[U-Boot] [ANN] U-Boot v2015.10-rc4 released

Fabio Estevam festevam at gmail.com
Wed Sep 30 21:03:22 CEST 2015


On Wed, Sep 30, 2015 at 3:56 PM, Fabio Estevam <festevam at gmail.com> wrote:
> On Wed, Sep 30, 2015 at 3:33 PM, Sinan Akman <sinan at writeme.com> wrote:
>
>>   Nope, AFAICS it doesn't make any difference.
>
> Ok, the issue is due to endianness: on LS1021 the watchdog is
> big-endian, so that's why we can't use clrsetbits_le16().
>
> Please check:
> http://git.freescale.com/git/cgit.cgi/layerscape/ls1021a/linux.git/commit/?id=b53a344d20f6ffdc383d990a9636efb53ce272a9
>
> What about this?
>
> --- a/drivers/watchdog/imx_watchdog.c
> +++ b/drivers/watchdog/imx_watchdog.c
> @@ -54,8 +54,11 @@ void hw_watchdog_init(void)
>  void reset_cpu(ulong addr)
>  {
>         struct watchdog_regs *wdog = (struct watchdog_regs *)WDOG1_BASE_ADDR;
> +       int reg;

ops, this should be u16 instead.

>
> -       clrsetbits_le16(&wdog->wcr, 0, WCR_WDE);
> +       reg = readw(&wdog->wcr);
> +       reg |= WCR_WDE;
> +       writew(reg, &wdog->wcr);
>
>         writew(0x5555, &wdog->wsr);
>         writew(0xaaaa, &wdog->wsr);     /* load minimum 1/2 second timeout */


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