[PATCH 14/14] imx: kontron-sl-mx8mm: Add support for Kontron Electronics SoM SL i.MX8MM OSM-S

Frieder Schrempf
2022-07-13T09:55:42Z

This adds support for the Kontron Electronics SoM SL i.MX8MM OSM-S
and the matching baseboard BL i.MX8MM OSM-S.

The SoM hardware complies to the Open Standard Module (OSM) 1.0
specification, size S (https://sget.org/standards/osm).

The existing board configuration for the non-OSM SoM is reused and
allows to detect the SoM variant at runtime.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
---
.../dts/imx8mm-kontron-n801x-s-u-boot.dtsi | 138 +------
.../dts/imx8mm-kontron-n802x-s-u-boot.dtsi | 6 +
arch/arm/dts/imx8mm-kontron-n802x-s.dts | 376 ++++++++++++++++++
arch/arm/dts/imx8mm-kontron-n802x-som.dtsi | 309 ++++++++++++++
.../dts/imx8mm-kontron-n80xx-s-u-boot.dtsi | 139 +++++++
board/kontron/sl-mx8mm/MAINTAINERS | 1 +
board/kontron/sl-mx8mm/sl-mx8mm.c | 6 +-
board/kontron/sl-mx8mm/spl.c | 22 +-
configs/kontron-sl-mx8mm_defconfig | 2 +
doc/board/kontron/sl-mx8mm.rst | 7 +-
10 files changed, 866 insertions(+), 140 deletions(-)
create mode 100644 arch/arm/dts/imx8mm-kontron-n802x-s-u-boot.dtsi
create mode 100644 arch/arm/dts/imx8mm-kontron-n802x-s.dts
create mode 100644 arch/arm/dts/imx8mm-kontron-n802x-som.dtsi
create mode 100644 arch/arm/dts/imx8mm-kontron-n80xx-s-u-boot.dtsi

diff --git a/arch/arm/dts/imx8mm-kontron-n801x-s-u-boot.dtsi b/arch/arm/dts/imx8mm-kontron-n801x-s-u-boot.dtsi
index a42881d1a89..e2a5a883256 100644
--- a/arch/arm/dts/imx8mm-kontron-n801x-s-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-kontron-n801x-s-u-boot.dtsi
@@ -1,139 +1,7 @@
-// SPDX-License-Identifier: GPL-2.0+
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
/*
- * Copyright (C) 2019 Kontron Electronics GmbH
+ * Copyright (C) 2022 Kontron Electronics GmbH
*/

-#include "imx8mm-u-boot.dtsi"
+#include "imx8mm-kontron-n80xx-s-u-boot.dtsi"

