RE: [PATCH v5 1/2] drivers: watchdog: add a driver to support SAMA5D4 watchdog timer

2015-08-06 Thread Yang, Wenyou
t; Cc: sylvain.roc...@finsecur.com; Ferre, Nicolas; boris.brezillon@free- > electrons.com; devicet...@vger.kernel.org; linux-kernel@vger.kernel.org; > linux- > watch...@vger.kernel.org; linux-arm-ker...@lists.infradead.org > Subject: Re: [PATCH v5 1/2] drivers: watchdog: add a driver to support SA

Re: [PATCH v5 1/2] drivers: watchdog: add a driver to support SAMA5D4 watchdog timer

2015-08-06 Thread Guenter Roeck
Hi, On 08/06/2015 01:34 AM, Wenyou Yang wrote: From SAMA5D4, the watchdog timer is upgrated with a new feature, Where does the additional ">" come from ? which is describled as in the datasheet, "WDT_MR can be written until a LOCKMR command is issued in WDT_CR". That is to say, as long as th

[PATCH v5 1/2] drivers: watchdog: add a driver to support SAMA5D4 watchdog timer

2015-08-06 Thread Wenyou Yang
>From SAMA5D4, the watchdog timer is upgrated with a new feature, which is describled as in the datasheet, "WDT_MR can be written until a LOCKMR command is issued in WDT_CR". That is to say, as long as the bootstrap and u-boot don't issue a LOCKMR command, WDT_MR can be written more than once in th