From: Frieder Schrempf <[email protected]>
Kontron Electronics GmbH offers small and powerful SoMs based on the
i.MX8M Mini SoC including PMIC, LPDDR4-RAM, eMMC and SPI NOR.
Currently there are two SoM models:
* SL i.MX8MM N8010 with 1GB RAM and 8 GB eMMC
* SL i.MX8MM N8011 with 2GB RAM and 8 GB eMMC
The matching baseboard has the same form factor and similar interfaces
as the other boards from the Kontron "Board-Line" family, including
SD card, 1G Ethernet, 100M Ethernet, USB Host/OTG, digital IOs, RS232,
RS485, CAN, LVDS or HDMI, RTC and much more.
This adds the basic support for the SoMs and boards. Some things to note:
* The SoMs use the PCA9450 PMIC. The driver support is queued: [1].
* The support for the SPI NOR flash is queued: [2].
* The graphics and display peripherals (DSI, LVDS, HDMI, GPU, etc.) are not
supported upstream yet.
* There seems to be an unresolved issue with the upstream SPI driver for
i.MX8MM which breaks SPI devices: [3].
[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20200716&id=0935ff5f1f0a44f66a13e075ed49f97ad99d2fdc
[2] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit?h=next-20200716&id=482dcb2a04fdf6d4306e40f2b0537a313a466558
[3] https://patchwork.kernel.org/patch/11037107/#23227681.
Frieder Schrempf (2):
arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards
dt-bindings: arm: fsl: Add Kontron i.MX8M Mini SoMs and boards
.../devicetree/bindings/arm/fsl.yaml | 7 +
.../dts/freescale/imx8mm-kontron-n801x-s.dts | 327 ++++++++++++++++++
.../freescale/imx8mm-kontron-n801x-som.dtsi | 294 ++++++++++++++++
3 files changed, 628 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
--
2.17.1
From: Frieder Schrempf <[email protected]>
Add entries for the SoMs and boards based on i.MX8MM from Kontron
Electronics GmbH.
Signed-off-by: Frieder Schrempf <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
---
Changes for v2:
* Merge the SoMs and baseboards N8010 and N8011 into a single
configuration (N801X).
* Add Rob's R-b tag
---
Documentation/devicetree/bindings/arm/fsl.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 05906e291e38..33ae19e8fcf6 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -337,6 +337,13 @@ properties:
items:
- enum:
- fsl,imx8mm-evk # i.MX8MM EVK Board
+ - kontron,imx8mm-n801x-som # Kontron N801X SOM
+ - const: fsl,imx8mm
+
+ - description: Kontron N801X S Board
+ items:
+ - const: kontron,imx8mm-n801x-s
+ - const: kontron,imx8mm-n801x-som
- const: fsl,imx8mm
- description: i.MX8MN based Boards
--
2.17.1
From: Frieder Schrempf <[email protected]>
Kontron Electronics GmbH offers small and powerful SoMs based on the
i.MX8M Mini SoC including PMIC, LPDDR4-RAM, eMMC and SPI NOR.
The matching baseboards have the same form factor and similar interfaces
as the other boards from the Kontron "Board-Line" family, including
SD card, 1G Ethernet, 100M Ethernet, USB Host/OTG, digital IOs, RS232,
RS485, CAN, LVDS or HDMI, RTC and much more.
Signed-off-by: Frieder Schrempf <[email protected]>
---
Changes for v2:
* Make the licensing less strict (GPL-2.0+ OR MIT)
* Merge the SoM and baseboard DTs for N8010 and N8011 into one as
they only differ in DDR and eMMC size.
* Change compatibles and model strings to "n810x" and "N8010X".
* Only use a common memory node that will be updated by the
bootloader reflecting the detected DDR size.
* Improve naming for 16MHz CAN fixed oscillator and set
"clock-output-names".
* Consistently use "reg_" prefix for regulators.
* Remove "userspi" node.
* Slightly improve commit message.
