[PATCH v11 6/8] arm64: renesas: add Salvator-X board support on DTS

Geert Uytterhoeven geert at linux-m68k.org
Tue Nov 3 06:24:06 PST 2015

Hi Mark, Rob,

On Thu, Oct 29, 2015 at 8:52 AM, Geert Uytterhoeven
<geert at linux-m68k.org> wrote:
> On Fri, Oct 23, 2015 at 9:00 AM, Simon Horman <horms at verge.net.au> wrote:
>> On Thu, Oct 15, 2015 at 12:01:40PM +0100, Mark Rutland wrote:
>>> > +           stdout-path = &scif2;
>>> No rate? It would be better to be explicit here; you should be able to
>>> have:
>>>       stdout-path = "serial0:115200n8"
>>> Where "115200n8" is replaced with whatever configuration this board
>>> actually has.
>> I think that we have had this discussion before in relation to
>> a different board for a different Renesas SoC but I could be mistaken.
> IIRC, at that time the code to parse the options wasn't upstream yet, so
> adding the options would have broken the serial console.
> I can confirm it works fine on Salvator-X with
>         stdout-path = "serial0:115200n8";

Unfortunately this breaks earlycon support:

        Malformed early option 'earlycon'

The call to fdt_getprop() in early_init_dt_scan_chosen_serial() fails.
I guess that unlike the standard console handling code, the fdt code can't
handle aliases yet?

P.S. SCIF earlycon support is not yet upstream, as it still doesn't work on
arm32 (I discovered today it does on arm64 ;-): it pretends to work, but
nothing is output to the serial port (until the normal serial console kicks



Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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