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

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>

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 585c2b2..9cc47bf 100644 (file)
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -2655,7 +2655,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
        md->disk->private_data = md;
        md->parent = parent;
        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;
 
        /*