On Wed, Jun 12, 2024 at 10:02:36AM GMT, Thomas Bonnefille wrote: > LicheeRV Nano B [1] is an embedded development platform based on the SOPHGO > SG2002 chip, the B(ase) version is deprived of Wifi/Bluetooth and Ethernet. > > Add only support for UART and SDHCI. > > 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-licheerv-nano-b.dts | 53 ++++++++++++++++++++++ > 2 files changed, 54 insertions(+) > > diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile > index 57ad82a61ea6..47d4243a8f35 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-$(CONFIG_ARCH_SOPHGO) += sg2002-licheerv-nano-b.dtb > dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb > diff --git a/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts b/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts > new file mode 100644 > index 000000000000..d011fb15b097 > --- /dev/null > +++ b/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts > @@ -0,0 +1,53 @@ > +// SPDX-License-Identifier: (GPL-2.0 OR MIT) > +/* > + * Copyright (C) 2024 Thomas Bonnefille <thomas.bonnefille@xxxxxxxxxxx> > + */ > + > +/dts-v1/; > + > +#include "sg2002.dtsi" > + > +/ { > + model = "LicheeRV Nano B"; > + compatible = "sipeed,licheerv-nano-b", "sipeed,licheerv-nano", "sophgo,sg2002"; > + > + aliases { > + gpio0 = &gpio0; > + gpio1 = &gpio1; > + gpio2 = &gpio2; > + gpio3 = &gpio3; > + serial0 = &uart0; > + serial1 = &uart1; > + serial2 = &uart2; > + serial3 = &uart3; > + serial4 = &uart4; > + }; > + > + chosen { > + stdout-path = "serial0:115200n8"; > + }; > +}; > + > +&osc { > + clock-frequency = <25000000>; > +}; > + > +&sdhci0 { > + status = "okay"; > + bus-width = <4>; > + no-1-8-v; > + no-mmc; > + no-sdio; > +}; Please add "disable-wp" property. Otherwise the card will be probed as read-only. > + > +&uart0 { > + status = "okay"; > +}; > + > +&uart1 { > + status = "okay"; > +}; > + > +&i2c0 { > + status = "okay"; > +}; > > -- > 2.45.2 >
