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Mon, 2 Mar 2020 18:07:55 +0000 From: To: , , Subject: [PATCH 18/23] mtd: spi-nor: Move Winbond bits out of core.c Thread-Topic: [PATCH 18/23] mtd: spi-nor: Move Winbond bits out of core.c Thread-Index: AQHV8L1/zTBZ4xvLfkW9opCCEvBpqw== Date: Mon, 2 Mar 2020 18:07:54 +0000 Message-ID: <20200302180730.1886678-19-tudor.ambarus@microchip.com> References: <20200302180730.1886678-1-tudor.ambarus@microchip.com> In-Reply-To: <20200302180730.1886678-1-tudor.ambarus@microchip.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [94.177.32.156] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: f10e74ed-fd9e-4ff0-ed6e-08d7bed4a21c x-ms-traffictypediagnostic: MN2PR11MB4142: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:9508; x-forefront-prvs: 033054F29A x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(346002)(366004)(39860400002)(136003)(396003)(376002)(189003)(199004)(36756003)(26005)(66446008)(107886003)(6486002)(186003)(2616005)(4326008)(478600001)(6512007)(91956017)(64756008)(66946007)(2906002)(71200400001)(76116006)(8936002)(316002)(30864003)(86362001)(54906003)(6506007)(66556008)(5660300002)(66476007)(7406005)(1076003)(7416002)(81156014)(81166006)(110136005)(8676002); 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Signed-off-by: Boris Brezillon Signed-off-by: Tudor Ambarus --- drivers/mtd/spi-nor/Makefile | 1 + drivers/mtd/spi-nor/core.c | 115 +--------------------------------- drivers/mtd/spi-nor/core.h | 1 + drivers/mtd/spi-nor/winbond.c | 113 +++++++++++++++++++++++++++++++++ 4 files changed, 116 insertions(+), 114 deletions(-) create mode 100644 drivers/mtd/spi-nor/winbond.c diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile index ef7afc654a15..33b6f834a14f 100644 --- a/drivers/mtd/spi-nor/Makefile +++ b/drivers/mtd/spi-nor/Makefile @@ -13,4 +13,5 @@ spi-nor-objs += macronix.o spi-nor-objs += micron-st.o spi-nor-objs += spansion.o spi-nor-objs += sst.o +spi-nor-objs += winbond.o obj-$(CONFIG_MTD_SPI_NOR) += spi-nor.o diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 9ff0b09887b4..c99f063b0781 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -487,38 +487,6 @@ int spi_nor_write_ear(struct spi_nor *nor, u8 ear) return ret; } -/** - * winbond_set_4byte() - 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_set_4byte(struct spi_nor *nor, bool enable) -{ - int ret; - - ret = spi_nor_en4_ex4_set_4byte(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 = spi_nor_write_ear(nor, 0); - if (ret) - return ret; - - return spi_nor_write_disable(nor); -} - /** * spi_nor_xread_sr() - Read the Status Register on S3AN flashes. * @nor: pointer to 'struct spi_nor'. @@ -2017,73 +1985,6 @@ int spi_nor_sr2_bit7_quad_enable(struct spi_nor *nor) * old entries may be missing 4K flag. */ static const struct flash_info spi_nor_ids[] = { - /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */ - { "w25x05", INFO(0xef3010, 0, 64 * 1024, 1, SECT_4K) }, - { "w25x10", INFO(0xef3011, 0, 64 * 1024, 2, SECT_4K) }, - { "w25x20", INFO(0xef3012, 0, 64 * 1024, 4, SECT_4K) }, - { "w25x40", INFO(0xef3013, 0, 64 * 1024, 8, SECT_4K) }, - { "w25x80", INFO(0xef3014, 0, 64 * 1024, 16, SECT_4K) }, - { "w25x16", INFO(0xef3015, 0, 64 * 1024, 32, SECT_4K) }, - { - "w25q16dw", INFO(0xef6015, 0, 64 * 1024, 32, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) - }, - { "w25x32", INFO(0xef3016, 0, 64 * 1024, 64, SECT_4K) }, - { - "w25q16jv-im/jm", INFO(0xef7015, 0, 64 * 1024, 32, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) - }, - { "w25q20cl", INFO(0xef4012, 0, 64 * 1024, 4, SECT_4K) }, - { "w25q20bw", INFO(0xef5012, 0, 64 * 1024, 4, SECT_4K) }, - { "w25q20ew", INFO(0xef6012, 0, 64 * 1024, 4, SECT_4K) }, - { "w25q32", INFO(0xef4016, 0, 64 * 1024, 64, SECT_4K) }, - { - "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) - }, - { - "w25q32jv", INFO(0xef7016, 0, 64 * 1024, 64, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) - }, - { - "w25q32jwm", INFO(0xef8016, 0, 64 * 1024, 64, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) - }, - { "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) }, - { "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) }, - { - "w25q64dw", INFO(0xef6017, 0, 64 * 1024, 128, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) - }, - { - "w25q128fw", INFO(0xef6018, 0, 64 * 1024, 256, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) - }, - { - "w25q128jv", INFO(0xef7018, 0, 64 * 1024, 256, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) - }, - { "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) }, - { "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K) }, - { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) }, - { "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | - SPI_NOR_4B_OPCODES) }, - { "w25q256jvm", INFO(0xef7019, 0, 64 * 1024, 512, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, - { "w25q256jw", INFO(0xef6019, 0, 64 * 1024, 512, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, - { "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024, - SECT_4K | SPI_NOR_QUAD_READ | SPI_NOR_DUAL_READ) }, - /* Catalyst / On Semiconductor -- non-JEDEC */ { "cat25c11", CAT25_INFO( 16, 8, 16, 1, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) }, { "cat25c03", CAT25_INFO( 32, 8, 16, 2, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) }, @@ -2118,6 +2019,7 @@ static const struct spi_nor_manufacturer *manufacturers[] = { &spi_nor_st, &spi_nor_spansion, &spi_nor_sst, + &spi_nor_winbond, }; static const struct flash_info * @@ -2811,11 +2713,6 @@ static int spi_nor_setup(struct spi_nor *nor, return nor->params.setup(nor, hwcaps); } -static void winbond_set_default_init(struct spi_nor *nor) -{ - nor->params.set_4byte = winbond_set_4byte; -} - /** * spi_nor_manufacturer_init_params() - Initialize the flash's parameters and * settings based on MFR register and ->default_init() hook. @@ -2823,16 +2720,6 @@ static void winbond_set_default_init(struct spi_nor *nor) */ static void spi_nor_manufacturer_init_params(struct spi_nor *nor) { - /* Init flash parameters based on MFR */ - switch (JEDEC_MFR(nor->info)) { - case SNOR_MFR_WINBOND: - winbond_set_default_init(nor); - break; - - default: - break; - } - if (nor->manufacturer && nor->manufacturer->fixups && nor->manufacturer->fixups->default_init) nor->manufacturer->fixups->default_init(nor); diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h index 7bc0f6a15b36..01e0b8e2b191 100644 --- a/drivers/mtd/spi-nor/core.h +++ b/drivers/mtd/spi-nor/core.h @@ -180,6 +180,7 @@ extern const struct spi_nor_manufacturer spi_nor_micron; extern const struct spi_nor_manufacturer spi_nor_st; extern const struct spi_nor_manufacturer spi_nor_spansion; extern const struct spi_nor_manufacturer spi_nor_sst; +extern const struct spi_nor_manufacturer spi_nor_winbond; int spi_nor_write_enable(struct spi_nor *nor); int spi_nor_write_disable(struct spi_nor *nor); diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c new file mode 100644 index 000000000000..1e77dffbf729 --- /dev/null +++ b/drivers/mtd/spi-nor/winbond.c @@ -0,0 +1,113 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2005, Intec Automation Inc. + * Copyright (C) 2014, Freescale Semiconductor, Inc. + */ + +#include + +#include "core.h" + +static const struct flash_info winbond_parts[] = { + /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */ + { "w25x05", INFO(0xef3010, 0, 64 * 1024, 1, SECT_4K) }, + { "w25x10", INFO(0xef3011, 0, 64 * 1024, 2, SECT_4K) }, + { "w25x20", INFO(0xef3012, 0, 64 * 1024, 4, SECT_4K) }, + { "w25x40", INFO(0xef3013, 0, 64 * 1024, 8, SECT_4K) }, + { "w25x80", INFO(0xef3014, 0, 64 * 1024, 16, SECT_4K) }, + { "w25x16", INFO(0xef3015, 0, 64 * 1024, 32, SECT_4K) }, + { "w25q16dw", INFO(0xef6015, 0, 64 * 1024, 32, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, + { "w25x32", INFO(0xef3016, 0, 64 * 1024, 64, SECT_4K) }, + { "w25q16jv-im/jm", INFO(0xef7015, 0, 64 * 1024, 32, + SECT_4K | SPI_NOR_DUAL_READ | + SPI_NOR_QUAD_READ | SPI_NOR_HAS_LOCK | + SPI_NOR_HAS_TB) }, + { "w25q20cl", INFO(0xef4012, 0, 64 * 1024, 4, SECT_4K) }, + { "w25q20bw", INFO(0xef5012, 0, 64 * 1024, 4, SECT_4K) }, + { "w25q20ew", INFO(0xef6012, 0, 64 * 1024, 4, SECT_4K) }, + { "w25q32", INFO(0xef4016, 0, 64 * 1024, 64, SECT_4K) }, + { "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, + { "w25q32jv", INFO(0xef7016, 0, 64 * 1024, 64, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) + }, + { "w25q32jwm", INFO(0xef8016, 0, 64 * 1024, 64, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, + { "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) }, + { "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) }, + { "w25q64dw", INFO(0xef6017, 0, 64 * 1024, 128, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, + { "w25q128fw", INFO(0xef6018, 0, 64 * 1024, 256, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, + { "w25q128jv", INFO(0xef7018, 0, 64 * 1024, 256, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) }, + { "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) }, + { "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K) }, + { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) }, + { "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_4B_OPCODES) }, + { "w25q256jvm", INFO(0xef7019, 0, 64 * 1024, 512, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, + { "w25q256jw", INFO(0xef6019, 0, 64 * 1024, 512, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, + { "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024, + SECT_4K | SPI_NOR_QUAD_READ | SPI_NOR_DUAL_READ) }, +}; + +/** + * winbond_set_4byte() - 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_set_4byte(struct spi_nor *nor, bool enable) +{ + int ret; + + ret = spi_nor_en4_ex4_set_4byte(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 = spi_nor_write_ear(nor, 0); + if (ret) + return ret; + + return spi_nor_write_disable(nor); +} + +static void winbond_default_init(struct spi_nor *nor) +{ + nor->params.set_4byte = winbond_set_4byte; +} + +static const struct spi_nor_fixups winbond_fixups = { + .default_init = winbond_default_init, +}; + +const struct spi_nor_manufacturer spi_nor_winbond = { + .name = "winbond", + .parts = winbond_parts, + .nparts = ARRAY_SIZE(winbond_parts), + .fixups = &winbond_fixups, +}; +