[U-Boot] i.MX6 based board does not work if watchdog support is enabled

[Otavio Salvador]

On Sun, Sep 29, 2013 at 1:57 PM, Anatolij Gustschin <agust at denx.de> wrote:
> On Sat, 28 Sep 2013 21:19:19 -0300
> Otavio Salvador <otavio at ossystems.com.br> wrote:
>
>> I am trying to add support for watchdog in one board and it is not
>> working as expected.
>>
>> I did add the:
>>
>> #define CONFIG_HW_WATCHDOG
>> #define CONFIG_IMX_WATCHDOG
>>
>> into the board config file.
>>
>> Into the board .c file, I added:
>>
>> int board_late_init(void)
>> {
>> ...
>> #ifdef CONFIG_HW_WATCHDOG
>>      hw_watchdog_init();
>> #endif
>>
>> return 0;
>> }
>>
>> and the hw_watchdog_init is indeed called.
>>
>> It starts booting and shows:
>>
>> U-Boot 2013.10-rc3-00046-gc1c2434-dirty (Sep 28 2013 - 21:12:53)
>>
>> CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
>> Reset cause: WDOG
>> Board: yyyy
>> DRAM:  1 GiB
>> MMC:   FSL_SDHC: 0, FSL_SDHC: 1
>> In:    serial
>> Out:   serial
>> Err:   serial
>> Net:�
>>
>> and it in fact resets.
>>
>> I am booting the board from USB loader. May it be an issue?
>
> No, it shouldn't be an issue. Does the attached patch help?

It does fix the issue! :-)

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750