---
.../dts/freescale/imx8mm-kontron-n801x-s.dts | 327 ++++++++++++++++++
.../freescale/imx8mm-kontron-n801x-som.dtsi | 294 ++++++++++++++++
2 files changed, 621 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
new file mode 100644
index 000000000000..25b8ef569edd
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
@@ -0,0 +1,327 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2019 Kontron Electronics GmbH
+ */
+
+/dts-v1/;
+
+#include "imx8mm-kontron-n801x-som.dtsi"
+
+/ {
+ model = "Kontron i.MX8MM N801X S";
+ compatible = "kontron,imx8mm-n801x-s", "kontron,imx8mm-n801x-som", "fsl,imx8mm";
+
+ aliases {
+ ethernet1 = &usbnet;
+ };
+
+ /* fixed crystal dedicated to mcp2515 */
+ osc_can: clock-osc-can {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <16000000>;
+ clock-output-names = "osc-can";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_led>;
+
+ led1 {
+ label = "led1";
+ gpios = <&gpio4 17 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "heartbeat";
+ };
+
+ led2 {
+ label = "led2";
+ gpios = <&gpio4 19 GPIO_ACTIVE_LOW>;
+ };
+
+ led3 {
+ label = "led3";
+ gpios = <&gpio4 18 GPIO_ACTIVE_LOW>;
+ };
+
+ led4 {
+ label = "led4";
+ gpios = <&gpio4 8 GPIO_ACTIVE_LOW>;
+ };
+
+ led5 {
+ label = "led5";
+ gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
+ };
+
+ led6 {
+ label = "led6";
+ gpios = <&gpio4 7 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ pwm-beeper {
+ compatible = "pwm-beeper";
+ pwms = <&pwm2 0 5000 0>;
+ };
+
+ reg_rst_eth2: regulator-rst-eth2 {
+ compatible = "regulator-fixed";
+ regulator-name = "rst-usb-eth2";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb_eth2>;
+ gpio = <&gpio3 2 GPIO_ACTIVE_LOW>;
+ status = "okay";
+ };
+
+ reg_vdd_5v: regulator-5v {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd-5v";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ status = "okay";
+ };
+};
+
+&ecspi2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi2>;
+ cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+ status = "okay";
+
+ can0: can@0 {
+ compatible = "microchip,mcp2515";
+ reg = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_can>;
+ clocks = <&osc_can>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <28 IRQ_TYPE_EDGE_FALLING>;
+ spi-max-frequency = <100000>;
+ vdd-supply = <®_vdd_3v3>;
+ xceiver-supply = <®_vdd_5v>;
+ status = "okay";
+ };
+};
+
+&ecspi3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi3>;
+ cs-gpios = <&gpio5 25 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&fec1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet>;
+ phy-mode = "rgmii";
+ phy-reset-gpios = <&gpio4 27 GPIO_ACTIVE_LOW>;
+ phy-reset-duration = <100>;
+ phy-reset-post-delay = <100>;
+ phy-handle = <ðphy>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy: ethernet-phy@0 {
+ reg = <0>;
+ };
+ };
+};
+
+&i2c4 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c4>;
+ status = "okay";
+
+ rtc@32 {
+ compatible = "epson,rx8900";
+ reg = <0x32>;
+ };
+};
+
+&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";
+ 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: usbether@1 {
+ compatible = "usb424,ec00";
+ reg = <1>;
+ mac-address = [ 00 00 00 00 00 00 ];
+ };
+ };
+};
+
+&usdhc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc2>;
+ vmmc-supply = <®_vdd_3v3>;
+ vqmmc-supply = <®_nvcc_sd>;
+ cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio>;
+
+ 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_SAI2_MCLK_GPIO4_IO27 0x19 /* PHY RST */
+ MX8MM_IOMUXC_SAI2_TXC_GPIO4_IO25 0x19 /* ETH IRQ */
+ >;
+ };
+
+ pinctrl_gpio_led: gpioledgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16 0x19
+ MX8MM_IOMUXC_SAI1_RXD5_GPIO4_IO7 0x19
+ MX8MM_IOMUXC_SAI1_RXD6_GPIO4_IO8 0x19
+ MX8MM_IOMUXC_SAI1_RXD7_GPIO4_IO9 0x19
+ MX8MM_IOMUXC_SAI1_TXD5_GPIO4_IO17 0x19
+ MX8MM_IOMUXC_SAI1_TXD6_GPIO4_IO18 0x19
+ MX8MM_IOMUXC_SAI1_TXD7_GPIO4_IO19 0x19
+ >;
+ };
+
+ pinctrl_gpio: gpiogrp {
