* 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>
+#include <mmc.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)
static char *response_str;
-static void fastboot_resp(const char *s)
+void fastboot_fail(const char *s)
+{
+ strncpy(response_str, "FAIL\0", 5);
+ strncat(response_str, s, RESPONSE_LEN - 4 - 1);
+}
+
+void fastboot_okay(const char *s)
{
- strncpy(response_str, s, RESPONSE_LEN);
- response_str[RESPONSE_LEN - 1] = '\0';
+ strncpy(response_str, "OKAY\0", 5);
+ strncat(response_str, s, RESPONSE_LEN - 4 - 1);
+}
+
+static int get_partition_info_efi_by_name_or_alias(block_dev_desc_t *dev_desc,
+ const char *name, disk_partition_t *info)
+{
+ int ret;
+
+ ret = get_partition_info_efi_by_name(dev_desc, name, info);
+ if (ret) {
+ /* strlen("fastboot_partition_alias_") + 32(part_name) + 1 */
+ char env_alias_name[25 + 32 + 1];
+ char *aliased_part_name;
+
+ /* check for alias */
+ strcpy(env_alias_name, "fastboot_partition_alias_");
+ strncat(env_alias_name, name, 32);
+ aliased_part_name = getenv(env_alias_name);
+ if (aliased_part_name != NULL)
+ ret = get_partition_info_efi_by_name(dev_desc,
+ aliased_part_name, info);
+ }
+ return ret;
}
static void write_raw_image(block_dev_desc_t *dev_desc, disk_partition_t *info,
if (blkcnt > info->size) {
error("too large for partition: '%s'\n", part_name);
- fastboot_resp("FAILtoo large for partition");
+ fastboot_fail("too large for partition");
return;
}
buffer);
if (blks != blkcnt) {
error("failed writing to device %d\n", dev_desc->dev);
- fastboot_resp("FAILfailed writing to device");
+ fastboot_fail("failed writing to device");
return;
}
printf("........ wrote " LBAFU " bytes to '%s'\n", blkcnt * info->blksz,
part_name);
- fastboot_resp("OKAY");
+ fastboot_okay("");
}
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;
dev_desc = get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
error("invalid mmc device\n");
- fastboot_resp("FAILinvalid mmc device");
+ fastboot_fail("invalid mmc device");
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_or_alias(dev_desc, cmd, &info)) {
error("cannot find partition: '%s'\n", cmd);
- fastboot_resp("FAILcannot find partition");
+ fastboot_fail("cannot find partition");
+ return;
+ }
+
+ if (is_sparse_image(download_buffer))
+ write_sparse_image(dev_desc, &info, cmd, download_buffer,
+ download_bytes);
+ else
+ write_raw_image(dev_desc, &info, cmd, download_buffer,
+ download_bytes);
+}
+
+void fb_mmc_erase(const char *cmd, char *response)
+{
+ int ret;
+ block_dev_desc_t *dev_desc;
+ disk_partition_t info;
+ lbaint_t blks, blks_start, blks_size, grp_size;
+ struct mmc *mmc = find_mmc_device(CONFIG_FASTBOOT_FLASH_MMC_DEV);
+
+ if (mmc == NULL) {
+ error("invalid mmc device");
+ fastboot_fail("invalid mmc device");
+ return;
+ }
+
+ /* initialize the response buffer */
+ response_str = response;
+
+ dev_desc = get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
+ if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
+ error("invalid mmc device");
+ fastboot_fail("invalid mmc device");
+ return;
+ }
+
+ ret = get_partition_info_efi_by_name_or_alias(dev_desc, cmd, &info);
+ if (ret) {
+ error("cannot find partition: '%s'", cmd);
+ fastboot_fail("cannot find partition");
+ return;
+ }
+
+ /* Align blocks to erase group size to avoid erasing other partitions */
+ grp_size = mmc->erase_grp_size;
+ blks_start = (info.start + grp_size - 1) & ~(grp_size - 1);
+ if (info.size >= grp_size)
+ blks_size = (info.size - (blks_start - info.start)) &
+ (~(grp_size - 1));
+ else
+ blks_size = 0;
+
+ printf("Erasing blocks " LBAFU " to " LBAFU " due to alignment\n",
+ blks_start, blks_start + blks_size);
+
+ blks = dev_desc->block_erase(dev_desc->dev, blks_start, blks_size);
+ if (blks != blks_size) {
+ error("failed erasing from device %d", dev_desc->dev);
+ fastboot_fail("failed erasing from device");
return;
}
- write_raw_image(dev_desc, &info, cmd, download_buffer,
- download_bytes);
+ printf("........ erased " LBAFU " bytes from '%s'\n",
+ blks_size * info.blksz, cmd);
+ fastboot_okay("");
}
projects / karo-tx-uboot.git / blobdiff