From: "Pali Rohár" <pali@kernel.org>
To: u-boot@lists.denx.de
Subject: [PATCH 4/4] arm: mvebu: Espressobin: Enable watchdog support but do not start it
Date: Fri, 5 Mar 2021 22:36:59 +0100 [thread overview]
Message-ID: <20210305213659.31025-4-pali@kernel.org> (raw)
In-Reply-To: <20210305213659.31025-1-pali@kernel.org>
Espressobin had disabled watchdog support (CONFIG_WDT) because older stable
Linux kernel versions (which are used by current stable OpenWRT and Debian
versions) do not have support for Armada 3700 watchdog driver. Therefore
they are not able to periodically kick watchdog so Espressobin enter into
boot loop.
This change enable CONFIG_WDT, CONFIG_WDT_ARMADA_37XX and CONFIG_CMD_WDT
options which add support for U-Boot 'wdt' command. And unset new
CONFIG_WATCHDOG_AUTOSTART option which cause that watchdog is not
automatically started by U-Boot during init phase, like when CONFIG_WDT
option is not set at all.
So with this change, U-Boot on Espressobin would have working 'wdt' command
which can be used from boot scripts (e.g. for enabling watchdog prior new
Linux booting kernel). But default behavior of watchdog status stays
unchanged, U-Boot does not start watchdog on Espressobin during its init
phase.
Signed-off-by: Pali Roh?r <pali@kernel.org>
---
configs/mvebu_espressobin-88f3720_defconfig | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/configs/mvebu_espressobin-88f3720_defconfig b/configs/mvebu_espressobin-88f3720_defconfig
index c791f98dfea5..20aa21b06b3d 100644
--- a/configs/mvebu_espressobin-88f3720_defconfig
+++ b/configs/mvebu_espressobin-88f3720_defconfig
@@ -32,6 +32,7 @@ CONFIG_CMD_MMC=y
CONFIG_CMD_PCI=y
CONFIG_CMD_SPI=y
CONFIG_CMD_USB=y
+CONFIG_CMD_WDT=y
CONFIG_CMD_TFTPPUT=y
CONFIG_CMD_CACHE=y
CONFIG_CMD_TIME=y
@@ -88,5 +89,8 @@ CONFIG_USB_ETHER_ASIX=y
CONFIG_USB_ETHER_MCS7830=y
CONFIG_USB_ETHER_RTL8152=y
CONFIG_USB_ETHER_SMSC95XX=y
+# CONFIG_WATCHDOG_AUTOSTART is not set
+CONFIG_WDT=y
+CONFIG_WDT_ARMADA_37XX=y
CONFIG_SHA1=y
CONFIG_SHA256=y
--
2.20.1
next prev parent reply other threads:[~2021-03-05 21:36 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-05 21:36 [PATCH 1/4] watchdog: Set/unset GD_FLG_WDT_READY flag in wdt_start()/wdt_stop() Pali Rohár
2021-03-05 21:36 ` [PATCH 2/4] watchdog: Show error message when initr_watchdog() cannot start watchdog Pali Rohár
2021-03-09 11:27 ` Stefan Roese
2021-03-05 21:36 ` [PATCH 3/4] watchdog: Allow to use CONFIG_WDT without starting watchdog Pali Rohár
2021-03-09 11:33 ` Stefan Roese
2021-03-09 13:27 ` Pali Rohár
2021-03-09 16:12 ` Stefan Roese
2021-03-09 16:14 ` Pali Rohár
2021-03-05 21:36 ` Pali Rohár [this message]
2021-03-09 11:34 ` [PATCH 4/4] arm: mvebu: Espressobin: Enable watchdog support but do not start it Stefan Roese
2021-03-09 11:26 ` [PATCH 1/4] watchdog: Set/unset GD_FLG_WDT_READY flag in wdt_start()/wdt_stop() Stefan Roese
2021-03-09 13:26 ` [PATCH v2 " Pali Rohár
2021-03-09 13:26 ` [PATCH v2 2/4] watchdog: Show error message when initr_watchdog() cannot start watchdog Pali Rohár
2021-03-09 16:13 ` Stefan Roese
2021-03-09 13:26 ` [PATCH v2 3/4] watchdog: Allow to use CONFIG_WDT without starting watchdog Pali Rohár
2021-03-09 16:13 ` Stefan Roese
2021-03-09 13:26 ` [PATCH v2 4/4] arm: mvebu: Espressobin: Enable watchdog support but do not start it Pali Rohár
2021-03-09 16:13 ` Stefan Roese
2021-03-09 16:13 ` [PATCH v2 1/4] watchdog: Set/unset GD_FLG_WDT_READY flag in wdt_start()/wdt_stop() Stefan Roese
2021-04-06 10:28 ` Stefan Roese
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