Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 25b286c0 authored by Sylvain Lemieux's avatar Sylvain Lemieux Committed by Wim Van Sebroeck
Browse files

watchdog: pnx4008: add support for soft reset 



Add support for explicit soft reset using the reboot mode.

The default reboot mode behavior is unchanged;
you can overwrite the default reboot type in the board specific file
"DT_MACHINE_START" definition using the "reboot_mode" parameter.

Signed-off-by: default avatarSylvain Lemieux <slemieux@tycoint.com>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 4ed5443d

drivers/watchdog/pnx4008_wdt.c

+10 −3
Original line number Diff line number Diff line
@@ -129,9 +129,16 @@ static int pnx4008_wdt_set_timeout(struct watchdog_device *wdd, 
static int pnx4008_restart_handler(struct watchdog_device *wdd,

				   unsigned long mode, void *cmd)

{

	if (mode == REBOOT_SOFT) {

		/* Force match output active */

		writel(EXT_MATCH0, WDTIM_EMR(wdt_base));

		/* Internal reset on match output (RESOUT_N not asserted) */

		writel(M_RES1, WDTIM_MCTRL(wdt_base));

	} else {

		/* Instant assert of RESETOUT_N with pulse length 1mS */

		writel(13000, WDTIM_PULSE(wdt_base));

		writel(M_RES2 | RESFRC1 | RESFRC2, WDTIM_MCTRL(wdt_base));

	}



	/* Wait for watchdog to reset system */

	mdelay(1000);