67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/*
|
|
* nand.h - NAND flash definitions
|
|
*
|
|
* Copyright (C) 2008 Hugo Villeneuve <hugo@hugovil.com>
|
|
*
|
|
* Based on TI DaVinci Flash and Boot Utilities, original copyright follows:
|
|
* Copyright 2008 Texas Instruments, Inc. <www.ti.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef _NAND_H_
|
|
#define _NAND_H_
|
|
|
|
#include "common.h"
|
|
#include "davinci.h"
|
|
|
|
/* Define which blocks are valid for writing UBL and APP data */
|
|
#define START_UBL_BLOCK_NUM 1
|
|
#define END_UBL_BLOCK_NUM (START_APP_BLOCK_NUM - 1)
|
|
#define START_APP_BLOCK_NUM ((nand_get_bytes_per_block() == 16384) ? 32 : 4)
|
|
|
|
#define MAX_PAGE_SIZE (2048+64) /* Data bytes + spare area */
|
|
|
|
/* NAND descriptor expected by RBL when it loads UBL image. */
|
|
struct nand_image_descriptor_t {
|
|
uint32_t magic;
|
|
uint32_t entry_point;
|
|
uint32_t size_in_pages;
|
|
uint32_t block_num;
|
|
uint32_t page_num;
|
|
uint32_t load_address; /* Not used by RBL */
|
|
};
|
|
|
|
|
|
int nand_init(void);
|
|
|
|
int nand_erase_all(void);
|
|
|
|
int nand_read_page(uint32_t block, uint32_t page, uint8_t *dest);
|
|
|
|
int nand_write_prog(struct nand_image_descriptor_t *im_desc,
|
|
const uint8_t *src, size_t size);
|
|
|
|
/* Copy Application from NAND to RAM */
|
|
int nand_copy(uint32_t *jump_entry_point);
|
|
|
|
int nand_get_pages_per_block(void);
|
|
|
|
int nand_get_bytes_per_page(void);
|
|
|
|
int nand_get_bytes_per_block(void);
|
|
|
|
#endif /* _NAND_H_ */
|