| /* |
| * Interface to SPI flash |
| * |
| * Copyright (C) 2008 Atmel Corporation |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| #ifndef _SPI_FLASH_H_ |
| #define _SPI_FLASH_H_ |
| |
| #include <stdint.h> |
| #include <stddef.h> |
| #include <console/console.h> |
| #include <spi-generic.h> |
| |
| /** |
| * container_of - cast a member of a structure out to the containing structure |
| * @ptr: the pointer to the member. |
| * @type: the type of the container struct this is embedded in. |
| * @member: the name of the member within the struct. |
| * |
| */ |
| #define container_of(ptr, type, member) ({ \ |
| const typeof( ((type *)0)->member ) *__mptr = (ptr); \ |
| (type *)( (char *)__mptr - offsetof(type,member) );}) |
| |
| struct spi_flash { |
| struct spi_slave *spi; |
| |
| const char *name; |
| |
| u32 size; |
| |
| u32 sector_size; |
| |
| int (*read)(struct spi_flash *flash, u32 offset, |
| size_t len, void *buf); |
| int (*write)(struct spi_flash *flash, u32 offset, |
| size_t len, const void *buf); |
| int (*erase)(struct spi_flash *flash, u32 offset, |
| size_t len); |
| }; |
| |
| struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs); |
| |
| static inline int spi_flash_read(struct spi_flash *flash, u32 offset, |
| size_t len, void *buf) |
| { |
| return flash->read(flash, offset, len, buf); |
| } |
| |
| static inline int spi_flash_write(struct spi_flash *flash, u32 offset, |
| size_t len, const void *buf) |
| { |
| return flash->write(flash, offset, len, buf); |
| } |
| |
| static inline int spi_flash_erase(struct spi_flash *flash, u32 offset, |
| size_t len) |
| { |
| return flash->erase(flash, offset, len); |
| } |
| |
| #endif /* _SPI_FLASH_H_ */ |