[U-Boot] [U-Boot, v3] xyz-modem: Fix timeout loop waiting with WATCHDOG

[Tom Rini]

On Tue, Jan 08, 2019 at 07:28:35PM +0530, Lokesh Vutla wrote:

> Commit 2c77c0d6524eb ("xyz-modem: Change getc timeout loop waiting")
> fixes the loop delay when using a hw watchdog, assuming that watchdog
> kicking is taken care of by getc(). But the xyzmodem driver tries to
> do a getc only after confirming that a character is available like below:
> 	while (!tstc()) {
> 		till timeout;
> 	}
> 	if (tstc())
> 		*c = getc();
> 
> and getc() does a watchdog reset only if it fails to see a character.
> In this case, getc() always sees a character and never does a
> watchdog reset. So to make sure that watchdog doesn't get reset
> while loading the file, do a watchdog reset just before starting the
> image loading.
> 
> Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
> Signed-off-by: Vignesh R <vigneshr at ti.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/master, thanks!

-- 
Tom
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