From mboxrd@z Thu Jan  1 00:00:00 1970
From: takahiro.akashi at linaro.org <takahiro.akashi@linaro.org>
Date: Thu, 22 Oct 2020 18:49:34 +0900
Subject: [PATCH 1/4] serial: serial_xen: print U-Boot banner and others
In-Reply-To: <2d6fa531ad0c63418223f2a97b427614ed7b4b9e.camel@epam.com>
References: <20201015042516.41197-1-takahiro.akashi@linaro.org>
 <20201015042516.41197-2-takahiro.akashi@linaro.org>
 <2d6fa531ad0c63418223f2a97b427614ed7b4b9e.camel@epam.com>
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On Thu, Oct 22, 2020 at 09:18:02AM +0000, Anastasiia Lukianenko wrote:
> Hi,
> 
> On Thu, 2020-10-15 at 13:25 +0900, AKASHI Takahiro wrote:
> > At present, DM_FLAG_PRE_RELOC is set only if !OF_CONTROL.
> > It doesn't make sense for this para-virtualized driver.
> > 
> > With this patch applied, you will be able to see early boot messages:
> > 
> > U-Boot 2020.10-00001-ge442e71a6c52-dirty (Oct 15 2020 - 11:02:25
> > +0900)
> > xenguest
> > 
> > Xen virtual CPU
> > Model: XENVM-4.15
> > DRAM:  128 MiB
> > PVBLOCK:
> > (XEN) gnttab_mark_dirty not implemented yet
> > pvblock: 0
> > In:    hypervisor
> > Out:   hypervisor
> > Err:   hypervisor
> > xenguest#
> > 
> > Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> > ---
> >  drivers/serial/serial_xen.c | 2 --
> >  1 file changed, 2 deletions(-)
> > 
> > diff --git a/drivers/serial/serial_xen.c
> > b/drivers/serial/serial_xen.c
> > index ba6504b94796..ed191829f059 100644
> > --- a/drivers/serial/serial_xen.c
> > +++ b/drivers/serial/serial_xen.c
> > @@ -175,8 +175,6 @@ U_BOOT_DRIVER(serial_xen) = {
> >  	.priv_auto_alloc_size	= sizeof(struct xen_uart_priv),
> >  	.probe			= xen_serial_probe,
> >  	.ops			= &xen_serial_ops,
> > -#if !CONFIG_IS_ENABLED(OF_CONTROL)
> >  	.flags			= DM_FLAG_PRE_RELOC,
> > -#endif
> >  };
> >  
> 
> I applied this patch and unfortunately on ARM there were no logs. I
> think this series should be improved a little.

I will check.
Please tell me
 - the board that you're using
 - the version of Xen
   (and .config)

Thanks,
-Takahiro Akashi

> Regards,
> Anastasiia