Re: [PATCH v4 4/6] ARM: dts: imx6qdl: Add Variscite DART-MX6 SoM support

From: Neil Armstrong
Date: Fri Dec 01 2017 - 03:54:33 EST

On 30/11/2017 01:39, Shawn Guo wrote:
> On Wed, Nov 29, 2017 at 11:20:55AM +0100, Neil Armstrong wrote:
>> This patch adds support for the Variscite DART-MX6 SoM with :
>> - i.MX6 Quad or Dual Lite SoC
>> - 1Gb/2Gb LPDDR2
>> - 4-64 GB eMMC
>> - Camera Interface
>> - HDMI+CEC interface
>> - LVDS / DSI / Parallel RGB interfaces
>> - Ethernet RGMII interface
>> - On-SoM Wi-Fi/Bluetooth with WiLink wl1835 SDIO Module
>> - SD/MMC/SDIO interface
>> - USB Host + USB OTG interface
>> - I2C interfaces
>> - SPI interfaces
>> - PCI-Express 2.0 interface
>> - on-SoM Audio Codec with HP/Line-In interfaces + DMIC interface
>> - Digital Audio interface
>> - S/PDIF interface
>>
>> Product website : http://www.variscite.com/products/system-on-module-som/cortex-a9/dart-mx6-cpu-freescale-imx6
>>
>> Support is handled with a SoM-centric dtsi exporting the default interfaces
>> along the default pinmuxing to be enabled by the board dts file.
>>
>> Only board-independent devices like WiFi, eMMC or PMIC are enabled in the dtsi.
>>
>> Reviewed-by: Fabio Estevam <fabio.estevam@xxxxxxx>
>> Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
>
> Looks pretty good. Only a couple of minor comments.
>
>> ---
>> arch/arm/boot/dts/imx6qdl-var-dart.dtsi | 504 ++++++++++++++++++++++++++++++++
>> 1 file changed, 504 insertions(+)
>> create mode 100644 arch/arm/boot/dts/imx6qdl-var-dart.dtsi
>>
>> diff --git a/arch/arm/boot/dts/imx6qdl-var-dart.dtsi b/arch/arm/boot/dts/imx6qdl-var-dart.dtsi
>> new file mode 100644
>> index 0000000..fd2520b
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/imx6qdl-var-dart.dtsi
>> @@ -0,0 +1,504 @@
>> +/*
>> + * Support for Variscite DART-MX6 Module
>> + *
>> + * Copyright 2017 BayLibre, SAS
>> + * Author: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
>> + *
>> + * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> + */
>> +
>> +#include <dt-bindings/gpio/gpio.h>
>> +#include <dt-bindings/sound/fsl-imx-audmux.h>
>> +
>> +/ {
>> + memory {
>> + reg = <0x10000000 0x40000000>;
>> + };
>> +
>> + reg_3p3v: regulator-3p3v {
>> + compatible = "regulator-fixed";
>> + regulator-name = "3P3V";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + regulator-always-on;
>> + };
>> +
>> + reg_wl18xx_vmmc: regulator-wl18xx {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vwl1807";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + gpio = <&gpio7 8 GPIO_ACTIVE_HIGH>;
>> + enable-active-high;
>> + startup-delay-us = <70000>;
>> + };
>> +};
>> +
>> +&audmux {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_audmux>;
>> + status = "okay";
>> +
>> + ssi2 {
>> + fsl,audmux-port = <1>;
>> + fsl,port-config = <
>> + (IMX_AUDMUX_V2_PTCR_SYN |
>> + IMX_AUDMUX_V2_PTCR_TFSDIR |
>> + IMX_AUDMUX_V2_PTCR_TFSEL(2) |
>> + IMX_AUDMUX_V2_PTCR_TCLKDIR |
>> + IMX_AUDMUX_V2_PTCR_TCSEL(2))
>> + IMX_AUDMUX_V2_PDCR_RXDSEL(2)
>> + >;
>> + };
>> +
>> + aud3 {
>> + fsl,audmux-port = <2>;
>> + fsl,port-config = <
>> + IMX_AUDMUX_V2_PTCR_SYN
>> + IMX_AUDMUX_V2_PDCR_RXDSEL(1)
>> + >;
>> + };
>> +};
>> +
>> +&can1 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_flexcan1>;
>> + status = "disabled";
>> +};
>> +
>> +&can2 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_flexcan2>;
>> + status = "disabled";
>> +};
>> +
>> +&ecspi1 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_ecspi1>;
>> + status = "disabled";
>> +};
>> +
>> +&fec {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_enet>;
>> + phy-mode = "rgmii";
>> + status = "disabled";
>> +};
>> +
>> +&hdmi {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_hdmicec>;
>> + ddc-i2c-bus = <&i2c1>;
>> + status = "disabled";
>> +};
>> +
>> +&i2c1 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_i2c1>;
>> + status = "disabled";
>> +};
>> +
>> +&i2c2 {
>> + clock-frequency = <100000>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_i2c2>;
>> + status = "okay";
>> +
>> + pmic@08 {
>
> Please drop the leading zero in unit-address.

