Enable PMIC WDT on Xavier NX SD #254
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Cboot 32.6.1 may exhibit a sporadic hang during boot, and the only to get out of this state is to eiter power cycle the device manually or have the PMIC WDT enabled instead of Tegra WDT. The sporadic hang is caused by cboot not finding any partitions on the sd-card, and this seems to happen right after a reboot, but very infrequently, and only on the sd-card version of the device. We enable the PMIC watchdog via ODMDATA on this particular device. Signed-off-by: Alexandru Costache <[email protected]>
Signed-off-by: Alexandru Costache <[email protected]>
Changelog-entry: tegra-boot-tools: Fix typo in comment Signed-off-by: Alexandru Costache <[email protected]>
The NX SD may present a sporadic hang in cboot during reboot. To avoid this hang, upstream recommends enabling the PMIC WDT (trough ODMDATA). We also need to disable the Tegra WDT module, otherwise the device will reboot once systemd opens the watchdog device. Signed-off-by: Alexandru Costache <[email protected]>
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@resin-jenkins test this please |
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@balena-ci I self-certify! |
ghost
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Feb 3, 2022
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We do so to overcome a very sporadic hang in cboot 32.6.1 which appears
to happen sometimes when cboot cannot detect partition on the SD-CARD.
This appears to happen very seldom, right after a reboot, thus we enable
PMIC WDT to reboot the device in this case.
Connects-to: OE4T/meta-tegra#891 (comment)