + + return mtk_snand_block_isbad_mtk(snf, addr); +} + +static int mtk_snand_block_markbad_std(struct mtk_snand *snf, uint64_t addr) +{ + /* Standard BBM position */ + memset(snf->buf_cache, 0xff, snf->oobsize); + snf->buf_cache[0] = 0; + + return mtk_snand_do_write_page(snf, addr, NULL, snf->buf_cache, true, + false); +} + +static int mtk_snand_block_markbad_mtk(struct mtk_snand *snf, uint64_t addr) +{ + /* Write the whole page with zeros */ + memset(snf->buf_cache, 0, snf->writesize + snf->oobsize); + + return mtk_snand_do_write_page(snf, addr, snf->buf_cache, + snf->buf_cache + snf->writesize, true, + true); +} + +int mtk_snand_block_markbad(struct mtk_snand *snf, uint64_t addr) +{ + if (!snf) + return -EINVAL; + + if (addr >= snf->size) + return -EINVAL; + + addr &= ~snf->erasesize_mask; + + if (snf->nfi_soc->bbm_swap) + return mtk_snand_block_markbad_std(snf, addr); + + return mtk_snand_block_markbad_mtk(snf, addr); +} + +int mtk_snand_fill_oob(struct mtk_snand *snf, uint8_t *oobraw, + const uint8_t *oobbuf, size_t ooblen) +{ + size_t len = ooblen, sect_fdm_len; + const uint8_t *oob = oobbuf; + uint32_t step = 0; + + if (!snf || !oobraw || !oob) + return -EINVAL; + + while (len && step < snf->ecc_steps) { + sect_fdm_len = snf->nfi_soc->fdm_size - 1; + if (sect_fdm_len > len) + sect_fdm_len = len; + + memcpy(oobraw + step * snf->nfi_soc->fdm_size + 1, oob, + sect_fdm_len); + + len -= sect_fdm_len; + oob += sect_fdm_len; + step++; + } + + return len; +} + +int mtk_snand_transfer_oob(struct mtk_snand *snf, uint8_t *oobbuf, + size_t ooblen, const uint8_t *oobraw) +{ + size_t len = ooblen, sect_fdm_len; + uint8_t *oob = oobbuf; + uint32_t step = 0; + + if (!snf || !oobraw || !oob) + return -EINVAL; + + while (len && step < snf->ecc_steps) { + sect_fdm_len = snf->nfi_soc->fdm_size - 1; + if (sect_fdm_len > len) + sect_fdm_len = len; + + memcpy(oob, oobraw + step * snf->nfi_soc->fdm_size + 1, + sect_fdm_len); + + len -= sect_fdm_len; + oob += sect_fdm_len; + step++; + } + + return len; +} + +int mtk_snand_read_page_auto_oob(struct mtk_snand *snf, uint64_t addr, + void *buf, void *oob, size_t ooblen, + size_t *actualooblen, bool raw) +{ + int ret, oobremain; + + if (!snf) + return -EINVAL; + + if (!oob) + return mtk_snand_read_page(snf, addr, buf, NULL, raw); + + ret = mtk_snand_read_page(snf, addr, buf, snf->buf_cache, raw); + if (ret && ret != -EBADMSG) { + if (actualooblen) + *actualooblen = 0; + return ret; + } + + oobremain = mtk_snand_transfer_oob(snf, oob, ooblen, snf->buf_cache); + if (actualooblen) + *actualooblen = ooblen - oobremain; + + return ret; +} + +int mtk_snand_write_page_auto_oob(struct mtk_snand *snf, uint64_t addr, + const void *buf, const void *oob, + size_t ooblen, size_t *actualooblen, bool raw) +{ + int oobremain; + + if (!snf) + return -EINVAL; + + if (!oob) + return