[PATCH 0/6] arm64: dts: rockchip: Add ROCK 2A/2F, Sige1 and NanoPi Zero2

[PATCH 0/6] arm64: dts: rockchip: Add ROCK 2A/2F, Sige1 and NanoPi Zero2

[Jonas Karlman]

This series adds dt-bindings and initial device tree for the following
Rockchip RK3528A boards:
- Radxa ROCK 2A/2F
- ArmSoM Sige1
- FriendlyElec NanoPi Zero2

The bt/wifi_reg_on pins are described in the device tree using
rfkill-gpio nodes.

These boards can be booted from emmc or sd-card using the U-Boot 2025.07
generic-rk3528 target.

The patch "arm64: dts: rockchip: Fix pinctrl node names for RK3528" [1]
is recommended to remove a few CHECK_DTBS=y W=2 node_name_chars_strict
warnings for these boards.

[1] https://lore.kernel.org/r/20250621113859.2146400-1-jonas@kwiboo.se

Jonas Karlman (6):
  dt-bindings: arm: rockchip: Add Radxa ROCK 2A/2F
  arm64: dts: rockchip: Add Radxa ROCK 2A/2F
  dt-bindings: arm: rockchip: Add ArmSoM Sige1
  arm64: dts: rockchip: Add ArmSoM Sige1
  dt-bindings: arm: rockchip: Add FriendlyElec NanoPi Zero2
  arm64: dts: rockchip: Add FriendlyElec NanoPi Zero2

 .../devicetree/bindings/arm/rockchip.yaml     |  17 +
 arch/arm64/boot/dts/rockchip/Makefile         |   4 +
 .../boot/dts/rockchip/rk3528-armsom-sige1.dts | 449 ++++++++++++++++++
 .../boot/dts/rockchip/rk3528-nanopi-zero2.dts | 341 +++++++++++++
 .../boot/dts/rockchip/rk3528-rock-2.dtsi      | 292 ++++++++++++
 .../boot/dts/rockchip/rk3528-rock-2a.dts      |  82 ++++
 .../boot/dts/rockchip/rk3528-rock-2f.dts      |  10 +
 7 files changed, 1195 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dts
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts

-- 
2.49.0


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[PATCH 1/6] dt-bindings: arm: rockchip: Add Radxa ROCK 2A/2F

[Jonas Karlman]

The ROCK 2A and ROCK 2F is a high-performance single board computer
developed by Radxa, based on the Rockchip RK3528A SoC.

Add devicetree binding documentation for the Radxa ROCK 2A and ROCK 2F
boards.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
 Documentation/devicetree/bindings/arm/rockchip.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 58b9312c6c73..6636f98561e7 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -875,6 +875,13 @@ properties:
           - const: radxa,rock
           - const: rockchip,rk3188
 
+      - description: Radxa ROCK 2A/2F
+        items:
+          - enum:
+              - radxa,rock-2a
+              - radxa,rock-2f
+          - const: rockchip,rk3528
+
       - description: Radxa ROCK Pi 4A/A+/B/B+/C
         items:
           - enum:
-- 
2.49.0


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[PATCH 2/6] arm64: dts: rockchip: Add Radxa ROCK 2A/2F

[Jonas Karlman]

The ROCK 2A and ROCK 2F is a high-performance single board computer
developed by Radxa, based on the Rockchip RK3528A SoC.

Add initial device tree for the Radxa ROCK 2A and ROCK 2F boards.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
Schematics:
- https://dl.radxa.com/rock2/2a/v1.2/radxa_rock_2a_v1.2_schematic.pdf
- https://dl.radxa.com/rock2/2f/radxa_rock2f_v1.01_schematic.pdf
---
 arch/arm64/boot/dts/rockchip/Makefile         |   2 +
 .../boot/dts/rockchip/rk3528-rock-2.dtsi      | 292 ++++++++++++++++++
 .../boot/dts/rockchip/rk3528-rock-2a.dts      |  82 +++++
 .../boot/dts/rockchip/rk3528-rock-2f.dts      |  10 +
 4 files changed, 386 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index e43565c53c56..d0d21f5029ea 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -90,6 +90,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399pro-rock-pi-n10.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-radxa-e20c.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-rock-2a.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-rock-2f.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3562-evb2-v10.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg-arc-d.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg-arc-s.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi b/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
new file mode 100644
index 000000000000..fc23c51836b1
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pwm/pwm.h>
+#include "rk3528.dtsi"
+
+/ {
+	aliases {
+		i2c1 = &i2c1;
+		mmc0 = &sdhci;
+		mmc1 = &sdmmc;
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:1500000n8";
+	};
+
+	adc-keys {
+		compatible = "adc-keys";
+		io-channels = <&saradc 0>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1800000>;
+		poll-interval = <100>;
+
+		button-maskrom {
+			label = "MASKROM";
+			linux,code = <KEY_SETUP>;
+			press-threshold-microvolt = <0>;
+		};
+	};
+
+	leds: leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&state_led_b>;
+
+		led-state {
+			color = <LED_COLOR_ID_BLUE>;
+			default-state = "on";
+			function = LED_FUNCTION_HEARTBEAT;
+			gpios = <&gpio1 RK_PA3 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	vdd_0v9: regulator-0v9-vdd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_0v9";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <900000>;
+		regulator-max-microvolt = <900000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_ddr: regulator-1v1-vcc-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_ddr";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1100000>;
+		regulator-max-microvolt = <1100000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_1v8: regulator-1v8-vcc {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_1v8";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc_3v3>;
+	};
+
+	vcc_3v3: regulator-3v3-vcc {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_wifi: regulator-3v3-vcc-wifi {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio4 RK_PA4 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_wifi_pwr>;
+		regulator-name = "vcc_wifi";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_3v3>;
+	};
+
+	vcc5v0_sys: regulator-5v0-vcc-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	vcc5v0_usb20: regulator-5v0-vcc-usb20 {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio0 RK_PA1 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_host_en>;
+		regulator-name = "vcc5v0_usb20";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vccio_sd: regulator-vccio-sd {
+		compatible = "regulator-gpio";
+		gpios = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdmmc_vol_ctrl_h>;
+		regulator-name = "vccio_sd";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		states = <1800000 0x0>, <3300000 0x1>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vdd_arm: regulator-vdd-arm {
+		compatible = "pwm-regulator";
+		pwms = <&pwm1 0 5000 PWM_POLARITY_INVERTED>;
+		pwm-supply = <&vcc5v0_sys>;
+		regulator-name = "vdd_arm";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <746000>;
+		regulator-max-microvolt = <1201000>;
+		regulator-settling-time-up-us = <250>;
+	};
+
+	vdd_logic: regulator-vdd-logic {
+		compatible = "pwm-regulator";
+		pwms = <&pwm2 0 5000 PWM_POLARITY_INVERTED>;
+		pwm-supply = <&vcc5v0_sys>;
+		regulator-name = "vdd_logic";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <705000>;
+		regulator-max-microvolt = <1006000>;
+		regulator-settling-time-up-us = <250>;
+	};
+
+	rfkill {
+		compatible = "rfkill-gpio";
+		label = "rfkill-wlan";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_reg_on_h>;
+		radio-type = "wlan";
+		shutdown-gpios = <&gpio1 RK_PA6 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu1 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu2 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu3 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&gpu {
+	mali-supply = <&vdd_logic>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1m0_xfer>;
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "belling,bl24c16a", "atmel,24c16";
+		reg = <0x50>;
+		pagesize = <16>;
+		read-only;
+		vcc-supply = <&vcc_3v3>;
+	};
+};
+
+&pinctrl {
+	bluetooth {
+		bt_wake_host_h: bt-wake-host-h {
+			rockchip,pins = <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
+		host_wake_bt_h: host-wake-bt-h {
+			rockchip,pins = <1 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	leds {
+		state_led_b: state-led-b {
+			rockchip,pins = <1 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	sdmmc {
+		sdmmc_vol_ctrl_h: sdmmc-vol-ctrl-h {
+			rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	usb {
+		usb_host_en: usb-host-en {
+			rockchip,pins = <0 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	wifi {
+		usb_wifi_pwr: usb-wifi-pwr {
+			rockchip,pins = <4 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		wifi_reg_on_h: wifi-reg-on-h {
+			rockchip,pins = <1 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		wifi_wake_host_h: wifi-wake-host-h {
+			rockchip,pins = <1 RK_PA7 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+	};
+};
+
+&pwm1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm1m0_pins>;
+	status = "okay";
+};
+
+&pwm2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm2m0_pins>;
+	status = "okay";
+};
+
+&saradc {
+	vref-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&sdhci {
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	no-sd;
+	no-sdio;
+	non-removable;
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&vccio_sd>;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0m0_xfer>;
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts b/arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
new file mode 100644
index 000000000000..c6f4d9b683d8
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include "rk3528-rock-2.dtsi"
+
+/ {
+	model = "Radxa ROCK 2A";
+	compatible = "radxa,rock-2a", "rockchip,rk3528";
+
+	aliases {
+		ethernet0 = &gmac1;
+	};
+
+	vcc5v0_usb30_otg: regulator-5v0-vcc-usb30-otg {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio1 RK_PC3 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_otg_en>;
+		regulator-name = "vcc5v0_usb30_otg";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+};
+
+&gmac1 {
+	clock_in_out = "output";
+	phy-handle = <&rgmii_phy>;
+	phy-mode = "rgmii-id";
+	phy-supply = <&vcc_3v3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&rgmii_miim>, <&rgmii_tx_bus2>, <&rgmii_rx_bus2>,
+		    <&rgmii_rgmii_clk>, <&rgmii_rgmii_bus>;
+	status = "okay";
+};
+
+&leds {
+	pinctrl-names = "default";
+	pinctrl-0 = <&state_led_b>, <&sys_led_g>;
+
+	led-sys {
+		color = <LED_COLOR_ID_GREEN>;
+		default-state = "on";
+		function = LED_FUNCTION_STATUS;
+		gpios = <&gpio3 RK_PC1 GPIO_ACTIVE_LOW>;
+		linux,default-trigger = "default-on";
+	};
+};
+
+&mdio1 {
+	rgmii_phy: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&gmac1_rstn_l>;
+		reset-assert-us = <20000>;
+		reset-deassert-us = <100000>;
+		reset-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&pinctrl {
+	ethernet {
+		gmac1_rstn_l: gmac1-rstn-l {
+			rockchip,pins = <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	leds {
+		sys_led_g: sys-led-g {
+			rockchip,pins = <3 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	usb {
+		usb_otg_en: usb-otg-en {
+			rockchip,pins = <1 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts b/arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts
new file mode 100644
index 000000000000..3e2b9b685cb2
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include "rk3528-rock-2.dtsi"
+
+/ {
+	model = "Radxa ROCK 2F";
+	compatible = "radxa,rock-2f", "rockchip,rk3528";
+};
-- 
2.49.0


