imx: imx8mm: Add support for Kontron Electronics SL/BL i.MX8M-Mini boards (N801x)

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 matching evaluation boards (Board-Line) have 2 Ethernets, USB 2.0, HDMI/LVDS,
SD card, CAN, RS485 and much more.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Stefano Babic <sbabic@denx.de>
Tested-by: Heiko Thiery <heiko.thiery@gmail.com>
This commit is contained in:
Frieder Schrempf 2021-09-29 16:42:42 +02:00 committed by Stefano Babic
parent 23ce06b246
commit 9cab87f184
17 changed files with 3705 additions and 0 deletions

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@ -872,6 +872,8 @@ dtb-$(CONFIG_ARCH_IMX8M) += \
imx8mm-evk.dtb \
imx8mm-icore-mx8mm-ctouch2.dtb \
imx8mm-icore-mx8mm-edimm2.2.dtb \
imx8mm-kontron-n801x-s.dtb \
imx8mm-kontron-n801x-s-lvds.dtb \
imx8mm-venice.dtb \
imx8mm-venice-gw71xx-0x.dtb \
imx8mm-venice-gw72xx-0x.dtb \

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@ -0,0 +1,116 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2019 Kontron Electronics GmbH
*/
#include "imx8mm-kontron-n801x-s.dts"
/ {
model = "Kontron i.MX8MM N801X S LVDS";
compatible = "kontron,imx8mm-n801x-s-lvds", "fsl,imx8mm";
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&pwm1 0 50000>; /* period = 5000000 ns => f = 200 Hz */
power-supply = <&reg_vdd_24v>;
brightness-levels = <0 100>;
num-interpolated-steps = <100>;
default-brightness-level = <100>;
status = "okay";
};
reg_panel_pwr: regpanel-pwr {
compatible = "regulator-fixed";
regulator-name = "reg_panel_pwr";
regulator-always-on;
gpio = <&gpio3 19 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
reg_panel_rst: regpanel-rst {
compatible = "regulator-fixed";
regulator-name = "reg_panel_rst";
regulator-always-on;
gpio = <&gpio3 20 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
reg_panel_stby: regpanel-stby {
compatible = "regulator-fixed";
regulator-name = "reg_panel_stby";
regulator-always-on;
gpio = <&gpio3 21 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
reg_panel_hinv: regpanel-hinv {
compatible = "regulator-fixed";
regulator-name = "reg_panel_hinv";
regulator-always-on;
gpio = <&gpio3 24 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
reg_panel_vinv: regpanel-vinv {
compatible = "regulator-fixed";
regulator-name = "reg_panel_vinv";
gpio = <&gpio3 25 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
reg_vdd_24v: regulator-24v {
compatible = "regulator-fixed";
regulator-name = "reg-vdd-24v";
regulator-min-microvolt = <24000000>;
regulator-max-microvolt = <24000000>;
regulator-boot-on;
regulator-always-on;
status = "okay";
};
};
&i2c2 {
status = "okay";
gt911@5d {
compatible = "goodix,gt928";
reg = <0x5d>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_touch>;
interrupt-parent = <&gpio3>;
interrupts = <22 8>;
reset-gpios = <&gpio3 23 0>;
irq-gpios = <&gpio3 22 0>;
};
};
&pwm1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm1>;
status = "okay";
};
&iomuxc {
pinctrl_panel: panelgrp {
fsl,pins = <
MX8MM_IOMUXC_SAI5_RXFS_GPIO3_IO19 0x19 /* TFT-PWR - family */
MX8MM_IOMUXC_SAI5_RXC_GPIO3_IO20 0x19 /* RESET family */
MX8MM_IOMUXC_SAI5_RXD0_GPIO3_IO21 0x19 /* STBY family */
MX8MM_IOMUXC_SAI5_RXD3_GPIO3_IO24 0x19 /* HINV panel */
MX8MM_IOMUXC_SAI5_MCLK_GPIO3_IO25 0x19 /* VINV panel */
>;
};
pinctrl_pwm1: pwm1grp {
fsl,pins = <
MX8MM_IOMUXC_SPDIF_EXT_CLK_PWM1_OUT 0x6
>;
};
pinctrl_touch: touchgrp {
fsl,pins = <
MX8MM_IOMUXC_SAI5_RXD1_GPIO3_IO22 0x19 /* Touch Interrupt */
MX8MM_IOMUXC_SAI5_RXD2_GPIO3_IO23 0x19 /* Touch Reset */
>;
};
};

