RE: [PATCH 1/3] arm64: dts: freescale: Add i.MX8MP dtsi support

From: Anson Huang
Date: Sun Jan 12 2020 - 23:46:47 EST


Hi, Shawn

> Subject: Re: [PATCH 1/3] arm64: dts: freescale: Add i.MX8MP dtsi support
>
> On Fri, Dec 27, 2019 at 01:59:43PM +0800, Anson Huang wrote:
> > The i.MX8M Plus Media Applications Processor is part of the growing
> > mScale family targeting the consumer and industrial market. It brings
> > an effective Machine Learning and AI accelerator that enables a new
> > class of applications. It is built in Samsung 14LPP to achieve both
> > high performance and low power consumption and relies on a powerful
> > fully coherent core complex based on a quad core ARM Cortex-A53
> > cluster and Cortex-M7 low-power coprocessor, audio digital signal
> > processor, machine learning and graphics accelerators.
> >
> > Add the basic dtsi support for i.MX8MP.
> >
> > Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
> > ---
> > arch/arm64/boot/dts/freescale/imx8mp.dtsi | 598
> > ++++++++++++++++++++++++++++++
> > 1 file changed, 598 insertions(+)
> > create mode 100644 arch/arm64/boot/dts/freescale/imx8mp.dtsi
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > new file mode 100644
> > index 0000000..0fb29cc
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > @@ -0,0 +1,598 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > +/*
> > + * Copyright 2019 NXP
> > + */
> > +
> > +#include <dt-bindings/clock/imx8mp-clock.h>
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/input/input.h>
> > +#include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +#include "imx8mp-pinfunc.h"
> > +
> > +/ {
> > + interrupt-parent = <&gic>;
> > + #address-cells = <2>;
> > + #size-cells = <2>;
> > +
> > + aliases {
> > + ethernet0 = &fec;
> > + gpio0 = &gpio1;
> > + gpio1 = &gpio2;
> > + gpio2 = &gpio3;
> > + gpio3 = &gpio4;
> > + gpio4 = &gpio5;
> > + mmc0 = &usdhc1;
> > + mmc1 = &usdhc2;
> > + mmc2 = &usdhc3;
> > + serial0 = &uart1;
> > + serial1 = &uart2;
> > + serial2 = &uart3;
> > + serial3 = &uart4;
> > + };
> > +
> > + cpus {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + A53_0: cpu@0 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a53";
> > + reg = <0x0>;
> > + clock-latency = <61036>;
> > + clocks = <&clk IMX8MP_CLK_ARM>;
> > + enable-method = "psci";
> > + next-level-cache = <&A53_L2>;
> > + };
> > +
> > + A53_1: cpu@1 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a53";
> > + reg = <0x1>;
> > + clock-latency = <61036>;
> > + clocks = <&clk IMX8MP_CLK_ARM>;
> > + enable-method = "psci";
> > + next-level-cache = <&A53_L2>;
> > + };
> > +
> > + A53_2: cpu@2 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a53";
> > + reg = <0x2>;
> > + clock-latency = <61036>;
> > + clocks = <&clk IMX8MP_CLK_ARM>;
> > + enable-method = "psci";
> > + next-level-cache = <&A53_L2>;
> > + };
> > +
> > + A53_3: cpu@3 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a53";
> > + reg = <0x3>;
> > + clock-latency = <61036>;
> > + clocks = <&clk IMX8MP_CLK_ARM>;
> > + enable-method = "psci";
> > + next-level-cache = <&A53_L2>;
> > + };
> > +
> > + A53_L2: l2-cache0 {
> > + compatible = "cache";
> > + };
> > + };
> > +
> > + osc_32k: clock-osc-32k {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <32768>;
> > + clock-output-names = "osc_32k";
> > + };
> > +
> > + osc_24m: clock-osc-24m {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <24000000>;
> > + clock-output-names = "osc_24m";
> > + };
> > +
> > + clk_ext1: clock-ext1 {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <133000000>;
> > + clock-output-names = "clk_ext1";
> > + };
> > +
> > + clk_ext2: clock-ext2 {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <133000000>;
> > + clock-output-names = "clk_ext2";
> > + };
> > +
> > + clk_ext3: clock-ext3 {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <133000000>;
> > + clock-output-names = "clk_ext3";
> > + };
> > +
> > + clk_ext4: clock-ext4 {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency= <133000000>;
> > + clock-output-names = "clk_ext4";
> > + };
> > +
> > + psci {
> > + compatible = "arm,psci-1.0";
> > + method = "smc";
> > + };
> > +
> > + timer {
> > + compatible = "arm,armv8-timer";
> > + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(6) |
> IRQ_TYPE_LEVEL_LOW)>,
> > + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(6) |
> IRQ_TYPE_LEVEL_LOW)>,
> > + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(6) |
> IRQ_TYPE_LEVEL_LOW)>,
> > + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(6) |
> IRQ_TYPE_LEVEL_LOW)>;
> > + clock-frequency = <8000000>;
> > + arm,no-tick-in-suspend;
> > + };
> > +
> > + soc@0 {
> > + compatible = "simple-bus";
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + ranges = <0x0 0x0 0x0 0x3e000000>;
> > +
> > + aips1: bus@30000000 {
> > + compatible = "simple-bus";
> > + reg = <0x30000000 0x400000>;
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + ranges;
> > +
> > + gpio1: gpio@30200000 {
> > + compatible = "fsl,imx8mp-gpio", "fsl,imx35-
> gpio";
>
> I would enforce that any new compatible needs to be documented.

