Re: [PATCHv5 1/2] ARM: dts: imx6ul: Add Variscite DART-6UL SoM support

From: Marco Felsch
Date: Thu Aug 29 2019 - 03:28:52 EST

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In reply to: Oliver Graute: "[PATCHv5 1/2] ARM: dts: imx6ul: Add Variscite DART-6UL SoM support"
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Hi Oliver,

thanks for the patch.

On 19-08-28 18:19, Oliver Graute wrote:
> This patch adds support for the i.MX6UL variant of the Variscite DART-6UL
> SoM Carrier-Board
>
> Signed-off-by: Oliver Graute <oliver.graute@xxxxxxxxx>
> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
> Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
> ---
> .../boot/dts/imx6ul-imx6ull-var-dart-common.dtsi | 445 +++++++++++++++++++++

Is it a imx6ul or a imx6ull? Also can you add a changelog the next time?

> 1 file changed, 445 insertions(+)
> create mode 100644 arch/arm/boot/dts/imx6ul-imx6ull-var-dart-common.dtsi
>
> diff --git a/arch/arm/boot/dts/imx6ul-imx6ull-var-dart-common.dtsi b/arch/arm/boot/dts/imx6ul-imx6ull-var-dart-common.dtsi
> new file mode 100644
> index 00000000..f345d69
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6ul-imx6ull-var-dart-common.dtsi
> @@ -0,0 +1,445 @@
> +// SPDX-License-Identifier: (GPL-2.0)
> +/dts-v1/;
> +
> +#include "imx6ul.dtsi"
> +/ {
> + chosen {
> + stdout-path = &uart1;

You specify uart1 here and disable the node below... That seems wrong to
me.

> + };
> +
> + memory@80000000 {
> + device_type = "memory";
> + reg = <0x80000000 0x20000000>;
> + };
> +
> + touch_3v3_regulator: regulator-touch-3v3 {
> + compatible = "regulator-fixed";
> + regulator-name = "touch_3v3_supply";
> + regulator-always-on;

Why is it always-on?

> + };

Please name the phandle reg_touch_3v3 and specify the
regulator-min-microvolt/regulator-max-microvolt properties.

> +
> + reg_sd1_vmmc: regulator-sd1-vmmc {
> + compatible = "regulator-fixed";
> + regulator-name = "VSD_3V3";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + reg_gpio_dvfs: regulator-gpio {
> + compatible = "regulator-gpio";
> + regulator-min-microvolt = <1300000>;
> + regulator-max-microvolt = <1400000>;
> + regulator-name = "gpio_dvfs";
> + regulator-type = "voltage";
> + gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + states = <1300000 0x1 1400000 0x0>;
> + };
> +
> + rmii_ref_clk: clock-rmii-ref {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <25000000>;
> + clock-output-names = "rmii-ref";
> + };

Alphabetical ordering please and please rename the phandle to
clk_rmii_ref or something.

> +
> +};
> +
> +&adc1 {
> + vref-supply = <&touch_3v3_regulator>;
> + status = "okay";
> +};
> +
> +&can1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_flexcan1>;
> + status = "disabled";

No need to disable it here, it is disabled in the SoC DT.

> +};
> +
> +&can2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_flexcan2>;
> + status = "disabled";

Here too.

> +};
> +
> +&cpu0 {
> + arm-supply = <&reg_arm>;
> + soc-supply = <&reg_soc>;
> +};
> +
> +&fec1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_enet1>;
> + phy-mode = "rmii";
> + status = "disabled";

And here.

> +};
> +
> +&fec2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_enet2>;
> + phy-mode = "rmii";
> + status = "disabled";

And here.

> + mdio {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethphy0: ethernet-phy@1 {
> + compatible = "ethernet-phy-ieee802.3-c22";
> + micrel,rmii-reference-clock-select-25-mhz;
> + clocks = <&rmii_ref_clk>;
> + clock-names = "rmii-ref";

Do we need to specify the clock-names?

> + reg = <1>;
> + };
> +
> + ethphy1: ethernet-phy@3 {
> + compatible = "ethernet-phy-ieee802.3-c22";
> + micrel,rmii-reference-clock-select-25-mhz;
> + clocks = <&rmii_ref_clk>;
> + clock-names = "rmii-ref";
> + reg = <3>;
> + };
> + };
> +};
> +
> +&gpmi {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_gpmi_nand>;
> + status = "okay";
> +
> + partition@0 {
> + label = "spl";
> + reg = <0x00000000 0x00200000>;
> + };
> +
> + partition@200000 {
> + label = "uboot";
> + reg = <0x00200000 0x00200000>;
> + };
> +
> + partition@400000 {
> + label = "uboot-env";
> + reg = <0x00400000 0x00200000>;
> + };
> +
> + partition@600000 {
> + label = "kernel";
> + reg = <0x00600000 0x00800000>;
> + };
> +
> + partition@e00000 {
> + label = "rootfs";
> + reg = <0x00e00000 0x3f200000>;
> + };

Nope, partitions must be within a subnode. Please check
Documentation/devicetree/bindings/mtd/partition.txt.