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@ -0,0 +1,274 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2019 Kontron Electronics GmbH
*/
#include "imx8mm-u-boot.dtsi"
/ {
aliases {
usb0 = &usbotg1;
usb1 = &usbotg2;
};
binman: binman {
multiple-images;
};
wdt-reboot {
compatible = "wdt-reboot";
wdt = <&wdog1>;
u-boot,dm-spl;
};
firmware {
optee {
compatible = "linaro,optee-tz";
method = "smc";
};
};
};
&fec1 {
phy-mode = "rgmii-rxid";
};
&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;
fsl,pins = <
MX8MM_IOMUXC_GPIO1_IO00_GPIO1_IO0 0x141
/* Disable Pullup for SD_VSEL */
MX8MM_IOMUXC_GPIO1_IO04_GPIO1_IO4 0x41
>;
};
&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;
};
&binman {
u-boot-spl-ddr {
filename = "u-boot-spl-ddr.bin";
pad-byte = <0xff>;
align-size = <4>;
align = <4>;
u-boot-spl {
align-end = <4>;
};
blob_1: blob-ext@1 {
filename = "lpddr4_pmu_train_1d_imem.bin";
size = <0x8000>;
};
blob_2: blob-ext@2 {
filename = "lpddr4_pmu_train_1d_dmem.bin";
size = <0x4000>;
};
blob_3: blob-ext@3 {
filename = "lpddr4_pmu_train_2d_imem.bin";
size = <0x8000>;
};
blob_4: blob-ext@4 {
filename = "lpddr4_pmu_train_2d_dmem.bin";
size = <0x4000>;
};
};
spl {
filename = "spl.bin";
mkimage {
args = "-n spl/u-boot-spl.cfgout -T imx8mimage -e 0x7e1000";
blob {
filename = "u-boot-spl-ddr.bin";
};
};
};
itb {
filename = "u-boot.itb";
fit {
description = "Configuration to load ATF before U-Boot";
#address-cells = <1>;
fit,external-offset = <CONFIG_FIT_EXTERNAL_OFFSET>;
images {
uboot {
description = "U-Boot (64-bit)";
type = "standalone";
arch = "arm64";
compression = "none";
load = <CONFIG_SYS_TEXT_BASE>;
uboot_blob: blob-ext {
filename = "u-boot-nodtb.bin";
};
};
atf {
description = "ARM Trusted Firmware";
type = "firmware";
arch = "arm64";
compression = "none";
load = <0x920000>;
entry = <0x920000>;
atf_blob: blob-ext {
filename = "bl31.bin";
};
};
fdt {
description = "NAME";
type = "flat_dt";
compression = "none";
uboot_fdt_blob: blob-ext {
filename = "u-boot.dtb";
};
};
};
configurations {
default = "conf";
conf {
description = "NAME";
firmware = "uboot";
loadables = "atf";
fdt = "fdt";
};
};
};
};
imx-boot {
filename = "flash.bin";
pad-byte = <0x00>;
spl: blob-ext@1 {
offset = <0x0>;
filename = "spl.bin";
};
uboot: blob-ext@2 {
offset = <0x57c00>;
filename = "u-boot.itb";
};
};
u-boot-update {
filename = "firmware-update.itb";
fit {
description = "Configuration for firmware update file";
images {
flash-bin {
description = "U-Boot flash image";
type = "firmware";
os = "u-boot";
arch = "arm";
compress = "none";
load = <0>; /* unused */
blob {
filename = "flash.bin";
};
};
};
};
};
};

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@ -0,0 +1,388 @@
// SPDX-License-Identifier: GPL-2.0+ OR MIT
/*
* Copyright (C) 2019 Kontron Electronics GmbH
*/
/dts-v1/;
#include "imx8mm-kontron-n801x-som.dtsi"
#include <dt-bindings/net/mscc-phy-vsc8531.h>
/ {
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_HIGH>;
enable-active-high;
regulator-always-on;
};
reg_vdd_5v: regulator-5v {
compatible = "regulator-fixed";
regulator-name = "vdd-5v";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
};
};
&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 = <10000000>;
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";
};
&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 {
compatible = "ethernet-phy-id0007.0570";
reg = <0>;
reset-assert-us = <100>;
reset-deassert-us = <100>;
reset-gpios = <&gpio4 27 GPIO_ACTIVE_LOW>;
vsc8531,led-0-mode = <VSC8531_LINK_100_1000_ACTIVITY>;
vsc8531,led-1-mode = <VSC8531_LINK_ACTIVITY>;
vsc8531,led-0-combine-disable;
};
};
};
&gpio4 {
dsi_mux_sel: dsi_mux_sel {
gpio-hog;
gpios = <14 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "dsi-mux-sel";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_dsi_sel>;
};
dsi_mux_oe {
gpio-hog;
gpios = <15 GPIO_ACTIVE_LOW>;
output-high;
line-name = "dsi-mux-oe";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_dsi_oe>;
};
};
&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";
over-current-active-low;
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>;
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-names = "default";
pinctrl-0 = <&pinctrl_gpio>;
pinctrl_can: cangrp {
fsl,pins = <
MX8MM_IOMUXC_SAI3_RXFS_GPIO4_IO28 0x19
>;
};
pinctrl_dsi_sel: dsiselgrp {
fsl,pins = <
MX8MM_IOMUXC_SAI1_TXD2_GPIO4_IO14 0x19
>;
};
pinctrl_dsi_oe: dsioegrp {
fsl,pins = <
MX8MM_IOMUXC_SAI1_TXD3_GPIO4_IO15 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
>;
};
pinctrl_usdhc2_100mhz: usdhc2grp100mhz {
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
>;
};
pinctrl_usdhc2_200mhz: usdhc2grp200mhz {
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
>;
};
};