-/ {
- aliases {
- usb0 = &usbotg1;
- usb1 = &usbotg2;
- };
-
- wdt-reboot {
- compatible = "wdt-reboot";
- wdt = <&wdog1>;
- u-boot,dm-spl;
- };
-
- firmware {
- optee {
- compatible = "linaro,optee-tz";
- method = "smc";
- };
- };
-};
-
-&crypto {
- u-boot,dm-spl;
-};
-
-&sec_jr0 {
- u-boot,dm-spl;
-};
-
-&sec_jr1 {
- u-boot,dm-spl;
-};
-
-&sec_jr2 {
- u-boot,dm-spl;
-};
-
-&i2c1 {
- u-boot,dm-spl;
- u-boot,dm-pre-reloc;
-};
-
-&i2c2 {
- status = "okay";
- u-boot,dm-spl;
- u-boot,dm-pre-reloc;
-};
-
-&pinctrl_ecspi1 {
- u-boot,dm-spl;
-};
-
-&pinctrl_i2c1 {
- u-boot,dm-spl;
-};
-
-&pinctrl_pmic {
- u-boot,dm-spl;
-};
-
-&pinctrl_uart3 {
- u-boot,dm-spl;
- u-boot,dm-pre-reloc;
-};
-
-&pinctrl_usdhc1 {
- u-boot,dm-spl;
-};
-
-&pinctrl_usdhc1_100mhz {
- u-boot,dm-spl;
-};
-
-&pinctrl_usdhc1_200mhz {
- u-boot,dm-spl;
-};
-
-&pinctrl_usdhc2 {
- u-boot,dm-spl;
-};
-
-&pca9450 {
- u-boot,dm-spl;
-};
-
-&{/soc@0/bus@30800000/i2c@30a20000/pmic@25/regulators} {
- u-boot,dm-spl;
-};
-
-&ecspi1 {
- u-boot,dm-spl;
-};
-
-&gpio1 {
- u-boot,dm-spl;
-};
-
-&gpio2 {
- u-boot,dm-spl;
-};
-
-&gpio3 {
- u-boot,dm-spl;
-};
-
-&gpio4 {
- u-boot,dm-spl;
-};
-
-&gpio5 {
- u-boot,dm-spl;
-};
-
-&uart3 {
- u-boot,dm-spl;
- u-boot,dm-pre-reloc;
-};
-
-&usdhc1 {
- u-boot,dm-spl;
-};
-
-&usdhc2 {
- u-boot,dm-spl;
-};
-
-&wdog1 {
- u-boot,dm-spl;
-};
-
-&pinctrl_wdog {
- u-boot,dm-spl;
-};
diff --git a/arch/arm/dts/imx8mm-kontron-n802x-s-u-boot.dtsi b/arch/arm/dts/imx8mm-kontron-n802x-s-u-boot.dtsi
new file mode 100644
index 00000000000..115c4a3d87c
--- /dev/null
+++ b/arch/arm/dts/imx8mm-kontron-n802x-s-u-boot.dtsi
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2022 Kontron Electronics GmbH
+ */
+
+#include "imx8mm-kontron-n80xx-s-u-boot.dtsi"
diff --git a/arch/arm/dts/imx8mm-kontron-n802x-s.dts b/arch/arm/dts/imx8mm-kontron-n802x-s.dts
new file mode 100644
index 00000000000..3d66506f748
--- /dev/null
+++ b/arch/arm/dts/imx8mm-kontron-n802x-s.dts
@@ -0,0 +1,376 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2022 Kontron Electronics GmbH
+ */
+
+/dts-v1/;
+
+#include "imx8mm-kontron-n802x-som.dtsi"
+
+/ {
+ model = "Kontron BL i.MX8MM OSM-S (N802X)";
+ compatible = "kontron,imx8mm-n802x-s", "kontron,imx8mm-n802x-som", "fsl,imx8mm";
+
+ aliases {
+ ethernet1 = &usbnet;
+ };
+
+ /* fixed crystal dedicated to mcp2542fd */
+ osc_can: clock-osc-can {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <40000000>;
+ clock-output-names = "osc-can";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_led>;
+
+ led1 {
+ label = "led1";
+ gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "heartbeat";
+ };
+
+ led2 {
+ label = "led2";
+ gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
+ };
+
+ led3 {
+ label = "led3";
+ gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ pwm-beeper {
+ compatible = "pwm-beeper";
+ pwms = <&pwm2 0 5000 0>;
+ };
+
+ reg_rst_eth2: regulator-rst-eth2 {
+ compatible = "regulator-fixed";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb_eth2>;
+ gpio = <&gpio3 2 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ regulator-always-on;
+ regulator-name = "rst-usb-eth2";
+ };
+
+ reg_usb1_vbus: regulator-usb1-vbus {
+ compatible = "regulator-fixed";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_reg_usb1_vbus>;
+ gpio = <&gpio3 25 GPIO_ACTIVE_LOW>;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-name = "usb1-vbus";
+ };
+
+ reg_vdd_5v: regulator-5v {
+ compatible = "regulator-fixed";
+ regulator-always-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-name = "vdd-5v";
+ };
+};
+
+&ecspi2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi2>;
+ cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+ status = "okay";
+
+ can@0 {
+ compatible = "microchip,mcp251xfd";
+ reg = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_can>;
+ clocks = <&osc_can>;
+ interrupts-extended = <&gpio4 28 IRQ_TYPE_LEVEL_LOW>;
+ /*
+ * Limit the SPI clock to 15 MHz to prevent issues
+ * with corrupted data due to chip errata.