> +};
> +
> +&i2c1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c1>;
> + status = "disabled";

Drop the status line.

> +};
> +
> +&i2c2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c2>;
> + status = "disabled";
Drop the status line.
> +};
> +
> +&pwm1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_pwm1>;
> + status = "disabled";
Drop the status line.
> +};
> +
> +&sai2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_sai2>;
> + assigned-clocks = <&clks IMX6UL_CLK_SAI2_SEL>,
> + <&clks IMX6UL_CLK_SAI2>;
> + assigned-clock-parents = <&clks IMX6UL_CLK_PLL4_AUDIO_DIV>;
> + assigned-clock-rates = <0>, <12288000>;
> + fsl,sai-mclk-direction-output;
> + status = "okay";
> +};
> +
> +&snvs_poweroff {
> + status = "okay";
> +};
> +
> +&snvs_rtc {
> + status = "disabled";
> +};
> +
> +&uart1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart1>;
> + status = "disabled";

No need.

> +};
> +
> +&uart2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart2>;
> + uart-has-rtscts;
> + status = "disabled";

No need.

> +};
> +
> +&uart3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart3>;
> + uart-has-rtscts;
> + status = "disabled";

No need.

> +};
> +
> +&usbotg1 {
> + disable-over-current;
> + status = "disabled";

No need.

> +};
> +
> +&usbotg2 {
> + disable-over-current;
> + status = "disabled";

No need.

> +};
> +
> +&usdhc1 {
> + pinctrl-names = "default", "state_100mhz", "state_200mhz";
> + pinctrl-0 = <&pinctrl_usdhc1>;
> + pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
> + pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
> + no-1-8-v;
> + keep-power-in-suspend;
> + vmmc-supply = <&reg_sd1_vmmc>;

I tought the highspeed modes using 1.8V signal levels.

> + non-removable;

Please specify the bus-with too. BTW. is it a SD-Card or an eMMC?

> + status = "okay";
> +};
> +
> +&usdhc2 {
> + status = "disabled";
> +};

Remove the whole node.

> +&wdog1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_wdog>;
> + fsl,ext-reset-output;
> +};
> +
> +&iomuxc {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_hog>;
> +
> + pinctrl_enet1: enet1grp {
> + fsl,pins = <
> + MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN 0x1b0b0
> + MX6UL_PAD_ENET1_RX_ER__ENET1_RX_ER 0x1b0b0
> + MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00 0x1b0b0
> + MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01 0x1b0b0
> + MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN 0x1b0b0
> + MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00 0x1b0b0
> + MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01 0x1b0b0
> + MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 0x4001b031
> + >;
> + };
> +
> + pinctrl_enet2: enet2grp {
> + fsl,pins = <
> + MX6UL_PAD_ENET2_RX_EN__ENET2_RX_EN 0x1b0b0
> + MX6UL_PAD_ENET2_RX_ER__ENET2_RX_ER 0x1b0b0
> + MX6UL_PAD_ENET2_RX_DATA0__ENET2_RDATA00 0x1b0b0
> + MX6UL_PAD_ENET2_RX_DATA1__ENET2_RDATA01 0x1b0b0
> + MX6UL_PAD_ENET2_TX_EN__ENET2_TX_EN 0x1b0b0
> + MX6UL_PAD_ENET2_TX_DATA0__ENET2_TDATA00 0x1b0b0
> + MX6UL_PAD_ENET2_TX_DATA1__ENET2_TDATA01 0x1b0b0
> + MX6UL_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 0x4001b031
> + MX6UL_PAD_GPIO1_IO07__ENET2_MDC 0x1b0b0
> + MX6UL_PAD_GPIO1_IO06__ENET2_MDIO 0x1b0b0
> + MX6UL_PAD_JTAG_MOD__GPIO1_IO10 0x1b0b0
> + >;
> + };
> +
> + pinctrl_flexcan1: flexcan1grp{
> + fsl,pins = <
> + MX6UL_PAD_LCD_DATA09__FLEXCAN1_RX 0x1b020
> + MX6UL_PAD_LCD_DATA08__FLEXCAN1_TX 0x1b020
> + >;
> + };
> +
> + pinctrl_flexcan2: flexcan2grp{
> + fsl,pins = <
> + MX6UL_PAD_UART2_RTS_B__FLEXCAN2_RX 0x1b020
> + MX6UL_PAD_UART2_CTS_B__FLEXCAN2_TX 0x1b020
> + >;
> + };
> +
> + pinctrl_gpio_leds: gpioledsgrp {
> + fsl,pins = <
> + MX6UL_PAD_CSI_HSYNC__GPIO4_IO20 0x1b0b0
> + MX6UL_PAD_GPIO1_IO00__GPIO1_IO00 0x17059
> + >;
> + };

You didn't reference that node.