The i.MX GPIO binding doc has below compatible statement to cover all i.MX GPIO, so
no need to update the binding doc when adding new SoC's GPIO compatible?

Required properties:
- compatible : Should be "fsl,<soc>-gpio"

BTW, for those un-documented compatible, I will update the binding doc in V2.

>
> > + reg = <0x30200000 0x10000>;
> > + interrupts = <GIC_SPI 64
> IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 65
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_GPIO1_ROOT>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + gpio-ranges = <&iomuxc 0 5 30>;
> > + };
> > +
> > + gpio2: gpio@30210000 {
> > + compatible = "fsl,imx8mp-gpio", "fsl,imx35-
> gpio";
> > + reg = <0x30210000 0x10000>;
> > + interrupts = <GIC_SPI 66
> IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 67
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_GPIO2_ROOT>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + gpio-ranges = <&iomuxc 0 35 21>;
> > + };
> > +
> > + gpio3: gpio@30220000 {
> > + compatible = "fsl,imx8mp-gpio", "fsl,imx35-
> gpio";
> > + reg = <0x30220000 0x10000>;
> > + interrupts = <GIC_SPI 68
> IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 69
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_GPIO3_ROOT>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + gpio-ranges = <&iomuxc 0 56 26>, <&iomuxc
> 0 144 4>;
> > + };
> > +
> > + gpio4: gpio@30230000 {
> > + compatible = "fsl,imx8mp-gpio", "fsl,imx35-
> gpio";
> > + reg = <0x30230000 0x10000>;
> > + interrupts = <GIC_SPI 70
> IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 71
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_GPIO4_ROOT>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + gpio-ranges = <&iomuxc 0 82 32>;
> > + };
> > +
> > + gpio5: gpio@30240000 {
> > + compatible = "fsl,imx8mp-gpio", "fsl,imx35-
> gpio";
> > + reg = <0x30240000 0x10000>;
> > + interrupts = <GIC_SPI 72
> IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 73
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_GPIO5_ROOT>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + gpio-ranges = <&iomuxc 0 114 30>;
> > + };
> > +
> > + wdog1: watchdog@30280000 {
> > + compatible = "fsl,imx8mp-wdt", "fsl,imx21-
> wdt";
> > + reg = <0x30280000 0x10000>;
> > + interrupts = <GIC_SPI 78
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_WDOG1_ROOT>;
> > + status = "disabled";
> > + };
> > +
> > + iomuxc: pinctrl@30330000 {
> > + compatible = "fsl,imx8mp-iomuxc";
> > + reg = <0x30330000 0x10000>;
> > + };
> > +
> > + gpr: iomuxc-gpr@30340000 {
> > + compatible = "fsl,imx8mp-iomuxc-gpr",
> "syscon";
> > + reg = <0x30340000 0x10000>;
> > + };
> > +
> > + ocotp: ocotp-ctrl@30350000 {
> > + compatible = "fsl,imx8mp-ocotp",
> "fsl,imx8mm-ocotp", "syscon";
> > + reg = <0x30350000 0x10000>;
> > + clocks = <&clk IMX8MP_CLK_OCOTP_ROOT>;
> > + /* For nvmem subnodes */
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > +
> > + cpu_speed_grade: speed-grade@10 {
> > + reg = <0x10 4>;
> > + };
> > + };
> > +
> > + anatop: anatop@30360000 {
> > + compatible = "fsl,imx8mp-anatop",
> "fsl,imx8mm-anatop",
> > + "syscon";
> > + reg = <0x30360000 0x10000>;
> > + };
> > +
> > + snvs: snvs@30370000 {
> > + compatible = "fsl,sec-v4.0-mon","syscon",
> "simple-mfd";
> > + reg = <0x30370000 0x10000>;
> > +
> > + snvs_rtc: snvs-rtc-lp {
> > + compatible = "fsl,sec-v4.0-mon-rtc-
> lp";
> > + regmap =<&snvs>;
> > + offset = <0x34>;
> > + interrupts = <GIC_SPI 19
> IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 20
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk
> IMX8MP_CLK_SNVS_ROOT>;
> > + clock-names = "snvs-rtc";
> > + };
> > +
> > + snvs_pwrkey: snvs-powerkey {
> > + compatible = "fsl,sec-v4.0-pwrkey";
> > + regmap = <&snvs>;