+ 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
+ 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_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
+ >;
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
new file mode 100644
index 000000000000..6ff06d1cb23a
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2019 Kontron Electronics GmbH
+ */
+
+#include "imx8mm.dtsi"
+
+/ {
+ model = "Kontron i.MX8MM N801X SoM";
+ compatible = "kontron,imx8mm-n801x-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 = <®_vdd_arm>;
+};
+
+&A53_1 {
+ cpu-supply = <®_vdd_arm>;
+};
+
+&A53_2 {
+ cpu-supply = <®_vdd_arm>;
+};
+
+&A53_3 {
+ cpu-supply = <®_vdd_arm>;
+};
+
+&ddrc {
+ operating-points-v2 = <&ddrc_opp_table>;
+
+ ddrc_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-25M {
+ opp-hz = /bits/ 64 <25000000>;
+ };
+
+ 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_HIGH>;
+ status = "okay";
+
+ spi-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";
+
+ pmic: pca9450@25 {
+ compatible = "nxp,pca9450a";
+ reg = <0x25>;
+ pinctrl-0 = <&pinctrl_pmic>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <0 GPIO_ACTIVE_LOW>;
+
+ regulators {
+ reg_vdd_soc: BUCK1 {
+ regulator-name = "BUCK1";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <3125>;
+ };
+
+ reg_vdd_arm: BUCK2 {
+ regulator-name = "BUCK2";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <950000>;
+ regulator-boot-on;
+ regulator-ramp-delay = <3125>;
+ nxp,dvs-run-voltage = <950000>;
+ nxp,dvs-standby-voltage = <850000>;
+ };
+
+ reg_vdd_dram: BUCK3 {
+ regulator-name = "BUCK3";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdd_3v3: BUCK4 {
+ regulator-name = "BUCK4";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdd_1v8: BUCK5 {
+ regulator-name = "BUCK5";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_nvcc_dram: BUCK6 {
+ regulator-name = "BUCK6";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_nvcc_snvs: LDO1 {
+ regulator-name = "LDO1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdd_snvs: LDO2 {
+ regulator-compatible = "ldo2";
+ regulator-name = "LDO2";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdda: LDO3 {
+ regulator-name = "LDO3";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdd_phy: LDO4 {
+ regulator-name = "LDO4";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_nvcc_sd: LDO5 {
+ regulator-name = "LDO5";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ };
+ };
+};
+
+&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 = <®_vdd_3v3>;
+ vqmmc-supply = <®_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 0x41
+ >;
+ };
+
+ 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: usdhc1grp100mhz {
+ 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: usdhc1grp200mhz {
+ 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
+ >;
+ };
+};
--
2.17.1
On Thu, Jul 16, 2020 at 06:11:58PM +0200, Schrempf Frieder wrote:
> From: Frieder Schrempf <[email protected]>
>
> Kontron Electronics GmbH offers small and powerful SoMs based on the
> i.MX8M Mini SoC including PMIC, LPDDR4-RAM, eMMC and SPI NOR.
>
> The matching baseboards have the same form factor and similar interfaces
> as the other boards from the Kontron "Board-Line" family, including
> SD card, 1G Ethernet, 100M Ethernet, USB Host/OTG, digital IOs, RS232,
> RS485, CAN, LVDS or HDMI, RTC and much more.
>
> Signed-off-by: Frieder Schrempf <[email protected]>
> ---
> Changes for v2:
> * Make the licensing less strict (GPL-2.0+ OR MIT)
> * Merge the SoM and baseboard DTs for N8010 and N8011 into one as
> they only differ in DDR and eMMC size.
> * Change compatibles and model strings to "n810x" and "N8010X".
> * Only use a common memory node that will be updated by the
> bootloader reflecting the detected DDR size.
> * Improve naming for 16MHz CAN fixed oscillator and set
> "clock-output-names".
> * Consistently use "reg_" prefix for regulators.
> * Remove "userspi" node.
> * Slightly improve commit message.