> +
> + pinctrl_gpmi_nand: gpminandgrp {
> + fsl,pins = <
> + MX6UL_PAD_NAND_CLE__RAWNAND_CLE 0xb0b1
> + MX6UL_PAD_NAND_ALE__RAWNAND_ALE 0xb0b1
> + MX6UL_PAD_NAND_WP_B__RAWNAND_WP_B 0xb0b1
> + MX6UL_PAD_NAND_READY_B__RAWNAND_READY_B 0xb000
> + MX6UL_PAD_NAND_CE0_B__RAWNAND_CE0_B 0xb0b1
> + MX6UL_PAD_NAND_CE1_B__RAWNAND_CE1_B 0xb0b1
> + MX6UL_PAD_NAND_RE_B__RAWNAND_RE_B 0xb0b1
> + MX6UL_PAD_NAND_WE_B__RAWNAND_WE_B 0xb0b1
> + MX6UL_PAD_NAND_DATA00__RAWNAND_DATA00 0xb0b1
> + MX6UL_PAD_NAND_DATA01__RAWNAND_DATA01 0xb0b1
> + MX6UL_PAD_NAND_DATA02__RAWNAND_DATA02 0xb0b1
> + MX6UL_PAD_NAND_DATA03__RAWNAND_DATA03 0xb0b1
> + MX6UL_PAD_NAND_DATA04__RAWNAND_DATA04 0xb0b1
> + MX6UL_PAD_NAND_DATA05__RAWNAND_DATA05 0xb0b1
> + MX6UL_PAD_NAND_DATA06__RAWNAND_DATA06 0xb0b1
> + MX6UL_PAD_NAND_DATA07__RAWNAND_DATA07 0xb0b1
> + >;
> + };
> +
> + pinctrl_hog: hoggrp {
> + fsl,pins = <
> + MX6UL_PAD_GPIO1_IO03__OSC32K_32K_OUT 0x03029
> + >;
> + };
> +
> + pinctrl_i2c1: i2c1grp {
> + fsl,pins = <
> + MX6UL_PAD_UART4_TX_DATA__I2C1_SCL 0x4001b8b0
> + MX6UL_PAD_UART4_RX_DATA__I2C1_SDA 0x4001b8b0
> + >;
> + };
> +
> + pinctrl_i2c2: i2c2grp {
> + fsl,pins = <
> + MX6UL_PAD_UART5_TX_DATA__I2C2_SCL 0x4001b8b0
> + MX6UL_PAD_UART5_RX_DATA__I2C2_SDA 0x4001b8b0
> + >;
> + };
> +
> + pinctrl_lcdif: lcdif {
> + fsl,pins = <
> + MX6UL_PAD_LCD_DATA02__LCDIF_DATA02 0x79
> + MX6UL_PAD_LCD_DATA03__LCDIF_DATA03 0x79
> + MX6UL_PAD_LCD_DATA04__LCDIF_DATA04 0x79
> + MX6UL_PAD_LCD_DATA05__LCDIF_DATA05 0x79
> + MX6UL_PAD_LCD_DATA06__LCDIF_DATA06 0x79
> + MX6UL_PAD_LCD_DATA07__LCDIF_DATA07 0x79
> + MX6UL_PAD_LCD_DATA10__LCDIF_DATA10 0x79
> + MX6UL_PAD_LCD_DATA11__LCDIF_DATA11 0x79
> + MX6UL_PAD_LCD_DATA12__LCDIF_DATA12 0x79
> + MX6UL_PAD_LCD_DATA13__LCDIF_DATA13 0x79
> + MX6UL_PAD_LCD_DATA14__LCDIF_DATA14 0x79
> + MX6UL_PAD_LCD_DATA15__LCDIF_DATA15 0x79
> + MX6UL_PAD_LCD_DATA18__LCDIF_DATA18 0x79
> + MX6UL_PAD_LCD_DATA19__LCDIF_DATA19 0x79
> + MX6UL_PAD_LCD_DATA20__LCDIF_DATA20 0x79
> + MX6UL_PAD_LCD_DATA21__LCDIF_DATA21 0x79
> + MX6UL_PAD_LCD_DATA22__LCDIF_DATA22 0x79
> + MX6UL_PAD_LCD_DATA23__LCDIF_DATA23 0x79
> + MX6UL_PAD_LCD_CLK__LCDIF_CLK 0x79
> + MX6UL_PAD_LCD_ENABLE__LCDIF_ENABLE 0x79
> + >;
> + };

You didn't reference that.