> > + interrupts = <GIC_SPI 4
> IRQ_TYPE_LEVEL_HIGH>;
> > + linux,keycode = <KEY_POWER>;
> > + wakeup-source;
> > + status = "disabled";
> > + };
> > + };
> > +
> > + clk: clock-controller@30380000 {
> > + compatible = "fsl,imx8mp-ccm";
> > + reg = <0x30380000 0x10000>;
> > + #clock-cells = <1>;
> > + clocks = <&osc_32k>, <&osc_24m>,
> <&clk_ext1>, <&clk_ext2>,
> > + <&clk_ext3>, <&clk_ext4>;
> > + clock-names = "osc_32k", "osc_24m",
> "clk_ext1", "clk_ext2",
> > + "clk_ext3", "clk_ext4";
> > + assigned-clocks = <&clk
> IMX8MP_CLK_AUDIO_AHB>,
> > + <&clk
> IMX8MP_CLK_IPG_AUDIO_ROOT>,
> > + <&clk
> IMX8MP_AUDIO_PLL1>,
> > + <&clk
> IMX8MP_AUDIO_PLL2>;
> > + };
> > +
> > + src: src@30390000 {
> > + compatible = "fsl,imx8mp-src", "fsl,imx8mq-
> src", "syscon";
> > + reg = <0x30390000 0x10000>;
> > + interrupts = <GIC_SPI 89
> IRQ_TYPE_LEVEL_HIGH>;
> > + #reset-cells = <1>;
> > + };
> > + };
> > +
> > + aips2: bus@30400000 {
> > + compatible = "simple-bus";
> > + reg = <0x30400000 0x400000>;
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + ranges;
> > +
> > + pwm1: pwm@30660000 {
> > + compatible = "fsl,imx8mp-pwm", "fsl,imx27-
> pwm";
> > + reg = <0x30660000 0x10000>;
> > + interrupts = <GIC_SPI 81
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_PWM1_ROOT>,
> > + <&clk IMX8MP_CLK_PWM1_ROOT>;
> > + clock-names = "ipg", "per";
> > + #pwm-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + pwm2: pwm@30670000 {
> > + compatible = "fsl,imx8mp-pwm", "fsl,imx27-
> pwm";
> > + reg = <0x30670000 0x10000>;
> > + interrupts = <GIC_SPI 82
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_PWM2_ROOT>,
> > + <&clk IMX8MP_CLK_PWM2_ROOT>;
> > + clock-names = "ipg", "per";
> > + #pwm-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + pwm3: pwm@30680000 {
> > + compatible = "fsl,imx8mp-pwm", "fsl,imx27-
> pwm";
> > + reg = <0x30680000 0x10000>;
> > + interrupts = <GIC_SPI 83
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_PWM3_ROOT>,
> > + <&clk IMX8MP_CLK_PWM3_ROOT>;
> > + clock-names = "ipg", "per";
> > + #pwm-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + pwm4: pwm@30690000 {
> > + compatible = "fsl,imx8mp-pwm", "fsl,imx27-
> pwm";
> > + reg = <0x30690000 0x10000>;
> > + interrupts = <GIC_SPI 84
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_PWM4_ROOT>,
> > + <&clk IMX8MP_CLK_PWM4_ROOT>;
> > + clock-names = "ipg", "per";
> > + #pwm-cells = <2>;
> > + status = "disabled";
> > + };
> > + };
> > +
> > + aips3: bus@30800000 {
> > + compatible = "simple-bus";
> > + reg = <0x30800000 0x400000>;
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + ranges;
> > +
> > + ecspi1: spi@30820000 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + compatible = "fsl,imx8mp-ecspi", "fsl,imx51-
> ecspi";
> > + reg = <0x30820000 0x10000>;
> > + interrupts = <GIC_SPI 31
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_ECSPI1_ROOT>,
> > + <&clk IMX8MP_CLK_ECSPI1_ROOT>;
> > + clock-names = "ipg", "per";
> > + dmas = <&sdma1 0 7 1>, <&sdma1 1 7 2>;
> > + dma-names = "rx", "tx";
> > + status = "disabled";
> > + };
> > +
> > + ecspi2: spi@30830000 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + compatible = "fsl,imx8mp-ecspi", "fsl,imx51-
> ecspi";
> > + reg = <0x30830000 0x10000>;
> > + interrupts = <GIC_SPI 32
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_ECSPI2_ROOT>,
> > + <&clk IMX8MP_CLK_ECSPI2_ROOT>;
> > + clock-names = "ipg", "per";
> > + dmas = <&sdma1 2 7 1>, <&sdma1 3 7 2>;
> > + dma-names = "rx", "tx";
> > + status = "disabled";
> > + };
> > +
> > + ecspi3: spi@30840000 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + compatible = "fsl,imx8mp-ecspi", "fsl,imx51-
> ecspi";
> > + reg = <0x30840000 0x10000>;
> > + interrupts = <GIC_SPI 33
