[U-Boot] mx6ull evk reboots automatically

[Ye Li]

Hi Fabio,

> -----Original Message-----
> From: U-Boot [mailto:u-boot-bounces at lists.denx.de] On Behalf Of Peng Fan
> Sent: Thursday, November 23, 2017 9:40 AM
> To: Fabio Estevam <festevam at gmail.com>
> Cc: U-Boot-Denx <u-boot at lists.denx.de>
> Subject: Re: [U-Boot] mx6ull evk reboots automatically
> 
> Hi Fabio,
> 
> > -----Original Message-----
> > From: Fabio Estevam [mailto:festevam at gmail.com]
> > Sent: Thursday, November 23, 2017 3:07 AM
> > To: Peng Fan <peng.fan at nxp.com>
> > Cc: U-Boot-Denx <u-boot at lists.denx.de>
> > Subject: mx6ull evk reboots automatically
> >
> > Hi Peng,
> >
> > Booting a mainline U-Boot on a imx6ull evk with a mainline kernel
> > causes the board to reboot after about 5 seconds from reaching the Linux
> prompt.
> >
> > If I use the NXP U-Boot version this problem does not happen.
> >
> > Do you have any suggestion to fix this problem?
> 
> This maybe wdog related settings. You could try disable wdog in kernel or
> check Wdog settings in uboot. It maybe kernel configure wdog pins and trigger
> reset.

 The wdog3 is not disabled for i.mx6ull on mainline U-boot. Please fix it in imx_set_wdog_powerdown.

   if (is_mx6sx() || is_mx6ul() || is_mx6ull() || is_mx7())
		writew(enable, &wdog3->wmcr);

Best regards,
Ye Li

> 
> Regards,
> Peng.
> 
> >
> > Thanks,
> >
> > Fabio Estevam
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.de
> nx.de%2Flistinfo%2Fu-
> boot&data=02%7C01%7Cye.li%40nxp.com%7C9b3b91b0a1694da6a8cf08d5321
> 31ce7%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C6364699800380
> 79598&sdata=%2FWH73G3X8dfGDdng6EVae8oa9YxrYE7%2FjFC%2BX2h0piI%3
> D&reserved=0