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Mon, 2 Mar 2020 18:07:56 +0000 From: To: , , Subject: [PATCH 20/23] mtd: spi-nor: Move Xilinx bits out of core.c Thread-Topic: [PATCH 20/23] mtd: spi-nor: Move Xilinx bits out of core.c Thread-Index: AQHV8L1/nqXX3HpkeUKEtq8g2RPGbA== Date: Mon, 2 Mar 2020 18:07:56 +0000 Message-ID: <20200302180730.1886678-21-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: 222e2005-7889-41e4-0270-08d7bed4a296 x-ms-traffictypediagnostic: MN2PR11MB4142: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; 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)(86362001)(54906003)(6506007)(66556008)(5660300002)(66476007)(7406005)(1076003)(7416002)(81156014)(81166006)(110136005)(8676002); 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While at it, remove the SPI_S3AN flag which is now useless. Signed-off-by: Boris Brezillon Signed-off-by: Tudor Ambarus --- drivers/mtd/spi-nor/Makefile | 1 + drivers/mtd/spi-nor/core.c | 76 +---------------------------- drivers/mtd/spi-nor/core.h | 13 +---- drivers/mtd/spi-nor/xilinx.c | 94 ++++++++++++++++++++++++++++++++++++ 4 files changed, 98 insertions(+), 86 deletions(-) create mode 100644 drivers/mtd/spi-nor/xilinx.c diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile index cd8d95b727c9..fa03513dd160 100644 --- a/drivers/mtd/spi-nor/Makefile +++ b/drivers/mtd/spi-nor/Makefile @@ -15,4 +15,5 @@ spi-nor-objs += micron-st.o spi-nor-objs += spansion.o spi-nor-objs += sst.o spi-nor-objs += winbond.o +spi-nor-objs += xilinx.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 1776fb8eb66b..3e9f6bafa01b 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -1117,26 +1117,6 @@ void spi_nor_unlock_and_unprep(struct spi_nor *nor) mutex_unlock(&nor->lock); } -/* - * This code converts an address to the Default Address Mode, that has non - * power of two page sizes. We must support this mode because it is the default - * mode supported by Xilinx tools, it can access the whole flash area and - * changing over to the Power-of-two mode is irreversible and corrupts the - * original data. - * Addr can safely be unsigned int, the biggest S3AN device is smaller than - * 4 MiB. - */ -static u32 s3an_convert_addr(struct spi_nor *nor, u32 addr) -{ - u32 offset, page; - - offset = addr % nor->page_size; - page = addr / nor->page_size; - page <<= (nor->page_size > 512) ? 10 : 9; - - return page | offset; -} - static u32 spi_nor_convert_addr(struct spi_nor *nor, loff_t addr) { if (!nor->params.convert_addr) @@ -1985,13 +1965,6 @@ 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[] = { - /* Xilinx S3AN Internal Flash */ - { "3S50AN", S3AN_INFO(0x1f2200, 64, 264) }, - { "3S200AN", S3AN_INFO(0x1f2400, 256, 264) }, - { "3S400AN", S3AN_INFO(0x1f2400, 256, 264) }, - { "3S700AN", S3AN_INFO(0x1f2500, 512, 264) }, - { "3S1400AN", S3AN_INFO(0x1f2600, 512, 528) }, - /* XMC (Wuhan Xinxin Semiconductor Manufacturing Corp.) */ { "XM25QH64A", INFO(0x207017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, { "XM25QH128A", INFO(0x207018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, @@ -2014,6 +1987,7 @@ static const struct spi_nor_manufacturer *manufacturers[] = { &spi_nor_spansion, &spi_nor_sst, &spi_nor_winbond, + &spi_nor_xilinx, }; static const struct flash_info * @@ -2199,46 +2173,6 @@ static int spi_nor_check(struct spi_nor *nor) return 0; } -static int s3an_nor_setup(struct spi_nor *nor, - const struct spi_nor_hwcaps *hwcaps) -{ - int ret; - - ret = spi_nor_xread_sr(nor, nor->bouncebuf); - if (ret) - return ret; - - nor->erase_opcode = SPINOR_OP_XSE; - nor->program_opcode = SPINOR_OP_XPP; - nor->read_opcode = SPINOR_OP_READ; - nor->flags |= SNOR_F_NO_OP_CHIP_ERASE; - - /* - * This flashes have a page size of 264 or 528 bytes (known as - * Default addressing mode). It can be changed to a more standard - * Power of two mode where the page size is 256/512. This comes - * with a price: there is 3% less of space, the data is corrupted - * and the page size cannot be changed back to default addressing - * mode. - * - * The current addressing mode can be read from the XRDSR register - * and should not be changed, because is a destructive operation. - */ - if (nor->bouncebuf[0] & XSR_PAGESIZE) { - /* Flash in Power of 2 mode */ - nor->page_size = (nor->page_size == 264) ? 