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@ -0,0 +1,299 @@
// 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 = <&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-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";
pca9450: pmic@25 {
compatible = "nxp,pca9450a";
reg = <0x25>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio1>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
sd-vsel-gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>;
regulators {
reg_vdd_soc: BUCK1 {
regulator-name = "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 = "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 = "buck3";
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <950000>;
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-name = "ldo2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <800000>;
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 = <&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
MX8MM_IOMUXC_GPIO1_IO04_GPIO1_IO4 0x141
>;
};
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
>;
};
};

View File

@ -75,6 +75,13 @@ config TARGET_IMX8MM_VENICE
select SUPPORT_SPL
select IMX8M_LPDDR4
config TARGET_KONTRON_MX8MM
bool "Kontron Electronics N80xx"
select BINMAN
select IMX8MM
select SUPPORT_SPL
select IMX8M_LPDDR4
config TARGET_IMX8MN_EVK
bool "imx8mn LPDDR4 EVK board"
select BINMAN
@ -157,6 +164,7 @@ source "board/freescale/imx8mn_evk/Kconfig"
source "board/freescale/imx8mp_evk/Kconfig"
source "board/gateworks/venice/Kconfig"
source "board/google/imx8mq_phanbell/Kconfig"
source "board/kontron/sl-mx8mm/Kconfig"
source "board/phytec/phycore_imx8mm/Kconfig"
source "board/phytec/phycore_imx8mp/Kconfig"
source "board/ronetix/imx8mq-cm/Kconfig"

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@ -0,0 +1,15 @@
if TARGET_KONTRON_MX8MM
config SYS_BOARD
string
default "sl-mx8mm"
config SYS_VENDOR
string
default "kontron"
config SYS_CONFIG_NAME
string
default "kontron-sl-mx8mm"
endif

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@ -0,0 +1,8 @@
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: board/kontron/sl-mx8mm
F: configs/kontron-sl-mx8mm_defconfig
F: doc/board/kontron/sl-mx8mm.rst
F: include/configs/kontron-sl-mx8mm.h

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@ -0,0 +1,9 @@
# SPDX-License-Identifier: GPL-2.0+
# (C) Copyright 2019 Kontron Electronics GmbH
obj-y := sl-mx8mm.o
ifdef CONFIG_SPL_BUILD
obj-y += spl.o
obj-$(CONFIG_IMX8M_LPDDR4) += lpddr4_timing.o
endif

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@ -0,0 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2019 Kontron Electronics GmbH
*/
#define __ASSEMBLY__
BOOT_FROM sd
LOADER u-boot-spl-ddr.bin 0x7E1000

