/******************************************************************************
* 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;
}
/**
* 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;
}
/**
* 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"));
}