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_ECSPI3_ROOT>,
> > + <&clk IMX8MP_CLK_ECSPI3_ROOT>;
> > + clock-names = "ipg", "per";
> > + dmas = <&sdma1 4 7 1>, <&sdma1 5 7 2>;
> > + dma-names = "rx", "tx";
> > + status = "disabled";
> > + };
> > +
> > + uart1: serial@30860000 {
> > + compatible = "fsl,imx8mp-uart", "fsl,imx6q-
> uart";
> > + reg = <0x30860000 0x10000>;
> > + interrupts = <GIC_SPI 26
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_UART1_ROOT>,
> > + <&clk IMX8MP_CLK_UART1_ROOT>;
> > + clock-names = "ipg", "per";
> > + dmas = <&sdma1 22 4 0>, <&sdma1 23 4 0>;
> > + dma-names = "rx", "tx";
> > + status = "disabled";
> > + };
> > +
> > + uart3: serial@30880000 {
> > + compatible = "fsl,imx8mp-uart", "fsl,imx6q-
> uart";
> > + reg = <0x30880000 0x10000>;
> > + interrupts = <GIC_SPI 28
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_UART3_ROOT>,
> > + <&clk IMX8MP_CLK_UART3_ROOT>;
> > + clock-names = "ipg", "per";
> > + dmas = <&sdma1 26 4 0>, <&sdma1 27 4 0>;
> > + dma-names = "rx", "tx";
> > + status = "disabled";
> > + };
> > +
> > + uart2: serial@30890000 {
> > + compatible = "fsl,imx8mp-uart", "fsl,imx6q-
> uart";
> > + reg = <0x30890000 0x10000>;
> > + interrupts = <GIC_SPI 27
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_UART2_ROOT>,
> > + <&clk IMX8MP_CLK_UART2_ROOT>;
> > + clock-names = "ipg", "per";
> > + status = "disabled";
> > + };
> > +
> > + i2c1: i2c@30a20000 {
> > + compatible = "fsl,imx8mp-i2c", "fsl,imx21-i2c";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + reg = <0x30a20000 0x10000>;
> > + interrupts = <GIC_SPI 35
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_I2C1_ROOT>;
> > + status = "disabled";
> > + };
> > +
> > + i2c2: i2c@30a30000 {
> > + compatible = "fsl,imx8mp-i2c", "fsl,imx21-i2c";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + reg = <0x30a30000 0x10000>;
> > + interrupts = <GIC_SPI 36
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_I2C2_ROOT>;
> > + status = "disabled";
> > + };
> > +
> > + i2c3: i2c@30a40000 {
> > + compatible = "fsl,imx8mm-i2c", "fsl,imx21-
> i2c";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + reg = <0x30a40000 0x10000>;
> > + interrupts = <GIC_SPI 37
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_I2C3_ROOT>;
> > + status = "disabled";
> > + };
> > +
> > + i2c4: i2c@30a50000 {
> > + compatible = "fsl,imx8mp-i2c", "fsl,imx21-i2c";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + reg = <0x30a50000 0x10000>;
> > + interrupts = <GIC_SPI 38
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_I2C4_ROOT>;
> > + status = "disabled";
> > + };
> > +
> > + uart4: serial@30a60000 {
> > + compatible = "fsl,imx8mp-uart", "fsl,imx6q-
> uart";
> > + reg = <0x30a60000 0x10000>;
> > + interrupts = <GIC_SPI 29
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_UART4_ROOT>,
> > + <&clk IMX8MP_CLK_UART4_ROOT>;
> > + clock-names = "ipg", "per";
> > + dmas = <&sdma1 28 4 0>, <&sdma1 29 4 0>;
> > + dma-names = "rx", "tx";
> > + status = "disabled";
> > + };
> > +
> > + i2c5: i2c@30ad0000 {
> > + compatible = "fsl,imx8mp-i2c", "fsl,imx21-i2c";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + reg = <0x30ad0000 0x10000>;
> > + interrupts = <GIC_SPI 76
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_I2C5_ROOT>;
> > + status = "disabled";
> > + };
> > +
> > + i2c6: i2c@30ae0000 {
> > + compatible = "fsl,imx8mp-i2c", "fsl,imx21-i2c";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + reg = <0x30ae0000 0x10000>;
> > + interrupts = <GIC_SPI 77
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_I2C6_ROOT>;
> > + status = "disabled";
> > + };
> > +
> > + usdhc1: mmc@30b40000 {
> > + compatible = "fsl,imx8mm-usdhc",
> "fsl,imx7d-usdhc";
>
> Why would we need two non-imx8mp compatibles here?