File diff suppressed because it is too large Load Diff

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@ -0,0 +1,99 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2019 Kontron Electronics GmbH
*/
#include <asm/arch/imx-regs.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <fdt_support.h>
#include <linux/errno.h>
#include <net.h>
DECLARE_GLOBAL_DATA_PTR;
int board_phys_sdram_size(phys_size_t *size)
{
u32 ddr_size = readl(M4_BOOTROM_BASE_ADDR);
if (ddr_size == 4) {
*size = 0x100000000;
} else if (ddr_size == 3) {
*size = 0xc0000000;
} else if (ddr_size == 2) {
*size = 0x80000000;
} else if (ddr_size == 1) {
*size = 0x40000000;
} else {
printf("Unknown DDR type!!!\n");
*size = 0x40000000;
}
return 0;
}
/*
* If the SoM is mounted on a baseboard with a USB ethernet controller,
* there might be an additional MAC address programmed to the MAC OTP fuses.
* Although the i.MX8MM has only one MAC, the MAC0, MAC1 and MAC2 registers
* in the OTP fuses can still be used to store two separate addresses.
* Try to read the secondary address from MAC1 and MAC2 and adjust the
* devicetree so Linux can pick up the MAC address.
*/
int fdt_set_usb_eth_addr(void *blob)
{
u32 value = readl(OCOTP_BASE_ADDR + 0x660);
unsigned char mac[6];
int node, ret;
mac[0] = value >> 24;
mac[1] = value >> 16;
mac[2] = value >> 8;
mac[3] = value;
value = readl(OCOTP_BASE_ADDR + 0x650);
mac[4] = value >> 24;
mac[5] = value >> 16;
node = fdt_path_offset(blob, fdt_get_alias(blob, "ethernet1"));
if (node < 0) {
/*
* There is no node for the USB ethernet in the devicetree. Just skip.
*/
return 0;
}
if (is_zero_ethaddr(mac)) {
printf("\nNo MAC address for USB ethernet set in OTP fuses!\n");
return 0;
}
if (!is_valid_ethaddr(mac)) {
printf("\nInvalid MAC address for USB ethernet set in OTP fuses!\n");
return -EINVAL;
}
ret = fdt_setprop(blob, node, "local-mac-address", &mac, 6);
if (ret)
ret = fdt_setprop(blob, node, "mac-address", &mac, 6);
if (ret)
printf("\nMissing mac-address or local-mac-address property in dt, skip setting MAC address for USB ethernet\n");
return 0;
}
int ft_board_setup(void *blob, struct bd_info *bd)
{
int ret = fdt_set_usb_eth_addr(blob);
if (ret)
return ret;
return fdt_fixup_memory(blob, PHYS_SDRAM, gd->ram_size);
}
int board_init(void)
{
return 0;
}