> +
> + pinctrl_pwm1: pwm1grp {
> + fsl,pins = <
> + MX6UL_PAD_LCD_DATA00__PWM1_OUT 0x110b0
> + >;
> + };
> +
> + pinctrl_sai1: sai1grp {
> + fsl,pins = <
> + MX6UL_PAD_CSI_DATA05__SAI1_TX_BCLK 0x11088
> + MX6UL_PAD_CSI_DATA04__SAI1_TX_SYNC 0x17088
> + MX6UL_PAD_CSI_DATA06__SAI1_RX_DATA 0x11088
> + MX6UL_PAD_CSI_DATA07__SAI1_TX_DATA 0x11088
> + >;
> + };

You didn't reference that.

> + pinctrl_sai2: sai2grp {
> + fsl,pins = <
> + MX6UL_PAD_JTAG_TDI__SAI2_TX_BCLK 0x17088
> + MX6UL_PAD_JTAG_TDO__SAI2_TX_SYNC 0x17088
> + MX6UL_PAD_JTAG_TRST_B__SAI2_TX_DATA 0x11088
> + MX6UL_PAD_JTAG_TCK__SAI2_RX_DATA 0x11088
> + MX6UL_PAD_JTAG_TMS__SAI2_MCLK 0x17088
> + >;
> + };
> +
> + pinctrl_tsc: tscgrp {
> + fsl,pins = <
> + MX6UL_PAD_GPIO1_IO01__GPIO1_IO01 0xb0
> + MX6UL_PAD_GPIO1_IO02__GPIO1_IO02 0xb0
> + MX6UL_PAD_GPIO1_IO03__GPIO1_IO03 0xb0
> + MX6UL_PAD_GPIO1_IO04__GPIO1_IO04 0xb0
> + >;
> + };

You didn't reference that.

> + pinctrl_uart1: uart1grp {
> + fsl,pins = <
> + MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
> + MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX 0x1b0b1
> + >;
> + };
> +
> + pinctrl_uart2: uart2grp {
> + fsl,pins = <
> + MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX 0x1b0b1
> + MX6UL_PAD_UART2_RX_DATA__UART2_DCE_RX 0x1b0b1
> + MX6UL_PAD_UART2_CTS_B__UART2_DCE_CTS 0x1b0b1
> + MX6UL_PAD_UART2_RTS_B__UART2_DCE_RTS 0x1b0b1
> + >;
> + };
> +
> + pinctrl_uart3: uart3grp {
> + fsl,pins = <
> + MX6UL_PAD_UART3_TX_DATA__UART3_DCE_TX 0x1b0b1
> + MX6UL_PAD_UART3_RX_DATA__UART3_DCE_RX 0x1b0b1
> + MX6UL_PAD_UART3_CTS_B__UART3_DCE_CTS 0x1b0b1
> + MX6UL_PAD_UART3_RTS_B__UART3_DCE_RTS 0x1b0b1
> + >;
> + };
> +
> + pinctrl_usdhc1: usdhc1grp {
> + fsl,pins = <
> + MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x17059
> + MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x17059
> + MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x17059
> + MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x17059
> + MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x17059
> + MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x17059
> + MX6UL_PAD_CSI_VSYNC__GPIO4_IO19 0x1b0b1
> + >;
> + };
> +
> + pinctrl_usdhc1_100mhz: usdhc1grp100mhz {
> + fsl,pins = <
> + MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x170b9
> + MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x100b9
> + MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170b9
> + MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170b9
> + MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170b9
> + MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170b9
> + MX6UL_PAD_CSI_VSYNC__GPIO4_IO19 0x1b0b1
> + >;
> + };
> +
> + pinctrl_usdhc1_200mhz: usdhc1grp200mhz {
> + fsl,pins = <
> + MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x170f9
> + MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x100f9
> + MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170f9
> + MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170f9
> + MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170f9
> + MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170f9
> + MX6UL_PAD_CSI_VSYNC__GPIO4_IO19 0x1b0b1
> + >;
> + };
> +
> + pinctrl_wdog: wdoggrp {
> + fsl,pins = <
> + MX6UL_PAD_GPIO1_IO08__WDOG1_WDOG_B 0x78b0
> + >;
> + };
> +};
> --
> 2.7.4
>
>
>

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