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riscv: dts: sophgo: Add LicheeRV Nano board device tree

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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@bootlin.com>
Reviewed-by: Inochi Amaoto <inochiama@gmail.com>
Link: https://lore.kernel.org/r/20241010-sg2002-v5-2-a0f2e582b932@bootlin.com
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
This commit is contained in:
Thomas Bonnefille 2024-10-10 17:07:07 +02:00 committed by Inochi Amaoto
parent 93b61555f5
commit d32552307b
2 changed files with 96 additions and 0 deletions
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1
arch/riscv/boot/dts/sophgo/Makefile
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@ -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

95
arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts Normal file
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@ -0,0 +1,95 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2024 Thomas Bonnefille <thomas.bonnefille@bootlin.com>
*/
/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>;
};
&pinctrl {
uart0_cfg: uart0-cfg {
uart0-pins {
pinmux = <PINMUX(PIN_UART0_TX, 0)>,
<PINMUX(PIN_UART0_RX, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
};
sdhci0_cfg: sdhci0-cfg {
sdhci0-clk-pins {
pinmux = <PINMUX(PIN_SD0_CLK, 0)>;
bias-pull-up;
drive-strength-microamp = <16100>;
power-source = <3300>;
};
sdhci0-cmd-pins {
pinmux = <PINMUX(PIN_SD0_CMD, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
sdhci0-data-pins {
pinmux = <PINMUX(PIN_SD0_D0, 0)>,
<PINMUX(PIN_SD0_D1, 0)>,
<PINMUX(PIN_SD0_D2, 0)>,
<PINMUX(PIN_SD0_D3, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
sdhci0-cd-pins {
pinmux = <PINMUX(PIN_SD0_CD, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
};
};
&sdhci0 {
pinctrl-0 = <&sdhci0_cfg>;
pinctrl-names = "default";
status = "okay";
bus-width = <4>;
no-1-8-v;
no-mmc;
no-sdio;
disable-wp;
};
&uart0 {
pinctrl-0 = <&uart0_cfg>;
pinctrl-names = "default";
status = "okay";
};