Hi Stafford,
On Sat, 3 Jan 2026 at 07:17, Stafford Horne <[email protected]> wrote:
> On Thu, Dec 18, 2025 at 07:36:08PM +0100, Geert Uytterhoeven wrote:
> > On Wed, 17 Dec 2025 at 09:23, Stafford Horne <[email protected]> wrote:
> > > The de0 nano from Terasic is an FPGA board that we use in the OpenRISC
> > > community to test OpenRISC configurations. Add a base configuration for
> > > the board that runs an OpenRISC CPU at 50Mhz with 32MB ram, UART for
> > > console and some GPIOs for LEDs and switches.
> > >
> > > There is an older version of this floating around that defines all of
> > > the hardware on the board including SPI's, flash devices, sram, ADCs
> > > etc. Eventually it would be good to get the full version upstream
> > > but for now I think a minimal board is good to start with.
> > >
> > > Link: https://openrisc.io/tutorials/de0_nano/
> > > Link: https://github.com/olofk/de0_nano
> > >
> > > Signed-off-by: Stafford Horne <[email protected]>
> > > --- /dev/null
> > > +++ b/arch/openrisc/boot/dts/de0-nano.dts
> > > @@ -0,0 +1,54 @@
> > > +// SPDX-License-Identifier: GPL-2.0
> > > +
> > > +/dts-v1/;
> > > +
> > > +#include "de0-nano-common.dtsi"
> > > +
> > > +/ {
> > > + model = "Terasic DE0 Nano";
> > > + compatible = "opencores,or1ksim";
> > > + #address-cells = <1>;
> > > + #size-cells = <1>;
> > > + interrupt-parent = <&pic>;
> > > +
> > > + aliases {
> > > + uart0 = &serial0;
> > > + };
> > > +
> > > + chosen {
> > > + bootargs = "earlycon";
> >
> > Do you need this?
>
> What do you mean here? I want to keep "earlycon", and it is not supplied in
> de0-nano-common.dtsi.
Why do you want to keep it? "earlycon" is a typical debug option,
and should not be needed during normal use.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
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