+ */
+ spi-max-frequency = <15000000>;
+ vdd-supply = <&reg_vdd_3v3>;
+ xceiver-supply = <&reg_vdd_5v>;
+ };
+};
+
+&ecspi3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi3>;
+ cs-gpios = <&gpio5 25 GPIO_ACTIVE_LOW>;
+ status = "okay";
+
+ eeram@0 {
+ compatible = "microchip,48l640";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ };
+};
+
+&fec1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet>;
+ phy-connection-type = "rgmii-rxid";
+ phy-handle = <&ethphy>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy: ethernet-phy@0 {
+ reg = <0>;
+ reset-assert-us = <1>;
+ reset-deassert-us = <15000>;
+ reset-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&gpio1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio1>;
+ gpio-line-names = "", "", "", "dio1-out", "", "", "dio1-in", "dio2-out",
+ "dio2-in", "dio3-out", "dio3-in", "dio4-out", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "";
+};
+
+&gpio5 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio5>;
+ gpio-line-names = "", "", "dio4-in", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "";
+};
+
+&i2c4 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c4>;
+ status = "okay";
+};
+
+&pwm2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm2>;
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ linux,rs485-enabled-at-boot-time;
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&usbotg1 {
+ dr_mode = "otg";
+ disable-over-current;
+ vbus-supply = <&reg_usb1_vbus>;
+ status = "okay";
+};
+
+&usbotg2 {
+ dr_mode = "host";
+ disable-over-current;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ usb1@1 {
+ compatible = "usb424,9514";
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usbnet: ethernet@1 {
+ compatible = "usb424,ec00";
+ reg = <1>;
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ };
+ };
+};
+
+&usdhc2 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc2>;
+ pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+ vmmc-supply = <&reg_vdd_3v3>;
+ vqmmc-supply = <&reg_nvcc_sd>;
+ cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl_can: cangrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI3_RXFS_GPIO4_IO28 0x19
+ >;
+ };
+
+ pinctrl_ecspi2: ecspi2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_ECSPI2_MISO_ECSPI2_MISO 0x82
+ MX8MM_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI 0x82
+ MX8MM_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK 0x82
+ MX8MM_IOMUXC_ECSPI2_SS0_GPIO5_IO13 0x19
+ >;
+ };
+
+ pinctrl_ecspi3: ecspi3grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_UART2_RXD_ECSPI3_MISO 0x82
+ MX8MM_IOMUXC_UART1_TXD_ECSPI3_MOSI 0x82
+ MX8MM_IOMUXC_UART1_RXD_ECSPI3_SCLK 0x82
+ MX8MM_IOMUXC_UART2_TXD_GPIO5_IO25 0x19
+ >;
+ };
+
+ pinctrl_enet: enetgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_ENET_MDC_ENET1_MDC 0x3
+ MX8MM_IOMUXC_ENET_MDIO_ENET1_MDIO 0x3
+ MX8MM_IOMUXC_ENET_TD3_ENET1_RGMII_TD3 0x1f
+ MX8MM_IOMUXC_ENET_TD2_ENET1_RGMII_TD2 0x1f
+ MX8MM_IOMUXC_ENET_TD1_ENET1_RGMII_TD1 0x1f
+ MX8MM_IOMUXC_ENET_TD0_ENET1_RGMII_TD0 0x1f
+ MX8MM_IOMUXC_ENET_RD3_ENET1_RGMII_RD3 0x91
+ MX8MM_IOMUXC_ENET_RD2_ENET1_RGMII_RD2 0x91
+ MX8MM_IOMUXC_ENET_RD1_ENET1_RGMII_RD1 0x91
+ MX8MM_IOMUXC_ENET_RD0_ENET1_RGMII_RD0 0x91
+ MX8MM_IOMUXC_ENET_TXC_ENET1_RGMII_TXC 0x1f
+ MX8MM_IOMUXC_ENET_RXC_ENET1_RGMII_RXC 0x91
+ MX8MM_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL 0x91
+ MX8MM_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL 0x1f
+ MX8MM_IOMUXC_GPIO1_IO01_GPIO1_IO1 0x19 /* PHY RST */
+ MX8MM_IOMUXC_GPIO1_IO05_GPIO1_IO5 0x19 /* ETH IRQ */
+ >;
+ };
+
+ pinctrl_gpio_led: gpioledgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO12_GPIO1_IO12 0x19
+ MX8MM_IOMUXC_GPIO1_IO13_GPIO1_IO13 0x19
+ MX8MM_IOMUXC_GPIO1_IO14_GPIO1_IO14 0x19
+ >;
+ };
+
+ pinctrl_gpio1: gpio1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x19
+ MX8MM_IOMUXC_GPIO1_IO07_GPIO1_IO7 0x19
+ MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x19
+ MX8MM_IOMUXC_GPIO1_IO11_GPIO1_IO11 0x19
