imx8mn_var_som: Add support for Variscite VAR-SOM-MX8M-NANO board

Add support for iMX8MN VAR-SOM-MX8M-NANO board. Enables support for:

- 1GiB DDR4 RAM
- 16 GiB eMMC
- SD card
- Gigabit ethernet
- USBOTG1 peripheral - fastboot

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
This commit is contained in:
Ariel D'Alessandro 2021-11-23 13:33:30 -03:00 committed by Stefano Babic
parent 4821074bec
commit c4c1ed68c1
17 changed files with 2003 additions and 0 deletions

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@ -914,6 +914,7 @@ dtb-$(CONFIG_ARCH_IMX8M) += \
imx8mn-ddr4-evk.dtb \
imx8mq-cm.dtb \
imx8mn-evk.dtb \
imx8mn-var-som-symphony.dtb \
imx8mq-evk.dtb \
imx8mm-beacon-kit.dtb \
imx8mn-beacon-kit.dtb \

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@ -0,0 +1,256 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2021 Collabora Ltd.
*/
/ {
binman: binman {
multiple-images;
};
wdt-reboot {
compatible = "wdt-reboot";
wdt = <&wdog1>;
u-boot,dm-spl;
};
};
&{/soc@0} {
u-boot,dm-pre-reloc;
u-boot,dm-spl;
};
&{/soc@0/bus@30800000/i2c@30a20000/pmic@4b} {
u-boot,dm-spl;
};
&{/soc@0/bus@30800000/i2c@30a20000/pmic@4b/regulators} {
u-boot,dm-spl;
};
&aips1 {
u-boot,dm-pre-reloc;
u-boot,dm-spl;
};
&aips3 {
u-boot,dm-spl;
};
&aips4 {
u-boot,dm-spl;
};
&clk {
u-boot,dm-pre-reloc;
u-boot,dm-spl;
/delete-property/ assigned-clocks;
/delete-property/ assigned-clock-parents;
/delete-property/ assigned-clock-rates;
};
&gpio1 {
u-boot,dm-spl;
};
&gpio2 {
u-boot,dm-spl;
};
&gpio4 {
u-boot,dm-spl;
};
&i2c1 {
u-boot,dm-spl;
};
&iomuxc {
u-boot,dm-spl;
};
&osc_24m {
u-boot,dm-pre-reloc;
u-boot,dm-spl;
};
&pinctrl_i2c1 {
u-boot,dm-spl;
};
&pinctrl_pmic {
u-boot,dm-spl;
};
&pinctrl_reg_usdhc2_vmmc {
u-boot,dm-spl;
};
&pinctrl_uart4 {
u-boot,dm-spl;
};
&pinctrl_usdhc2 {
u-boot,dm-spl;
};
&pinctrl_usdhc3 {
u-boot,dm-spl;
};
&pinctrl_wdog {
u-boot,dm-spl;
};
&uart4 {
u-boot,dm-spl;
};
&usdhc2 {
u-boot,dm-spl;
};
&usdhc3 {
u-boot,dm-spl;
};
&wdog1 {
u-boot,dm-spl;
};
&binman {
u-boot-spl-ddr {
align = <4>;
align-size = <4>;
filename = "u-boot-spl-ddr.bin";
pad-byte = <0xff>;
u-boot-spl {
align-end = <4>;
filename = "u-boot-spl.bin";
};
1d-imem {
filename = "ddr4_imem_1d.bin";
size = <0x8000>;
type = "blob-ext";
};
1d_dmem {
filename = "ddr4_dmem_1d.bin";
size = <0x4000>;
type = "blob-ext";
};
2d_imem {
filename = "ddr4_imem_2d.bin";
size = <0x8000>;
type = "blob-ext";
};
2d_dmem {
filename = "ddr4_dmem_2d.bin";
size = <0x4000>;
type = "blob-ext";
};
};
spl {
filename = "spl.bin";
mkimage {
args = "-n spl/u-boot-spl.cfgout -T imx8mimage -e 0x912000";
blob {
filename = "u-boot-spl-ddr.bin";
};
};
};
itb {
filename = "u-boot.itb";
fit {
description = "Configuration to load ATF before U-Boot";
fit,external-offset = <CONFIG_FIT_EXTERNAL_OFFSET>;
fit,fdt-list = "of-list";
#address-cells = <1>;
images {
uboot {
arch = "arm64";
compression = "none";
description = "U-Boot (64-bit)";
load = <CONFIG_SYS_TEXT_BASE>;
type = "standalone";
uboot_blob {
filename = "u-boot-nodtb.bin";
