1*cab87e9cSJagpal Singh Gill#!/bin/sh 2*cab87e9cSJagpal Singh Gill 3*cab87e9cSJagpal Singh Gill# Write 1 to /sys/class/watchdog/watchdog1/access_cs0 to reset the boot code 4*cab87e9cSJagpal Singh Gill# selection and reset the chip select, so that the next boot is from the 5*cab87e9cSJagpal Singh Gill# primary chip. 6*cab87e9cSJagpal Singh Gill# This needs to be done in the shutdown script after umount the rootfs, 7*cab87e9cSJagpal Singh Gill# otherwise the filesystem will get error because the content is switched 8*cab87e9cSJagpal Singh Gill# back to CS0 chip. 9*cab87e9cSJagpal Singh Gill 10*cab87e9cSJagpal Singh GillSHUTDOWN_EXTRA_SCRIPT="/run/initramfs/shutdown_task_after_umount" 11*cab87e9cSJagpal Singh Gill 12*cab87e9cSJagpal Singh Gillcat <<'EOF' >"${SHUTDOWN_EXTRA_SCRIPT}" 13*cab87e9cSJagpal Singh Gill#!/bin/sh 14*cab87e9cSJagpal Singh GillACCESS_CS0="/sys/class/watchdog/watchdog1/access_cs0" 15*cab87e9cSJagpal Singh Gillif [ -f "${ACCESS_CS0}" ]; then 16*cab87e9cSJagpal Singh Gill echo "Reset aspeed chip select" 17*cab87e9cSJagpal Singh Gill echo 1 > "${ACCESS_CS0}" 18*cab87e9cSJagpal Singh Gillfi 19*cab87e9cSJagpal Singh GillEOF 20*cab87e9cSJagpal Singh Gillchmod +x "${SHUTDOWN_EXTRA_SCRIPT}" 21*cab87e9cSJagpal Singh Gill 22*cab87e9cSJagpal Singh Gill 23*cab87e9cSJagpal Singh Gill# Insert the shutdown_task_after_umount into the shutdown script 24*cab87e9cSJagpal Singh Gill# This change could be apply to obmc-shutdown.sh in obmc-phosphor-initfs.bb 25*cab87e9cSJagpal Singh Gill# if this is accepted. 26*cab87e9cSJagpal Singh Gillsed -i "s/echo Remaining mounts/\/run\/initramfs\/shutdown_task_after_umount\\necho Remaining mounts/" /run/initramfs/shutdown 27