예제 #1
0
/******************************************************************************
* 函 数 名: burn_efuse_nandc
* 功能描述: 将flash spec info烧写进efuse
* 输入参数: 无
* 输出参数: 无
* 返 回 值: 0 - 成功; 非0 - 失败
* 函数说明:
*******************************************************************************/
s32 burn_efuse_nandc(void)
{
	s32 ret = ERROR;
	u32 burn_flag = 0;  /* 1 - already burn; 0 - not burn */
	struct nand_spec *spec;

	/* check whether nand info already burn */
    /* coverity[no_effect_test] */
	ret = is_burn(&burn_flag);
	if(ret)
	{
		PRINT_MSG("Check efuse info error\n");
		goto erro;
	}
	if(burn_flag)
	{
		PRINT_MSG("Efuse nandc info already burn\n");
		return OK;
	}

	/* get flash info  */
	spec = (struct nand_spec *)alloc(sizeof(struct nand_spec));
	if(!spec)
	{
		PRINT_MSG("Malloc memory failed\n");
		goto erro;
	}

	ret = bsp_get_nand_info(spec);
	if(OK != ret)
	{
		PRINT_MSG("Get flash info failed\n");
		goto erro;
	}

	PRINT_MSG("After get spec\n");
	PRINT_MSG("spec->pagesize			: 0x%x\n", spec->pagesize);
	PRINT_MSG("spec->pagenumperblock	: 0x%x\n", spec->pagenumperblock);
	PRINT_MSG("spec->addrnum			: 0x%x\n", spec->addrnum);
	PRINT_MSG("spec->ecctype			: 0x%x\n", spec->ecctype);


	/* burn flash info into efuse */
	ret = do_burn(spec);
	if(OK != ret)
	{
		PRINT_MSG("Burn flash info failed\n");
		goto erro;
	}

	return OK;

erro:
	return ret;
}
예제 #2
0
/**
* 作用:读取分区相对偏移地址的标志值,主要是为NV模块用,查询此分区的偏移地址的标志位的值
*
* 参数:
* @partition_name         	---分区名
* @partition_offset         ---分区的相对偏移
* @flag                     ---把检测的分区的标志值存放在此flag中
* 描述:NV模块把一个分区的一个block的最后一页的OOB中存放特定标记值,读此标记值存放在flag中
*/
u32 bsp_nand_read_flag_nv(const char *partition_name, u32 partition_offset, unsigned char *flag)
{
    u32 flash_addr;
    u32 ret = NANDC_ERROR;
    static unsigned char *buffer = NULL;
    struct nand_spec spec;
    struct ST_PART_TBL * ptable = find_partition_by_name((char *)partition_name);
	/*参数不对*/
    if(!ptable)
    {
        goto ERRO;
    }
    if(!flag)
    {
        NAND_TRACE(("argu error.\n"));
        goto ERRO;
    }
	/*得到此分区的nandflash的规格参数*/
    ret = bsp_get_nand_info(&spec);
    if(ret)
    {
        goto ERRO;
    }
	/*没有内存时分配内存*/
    if(!buffer)
    {
        buffer = (unsigned char *)himalloc(spec.pagesize + YAFFS_BYTES_PER_SPARE);
        if(!buffer)
        {
    		NAND_TRACE(("get ram buffer failed!\n"));
    		goto ERRO;
        }
    }

    memset(buffer, 0xFF, spec.pagesize + YAFFS_BYTES_PER_SPARE);

    flash_addr = ptable->offset + partition_offset;
	/*使能ECC功能的带OOB读数据功能*/
    ret = nand_read_oob((flash_addr + spec.blocksize - spec.pagesize),
          (unsigned int)buffer, (spec.pagesize + YAFFS_BYTES_PER_SPARE),YAFFS_BYTES_PER_SPARE ,NULL);
    if(ret)
    {
		NAND_TRACE(("nand read oob failed!\n"));
		goto ERRO;
    }
    *flag = (*(buffer + spec.pagesize) == NV_WRITE_SUCCESS) ? NV_WRITE_SUCCESS : (~NV_WRITE_SUCCESS);

    return NANDC_OK;
ERRO:
    return ret;
}
예제 #3
0
/**
 * 作用:打印nandflash相关规格参数的函数接口
 *
 * 输入参数:无
 *
 *
 * 描述:打印nand->spec 参数值
 */
void bsp_show_nand_info(void)
{
    struct nand_spec spec;
    if(NAND_ERROR == bsp_get_nand_info(&spec))
    {
        NAND_TRACE(("ERROR: nand get spec error.\n"));
        return;
    }
    NAND_TRACE((" ------begin show nand info----------\n"));
    NAND_TRACE((" chipsize=%dMB,blocksize=%dKB,pagesize=%dKB,sparesize=%d\n",
    	                   (spec.chipsize/1024/1024),spec.blocksize/1024,spec.pagesize/1024,spec.sparesize));
    NAND_TRACE((" pagenumperblock=%d,ecctype=%d,buswidth=%d,addrnum=%d\n",
    	                   spec.pagenumperblock,spec.ecctype,(0==spec.buswidth?8:16),spec.addrnum));
    NAND_TRACE((" ------end  show nand info----------\n"));
}