> ---
> .../dts/freescale/imx8mm-kontron-n801x-s.dts | 327 ++++++++++++++++++
> .../freescale/imx8mm-kontron-n801x-som.dtsi | 294 ++++++++++++++++
> 2 files changed, 621 insertions(+)
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
> new file mode 100644
> index 000000000000..25b8ef569edd
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
> @@ -0,0 +1,327 @@
> +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> +/*
> + * Copyright (C) 2019 Kontron Electronics GmbH
> + */
> +
> +/dts-v1/;
> +
> +#include "imx8mm-kontron-n801x-som.dtsi"
> +
> +/ {
> + model = "Kontron i.MX8MM N801X S";
> + compatible = "kontron,imx8mm-n801x-s", "kontron,imx8mm-n801x-som", "fsl,imx8mm";
> +
> + aliases {
> + ethernet1 = &usbnet;
> + };
> +
> + /* fixed crystal dedicated to mcp2515 */
> + osc_can: clock-osc-can {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <16000000>;
> + clock-output-names = "osc-can";
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_gpio_led>;
> +
> + led1 {
> + label = "led1";
> + gpios = <&gpio4 17 GPIO_ACTIVE_LOW>;
> + linux,default-trigger = "heartbeat";
> + };
> +
> + led2 {
> + label = "led2";
> + gpios = <&gpio4 19 GPIO_ACTIVE_LOW>;
> + };
> +
> + led3 {
> + label = "led3";
> + gpios = <&gpio4 18 GPIO_ACTIVE_LOW>;
> + };
> +
> + led4 {
> + label = "led4";
> + gpios = <&gpio4 8 GPIO_ACTIVE_LOW>;
> + };
> +
> + led5 {
> + label = "led5";
> + gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
> + };
> +
> + led6 {
> + label = "led6";
> + gpios = <&gpio4 7 GPIO_ACTIVE_LOW>;
> + };
> + };
> +
> + pwm-beeper {
> + compatible = "pwm-beeper";
> + pwms = <&pwm2 0 5000 0>;
> + };
> +
> + reg_rst_eth2: regulator-rst-eth2 {
> + compatible = "regulator-fixed";
> + regulator-name = "rst-usb-eth2";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usb_eth2>;
> + gpio = <&gpio3 2 GPIO_ACTIVE_LOW>;
> + status = "okay";
We usually use 'okay' to flip 'disabled' status set in <soc>.dtsi. It's
not really needed here.
> + };
> +
> + reg_vdd_5v: regulator-5v {
> + compatible = "regulator-fixed";
> + regulator-name = "vdd-5v";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + regulator-boot-on;
> + regulator-always-on;
What's the point of having these for a regulator that doesn't have
on/off control?
> + status = "okay";
> + };
> +};
> +
> +&ecspi2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_ecspi2>;
> + cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
> + status = "okay";
> +
> + can0: can@0 {
> + compatible = "microchip,mcp2515";
> + reg = <0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_can>;
> + clocks = <&osc_can>;
> + interrupt-parent = <&gpio4>;
> + interrupts = <28 IRQ_TYPE_EDGE_FALLING>;
> + spi-max-frequency = <100000>;
> + vdd-supply = <®_vdd_3v3>;
> + xceiver-supply = <®_vdd_5v>;
> + status = "okay";
> + };
> +};
> +
> +&ecspi3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_ecspi3>;
> + cs-gpios = <&gpio5 25 GPIO_ACTIVE_LOW>;
> + status = "okay";
> +};
> +
> +&fec1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_enet>;
> + phy-mode = "rgmii";
> + phy-reset-gpios = <&gpio4 27 GPIO_ACTIVE_LOW>;
> + phy-reset-duration = <100>;
> + phy-reset-post-delay = <100>;
These properties are deprecated.
