imx: imx6ul: Add support for Kontron Electronics SL/BL i.MX6UL/ULL boards (N63xx/N64xx)
This adds support for i.MX6UL/ULL-based evaluation kits with SoMs by
Kontron Electronics GmbH.
Currently there are the following SoM flavors (SoM-Line):
* N6310: SOM with i.MX6UL-2, 256MB RAM, 256MB SPI NAND
* N6311: SOM with i.MX6UL-2, 512MB RAM, 512MB SPI NAND
* N6411: SOM with i.MX6ULL, 512MB RAM, 512MB SPI NAND
And the according evaluation boards (Board-Line):
* N6310-S: Baseboard with SOM N6310, eMMC, display (optional), ...
* N6311-S: Baseboard with SOM N6311, eMMC, display (optional), ...
* N6411-S: Baseboard with SOM N6411, eMMC, display (optional), ...
Currently U-Boot describes i.MX6UL and i.MX6ULL through separate config
options at compile-time. Though the differences are so minor, that for
the scope of these SoMs we just use a single defconfig that is compatible
with both SoCs.
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/dts/imx6ul-kontron-n6x1x-s.dtsi b/arch/arm/dts/imx6ul-kontron-n6x1x-s.dtsi
new file mode 100644
index 0000000..4682a79
--- /dev/null
+++ b/arch/arm/dts/imx6ul-kontron-n6x1x-s.dtsi
@@ -0,0 +1,420 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ * Copyright (c) 2019 Krzysztof Kozlowski <krzk@kernel.org>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ gpio-leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_leds>;
+
+ led1 {
+ label = "debug-led1";
+ gpios = <&gpio1 30 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ linux,default-trigger = "heartbeat";
+ };
+
+ led2 {
+ label = "debug-led2";
+ gpios = <&gpio5 3 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+
+ led3 {
+ label = "debug-led3";
+ gpios = <&gpio5 2 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+ };
+
+ pwm-beeper {
+ compatible = "pwm-beeper";
+ pwms = <&pwm8 0 5000>;
+ };
+
+ reg_3v3: regulator-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ reg_5v: regulator-5v {
+ compatible = "regulator-fixed";
+ regulator-name = "5v";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ reg_usb_otg1_vbus: regulator-usb-otg1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_otg1_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio1 4 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ reg_vref_adc: regulator-vref-adc {
+ compatible = "regulator-fixed";
+ regulator-name = "vref-adc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};
+
+&adc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adc1>;
+ num-channels = <3>;
+ vref-supply = <®_vref_adc>;
+ status = "okay";
+};
+
+&can2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan2>;
+ status = "okay";
+};
+
+&ecspi1 {
+ cs-gpios = <&gpio4 26 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi1>;
+ status = "okay";
+
+ eeprom@0 {
+ compatible = "anvo,anv32e61w", "atmel,at25";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ spi-cpha;
+ spi-cpol;
+ pagesize = <1>;
+ size = <8192>;
+ address-width = <16>;
+ };
+};
+
+&fec1 {