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[PATCH 3/6] dt-bindings: arm: rockchip: Add ArmSoM Sige1

[Jonas Karlman]

The Sige1 is a single board computer developed by ArmSoM, based on the
Rockchip RK3528A SoC.

Add devicetree binding documentation for the ArmSoM Sige1 board.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
 Documentation/devicetree/bindings/arm/rockchip.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 6636f98561e7..e955e3334e35 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -54,6 +54,11 @@ properties:
           - const: ariaboard,photonicat
           - const: rockchip,rk3568
 
+      - description: ArmSoM Sige1 board
+        items:
+          - const: armsom,sige1
+          - const: rockchip,rk3528
+
       - description: ArmSoM Sige5 board
         items:
           - const: armsom,sige5
-- 
2.49.0


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[PATCH 4/6] arm64: dts: rockchip: Add ArmSoM Sige1

[Jonas Karlman]

The Sige1 is a single board computer developed by ArmSoM, based on the
Rockchip RK3528A SoC.

Add initial device tree for the ArmSoM Sige1 board.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
Schematics: https://drive.google.com/drive/folders/15uvc2lcOAKP0enXezASUhVFLuzkq3IEX
---
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../boot/dts/rockchip/rk3528-armsom-sige1.dts | 449 ++++++++++++++++++
 2 files changed, 450 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index d0d21f5029ea..e86131b03692 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -89,6 +89,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rockpro64-screen.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399pro-rock-pi-n10.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-armsom-sige1.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-radxa-e20c.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-rock-2a.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-rock-2f.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts b/arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts
new file mode 100644
index 000000000000..15d8d32572e8
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts
@@ -0,0 +1,449 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pwm/pwm.h>
+#include "rk3528.dtsi"
+
+/ {
+	model = "ArmSoM Sige1";
+	compatible = "armsom,sige1", "rockchip,rk3528";
+
+	aliases {
+		ethernet0 = &gmac1;
+		i2c0 = &i2c0;
+		mmc0 = &sdhci;
+		mmc1 = &sdmmc;
+		mmc2 = &sdio0;
+		serial0 = &uart0;
+		serial2 = &uart2;
+	};
+
+	chosen {
+		stdout-path = "serial0:1500000n8";
+	};
+
+	adc-keys {
+		compatible = "adc-keys";
+		io-channels = <&saradc 0>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1800000>;
+		poll-interval = <100>;
+
+		button-maskrom {
+			label = "MASKROM";
+			linux,code = <KEY_SETUP>;
+			press-threshold-microvolt = <0>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&g_led>, <&r_led>;
+
+		led-green {
+			color = <LED_COLOR_ID_GREEN>;
+			default-state = "on";
+			function = LED_FUNCTION_HEARTBEAT;
+			gpios = <&gpio3 RK_PB3 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		led-red {
+			color = <LED_COLOR_ID_RED>;
+			default-state = "on";
+			function = LED_FUNCTION_STATUS;
+			gpios = <&gpio3 RK_PB2 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-on";
+		};
+	};
+
+	vcc0v6_ddr: regulator-0v6-vcc-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc0v6_ddr";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <600000>;
+		regulator-max-microvolt = <600000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vdd_0v9: regulator-0v9-vdd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_0v9";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <900000>;
+		regulator-max-microvolt = <900000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_ddr: regulator-1v1-vcc-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_ddr";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1100000>;
+		regulator-max-microvolt = <1100000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_1v8: regulator-1v8-vcc {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_1v8";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc_3v3>;
+	};
+
+	vcc1v8_ddr: regulator-1v8-vcc-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc1v8_ddr";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_3v3: regulator-3v3-vcc {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_dcin>;
+	};
+
+	vcc3v3_sd: regulator-3v3-vcc-sd {
+		compatible = "regulator-fixed";
+		gpios = <&gpio4 RK_PA1 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdmmc_pwren_l>;
+		regulator-name = "vcc3v3_sd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_3v3>;
+	};
+
+	vcc5v0_sys: regulator-5v0-vcc-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_dcin>;
+	};
+
+	vcc5v0_usb1_host: regulator-5v0-vcc-usb1-host {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio4 RK_PB1 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb20_host1_drv_h>;
+		regulator-name = "vcc5v0_usb1_host";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc5v0_usb2_host: regulator-5v0-vcc-usb2-host {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio4 RK_PB0 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb20_host2_drv_h>;
+		regulator-name = "vcc5v0_usb2_host";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc5v0_usb_otg: regulator-5v0-vcc-usb-otg {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio1 RK_PB4 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb20_otg0_drv_h>;
+		regulator-name = "vcc5v0_usb_otg";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_dcin: regulator-vcc-dcin {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_dcin";
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vccio_sd: regulator-vccio-sd {
+		compatible = "regulator-gpio";
+		gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdmmc_vol_ctrl_h>;
+		regulator-name = "vccio_sd";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		states = <1800000 0x0>, <3300000 0x1>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vdd_arm: regulator-vdd-arm {
+		compatible = "pwm-regulator";
+		pwms = <&pwm3 0 5000 PWM_POLARITY_INVERTED>;
+		pwm-supply = <&vcc5v0_sys>;
+		regulator-name = "vdd_arm";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <746000>;
+		regulator-max-microvolt = <1201000>;
+		regulator-settling-time-up-us = <250>;
+	};
+
+	vdd_logic: regulator-vdd-logic {
+		compatible = "pwm-regulator";
+		pwms = <&pwm2 0 5000 PWM_POLARITY_INVERTED>;
+		pwm-supply = <&vcc5v0_sys>;
+		regulator-name = "vdd_logic";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <705000>;
+		regulator-max-microvolt = <1006000>;
+		regulator-settling-time-up-us = <250>;
+	};
+
+	rfkill {
+		compatible = "rfkill-gpio";
+		label = "rfkill-wlan";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_reg_on_h>;
+		radio-type = "wlan";
+		shutdown-gpios = <&gpio1 RK_PA6 GPIO_ACTIVE_HIGH>;
+	};
+
+	rfkill-bt {
+		compatible = "rfkill-gpio";
+		label = "rfkill-bt";
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_reg_on_h>;
+		radio-type = "bluetooth";
+		shutdown-gpios = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu1 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu2 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu3 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&gmac1 {
+	clock_in_out = "output";
+	phy-handle = <&rgmii_phy>;
+	phy-mode = "rgmii-id";
+	phy-supply = <&vcc_3v3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&rgmii_miim>, <&rgmii_tx_bus2>, <&rgmii_rx_bus2>,
+		    <&rgmii_rgmii_clk>, <&rgmii_rgmii_bus>;
+	status = "okay";
+};
+
+&gpu {
+	mali-supply = <&vdd_logic>;
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0m0_xfer>;
+	status = "okay";
+
+	hym8563: rtc@51 {
+		compatible = "haoyu,hym8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+		clock-output-names = "hym8563";
+		interrupt-parent = <&gpio4>;
+		interrupts = <RK_PA0 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtc_int_l>;
+		wakeup-source;
+	};
+};
+
+&mdio1 {
+	rgmii_phy: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&gmac1_rstn_l>;
+		reset-assert-us = <20000>;
+		reset-deassert-us = <100000>;
+		reset-gpios = <&gpio4 RK_PB5 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&pinctrl {
+	bluetooth {
+		bt_reg_on_h: bt-reg-on-h {
+			rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		bt_wake_host_h: bt-wake-host-h {
+			rockchip,pins = <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
+		host_wake_bt_h: host-wake-bt-h {
+			rockchip,pins = <3 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	ethernet {
+		gmac1_rstn_l: gmac1-rstn-l {
+			rockchip,pins = <4 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	leds {
+		g_led: g-led {
+			rockchip,pins = <3 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		r_led: r-led {
+			rockchip,pins = <3 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	rtc {
+		rtc_int_l: rtc-int-l {
+			rockchip,pins = <4 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	sdmmc {
+		sdmmc_vol_ctrl_h: sdmmc-vol-ctrl-h {
+			rockchip,pins = <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		sdmmc_pwren_l: sdmmc-pwren-l {
+			rockchip,pins = <4 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	usb {
+		usb20_host1_drv_h: usb20-host1-drv-h {
+			rockchip,pins = <4 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		usb20_host2_drv_h: usb20-host2-drv-h {
+			rockchip,pins = <4 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		usb20_otg0_drv_h: usb20-otg0-drv-h {
+			rockchip,pins = <1 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	wifi {
+		wifi_reg_on_h: wifi-reg-on-h {
+			rockchip,pins = <1 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		wifi_wake_host_h: wifi-wake-host-h {
+			rockchip,pins = <1 RK_PA7 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+	};
+};
+
+&pwm2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm2m0_pins>;
+	status = "okay";
+};
+
+&pwm3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm3m0_pins>;
+	status = "okay";
+};
+
+&saradc {
+	vref-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&sdhci {
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	no-sd;
+	no-sdio;
+	non-removable;
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&sdio0 {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	disable-wp;
+	keep-power-in-suspend;
+	no-mmc;
+	no-sd;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdio0_bus4>, <&sdio0_clk>, <&sdio0_cmd>, <&clkm1_32k_out>;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc3v3_sd>;
+	vqmmc-supply = <&vccio_sd>;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0m0_xfer>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2m1_xfer>, <&uart2m1_ctsn>, <&uart2m1_rtsn>;
+	uart-has-rtscts;
+	status = "okay";
+};
-- 
2.49.0


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[PATCH 5/6] dt-bindings: arm: rockchip: Add FriendlyElec NanoPi Zero2

[Jonas Karlman]

The NanoPi Zero2 is small single board computer developed by
FriendlyElec, based on the Rockchip RK3528A SoC.

Add devicetree binding documentation for the FriendlyElec NanoPi Zero2
board.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
 Documentation/devicetree/bindings/arm/rockchip.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index e955e3334e35..a84076841504 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -319,6 +319,11 @@ properties:
               - friendlyarm,nanopi-r6s
           - const: rockchip,rk3588s
 
+      - description: FriendlyElec NanoPi Zero2
+        items:
+          - const: friendlyarm,nanopi-zero2
+          - const: rockchip,rk3528
+
       - description: FriendlyElec NanoPC T6 series boards
         items:
           - enum:
-- 
2.49.0


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[PATCH 6/6] arm64: dts: rockchip: Add FriendlyElec NanoPi Zero2

[Jonas Karlman]

The NanoPi Zero2 is a small single board computer developed by
FriendlyElec, based on the Rockchip RK3528A SoC.

