yair/u-boot-tk1-som
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fastboot: handle flash write to GPT partitions

Browse Source 
Implement a feature to allow fastboot to write the downloaded image
to the space reserved for the Protective MBR and the Primary GUID
Partition Table.
Additionally, prepare and write the Backup GUID Partition Table.

Signed-off-by: Steve Rae <srae@broadcom.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[Test HW: Exynos4412 - Trats2]
This commit is contained in:
Steve Rae
2014-12-12 15:51:54 -08:00
committed by Lukasz Majewski
parent e1f6b0a02d
commit 0ff7e585df
4 changed files with 145 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
common/fb_mmc.c
View File

@@ -4,12 +4,17 @@
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <common.h>
#include <fb_mmc.h>
#include <part.h>
#include <aboot.h>
#include <sparse_format.h>
#ifndef CONFIG_FASTBOOT_GPT_NAME
#define CONFIG_FASTBOOT_GPT_NAME GPT_ENTRY_NAME
#endif
/* The 64 defined bytes plus the '\0' */
#define RESPONSE_LEN (64 + 1)
@@ -62,7 +67,6 @@ static void write_raw_image(block_dev_desc_t *dev_desc, disk_partition_t *info,
void fb_mmc_flash_write(const char *cmd, void *download_buffer,
unsigned int download_bytes, char *response)
{
int ret;
block_dev_desc_t *dev_desc;
disk_partition_t info;
@@ -76,8 +80,24 @@ void fb_mmc_flash_write(const char *cmd, void *download_buffer,
return;
}
ret = get_partition_info_efi_by_name(dev_desc, cmd, &info);
if (ret) {
if (strcmp(cmd, CONFIG_FASTBOOT_GPT_NAME) == 0) {
printf("%s: updating MBR, Primary and Backup GPT(s)\n",
__func__);
if (is_valid_gpt_buf(dev_desc, download_buffer)) {
printf("%s: invalid GPT - refusing to write to flash\n",
__func__);
fastboot_fail("invalid GPT partition");
return;
}
if (write_mbr_and_gpt_partitions(dev_desc, download_buffer)) {
printf("%s: writing GPT partitions failed\n", __func__);
fastboot_fail("writing GPT partitions failed");
return;
}
printf("........ success\n");
fastboot_okay("");
return;
} else if (get_partition_info_efi_by_name(dev_desc, cmd, &info)) {
error("cannot find partition: '%s'\n", cmd);
fastboot_fail("cannot find partition");
return;