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mmc: core: Scan the eMMC boot areas for partition table

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It appears that some vendors provision the boot areas with valid part
tables (GPT) in order to have identifiable partitions for device and
firmware specific data, such has the qualcomm CDT (Qualcomm Config
Data Table). Additionally, these boot areas can be utilized to host
device-specific IDs, calibration data, and other critical information.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250507134538.575912-1-loic.poulain@oss.qualcomm.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Loic Poulain 2025-05-07 15:45:38 +02:00 committed by Ulf Hansson
parent e760eab406
commit f0534aace3
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/core/block.c
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@ -2655,7 +2655,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
md->disk->private_data = md; md->disk->private_data = md;
md->parent = parent; md->parent = parent;
set_disk_ro(md->disk, md->read_only || default_ro); set_disk_ro(md->disk, md->read_only || default_ro);
if (area_type & (MMC_BLK_DATA_AREA_RPMB | MMC_BLK_DATA_AREA_BOOT)) if (area_type & MMC_BLK_DATA_AREA_RPMB)
md->disk->flags |= GENHD_FL_NO_PART; md->disk->flags |= GENHD_FL_NO_PART;
/* /*