mirror/buildroot
1
0
Fork 0
mirror of https://gitlab.com/buildroot.org/buildroot.git synced 2026-08-01 21:23:51 -09:00
Code Issues Packages Projects Releases Wiki Activity

board/beagleboard/beaglev_fire: fix update gateware feature

Browse Source 
Following the addition of the firmware upload API in linux v6.6, using
debugfs for firmware updating has been removed. Update the
update-gateware script to use the firmware upload API with sysfs and
enable applying the overlays during boot.
The fw_upload interface can detect when there is an overlay file and
will write it correctly. Use this functionality to write the overlay
file and remove dd command related code.

Fixes: 8ce97fd550 ("configs/beaglev_fire: bump Linux and U-Boot")

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
This commit is contained in:
Jamie Gibbons
2025-02-12 09:21:20 +00:00
committed by Romain Naour
parent 452cb98323
commit 3fb075afad
2 changed files with 39 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
board/beagleboard/beaglev_fire/boot.cmd
View File

@@ -12,4 +12,5 @@ bootm loados ${scriptaddr};
bootm ramdisk;
bootm prep;
fdt set /soc/ethernet@20110000 mac-address ${beaglevfire_mac_addr0};
run design_overlays;
bootm go;

49
board/beagleboard/beaglev_fire/rootfs-overlay/usr/share/microchip/update-gateware.sh Normal file → Executable file
View File

@@ -13,20 +13,47 @@ fi
cp "$1"/mpfs_dtbo.spi /lib/firmware/mpfs_dtbo.spi
cp "$1"/mpfs_bitstream.spi /lib/firmware/mpfs_bitstream.spi
mount -t debugfs none /sys/kernel/debug
# Trash existing device tree overlay in case the rest of the process fails:
flash_erase /dev/mtd0 0 1024
flash_erase /dev/mtd0 0 16
# # Write device tree overlay
dd if=/lib/firmware/mpfs_dtbo.spi of=/dev/mtd0 seek=1024
# Initiate FPGA update for dtbo
echo 1 > /sys/class/firmware/mpfs-auto-update/loading
# Write device tree overlay
cat /lib/firmware/mpfs_dtbo.spi > /sys/class/firmware/mpfs-auto-update/data
# Signal completion for dtbo load
echo 0 > /sys/class/firmware/mpfs-auto-update/loading
while [ "$(cat /sys/class/firmware/mpfs-auto-update/status)" != "idle" ]; do
# Do nothing, just keep checking
sleep 1
done
# Fake the presence of a golden image for now.
dd if=/dev/zero of=/dev/mtd0 count=4 bs=1
dd if=/dev/zero of=/dev/mtd0 count=1 bs=4
# Initiate FPGA update.
echo 1 > /sys/kernel/debug/fpga/microchip_exec_update
# Initiate FPGA update for bitstream
echo 1 > /sys/class/firmware/mpfs-auto-update/loading
# Reboot Linux for the gateware update to take effect.
# FPGA reprogramming takes places between Linux shut-down and HSS restarting the board.
reboot
# Write the firmware image to the data sysfs file
cat /lib/firmware/mpfs_bitstream.spi > /sys/class/firmware/mpfs-auto-update/data
# Signal completion for bitstream load
echo 0 > /sys/class/firmware/mpfs-auto-update/loading
while [ "$(cat /sys/class/firmware/mpfs-auto-update/status)" != "idle" ]; do
# Do nothing, just keep checking
sleep 1
done
# When the status is 'idle' and no error has occured, reboot the system for
# the gateware update to take effect. FPGA reprogramming takes places between
# Linux shut-down and HSS restarting the board.
if [ "$(cat /sys/class/firmware/mpfs-auto-update/error)" = "" ]; then
echo "FPGA update ready. Rebooting."
reboot
else
echo "FPGA update failed with status: $(cat /sys/class/firmware/mpfs-auto-update/error)"
exit 1
fi