From: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
This adds support for the Kontron Electronics i.MX8MP SMARC module
(which uses the OSM-S i.MX8MP SoM) on the Kontron SMARC eval carrier.
Signed-off-by: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
---
Changes for v3:
* Address Shawn's review comments (thanks!)
Changes for v2:
* Fix GPIO labels
* Add support for TPM chip on SMARC module
* Disable PWM in favor of GPIO5 on SMARC carrier
* Enable LCDIF node to make HDMI work
* Add support for GPIO expanders on SMARC carrier
* Remove SPI flash as its removable and should be in an overlay
* Add CAN regulators to fix transceiver enable
---
arch/arm64/boot/dts/freescale/Makefile | 1 +
.../imx8mp-kontron-smarc-eval-carrier.dts | 254 ++++++++++++++++
.../dts/freescale/imx8mp-kontron-smarc.dtsi | 280 ++++++++++++++++++
3 files changed, 535 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-kontron-smarc-eval-carrier.dts
create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-kontron-smarc.dtsi
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index e6f177e5fac26..250a7db037282 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -176,6 +176,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-kontron-bl-osm-s.dtb
imx8mp-kontron-dl-dtbs += imx8mp-kontron-bl-osm-s.dtb imx8mp-kontron-dl.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mp-kontron-dl.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-kontron-smarc-eval-carrier.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-msc-sm2s-ep1.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-navqp.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-kontron-smarc-eval-carrier.dts b/arch/arm64/boot/dts/freescale/imx8mp-kontron-smarc-eval-carrier.dts
new file mode 100644
index 0000000000000..2173a36ff6917
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-kontron-smarc-eval-carrier.dts
@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2024 Kontron Electronics GmbH
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/phy/phy-imx8-pcie.h>
+#include "imx8mp-kontron-smarc.dtsi"
+
+/ {
+ model = "Kontron SMARC Eval Carrier with i.MX8MP";
+ compatible = "kontron,imx8mp-smarc-eval-carrier", "kontron,imx8mp-smarc",
+ "kontron,imx8mp-osm-s", "fsl,imx8mp";
+
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm1 0 50000 0>;
+ brightness-levels = <0 100>;
+ num-interpolated-steps = <100>;
+ default-brightness-level = <100>;
+ enable-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>;
+ };
+
+ extcon_usbc: usbc {
+ compatible = "linux,extcon-usb-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb1_id>;
+ id-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,bitclock-master = <&codec_dai>;
+ simple-audio-card,format = "i2s";
+ simple-audio-card,frame-master = <&codec_dai>;
+ simple-audio-card,mclk-fs = <256>;
+ simple-audio-card,name = "imx8mp-wm8904";
+ simple-audio-card,routing =
+ "Headphone Jack", "HPOUTL",
+ "Headphone Jack", "HPOUTR",
+ "IN2L", "Line In Jack",
+ "IN2R", "Line In Jack",
+ "Headphone Jack", "MICBIAS",
+ "IN1L", "Headphone Jack";
+ simple-audio-card,widgets =
+ "Microphone", "Headphone Jack",
+ "Headphone", "Headphone Jack",
+ "Line", "Line In Jack";
+
