[PATCH 1/2] dt-bindings: arm: fsl: Add i.MX8MP FRDM board

[PATCH 1/2] dt-bindings: arm: fsl: Add i.MX8MP FRDM board

[Rogerio Pimentel]

Add device tree compatible string for the i.MX8MP FRDM board.

Signed-off-by: Rogerio Pimentel <rpimentel.silva@gmail.com>
---
 Documentation/devicetree/bindings/arm/fsl.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 00cdf490b062..8bddf1f8a78d 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -1099,6 +1099,7 @@ properties:
               - emcraft,imx8mp-navqp      # i.MX8MP Emcraft Systems NavQ+ Kit
               - fsl,imx8mp-evk            # i.MX8MP EVK Board
               - fsl,imx8mp-evk-revb4      # i.MX8MP EVK Rev B4 Board
+              - fsl,imx8mp-frdm           # i.MX8MP Freedom Board
               - gateworks,imx8mp-gw71xx-2x # i.MX8MP Gateworks Board
               - gateworks,imx8mp-gw72xx-2x # i.MX8MP Gateworks Board
               - gateworks,imx8mp-gw73xx-2x # i.MX8MP Gateworks Board
-- 
2.25.1

[PATCH 2/2] arm64: dts: add support for NXP i.MX8MP FRDM board

[Rogerio Pimentel]

The FRDM-i.MX8MP is an NXP development platform based on the i.MX8M Plus
SoC, featuring a quad Cortex-A53, Cortex-M7 co-processor, 4GB LPDDR4,
32GB eMMC, Wi-Fi 6/Bluetooth 5.4/802.15.4 tri-radio, Ethernet, HDMI/MIPI
display interfaces, camera connectors, and standard expansion headers.

Based on the device tree found in the NXP repository at github
https://github.com/nxp-imx-support/meta-imx-frdm and on imx8mp-evk
board kernel mainline device tree.

This is a basic device tree supporting:

 - Quad Cortex-A53
 - 4GB LPDDR4 DRAM
 - PCA9450C PMIC with regulators
 - Two NXP PCAL6416 GPIO expanders
 - RGB LEDs via GPIO expander
 - I2C1, I2C2, I2C3 controllers
 - UART2 (console) and UART3 (with RTS/CTS)
 - USDHC3 (8-bit eMMC)
 - SNVS power key (onboard power button)

Signed-off-by: Rogerio Pimentel <rpimentel.silva@gmail.com>
---
 arch/arm64/boot/dts/freescale/Makefile        |   1 +
 arch/arm64/boot/dts/freescale/imx8mp-frdm.dts | 351 ++++++++++++++++++
 2 files changed, 352 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-frdm.dts