type = "blob-ext";
};
};
atf {
arch = "arm64";
compression = "none";
description = "ARM Trusted Firmware";
entry = <0x960000>;
load = <0x960000>;
type = "firmware";
atf_blob {
filename = "bl31.bin";
type = "blob-ext";
};
};
binman_fip: fip {
arch = "arm64";
compression = "none";
description = "Trusted Firmware FIP";
load = <0x40310000>;
type = "firmware";
};
@fdt-SEQ {
compression = "none";
description = "NAME";
type = "flat_dt";
uboot_fdt_blob {
filename = "u-boot.dtb";
type = "blob-ext";
};
};
};
configurations {
default = "@config-DEFAULT-SEQ";
binman_configuration: @config-SEQ {
description = "NAME";
fdt = "fdt-SEQ";
firmware = "uboot";
loadables = "atf";
};
};
};
};
imx-boot {
filename = "flash.bin";
pad-byte = <0x00>;
spl {
filename = "spl.bin";
offset = <0x0>;
type = "blob-ext";
};
binman_uboot: uboot {
filename = "u-boot.itb";
offset = <0x58000>;
type = "blob-ext";
};
};
};

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@ -0,0 +1,240 @@
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright 2019-2020 Variscite Ltd.
* Copyright (C) 2020 Krzysztof Kozlowski <krzk@kernel.org>
*/
/dts-v1/;
#include "imx8mn-var-som.dtsi"
/ {
model = "Variscite VAR-SOM-MX8MN Symphony evaluation board";
compatible = "variscite,var-som-mx8mn-symphony", "variscite,var-som-mx8mn", "fsl,imx8mn";
reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_reg_usdhc2_vmmc>;
regulator-name = "VSD_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio4 22 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
gpio-keys {
compatible = "gpio-keys";
back {
label = "Back";
gpios = <&pca9534 1 GPIO_ACTIVE_LOW>;
linux,code = <KEY_BACK>;
};
home {
label = "Home";
gpios = <&pca9534 2 GPIO_ACTIVE_LOW>;
linux,code = <KEY_HOME>;
};
menu {
label = "Menu";
gpios = <&pca9534 3 GPIO_ACTIVE_LOW>;
linux,code = <KEY_MENU>;
};
};
leds {
compatible = "gpio-leds";
led {
label = "Heartbeat";
gpios = <&pca9534 0 GPIO_ACTIVE_LOW>;
linux,default-trigger = "heartbeat";
};
};
};
&ethphy {
reset-gpios = <&pca9534 5 GPIO_ACTIVE_HIGH>;
};
&i2c2 {
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c2>;
status = "okay";
pca9534: gpio@20 {
compatible = "nxp,pca9534";
reg = <0x20>;
gpio-controller;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pca9534>;
interrupt-parent = <&gpio1>;
interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
#gpio-cells = <2>;
wakeup-source;
/* USB 3.0 OTG (usbotg1) / SATA port switch, set to USB 3.0 */
usb3-sata-sel-hog {
gpio-hog;
gpios = <4 GPIO_ACTIVE_HIGH>;
output-low;
line-name = "usb3_sata_sel";
};
som-vselect-hog {
gpio-hog;
gpios = <6 GPIO_ACTIVE_HIGH>;
output-low;
line-name = "som_vselect";
};
enet-sel-hog {
gpio-hog;
gpios = <7 GPIO_ACTIVE_HIGH>;
output-low;
line-name = "enet_sel";
};
};
extcon_usbotg1: typec@3d {
compatible = "nxp,ptn5150";
reg = <0x3d>;
interrupt-parent = <&gpio1>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ptn5150>;
status = "okay";
};
};
&i2c3 {
/* Capacitive touch controller */
ft5x06_ts: touchscreen@38 {