+ codec_dai: simple-audio-card,codec {
+ clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI3_MCLK1>;
+ sound-dai = <&wm8904>;
+ };
+
+ simple-audio-card,cpu {
+ sound-dai = <&sai3>;
+ };
+ };
+
+ regulator_can0: can0-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "can0_en";
+ gpio = <&expander_pm_out 6 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ regulator_can1: can1-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "can1_en";
+ gpio = <&expander_pm_out 7 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+};
+
+&ecspi1 {
+ status = "okay";
+};
+
+&ecspi2 {
+ status = "okay";
+};
+
+&eqos {
+ status = "okay";
+};
+
+&fec {
+ status = "okay";
+};
+
+&flexcan1 {
+ xceiver-supply = <®ulator_can0>;
+ status = "okay";
+};
+
+&flexcan2 {
+ xceiver-supply = <®ulator_can1>;
+ status = "okay";
+};
+
+&hdmi_pvi {
+ status = "okay";
+};
+
+&hdmi_tx {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hdmi>;
+ ddc-i2c-bus = <&i2c3>;
+ status = "okay";
+};
+
+&hdmi_tx_phy {
+ status = "okay";
+};
+
+&i2c1 {
+ status = "okay";
+
+ expander_pm_out: io-expander@22 {
+ compatible = "nxp,pca9554";
+ reg = <0x22>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "EN_5V0_S0", "EN_3V3_S0", "EN_1V8_S0",
+ "EN_1V5_S0", "EN_12V0_PCIE", "EN_3V3_S5",
+ "CAN0_EN", "CAN1_EN";
+ };
+
+ expander_pm_in: io-expander@24 {
+ compatible = "nxp,pca9554";
+ reg = <0x24>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "PG_5V0_3V3_S0", "PG_5V0_3V3_S5", "PG_1V8_S0",
+ "PG_1V5_S0", "PG_BKLT_5V", "PG_BKLT_12V";
+ };
+};
+
+&i2c2 {
+ status = "okay";
+
+ wm8904: audio-codec@1a {
+ compatible = "wlf,wm8904";
+ reg = <0x1a>;
+ #sound-dai-cells = <0>;
+ clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI3_MCLK1>;
+ clock-names = "mclk";
+ AVDD-supply = <®_vdd_1v8>;
+ CPVDD-supply = <®_vdd_1v8>;
+ DBVDD-supply = <®_vdd_1v8>;
+ DCVDD-supply = <®_vdd_1v8>;
+ MICVDD-supply = <®_vdd_3v3>;
+ };
+
+ expander_audio: io-expander@20 {
+ compatible = "nxp,pca9554";
+ reg = <0x20>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "I2C_SEL_CODEC_LOOPBACK", "FPAH_PRESENCE",
+ "CODEC_OPTION_SW_I2S_HDA", "LINE_IN_JD",
+ "LINE_OUT_JD", "HEADPHONES_JD", "MIC_JD";
+ };
+};
+
+&i2c3 {
+ status = "okay";
+};
+
+&i2c4 {
+ status = "okay";
+};
+
+&lcdif3 {
+ status = "okay";
+};
+
+&pcie_phy {
+ fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_OUTPUT>;
+ fsl,clkreq-unsupported;
+ clocks = <&hsio_blk_ctrl>;
+ clock-names = "ref";
+ status = "okay";
+};
+
+&pcie {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcie>;
+ reset-gpio = <&gpio3 2 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&pwm1 {
+ status = "okay";
+};
+
+&sai3 {
+ assigned-clocks = <&clk IMX8MP_CLK_SAI3>;
+ assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <24576000>;
+ fsl,sai-mclk-direction-output;
+ status = "okay";
+};
+
+&uart1 {
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart4 {
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&usb_dwc3_0 {
+ adp-disable;
+ hnp-disable;
+ srp-disable;
+ dr_mode = "otg";
+ extcon = <&extcon_usbc>;
+ usb-role-switch;
+ status = "okay";
+};
+
+&usb_dwc3_1 {
+ status = "okay";
+};
+
+&usb3_0 {
+ status = "okay";
+};
+
+&usb3_1 {
+ status = "okay";
+};
+