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 525ef180481d..d861e576779a 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -206,6 +206,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-pdk3.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-picoitx.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-edm-g-wb.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-frdm.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-hummingboard-mate.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-hummingboard-pro.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-hummingboard-pulse.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-frdm.dts b/arch/arm64/boot/dts/freescale/imx8mp-frdm.dts
new file mode 100644
index 000000000000..a10e458365c5
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-frdm.dts
@@ -0,0 +1,351 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/dts-v1/;
+
+#include "imx8mp.dtsi"
+
+/ {
+	model = "NXP i.MX8MPlus FRDM board";
+	compatible = "fsl,imx8mp-frdm", "fsl,imx8mp";
+
+	chosen {
+		stdout-path = &uart2;
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		red {
+			label = "led-0";
+			gpios = <&pcal6416 13 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		green {
+			label = "led-1";
+			gpios = <&pcal6416 14 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+
+		blue {
+			label = "led-2";
+			gpios = <&pcal6416 15 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x0 0x40000000 0 0xc0000000>,
+		      <0x1 0x00000000 0 0x40000000>;
+	};
+};
+
+&A53_0 {
+	cpu-supply = <&reg_arm>;
+};
+
+&A53_1 {
+	cpu-supply = <&reg_arm>;
+};
+
+&A53_2 {
+	cpu-supply = <&reg_arm>;
+};
+
+&A53_3 {
+	cpu-supply = <&reg_arm>;
+};
+
+&i2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	pmic@25 {
+		compatible = "nxp,pca9450c";
+		reg = <0x25>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pmic>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+
+		regulators {
+			BUCK1 {
+				regulator-name = "BUCK1";
+				regulator-min-microvolt = <720000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+			};
+
+			reg_arm: BUCK2 {
+				regulator-name = "BUCK2";
+				regulator-min-microvolt = <720000>;
+				regulator-max-microvolt = <1025000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+				nxp,dvs-run-voltage = <950000>;
+				nxp,dvs-standby-voltage = <850000>;
+			};
+
+			BUCK4 {
+				regulator-name = "BUCK4";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3600000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			reg_buck5: BUCK5 {
+				regulator-name = "BUCK5";
+				regulator-min-microvolt = <1650000>;
+				regulator-max-microvolt = <1950000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			BUCK6 {
+				regulator-name = "BUCK6";
+				regulator-min-microvolt = <1045000>;
+				regulator-max-microvolt = <1155000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			LDO1 {
+				regulator-name = "LDO1";
+				regulator-min-microvolt = <1650000>;
+				regulator-max-microvolt = <1950000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			LDO3 {
+				regulator-name = "LDO3";
+				regulator-min-microvolt = <1710000>;
+				regulator-max-microvolt = <1890000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			LDO5 {
+				regulator-name = "LDO5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+
+	pcal6416: gpio@20 {
+		compatible = "nxp,pcal6416";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pcal6416_int>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
+		gpio-line-names = "CSI1_nRST",
+			"CSI2_nRST",
+			"DSI_CTP_RST",
+			"EXT_PWREN1",
+			"CAN_STBY",
+			"EXP_P0_5",
+			"EXP_P0_6",
+			"P0_7",
+			"LVDS0_BLT_EN",
+			"LVDS1_BLT_EN",
+			"LVDS0_CTP_RST",
+			"LVDS1_CTP_RST",
+			"SPK_PWREN",
+			"RLED_GPIO",
+			"GLED_GPIO",
+			"BLED_GPIO";
+	};
+
+	pcal6416_1: gpio@21 {
+		compatible = "nxp,pcal6416";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pcal6416_1_int>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		gpio-line-names = "P0_0",
+			"P0_1",
+			"AUD_nINT",
+			"RTC_nINTA",
+			"USB1_SS_SEL",
+			"USB2_PWR_EN",
+			"SPI_EXP_SEL",
+			"P0_7",
+			"W2_HOST_WAKE_SD_3V3",
+			"W2_HOST_WAKE_BT_3V3",
+			"EXP_WIFI_BT_PDN_3V3",
+			"EXP_BT_RST_3V3",
+			"W2_RST_IND_3V3",
+			"SPI_nINT_3V3",
+			"KEYM_PCIE_nWAKE",
+			"P1_7";
+	};
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+};
+
+&i2c3 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+};
+
+&snvs_pwrkey {
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	assigned-clocks = <&clk IMX8MP_CLK_UART3>;
+	assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_80M>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&usdhc3 {
+	assigned-clocks = <&clk IMX8MP_CLK_USDHC3>;
+	assigned-clock-rates = <400000000>;
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL	0x400001c2
+			MX8MP_IOMUXC_I2C1_SDA__I2C1_SDA	0x400001c2
+		>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C2_SCL__I2C2_SCL	0x400001c2
+			MX8MP_IOMUXC_I2C2_SDA__I2C2_SDA	0x400001c2
+		>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C3_SCL__I2C3_SCL	0x400001c2
+			MX8MP_IOMUXC_I2C3_SDA__I2C3_SDA	0x400001c2
+		>;
+	};
+
+	pinctrl_pmic: pmicgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03	0x000001c0
+		>;
+	};
+
+	pinctrl_pcal6416_int: pcal6416_int_grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_READY_B__GPIO3_IO16	0x146
+		>;
+	};
+
+	pinctrl_pcal6416_1_int: pcal6416_1_int_grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD1_STROBE__GPIO2_IO11	0x146
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX	0x140
+			MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX	0x140
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_ECSPI1_SCLK__UART3_DCE_RX	0x140
+			MX8MP_IOMUXC_ECSPI1_MOSI__UART3_DCE_TX	0x140
+			MX8MP_IOMUXC_ECSPI1_SS0__UART3_DCE_RTS	0x140
+			MX8MP_IOMUXC_ECSPI1_MISO__UART3_DCE_CTS	0x140
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK	0x190
+			MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD	0x1d0
+			MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0	0x1d0
+			MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1	0x1d0
+			MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2	0x1d0
+			MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3	0x1d0
+			MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4	0x1d0
+			MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5	0x1d0
+			MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6	0x1d0
+			MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7	0x1d0
+			MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE	0x190
+		>;
+	};
+
+	pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK	0x194
+			MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD	0x1d4
+			MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0	0x1d4
+			MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1	0x1d4
+			MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2	0x1d4
+			MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3	0x1d4
+			MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4	0x1d4
+			MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5	0x1d4
+			MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6	0x1d4
+			MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7	0x1d4
+			MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE	0x194
+		>;
+	};
+
+	pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK	0x196
+			MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD	0x1d6
+			MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0	0x1d6
+			MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1	0x1d6
+			MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2	0x1d6
+			MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3	0x1d6
+			MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4	0x1d6
+			MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5	0x1d6
+			MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6	0x1d6
+			MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7	0x1d6
+			MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE	0x196
+		>;
+	};
+};
-- 
2.25.1

