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mtd: mtd_blk: parse the block part info to mtd part info 

Change-Id: Ib4117bf22d1c91a5b2d69a45b6584e8d0cb47021
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>
This commit is contained in:
Jason Zhu 2019-06-24 14:35:39 +08:00 committed by Joseph Chen
parent 73251fc230
commit 22dccd1122
2 changed files with 85 additions and 0 deletions
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69
drivers/mtd/mtd_blk.c
View File

@ -5,11 +5,80 @@
*/
#include <common.h>
#include <blk.h>
#include <boot_rkimg.h>
#include <dm.h>
#include <errno.h>
#include <malloc.h>
#include <nand.h>
#include <part.h>
#include <dm/device-internal.h>
#define MTD_PART_NAND_HEAD "mtdparts="
#define MTD_PART_INFO_MAX_SIZE 512
#define MTD_SINGLE_PART_INFO_MAX_SIZE 40
char *mtd_part_parse(void)
{
char mtd_part_info_temp[MTD_SINGLE_PART_INFO_MAX_SIZE] = {0};
u32 length, data_len = MTD_PART_INFO_MAX_SIZE;
struct blk_desc *dev_desc;
disk_partition_t info;
char *mtd_part_info_p;
char *mtd_part_info;
int ret;
int p;
dev_desc = rockchip_get_bootdev();
if (!dev_desc)
return NULL;
mtd_part_info = (char *)calloc(MTD_PART_INFO_MAX_SIZE, sizeof(char));
if (!mtd_part_info) {
printf("%s: Fail to malloc!", __func__);
return NULL;
}
mtd_part_info_p = mtd_part_info;
snprintf(mtd_part_info_p, data_len - 1, "%s%s:",
MTD_PART_NAND_HEAD,
dev_desc->product);
data_len -= strlen(mtd_part_info_p);
mtd_part_info_p = mtd_part_info_p + strlen(mtd_part_info_p);
for (p = 1; p < MAX_SEARCH_PARTITIONS; p++) {
ret = part_get_info(dev_desc, p, &info);
if (ret)
break;
debug("name is %s, start addr is %x\n", info.name,
(int)(size_t)info.start);
snprintf(mtd_part_info_p, data_len - 1, "0x%x@0x%x(%s)",
(int)(size_t)info.size << 9,
(int)(size_t)info.start << 9,
info.name);
snprintf(mtd_part_info_temp, MTD_SINGLE_PART_INFO_MAX_SIZE - 1,
"0x%x@0x%x(%s)",
(int)(size_t)info.size << 9,
(int)(size_t)info.start << 9,
info.name);
strcat(mtd_part_info, ",");
if (part_get_info(dev_desc, p + 1, &info)) {
snprintf(mtd_part_info_p, data_len - 1, "-@0x%x(%s)",
(int)(size_t)info.start << 9,
info.name);
break;
}
length = strlen(mtd_part_info_temp);
data_len -= length;
mtd_part_info_p = mtd_part_info_p + length + 1;
memset(mtd_part_info_temp, 0, MTD_SINGLE_PART_INFO_MAX_SIZE);
}
return mtd_part_info;
}
ulong mtd_dread(struct udevice *udev, lbaint_t start,
lbaint_t blkcnt, void *dst)
{

16
include/mtd_blk.h Normal file
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@ -0,0 +1,16 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2019 Rockchip Electronics Co., Ltd
*/
#ifndef _MTD_BLK_H_
#define _MTD_BLK_H_
/**
* mtd_part_parse() - Parse the block part info to mtd part info
*
* @return mtd part info. If fail, return NULL
*/
char *mtd_part_parse(void);
#endif