On 27.04.21 10:41, Meng.Li@windriver.com wrote:
From: MengLi meng.li@windriver.com
In uboot command line environment, watchdog is not able to be stopped with below commands: SOCFPGA_STRATIX10 # wdt dev watchdog@ffd00200 SOCFPGA_STRATIX10 # wdt stop Refer to watchdog driver in linux kernel, it is also need to reset watchdog after disable it so that the disable action takes effect.
v2: Change "#if CONFIG_IS_ENABLED(DM_RESET)" into "if (CONFIG_IS_ENABLED(DM_RESET)) {", and define the variable into if condition sentence.
A few comments:
This version changelog belongs below the "---" line.
Please Cc interested people upon new versions, e.g. myself as I reviewed this patch.
Other that this:
Reviewed-by: Stefan Roese sr@denx.de
Thanks, Stefan
Signed-off-by: Meng Li Meng.Li@windriver.com
drivers/watchdog/designware_wdt.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/watchdog/designware_wdt.c b/drivers/watchdog/designware_wdt.c index 12f09a7a39..57cad1effc 100644 --- a/drivers/watchdog/designware_wdt.c +++ b/drivers/watchdog/designware_wdt.c @@ -96,6 +96,23 @@ static int designware_wdt_stop(struct udevice *dev) designware_wdt_reset(dev); writel(0, priv->base + DW_WDT_CR);
if (CONFIG_IS_ENABLED(DM_RESET)) {struct reset_ctl_bulk resets;int ret;ret = reset_get_bulk(dev, &resets);if (ret)return ret;ret = reset_assert_bulk(&resets);if (ret)return ret;ret = reset_deassert_bulk(&resets);if (ret)return ret;- }
- return 0; }
Viele Grüße, Stefan