+ MX8MM_IOMUXC_GPIO1_IO06_GPIO1_IO6 0x19
+ MX8MM_IOMUXC_GPIO1_IO08_GPIO1_IO8 0x19
+ MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10 0x19
+ >;
+ };
+
+ pinctrl_gpio5: gpio5grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI3_MCLK_GPIO5_IO2 0x19
+ >;
+ };
+
+ pinctrl_i2c4: i2c4grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL 0x400001c3
+ MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA 0x400001c3
+ >;
+ };
+
+ pinctrl_pwm2: pwm2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SPDIF_RX_PWM2_OUT 0x19
+ >;
+ };
+
+ pinctrl_reg_usb1_vbus: regusb1vbusgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI5_MCLK_GPIO3_IO25 0x19
+ >;
+ };
+
+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX 0x140
+ MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX 0x140
+ MX8MM_IOMUXC_SAI2_RXD0_UART1_DCE_RTS_B 0x140
+ MX8MM_IOMUXC_SAI2_TXFS_UART1_DCE_CTS_B 0x140
+ >;
+ };
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI3_TXFS_UART2_DCE_RX 0x140
+ MX8MM_IOMUXC_SAI3_TXC_UART2_DCE_TX 0x140
+ MX8MM_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B 0x140
+ MX8MM_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B 0x140
+ >;
+ };
+
+ pinctrl_usb_eth2: usbeth2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_NAND_CE1_B_GPIO3_IO2 0x19
+ >;
+ };
+
+ pinctrl_usdhc2: usdhc2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x190
+ MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d0
+ MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d0
+ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d0
+ MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d0
+ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d0
+ MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019
+ MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
+ >;
+ };
+
+ pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x194
+ MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d4
+ MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d4
+ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d4
+ MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d4
+ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d4
+ MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019
+ MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
+ >;
+ };
+
+ pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x196
+ MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d6
+ MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d6
+ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d6
+ MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d6
+ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d6
+ MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019
+ MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
+ >;
+ };
+};
diff --git a/arch/arm/dts/imx8mm-kontron-n802x-som.dtsi b/arch/arm/dts/imx8mm-kontron-n802x-som.dtsi
new file mode 100644
index 00000000000..25ac46585fd
--- /dev/null
+++ b/arch/arm/dts/imx8mm-kontron-n802x-som.dtsi
@@ -0,0 +1,309 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2022 Kontron Electronics GmbH
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "imx8mm.dtsi"
+
+/ {
+ model = "Kontron SL i.MX8MM OSM-S (N802X)";
+ compatible = "kontron,imx8mm-n802x-som", "fsl,imx8mm";
+
+ memory@40000000 {
+ device_type = "memory";
+ /*
+ * There are multiple SoM flavors with different DDR sizes.
+ * The smallest is 1GB. For larger sizes the bootloader will
+ * update the reg property.
+ */
+ reg = <0x0 0x40000000 0 0x80000000>;
+ };
+
+ chosen {
+ stdout-path = &uart3;
+ };
+};
+
+&A53_0 {
+ cpu-supply = <&reg_vdd_arm>;
+};
+
+&A53_1 {
+ cpu-supply = <&reg_vdd_arm>;
+};
+
+&A53_2 {
+ cpu-supply = <&reg_vdd_arm>;
+};
+
+&A53_3 {
+ cpu-supply = <&reg_vdd_arm>;
+};
+
+&ddrc {
+ operating-points-v2 = <&ddrc_opp_table>;
+
+ ddrc_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-100M {
+ opp-hz = /bits/ 64 <100000000>;
+ };
+
+ opp-750M {
+ opp-hz = /bits/ 64 <750000000>;
+ };
+ };
+};
+
+&ecspi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi1>;
+ cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
+ status = "okay";
+
+ flash@0 {
+ compatible = "mxicy,mx25r1635f", "jedec,spi-nor";
+ spi-max-frequency = <80000000>;
+ reg = <0>;
+ };
+};
+
+&i2c1 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ status = "okay";
+
+ pca9450: pmic@25 {
+ compatible = "nxp,pca9450a";
+ reg = <0x25>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pmic>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+
+ regulators {
+ reg_vdd_soc: BUCK1 {
+ regulator-name = "+0V8_VDD_SOC (BUCK1)";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <850000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <3125>;
+ nxp,dvs-run-voltage = <850000>;
+ nxp,dvs-standby-voltage = <800000>;
+ };
+
+ reg_vdd_arm: BUCK2 {
+ regulator-name = "+0V9_VDD_ARM (BUCK2)";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <950000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <3125>;
+ nxp,dvs-run-voltage = <950000>;
+ nxp,dvs-standby-voltage = <850000>;
+ };
+
+ reg_vdd_dram: BUCK3 {
+ regulator-name = "+0V9_VDD_DRAM&PU (BUCK3)";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <950000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdd_3v3: BUCK4 {
+ regulator-name = "+3V3 (BUCK4)";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdd_1v8: BUCK5 {
+ regulator-name = "+1V8 (BUCK5)";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_nvcc_dram: BUCK6 {
+ regulator-name = "+1V1_NVCC_DRAM (BUCK6)";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_nvcc_snvs: LDO1 {
+ regulator-name = "+1V8_NVCC_SNVS (LDO1)";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdd_snvs: LDO2 {
+ regulator-name = "+0V8_VDD_SNVS (LDO2)";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdda: LDO3 {
+ regulator-name = "+1V8_VDDA (LDO3)";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdd_phy: LDO4 {
+ regulator-name = "+0V9_VDD_PHY (LDO4)";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_nvcc_sd: LDO5 {
+ regulator-name = "NVCC_SD (LDO5)";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ };
+ };
+
+ rtc@52 {
+ compatible = "microcrystal,rv3028";
+ reg = <0x52>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_rtc>;
+ interrupts-extended = <&gpio4 1 IRQ_TYPE_LEVEL_HIGH>;
+ trickle-diode-disable;
+ };
+};
+
+&uart3 { /* console */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3>;
+ status = "okay";
+};
+
+&usdhc1 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+ vmmc-supply = <&reg_vdd_3v3>;
+ vqmmc-supply = <&reg_vdd_1v8>;
+ bus-width = <8>;
+ non-removable;
+ status = "okay";
+};
+
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ fsl,ext-reset-output;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl_ecspi1: ecspi1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_ECSPI1_MISO_ECSPI1_MISO 0x82
+ MX8MM_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI 0x82
+ MX8MM_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK 0x82
+ MX8MM_IOMUXC_ECSPI1_SS0_GPIO5_IO9 0x19
+ >;
+ };
+
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL 0x400001c3
+ MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA 0x400001c3
+ >;
+ };
+
+ pinctrl_pmic: pmicgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO00_GPIO1_IO0 0x141
+ >;
+ };
+
+ pinctrl_rtc: rtcgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI1_RXC_GPIO4_IO1 0x19
+ >;
+ };
+
+ pinctrl_uart3: uart3grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_UART3_RXD_UART3_DCE_RX 0x140
+ MX8MM_IOMUXC_UART3_TXD_UART3_DCE_TX 0x140
+ >;
+ };
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK 0x190
+ MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d0
+ MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d0
+ MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d0
+ MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d0
+ MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d0
+ MX8MM_IOMUXC_SD1_DATA4_USDHC1_DATA4 0x1d0
+ MX8MM_IOMUXC_SD1_DATA5_USDHC1_DATA5 0x1d0
+ MX8MM_IOMUXC_SD1_DATA6_USDHC1_DATA6 0x1d0