> + phy-handle = <ðphy>;
> + status = "okay";
> +
> + mdio {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethphy: ethernet-phy@0 {
> + reg = <0>;
> + };
> + };
> +};
> +
> +&i2c4 {
> + clock-frequency = <100000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c4>;
> + status = "okay";
> +
> + rtc@32 {
> + compatible = "epson,rx8900";
> + reg = <0x32>;
> + };
> +};
> +
> +&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";
> + 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: usbether@1 {
> + compatible = "usb424,ec00";
> + reg = <1>;
> + mac-address = [ 00 00 00 00 00 00 ];
> + };
> + };
> +};
> +
> +&usdhc2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usdhc2>;
> + vmmc-supply = <®_vdd_3v3>;
> + vqmmc-supply = <®_nvcc_sd>;
> + cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
> + bus-width = <4>;
> + status = "okay";
> +};
> +
> +&iomuxc {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_gpio>;
> +
> + 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_SAI2_MCLK_GPIO4_IO27 0x19 /* PHY RST */
> + MX8MM_IOMUXC_SAI2_TXC_GPIO4_IO25 0x19 /* ETH IRQ */
> + >;
> + };
> +
> + pinctrl_gpio_led: gpioledgrp {
> + fsl,pins = <
> + MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16 0x19
> + MX8MM_IOMUXC_SAI1_RXD5_GPIO4_IO7 0x19
> + MX8MM_IOMUXC_SAI1_RXD6_GPIO4_IO8 0x19
> + MX8MM_IOMUXC_SAI1_RXD7_GPIO4_IO9 0x19
> + MX8MM_IOMUXC_SAI1_TXD5_GPIO4_IO17 0x19
> + MX8MM_IOMUXC_SAI1_TXD6_GPIO4_IO18 0x19
> + MX8MM_IOMUXC_SAI1_TXD7_GPIO4_IO19 0x19
> + >;
> + };
> +
> + pinctrl_gpio: gpiogrp {
> + 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
> + 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_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
> + >;
> + };
> +};
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
> new file mode 100644
> index 000000000000..6ff06d1cb23a
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
> @@ -0,0 +1,294 @@
> +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> +/*
> + * Copyright (C) 2019 Kontron Electronics GmbH
> + */
> +
> +#include "imx8mm.dtsi"
> +
> +/ {
> + model = "Kontron i.MX8MM N801X SoM";
> + compatible = "kontron,imx8mm-n801x-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 = <®_vdd_arm>;
> +};
> +
> +&A53_1 {
> + cpu-supply = <®_vdd_arm>;
> +};
> +
> +&A53_2 {
> + cpu-supply = <®_vdd_arm>;
> +};
> +
> +&A53_3 {
> + cpu-supply = <®_vdd_arm>;
> +};
> +
> +&ddrc {
> + operating-points-v2 = <&ddrc_opp_table>;
> +
> + ddrc_opp_table: opp-table {
> + compatible = "operating-points-v2";
> +
> + opp-25M {
> + opp-hz = /bits/ 64 <25000000>;
> + };
> +
> + opp-100M {
> + opp-hz = /bits/ 64 <100000000>;
> + };
> +
> + opp-750M {
> + opp-hz = /bits/ 64 <750000000>;
> + };
> + };
Why is this a board level setting?
> +};
> +
> +&ecspi1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_ecspi1>;
> + cs-gpios = <&gpio5 9 GPIO_ACTIVE_HIGH>;
> + status = "okay";
> +
> + spi-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";
> +
> + pmic: pca9450@25 {
Node name should be generic while label could be specific. So it should
be better to name it like:
pca9450: pmic@25
Shawn
> + compatible = "nxp,pca9450a";
> + reg = <0x25>;
> + pinctrl-0 = <&pinctrl_pmic>;
> + interrupt-parent = <&gpio1>;
> + interrupts = <0 GPIO_ACTIVE_LOW>;
> +
> + regulators {
> + reg_vdd_soc: BUCK1 {
> + regulator-name = "BUCK1";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <900000>;
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-ramp-delay = <3125>;
> + };
> +
> + reg_vdd_arm: BUCK2 {
> + regulator-name = "BUCK2";
> + regulator-min-microvolt = <850000>;
> + regulator-max-microvolt = <950000>;
> + regulator-boot-on;
> + regulator-ramp-delay = <3125>;
> + nxp,dvs-run-voltage = <950000>;
> + nxp,dvs-standby-voltage = <850000>;
> + };
> +
> + reg_vdd_dram: BUCK3 {
> + regulator-name = "BUCK3";
> + regulator-min-microvolt = <850000>;
> + regulator-max-microvolt = <900000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + reg_vdd_3v3: BUCK4 {
> + regulator-name = "BUCK4";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + reg_vdd_1v8: BUCK5 {
> + regulator-name = "BUCK5";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + reg_nvcc_dram: BUCK6 {
> + regulator-name = "BUCK6";
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + reg_nvcc_snvs: LDO1 {
> + regulator-name = "LDO1";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + reg_vdd_snvs: LDO2 {
> + regulator-compatible = "ldo2";
> + regulator-name = "LDO2";
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <900000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + reg_vdda: LDO3 {
> + regulator-name = "LDO3";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + reg_vdd_phy: LDO4 {
> + regulator-name = "LDO4";
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <900000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + reg_nvcc_sd: LDO5 {
> + regulator-name = "LDO5";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + };
> + };
> + };
> +};
> +
> +&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 = <®_vdd_3v3>;
> + vqmmc-supply = <®_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 0x41
> + >;
> + };
> +
> + 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: usdhc1grp100mhz {
> + 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: usdhc1grp200mhz {
> + 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
> + >;
> + };
> +};
> --
> 2.17.1
>
On 17.08.20 10:51, Shawn Guo wrote:
> On Thu, Jul 16, 2020 at 06:11:58PM +0200, Schrempf Frieder wrote:
>> From: Frieder Schrempf <[email protected]>
>>
>> Kontron Electronics GmbH offers small and powerful SoMs based on the
>> i.MX8M Mini SoC including PMIC, LPDDR4-RAM, eMMC and SPI NOR.
