berlin_tools/bootloader/common/drivers/flash_ts/nflash_drv.c

/*
 * Copyright (C) 2018 Synaptics Incorporated. All rights reserved.
 *
 * 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.
 *
 * INFORMATION CONTAINED IN THIS DOCUMENT IS PROVIDED "AS-IS," AND
 * SYNAPTICS EXPRESSLY DISCLAIMS ALL EXPRESS AND IMPLIED WARRANTIES,
 * INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE, AND ANY WARRANTIES OF NON-INFRINGEMENT OF ANY
 * INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT SHALL SYNAPTICS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, PUNITIVE, OR
 * CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE USE
 * OF THE INFORMATION CONTAINED IN THIS DOCUMENT, HOWEVER CAUSED AND
 * BASED ON ANY THEORY OF LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, AND EVEN IF SYNAPTICS WAS
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. IF A TRIBUNAL OF
 * COMPETENT JURISDICTION DOES NOT PERMIT THE DISCLAIMER OF DIRECT
 * DAMAGES OR ANY OTHER DAMAGES, SYNAPTICS' TOTAL CUMULATIVE LIABILITY
 * TO ANY PARTY SHALL NOT EXCEED ONE HUNDRED U.S. DOLLARS.
 */

#include "common.h"
#include "nand_drv.h"

int lgpl_printf(const char *format, ...);

#define DO_TRACE_LOG				(0)

#if DO_TRACE_LOG
#define TRACE_LOG				lgpl_printf
#else
#define TRACE_LOG(fmt...)
#endif


extern struct mv_nand_data nand_data ;
extern int init_nand_data(struct mv_nand_data * board);

int is_blank(const void *buf, size_t size)
{
	size_t i;
	const unsigned int *data = (const unsigned int *)buf;
	size /= sizeof(data[0]);

	for (i = 0; i < size; i++)
		if (data[i] != 0xffffffff)
			return 0;
	return 1;
}

/********************************************************
 * FUNCTION: return the block status, good or bad
 * PARAM: addr - flash page memory address
 * RETURN: 0 - good block
 *        1 - bad block
 *******************************************************/
int is_block_bad(loff_t addr)
{
	TRACE_LOG("is_block_bad(addr=0x%08X)\n", (int)addr);
	return mv_nand_block_bad(addr, 0);
}

/********************************************************
 * FUNCTION: read a page
 * PARAM: addr - flash page memory address
 *        pbuf - buffer to hold data
 * RETURN: 0 - succeed
 *         -1 - fail
 *******************************************************/
int NFlash_PageRead(loff_t ofs, int *buf)
{
	int ret = 0;
	TRACE_LOG("NFlash_PageRead(addr=0x%08X, pbuf=0x%08X)\n", (int)ofs, (intptr_t)buf);
	ret = mv_nand_read_block(ofs, (char*)buf, nand_page_size());
	if(ret != nand_page_size())
		return -1;
	return 0;
}

/********************************************************
 * FUNCTION: write a page
 * PARAM: off - flash page memory address
 *        buf - buffer to hold data
 * RETURN: 0 - succeed
 *         -1 - fail
 *******************************************************/
inline int NFlash_PageWrite(loff_t ofs, int *buf)
{
	int ret = 0;
	TRACE_LOG("NFlash_PageWrite(addr=0x%08X, pbuf=0x%08X)\n", (int)ofs, (int)buf);
	ret = mv_nand_write_block(ofs, (char *)buf, nand_page_size());
	if(ret != nand_page_size())
		return -1;
	return 0;
}

/********************************************************
 * FUNCTION: erase a block
 * PARAM: ofs - flash page memory address
 * RETURN: 0 - succeed
 *         -1 - fail
 *******************************************************/
inline int NFlash_Erase(loff_t ofs)
{
	return mv_nand_erase(ofs);
}

/********************************************************
 * FUNCTION: mark one block as bad
 * PARAM: ofs - flash page memory address
 * RETURN: 0 - succeed
 *         -1 - fail
 *******************************************************/
inline int NFlash_Markbad(loff_t ofs)
{
	int ret = mv_nand_mark_badblock(ofs, 0);
	return ret * (-1);
}