+ MX8MM_IOMUXC_SD1_DATA7_USDHC1_DATA7 0x1d0
+ MX8MM_IOMUXC_SD1_RESET_B_USDHC1_RESET_B 0x019
+ MX8MM_IOMUXC_SD1_STROBE_USDHC1_STROBE 0x190
+ >;
+ };
+
+ pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK 0x194
+ MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d4
+ MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d4
+ MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d4
+ MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d4
+ MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d4
+ MX8MM_IOMUXC_SD1_DATA4_USDHC1_DATA4 0x1d4
+ MX8MM_IOMUXC_SD1_DATA5_USDHC1_DATA5 0x1d4
+ MX8MM_IOMUXC_SD1_DATA6_USDHC1_DATA6 0x1d4
+ MX8MM_IOMUXC_SD1_DATA7_USDHC1_DATA7 0x1d4
+ MX8MM_IOMUXC_SD1_RESET_B_USDHC1_RESET_B 0x019
+ MX8MM_IOMUXC_SD1_STROBE_USDHC1_STROBE 0x194
+ >;
+ };
+
+ pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK 0x196
+ MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d6
+ MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d6
+ MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d6
+ MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d6
+ MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d6
+ MX8MM_IOMUXC_SD1_DATA4_USDHC1_DATA4 0x1d6
+ MX8MM_IOMUXC_SD1_DATA5_USDHC1_DATA5 0x1d6
+ MX8MM_IOMUXC_SD1_DATA6_USDHC1_DATA6 0x1d6
+ MX8MM_IOMUXC_SD1_DATA7_USDHC1_DATA7 0x1d6
+ MX8MM_IOMUXC_SD1_RESET_B_USDHC1_RESET_B 0x019
+ MX8MM_IOMUXC_SD1_STROBE_USDHC1_STROBE 0x196
+ >;
+ };
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0xc6
+ >;
+ };
+};
diff --git a/arch/arm/dts/imx8mm-kontron-n80xx-s-u-boot.dtsi b/arch/arm/dts/imx8mm-kontron-n80xx-s-u-boot.dtsi
new file mode 100644
index 00000000000..e7e900d4fa8
--- /dev/null
+++ b/arch/arm/dts/imx8mm-kontron-n80xx-s-u-boot.dtsi
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2019 Kontron Electronics GmbH
+ */
+
+#include "imx8mm-u-boot.dtsi"
+
+/ {
+ aliases {
+ usb0 = &usbotg1;
+ usb1 = &usbotg2;
+ };
+
+ wdt-reboot {
+ compatible = "wdt-reboot";
+ wdt = <&wdog1>;
+ u-boot,dm-spl;
+ };
+
+ firmware {
+ optee {
+ compatible = "linaro,optee-tz";
+ method = "smc";
+ };
+ };
+};
+
+&crypto {
+ u-boot,dm-spl;
+};
+
+&sec_jr0 {
+ u-boot,dm-spl;
+};
+
+&sec_jr1 {
+ u-boot,dm-spl;
+};
+
+&sec_jr2 {
+ u-boot,dm-spl;
+};
+
+&i2c1 {
+ u-boot,dm-spl;
+ u-boot,dm-pre-reloc;
+};
+
+&i2c2 {
+ status = "okay";
+ u-boot,dm-spl;
+ u-boot,dm-pre-reloc;
+};
+
+&pinctrl_ecspi1 {
+ u-boot,dm-spl;
+};
+
+&pinctrl_i2c1 {
+ u-boot,dm-spl;
+};
+
+&pinctrl_pmic {
+ u-boot,dm-spl;
+};
+
+&pinctrl_uart3 {
+ u-boot,dm-spl;
+ u-boot,dm-pre-reloc;
+};
+
+&pinctrl_usdhc1 {
+ u-boot,dm-spl;
+};
+
+&pinctrl_usdhc1_100mhz {
+ u-boot,dm-spl;
+};
+
+&pinctrl_usdhc1_200mhz {
+ u-boot,dm-spl;
+};
+
+&pinctrl_usdhc2 {
+ u-boot,dm-spl;
+};
+
+&pca9450 {
+ u-boot,dm-spl;
+};
+
+&{/soc@0/bus@30800000/i2c@30a20000/pmic@25/regulators} {
+ u-boot,dm-spl;
+};
+
+&ecspi1 {
+ u-boot,dm-spl;
+};
+
+&gpio1 {
+ u-boot,dm-spl;
+};
+
+&gpio2 {
+ u-boot,dm-spl;
+};
+
+&gpio3 {
+ u-boot,dm-spl;
+};
+
+&gpio4 {
+ u-boot,dm-spl;
+};
+
+&gpio5 {
+ u-boot,dm-spl;
+};
+
+&uart3 {
+ u-boot,dm-spl;
+ u-boot,dm-pre-reloc;
+};
+
+&usdhc1 {
+ u-boot,dm-spl;
+};
+
+&usdhc2 {
+ u-boot,dm-spl;
+};
+
+&wdog1 {
+ u-boot,dm-spl;
+};
+
+&pinctrl_wdog {
+ u-boot,dm-spl;
+};
diff --git a/board/kontron/sl-mx8mm/MAINTAINERS b/board/kontron/sl-mx8mm/MAINTAINERS
index 5e68ae0305a..df60cc2444f 100644
--- a/board/kontron/sl-mx8mm/MAINTAINERS
+++ b/board/kontron/sl-mx8mm/MAINTAINERS
@@ -2,6 +2,7 @@ Kontron SL/BL i.MX8M Mini Boards (N801x)
M: Frieder Schrempf <frieder.schrempf@kontron.de>
S: Maintained
F: arch/arm/dts/imx8mm-kontron-n801x-*
+F: arch/arm/dts/imx8mm-kontron-n802x-*
F: board/kontron/sl-mx8mm
F: configs/kontron-sl-mx8mm_defconfig
F: doc/board/kontron/sl-mx8mm.rst
diff --git a/board/kontron/sl-mx8mm/sl-mx8mm.c b/board/kontron/sl-mx8mm/sl-mx8mm.c
index 9cbae6add16..c576c58adc0 100644
--- a/board/kontron/sl-mx8mm/sl-mx8mm.c
+++ b/board/kontron/sl-mx8mm/sl-mx8mm.c
@@ -123,7 +123,11 @@ int board_init(void)