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@ -0,0 +1,321 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2019 Kontron Electronics GmbH
*/
#include <asm/arch/imx8mm_pins.h>
#include <asm/arch/clock.h>
#include <asm/arch/ddr.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
#include <asm/global_data.h>
#include <asm/gpio.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/iomux-v3.h>
#include <dm/uclass.h>
#include <hang.h>
#include <i2c.h>
#include <init.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <power/pca9450.h>
#include <power/pmic.h>
#include <spl.h>
DECLARE_GLOBAL_DATA_PTR;
enum {
BOARD_TYPE_KTN_N801X,
BOARD_TYPE_KTN_N801X_LVDS,
BOARD_TYPE_MAX
};
#define GPIO_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE)
#define I2C_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE)
#define UART_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_FSEL1)
#define WDOG_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE)
#define TOUCH_RESET_GPIO IMX_GPIO_NR(3, 23)
static iomux_v3_cfg_t const i2c1_pads[] = {
IMX8MM_PAD_I2C1_SCL_I2C1_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL) | MUX_MODE_SION,
IMX8MM_PAD_I2C1_SDA_I2C1_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL) | MUX_MODE_SION
};
static iomux_v3_cfg_t const i2c2_pads[] = {
IMX8MM_PAD_I2C2_SCL_I2C2_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL) | MUX_MODE_SION,
IMX8MM_PAD_I2C2_SDA_I2C2_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL) | MUX_MODE_SION
};
static iomux_v3_cfg_t const touch_gpio[] = {
IMX8MM_PAD_SAI5_RXD2_GPIO3_IO23 | MUX_PAD_CTRL(GPIO_PAD_CTRL)
};
static iomux_v3_cfg_t const uart_pads[] = {
IMX8MM_PAD_UART3_RXD_UART3_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
IMX8MM_PAD_UART3_TXD_UART3_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
};
static iomux_v3_cfg_t const wdog_pads[] = {
IMX8MM_PAD_GPIO1_IO02_WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL),
};
int spl_board_boot_device(enum boot_device boot_dev_spl)
{
switch (boot_dev_spl) {
case USB_BOOT:
return BOOT_DEVICE_BOARD;
case SPI_NOR_BOOT:
return BOOT_DEVICE_SPI;
case SD1_BOOT:
case MMC1_BOOT:
return BOOT_DEVICE_MMC1;
case SD2_BOOT:
case MMC2_BOOT:
return BOOT_DEVICE_MMC2;
default:
return BOOT_DEVICE_NONE;
}
}
bool check_ram_available(long size)
{
long sz = get_ram_size((long *)PHYS_SDRAM, size);
if (sz == size)
return true;
return false;
}
static void spl_dram_init(void)
{
u32 size = 0;
/*
* Try the default DDR settings in lpddr4_timing.c to
* comply with the Micron 4GB DDR.
*/
if (!ddr_init(&dram_timing) && check_ram_available(SZ_4G)) {
size = 4;
} else {
/*
* Overwrite some values to comply with the Micron 1GB/2GB DDRs.
*/
dram_timing.ddrc_cfg[2].val = 0xa1080020;
dram_timing.ddrc_cfg[37].val = 0x1f;
dram_timing.fsp_msg[0].fsp_cfg[9].val = 0x110;
dram_timing.fsp_msg[0].fsp_cfg[21].val = 0x1;
dram_timing.fsp_msg[1].fsp_cfg[10].val = 0x110;
dram_timing.fsp_msg[1].fsp_cfg[22].val = 0x1;
dram_timing.fsp_msg[2].fsp_cfg[10].val = 0x110;
dram_timing.fsp_msg[2].fsp_cfg[22].val = 0x1;
dram_timing.fsp_msg[3].fsp_cfg[10].val = 0x110;
dram_timing.fsp_msg[3].fsp_cfg[22].val = 0x1;
if (!ddr_init(&dram_timing)) {
if (check_ram_available(SZ_2G))
size = 2;
else if (check_ram_available(SZ_1G))
size = 1;
}
}
if (size == 0) {
printf("Failed to initialize DDR RAM!\n");
size = 1;
}
printf("Kontron SL i.MX8MM (N801X) module, %u GB RAM detected\n", size);
writel(size, M4_BOOTROM_BASE_ADDR);
}
static void touch_reset(void)
{
/*
* Toggle the reset of the touch panel.
*/