Add initial device tree for the FriendlyElec NanoPi Zero2 board.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
Schematics: https://wiki.friendlyelec.com/wiki/images/3/37/NanoPi_Zero2_2407_SCH.pdf
---
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../boot/dts/rockchip/rk3528-nanopi-zero2.dts | 341 ++++++++++++++++++
 2 files changed, 342 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index e86131b03692..8e95b5620af1 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -90,6 +90,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399pro-rock-pi-n10.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-armsom-sige1.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-nanopi-zero2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-radxa-e20c.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-rock-2a.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3528-rock-2f.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dts b/arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dts
new file mode 100644
index 000000000000..8bc5da9f24c3
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dts
@@ -0,0 +1,341 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pwm/pwm.h>
+#include "rk3528.dtsi"
+
+/ {
+	model = "FriendlyElec NanoPi Zero2";
+	compatible = "friendlyarm,nanopi-zero2", "rockchip,rk3528";
+
+	aliases {
+		ethernet0 = &gmac1;
+		i2c1 = &i2c1;
+		mmc0 = &sdhci;
+		mmc1 = &sdmmc;
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:1500000n8";
+	};
+
+	adc-keys-0 {
+		compatible = "adc-keys";
+		io-channels = <&saradc 0>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1800000>;
+		poll-interval = <100>;
+
+		button-maskrom {
+			label = "MASK";
+			linux,code = <KEY_SETUP>;
+			press-threshold-microvolt = <0>;
+		};
+	};
+
+	adc-keys-1 {
+		compatible = "adc-keys";
+		io-channels = <&saradc 1>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1800000>;
+		poll-interval = <100>;
+
+		button-recovery {
+			label = "RECOVERY";
+			linux,code = <KEY_VENDOR>;
+			press-threshold-microvolt = <0>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&led1>, <&led_sys>;
+
+		led-1 {
+			color = <LED_COLOR_ID_GREEN>;
+			default-state = "on";
+			function = LED_FUNCTION_STATUS;
+			gpios = <&gpio4 RK_PB1 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-on";
+		};
+
+		led-sys {
+			color = <LED_COLOR_ID_RED>;
+			default-state = "on";
+			function = LED_FUNCTION_HEARTBEAT;
+			gpios = <&gpio4 RK_PB0 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	vcc0v6_ddr: regulator-0v6-vcc-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc0v6_ddr";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <600000>;
+		regulator-max-microvolt = <600000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vdd_0v9: regulator-0v9-vdd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_0v9";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <900000>;
+		regulator-max-microvolt = <900000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_ddr: regulator-1v1-vcc-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_ddr";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1100000>;
+		regulator-max-microvolt = <1100000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc_1v8: regulator-1v8-vcc {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_1v8";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc_3v3>;
+	};
+
+	vcc_3v3: regulator-3v3-vcc {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vcc3v3_sd: regulator-3v3-vcc-sd {
+		compatible = "regulator-fixed";
+		gpios = <&gpio4 RK_PA1 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdmmc_pwren_l>;
+		regulator-name = "vcc3v3_sd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_3v3>;
+	};
+
+	vcc5v0_sys: regulator-5v0-vcc-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	usb2_host_5v: regulator-5v0-usb2-host {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio4 RK_PB5 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb20_host1_pwren>;
+		regulator-name = "usb2_host_5v";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vccio_sd: regulator-vccio-sd {
+		compatible = "regulator-gpio";
+		gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdmmc_vol_ctrl_h>;
+		regulator-name = "vccio_sd";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		states = <1800000 0x0>, <3300000 0x1>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vdd_arm: regulator-vdd-arm {
+		compatible = "pwm-regulator";
+		pwms = <&pwm1 0 5000 PWM_POLARITY_INVERTED>;
+		pwm-supply = <&vcc5v0_sys>;
+		regulator-name = "vdd_arm";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <746000>;
+		regulator-max-microvolt = <1201000>;
+		regulator-settling-time-up-us = <250>;
+	};
+
+	vdd_logic: regulator-vdd-logic {
+		compatible = "pwm-regulator";
+		pwms = <&pwm2 0 5000 PWM_POLARITY_INVERTED>;
+		pwm-supply = <&vcc5v0_sys>;
+		regulator-name = "vdd_logic";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <705000>;
+		regulator-max-microvolt = <1006000>;
+		regulator-settling-time-up-us = <250>;
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu1 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu2 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu3 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&gmac1 {
+	clock_in_out = "output";
+	phy-handle = <&rgmii_phy>;
+	phy-mode = "rgmii-id";
+	phy-supply = <&vcc_3v3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&rgmii_miim>, <&rgmii_tx_bus2>, <&rgmii_rx_bus2>,
+		    <&rgmii_rgmii_clk>, <&rgmii_rgmii_bus>;
+	status = "okay";
+};
+
+&gpu {
+	mali-supply = <&vdd_logic>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1m0_xfer>;
+	status = "okay";
+
+	hym8563: rtc@51 {
+		compatible = "haoyu,hym8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+		clock-output-names = "hym8563";
+		interrupt-parent = <&gpio4>;
+		interrupts = <RK_PC1 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtc_int_l>;
+		wakeup-source;
+	};
+};
+
+&mdio1 {
+	rgmii_phy: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&gmac1_rstn_l>;
+		reset-assert-us = <20000>;
+		reset-deassert-us = <100000>;
+		reset-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&pinctrl {
+	ethernet {
+		gmac1_rstn_l: gmac1-rstn-l {
+			rockchip,pins = <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	leds {
+		led1: led1 {
+			rockchip,pins = <4 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		led_sys: led-sys {
+			rockchip,pins = <4 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	rtc {
+		rtc_int_l: rtc-int-l {
+			rockchip,pins = <4 RK_PC1 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	sdmmc {
+		sdmmc_vol_ctrl_h: sdmmc-vol-ctrl-h {
+			rockchip,pins = <4 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		sdmmc_pwren_l: sdmmc-pwren-l {
+			rockchip,pins = <4 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	usb {
+		usb20_host1_pwren: usb20-host1-pwren {
+			rockchip,pins = <4 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+&pwm1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm1m0_pins>;
+	status = "okay";
+};
+
+&pwm2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm2m0_pins>;
+	status = "okay";
+};
+
+&saradc {
+	vref-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&sdhci {
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	no-sd;
+	no-sdio;
+	non-removable;
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc3v3_sd>;
+	vqmmc-supply = <&vccio_sd>;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0m0_xfer>;
+	status = "okay";
+};
-- 
2.49.0


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Re: [PATCH 6/6] arm64: dts: rockchip: Add FriendlyElec NanoPi Zero2

[Yao Zi]

On Tue, Jul 08, 2025 at 10:48:56PM +0000, Jonas Karlman wrote:
> The NanoPi Zero2 is a small single board computer developed by
> FriendlyElec, based on the Rockchip RK3528A SoC.
> 
> Add initial device tree for the FriendlyElec NanoPi Zero2 board.

Tested on my NanoPi Zero 2 board, RTC could be read out, and Ethernet
and SDMMC reaches a reasonable speed.

Tested-by: Yao Zi <ziyao@disroot.org>

> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> ---
> Schematics: https://wiki.friendlyelec.com/wiki/images/3/37/NanoPi_Zero2_2407_SCH.pdf
> ---
>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>  .../boot/dts/rockchip/rk3528-nanopi-zero2.dts | 341 ++++++++++++++++++
>  2 files changed, 342 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dts

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Re: [PATCH 2/6] arm64: dts: rockchip: Add Radxa ROCK 2A/2F

[Yao Zi]

On Tue, Jul 08, 2025 at 10:48:52PM +0000, Jonas Karlman wrote:
> The ROCK 2A and ROCK 2F is a high-performance single board computer
> developed by Radxa, based on the Rockchip RK3528A SoC.
> 
> Add initial device tree for the Radxa ROCK 2A and ROCK 2F boards.
> 
> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> ---
> Schematics:
> - https://dl.radxa.com/rock2/2a/v1.2/radxa_rock_2a_v1.2_schematic.pdf
> - https://dl.radxa.com/rock2/2f/radxa_rock2f_v1.01_schematic.pdf
> ---
>  arch/arm64/boot/dts/rockchip/Makefile         |   2 +
>  .../boot/dts/rockchip/rk3528-rock-2.dtsi      | 292 ++++++++++++++++++
>  .../boot/dts/rockchip/rk3528-rock-2a.dts      |  82 +++++
>  .../boot/dts/rockchip/rk3528-rock-2f.dts      |  10 +
>  4 files changed, 386 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts
 
While testing the patch on my Rock 2A board, I noticed one of my SDcard
that works perfectly on Radxa E20C and NanoPi Zero 2 cannot be correctly
read out under UHS-125-SDR mode,

	# dd if=/dev/mmcblk1 of=/dev/null bs=4M count=4
	[   18.616828] mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
	[   19.193315] mmc1: Skipping voltage switch
	[   19.202046] mmc1: tried to HW reset card, got error -110
	[   19.213312] mmcblk1: recovery failed!
	[   19.213709] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 0
	[   19.225201] mmcblk1: recovery failed!
	[   19.225530] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
	[   19.226283] Buffer I/O error on dev mmcblk1, logical block 0, async page read
	dd: /dev/mmcblk1: I/O error

which could be reproduced stably.

the SDMMC controller issued interesting messages during the tuning
process,

	[    0.665246] mmc_host mmc1: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
	[    0.851940] dwmmc_rockchip ffc30000.mmc: All phases work, using default phase 90.

but actually it doesn't work with phase = 90. If the frequency is
limited to 100MHz with max-frequency = <100000000> instead of the
default 150MHz, tuning results in a very different phase,

	[    0.665483] mmc_host mmc1: Bus speed (slot 0) = 99600000Hz (slot req 100000000Hz, actual 99600000HZ div = 0)
	[    1.166340] dwmmc_rockchip ffc30000.mmc: Successfully tuned phase to 141

and the card works, too. If I set rockchip,default-sample-phase to 141
in devicetree, the card could work at full 150MHz as well.

I think there's something wrong with the tuning process, or the board's
design cannot always run reliably at 150MHz.

Could you reproduce similar failures on Radxa 2A? If so, it may be
necessary to lower the SDMMC's maximum frequency for the board.

Regards,
Yao Zi

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Re: [PATCH 4/6] arm64: dts: rockchip: Add ArmSoM Sige1

[Chukun Pan]

Hi,

> +	vcc5v0_usb1_host: regulator-5v0-vcc-usb1-host {
> +		compatible = "regulator-fixed";
> ...
> +		regulator-always-on;
> +		regulator-boot-on;
> ...
> +	vcc5v0_usb2_host: regulator-5v0-vcc-usb2-host {
> +		regulator-always-on;
> +		regulator-boot-on;
> ...