+&usb3_phy0 {
+ vbus-supply = <®_usb1_vbus>;
+ status = "okay";
+};
+
+&usb3_phy1 {
+ status = "okay";
+};
+
+&usdhc2 {
+ vmmc-supply = <®_vdd_3v3>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-kontron-smarc.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-kontron-smarc.dtsi
new file mode 100644
index 0000000000000..1e831d9b8a935
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-kontron-smarc.dtsi
@@ -0,0 +1,280 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2024 Kontron Electronics GmbH
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include "imx8mp-kontron-osm-s.dtsi"
+
+/ {
+ model = "Kontron SMARC i.MX8MP";
+ compatible = "kontron,imx8mp-smarc", "kontron,imx8mp-osm-s", "fsl,imx8mp";
+
+ leds {
+ compatible = "gpio-leds";
+
+ led1 {
+ label = "led1";
+ gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+};
+
+&ecspi1 {
+ status = "okay";
+
+ tpm@0 {
+ compatible = "infineon,slb9670", "tcg,tpm_tis-spi";
+ reg = <0>;
+ spi-max-frequency = <18500000>;
+ };
+};
+
+&eqos { /* Second ethernet (OSM-S ETH_B) */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_eqos_rgmii>;
+ phy-mode = "rgmii-id";
+ phy-handle = <ðphy1>;
+
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy1: ethernet-phy@1 {
+ compatible = "ethernet-phy-id4f51.e91b";
+ reg = <1>;
+ pinctrl-0 = <&pinctrl_ethphy1>;
+ pinctrl-names = "default";
+ reset-assert-us = <10000>;
+ reset-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&fec { /* First ethernet (OSM-S ETH_A) */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet_rgmii>;
+ phy-connection-type = "rgmii-id";
+ phy-handle = <ðphy0>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy0: ethernet-phy@1 {
+ compatible = "ethernet-phy-id4f51.e91b";
+ reg = <1>;
+ pinctrl-0 = <&pinctrl_ethphy0>;
+ pinctrl-names = "default";
+ reset-assert-us = <10000>;
+ reset-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+/*
+ * Rename SoM signals according to SMARC module usage:
+ * GPIO_A_2 -> GPIO0
+ * GPIO_A_3 -> GPIO1
+ * GPIO_A_4 -> GPIO2
+ * GPIO_A_5 -> GPIO3
+ * USB_B_EN -> n.a.
+ * USB_B_ID -> n.a.
+ * USB_B_OC -> n.a.
+ */
+&gpio1 {
+ gpio-line-names = "GPIO_A_0", "GPIO_A_1", "", "",
+ "", "GPIO0", "GPIO1", "GPIO2",
+ "GPIO3", "", "USB_A_ID", "",
+ "USB_A_EN", "USB_A_OC","CAM_MCK", "",
+ "ETH_B_MDC", "ETH_B_MDIO", "ETH_B_TXD3", "ETH_B_TXD2",
+ "ETH_B_TXD1", "ETH_B_TXD0", "ETH_B_TX_EN", "ETH_B_TX_CLK",
+ "ETH_B_RX_DV", "ETH_B_RX_CLK", "ETH_B_RXD0", "ETH_B_RXD1",
+ "ETH_B_RXD2", "ETH_B_RXD3";
+};
+
+/*
+ * Rename SoM signals according to SMARC module usage:
+ * SDIO_A_CD -> SDIO_CD
+ * SDIO_A_CLK -> SDIO_CK
+ * SDIO_A_CMD -> SDIO_CMD
+ * SDIO_A_D0 -> SDIO_D0
+ * SDIO_A_D1 -> SDIO_D1
+ * SDIO_A_D2 -> SDIO_D2
+ * SDIO_A_D3 -> SDIO_D3
+ * SDIO_A_PWR_EN -> SDIO_PWR_EN
+ * SDIO_A_WP -> SDIO_WP
+ */
+&gpio2 {
+ gpio-line-names = "", "", "", "", "", "", "", "", "", "", "", "",
+ "SDIO_CD", "SDIO_CK", "SDIO_CMD", "SDIO_D0",
+ "SDIO_D1", "SDIO_D2", "SDIO_D3", "SDIO_PWR_EN",
+ "SDIO_WP";
+};
+
+/*
+ * Rename SoM signals according to SMARC module usage:
+ * PCIE_CLKREQ -> PCIE_A_CKREQ
+ * PCIE_A_PERST -> PCIE_A_RST
+ * SDIO_B_D5 -> n.a.
+ * SDIO_B_D6 -> n.a.
+ * SDIO_B_D7 -> n.a.
+ * SPI_A_WP -> n.a.
+ * SPI_A_HOLD -> n.a.