Fixed

>
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_pmic>;
>> + compatible = "fsl,pfuze100";
>> + reg = <0x08>;
>> +
>> + regulators {
>> + sw1a_reg: sw1ab {
>> + regulator-min-microvolt = <300000>;
>> + regulator-max-microvolt = <1875000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + regulator-ramp-delay = <6250>;
>> + };
>> +
>> + sw1c_reg: sw1c {
>> + regulator-min-microvolt = <300000>;
>> + regulator-max-microvolt = <1875000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + regulator-ramp-delay = <6250>;
>> + };
>> +
>> + sw2_reg: sw2 {
>> + regulator-min-microvolt = <800000>;
>> + regulator-max-microvolt = <3300000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + sw3a_reg: sw3a {
>> + regulator-min-microvolt = <800000>;
>> + regulator-max-microvolt = <3950000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + sw3b_reg: sw3b {
>> + regulator-min-microvolt = <800000>;
>> + regulator-max-microvolt = <3950000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + sw4_reg: sw4 {
>> + regulator-min-microvolt = <800000>;
>> + regulator-max-microvolt = <3950000>;
>> + };
>> +
>> + snvs_reg: vsnvs {
>> + regulator-min-microvolt = <1200000>;
>> + regulator-max-microvolt = <3000000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + vref_reg: vrefddr {
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + vgen6_reg: vgen6 {
>> + regulator-min-microvolt = <2800000>;
>> + regulator-max-microvolt = <2800000>;
>> + regulator-always-on;
>> + regulator-boot-on;
>> + };
>> + };
>> + };
>> +
>> + codec: codec@1b {
>
> Label should be something specific, maybe tlv320aic3106?

