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swupdate: mmc uboot: enable write access to update U-Boot artifact 

While on it, remove the third argument to write_artifact_emmc function,
as write access is always needed to write in U-Boot partitions, otherwise
they would be 'ro' protected.

https://onedigi.atlassian.net/browse/DEL-9735

Signed-off-by: Isaac Hermida <isaac.hermida@digi.com>
This commit is contained in:
Isaac Hermida 2025-07-21 18:26:46 +02:00
parent 85c0607856
commit 5001419caf
1 changed files with 8 additions and 13 deletions
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21
meta-digi-dey/recipes-digi/swu-images/files/swupdate_uboot_mmc.sh
View File

@ -241,19 +241,14 @@ write_artifact_emmc ()
{
local BLOCK_TO_WRITE="$1"
local FILE_TO_WRITE="$2"
local ENABLE_WRITE_ACCESS="$3"
if [ "${ENABLE_WRITE_ACCESS}" -eq 1 ]; then
# Enable write access in the partition.
echo 0 > "/sys/block/${BLOCK_TO_WRITE}/force_ro"
fi
# Enable write access in the partition.
echo 0 > "/sys/block/${BLOCK_TO_WRITE}/force_ro"
# Write the file into the eMMC.
dd if="${FILE_TO_WRITE}" of="/dev/${BLOCK_TO_WRITE}" seek="${UBOOT_SEEK_KB}" bs=1K 2>/dev/null
local rc=$?
if [ "${ENABLE_WRITE_ACCESS}" -eq 1 ]; then
# Disable write access in partition.
echo 1 > "/sys/block/${BLOCK_TO_WRITE}/force_ro"
fi
# Disable write access in partition.
echo 1 > "/sys/block/${BLOCK_TO_WRITE}/force_ro"
# Check update operation result.
if [ "${rc}" -ne 0 ]; then
exit_error "## ERROR: failed to write file ${FILE_TO_WRITE} to /dev/${BLOCK_TO_WRITE}" "${rc}"
@ -269,19 +264,19 @@ fi
# Write TFA.
if expr "${PLATFORM}" : "ccmp2.*" >/dev/null; then
# Write TFA artifact into eMMC BOOT1 and BOOT2 partitions.
write_artifact_emmc ${UBOOT_BLOCK_MAIN} ${UBOOT_TFA_FILE} 1
write_artifact_emmc ${UBOOT_BLOCK_MAIN} ${UBOOT_TFA_FILE}
if [ "${UBOOT_REDUNDANT}" = "redundant" ]; then
write_artifact_emmc ${UBOOT_BLOCK_REDUNDANT} ${UBOOT_TFA_FILE} 1
write_artifact_emmc ${UBOOT_BLOCK_REDUNDANT} ${UBOOT_TFA_FILE}
fi
# Redefine block devices to write FIP artifact into 'fip-a' and 'fip-b' partitions.
UBOOT_BLOCK_MAIN="mmcblk0p3"
UBOOT_BLOCK_REDUNDANT="mmcblk0p4"
fi
# Write U-Boot
write_artifact_emmc ${UBOOT_BLOCK_MAIN} ${UBOOT_FILE} 0
write_artifact_emmc ${UBOOT_BLOCK_MAIN} ${UBOOT_FILE}
# Check if redundant U-Boot update is requested.
if [ "${UBOOT_REDUNDANT}" = "redundant" ]; then
write_artifact_emmc ${UBOOT_BLOCK_REDUNDANT} ${UBOOT_FILE} 0
write_artifact_emmc ${UBOOT_BLOCK_REDUNDANT} ${UBOOT_FILE}
fi
# Clean intermediate artifacts.
clean_artifacts