123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238 |
- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright (C) 2005, Intec Automation Inc.
- * Copyright (C) 2014, Freescale Semiconductor, Inc.
- */
- #include <linux/mtd/spi-nor.h>
- #include "core.h"
- #define WINBOND_NOR_OP_RDEAR 0xc8 /* Read Extended Address Register */
- #define WINBOND_NOR_OP_WREAR 0xc5 /* Write Extended Address Register */
- #define WINBOND_NOR_WREAR_OP(buf) \
- SPI_MEM_OP(SPI_MEM_OP_CMD(WINBOND_NOR_OP_WREAR, 0), \
- SPI_MEM_OP_NO_ADDR, \
- SPI_MEM_OP_NO_DUMMY, \
- SPI_MEM_OP_DATA_OUT(1, buf, 0))
- static int
- w25q256_post_bfpt_fixups(struct spi_nor *nor,
- const struct sfdp_parameter_header *bfpt_header,
- const struct sfdp_bfpt *bfpt)
- {
- /*
- * W25Q256JV supports 4B opcodes but W25Q256FV does not.
- * Unfortunately, Winbond has re-used the same JEDEC ID for both
- * variants which prevents us from defining a new entry in the parts
- * table.
- * To differentiate between W25Q256JV and W25Q256FV check SFDP header
- * version: only JV has JESD216A compliant structure (version 5).
- */
- if (bfpt_header->major == SFDP_JESD216_MAJOR &&
- bfpt_header->minor == SFDP_JESD216A_MINOR)
- nor->flags |= SNOR_F_4B_OPCODES;
- return 0;
- }
- static const struct spi_nor_fixups w25q256_fixups = {
- .post_bfpt = w25q256_post_bfpt_fixups,
- };
- static const struct flash_info winbond_nor_parts[] = {
- /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */
- { "w25x05", INFO(0xef3010, 0, 64 * 1024, 1)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25x10", INFO(0xef3011, 0, 64 * 1024, 2)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25x20", INFO(0xef3012, 0, 64 * 1024, 4)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25x40", INFO(0xef3013, 0, 64 * 1024, 8)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25x80", INFO(0xef3014, 0, 64 * 1024, 16)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25x16", INFO(0xef3015, 0, 64 * 1024, 32)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q16dw", INFO(0xef6015, 0, 64 * 1024, 32)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25x32", INFO(0xef3016, 0, 64 * 1024, 64)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q16jv-im/jm", INFO(0xef7015, 0, 64 * 1024, 32)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25q20cl", INFO(0xef4012, 0, 64 * 1024, 4)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q20bw", INFO(0xef5012, 0, 64 * 1024, 4)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q20ew", INFO(0xef6012, 0, 64 * 1024, 4)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q32", INFO(0xef4016, 0, 64 * 1024, 64)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
- OTP_INFO(256, 3, 0x1000, 0x1000) },
- { "w25q32jv", INFO(0xef7016, 0, 64 * 1024, 64)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25q32jwm", INFO(0xef8016, 0, 64 * 1024, 64)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
- OTP_INFO(256, 3, 0x1000, 0x1000) },
- { "w25q64jwm", INFO(0xef8017, 0, 64 * 1024, 128)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25q128jwm", INFO(0xef8018, 0, 64 * 1024, 256)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25q256jwm", INFO(0xef8019, 0, 64 * 1024, 512)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25x64", INFO(0xef3017, 0, 64 * 1024, 128)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q64", INFO(0xef4017, 0, 64 * 1024, 128)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25q64dw", INFO(0xef6017, 0, 64 * 1024, 128)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25q64jvm", INFO(0xef7017, 0, 64 * 1024, 128)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q128fw", INFO(0xef6018, 0, 64 * 1024, 256)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25q128jv", INFO(0xef7018, 0, 64 * 1024, 256)
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25q80", INFO(0xef5014, 0, 64 * 1024, 16)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16)
- NO_SFDP_FLAGS(SECT_4K) },
- { "w25q128", INFO(0xef4018, 0, 0, 0)
- PARSE_SFDP
- FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
- { "w25q256", INFO(0xef4019, 0, 64 * 1024, 512)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
- .fixups = &w25q256_fixups },
- { "w25q256jvm", INFO(0xef7019, 0, 64 * 1024, 512)
- PARSE_SFDP },
- { "w25q256jw", INFO(0xef6019, 0, 64 * 1024, 512)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- { "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_QUAD_READ |
- SPI_NOR_DUAL_READ) },
- { "w25q512nwm", INFO(0xef8020, 0, 64 * 1024, 1024)
- PARSE_SFDP
- OTP_INFO(256, 3, 0x1000, 0x1000) },
- { "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024)
- NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
- SPI_NOR_QUAD_READ) },
- };
- /**
- * winbond_nor_write_ear() - Write Extended Address Register.