+ * UART_B_RTS -> SER2_RTS
+ * UART_B_CTS -> SER2_CTS
+ * SDIO_B_D0 -> GPIO8
+ * SDIO_B_D1 -> GPIO9
+ * SDIO_B_D2 -> GPIO10
+ * SDIO_B_D3 -> GPIO11
+ * SDIO_B_WP -> n.a.
+ * SDIO_B_D4 -> n.a.
+ * PCIE_SM_ALERT -> SMB_ALERT
+ * SDIO_B_CLK -> GPIO6
+ * SDIO_B_CMD -> GPIO7
+ * GPIO_B_0 -> LCD0_BKLT_EN
+ * GPIO_B_1 -> LCD1_BKLT_EN
+ * BOOT_SEL0 -> BOOT_SEL2
+ * SDIO_B_CD -> n.a.
+ * SDIO_B_PWR_EN -> n.a.
+ * HDMI_CEC -> n.a.
+ * SDIO_B_PWR_EN -> n.a.
+ */
+&gpio3 {
+ pinctrl-0 = <&pinctrl_gpio3>, <&pinctrl_gpio3_smarc>;
+ gpio-line-names = "PCIE_WAKE", "PCIE_A_CKREQ", "PCIE_A_RST", "",
+ "", "", "", "",
+ "SER2_RTS", "SER2_CTS", "GPIO8", "GPIO9",
+ "GPIO10", "GPIO11", "", "",
+ "SMB_ALERT", "GPIO6", "GPIO7", "LCD0_BKLT_EN",
+ "LCD1_BKLT_EN", "", "BOOT_SEL2", "BOOT_SEL1",
+ "", "", "", "",
+ "", "HDMI_HPD";
+};
+
+/*
+ * Rename SoM signals according to SMARC module usage:
+ * GPIO_B_5 -> n.a.
+ * GPIO_B_6 -> n.a.
+ * GPIO_B_7 -> n.a.
+ * GPIO_C_0 -> LED
+ * GPIO_B_3 -> ETH2_INT
+ * GPIO_B_4 -> USB_HUB_RST
+ * GPIO_B_2 -> ETH1_INT
+ * GPIO_A_6 -> GPIO4
+ * CAN_A_TX -> CAN0_TX
+ * UART_A_CTS -> SER0_CTS
+ * UART_A_RTS -> SER0_RTS
+ * CAN_A_RX -> CAN0_RX
+ * CAN_B_TX -> CAN1_TX
+ * CAN_B_RX -> CAN1_RX
+ * GPIO_A_7 -> TEST
+ * I2S_A_DATA_IN -> I2S0_SDIN
+ * I2S_LRCLK -> I2S0_LRCK
+ */
+&gpio4 {
+ gpio-line-names = "", "", "", "LED",
+ "ETH_A_MDC", "ETH_A_MDIO", "ETH_A_RXD0", "ETH_A_RXD1",
+ "ETH_A_RXD2", "ETH_A_RXD3", "ETH_A_RX_DV", "ETH_A_RX_CLK",
+ "ETH_A_TXD0", "ETH_A_TXD1", "ETH_A_TXD2", "ETH_A_TXD3",
+ "ETH_A_TX_EN", "ETH_A_TX_CLK", "ETH2_INT", "USB_HUB_RST",
+ "ETH1_INT", "GPIO4", "CAN0_TX", "SER0_CTS",
+ "SER0_RTS", "CAN0_RX", "CAN1_TX", "CAN1_RX",
+ "TEST", "CARRIER_PWR_EN", "I2S0_SDIN", "I2S0_LRCK";
+};
+
+/*
+ * Rename SoM signals according to SMARC module usage:
+ * I2S_BITCLK -> I2S0_CK
+ * I2S_A_DATA_OUT -> I2S0_SDOUT
+ * I2S_MCLK -> AUDIO_MCK
+ * PWM_2 -> GPIO5
+ * PWM_1 -> LCD1_BKLT_PWM
+ * PWM_0 -> LCD0_BKLT_PWM
+ * SPI_A_SCK -> SPI0_CK
+ * SPI_A_SDO -> SPI0_DO
+ * SPI_A_SDI -> SPI0_DIN
+ * SPI_A_CS0 -> SPI0_CS0
+ * SPI_B_SCK -> ESPI_CK
+ * SPI_B_SDO -> ESPI_IO_0
+ * SPI_B_SDI -> ESPI_IO_1
