linux-kernel - Re: [PATCH] serial: 8250_early: Add earlycon support for Synopsys DesignWare ABP UART

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Message-ID: <20160519213516.GA12456@broadcom.com>
Date:	Thu, 19 May 2016 17:35:17 -0400
From:	Jon Mason <jon.mason@...adcom.com>
To:	Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org,
	linux-kernel@...r.kernel.org, guohanjun@...wei.com,
	Wei Xu <xuwei5@...ilicon.com>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] serial: 8250_early: Add earlycon support for Synopsys
 DesignWare ABP UART

On Thu, May 19, 2016 at 09:45:33AM +0800, Kefeng Wang wrote:
> +Cc Jon and arm-kernel mailist
> 
> Any comments, thanks.

It works for me.  Please feel free to add

Tested-by: Jon Mason <jon.mason@...adcom.com>

Thanks,
Jon

> 
> Kefeng
> 
> On 2016/5/11 14:06, Kefeng Wang wrote:
> > Some board like Hisilicon D02 uses Synopsys DesignWare ABP UART, declare an
> > OF early console for it, so early console device can be enabled with comand
> > line "earlycon"(without option) via the "stdout-path" property in device-tree.
> > 
> > Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
> > ---
> >  drivers/tty/serial/8250/8250_early.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c
> > index 8d08ff5..85a12f0 100644
> > --- a/drivers/tty/serial/8250/8250_early.c
> > +++ b/drivers/tty/serial/8250/8250_early.c
> > @@ -150,6 +150,7 @@ EARLYCON_DECLARE(uart, early_serial8250_setup);
> >  OF_EARLYCON_DECLARE(ns16550, "ns16550", early_serial8250_setup);
> >  OF_EARLYCON_DECLARE(ns16550a, "ns16550a", early_serial8250_setup);
> >  OF_EARLYCON_DECLARE(uart, "nvidia,tegra20-uart", early_serial8250_setup);
> > +OF_EARLYCON_DECLARE(uart, "snps,dw-apb-uart", early_serial8250_setup);
> >  
> >  #ifdef CONFIG_SERIAL_8250_OMAP
> >  
> > 
>