On Mon, May 27, 2024 at 12:28:21PM GMT, Thomas Bonnefille wrote: > LicheeRV Nano [1] is an embedded development platform base on the SOPHGO > SG2002 chip. > > Add only support for UART. > Although this is OK, I think you can also add sdhci node, it is already supported. > Link: https://wiki.sipeed.com/hardware/en/lichee/RV_Nano/1_intro.html > [1] > > Signed-off-by: Thomas Bonnefille <thomas.bonnefille@xxxxxxxxxxx> > --- > arch/riscv/boot/dts/sophgo/Makefile | 1 + > .../boot/dts/sophgo/sg2002-lichee-rv-nano.dts | 25 ++++++++++++++++++++++ > 2 files changed, 26 insertions(+) > > diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile > index 57ad82a61ea6..5759b21805dc 100644 > --- a/arch/riscv/boot/dts/sophgo/Makefile > +++ b/arch/riscv/boot/dts/sophgo/Makefile > @@ -1,4 +1,5 @@ > # SPDX-License-Identifier: GPL-2.0 > dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb > dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.dtb > +dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-licheerv-nano.dtb > dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb > diff --git a/arch/riscv/boot/dts/sophgo/sg2002-lichee-rv-nano.dts b/arch/riscv/boot/dts/sophgo/sg2002-lichee-rv-nano.dts > new file mode 100644 > index 000000000000..aaad2733801b > --- /dev/null > +++ b/arch/riscv/boot/dts/sophgo/sg2002-lichee-rv-nano.dts > @@ -0,0 +1,25 @@ > +// SPDX-License-Identifier: (GPL-2.0 OR MIT) > +/* > + * Copyright (C) 2024 Thomas Bonnefille <thomas.bonnefille@xxxxxxxxxxx> > + */ > + > +/dts-v1/; > + > +#include "sg2002.dtsi" > + > +/ { > + model = "LicheeRV Nano"; > + compatible = "sipeed,licheerv-nano", "sophgo,sg2002"; Use the right version, rv nano have several versions with different peripherals. The compatible is good for the common file, but not the specific board. > + > + aliases { > + serial0 = &uart0; > + }; > + > + chosen { > + stdout-path = "serial0:115200n8"; > + }; It is also better to add all already support nodes, such as gpio, other uart port. > +}; > + > +&uart0 { > + status = "okay"; > +}; > > -- > 2.45.1 >