256 : 512; - nor->mtd.writebufsize = nor->page_size; - nor->mtd.size = 8 * nor->page_size * nor->info->n_sectors; - nor->mtd.erasesize = 8 * nor->page_size; - } else { - /* Flash in Default addressing mode */ - nor->params.convert_addr = s3an_convert_addr; - nor->mtd.erasesize = nor->info->sector_size; - } - - return 0; -} - static void spi_nor_set_read_settings(struct spi_nor_read_command *read, u8 num_mode_clocks, @@ -2837,11 +2771,6 @@ static void spi_nor_info_init_params(struct spi_nor *nor) spi_nor_init_uniform_erase_map(map, erase_mask, params->size); } -static void s3an_post_sfdp_fixups(struct spi_nor *nor) -{ - nor->params.setup = s3an_nor_setup; -} - /** * spi_nor_post_sfdp_fixups() - Updates the flash's parameters and settings * after SFDP has been parsed (is also called for SPI NORs that do not @@ -2854,9 +2783,6 @@ static void s3an_post_sfdp_fixups(struct spi_nor *nor) */ static void spi_nor_post_sfdp_fixups(struct spi_nor *nor) { - if (nor->info->flags & SPI_S3AN) - s3an_post_sfdp_fixups(nor); - if (nor->manufacturer && nor->manufacturer->fixups && nor->manufacturer->fixups->post_sfdp) nor->manufacturer->fixups->post_sfdp(nor); diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h index 9eb46900bc72..abd5332afaf5 100644 --- a/drivers/mtd/spi-nor/core.h +++ b/drivers/mtd/spi-nor/core.h @@ -73,16 +73,6 @@ struct flash_info { #define SPI_NOR_XSR_RDY BIT(10) /* * S3AN flashes have specific opcode to * read the status register. - * Flags SPI_NOR_XSR_RDY and SPI_S3AN - * use the same bit as one implies the - * other, but we will get rid of - * SPI_S3AN soon. - */ -#define SPI_S3AN BIT(10) /* - * Xilinx Spartan 3AN In-System Flash - * (MFR cannot be used for probing - * because it has the same value as - * ATMEL flashes) */ #define SPI_NOR_4B_OPCODES BIT(11) /* * Use dedicated 4byte address op codes @@ -150,7 +140,7 @@ struct flash_info { .n_sectors = (_n_sectors), \ .page_size = _page_size, \ .addr_width = 3, \ - .flags = SPI_NOR_NO_FR | SPI_S3AN, + .flags = SPI_NOR_NO_FR | SPI_NOR_XSR_RDY, /** * struct spi_nor_manufacturer - SPI NOR manufacturer object @@ -182,6 +172,7 @@ 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; +extern const struct spi_nor_manufacturer spi_nor_xilinx; 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/xilinx.c b/drivers/mtd/spi-nor/xilinx.c new file mode 100644 index 000000000000..fcf635d89f65 --- /dev/null +++ b/drivers/mtd/spi-nor/xilinx.c @@ -0,0 +1,94 @@ +// 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 xilinx_parts[] = { + /* Xilinx S3AN Internal Flash */ + { "3S50AN", S3AN_INFO(0x1f2200, 64, 264) }, + { "3S200AN", S3AN_INFO(0x1f2400, 256, 264) }, + { "3S400AN", S3AN_INFO(0x1f2400, 256, 264) }, + { "3S700AN", S3AN_INFO(0x1f2500, 512, 264) }, + { "3S1400AN", S3AN_INFO(0x1f2600, 512, 528) }, +}; + +/* + * This code converts an address to the Default Address Mode, that has non + * power of two page sizes. We must support this mode because it is the default + * mode supported by Xilinx tools, it can access the whole flash area and + * changing over to the Power-of-two mode is irreversible and corrupts the + * original data. + * Addr can safely be unsigned int, the biggest S3AN device is smaller than + * 4 MiB. + */ +static u32 s3an_convert_addr(struct spi_nor *nor, u32 addr) +{ + u32 offset, page; + + offset = addr % nor->page_size; + page = addr / nor->page_size; + page <<= (nor->page_size > 512) ? 10 : 9; + + return page | offset; +} + +static int xilinx_nor_setup(struct spi_nor *nor, + const struct spi_nor_hwcaps *hwcaps) +{ + int ret; + + ret = spi_nor_xread_sr(nor, nor->bouncebuf); + if (ret) + return ret; + + nor->erase_opcode = SPINOR_OP_XSE; + nor->program_opcode = SPINOR_OP_XPP; + nor->read_opcode = SPINOR_OP_READ; + nor->flags |= SNOR_F_NO_OP_CHIP_ERASE; + + /* + * This flashes have a page size of 264 or 528 bytes (known as + * Default addressing mode). It can be changed to a more standard + * Power of two mode where the page size is 256/512. This comes + * with a price: there is 3% less of space, the data is corrupted + * and the page size cannot be changed back to default addressing + * mode. + * + * The current addressing mode can be read from the XRDSR register + * and should not be changed, because is a destructive operation. + */ + if (nor->bouncebuf[0] & XSR_PAGESIZE) { + /* Flash in Power of 2 mode */ + nor->page_size = (nor->page_size == 264) ? 256 : 512; + nor->mtd.writebufsize = nor->page_size; + nor->mtd.size = 8 * nor->page_size * nor->info->n_sectors; + nor->mtd.erasesize = 8 * nor->page_size; + } else { + /* Flash in Default addressing mode */ + nor->params.convert_addr = s3an_convert_addr; + nor->mtd.erasesize = nor->info->sector_size; + } + + return 0; +} + +static void xilinx_post_sfdp_fixups(struct spi_nor *nor) +{ + nor->params.setup = xilinx_nor_setup; +} + +static const struct spi_nor_fixups xilinx_fixups = { + .post_sfdp = xilinx_post_sfdp_fixups, +}; + +const struct spi_nor_manufacturer spi_nor_xilinx = { + .name = "xilinx", + .parts = xilinx_parts, + .nparts = ARRAY_SIZE(xilinx_parts), + .fixups = &xilinx_fixups, +};