Re: [PATCH 2/2] arm64: dts: add support for NXP i.MX8MP FRDM board

[Peng Fan]

On Wed, Sep 17, 2025 at 09:40:53PM -0400, Rogerio Pimentel wrote:
>The FRDM-i.MX8MP is an NXP development platform based on the i.MX8M Plus
>SoC, featuring a quad Cortex-A53, Cortex-M7 co-processor, 4GB LPDDR4,
>32GB eMMC, Wi-Fi 6/Bluetooth 5.4/802.15.4 tri-radio, Ethernet, HDMI/MIPI
>display interfaces, camera connectors, and standard expansion headers.
>
>Based on the device tree found in the NXP repository at github
>https://github.com/nxp-imx-support/meta-imx-frdm and on imx8mp-evk
>board kernel mainline device tree.
>
>This is a basic device tree supporting:
>
> - Quad Cortex-A53
> - 4GB LPDDR4 DRAM
> - PCA9450C PMIC with regulators
> - Two NXP PCAL6416 GPIO expanders
> - RGB LEDs via GPIO expander
> - I2C1, I2C2, I2C3 controllers
> - UART2 (console) and UART3 (with RTS/CTS)
> - USDHC3 (8-bit eMMC)
> - SNVS power key (onboard power button)
>
>Signed-off-by: Rogerio Pimentel <rpimentel.silva@gmail.com>

LTGM: Reviewed-by: Peng Fan <peng.fan@nxp.com>

Re: [PATCH 2/2] arm64: dts: add support for NXP i.MX8MP FRDM board

[Daniel Baluta]

On Thu, Sep 18, 2025 at 4:44 AM Rogerio Pimentel
<rpimentel.silva@gmail.com> wrote:
>
> The FRDM-i.MX8MP is an NXP development platform based on the i.MX8M Plus
> SoC, featuring a quad Cortex-A53, Cortex-M7 co-processor, 4GB LPDDR4,
> 32GB eMMC, Wi-Fi 6/Bluetooth 5.4/802.15.4 tri-radio, Ethernet, HDMI/MIPI
> display interfaces, camera connectors, and standard expansion headers.
>
> Based on the device tree found in the NXP repository at github
> https://github.com/nxp-imx-support/meta-imx-frdm and on imx8mp-evk
> board kernel mainline device tree.

Hi Rogerio,

Please keep the original Signed-off-by from NXP (DCO [1]) and also please keep
the Copyright line from NXP.

Also, adding Xiaofeng for comments.

Re: [PATCH 1/2] dt-bindings: arm: fsl: Add i.MX8MP FRDM board

[Rob Herring (Arm)]

On Wed, 17 Sep 2025 21:40:52 -0400, Rogerio Pimentel wrote:
> Add device tree compatible string for the i.MX8MP FRDM board.
> 
> Signed-off-by: Rogerio Pimentel <rpimentel.silva@gmail.com>
> ---
>  Documentation/devicetree/bindings/arm/fsl.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 


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: remotes/next/fs-next-7200-gdcb597fa814c (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/freescale/' for 20250918014053.696710-1-rpimentel.silva@gmail.com:

arch/arm64/boot/dts/freescale/imx8mp-frdm.dtb: gpio-leds (gpio-leds): 'blue', 'green', 'red' do not match any of the regexes: '(^led-[0-9a-f]$|led)', '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/leds/leds-gpio.yaml#