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74 lines
2.2 KiB
74 lines
2.2 KiB
/*
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* nand.h - NAND flash definitions
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*
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* Copyright (C) 2008 Hugo Villeneuve <hugo@hugovil.com>
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*
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* Based on TI DaVinci Flash and Boot Utilities, original copyright follows:
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* Copyright 2008 Texas Instruments, Inc. <www.ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _NAND_H_
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#define _NAND_H_
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#include "common.h"
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#include "davinci.h"
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/* Define which blocks are valid for writing UBL data */
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#define START_UBL_BLOCK_NUM 1
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#define END_UBL_BLOCK_NUM ((nand_get_bytes_per_block() == 16384) ? 32 : 5)
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/* Define which blocks are valid for writing U-BOOT data */
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/* NUTAQ: Adjust it according to your requirements */
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#define START_UBOOT_BLOCK_NUM (END_UBL_BLOCK_NUM + 1)
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#define MAX_BLOCK_PER_UBOOT 6
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#define END_UBOOT_BLOCK_NUM 31
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#define MAX_PAGE_SIZE (2048+64) /* Data bytes + spare area */
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/* NAND descriptor expected by RBL when it loads UBL image. */
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struct nand_image_descriptor_t {
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uint32_t magic;
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uint32_t entry_point;
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uint32_t size_in_pages;
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uint32_t block_num;
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uint32_t page_num;
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uint32_t load_address; /* Not used by RBL */
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};
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int nand_init(void);
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int nand_erase_all(void);
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int nand_read_page(uint32_t block, uint32_t page, uint8_t *dest);
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int nand_write_prog(struct nand_image_descriptor_t *im_desc,
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const uint8_t *src, size_t size);
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/* Copy Application from NAND to RAM */
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int nand_copy(uint32_t *jump_entry_point);
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int nand_get_pages_per_block(void);
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int nand_get_bytes_per_page(void);
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int nand_get_bytes_per_block(void);
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int nand_remove_nwp(int need_nwp_nand);
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#endif /* _NAND_H_ */
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