mtk_snand_write_page(snf, addr, buf, NULL, raw); + + memset(snf->buf_cache, 0xff, snf->oobsize); + oobremain = mtk_snand_fill_oob(snf, snf->buf_cache, oob, ooblen); + if (actualooblen) + *actualooblen = ooblen - oobremain; + + return mtk_snand_write_page(snf, addr, buf, snf->buf_cache, raw); +} + +int mtk_snand_get_chip_info(struct mtk_snand *snf, + struct mtk_snand_chip_info *info) +{ + if (!snf || !info) + return -EINVAL; + + info->model = snf->model; + info->chipsize = snf->size; + info->blocksize = snf->erasesize; + info->pagesize = snf->writesize; + info->sparesize = snf->oobsize; + info->spare_per_sector = snf->spare_per_sector; + info->fdm_size = snf->nfi_soc->fdm_size; + info->fdm_ecc_size = snf->nfi_soc->fdm_ecc_size; + info->num_sectors = snf->ecc_steps; + info->sector_size = snf->nfi_soc->sector_size; + info->ecc_strength = snf->ecc_strength; + info->ecc_bytes = snf->ecc_bytes; + + return 0; +} + +int mtk_snand_irq_process(struct mtk_snand *snf) +{ + uint32_t sta, ien; + + if (!snf) + return -EINVAL; + + sta = nfi_read32(snf, NFI_INTR_STA); + ien = nfi_read32(snf, NFI_INTR_EN); + + if (!(sta & ien)) + return 0; + + nfi_write32(snf, NFI_INTR_EN, 0); + irq_completion_done(snf->pdev); + + return 1; +} + +static int mtk_snand_select_spare_per_sector(struct mtk_snand *snf) +{ + uint32_t spare_per_step = snf->oobsize / snf->ecc_steps; + int i, mul = 1; + + /* + * If we're using the 1KB sector size, HW will automatically + * double the spare size. So we should only use half of the value. + */ + if (snf->nfi_soc->sector_size == 1024) + mul = 2; + + spare_per_step /= mul; + + for (i = snf->nfi_soc->num_spare_size - 1; i >= 0; i--) { + if (snf->nfi_soc->spare_sizes[i] <= spare_per_step) { + snf->spare_per_sector = snf->nfi_soc->spare_sizes[i]; + snf->spare_per_sector *= mul; + return i; + } + } + + snand_log_nfi(snf->pdev, + "Page size %u+%u is not supported\n", snf->writesize, + snf->oobsize); + + return -1; +} + +static int mtk_snand_pagefmt_setup(struct mtk_snand *snf) +{ + uint32_t spare_size_idx, spare_size_shift, pagesize_idx; + uint32_t sector_size_512; + + if (snf->nfi_soc->sector_size == 512) { + sector_size_512 = NFI_SEC_SEL_512; + spare_size_shift = NFI_SPARE_SIZE_S; + } else { + sector_size_512 = 0; + spare_size_shift = NFI_SPARE_SIZE_LS_S; + } + + switch (snf->writesize) { + case SZ_512: + pagesize_idx = NFI_PAGE_SIZE_512_2K; + break; + case SZ_2K: + if (snf->nfi_soc->sector_size == 512) + pagesize_idx = NFI_PAGE_SIZE_2K_4K; + else + pagesize_idx = NFI_PAGE_SIZE_512_2K; + break; + case SZ_4K: + if (snf->nfi_soc->sector_size == 512) + pagesize_idx = NFI_PAGE_SIZE_4K_8K; + else + pagesize_idx = NFI_PAGE_SIZE_2K_4K; + break; + case SZ_8K: + if (snf->nfi_soc->sector_size == 512) + pagesize_idx = NFI_PAGE_SIZE_8K_16K; + else + pagesize_idx = NFI_PAGE_SIZE_4K_8K; + break; + case SZ_16K: + pagesize_idx = NFI_PAGE_SIZE_8K_16K; + break; + default: + snand_log_nfi(snf->pdev, "Page size %u is not supported\n", + snf->writesize); + return -ENOTSUPP; + } + + spare_size_idx = mtk_snand_select_spare_per_sector(snf); + if (unlikely(spare_size_idx < 0)) + return -ENOTSUPP; + + snf->raw_sector_size = snf->nfi_soc->sector_size + + snf->spare_per_sector; + + /* Setup page format */ + nfi_write32(snf, NFI_PAGEFMT, + (snf->nfi_soc->fdm_ecc_size << NFI_FDM_ECC_NUM_S) | + (snf->nfi_soc->fdm_size << NFI_FDM_NUM_S) | + (spare_size_idx << spare_size_shift) | + (pagesize_idx << NFI_PAGE_SIZE_S) | + sector_size_512); + + return 0; +} + +static enum snand_flash_io mtk_snand_select_opcode(struct mtk_snand *snf, + uint32_t snfi_caps, uint8_t *opcode, + uint8_t *dummy, + const struct snand_io_cap *op_cap) +{ + uint32_t i, caps; + + caps = snfi_caps & op_cap->caps; + + i = fls(caps); + if (i > 0) { + *opcode = op_cap->opcodes[i - 1].opcode; + if (dummy) + *dummy = op_cap->opcodes[i - 1].dummy; + return i - 1; + } + + return __SNAND_IO_MAX; +} + +static int mtk_snand_select_opcode_rfc(struct mtk_snand *snf, + uint32_t snfi_caps, + const struct snand_io_cap *op_cap) +{ + enum snand_flash_io idx; + + static const uint8_t rfc_modes[__SNAND_IO_MAX] = { + [SNAND_IO_1_1_1] = DATA_READ_MODE_X1, + [SNAND_IO_1_1_2] = DATA_READ_MODE_X2, + [SNAND_IO_1_2_2] = DATA_READ_MODE_DUAL, + [SNAND_IO_1_1_4] = DATA_READ_MODE_X4, + [SNAND_IO_1_4_4] = DATA_READ_MODE_QUAD, + }; + + idx = mtk_snand_select_opcode(snf, snfi_caps, &snf->opcode_rfc, + &snf->dummy_rfc, op_cap); + if (idx >= __SNAND_IO_MAX) { + snand_log_snfi(snf->pdev, + "No capable opcode for read from cache\n"); + return -ENOTSUPP; + } + + snf->mode_rfc = rfc_modes[idx]; + + if (idx == SNAND_IO_1_1_4 || idx == SNAND_IO_1_4_4) + snf->quad_spi_op = true; + + return 0; +} + +static int mtk_snand_select_opcode_pl(struct mtk_snand *snf, uint32_t snfi_caps, + const struct snand_io_cap *op_cap) +{ + enum snand_flash_io idx; + + static const uint8_t pl_modes[__SNAND_IO_MAX] = { + [SNAND_IO_1_1_1] = 0, + [SNAND_IO_1_1_4] = 1, + }; + + idx = mtk_snand_select_opcode(snf, snfi_caps, &snf->opcode_pl, + NULL, op_cap); + if (idx >= __SNAND_IO_MAX) { + snand_log_snfi(snf->pdev, + "No capable opcode for program load\n"); + return -ENOTSUPP; + } + + snf->mode_pl = pl_modes[idx]; + + if (idx == SNAND_IO_1_1_4) + snf->quad_spi_op = true; + + return 0; +} + +static int mtk_snand_setup(struct mtk_snand *snf, + const struct snand_flash_info *snand_info) +{ + const struct snand_mem_org *memorg = &snand_info->memorg; + uint32_t i, msg_size, snfi_caps; + int ret; + + /* Calculate flash memory organization */ + snf->model = snand_info->model; + snf->writesize = memorg->pagesize; + snf->oobsize = memorg->sparesize; + snf->erasesize = snf->writesize * memorg->pages_per_block; + snf->die_size = (uint64_t)snf->erasesize * memorg->blocks_per_die; + snf->size = snf->die_size * memorg->ndies; + snf->num_dies = memorg->ndies; + + snf->writesize_mask = snf->writesize - 1; + snf->erasesize_mask = snf->erasesize - 1; + snf->die_mask = snf->die_size - 1; + + snf->writesize_shift = ffs(snf->writesize) - 1; + snf->erasesize_shift = ffs(snf->erasesize) - 1; + snf->die_shift = mtk_snand_ffs64(snf->die_size) - 1; + + snf->select_die = snand_info->select_die; + + /* Determine opcodes for read from cache/program load */ + snfi_caps = SPI_IO_1_1_1 | SPI_IO_1_1_2 | SPI_IO_1_2_2; + if (snf->snfi_quad_spi) + snfi_caps |= SPI_IO_1_1_4 | SPI_IO_1_4_4; + + ret = mtk_snand_select_opcode_rfc(snf, snfi_caps, snand_info->cap_rd); + if (ret) + return ret; + + ret = mtk_snand_select_opcode_pl(snf, snfi_caps, snand_info->cap_pl); + if (ret) + return ret; + + /* ECC and page format */ + snf->ecc_steps = snf->writesize / snf->nfi_soc->sector_size; + if (snf->ecc_steps > snf->nfi_soc->max_sectors) { + snand_log_nfi(snf->pdev, "Page size %u is not supported\n", + snf->writesize); + return -ENOTSUPP; + } + + ret = mtk_snand_pagefmt_setup(snf); + if (ret) + return ret; + + msg_size = snf->nfi_soc->sector_size + snf->nfi_soc->fdm_ecc_size; + ret = mtk_ecc_setup(snf, snf->nfi_base + NFI_FDM0L, + snf->spare_per_sector - snf->nfi_soc->fdm_size, + msg_size); + if (ret) + return ret; + + nfi_write16(snf, NFI_CNFG, 0); + + /* Tuning options */ + nfi_write16(snf, NFI_DEBUG_CON1, WBUF_EN); + nfi_write32(snf, SNF_DLY_CTL3, (40 << SFCK_SAM_DLY_S)); + + /* Interrupts */ + nfi_read32(snf, NFI_INTR_STA); + nfi_write32(snf, NFI_INTR_EN, 0); + + /* Clear SNF done flag */ + nfi_rmw32(snf, SNF_STA_CTL1, 0, CUS_READ_DONE | CUS_PG_DONE); + nfi_write32(snf, SNF_STA_CTL1, 0); + + /* Initialization on all dies */ + for (i = 0; i < snf->num_dies; i++) { + mtk_snand_select_die(snf, i); + + /* Disable On-Die ECC engine */ + ret = mtk_snand_ondie_ecc_control(snf, false); + if (ret) + return ret; + + /* Disable block protection */ + mtk_snand_unlock(snf); + + /* Enable/disable quad-spi */ + mtk_snand_qspi_control(snf, snf->quad_spi_op); + } + + mtk_snand_select_die(snf, 0); + + return 0; +} + +static int mtk_snand_id_probe(struct mtk_snand *snf, + const struct snand_flash_info **snand_info) +{ + uint8_t id[4], op[2]; + int ret; + + /* Read SPI-NAND JEDEC ID, OP + dummy/addr + ID */ + op[0] = SNAND_CMD_READID; + op[1] = 0; + ret = mtk_snand_mac_io(snf, op, 2, id, sizeof(id)); + if (ret) + return ret; + + *snand_info = snand_flash_id_lookup(SNAND_ID_DYMMY, id); + if (*snand_info) + return 0; + + /* Read SPI-NAND JEDEC ID, OP + ID */ + op[0] = SNAND_CMD_READID; + ret = mtk_snand_mac_io(snf, op, 1, id, sizeof(id)); + if (ret) + return ret; + + *snand_info = snand_flash_id_lookup(SNAND_ID_DYMMY, id); + if (*snand_info) + return 0; + + snand_log_chip(snf->pdev, + "Unrecognized SPI-NAND ID: %02x %02x %02x %02x\n", + id[0], id[1], id[2], id[3]); + + return -EINVAL; +} + +int mtk_snand_init(void *dev, const struct mtk_snand_platdata *pdata, + struct mtk_snand **psnf) +{ + const struct snand_flash_info *snand_info; + uint32_t rawpage_size, sect_bf_size; + struct mtk_snand tmpsnf, *snf; + int ret; + + if (!pdata || !psnf) + return -EINVAL; + + if (pdata->soc >= __SNAND_SOC_MAX) { + snand_log_chip(dev, "Invalid SOC %u for MTK-SNAND\n", + pdata->soc); + return -EINVAL; + } + + /* Dummy instance only for initial reset and id probe */ + tmpsnf.nfi_base = pdata->nfi_base; + tmpsnf.ecc_base = pdata->ecc_base; + tmpsnf.soc = pdata->soc; + tmpsnf.nfi_soc = &mtk_snand_socs[pdata->soc]; + tmpsnf.pdev = dev; + + /* Switch to SNFI mode */ + writel(SPI_MODE, tmpsnf.nfi_base + SNF_CFG); + + /* Reset SNFI & NFI */ + mtk_snand_mac_reset(&tmpsnf); + mtk_nfi_reset(&tmpsnf); + + /* Reset SPI-NAND chip */ + ret = mtk_snand_chip_reset(&tmpsnf); + if (ret) { + snand_log_chip(dev, "Failed to reset SPI-NAND chip\n"); + return ret; + } + + /* Probe SPI-NAND flash by JEDEC ID */ + ret = mtk_snand_id_probe(&tmpsnf, &snand_info); + if (ret) + return ret; + + rawpage_size = snand_info->memorg.pagesize + + snand_info->memorg.sparesize; + + sect_bf_size = mtk_snand_socs[pdata->soc].max_sectors * + sizeof(*snf->sect_bf); + + /* Allocate memory for instance and cache */ + snf = generic_mem_alloc(dev, + sizeof(*snf) + rawpage_size + sect_bf_size); + if (!snf) { + snand_log_chip(dev, "Failed to allocate memory for instance\n"); + return -ENOMEM; + } + + snf->sect_bf = (int *)((uintptr_t)snf + sizeof(*snf)); + snf->buf_cache = (uint8_t *)((uintptr_t)snf->sect_bf + sect_bf_size); + + /* Allocate memory for DMA buffer */ + snf->page_cache = dma_mem_alloc(dev, rawpage_size); + if (!snf->page_cache) { + generic_mem_free(dev, snf); + snand_log_chip(dev, + "Failed to allocate memory for DMA buffer\n"); + return -ENOMEM; + } + + /* Fill up instance */ + snf->pdev = dev; + snf->nfi_base = pdata->nfi_base; + snf->ecc_base = pdata->ecc_base; + snf->soc = pdata->soc; + snf->nfi_soc = &mtk_snand_socs[pdata->soc]; + snf->snfi_quad_spi = pdata->quad_spi; + + /* Initialize SNFI & ECC engine */ + ret = mtk_snand_setup(snf, snand_info); + if (ret) { + dma_mem_free(dev, snf->page_cache); + generic_mem_free(dev, snf); + return ret; + } + + *psnf = snf; + + return 0; +} + +int mtk_snand_cleanup(struct mtk_snand *snf) +{ + if (!snf) + return 0; + + dma_mem_free(snf->pdev, snf->page_cache); + generic_mem_free(snf->pdev, snf); + + return 0; +} diff --git a/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand.h b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand.h new file mode 100644 index 0000000000..73c5cc60c9 --- /dev/null +++ b/target/linux/mediatek/files-5.10/drivers/mtd/mtk-snand/mtk-snand.