I think these two regulators do not need boot-on?

> +	rfkill {
> +		compatible = "rfkill-gpio";
> +		label = "rfkill-wlan";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&wifi_reg_on_h>;
> +		radio-type = "wlan";
> +		shutdown-gpios = <&gpio1 RK_PA6 GPIO_ACTIVE_HIGH>;
> +	};

Why not use mmc-pwrseq instead of rfkill?

> +	rfkill-bt {
> +		compatible = "rfkill-gpio";
> +		label = "rfkill-bt";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&bt_reg_on_h>;
> +		radio-type = "bluetooth";
> +		shutdown-gpios = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>;
> +	};

Why not use shutdown-gpios of bcm43438-bt?

> +&i2c0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c0m0_xfer>;
> +	status = "okay";
> +
> +	hym8563: rtc@51 {
> +		compatible = "haoyu,hym8563";
> +		reg = <0x51>;
> +		#clock-cells = <0>;
> +		clock-output-names = "hym8563";

CLKOUT pin is not connected.

> +&sdio0 {
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	cap-sdio-irq;
> +	disable-wp;
> +	keep-power-in-suspend;
> +	no-mmc;
> +	no-sd;
> +	non-removable;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&sdio0_bus4>, <&sdio0_clk>, <&sdio0_cmd>, <&clkm1_32k_out>;

I recommend using clkm1_32k_out at the sdio-pwrseq node.

> +	sd-uhs-sdr104;
> +	vmmc-supply = <&vcc_3v3>;
> +	vqmmc-supply = <&vcc_1v8>;
> +	status = "okay";

Maybe `brcm,bcm4329-fmac` nodes can be added here?

> +&uart2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart2m1_xfer>, <&uart2m1_ctsn>, <&uart2m1_rtsn>;
> +	uart-has-rtscts;
> +	status = "okay";

You can add `brcm,bcm43438-bt` nodes here:

	bluetooth {
		compatible = "brcm,bcm43438-bt";
		device-wakeup-gpios = <&gpio3 RK_PC3 GPIO_ACTIVE_HIGH>;
		host-wakeup-gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>;
		shutdown-gpios = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>;
		...
	};

Thanks,
Chukun

--
2.25.1


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Re: [PATCH 2/6] arm64: dts: rockchip: Add Radxa ROCK 2A/2F

[Jonas Karlman]

Hi,

On 7/9/2025 6:25 AM, Yao Zi wrote:
> On Tue, Jul 08, 2025 at 10:48:52PM +0000, Jonas Karlman wrote:
>> The ROCK 2A and ROCK 2F is a high-performance single board computer
>> developed by Radxa, based on the Rockchip RK3528A SoC.
>>
>> Add initial device tree for the Radxa ROCK 2A and ROCK 2F boards.
>>
>> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
>> ---
>> Schematics:
>> - https://dl.radxa.com/rock2/2a/v1.2/radxa_rock_2a_v1.2_schematic.pdf
>> - https://dl.radxa.com/rock2/2f/radxa_rock2f_v1.01_schematic.pdf
>> ---
>>  arch/arm64/boot/dts/rockchip/Makefile         |   2 +
>>  .../boot/dts/rockchip/rk3528-rock-2.dtsi      | 292 ++++++++++++++++++
>>  .../boot/dts/rockchip/rk3528-rock-2a.dts      |  82 +++++
>>  .../boot/dts/rockchip/rk3528-rock-2f.dts      |  10 +
>>  4 files changed, 386 insertions(+)
>>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
>>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
>>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts
>  
> While testing the patch on my Rock 2A board, I noticed one of my SDcard
> that works perfectly on Radxa E20C and NanoPi Zero 2 cannot be correctly
> read out under UHS-125-SDR mode,
> 
> 	# dd if=/dev/mmcblk1 of=/dev/null bs=4M count=4
> 	[   18.616828] mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
> 	[   19.193315] mmc1: Skipping voltage switch
> 	[   19.202046] mmc1: tried to HW reset card, got error -110
> 	[   19.213312] mmcblk1: recovery failed!
> 	[   19.213709] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 0
> 	[   19.225201] mmcblk1: recovery failed!
> 	[   19.225530] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
> 	[   19.226283] Buffer I/O error on dev mmcblk1, logical block 0, async page read
> 	dd: /dev/mmcblk1: I/O error
> 
> which could be reproduced stably.
> 
> the SDMMC controller issued interesting messages during the tuning
> process,
> 
> 	[    0.665246] mmc_host mmc1: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
> 	[    0.851940] dwmmc_rockchip ffc30000.mmc: All phases work, using default phase 90.
> 
> but actually it doesn't work with phase = 90. If the frequency is
> limited to 100MHz with max-frequency = <100000000> instead of the
> default 150MHz, tuning results in a very different phase,
> 
> 	[    0.665483] mmc_host mmc1: Bus speed (slot 0) = 99600000Hz (slot req 100000000Hz, actual 99600000HZ div = 0)
> 	[    1.166340] dwmmc_rockchip ffc30000.mmc: Successfully tuned phase to 141
> 
> and the card works, too. If I set rockchip,default-sample-phase to 141
> in devicetree, the card could work at full 150MHz as well.
> 
> I think there's something wrong with the tuning process, or the board's
> design cannot always run reliably at 150MHz.
> 
> Could you reproduce similar failures on Radxa 2A? If so, it may be
> necessary to lower the SDMMC's maximum frequency for the board.

I have not been able to reproduce this issue on any of my ROCK 2A or 2F
boards, my boards seem to tune phase to around 250-265 for the sd-cards
I tested.

Could you try with something like this:

diff --git a/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi b/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
index fc23c51836b15..a82791db55699 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
@@ -285,6 +285,10 @@
 	status = "okay";
 };
 
+&sdmmc_clk {
+	rockchip,pins = <2 RK_PA5 1 &pcfg_pull_up_drv_level_3>;
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0m0_xfer>;


Changing clk drive strength seem to be something that has been done in
Radxa vendor kernel [1], could be something that we can include if it
fixes your issue.

The kernel I tested was built from [2].

[1] https://github.com/radxa/kernel/commit/e9b33cbc97a902560d3f3b43b4d36a1a0ac68a50
[2] https://github.com/Kwiboo/linux-rockchip/commits/next-20250708-rk3528-boards/

Regards,
Jonas

> 
> Regards,
> Yao Zi


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Re: [PATCH 4/6] arm64: dts: rockchip: Add ArmSoM Sige1

[Jonas Karlman]

Hi,

On 7/9/2025 9:00 AM, Chukun Pan wrote:
> Hi,
> 
>> +	vcc5v0_usb1_host: regulator-5v0-vcc-usb1-host {
>> +		compatible = "regulator-fixed";
>> ...
>> +		regulator-always-on;
>> +		regulator-boot-on;
>> ...
>> +	vcc5v0_usb2_host: regulator-5v0-vcc-usb2-host {
>> +		regulator-always-on;
>> +		regulator-boot-on;
>> ...
> 
> I think these two regulators do not need boot-on?

Agree, will remove the boot-on in v2.

> 
>> +	rfkill {
>> +		compatible = "rfkill-gpio";
>> +		label = "rfkill-wlan";
>> +		pinctrl-names = "default";
>> +		pinctrl-0 = <&wifi_reg_on_h>;
>> +		radio-type = "wlan";
>> +		shutdown-gpios = <&gpio1 RK_PA6 GPIO_ACTIVE_HIGH>;
>> +	};
> 
> Why not use mmc-pwrseq instead of rfkill?

Not sure, have changed to use mmc-pwrseq in v2.

> 
>> +	rfkill-bt {
>> +		compatible = "rfkill-gpio";
>> +		label = "rfkill-bt";
>> +		pinctrl-names = "default";
>> +		pinctrl-0 = <&bt_reg_on_h>;
>> +		radio-type = "bluetooth";
>> +		shutdown-gpios = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>;
>> +	};
> 
> Why not use shutdown-gpios of bcm43438-bt?