imx_iomux_v3_setup_multiple_pads(touch_gpio, ARRAY_SIZE(touch_gpio));
gpio_request(TOUCH_RESET_GPIO, "touch_reset");
gpio_direction_output(TOUCH_RESET_GPIO, 0);
mdelay(20);
gpio_direction_output(TOUCH_RESET_GPIO, 1);
mdelay(20);
}
static int i2c_detect(u8 bus, u16 addr)
{
struct udevice *udev;
int ret;
/*
* Try to probe the touch controller to check if an LVDS panel is
* connected.
*/
ret = i2c_get_chip_for_busnum(bus, addr, 0, &udev);
if (ret == 0)
return 0;
return 1;
}
int do_board_detect(void)
{
bool lvds = false;
/*
* Check the I2C touch controller to detect a LVDS panel.
*/
imx_iomux_v3_setup_multiple_pads(i2c2_pads, ARRAY_SIZE(i2c2_pads));
touch_reset();
if (i2c_detect(1, 0x5d) == 0) {
printf("Touch controller detected, assuming LVDS panel...\n");
lvds = true;
}
/*
* Check the I2C PMIC to detect the deprecated SoM with DA9063.
*/
imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
if (i2c_detect(0, 0x58) == 0) {
printf("### ATTENTION: DEPRECATED SOM REVISION (N8010 Rev0) DETECTED! ###\n");
printf("### THIS HW IS NOT SUPPRTED AND BOOTING WILL PROBABLY FAIL ###\n");
printf("### PLEASE UPGRADE TO LATEST MODULE ###\n");
}
if (lvds)
gd->board_type = BOARD_TYPE_KTN_N801X_LVDS;
else
gd->board_type = BOARD_TYPE_KTN_N801X;
return 0;
}
int board_fit_config_name_match(const char *name)
{
if (gd->board_type == BOARD_TYPE_KTN_N801X_LVDS && is_imx8mm() &&
!strncmp(name, "imx8mm-kontron-n801x-s-lvds", 27))
return 0;
if (gd->board_type == BOARD_TYPE_KTN_N801X && is_imx8mm() &&
!strncmp(name, "imx8mm-kontron-n801x-s", 22))
return 0;
return -1;
}
void spl_board_init(void)
{
struct udevice *dev;
int ret;
puts("Normal Boot\n");
ret = uclass_get_device_by_name(UCLASS_CLK,
"clock-controller@30380000",
&dev);
if (ret < 0)
printf("Failed to find clock node. Check device tree\n");
}
int board_early_init_f(void)
{
struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
set_wdog_reset(wdog);
imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
return 0;
}
static int power_init_board(void)
{
struct udevice *dev;
int ret = pmic_get("pmic@25", &dev);
if (ret == -ENODEV)
puts("No pmic found\n");
if (ret)
return ret;
/* BUCKxOUT_DVS0/1 control BUCK123 output, clear PRESET_EN */
pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29);
/* increase VDD_DRAM to 0.95V for 1.5GHz DDR */
pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x1c);
/* set VDD_SNVS_0V8 from default 0.85V to 0.8V */
pmic_reg_write(dev, PCA9450_LDO2CTRL, 0xC0);
/* set WDOG_B_CFG to cold reset */
pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1);
return 0;
}
void board_init_f(ulong dummy)
{
int ret;
arch_cpu_init();
init_uart_clk(2);
board_early_init_f();
timer_init();
preloader_console_init();
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
ret = spl_init();
if (ret) {
debug("spl_init() failed: %d\n", ret);
hang();
}
enable_tzc380();
/* PMIC initialization */
power_init_board();
/* DDR initialization */
spl_dram_init();
/* Detect the board type */
do_board_detect();
board_init_r(NULL, 0);
}
void board_boot_order(u32 *spl_boot_list)
{
u32 bootdev = spl_boot_device();
/*
* The default boot fuse settings use the SD card (MMC2) as primary
* boot device, but allow SPI NOR as a fallback boot device.
* We can't detect the fallback case and spl_boot_device() will return
* BOOT_DEVICE_MMC2 despite the actual boot device being SPI NOR.
* Therefore we try to load U-Boot proper vom SPI NOR after loading
* from MMC has failed.
*/
spl_boot_list[0] = bootdev;
switch (bootdev) {
case BOOT_DEVICE_MMC1:
case BOOT_DEVICE_MMC2:
spl_boot_list[1] = BOOT_DEVICE_SPI;
break;
}
}