compatible = "edt,edt-ft5406";
reg = <0x38>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_captouch>;
interrupt-parent = <&gpio5>;
interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
touchscreen-size-x = <800>;
touchscreen-size-y = <480>;
touchscreen-inverted-x;
touchscreen-inverted-y;
};
rtc@68 {
compatible = "dallas,ds1337";
reg = <0x68>;
};
};
/* Header */
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
status = "okay";
};
/* Header */
&uart3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart3>;
status = "okay";
};
&usbotg1 {
disable-over-current;
extcon = <&extcon_usbotg1>, <&extcon_usbotg1>;
};
&pinctrl_fec1 {
fsl,pins = <
MX8MN_IOMUXC_ENET_MDC_ENET1_MDC 0x3
MX8MN_IOMUXC_ENET_MDIO_ENET1_MDIO 0x3
MX8MN_IOMUXC_ENET_TD3_ENET1_RGMII_TD3 0x1f
MX8MN_IOMUXC_ENET_TD2_ENET1_RGMII_TD2 0x1f
MX8MN_IOMUXC_ENET_TD1_ENET1_RGMII_TD1 0x1f
MX8MN_IOMUXC_ENET_TD0_ENET1_RGMII_TD0 0x1f
MX8MN_IOMUXC_ENET_RD3_ENET1_RGMII_RD3 0x91
MX8MN_IOMUXC_ENET_RD2_ENET1_RGMII_RD2 0x91
MX8MN_IOMUXC_ENET_RD1_ENET1_RGMII_RD1 0x91
MX8MN_IOMUXC_ENET_RD0_ENET1_RGMII_RD0 0x91
MX8MN_IOMUXC_ENET_TXC_ENET1_RGMII_TXC 0x1f
MX8MN_IOMUXC_ENET_RXC_ENET1_RGMII_RXC 0x91
MX8MN_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL 0x91
MX8MN_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL 0x1f
/* Remove the MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9 as not used */
>;
};
&pinctrl_fec1_sleep {
fsl,pins = <
MX8MN_IOMUXC_ENET_MDC_GPIO1_IO16 0x120
MX8MN_IOMUXC_ENET_MDIO_GPIO1_IO17 0x120
MX8MN_IOMUXC_ENET_TD3_GPIO1_IO18 0x120
MX8MN_IOMUXC_ENET_TD2_GPIO1_IO19 0x120
MX8MN_IOMUXC_ENET_TD1_GPIO1_IO20 0x120
MX8MN_IOMUXC_ENET_TD0_GPIO1_IO21 0x120
MX8MN_IOMUXC_ENET_RD3_GPIO1_IO29 0x120
MX8MN_IOMUXC_ENET_RD2_GPIO1_IO28 0x120
MX8MN_IOMUXC_ENET_RD1_GPIO1_IO27 0x120
MX8MN_IOMUXC_ENET_RD0_GPIO1_IO26 0x120
MX8MN_IOMUXC_ENET_TXC_GPIO1_IO23 0x120
MX8MN_IOMUXC_ENET_RXC_GPIO1_IO25 0x120
MX8MN_IOMUXC_ENET_RX_CTL_GPIO1_IO24 0x120
MX8MN_IOMUXC_ENET_TX_CTL_GPIO1_IO22 0x120
/* Remove the MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9 as not used */
>;
};
&iomuxc {
pinctrl_captouch: captouchgrp {
fsl,pins = <
MX8MN_IOMUXC_SPDIF_RX_GPIO5_IO4 0x16
>;
};
pinctrl_i2c2: i2c2grp {
fsl,pins = <
MX8MN_IOMUXC_I2C2_SCL_I2C2_SCL 0x400001c3
MX8MN_IOMUXC_I2C2_SDA_I2C2_SDA 0x400001c3
>;
};
pinctrl_pca9534: pca9534grp {
fsl,pins = <
MX8MN_IOMUXC_GPIO1_IO07_GPIO1_IO7 0x16
>;
};
pinctrl_ptn5150: ptn5150grp {
fsl,pins = <
MX8MN_IOMUXC_GPIO1_IO11_GPIO1_IO11 0x16
>;
};
pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
fsl,pins = <
MX8MN_IOMUXC_SAI2_RXC_GPIO4_IO22 0x41
>;
};
pinctrl_uart1: uart1grp {
fsl,pins = <
MX8MN_IOMUXC_UART1_RXD_UART1_DCE_RX 0x140
MX8MN_IOMUXC_UART1_TXD_UART1_DCE_TX 0x140
>;
};
pinctrl_uart3: uart3grp {
fsl,pins = <
MX8MN_IOMUXC_UART3_RXD_UART3_DCE_RX 0x140
MX8MN_IOMUXC_UART3_TXD_UART3_DCE_TX 0x140
>;
};
};

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@ -0,0 +1,547 @@
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright 2019 NXP
* Copyright 2019-2020 Variscite Ltd.