>>
>> The matching baseboards have the same form factor and similar interfaces
>> as the other boards from the Kontron "Board-Line" family, including
>> SD card, 1G Ethernet, 100M Ethernet, USB Host/OTG, digital IOs, RS232,
>> RS485, CAN, LVDS or HDMI, RTC and much more.
>>
>> Signed-off-by: Frieder Schrempf <[email protected]>
>> ---
>> Changes for v2:
>> * Make the licensing less strict (GPL-2.0+ OR MIT)
>> * Merge the SoM and baseboard DTs for N8010 and N8011 into one as
>> they only differ in DDR and eMMC size.
>> * Change compatibles and model strings to "n810x" and "N8010X".
>> * Only use a common memory node that will be updated by the
>> bootloader reflecting the detected DDR size.
>> * Improve naming for 16MHz CAN fixed oscillator and set
>> "clock-output-names".
>> * Consistently use "reg_" prefix for regulators.
>> * Remove "userspi" node.
>> * Slightly improve commit message.
>> ---
>> .../dts/freescale/imx8mm-kontron-n801x-s.dts | 327 ++++++++++++++++++
>> .../freescale/imx8mm-kontron-n801x-som.dtsi | 294 ++++++++++++++++
>> 2 files changed, 621 insertions(+)
>> create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
>> create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
>>
>> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
>> new file mode 100644
>> index 000000000000..25b8ef569edd
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
>> @@ -0,0 +1,327 @@
>> +// SPDX-License-Identifier: GPL-2.0+ OR MIT
>> +/*
>> + * Copyright (C) 2019 Kontron Electronics GmbH
>> + */
>> +
>> +/dts-v1/;
>> +
>> +#include "imx8mm-kontron-n801x-som.dtsi"
>> +
>> +/ {
>> + model = "Kontron i.MX8MM N801X S";
>> + compatible = "kontron,imx8mm-n801x-s", "kontron,imx8mm-n801x-som", "fsl,imx8mm";
>> +
>> + aliases {
>> + ethernet1 = &usbnet;
>> + };
>> +
>> + /* fixed crystal dedicated to mcp2515 */
>> + osc_can: clock-osc-can {
>> + compatible = "fixed-clock";
>> + #clock-cells = <0>;
>> + clock-frequency = <16000000>;
>> + clock-output-names = "osc-can";
>> + };
>> +
>> + leds {
>> + compatible = "gpio-leds";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_gpio_led>;
>> +
>> + led1 {
>> + label = "led1";
>> + gpios = <&gpio4 17 GPIO_ACTIVE_LOW>;
>> + linux,default-trigger = "heartbeat";
>> + };
>> +
>> + led2 {
>> + label = "led2";
>> + gpios = <&gpio4 19 GPIO_ACTIVE_LOW>;
>> + };
>> +
>> + led3 {
>> + label = "led3";
>> + gpios = <&gpio4 18 GPIO_ACTIVE_LOW>;
>> + };
>> +
>> + led4 {
>> + label = "led4";
>> + gpios = <&gpio4 8 GPIO_ACTIVE_LOW>;
>> + };
>> +
>> + led5 {
>> + label = "led5";
>> + gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
>> + };
>> +
>> + led6 {
>> + label = "led6";
>> + gpios = <&gpio4 7 GPIO_ACTIVE_LOW>;
>> + };
>> + };
>> +
>> + pwm-beeper {
>> + compatible = "pwm-beeper";
>> + pwms = <&pwm2 0 5000 0>;
>> + };
>> +
>> + reg_rst_eth2: regulator-rst-eth2 {
>> + compatible = "regulator-fixed";
>> + regulator-name = "rst-usb-eth2";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_usb_eth2>;
>> + gpio = <&gpio3 2 GPIO_ACTIVE_LOW>;
>> + status = "okay";
>
> We usually use 'okay' to flip 'disabled' status set in <soc>.dtsi. It's
> not really needed here.