+ pinctrl-0 = <&pinctrl_enet1>;
+ /delete-node/ mdio;
+};
+
+&fec2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet2 &pinctrl_enet2_mdio>;
+ phy-mode = "rmii";
+ phy-handle = <ðphy2>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy1: ethernet-phy@1 {
+ reg = <1>;
+ micrel,led-mode = <0>;
+ clocks = <&clks IMX6UL_CLK_ENET_REF>;
+ clock-names = "rmii-ref";
+ };
+
+ ethphy2: ethernet-phy@2 {
+ reg = <2>;
+ micrel,led-mode = <0>;
+ clocks = <&clks IMX6UL_CLK_ENET2_REF>;
+ clock-names = "rmii-ref";
+ };
+ };
+};
+
+&i2c1 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ status = "okay";
+};
+
+&i2c4 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c4>;
+ status = "okay";
+
+ rtc@32 {
+ compatible = "epson,rx8900";
+ reg = <0x32>;
+ };
+};
+
+&pwm8 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm8>;
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ status = "okay";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ linux,rs485-enabled-at-boot-time;
+ rs485-rx-during-tx;
+ rs485-rts-active-low;
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3>;
+ fsl,uart-has-rtscts;
+ status = "okay";
+};
+
+&uart4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart4>;
+ status = "okay";
+};
+
+&usbotg1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbotg1>;
+ dr_mode = "otg";
+ srp-disable;
+ hnp-disable;
+ adp-disable;
+ over-current-active-low;
+ vbus-supply = <®_usb_otg1_vbus>;
+ status = "okay";
+};
+
+&usbotg2 {
+ dr_mode = "host";
+ disable-over-current;
+ vbus-supply = <®_5v>;
+ status = "okay";
+};
+
+&usdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
+ keep-power-in-suspend;
+ wakeup-source;
+ vmmc-supply = <®_3v3>;
+ voltage-ranges = <3300 3300>;
+ bus-width = <4>;
+ no-1-8-v;
+ status = "okay";
+};
+
+&usdhc2 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc2>;
+ pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+ non-removable;
+ keep-power-in-suspend;
+ wakeup-source;
+ vmmc-supply = <®_3v3>;
+ voltage-ranges = <3300 3300>;
+ bus-width = <4>;
+ no-1-8-v;
+ status = "okay";
+};
+
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ fsl,ext-reset-output;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl-0 = <&pinctrl_reset_out &pinctrl_gpio>;
+
+ pinctrl_adc1: adc1grp {
+ fsl,pins = <
+ MX6UL_PAD_GPIO1_IO02__GPIO1_IO02 0xb0
+ MX6UL_PAD_GPIO1_IO03__GPIO1_IO03 0xb0
+ MX6UL_PAD_GPIO1_IO08__GPIO1_IO08 0xb0
+ >;
+ };
+
+ pinctrl_ecspi1: ecspi1grp {
+ fsl,pins = <
+ MX6UL_PAD_CSI_DATA07__ECSPI1_MISO 0x100b1
+ MX6UL_PAD_CSI_DATA06__ECSPI1_MOSI 0x100b1
+ MX6UL_PAD_CSI_DATA04__ECSPI1_SCLK 0x100b1
+ MX6UL_PAD_CSI_DATA05__GPIO4_IO26 0x100b1 /* ECSPI1-CS1 */
+ >;
+ };
+
+ 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 0x4001b009
+ >;
+ };
+
+ pinctrl_enet2_mdio: enet2mdiogrp {
+ fsl,pins = <
+ MX6UL_PAD_GPIO1_IO07__ENET2_MDC 0x1b0b0
+ MX6UL_PAD_GPIO1_IO06__ENET2_MDIO 0x1b0b0
+ >;
+ };
+
+ pinctrl_flexcan2: flexcan2grp{
+ fsl,pins = <
