Re: [PATCH v3 4/4] ARM: dts: rockchip: Add Onion Omega4 Evaluation Board
From: Jonas Karlman <jonas@kwiboo.se>
Date: 2026-02-10 16:53:59
Also in:
linux-devicetree, linux-rockchip, lkml
Hi Fabio, On 2/10/2026 3:48 PM, Fabio Estevam wrote:
quoted hunk ↗ jump to hunk
From: Fabio Estevam <redacted> The Onion Omega4 Evaluation Board is based on the RV1103B SoC and has: - 256 MB of RAM - 256 MB of SPI-NAND - Ethernet - USB OTG - Wifi - SD card - Camera connector The details can be found at: https://documentation.onioniot.com/omega4/getting-started/ Add the initial support for this board so that it can fully boot into Linux with the root file system stored in the SPI NAND. Signed-off-by: Fabio Estevam <redacted> --- Changes since v3: - Split it in the EVB and SoM dtsi. arch/arm/boot/dts/rockchip/Makefile | 1 + .../boot/dts/rockchip/rv1103b-omega4-evb.dts | 94 +++++++++++++++++++ .../arm/boot/dts/rockchip/rv1103b-omega4.dtsi | 21 +++++ 3 files changed, 116 insertions(+) create mode 100644 arch/arm/boot/dts/rockchip/rv1103b-omega4-evb.dts create mode 100644 arch/arm/boot/dts/rockchip/rv1103b-omega4.dtsidiff --git a/arch/arm/boot/dts/rockchip/Makefile b/arch/arm/boot/dts/rockchip/Makefile index 716f5540e438..d0154fd7ff24 100644 --- a/arch/arm/boot/dts/rockchip/Makefile +++ b/arch/arm/boot/dts/rockchip/Makefile@@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 dtb-$(CONFIG_ARCH_ROCKCHIP) += \ + rv1103b-omega4-evb.dtb \ rv1108-elgin-r1.dtb \ rv1108-evb.dtb \ rv1109-relfor-saib.dtb \diff --git a/arch/arm/boot/dts/rockchip/rv1103b-omega4-evb.dts b/arch/arm/boot/dts/rockchip/rv1103b-omega4-evb.dts new file mode 100644 index 000000000000..686f2dd28eab --- /dev/null +++ b/arch/arm/boot/dts/rockchip/rv1103b-omega4-evb.dts@@ -0,0 +1,94 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2022 Rockchip Electronics Co., Ltd. + * Copyright (c) 2025 plan44.ch/luz + * Copyright (c) 2025 Onion Corporation + */ + +/dts-v1/; + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/leds/common.h> +#include "rv1103b-omega4.dtsi" + +/ { + model = "Onion Omega4 Evaluation Board"; + compatible = "onion,rv1103b-omega4-evb", "onion,rv1103b-omega4", "rockchip,rv1103b";
nit: Is rv1103b needed in all three compatible strings? The last one is already pointing out that this is the rv1103b soc, also the other Onion Omega boards in-tree use onion,omega and onion,omega2+.
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led-0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&led>;
+ gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_HIGH>;
+ function = LED_FUNCTION_STATUS;
+ color = <LED_COLOR_ID_BLUE>;
+ label = "sys";
+ default-state = "on";
+ };
+ };
+};
+
+&fspi0 {
+ status = "okay";
+
+ spi_nand: flash@0 {
+ compatible = "spi-nand";
+ reg = <0>;
+ bootph-pre-ram;
+ bootph-some-ram;
+ spi-max-frequency = <75000000>;
+ spi-rx-bus-width = <4>;
+ spi-tx-bus-width = <1>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "env";
+ reg = <0x00000000 0x00040000>;
+ };
+
+ partition@40000 {
+ label = "idblock";
+ reg = <0x00040000 0x00100000>;
+ read-only;
+ };
+
+ partition@140000 {
+ label = "uboot";
+ reg = <0x00140000 0x00100000>;
+ read-only;
+ };
+
+ partition@240000 {
+ label = "boot";
+ reg = <0x00240000 0x00800000>;
+ };
+
+ partition@a40000 {
+ label = "ubi";
+ reg = <0x00a40000 0x0f5c0000>;
+ };
+ };
+ };
+};The getting started guide [1] list the NAND Flash as part of SOM, should probably be moved to som dtsi. [1] https://documentation.onioniot.com/omega4/getting-started/
quoted hunk ↗ jump to hunk
+&pinctrl { + leds { + led: led { + rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; +};diff --git a/arch/arm/boot/dts/rockchip/rv1103b-omega4.dtsi b/arch/arm/boot/dts/rockchip/rv1103b-omega4.dtsi new file mode 100644 index 000000000000..bf245b547ea2 --- /dev/null +++ b/arch/arm/boot/dts/rockchip/rv1103b-omega4.dtsi@@ -0,0 +1,21 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2022 Rockchip Electronics Co., Ltd. + * Copyright (c) 2025 plan44.ch/luz + * Copyright (c) 2025 Onion Corporation + */ + +/dts-v1/; + +#include "rv1103b.dtsi" + +&uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0m0_xfer>; + bootph-all;
nit: Please sort bootph before pinctrl. Regards, Jonas
+ status = "okay";
+};
+
+&wdt {
+ status = "okay";
+};