Ok.
>
>> + };
>> +
>> + reg_vdd_5v: regulator-5v {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vdd-5v";
>> + regulator-min-microvolt = <5000000>;
>> + regulator-max-microvolt = <5000000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>
> What's the point of having these for a regulator that doesn't have
> on/off control?
Nothing, I will remove them.
>
>> + status = "okay";
>> + };
>> +};
>> +
>> +&ecspi2 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_ecspi2>;
>> + cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
>> + status = "okay";
>> +
>> + can0: can@0 {
>> + compatible = "microchip,mcp2515";
>> + reg = <0>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_can>;
>> + clocks = <&osc_can>;
>> + interrupt-parent = <&gpio4>;
>> + interrupts = <28 IRQ_TYPE_EDGE_FALLING>;
>> + spi-max-frequency = <100000>;
>> + vdd-supply = <®_vdd_3v3>;
>> + xceiver-supply = <®_vdd_5v>;
>> + status = "okay";
>> + };
>> +};
>> +
>> +&ecspi3 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_ecspi3>;
>> + cs-gpios = <&gpio5 25 GPIO_ACTIVE_LOW>;
>> + status = "okay";
>> +};
>> +
>> +&fec1 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_enet>;
>> + phy-mode = "rgmii";
>> + phy-reset-gpios = <&gpio4 27 GPIO_ACTIVE_LOW>;
>> + phy-reset-duration = <100>;
>> + phy-reset-post-delay = <100>;
>
> These properties are deprecated.
Ok, I will use the reset bindings in the phy node instead.
>
>> + phy-handle = <ðphy>;
>> + status = "okay";
>> +
>> + mdio {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + ethphy: ethernet-phy@0 {
>> + reg = <0>;
>> + };
>> + };
>> +};
>> +
>> +&i2c4 {
>> + clock-frequency = <100000>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_i2c4>;
>> + status = "okay";
>> +
>> + rtc@32 {
>> + compatible = "epson,rx8900";
>> + reg = <0x32>;
>> + };
>> +};
>> +
>> +&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";
>> + 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: usbether@1 {
>> + compatible = "usb424,ec00";
>> + reg = <1>;
>> + mac-address = [ 00 00 00 00 00 00 ];
>> + };
>> + };
>> +};
>> +
>> +&usdhc2 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_usdhc2>;
>> + vmmc-supply = <®_vdd_3v3>;
>> + vqmmc-supply = <®_nvcc_sd>;
>> + cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
>> + bus-width = <4>;
>> + status = "okay";
>> +};
>> +
>> +&iomuxc {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_gpio>;
>> +
>> + 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_SAI2_MCLK_GPIO4_IO27 0x19 /* PHY RST */
>> + MX8MM_IOMUXC_SAI2_TXC_GPIO4_IO25 0x19 /* ETH IRQ */
>> + >;
>> + };
>> +
>> + pinctrl_gpio_led: gpioledgrp {
>> + fsl,pins = <
>> + MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16 0x19
>> + MX8MM_IOMUXC_SAI1_RXD5_GPIO4_IO7 0x19
>> + MX8MM_IOMUXC_SAI1_RXD6_GPIO4_IO8 0x19
>> + MX8MM_IOMUXC_SAI1_RXD7_GPIO4_IO9 0x19
>> + MX8MM_IOMUXC_SAI1_TXD5_GPIO4_IO17 0x19
>> + MX8MM_IOMUXC_SAI1_TXD6_GPIO4_IO18 0x19
>> + MX8MM_IOMUXC_SAI1_TXD7_GPIO4_IO19 0x19
>> + >;
>> + };
>> +
>> + pinctrl_gpio: gpiogrp {
>> + 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
>> + 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_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
>> + >;
>> + };
>> +};
>> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
>> new file mode 100644
>> index 000000000000..6ff06d1cb23a
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
>> @@ -0,0 +1,294 @@
>> +// SPDX-License-Identifier: GPL-2.0+ OR MIT
>> +/*
>> + * Copyright (C) 2019 Kontron Electronics GmbH
>> + */
>> +
>> +#include "imx8mm.dtsi"
>> +
>> +/ {
>> + model = "Kontron i.MX8MM N801X SoM";
>> + compatible = "kontron,imx8mm-n801x-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 = <®_vdd_arm>;
>> +};
>> +
>> +&A53_1 {
>> + cpu-supply = <®_vdd_arm>;
>> +};
>> +
>> +&A53_2 {
>> + cpu-supply = <®_vdd_arm>;
>> +};
>> +
>> +&A53_3 {
>> + cpu-supply = <®_vdd_arm>;
>> +};
>> +
>> +&ddrc {
>> + operating-points-v2 = <&ddrc_opp_table>;
>> +
>> + ddrc_opp_table: opp-table {
>> + compatible = "operating-points-v2";
>> +
>> + opp-25M {
>> + opp-hz = /bits/ 64 <25000000>;
>> + };
>> +
>> + opp-100M {
>> + opp-hz = /bits/ 64 <100000000>;
>> + };
>> +
>> + opp-750M {
>> + opp-hz = /bits/ 64 <750000000>;
>> + };
>> + };
>
> Why is this a board level setting?