int board_late_init(void)
{
- env_set("som_type", "n801x");
+ if (!fdt_node_check_compatible(gd->fdt_blob, 0, "kontron,imx8mm-n802x-som"))
+ env_set("som_type", "n802x");
+ else
+ env_set("som_type", "n801x");
+
return 0;
}

diff --git a/board/kontron/sl-mx8mm/spl.c b/board/kontron/sl-mx8mm/spl.c
index 28211ae78f3..8082ad390f8 100644
--- a/board/kontron/sl-mx8mm/spl.c
+++ b/board/kontron/sl-mx8mm/spl.c
@@ -29,6 +29,7 @@ DECLARE_GLOBAL_DATA_PTR;

enum {
BOARD_TYPE_KTN_N801X,
+ BOARD_TYPE_KTN_N802X,
BOARD_TYPE_MAX
};

@@ -115,8 +116,21 @@ static void spl_dram_init(void)

int do_board_detect(void)
{
- gd->board_type = BOARD_TYPE_KTN_N801X;
- printf("Kontron SL i.MX8MM (N801X) module, %u GB RAM detected\n", gd->ram_size);
+ struct udevice *udev;
+
+ /*
+ * Check for the RTC on the OSM module.
+ */
+ imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
+
+ if (i2c_get_chip_for_busnum(0, 0x52, 0, &udev) == 0) {
+ gd->board_type = BOARD_TYPE_KTN_N802X;
+ printf("Kontron SL i.MX8MM OSM-S (N802X) module, %u GB RAM detected\n",
+ gd->ram_size);
+ } else {
+ gd->board_type = BOARD_TYPE_KTN_N801X;
+ printf("Kontron SL i.MX8MM (N801X) module, %u GB RAM detected\n", gd->ram_size);
+ }

