watchdog: bcm2835: Support setting reboot partition
authorNoralf Trønnes <noralf@tronnes.org>
Fri, 7 Oct 2016 14:50:59 +0000 (16:50 +0200)
committerRaspbian kernel package updater <root@raspbian.org>
Sun, 8 Oct 2017 00:59:42 +0000 (00:59 +0000)
commitb0257d34a563d6bc85bacc9d6304d69693613c03
tree1be084374bbe5dda39ecadd311f6ad83ddf0169a
parent1d89e693fd25752f7862e0fdfbc2cb07699a017c
watchdog: bcm2835: Support setting reboot partition

The Raspberry Pi firmware looks at the RSTS register to know which
partition to boot from. The reboot syscall command
LINUX_REBOOT_CMD_RESTART2 supports passing in a string argument.

Add support for passing in a partition number 0..63 to boot from.
Partition 63 is a special partiton indicating halt.
If the partition doesn't exist, the firmware falls back to partition 0.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
drivers/watchdog/bcm2835_wdt.c