It is a mistake, will use "fsl,imx8mp-usdhc" in V2.

>
> > + reg = <0x30b40000 0x10000>;
> > + interrupts = <GIC_SPI 22
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_DUMMY>,
> > + <&clk
> IMX8MP_CLK_NAND_USDHC_BUS>,
> > + <&clk IMX8MP_CLK_USDHC1_ROOT>;
> > + clock-names = "ipg", "ahb", "per";
> > + fsl,tuning-start-tap = <20>;
> > + fsl,tuning-step= <2>;
> > + bus-width = <4>;
> > + status = "disabled";
> > + };
> > +
> > + usdhc2: mmc@30b50000 {
> > + compatible = "fsl,imx8mm-usdhc",
> "fsl,imx7d-usdhc";
> > + reg = <0x30b50000 0x10000>;
> > + interrupts = <GIC_SPI 23
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_DUMMY>,
> > + <&clk
> IMX8MP_CLK_NAND_USDHC_BUS>,
> > + <&clk IMX8MP_CLK_USDHC2_ROOT>;
> > + clock-names = "ipg", "ahb", "per";
> > + fsl,tuning-start-tap = <20>;
> > + fsl,tuning-step= <2>;
> > + bus-width = <4>;
> > + status = "disabled";
> > + };
> > +
> > + usdhc3: mmc@30b60000 {
> > + compatible = "fsl,imx8mm-usdhc",
> "fsl,imx7d-usdhc";
> > + reg = <0x30b60000 0x10000>;
> > + interrupts = <GIC_SPI 24
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_DUMMY>,
> > + <&clk
> IMX8MP_CLK_NAND_USDHC_BUS>,
> > + <&clk IMX8MP_CLK_USDHC3_ROOT>;
> > + clock-names = "ipg", "ahb", "per";
> > + fsl,tuning-start-tap = <20>;
> > + fsl,tuning-step= <2>;
> > + bus-width = <4>;
> > + status = "disabled";
> > + };
> > +
> > + sdma1: dma-controller@30bd0000 {
> > + compatible = "fsl,imx8mp-sdma",
> "fsl,imx8mq-sdma";
> > + reg = <0x30bd0000 0x10000>;
> > + interrupts = <GIC_SPI 2
> IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&clk IMX8MP_CLK_SDMA1_ROOT>,
> > + <&clk IMX8MP_CLK_SDMA1_ROOT>;
> > + clock-names = "ipg", "ahb";
> > + #dma-cells = <3>;
> > + fsl,sdma-ram-script-name =
> "imx/sdma/sdma-imx7d.bin";
> > + };
> > +
> > + fec: ethernet@30be0000 {
> > + compatible = "fsl,imx8mm-fec", "fsl,imx8mq-
> fec",
> > +"fsl,imx6sx-fec";
>
> We need only one non-imx8mp fallback compatible to get it probed, right?

It should be "fsl,imx8mp-fec" and followed by "fsl,imx8mq-fec", will fix it in V2.

Thanks,
Anson