* Copyright (C) 2020 Krzysztof Kozlowski <krzk@kernel.org>
*/
#include "imx8mn.dtsi"
/ {
model = "Variscite VAR-SOM-MX8MN module";
compatible = "variscite,var-som-mx8mn", "fsl,imx8mn";
chosen {
stdout-path = &uart4;
};
memory@40000000 {
device_type = "memory";
reg = <0x0 0x40000000 0 0x40000000>;
};
reg_eth_phy: regulator-eth-phy {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_reg_eth_phy>;
regulator-name = "eth_phy_pwr";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio2 9 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
};
&A53_0 {
cpu-supply = <&buck2_reg>;
};
&A53_1 {
cpu-supply = <&buck2_reg>;
};
&A53_2 {
cpu-supply = <&buck2_reg>;
};
&A53_3 {
cpu-supply = <&buck2_reg>;
};
&ecspi1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi1>;
cs-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>,
<&gpio1 0 GPIO_ACTIVE_LOW>;
/delete-property/ dmas;
/delete-property/ dma-names;
status = "okay";
/* Resistive touch controller */
touchscreen@0 {
reg = <0>;
compatible = "ti,ads7846";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_restouch>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
spi-max-frequency = <1500000>;
pendown-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
ti,x-min = /bits/ 16 <125>;
touchscreen-size-x = /bits/ 16 <4008>;
ti,y-min = /bits/ 16 <282>;
touchscreen-size-y = /bits/ 16 <3864>;
ti,x-plate-ohms = /bits/ 16 <180>;
touchscreen-max-pressure = /bits/ 16 <255>;
touchscreen-average-samples = /bits/ 16 <10>;
ti,debounce-tol = /bits/ 16 <3>;
ti,debounce-rep = /bits/ 16 <1>;
ti,settle-delay-usec = /bits/ 16 <150>;
ti,keep-vref-on;
wakeup-source;
};
};
&fec1 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&pinctrl_fec1>;
pinctrl-1 = <&pinctrl_fec1_sleep>;
phy-mode = "rgmii";
phy-handle = <&ethphy>;
phy-supply = <&reg_eth_phy>;
phy-reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
phy-reset-duration = <10>;
fsl,magic-packet;
status = "okay";
mdio {
#address-cells = <1>;
#size-cells = <0>;
ethphy: ethernet-phy@4 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <4>;
};
};
};
&i2c1 {
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
status = "okay";
pmic@4b {
compatible = "rohm,bd71847";
reg = <0x4b>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio2>;
interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
rohm,reset-snvs-powered;
regulators {
buck1_reg: BUCK1 {
regulator-name = "buck1";
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1250>;
};
buck2_reg: BUCK2 {
regulator-name = "buck2";
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1250>;
rohm,dvs-run-voltage = <1000000>;
rohm,dvs-idle-voltage = <900000>;
};
buck3_reg: BUCK3 {
regulator-name = "buck3";
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1350000>;
regulator-boot-on;
regulator-always-on;
};
buck4_reg: BUCK4 {
regulator-name = "buck4";
regulator-min-microvolt = <2600000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
buck5_reg: BUCK5 {
regulator-name = "buck5";
regulator-min-microvolt = <1605000>;
regulator-max-microvolt = <1995000>;
regulator-boot-on;
regulator-always-on;
};
buck6_reg: BUCK6 {
regulator-name = "buck6";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1400000>;
regulator-boot-on;
regulator-always-on;
};
ldo1_reg: LDO1 {
regulator-name = "ldo1";
regulator-min-microvolt = <1600000>;
regulator-max-microvolt = <1900000>;
regulator-boot-on;
regulator-always-on;
};
ldo2_reg: LDO2 {
regulator-name = "ldo2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <900000>;
regulator-boot-on;
regulator-always-on;
};
ldo3_reg: LDO3 {
