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path: root/drivers/watchdog/cdns_wdt.c
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2019-04-26watchdog: cadence: Remove driver specific "timeout-sec" handlingStefan Roese
Now that we have a generic DT property "timeout-sec" handling, the driver specific implementation can be dropped. This patch also changes the timeout restriction to the min and max values (clipping). Before this patch, the value provided via "timeout-sec" was used if the parameter was too high or low. Now the driver specific min and max values are used instead. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Michal Simek <michal.simek@xilinx.com> (on zcu100)
2018-07-19watchdog: cadence: Do not stop wdt in probeMichal Simek
Watchdog can be started before probe and u-boot should just take control over it. That's why do not stop watchdog in probe to cover cases where watchdog can expire before probe and start. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-19watchdog: cdns: Add comment for expire_now functionMichal Simek
IP itself has no reg/no bit which can be used for this functionality. Add this note to the driver to make sure that none will be asking for that. Current method is to setup 1s timeout and hang() which is done via wdt_expire_now(). Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-31watchdog: cadence: Use live-tree functionsMichal Simek
Use live-tree functions. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-11watchdog: cadence: Show used timeout valueMichal Simek
Debug message was showing timeout value which was passed to start function but there is a checking if this value can be setup. The patch is moving this debug printf function below checking. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-23watchdog: cadence: Remove useless ioremapMichal Simek
There is no need to call ioremap. Also reg pointer is completely unused in the driver. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-23watchdog: Add Cadence watchdog driverShreenidhi Shedi
This IP can be found on Zynq and ZynqMP devices. The driver was tested with reset-on-timeout; feature. Also adding WATCHDOG symbol to Kconfig because it is required. Signed-off-by: Shreenidhi Shedi <imshedi@gmail.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>