It is because currently this is not set at SoC level and all other
i.MX8MM boards do it at board level. Which doesn't mean it is correct,
but I don't know any better.
>
>> +};
>> +
>> +&ecspi1 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_ecspi1>;
>> + cs-gpios = <&gpio5 9 GPIO_ACTIVE_HIGH>;
>> + status = "okay";
>> +
>> + spi-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";
>> +
>> + pmic: pca9450@25 {
>
> Node name should be generic while label could be specific. So it should
> be better to name it like:
>
> pca9450: pmic@25
Ok, will change.
Thanks for reviewing!
>
> Shawn
>
>> + compatible = "nxp,pca9450a";
>> + reg = <0x25>;
>> + pinctrl-0 = <&pinctrl_pmic>;
>> + interrupt-parent = <&gpio1>;
>> + interrupts = <0 GPIO_ACTIVE_LOW>;
>> +
>> + regulators {
>> + reg_vdd_soc: BUCK1 {
>> + regulator-name = "BUCK1";
>> + regulator-min-microvolt = <800000>;
>> + regulator-max-microvolt = <900000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + regulator-ramp-delay = <3125>;
>> + };
>> +
>> + reg_vdd_arm: BUCK2 {
>> + regulator-name = "BUCK2";
>> + regulator-min-microvolt = <850000>;
>> + regulator-max-microvolt = <950000>;
>> + regulator-boot-on;
>> + regulator-ramp-delay = <3125>;
>> + nxp,dvs-run-voltage = <950000>;
>> + nxp,dvs-standby-voltage = <850000>;
>> + };
>> +
>> + reg_vdd_dram: BUCK3 {
>> + regulator-name = "BUCK3";
>> + regulator-min-microvolt = <850000>;
>> + regulator-max-microvolt = <900000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + reg_vdd_3v3: BUCK4 {
>> + regulator-name = "BUCK4";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + reg_vdd_1v8: BUCK5 {
>> + regulator-name = "BUCK5";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + reg_nvcc_dram: BUCK6 {
>> + regulator-name = "BUCK6";
>> + regulator-min-microvolt = <1100000>;
>> + regulator-max-microvolt = <1100000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + reg_nvcc_snvs: LDO1 {
>> + regulator-name = "LDO1";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + reg_vdd_snvs: LDO2 {
>> + regulator-compatible = "ldo2";
>> + regulator-name = "LDO2";
>> + regulator-min-microvolt = <900000>;
>> + regulator-max-microvolt = <900000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + reg_vdda: LDO3 {
>> + regulator-name = "LDO3";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + reg_vdd_phy: LDO4 {
>> + regulator-name = "LDO4";
>> + regulator-min-microvolt = <900000>;
>> + regulator-max-microvolt = <900000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + reg_nvcc_sd: LDO5 {
>> + regulator-name = "LDO5";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <3300000>;
>> + };
>> + };
>> + };
>> +};
>> +
>> +&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 = <®_vdd_3v3>;
>> + vqmmc-supply = <®_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 0x41
>> + >;
>> + };
>> +
>> + 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: usdhc1grp100mhz {
>> + 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: usdhc1grp200mhz {
>> + 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
>> + >;
>> + };
>> +};
>> --
>> 2.17.1
>>