[PATCH v2 2/3] ARM: IMX8MP: add initial support for Variscite DT8MCustomBoard with iMX8MP

[Sascha Hauer]

Hi Michael,

Looks good now. I squashed in some things while applying, see below.

On Thu, Feb 23, 2023 at 04:36:00PM +0100, Michael Kopfensteiner wrote:
> The Variscite DT8MCustomBoard is an eval board for the several Variscite
> SOMs of their "DART" product line. This commit adds support for that
> baseboard in combination with a DART-MX8M-PLUS SOM. The commit contains
> an adapted version of the vendors device tree [1] and the vendors DDR
> timings, taken from Variscite's public U-Boot sources [2].
> 
> Both files have been slightly changed to integrate well with barebox.
> 
> The boardsupport added with this commit does not yet support every
> feature of the DT8MCustomBoard. Yet it already supports all basic
> necessities to make use of barebox.
> 
> [1] https://github.com/varigit/linux-imx/tree/3f94f35bda827e8aa06beadb10c77358cfb6dad9
> [2] https://github.com/varigit/uboot-imx/tree/7cad2ff68a508c71c572151a85bc786711bab969
> 
> Signed-off-by: Michael Kopfensteiner <michael.kopfensteiner at vahle.com>
> ---

[...]

> +	gpio-leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_gpio_leds>;
> +
> +		gp-led1 {
> +			label = "led1";
> +			gpios = <&pca6408_2 7 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "heartbeat";
> +			barebox,default-trigger = "heartbeat";

Dropped the barebox,default-trigger property. barebox evaluates the
linux,default-trigger as well and as long as both properties don't
differ there shouldn't be a need to have both.

> +&i2c1 {
> +	clock-frequency = <400000>;
> +	pinctrl-names = "default", "gpio";
> +	pinctrl-0 = <&pinctrl_i2c1>;
> +	pinctrl-1 = <&pinctrl_i2c1_gpio>;
> +	scl-gpios = <&gpio5 14 GPIO_ACTIVE_HIGH>;
> +	sda-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +
> +	pca9450 at 25 {
> +		reg = <0x25>;
> +		compatible = "nxp,pca9450c";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_pmic>;
> +		interrupt-parent = <&gpio1>;
> +		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> +		status = "okay";

Dropped this status property, shouldn't be needed.

> +&usdhc1 {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	pinctrl-names = "default", "state_100mhz", "state_200mhz";
> +	pinctrl-0 = <&pinctrl_usdhc1>, <&pinctrl_wifi>;
> +	pinctrl-1 = <&pinctrl_usdhc1_100mhz>, <&pinctrl_wifi>;
> +	pinctrl-2 = <&pinctrl_usdhc1_200mhz>, <&pinctrl_wifi>;
> +	bus-width = <4>;
> +	non-removable;
> +	keep-power-in-suspend;
> +	status = "okay";
> +
> +	brcmf: bcrmf at 1 {
> +		reg = <1>;
> +		compatible = "brcm,bcm4329-fmac";
> +		laird,regdomain = "US";

Dropped this property. It is not evaluated by mainline Linux and it also
doesn't make sense to compile this in statically.

Sascha

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