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rockchip: add rkimgtest cmd to get boot dev 

We need to check if the storage(sdmmc) have IDB data so that
we can use it as boot device.

Change-Id: I7373b8f1a6c4c41c1d2cb1c94cd5d20c0780b5db
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Kever Yang 2018-04-28 16:54:21 +08:00
parent 3bea61eda0
commit 6caa033365
1 changed files with 37 additions and 0 deletions
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37
cmd/bootrkp.c
View File

@ -5,6 +5,7 @@
*/
#include <common.h>
#include <malloc.h>
#include <android_bootloader.h>
#include <attestation_key.h>
#include <boot_rkimg.h>
@ -79,3 +80,39 @@ U_BOOT_CMD(
"boot.img: ramdisk\n"
"resource.img: dtb, u-boot logo, kernel logo"
);
static int do_rkimg_test(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
struct blk_desc *dev_desc;
u32* buffer;
int ret = 0;
dev_desc = blk_get_dev(argv[1], simple_strtoul(argv[2], NULL, 16));
buffer = memalign(ARCH_DMA_MINALIGN, 1024);
/* Read one block from begining of IDB data */
ret = blk_dread(dev_desc, 64, 2, buffer);
if (ret != 1) {
printf("%s fail to read data from IDB\n", __func__);
free(buffer);
return CMD_RET_FAILURE;
}
if (buffer[0] == 0xFCDC8C3B){
printf("%s found IDB in SDcard\n", __func__);
ret = CMD_RET_SUCCESS;
if (0 == buffer[128 + 104 / 4]) /* TAG in IDB */
env_update("bootargs", "sdfwupdate");
}
free(buffer);
return ret;
}
U_BOOT_CMD(
rkimgtest, 3, 0, do_rkimg_test,
"Test if storage media have rockchip image",
""
);