u-boot/include/onenand_uboot.h
Marek Vasut 54cd51bf79 OneNAND: Add simple OneNAND SPL
This introduces small OneNAND loader, fitting into 1kB of space (smallest
possible OneNAND RAM size). Some devices equipped with such crappy chips will
use this.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Scott Wood <scottwood@freescale.com>

V2: Introduce spl_onenand_load_image() to load data from OneNAND in SPL
V3: Cleanup, align with nand_spl. Skip whole blocks.
2011-11-15 22:24:50 +01:00

58 lines
1.7 KiB
C

/*
* Header file for OneNAND support for U-Boot
*
* Adaptation from kernel to U-Boot
*
* Copyright (C) 2005-2007 Samsung Electronics
* Kyungmin Park <kyungmin.park@samsung.com>
*
* 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.
*/
#ifndef __UBOOT_ONENAND_H
#define __UBOOT_ONENAND_H
#include <linux/types.h>
/* Forward declarations */
struct mtd_info;
struct mtd_oob_ops;
struct erase_info;
struct onenand_chip;
extern struct mtd_info onenand_mtd;
extern struct onenand_chip onenand_chip;
/* board */
extern void onenand_board_init(struct mtd_info *);
/* Functions */
extern void onenand_init(void);
extern int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t * retlen, u_char * buf);
extern int onenand_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops);
extern int onenand_write(struct mtd_info *mtd, loff_t from, size_t len,
size_t * retlen, const u_char * buf);
extern int onenand_erase(struct mtd_info *mtd, struct erase_info *instr);
extern char *onenand_print_device_info(int device, int version);
extern unsigned onenand_block(struct onenand_chip *this, loff_t addr);
extern loff_t onenand_addr(struct onenand_chip *this, int block);
extern int flexonenand_region(struct mtd_info *mtd, loff_t addr);
extern int flexonenand_set_boundary(struct mtd_info *mtd, int die,
int boundary, int lock);
/* S3C64xx */
extern void s3c64xx_onenand_init(struct mtd_info *);
extern void s3c64xx_set_width_regs(struct onenand_chip *);
/* SPL */
void onenand_spl_load_image(uint32_t offs, uint32_t size, void *dst);
#endif /* __UBOOT_ONENAND_H */