- * @nor: pointer to 'struct spi_nor'.
- * @ear: value to write to the Extended Address Register.
- *
- * Return: 0 on success, -errno otherwise.
- */
- static int winbond_nor_write_ear(struct spi_nor *nor, u8 ear)
- {
- int ret;
- nor->bouncebuf[0] = ear;
- if (nor->spimem) {
- struct spi_mem_op op = WINBOND_NOR_WREAR_OP(nor->bouncebuf);
- spi_nor_spimem_setup_op(nor, &op, nor->reg_proto);
- ret = spi_mem_exec_op(nor->spimem, &op);
- } else {
- ret = spi_nor_controller_ops_write_reg(nor,
- WINBOND_NOR_OP_WREAR,
- nor->bouncebuf, 1);
- }
- if (ret)
- dev_dbg(nor->dev, "error %d writing EAR\n", ret);
- return ret;
- }
- /**
- * winbond_nor_set_4byte_addr_mode() - Set 4-byte address mode for Winbond
- * flashes.
- * @nor: pointer to 'struct spi_nor'.
- * @enable: true to enter the 4-byte address mode, false to exit the 4-byte
- * address mode.
- *
- * Return: 0 on success, -errno otherwise.
- */
- static int winbond_nor_set_4byte_addr_mode(struct spi_nor *nor, bool enable)
- {
- int ret;
- ret = spi_nor_set_4byte_addr_mode(nor, enable);
- if (ret || enable)
- return ret;
- /*
- * On Winbond W25Q256FV, leaving 4byte mode causes the Extended Address
- * Register to be set to 1, so all 3-byte-address reads come from the
- * second 16M. We must clear the register to enable normal behavior.
- */
- ret = spi_nor_write_enable(nor);
- if (ret)
- return ret;
- ret = winbond_nor_write_ear(nor, 0);
- if (ret)
- return ret;
- return spi_nor_write_disable(nor);
- }
- static const struct spi_nor_otp_ops winbond_nor_otp_ops = {
- .read = spi_nor_otp_read_secr,
- .write = spi_nor_otp_write_secr,
- .erase = spi_nor_otp_erase_secr,
- .lock = spi_nor_otp_lock_sr2,
- .is_locked = spi_nor_otp_is_locked_sr2,
- };
- static void winbond_nor_default_init(struct spi_nor *nor)
- {
- nor->params->set_4byte_addr_mode = winbond_nor_set_4byte_addr_mode;
- }
- static void winbond_nor_late_init(struct spi_nor *nor)
- {
- if (nor->params->otp.org->n_regions)
- nor->params->otp.ops = &winbond_nor_otp_ops;
- }
- static const struct spi_nor_fixups winbond_nor_fixups = {
- .default_init = winbond_nor_default_init,
- .late_init = winbond_nor_late_init,
- };
- const struct spi_nor_manufacturer spi_nor_winbond = {
- .name = "winbond",
- .parts = winbond_nor_parts,
- .nparts = ARRAY_SIZE(winbond_nor_parts),
- .fixups = &winbond_nor_fixups,
- };
|