diff options
Diffstat (limited to 'package/boot/uboot-lantiq/patches/.svn/text-base/0016-sf-add-MTD-layer-driver-for-SPI-flash-devices.patch.svn-base')
| -rw-r--r-- | package/boot/uboot-lantiq/patches/.svn/text-base/0016-sf-add-MTD-layer-driver-for-SPI-flash-devices.patch.svn-base | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/package/boot/uboot-lantiq/patches/.svn/text-base/0016-sf-add-MTD-layer-driver-for-SPI-flash-devices.patch.svn-base b/package/boot/uboot-lantiq/patches/.svn/text-base/0016-sf-add-MTD-layer-driver-for-SPI-flash-devices.patch.svn-base new file mode 100644 index 0000000..a9ee560 --- /dev/null +++ b/package/boot/uboot-lantiq/patches/.svn/text-base/0016-sf-add-MTD-layer-driver-for-SPI-flash-devices.patch.svn-base @@ -0,0 +1,133 @@ +From 7f6ded11965b09daf6da44d4fa98da17b9fba36c Mon Sep 17 00:00:00 2001 +From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> +Date: Tue, 6 Nov 2012 19:41:26 +0100 +Subject: sf: add MTD layer driver for SPI flash devices + +Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> + +--- a/drivers/mtd/spi/Makefile ++++ b/drivers/mtd/spi/Makefile +@@ -30,6 +30,7 @@ COBJS-$(CONFIG_SPL_SPI_LOAD) += spi_spl_ + endif + + COBJS-$(CONFIG_SPI_FLASH) += spi_flash.o ++COBJS-$(CONFIG_SPI_FLASH_MTD) += spi_flash_mtd.o + COBJS-$(CONFIG_SPI_FLASH_ATMEL) += atmel.o + COBJS-$(CONFIG_SPI_FLASH_EON) += eon.o + COBJS-$(CONFIG_SPI_FLASH_MACRONIX) += macronix.o +--- a/drivers/mtd/spi/spi_flash_internal.h ++++ b/drivers/mtd/spi/spi_flash_internal.h +@@ -122,6 +122,9 @@ static inline int spi_flash_set_4byte_mo + } + #endif + ++/* SPI flash MTD adapter init */ ++int spi_flash_mtd_init(struct spi_flash *flash); ++ + /* Manufacturer-specific probe functions */ + int spi_flash_probe_spansion(struct spi_flash *flash, u8 *idcode); + int spi_flash_probe_atmel(struct spi_flash *flash, u8 *idcode); +--- /dev/null ++++ b/drivers/mtd/spi/spi_flash_mtd.c +@@ -0,0 +1,101 @@ ++/* ++ * (C) Copyright 2012 Daniel Schwierzeck, daniel.schwierzeck@gmail.com ++ * ++ * MTD layer driver for SPI flash devices ++ * ++ * This file is released under the terms of GPL v2 and any later version. ++ * See the file COPYING in the root directory of the source tree for details. ++ */ ++ ++#include <common.h> ++#include <malloc.h> ++#include <asm/errno.h> ++#include <linux/mtd/mtd.h> ++#include <spi_flash.h> ++ ++static struct mtd_info sf_mtd_info; ++static char sf_mtd_name[8]; ++ ++static int spi_flash_mtd_erase(struct mtd_info *mtd, struct erase_info *instr) ++{ ++ struct spi_flash *flash = mtd->priv; ++ int err; ++ ++ instr->state = MTD_ERASING; ++ ++ err = spi_flash_erase(flash, instr->addr, instr->len); ++ if (err) { ++ instr->state = MTD_ERASE_FAILED; ++ instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN; ++ return -EIO; ++ } ++ ++ instr->state = MTD_ERASE_DONE; ++ mtd_erase_callback(instr); ++ ++ return 0; ++} ++ ++static int spi_flash_mtd_read(struct mtd_info *mtd, loff_t from, size_t len, ++ size_t *retlen, u_char *buf) ++{ ++ struct spi_flash *flash = mtd->priv; ++ int err; ++ ++ err = spi_flash_read(flash, from, len, buf); ++ if (!err) ++ *retlen = len; ++ ++ return err; ++} ++ ++static int spi_flash_mtd_write(struct mtd_info *mtd, loff_t to, size_t len, ++ size_t *retlen, const u_char *buf) ++{ ++ struct spi_flash *flash = mtd->priv; ++ int err; ++ ++ err = spi_flash_write(flash, to, len, buf); ++ if (!err) ++ *retlen = len; ++ ++ return err; ++} ++ ++static void spi_flash_mtd_sync(struct mtd_info *mtd) ++{ ++} ++ ++static int spi_flash_mtd_number(void) ++{ ++#ifdef CONFIG_SYS_MAX_FLASH_BANKS ++ return CONFIG_SYS_MAX_FLASH_BANKS; ++#else ++ return 0; ++#endif ++} ++ ++int spi_flash_mtd_init(struct spi_flash *flash) ++{ ++ memset(&sf_mtd_info, 0, sizeof(sf_mtd_info)); ++ sprintf(sf_mtd_name, "nor%d", spi_flash_mtd_number()); ++ ++ sf_mtd_info.name = sf_mtd_name; ++ sf_mtd_info.type = MTD_NORFLASH; ++ sf_mtd_info.flags = MTD_CAP_NORFLASH; ++ sf_mtd_info.writesize = 1; ++ ++ sf_mtd_info.erase = spi_flash_mtd_erase; ++ sf_mtd_info.read = spi_flash_mtd_read; ++ sf_mtd_info.write = spi_flash_mtd_write; ++ sf_mtd_info.sync = spi_flash_mtd_sync; ++ ++ sf_mtd_info.size = flash->size; ++ sf_mtd_info.priv = flash; ++ ++ /* Only uniform flash devices for now */ ++ sf_mtd_info.numeraseregions = 0; ++ sf_mtd_info.erasesize = flash->sector_size; ++ ++ return add_mtd_device(&sf_mtd_info); ++} |