Sure, will use that in v2.

> 
>> +&i2c0 {
>> +	pinctrl-names = "default";
>> +	pinctrl-0 = <&i2c0m0_xfer>;
>> +	status = "okay";
>> +
>> +	hym8563: rtc@51 {
>> +		compatible = "haoyu,hym8563";
>> +		reg = <0x51>;
>> +		#clock-cells = <0>;
>> +		clock-output-names = "hym8563";
> 
> CLKOUT pin is not connected.

Thanks, will remove the clock-output-names for the Sige1 and the NanoPi
Zero2 in v2, #clock-cells seem to be required by the dt-bindings.

> 
>> +&sdio0 {
>> +	bus-width = <4>;
>> +	cap-sd-highspeed;
>> +	cap-sdio-irq;
>> +	disable-wp;
>> +	keep-power-in-suspend;
>> +	no-mmc;
>> +	no-sd;
>> +	non-removable;
>> +	pinctrl-names = "default";
>> +	pinctrl-0 = <&sdio0_bus4>, <&sdio0_clk>, <&sdio0_cmd>, <&clkm1_32k_out>;
> 
> I recommend using clkm1_32k_out at the sdio-pwrseq node.

Will do so in v2.

> 
>> +	sd-uhs-sdr104;
>> +	vmmc-supply = <&vcc_3v3>;
>> +	vqmmc-supply = <&vcc_1v8>;
>> +	status = "okay";
> 
> Maybe `brcm,bcm4329-fmac` nodes can be added here?

Will add to in v2.

> 
>> +&uart2 {
>> +	pinctrl-names = "default";
>> +	pinctrl-0 = <&uart2m1_xfer>, <&uart2m1_ctsn>, <&uart2m1_rtsn>;
>> +	uart-has-rtscts;
>> +	status = "okay";
> 
> You can add `brcm,bcm43438-bt` nodes here:
> 
> 	bluetooth {
> 		compatible = "brcm,bcm43438-bt";
> 		device-wakeup-gpios = <&gpio3 RK_PC3 GPIO_ACTIVE_HIGH>;
> 		host-wakeup-gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>;
> 		shutdown-gpios = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>;
> 		...
> 	};

Will use something similar in v2.

See [1] for fixups I am testing for v2.

[1] https://github.com/Kwiboo/linux-rockchip/commits/next-20250708-rk3528-boards/

Regards,
Jonas

> 
> Thanks,
> Chukun
> 
> --
> 2.25.1
> 


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Re: [PATCH 2/6] arm64: dts: rockchip: Add Radxa ROCK 2A/2F

[Rob Herring (Arm)]

On Wed, 09 Jul 2025 04:25:34 +0000, Yao Zi wrote:
> On Tue, Jul 08, 2025 at 10:48:52PM +0000, Jonas Karlman wrote:
> > The ROCK 2A and ROCK 2F is a high-performance single board computer
> > developed by Radxa, based on the Rockchip RK3528A SoC.
> >
> > Add initial device tree for the Radxa ROCK 2A and ROCK 2F boards.
> >
> > Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> > ---
> > Schematics:
> > - https://dl.radxa.com/rock2/2a/v1.2/radxa_rock_2a_v1.2_schematic.pdf
> > - https://dl.radxa.com/rock2/2f/radxa_rock2f_v1.01_schematic.pdf
> > ---
> >  arch/arm64/boot/dts/rockchip/Makefile         |   2 +
> >  .../boot/dts/rockchip/rk3528-rock-2.dtsi      | 292 ++++++++++++++++++
> >  .../boot/dts/rockchip/rk3528-rock-2a.dts      |  82 +++++
> >  .../boot/dts/rockchip/rk3528-rock-2f.dts      |  10 +
> >  4 files changed, 386 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
> >  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
> >  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts
> 
> While testing the patch on my Rock 2A board, I noticed one of my SDcard
> that works perfectly on Radxa E20C and NanoPi Zero 2 cannot be correctly
> read out under UHS-125-SDR mode,
> 
> 	# dd if=/dev/mmcblk1 of=/dev/null bs=4M count=4
> 	[   18.616828] mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
> 	[   19.193315] mmc1: Skipping voltage switch
> 	[   19.202046] mmc1: tried to HW reset card, got error -110
> 	[   19.213312] mmcblk1: recovery failed!
> 	[   19.213709] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 0
> 	[   19.225201] mmcblk1: recovery failed!
> 	[   19.225530] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
> 	[   19.226283] Buffer I/O error on dev mmcblk1, logical block 0, async page read
> 	dd: /dev/mmcblk1: I/O error
> 
> which could be reproduced stably.
> 
> the SDMMC controller issued interesting messages during the tuning
> process,
> 
> 	[    0.665246] mmc_host mmc1: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
> 	[    0.851940] dwmmc_rockchip ffc30000.mmc: All phases work, using default phase 90.
> 
> but actually it doesn't work with phase = 90. If the frequency is
> limited to 100MHz with max-frequency = <100000000> instead of the
> default 150MHz, tuning results in a very different phase,
> 
> 	[    0.665483] mmc_host mmc1: Bus speed (slot 0) = 99600000Hz (slot req 100000000Hz, actual 99600000HZ div = 0)
> 	[    1.166340] dwmmc_rockchip ffc30000.mmc: Successfully tuned phase to 141
> 
> and the card works, too. If I set rockchip,default-sample-phase to 141
> in devicetree, the card could work at full 150MHz as well.
> 
> I think there's something wrong with the tuning process, or the board's
> design cannot always run reliably at 150MHz.
> 
> Could you reproduce similar failures on Radxa 2A? If so, it may be
> necessary to lower the SDMMC's maximum frequency for the board.
> 
> Regards,
> Yao Zi
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


This patch series was applied (using b4) to base:
 Base: attempting to guess base-commit...
 Base: tags/v6.16-rc1-34-g7f9509791507 (exact match)

If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)

New warnings running 'make CHECK_DTBS=y for arch/arm64/boot/dts/rockchip/' for aG3vPsUd-FPkhi-S@pie.lan:

arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dtb: /soc/power-management@ff600000: failed to match any schema with compatible: ['rockchip,rk3528-pmu', 'syscon', 'simple-mfd']
arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dtb: /soc/power-management@ff600000/power-controller: failed to match any schema with compatible: ['rockchip,rk3528-power-controller']
arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dtb: gpu@ff700000 (rockchip,rk3528-mali): compatible: 'oneOf' conditional failed, one must be fixed:
	['rockchip,rk3528-mali', 'arm,mali-450'] is too short
	'allwinner,sun8i-a23-mali' was expected
	'rockchip,rk3528-mali' is not one of ['allwinner,sun4i-a10-mali', 'allwinner,sun7i-a20-mali', 'allwinner,sun8i-h3-mali', 'allwinner,sun8i-r40-mali', 'allwinner,sun50i-a64-mali', 'rockchip,rk3036-mali', 'rockchip,rk3066-mali', 'rockchip,rk3128-mali', 'rockchip,rk3188-mali', 'rockchip,rk3228-mali', 'samsung,exynos4210-mali', 'st,stih410-mali', 'stericsson,db8500-mali', 'xlnx,zynqmp-mali']
	'rockchip,rk3528-mali' is not one of ['allwinner,sun50i-h5-mali', 'amlogic,meson8-mali', 'amlogic,meson8b-mali', 'amlogic,meson-gxbb-mali', 'amlogic,meson-gxl-mali', 'hisilicon,hi6220-mali', 'mediatek,mt7623-mali', 'rockchip,rk3328-mali']
	'allwinner,sun7i-a20-mali' was expected
	'arm,mali-400' was expected
	from schema $id: http://devicetree.org/schemas/gpu/arm,mali-utgard.yaml#
arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dtb: /soc/gpu@ff700000: failed to match any schema with compatible: ['rockchip,rk3528-mali', 'arm,mali-450']
arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dtb: /soc/power-management@ff600000: failed to match any schema with compatible: ['rockchip,rk3528-pmu', 'syscon', 'simple-mfd']
arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dtb: /soc/power-management@ff600000/power-controller: failed to match any schema with compatible: ['rockchip,rk3528-power-controller']
arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dtb: gpu@ff700000 (rockchip,rk3528-mali): compatible: 'oneOf' conditional failed, one must be fixed:
	['rockchip,rk3528-mali', 'arm,mali-450'] is too short
	'allwinner,sun8i-a23-mali' was expected
	'rockchip,rk3528-mali' is not one of ['allwinner,sun4i-a10-mali', 'allwinner,sun7i-a20-mali', 'allwinner,sun8i-h3-mali', 'allwinner,sun8i-r40-mali', 'allwinner,sun50i-a64-mali', 'rockchip,rk3036-mali', 'rockchip,rk3066-mali', 'rockchip,rk3128-mali', 'rockchip,rk3188-mali', 'rockchip,rk3228-mali', 'samsung,exynos4210-mali', 'st,stih410-mali', 'stericsson,db8500-mali', 'xlnx,zynqmp-mali']
	'rockchip,rk3528-mali' is not one of ['allwinner,sun50i-h5-mali', 'amlogic,meson8-mali', 'amlogic,meson8b-mali', 'amlogic,meson-gxbb-mali', 'amlogic,meson-gxl-mali', 'hisilicon,hi6220-mali', 'mediatek,mt7623-mali', 'rockchip,rk3328-mali']
	'allwinner,sun7i-a20-mali' was expected
	'arm,mali-400' was expected
	from schema $id: http://devicetree.org/schemas/gpu/arm,mali-utgard.yaml#
arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dtb: /soc/gpu@ff700000: failed to match any schema with compatible: ['rockchip,rk3528-mali', 'arm,mali-450']
arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dtb: /soc/power-management@ff600000: failed to match any schema with compatible: ['rockchip,rk3528-pmu', 'syscon', 'simple-mfd']
arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dtb: /soc/power-management@ff600000/power-controller: failed to match any schema with compatible: ['rockchip,rk3528-power-controller']
arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dtb: gpu@ff700000 (rockchip,rk3528-mali): compatible: 'oneOf' conditional failed, one must be fixed:
	['rockchip,rk3528-mali', 'arm,mali-450'] is too short
	'allwinner,sun8i-a23-mali' was expected
	'rockchip,rk3528-mali' is not one of ['allwinner,sun4i-a10-mali', 'allwinner,sun7i-a20-mali', 'allwinner,sun8i-h3-mali', 'allwinner,sun8i-r40-mali', 'allwinner,sun50i-a64-mali', 'rockchip,rk3036-mali', 'rockchip,rk3066-mali', 'rockchip,rk3128-mali', 'rockchip,rk3188-mali', 'rockchip,rk3228-mali', 'samsung,exynos4210-mali', 'st,stih410-mali', 'stericsson,db8500-mali', 'xlnx,zynqmp-mali']
	'rockchip,rk3528-mali' is not one of ['allwinner,sun50i-h5-mali', 'amlogic,meson8-mali', 'amlogic,meson8b-mali', 'amlogic,meson-gxbb-mali', 'amlogic,meson-gxl-mali', 'hisilicon,hi6220-mali', 'mediatek,mt7623-mali', 'rockchip,rk3328-mali']
	'allwinner,sun7i-a20-mali' was expected
	'arm,mali-400' was expected
	from schema $id: http://devicetree.org/schemas/gpu/arm,mali-utgard.yaml#
arch/arm64/boot/dts/rockchip/rk3528-nanopi-zero2.dtb: /soc/gpu@ff700000: failed to match any schema with compatible: ['rockchip,rk3528-mali', 'arm,mali-450']
arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dtb: /soc/power-management@ff600000: failed to match any schema with compatible: ['rockchip,rk3528-pmu', 'syscon', 'simple-mfd']
arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dtb: /soc/power-management@ff600000/power-controller: failed to match any schema with compatible: ['rockchip,rk3528-power-controller']
arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dtb: gpu@ff700000 (rockchip,rk3528-mali): compatible: 'oneOf' conditional failed, one must be fixed:
	['rockchip,rk3528-mali', 'arm,mali-450'] is too short
	'allwinner,sun8i-a23-mali' was expected
	'rockchip,rk3528-mali' is not one of ['allwinner,sun4i-a10-mali', 'allwinner,sun7i-a20-mali', 'allwinner,sun8i-h3-mali', 'allwinner,sun8i-r40-mali', 'allwinner,sun50i-a64-mali', 'rockchip,rk3036-mali', 'rockchip,rk3066-mali', 'rockchip,rk3128-mali', 'rockchip,rk3188-mali', 'rockchip,rk3228-mali', 'samsung,exynos4210-mali', 'st,stih410-mali', 'stericsson,db8500-mali', 'xlnx,zynqmp-mali']
	'rockchip,rk3528-mali' is not one of ['allwinner,sun50i-h5-mali', 'amlogic,meson8-mali', 'amlogic,meson8b-mali', 'amlogic,meson-gxbb-mali', 'amlogic,meson-gxl-mali', 'hisilicon,hi6220-mali', 'mediatek,mt7623-mali', 'rockchip,rk3328-mali']
	'allwinner,sun7i-a20-mali' was expected
	'arm,mali-400' was expected
	from schema $id: http://devicetree.org/schemas/gpu/arm,mali-utgard.yaml#
arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dtb: /soc/gpu@ff700000: failed to match any schema with compatible: ['rockchip,rk3528-mali', 'arm,mali-450']






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Re: [PATCH 2/6] arm64: dts: rockchip: Add Radxa ROCK 2A/2F

[Yao Zi]

On Thu, Jul 10, 2025 at 01:56:02AM +0200, Jonas Karlman wrote:
> Hi,
> 
> On 7/9/2025 6:25 AM, Yao Zi wrote:
> > On Tue, Jul 08, 2025 at 10:48:52PM +0000, Jonas Karlman wrote:
> >> The ROCK 2A and ROCK 2F is a high-performance single board computer
> >> developed by Radxa, based on the Rockchip RK3528A SoC.
> >>
> >> Add initial device tree for the Radxa ROCK 2A and ROCK 2F boards.
> >>
> >> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> >> ---
> >> Schematics:
> >> - https://dl.radxa.com/rock2/2a/v1.2/radxa_rock_2a_v1.2_schematic.pdf
> >> - https://dl.radxa.com/rock2/2f/radxa_rock2f_v1.01_schematic.pdf
> >> ---
> >>  arch/arm64/boot/dts/rockchip/Makefile         |   2 +
> >>  .../boot/dts/rockchip/rk3528-rock-2.dtsi      | 292 ++++++++++++++++++
> >>  .../boot/dts/rockchip/rk3528-rock-2a.dts      |  82 +++++
> >>  .../boot/dts/rockchip/rk3528-rock-2f.dts      |  10 +
> >>  4 files changed, 386 insertions(+)
> >>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
> >>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
> >>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts
> >  
> > While testing the patch on my Rock 2A board, I noticed one of my SDcard
> > that works perfectly on Radxa E20C and NanoPi Zero 2 cannot be correctly
> > read out under UHS-125-SDR mode,
> > 
> > 	# dd if=/dev/mmcblk1 of=/dev/null bs=4M count=4
> > 	[   18.616828] mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
> > 	[   19.193315] mmc1: Skipping voltage switch
> > 	[   19.202046] mmc1: tried to HW reset card, got error -110
> > 	[   19.213312] mmcblk1: recovery failed!
> > 	[   19.213709] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 0
> > 	[   19.225201] mmcblk1: recovery failed!
> > 	[   19.225530] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
> > 	[   19.226283] Buffer I/O error on dev mmcblk1, logical block 0, async page read
> > 	dd: /dev/mmcblk1: I/O error
> > 
> > which could be reproduced stably.
> > 
> > the SDMMC controller issued interesting messages during the tuning
> > process,
> > 
> > 	[    0.665246] mmc_host mmc1: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
> > 	[    0.851940] dwmmc_rockchip ffc30000.mmc: All phases work, using default phase 90.
> > 
> > but actually it doesn't work with phase = 90. If the frequency is
> > limited to 100MHz with max-frequency = <100000000> instead of the
> > default 150MHz, tuning results in a very different phase,
> > 
> > 	[    0.665483] mmc_host mmc1: Bus speed (slot 0) = 99600000Hz (slot req 100000000Hz, actual 99600000HZ div = 0)
> > 	[    1.166340] dwmmc_rockchip ffc30000.mmc: Successfully tuned phase to 141
> > 
> > and the card works, too. If I set rockchip,default-sample-phase to 141
> > in devicetree, the card could work at full 150MHz as well.
> > 
> > I think there's something wrong with the tuning process, or the board's
> > design cannot always run reliably at 150MHz.
> > 
> > Could you reproduce similar failures on Radxa 2A? If so, it may be
> > necessary to lower the SDMMC's maximum frequency for the board.
> 
> I have not been able to reproduce this issue on any of my ROCK 2A or 2F
> boards, my boards seem to tune phase to around 250-265 for the sd-cards
> I tested.
> 
> Could you try with something like this:
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi b/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
> index fc23c51836b15..a82791db55699 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
> @@ -285,6 +285,10 @@
>  	status = "okay";
>  };
>  
> +&sdmmc_clk {
> +	rockchip,pins = <2 RK_PA5 1 &pcfg_pull_up_drv_level_3>;
> +};
> +
>  &uart0 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&uart0m0_xfer>;
> 
> 
> Changing clk drive strength seem to be something that has been done in
> Radxa vendor kernel [1], could be something that we can include if it
> fixes your issue.

