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