+ MX6UL_PAD_UART2_RTS_B__FLEXCAN2_RX 0x1b020
+ MX6UL_PAD_UART2_CTS_B__FLEXCAN2_TX 0x1b020
+ >;
+ };
+
+ pinctrl_gpio: gpiogrp {
+ fsl,pins = <
+ MX6UL_PAD_SNVS_TAMPER5__GPIO5_IO05 0x1b0b0 /* DOUT1 */
+ MX6UL_PAD_SNVS_TAMPER4__GPIO5_IO04 0x1b0b0 /* DIN1 */
+ MX6UL_PAD_SNVS_TAMPER1__GPIO5_IO01 0x1b0b0 /* DOUT2 */
+ MX6UL_PAD_SNVS_TAMPER0__GPIO5_IO00 0x1b0b0 /* DIN2 */
+ >;
+ };
+
+ pinctrl_gpio_leds: gpioledsgrp {
+ fsl,pins = <
+ MX6UL_PAD_UART5_TX_DATA__GPIO1_IO30 0x1b0b0 /* LED H14 */
+ MX6UL_PAD_SNVS_TAMPER3__GPIO5_IO03 0x1b0b0 /* LED H15 */
+ MX6UL_PAD_SNVS_TAMPER2__GPIO5_IO02 0x1b0b0 /* LED H16 */
+ >;
+ };
+
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX6UL_PAD_CSI_PIXCLK__I2C1_SCL 0x4001b8b0
+ MX6UL_PAD_CSI_MCLK__I2C1_SDA 0x4001b8b0
+ >;
+ };
+
+ pinctrl_i2c4: i2c4grp {
+ fsl,pins = <
+ MX6UL_PAD_UART2_TX_DATA__I2C4_SCL 0x4001f8b0
+ MX6UL_PAD_UART2_RX_DATA__I2C4_SDA 0x4001f8b0
+ >;
+ };
+
+ pinctrl_pwm8: pwm8grp {
+ fsl,pins = <
+ MX6UL_PAD_CSI_HSYNC__PWM8_OUT 0x110b0
+ >;
+ };
+
+ 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_NAND_DATA04__UART2_DCE_TX 0x1b0b1
+ MX6UL_PAD_NAND_DATA05__UART2_DCE_RX 0x1b0b1
+ MX6UL_PAD_NAND_DATA06__UART2_DCE_CTS 0x1b0b1
+ /*
+ * mux unused RTS to make sure it doesn't cause
+ * any interrupts when it is undefined
+ */
+ MX6UL_PAD_NAND_DATA07__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_uart4: uart4grp {
+ fsl,pins = <
+ MX6UL_PAD_UART4_TX_DATA__UART4_DCE_TX 0x1b0b1
+ MX6UL_PAD_UART4_RX_DATA__UART4_DCE_RX 0x1b0b1
+ >;
+ };
+
+ pinctrl_usbotg1: usbotg1 {
+ fsl,pins = <
+ MX6UL_PAD_GPIO1_IO04__GPIO1_IO04 0x1b0b0
+ >;
+ };
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x17059
+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x10059
+ 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_UART1_RTS_B__GPIO1_IO19 0x100b1 /* SD1_CD */
+ >;
+ };
+
+ pinctrl_usdhc2: usdhc2grp {
+ fsl,pins = <
+ MX6UL_PAD_NAND_RE_B__USDHC2_CLK 0x10059
+ MX6UL_PAD_NAND_WE_B__USDHC2_CMD 0x17059
+ MX6UL_PAD_NAND_DATA00__USDHC2_DATA0 0x17059
+ MX6UL_PAD_NAND_DATA01__USDHC2_DATA1 0x17059
+ MX6UL_PAD_NAND_DATA02__USDHC2_DATA2 0x17059
+ MX6UL_PAD_NAND_DATA03__USDHC2_DATA3 0x17059
+ >;
+ };
+
+ pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+ fsl,pins = <
+ MX6UL_PAD_NAND_RE_B__USDHC2_CLK 0x100b9
+ MX6UL_PAD_NAND_WE_B__USDHC2_CMD 0x170b9
+ MX6UL_PAD_NAND_DATA00__USDHC2_DATA0 0x170b9
+ MX6UL_PAD_NAND_DATA01__USDHC2_DATA1 0x170b9
+ MX6UL_PAD_NAND_DATA02__USDHC2_DATA2 0x170b9
+ MX6UL_PAD_NAND_DATA03__USDHC2_DATA3 0x170b9
+ >;
+ };
+
+ pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+ fsl,pins = <
+ MX6UL_PAD_NAND_RE_B__USDHC2_CLK 0x100f9
+ MX6UL_PAD_NAND_WE_B__USDHC2_CMD 0x170f9
+ MX6UL_PAD_NAND_DATA00__USDHC2_DATA0 0x170f9
+ MX6UL_PAD_NAND_DATA01__USDHC2_DATA1 0x170f9
+ MX6UL_PAD_NAND_DATA02__USDHC2_DATA2 0x170f9
+ MX6UL_PAD_NAND_DATA03__USDHC2_DATA3 0x170f9
+ >;
+ };
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX6UL_PAD_GPIO1_IO09__WDOG1_WDOG_ANY 0x30b0
+ >;
+ };
+};