This seems to improve the situation a little, but doesn't solve the
issue. Among more than ten times of testing, the tuning process only
worked twice.

> The kernel I tested was built from [2].

I've tried this branch as well, but things don't improve.

Do you consider lower the clock-frequency acceptable?

> [1] https://github.com/radxa/kernel/commit/e9b33cbc97a902560d3f3b43b4d36a1a0ac68a50
> [2] https://github.com/Kwiboo/linux-rockchip/commits/next-20250708-rk3528-boards/
> 
> Regards,
> Jonas
> 
> > 
> > Regards,
> > Yao Zi
> 

Regards,
Yao Zi

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Re: [PATCH 2/6] arm64: dts: rockchip: Add Radxa ROCK 2A/2F

[Jonas Karlman]

On 7/10/2025 6:41 PM, Yao Zi wrote:
> On Thu, Jul 10, 2025 at 01:56:02AM +0200, Jonas Karlman wrote:
>> Hi,
>>
>> On 7/9/2025 6:25 AM, Yao Zi wrote:
>>> On Tue, Jul 08, 2025 at 10:48:52PM +0000, Jonas Karlman wrote:
>>>> The ROCK 2A and ROCK 2F is a high-performance single board computer
>>>> developed by Radxa, based on the Rockchip RK3528A SoC.
>>>>
>>>> Add initial device tree for the Radxa ROCK 2A and ROCK 2F boards.
>>>>
>>>> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
>>>> ---
>>>> Schematics:
>>>> - https://dl.radxa.com/rock2/2a/v1.2/radxa_rock_2a_v1.2_schematic.pdf
>>>> - https://dl.radxa.com/rock2/2f/radxa_rock2f_v1.01_schematic.pdf
>>>> ---
>>>>  arch/arm64/boot/dts/rockchip/Makefile         |   2 +
>>>>  .../boot/dts/rockchip/rk3528-rock-2.dtsi      | 292 ++++++++++++++++++
>>>>  .../boot/dts/rockchip/rk3528-rock-2a.dts      |  82 +++++
>>>>  .../boot/dts/rockchip/rk3528-rock-2f.dts      |  10 +
>>>>  4 files changed, 386 insertions(+)
>>>>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
>>>>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2a.dts
>>>>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3528-rock-2f.dts
>>>  
>>> While testing the patch on my Rock 2A board, I noticed one of my SDcard
>>> that works perfectly on Radxa E20C and NanoPi Zero 2 cannot be correctly
>>> read out under UHS-125-SDR mode,
>>>
>>> 	# dd if=/dev/mmcblk1 of=/dev/null bs=4M count=4
>>> 	[   18.616828] mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
>>> 	[   19.193315] mmc1: Skipping voltage switch
>>> 	[   19.202046] mmc1: tried to HW reset card, got error -110
>>> 	[   19.213312] mmcblk1: recovery failed!
>>> 	[   19.213709] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 256 prio class 0
>>> 	[   19.225201] mmcblk1: recovery failed!
>>> 	[   19.225530] I/O error, dev mmcblk1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
>>> 	[   19.226283] Buffer I/O error on dev mmcblk1, logical block 0, async page read
>>> 	dd: /dev/mmcblk1: I/O error
>>>
>>> which could be reproduced stably.
>>>
>>> the SDMMC controller issued interesting messages during the tuning
>>> process,
>>>
>>> 	[    0.665246] mmc_host mmc1: Bus speed (slot 0) = 148500000Hz (slot req 150000000Hz, actual 148500000HZ div = 0)
>>> 	[    0.851940] dwmmc_rockchip ffc30000.mmc: All phases work, using default phase 90.
>>>
>>> but actually it doesn't work with phase = 90. If the frequency is
>>> limited to 100MHz with max-frequency = <100000000> instead of the
>>> default 150MHz, tuning results in a very different phase,
>>>
>>> 	[    0.665483] mmc_host mmc1: Bus speed (slot 0) = 99600000Hz (slot req 100000000Hz, actual 99600000HZ div = 0)
>>> 	[    1.166340] dwmmc_rockchip ffc30000.mmc: Successfully tuned phase to 141
>>>
>>> and the card works, too. If I set rockchip,default-sample-phase to 141
>>> in devicetree, the card could work at full 150MHz as well.
>>>
>>> I think there's something wrong with the tuning process, or the board's
>>> design cannot always run reliably at 150MHz.
>>>
>>> Could you reproduce similar failures on Radxa 2A? If so, it may be
>>> necessary to lower the SDMMC's maximum frequency for the board.
>>
>> I have not been able to reproduce this issue on any of my ROCK 2A or 2F
>> boards, my boards seem to tune phase to around 250-265 for the sd-cards
>> I tested.
>>
>> Could you try with something like this:
>>
>> diff --git a/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi b/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
>> index fc23c51836b15..a82791db55699 100644
>> --- a/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
>> +++ b/arch/arm64/boot/dts/rockchip/rk3528-rock-2.dtsi
>> @@ -285,6 +285,10 @@
>>  	status = "okay";
>>  };
>>  
>> +&sdmmc_clk {
>> +	rockchip,pins = <2 RK_PA5 1 &pcfg_pull_up_drv_level_3>;
>> +};
>> +
>>  &uart0 {
>>  	pinctrl-names = "default";
>>  	pinctrl-0 = <&uart0m0_xfer>;
>>
>>
>> Changing clk drive strength seem to be something that has been done in
>> Radxa vendor kernel [1], could be something that we can include if it
>> fixes your issue.
> 
> This seems to improve the situation a little, but doesn't solve the
> issue. Among more than ten times of testing, the tuning process only
> worked twice.
> 
>> The kernel I tested was built from [2].
> 
> I've tried this branch as well, but things don't improve.
> 
> Do you consider lower the clock-frequency acceptable?

Sure, I will include the max-frequency = <100000000> in a v2 shortly.

Regards,
Jonas

> 
>> [1] https://github.com/radxa/kernel/commit/e9b33cbc97a902560d3f3b43b4d36a1a0ac68a50
>> [2] https://github.com/Kwiboo/linux-rockchip/commits/next-20250708-rk3528-boards/
>>
>> Regards,
>> Jonas
>>
>>>
>>> Regards,
>>> Yao Zi
>>
> 
> Regards,
> Yao Zi


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