/*
* Check the I2C PMIC to detect the deprecated SoM with DA9063.
@@ -138,6 +152,10 @@ int board_fit_config_name_match(const char *name)
!strncmp(name, "imx8mm-kontron-n801x-s", 22))
return 0;

+ if (gd->board_type == BOARD_TYPE_KTN_N802X && is_imx8mm() &&
+ !strncmp(name, "imx8mm-kontron-n802x-s", 22))
+ return 0;
+
return -1;
}

diff --git a/configs/kontron-sl-mx8mm_defconfig b/configs/kontron-sl-mx8mm_defconfig
index d9cacb2d809..5a480805133 100644
--- a/configs/kontron-sl-mx8mm_defconfig
+++ b/configs/kontron-sl-mx8mm_defconfig
@@ -70,6 +70,7 @@ CONFIG_CMD_EXT4_WRITE=y
CONFIG_MTDPARTS_DEFAULT="mtdparts=spi0.0:320k(spl),1024k(u-boot),64k(env),64k(env_redundant)"
CONFIG_OF_CONTROL=y
CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_LIST="imx8mm-kontron-n801x-s imx8mm-kontron-n802x-s"
CONFIG_ENV_IS_IN_MMC=y
CONFIG_ENV_IS_IN_SPI_FLASH=y
CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
@@ -118,6 +119,7 @@ CONFIG_SPL_DM_PMIC_PCA9450=y
CONFIG_DM_REGULATOR=y
CONFIG_DM_REGULATOR_PCA9450=y
CONFIG_DM_RTC=y
+CONFIG_RTC_RV3028=y
CONFIG_RTC_RV8803=y
CONFIG_DM_SERIAL=y
CONFIG_MXC_UART=y
diff --git a/doc/board/kontron/sl-mx8mm.rst b/doc/board/kontron/sl-mx8mm.rst
index 7a4c1134b54..dbe7bf067b4 100644
--- a/doc/board/kontron/sl-mx8mm.rst
+++ b/doc/board/kontron/sl-mx8mm.rst
@@ -3,12 +3,15 @@
Kontron Electronics SL i.MX8MM SoM
==================================

-The Kontron SoM-Line i.MX8MM (N801x) by Kontron Electronics GmbH is a SoM module
-with an i.MX8M-Mini SoC, 1/2/4 GB LPDDR4 RAM, SPI NOR, eMMC and PMIC.
+The Kontron SoM-Line i.MX8MM (N801x, N802x) by Kontron Electronics GmbH is a SoM
+module with an i.MX8M-Mini SoC, 1/2/4 GB LPDDR4 RAM, SPI NOR, eMMC and PMIC.

The matching evaluation boards (Board-Line) have two Ethernet ports, USB 2.0,
HDMI/LVDS, SD card, CAN, RS485, RS232 and much more.

+The SL i.MX8MM OSM-S (N802x) is compliant to the Open Standard Module (OSM) 1.0
+specification, size S (https://sget.org/standards/osm).
+
Quick Start
-----------

--
2.37.0