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@ -0,0 +1,140 @@
CONFIG_ARM=y
CONFIG_ARCH_IMX8M=y
CONFIG_SYS_TEXT_BASE=0x40200000
CONFIG_SPL_GPIO=y
CONFIG_SPL_LIBCOMMON_SUPPORT=y
CONFIG_SPL_LIBGENERIC_SUPPORT=y
CONFIG_SYS_MALLOC_F_LEN=0x10000
CONFIG_ENV_SIZE=0x10000
CONFIG_ENV_OFFSET=0x1f0000
CONFIG_ENV_SECT_SIZE=0x10000
CONFIG_DM_GPIO=y
CONFIG_SPL_DM_SPI=y
CONFIG_DEFAULT_DEVICE_TREE="imx8mm-kontron-n801x-s"
CONFIG_SPL_TEXT_BASE=0x7E1000
CONFIG_TARGET_KONTRON_MX8MM=y
CONFIG_SPL_MMC_SUPPORT=y
CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_BOOTCOUNT_BOOTLIMIT=3
CONFIG_SPL=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y
CONFIG_SPL_SPI_SUPPORT=y
CONFIG_DISTRO_DEFAULTS=y
CONFIG_FIT=y
CONFIG_FIT_EXTERNAL_OFFSET=0x3000
CONFIG_SPL_LOAD_FIT=y
# CONFIG_USE_SPL_FIT_GENERATOR is not set
CONFIG_OF_BOARD_SETUP=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/kontron/sl-mx8mm/imximage.cfg"
CONFIG_BOARD_TYPES=y
CONFIG_SPL_BOARD_INIT=y
CONFIG_SPL_SEPARATE_BSS=y
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x300
# CONFIG_SPL_FIT_IMAGE_TINY is not set
CONFIG_SPL_I2C=y
CONFIG_SPL_DM_SPI_FLASH=y
CONFIG_SPL_POWER=y
CONFIG_SPL_SPI_LOAD=y
CONFIG_SYS_SPI_U_BOOT_OFFS=0x58000
CONFIG_SPL_WATCHDOG=y
CONFIG_SPL_ATF=y
CONFIG_CMD_NVEDIT_EFI=y
# CONFIG_CMD_LZMADEC is not set
# CONFIG_CMD_UNZIP is not set
CONFIG_CMD_CLK=y
CONFIG_CMD_DFU=y
CONFIG_CMD_FUSE=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_I2C=y
CONFIG_CMD_MMC=y
CONFIG_CMD_USB=y
CONFIG_CMD_WDT=y
CONFIG_CMD_CACHE=y
CONFIG_CMD_EFIDEBUG=y
CONFIG_CMD_RTC=y
CONFIG_CMD_TIME=y
CONFIG_CMD_PMIC=y
CONFIG_CMD_REGULATOR=y
CONFIG_CMD_EXT4_WRITE=y
CONFIG_OF_CONTROL=y
CONFIG_SPL_OF_CONTROL=y
CONFIG_OF_LIST="imx8mm-kontron-n801x-s imx8mm-kontron-n801x-s-lvds"
CONFIG_ENV_IS_IN_SPI_FLASH=y
CONFIG_USE_ENV_SPI_BUS=y
CONFIG_ENV_SPI_BUS=0
CONFIG_USE_ENV_SPI_MAX_HZ=y
CONFIG_ENV_SPI_MAX_HZ=80000000
CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
CONFIG_NET_RANDOM_ETHADDR=y
CONFIG_SPL_DM=y
CONFIG_SPL_DM_SEQ_ALIAS=y
CONFIG_BOOTCOUNT_LIMIT=y
CONFIG_BOOTCOUNT_ENV=y
CONFIG_SPL_CLK_COMPOSITE_CCF=y
CONFIG_CLK_COMPOSITE_CCF=y
CONFIG_SPL_CLK_IMX8MM=y
CONFIG_CLK_IMX8MM=y
CONFIG_DFU_SF=y
CONFIG_MXC_GPIO=y
CONFIG_DM_I2C=y
CONFIG_SYS_I2C_MXC=y
CONFIG_SUPPORT_EMMC_BOOT=y
CONFIG_MMC_IO_VOLTAGE=y
CONFIG_MMC_UHS_SUPPORT=y
CONFIG_MMC_HS400_ES_SUPPORT=y
CONFIG_MMC_HS400_SUPPORT=y
CONFIG_FSL_ESDHC_IMX=y
CONFIG_MTD=y
CONFIG_DM_MTD=y
CONFIG_DM_SPI_FLASH=y
CONFIG_SF_DEFAULT_SPEED=80000000
CONFIG_SPI_FLASH_MACRONIX=y
# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
CONFIG_SPI_FLASH_MTD=y
CONFIG_PHYLIB=y
CONFIG_PHY_MSCC=y
CONFIG_DM_ETH=y
CONFIG_DM_ETH_PHY=y
CONFIG_PHY_GIGE=y
CONFIG_FEC_MXC=y
CONFIG_RGMII=y
CONFIG_MII=y
CONFIG_PINCTRL=y
CONFIG_SPL_PINCTRL=y
CONFIG_PINCTRL_IMX8M=y
CONFIG_POWER_DOMAIN=y
CONFIG_IMX8M_POWER_DOMAIN=y
CONFIG_DM_PMIC=y
CONFIG_DM_PMIC_PCA9450=y
CONFIG_SPL_DM_PMIC_PCA9450=y
CONFIG_DM_REGULATOR=y
CONFIG_DM_RTC=y
CONFIG_RTC_RV8803=y
CONFIG_CONS_INDEX=2
CONFIG_MXC_UART=y
CONFIG_SPI=y
CONFIG_DM_SPI=y
CONFIG_MXC_SPI=y
CONFIG_SYSRESET=y
CONFIG_SPL_SYSRESET=y
CONFIG_SYSRESET_PSCI=y
CONFIG_SYSRESET_WATCHDOG=y
CONFIG_DM_THERMAL=y
CONFIG_IMX_TMU=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_MANUFACTURER="FSL"
CONFIG_USB_GADGET_VENDOR_NUM=0x0525
CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
CONFIG_CI_UDC=y
CONFIG_USB_GADGET_DOWNLOAD=y
# CONFIG_WATCHDOG_AUTOSTART is not set
CONFIG_IMX_WATCHDOG=y
# CONFIG_HEXDUMP is not set
CONFIG_EFI_SET_TIME=y
CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
CONFIG_EFI_CAPSULE_ON_DISK=y
CONFIG_EFI_IGNORE_OSINDICATIONS=y
CONFIG_EFI_CAPSULE_FIRMWARE_FIT=y