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao <weijie.gao@mediatek.com> + */ + +#ifndef _MTK_SNAND_H_ +#define _MTK_SNAND_H_ + +#ifndef PRIVATE_MTK_SNAND_HEADER +#include <stddef.h> +#include <stdint.h> +#include <stdbool.h> +#endif + +enum mtk_snand_soc { + SNAND_SOC_MT7622, + SNAND_SOC_MT7629, + + __SNAND_SOC_MAX +}; + +struct mtk_snand_platdata { + void *nfi_base; + void *ecc_base; + enum mtk_snand_soc soc; + bool quad_spi; +}; + +struct mtk_snand_chip_info { + const char *model; + uint64_t chipsize; + uint32_t blocksize; + uint32_t pagesize; + uint32_t sparesize; + uint32_t spare_per_sector; + uint32_t fdm_size; + uint32_t fdm_ecc_size; + uint32_t num_sectors; + uint32_t sector_size; + uint32_t ecc_strength; + uint32_t ecc_bytes; +}; + +struct mtk_snand; +struct snand_flash_info; + +int mtk_snand_init(void *dev, const struct mtk_snand_platdata *pdata, + struct mtk_snand **psnf); +int mtk_snand_cleanup(struct mtk_snand *snf); + +int mtk_snand_chip_reset(struct mtk_snand *snf); +int mtk_snand_read_page(struct mtk_snand *snf, uint64_t addr, void *buf, + void *oob, bool raw); +int mtk_snand_write_page(struct mtk_snand *snf, uint64_t addr, const void *buf, + const void *oob, bool raw); +int mtk_snand_erase_block(struct mtk_snand *snf, uint64_t addr); +int mtk_snand_block_isbad(struct mtk_snand *snf, uint64_t addr); +int mtk_snand_block_markbad(struct mtk_snand *snf, uint64_t addr); +int mtk_snand_fill_oob(struct mtk_snand *snf, uint8_t *oobraw, + const uint8_t *oobbuf, size_t ooblen); +int mtk_snand_transfer_oob(struct mtk_snand *snf, uint8_t *oobbuf, + size_t ooblen, const uint8_t *oobraw); +int mtk_snand_read_page_auto_oob(struct mtk_snand *snf, uint64_t addr, + void *buf, void *oob, size_t ooblen, + size_t *actualooblen, bool raw); +int mtk_snand_write_page_auto_oob(struct mtk_snand *snf, uint64_t addr, + const void *buf, const void *oob, + size_t ooblen, size_t *actualooblen, + bool raw); +int mtk_snand_get_chip_info(struct mtk_snand *snf, + struct mtk_snand_chip_info *info); +int mtk_snand_irq_process(struct mtk_snand *snf); + +#endif /* _MTK_SNAND_H_ */ diff --git a/target/linux/mediatek/patches-5.10/360-mtd-add-mtk-snand-driver.patch b/target/linux/mediatek/patches-5.10/360-mtd-add-mtk-snand-driver.patch new file mode 100644 index 0000000000..ebba6ffaad --- /dev/null +++ b/target/linux/mediatek/patches-5.10/360-mtd-add-mtk-snand-driver.patch @@ -0,0 +1,21 @@ +--- a/drivers/mtd/Kconfig ++++ b/drivers/mtd/Kconfig +@@ -238,6 +238,8 @@ source "drivers/mtd/ubi/Kconfig" + + source "drivers/mtd/hyperbus/Kconfig" + ++source "drivers/mtd/mtk-snand/Kconfig" ++ + source "drivers/mtd/composite/Kconfig" + + endif # MTD +--- a/drivers/mtd/Makefile ++++ b/drivers/mtd/Makefile +@@ -34,5 +34,7 @@ obj-$(CONFIG_MTD_SPI_NOR) += spi-nor/ + obj-$(CONFIG_MTD_UBI) += ubi/ + obj-$(CONFIG_MTD_HYPERBUS) += hyperbus/ + ++obj-$(CONFIG_MTK_SPI_NAND) += mtk-snand/ ++ + # Composite drivers must be loaded last + obj-y += composite/ |