Changed to tlv320aic3106 and in the dts file

>
>> + compatible = "ti,tlv320aic3106";
>> + reg = <0x1b>;
>> + #sound-dai-cells = <0>;
>> + DRVDD-supply = <&reg_3p3v>;
>> + AVDD-supply = <&reg_3p3v>;
>> + IOVDD-supply = <&reg_3p3v>;
>> + DVDD-supply = <&reg_3p3v>;
>> + ai3x-ocmv = <0>;
>> + gpio-reset = <&gpio5 5 GPIO_ACTIVE_LOW>;
>> + };
>> +};
>> +
>> +&i2c3 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_i2c3>;
>> + status = "disabled";
>> +};
>> +
>> +&iomuxc {
>> + pinctrl_audmux: audmux {
>> + fsl,pins = <
>> + MX6QDL_PAD_CSI0_DAT7__AUD3_RXD 0x130b0
>> + MX6QDL_PAD_CSI0_DAT4__AUD3_TXC 0x130b0
>> + MX6QDL_PAD_CSI0_DAT5__AUD3_TXD 0x110b0
>> + MX6QDL_PAD_CSI0_DAT6__AUD3_TXFS 0x130b0
>> + /* Audio Clock */
>> + MX6QDL_PAD_GPIO_0__CCM_CLKO1 0x130b0
>> + >;
>> + };
>> +
>> + pinctrl_bt: bt {
>> + fsl,pins = <
>> + /* Bluetooth enable */
>> + MX6QDL_PAD_SD3_DAT6__GPIO6_IO18 0x1b0b1
>> + /* Bluetooth Slow Clock */
>> + MX6QDL_PAD_ENET_RXD0__OSC32K_32K_OUT 0x000b0
>> + >;
>> + };
>> +
>> + pinctrl_ecspi1: ecspi1grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_KEY_COL1__ECSPI1_MISO 0x100b1
>> + MX6QDL_PAD_KEY_ROW0__ECSPI1_MOSI 0x100b1
>> + MX6QDL_PAD_KEY_COL0__ECSPI1_SCLK 0x100b1
>> + /* SPI1 CS0 */
>> + MX6QDL_PAD_KEY_ROW1__GPIO4_IO09 0x1b0b0
>> + /* SPI1 CS1 */
>> + MX6QDL_PAD_KEY_COL2__GPIO4_IO10 0x1b0b0
>> + >;
>> + };
>> +
>> + pinctrl_enet: enetgrp {
>> + fsl,pins = <
>> + MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x100b0
>> + MX6QDL_PAD_ENET_MDC__ENET_MDC 0x100b0
>> + MX6QDL_PAD_RGMII_TXC__RGMII_TXC 0x10030
>> + MX6QDL_PAD_RGMII_TD0__RGMII_TD0 0x10030
>> + MX6QDL_PAD_RGMII_TD1__RGMII_TD1 0x10030
>> + MX6QDL_PAD_RGMII_TD2__RGMII_TD2 0x10030
>> + MX6QDL_PAD_RGMII_TD3__RGMII_TD3 0x10030
>> + MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL 0x10030
>> + MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK 0x100b0
>> + MX6QDL_PAD_RGMII_RXC__RGMII_RXC 0x1b030
>> + MX6QDL_PAD_RGMII_RD0__RGMII_RD0 0x1b030
>> + MX6QDL_PAD_RGMII_RD1__RGMII_RD1 0x1b030
>> + MX6QDL_PAD_RGMII_RD2__RGMII_RD2 0x1b030
>> + MX6QDL_PAD_RGMII_RD3__RGMII_RD3 0x1b030
>> + MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1b030
>> + >;
>> + };
>> +
>> + pinctrl_flexcan1: flexcan1grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_GPIO_7__FLEXCAN1_TX 0x1b0b0
>> + MX6QDL_PAD_GPIO_8__FLEXCAN1_RX 0x1b0b0
>> + >;
>> + };
>> +
>> + pinctrl_flexcan2: flexcan2grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_KEY_COL4__FLEXCAN2_TX 0x1b0b0
>> + MX6QDL_PAD_KEY_ROW4__FLEXCAN2_RX 0x1b0b0
>> + >;
>> + };
>> +
>> + pinctrl_hdmicec: hdmicecgrp {
>> + fsl,pins = <
>> + MX6QDL_PAD_KEY_ROW2__HDMI_TX_CEC_LINE 0x1f8b0
>> + >;
>> + };
>> +
>> + pinctrl_i2c1: i2c1grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_CSI0_DAT8__I2C1_SDA 0x4001b8b1
>> + MX6QDL_PAD_CSI0_DAT9__I2C1_SCL 0x4001b8b1
>> + >;
>> + };
>> +
>> + pinctrl_i2c2: i2c2grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1
>> + MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1
>> + >;
>> + };
>> +
>> + pinctrl_i2c3: i2c3grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001b8b1
>> + MX6QDL_PAD_GPIO_16__I2C3_SDA 0x4001b8b1
>> + >;
>> + };
>> +
>> + pinctrl_pmic: pmicgrp {
>> + fsl,pins = <
>> + /* PMIC INT */
>> + MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x1b0b1
>> + >;
>> + };
>> +
>> + pinctrl_pwm2: pwm2grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_DISP0_DAT9__PWM2_OUT 0x1b0b1
>> + >;
>> + };
>> +
>> + pinctrl_uart1: uart1grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA 0x1b0b1
>> + MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA 0x1b0b1
>> + >;
>> + };
>> +
>> + pinctrl_uart2: uart2grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_SD3_DAT4__UART2_RX_DATA 0x1b0b1
>> + MX6QDL_PAD_SD3_DAT5__UART2_TX_DATA 0x1b0b1
>> + MX6QDL_PAD_SD4_DAT6__UART2_CTS_B 0x1b0b1
>> + MX6QDL_PAD_SD4_DAT5__UART2_RTS_B 0x1b0b1
>> + >;
>> + };
>> +
>> + pinctrl_uart3: uart3grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_EIM_D25__UART3_RX_DATA 0x1b0b1
>> + MX6QDL_PAD_EIM_D24__UART3_TX_DATA 0x1b0b1
>> + MX6QDL_PAD_EIM_D23__UART3_CTS_B 0x1b0b1
>> + MX6QDL_PAD_EIM_EB3__UART3_RTS_B 0x1b0b1
>> + >;
>> + };
>> +
>> + pinctrl_usbotg: usbotggrp {
>> + fsl,pins = <
>> + MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID 0x17059
>> + >;
>> + };
>> +
>> + pinctrl_usdhc1: usdhc1grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_SD1_CMD__SD1_CMD 0x17059
>> + MX6QDL_PAD_SD1_CLK__SD1_CLK 0x10059
>> + MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x17059
>> + MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x17059
>> + MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x17059
>> + MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x17059
>> + /* WL_EN */
>> + MX6QDL_PAD_SD3_DAT7__GPIO6_IO17 0x17071
>> + /* WL_IRQ */
>> + MX6QDL_PAD_SD3_RST__GPIO7_IO08 0x17071
>> + >;
>> + };
>> +
>> + pinctrl_usdhc1_100mhz: usdhc1grp100mhz {
>> + fsl,pins = <
>> + MX6QDL_PAD_SD1_CMD__SD1_CMD 0x170B9
>> + MX6QDL_PAD_SD1_CLK__SD1_CLK 0x100B9
>> + MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x170B9
>> + MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x170B9
>> + MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x170B9
>> + MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x170B9
>> + >;
>> + };
>> +
>> + pinctrl_usdhc1_200mhz: usdhc1grp200mhz {
>> + fsl,pins = <
>> + MX6QDL_PAD_SD1_CMD__SD1_CMD 0x170F9
>> + MX6QDL_PAD_SD1_CLK__SD1_CLK 0x100F9
>> + MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x170F9
>> + MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x170F9
>> + MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x170F9
>> + MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x170F9
>> + >;
>> + };
>> +
>> + pinctrl_usdhc2: usdhc2grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_SD2_CMD__SD2_CMD 0x17059
>> + MX6QDL_PAD_SD2_CLK__SD2_CLK 0x10059
>> + MX6QDL_PAD_SD2_DAT0__SD2_DATA0 0x17059
>> + MX6QDL_PAD_SD2_DAT1__SD2_DATA1 0x17059
>> + MX6QDL_PAD_SD2_DAT2__SD2_DATA2 0x17059
>> + MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x17059
>> + >;
>> + };
>> +
>> + pinctrl_usdhc3: usdhc3grp {
>> + fsl,pins = <
>> + MX6QDL_PAD_SD3_CMD__SD3_CMD 0x17059
>> + MX6QDL_PAD_SD3_CLK__SD3_CLK 0x10059
>> + MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17059
>> + MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
>> + MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
>> + MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
>> + >;
>> + };
>> +};
>> +
>> +&pcie {
>> + fsl,tx-swing-full = <103>;
>> + fsl,tx-swing-low = <103>;
>> + reset-gpio = <&gpio4 11 GPIO_ACTIVE_LOW>;
>> + status = "disabled";
>> +};
>> +
>> +&pwm2 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_pwm2>;
>> + status = "disabled";
>> +};
>> +
>> +&reg_arm {
>> + vin-supply = <&sw1a_reg>;
>> +};
>> +
>> +&reg_pu {
>> + vin-supply = <&sw1c_reg>;
>> +};
>> +
>> +&reg_soc {
>> + vin-supply = <&sw1c_reg>;
>> +};
>> +
>> +&uart1 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_uart1>;
>> + status = "disabled";
>> +};
>> +
>> +&uart2 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_uart2 &pinctrl_bt>;
>> + uart-has-rtscts;
>> + status = "okay";
>> +
>> + bluetooth {
>> + compatible = "ti,wl1835-st";
>> + enable-gpios = <&gpio6 18 GPIO_ACTIVE_HIGH>;
>> + };
>> +};
>> +
>> +&uart3 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_uart3>;
>> + uart-has-rtscts;
>> + status = "disabled";
>> +};
>> +
>> +&usbh1 {
>> + status = "disabled";
>> +};
>> +
>> +&usbotg {
>> + vbus-supply = <&reg_usb_otg_vbus>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_usbotg>;
>> + disable-over-current;
>> + status = "disabled";
>> +};
>> +
>> +&usdhc1 {
>> + pinctrl-names = "default", "state_100mhz", "state_200mhz";
>> + pinctrl-0 = <&pinctrl_usdhc1>;
>> + pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
>> + pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
>> + bus-width = <4>;
>> + vmmc-supply = <&reg_wl18xx_vmmc>;
>> + non-removable;
>> + wakeup-source;
>> + keep-power-in-suspend;
>> + cap-power-off-card;
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + status = "okay";
>> +
>> + wlcore: wlcore@2 {
>> + compatible = "ti,wl1835";
>> + reg = <2>;
>> + interrupt-parent = <&gpio6>;
>> + interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
>> + ref-clock-frequency = <38400000>;
>> + };
>> +};
>> +
>> +&usdhc2 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_usdhc2>;
>> + no-1-8-v;
>> + keep-power-in-suspend;
>> + wakeup-source;
>> + status = "disabled";
>> +};
>> +
>> +&usdhc3 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_usdhc3>;
>> + non-removable;
>> + keep-power-in-suspend;
>> + wakeup-source;
>> + status = "okay";
>> +};
>> +
>> +&ssi2 {
>> + status = "okay";
>> +};
>> +
>> +&snvs_poweroff {
>> + status = "okay";
>> +};
>
> The last two nodes break the alphabetical order.

Fixed

>
> Shawn
>> --
>> 2.7.4
>>