+ * SPI_B_CS0 -> ESPI_CS0
+ * I2C_A_SCL -> I2C_PM_CK
+ * I2C_A_SDA -> I2C_PM_DAT
+ * I2C_B_SCL -> I2C_GP_CK
+ * I2C_B_SDA -> I2C_GP_DAT
+ * PCIE_SMCLK -> HDMI_CTRL_CK
+ * PCIE_SMDAT -> HDMI_CTRL_DAT
+ * I2C_CAM_SCL -> I2C_CAM1_CK
+ * I2C_CAM_SDA -> I2C_CAM1_DAT
+ * UART_A_RX -> SER0_RX
+ * UART_A_TX -> SER0_TX
+ * UART_C_RX -> SER3_RX
+ * UART_C_TX -> SER3_TX
+ * UART_CON_RX -> SER1_RX
+ * UART_CON_TX -> SER1_TX
+ * UART_B_RX -> SER2_RX
+ * UART_B_TX -> SER2_TX
+ */
+&gpio5 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio5_smarc>;
+ gpio-line-names = "I2S0_CK", "I2S0_SDOUT", "AUDIO_MCK", "GPIO5",
+ "LCD1_BKLT_PWM", "LCD0_BKLT_PWM", "SPI0_CK", "SPI0_DO",
+ "SPI0_DIN", "SPI0_CS0", "ESPI_CK", "ESPI_IO_0",
+ "ESPI_IO_1", "ESPI_CS0", "I2C_PM_CK", "I2C_PM_DAT",
+ "I2C_GP_CK", "I2C_GP_DAT", "HDMI_CTRL_CK", "HDMI_CTRL_DAT",
+ "I2C_CAM1_CK", "I2C_CAM1_DAT", "SER0_RX", "SER0_TX",
+ "SER3_RX", "SER3_TX", "SER1_RX", "SER1_TX",
+ "SER2_RX", "SER2_TX";
+};
+
+&usb_dwc3_1 {
+ dr_mode = "host";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb-hub@1 {
+ compatible = "usb424,2514";
+ reg = <1>;
+ reset-gpios = <&gpio4 19 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&usb3_1 {
+ fsl,disable-port-power-control;
+ fsl,permanently-attached;
+};
+
+&iomuxc {
+ pinctrl_ethphy0: ethphy0grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_GPIO1_IO01__GPIO1_IO01 0x46
+ >;
+ };
+
+ pinctrl_ethphy1: ethphy1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_GPIO1_IO00__GPIO1_IO00 0x46
+ >;
+ };
+
+ pinctrl_gpio3_smarc: gpio3smarcgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_NAND_DATA04__GPIO3_IO10 0x1d0 /* SMARC GPIO8 */
+ MX8MP_IOMUXC_NAND_DATA05__GPIO3_IO11 0x1d0 /* SMARC GPIO9 */
+ MX8MP_IOMUXC_NAND_DATA06__GPIO3_IO12 0x1d0 /* SMARC GPIO10 */
+ MX8MP_IOMUXC_NAND_DATA07__GPIO3_IO13 0x1d0 /* SMARC GPIO11 */
+ MX8MP_IOMUXC_NAND_WE_B__GPIO3_IO17 0x190 /* SMARC GPIO6 */
+ MX8MP_IOMUXC_NAND_WP_B__GPIO3_IO18 0x1d0 /* SMARC GPIO7 */
+ >;
+ };
+
+ pinctrl_gpio5_smarc: gpio5smarcgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SPDIF_RX__GPIO5_IO04 0x1d0 /* SMARC GPIO5 */
+ >;
+ };
+};
--
2.46.0