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@ -8,3 +8,4 @@ Kontron
sl28
sl-mx6ul
sl-mx8mm

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@ -0,0 +1,85 @@
.. SPDX-License-Identifier: GPL-2.0+
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 matching evaluation boards (Board-Line) have two Ethernet ports, USB 2.0,
HDMI/LVDS, SD card, CAN, RS485, RS232 and much more.
Quick Start
-----------
- Get and Build the Trusted Firmware-A (TF-A)
- Get the DDR firmware
- Build U-Boot
- Boot
Get and Build the Trusted Firmware-A (TF-A)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Note: builddir is U-Boot build directory (source directory for in-tree builds)
There are two sources for the TF-A. Mainline and NXP. Get the one you prefer
(support and features might differ).
**NXP's imx-atf**
1. Get TF-A from: https://source.codeaurora.org/external/imx/imx-atf, branch: imx_5.4.70_2.3.0
2. Apply the patch to select the correct UART for the console, otherwise the TF-A will lock up during boot.
3. Build
.. code-block:: bash
$ make PLAT=imx8mm bl31
$ cp build/imx8mm/release/bl31.bin $(builddir)
**Mainline TF-A**
1. Get TF-A from: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/, tag: v2.4
2. Build
.. code-block:: bash
$ make PLAT=imx8mm CROSS_COMPILE=aarch64-linux-gnu- IMX_BOOT_UART_BASE="0x30880000" bl31
$ cp build/imx8mm/release/bl31.bin $(builddir)
Get the DDR firmware
^^^^^^^^^^^^^^^^^^^^
.. code-block:: bash
$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.9.bin
$ chmod +x firmware-imx-8.9.bin
$ ./firmware-imx-8.9.bin
$ cp firmware-imx-8.9/firmware/ddr/synopsys/lpddr4*.bin $(builddir)
Build U-Boot
^^^^^^^^^^^^
.. code-block:: bash
$ make kontron-sl-mx8mm_defconfig
$ export ATF_LOAD_ADDR=0x920000
$ make
Burn the flash.bin to SD card at an offset of 33 KiB:
.. code-block:: bash
$ dd if=flash.bin of=/dev/sd[x] bs=1K seek=33 conv=notrunc
Boot
^^^^
Put the SD card in the slot on the board and apply power.
Further Information
-------------------
The bootloader configuration is setup to be used with kernel FIT images. Legacy
images might not be working out of the box.
Please see https://docs.kontron-electronics.de for further vendor documentation.

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@ -0,0 +1,87 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2019 Kontron Electronics GmbH
*
* Configuration settings for the Kontron SL/BL i.MX8M-Mini boards and modules (N81xx).
*/
#ifndef __KONTRON_MX8MM_CONFIG_H
#define __KONTRON_MX8MM_CONFIG_H
#include <asm/arch/imx-regs.h>
#include <linux/sizes.h>
#ifdef CONFIG_SPL_BUILD
#include <config.h>
#endif
/* RAM */
#define PHYS_SDRAM DDR_CSD1_BASE_ADDR
#define PHYS_SDRAM_SIZE (SZ_4G)
#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
#define CONFIG_SYS_INIT_RAM_ADDR 0x40000000
#define CONFIG_SYS_INIT_RAM_SIZE 0x200000
#define CONFIG_SYS_MALLOC_LEN SZ_64M
#define CONFIG_SYS_HZ 1000
#define CONFIG_SYS_INIT_SP_OFFSET \
(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
#define CONFIG_SYS_INIT_SP_ADDR \
(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
/* Board and environment settings */
#define CONFIG_MXC_UART_BASE UART3_BASE_ADDR
#define CONFIG_HOSTNAME "kontron-mx8mm"
#ifdef CONFIG_USB_EHCI_HCD
#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
#define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)
#define CONFIG_MXC_USB_FLAGS 0
#define CONFIG_USB_MAX_CONTROLLER_COUNT 2
#endif
#ifndef CONFIG_SPL_BUILD
#define BOOT_TARGET_DEVICES(func) \
func(MMC, mmc, 1) \
func(MMC, mmc, 0) \
func(USB, usb, 0) \
func(PXE, pxe, na)
#include <config_distro_bootcmd.h>
/* Do not try to probe USB net adapters for net boot */
#undef BOOTENV_RUN_NET_USB_START
#define BOOTENV_RUN_NET_USB_START
#else
#define BOOTENV
#endif
#define CONFIG_LOADADDR 0x40480000
#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
#define CONFIG_SYS_BOOTM_LEN SZ_64M
#define CONFIG_SPL_MAX_SIZE (148 * SZ_1K)
#define CONFIG_FSL_USDHC
#ifdef CONFIG_SPL_BUILD
#define CONFIG_SPL_STACK 0x91fff0
#define CONFIG_SPL_BSS_START_ADDR 0x910000
#define CONFIG_SPL_BSS_MAX_SIZE SZ_8K
#define CONFIG_SYS_SPL_MALLOC_START 0x42200000
#define CONFIG_SYS_SPL_MALLOC_SIZE SZ_512K
/* malloc f used before GD_FLG_FULL_MALLOC_INIT set */
#define CONFIG_MALLOC_F_ADDR 0x930000
#endif
#define FEC_QUIRK_ENET_MAC
#define CONFIG_EXTRA_ENV_SETTINGS \
"kernel_addr_r=0x42000000\0" \
"fdt_addr_r=0x44000000\0" \
"ramdisk_addr_r=0x46400000\0" \
"pxefile_addr_r=0x46000000\0" \
"scriptaddr=0x46000000\0" \
"dfu_alt_info=sf 0:0=flash-bin raw 0x400 0x1f0000\0" \
"bootdelay=3\0" \
"hostname=" CONFIG_HOSTNAME "\0" \
BOOTENV
#endif /* __KONTRON_MX8MM_CONFIG_H */