mtk-lk/platform/common/plinfo/plinfo_nand.c

/* Copyright Statement:
 *
 * This software/firmware and related documentation ("MediaTek Software") are
 * protected under relevant copyright laws. The information contained herein
 * is confidential and proprietary to MediaTek Inc. and/or its licensors.
 * Without the prior written permission of MediaTek inc. and/or its licensors,
 * any reproduction, modification, use or disclosure of MediaTek Software,
 * and information contained herein, in whole or in part, shall be strictly prohibited.
 */
/* MediaTek Inc. (C) 2015. All rights reserved.
 *
 * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
 * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
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 */
#include <platform/mt_typedefs.h>
#include <platform/sec_status.h>

extern u32 mtk_nand_erasesize(void);

static u64 nand_addr_translate(u64 offset)
{
#ifdef MTK_MLC_NAND_SUPPORT
	int idx, part_addr;
	part_addr = part_get_startaddress(offset, &idx);
	if (raw_partition(idx)) {
		return part_addr + (offset-part_addr)/2;
	}
	return offset;
#else
	return offset;
#endif
}

static unsigned int nand_get_block_size(void)
{
#ifdef MTK_MLC_NAND_SUPPORT
	extern unsigned int BLOCK_SIZE;
	return BLOCK_SIZE;
#else
	return mtk_nand_erasesize();
#endif
}

/* header block is a region before preloader, which is used by bootrom to store
location of preloader and other informations. In current implementation, preloader
partition starts with header block, then followed by preloader image itself.
User may use this API to get offset of preloader image in preloader partition. */
unsigned int plinfo_get_brom_header_block_size(u64 *size)
{
	if (NULL == size)
		return INVALID_PARAMETER;

	/* *size = (u64)nand_address_translate(nand_get_block_size()); */
	*size = mtk_nand_erasesize();

	return 0;
}