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

[Anatolij Gustschin <agust@denx.de>]

Hi,

On Sat, 28 Sep 2013 21:19:19 -0300
Otavio Salvador <otavio@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?

Thanks,

Anatolij