[U-Boot] serial: ns16550: fix debug uart putc called before init

[Tom Rini]

On Wed, Jan 16, 2019 at 05:52:24PM +0100, Simon Goldschmidt wrote:
> On Wed, Jan 16, 2019 at 3:44 AM Tom Rini <trini at konsulko.com> wrote:
> >
> > On Wed, Jan 09, 2019 at 08:35:31PM +0100, Simon Goldschmidt wrote:
> >
> > > If _debug_uart_putc() is called before _debug_uart_init(), the
> > > ns16550 debug uart driver hangs in a tight loop waiting for the
> > > tx FIFO to get empty.
> > >
> > > As this can happen via a printf sneaking in before the port calls
> > > debug_uart_init(), introduce a config option to ignore characters
> > > before the debug uart is initialized.
> > >
> > > This is done by reading the baudrate divisor and aborting if is zero.
> > >
> > > The Kconfig option is required as reading the baudrate divisor does
> > > not seem to work for all ns16500 compatibles (which is why the last
> > > attempt on this has been reverted in 1a67969a99).
> > >
> > > Tested on socfpga_cyclone5_socrates.
> > >
> > > Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
> > > Reviewed-by: Simon Glass <sjg at chromium.org>
> >
> > Applied to u-boot/master, thanks!
> 
> I don't see this or any of my other patches in u-boot/master (neither github
> nor denx.de), is that expected?

No, that was strange.  While I swore I had pushed, apparently I had not.
Fixed, thanks!

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: not available
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20190116/9a409462/attachment.sig>