On Mon, Jan 05, 2026 at 12:02:52PM +0100, Geert Uytterhoeven wrote: > 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.
I see, I am always debugging so I leave it on. But, good point for these default configs. I'll remove the debug defaults. Just curious, Do you have a quick way to enable out of tree debug patches i.e. to dts and defconfigs? -Stafford