regulator-name = "ldo3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo4_reg: LDO4 {
regulator-name = "ldo4";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo5_reg: LDO5 {
regulator-compatible = "ldo5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo6_reg: LDO6 {
regulator-name = "ldo6";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};
&i2c3 {
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c3>;
status = "okay";
/* TODO: configure audio, as of now just put a placeholder */
wm8904: codec@1a {
compatible = "wlf,wm8904";
reg = <0x1a>;
status = "disabled";
};
};
&snvs_pwrkey {
status = "okay";
};
/* Bluetooth */
&uart2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart2>;
assigned-clocks = <&clk IMX8MN_CLK_UART2>;
assigned-clock-parents = <&clk IMX8MN_SYS_PLL1_80M>;
uart-has-rtscts;
status = "okay";
};
/* Console */
&uart4 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart4>;
status = "okay";
};
&usbotg1 {
dr_mode = "peripheral";
status = "okay";
};
/* WIFI */
&usdhc1 {
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc1>;
pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
bus-width = <4>;
non-removable;
keep-power-in-suspend;
status = "okay";
brcmf: bcrmf@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
};
};
/* SD */
&usdhc2 {
assigned-clocks = <&clk IMX8MN_CLK_USDHC2>;
assigned-clock-rates = <200000000>;
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
cd-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
bus-width = <4>;
vmmc-supply = <&reg_usdhc2_vmmc>;
status = "okay";
};
/* eMMC */
&usdhc3 {
assigned-clocks = <&clk IMX8MN_CLK_USDHC3_ROOT>;
assigned-clock-rates = <400000000>;
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc3>;
pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
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 = <
MX8MN_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK 0x13
MX8MN_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI 0x13
MX8MN_IOMUXC_ECSPI1_MISO_ECSPI1_MISO 0x13
MX8MN_IOMUXC_GPIO1_IO14_GPIO1_IO14 0x13
MX8MN_IOMUXC_GPIO1_IO00_GPIO1_IO0 0x13
>;
};
pinctrl_fec1: fec1grp {
fsl,pins = <
MX8MN_IOMUXC_ENET_MDC_ENET1_MDC 0x3
MX8MN_IOMUXC_ENET_MDIO_ENET1_MDIO 0x3
MX8MN_IOMUXC_ENET_TD3_ENET1_RGMII_TD3 0x1f
MX8MN_IOMUXC_ENET_TD2_ENET1_RGMII_TD2 0x1f
MX8MN_IOMUXC_ENET_TD1_ENET1_RGMII_TD1 0x1f
MX8MN_IOMUXC_ENET_TD0_ENET1_RGMII_TD0 0x1f
MX8MN_IOMUXC_ENET_RD3_ENET1_RGMII_RD3 0x91
MX8MN_IOMUXC_ENET_RD2_ENET1_RGMII_RD2 0x91
MX8MN_IOMUXC_ENET_RD1_ENET1_RGMII_RD1 0x91
MX8MN_IOMUXC_ENET_RD0_ENET1_RGMII_RD0 0x91
MX8MN_IOMUXC_ENET_TXC_ENET1_RGMII_TXC 0x1f
MX8MN_IOMUXC_ENET_RXC_ENET1_RGMII_RXC 0x91
MX8MN_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL 0x91
MX8MN_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL 0x1f
MX8MN_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x19
>;
};
pinctrl_fec1_sleep: fec1sleepgrp {
fsl,pins = <
MX8MN_IOMUXC_ENET_MDC_GPIO1_IO16 0x120
MX8MN_IOMUXC_ENET_MDIO_GPIO1_IO17 0x120
MX8MN_IOMUXC_ENET_TD3_GPIO1_IO18 0x120
MX8MN_IOMUXC_ENET_TD2_GPIO1_IO19 0x120
MX8MN_IOMUXC_ENET_TD1_GPIO1_IO20 0x120
MX8MN_IOMUXC_ENET_TD0_GPIO1_IO21 0x120
MX8MN_IOMUXC_ENET_RD3_GPIO1_IO29 0x120
MX8MN_IOMUXC_ENET_RD2_GPIO1_IO28 0x120
MX8MN_IOMUXC_ENET_RD1_GPIO1_IO27 0x120
MX8MN_IOMUXC_ENET_RD0_GPIO1_IO26 0x120
MX8MN_IOMUXC_ENET_TXC_GPIO1_IO23 0x120
MX8MN_IOMUXC_ENET_RXC_GPIO1_IO25 0x120
MX8MN_IOMUXC_ENET_RX_CTL_GPIO1_IO24 0x120
MX8MN_IOMUXC_ENET_TX_CTL_GPIO1_IO22 0x120
MX8MN_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x120
>;
};
pinctrl_i2c1: i2c1grp {
fsl,pins = <
MX8MN_IOMUXC_I2C1_SCL_I2C1_SCL 0x400001c3
MX8MN_IOMUXC_I2C1_SDA_I2C1_SDA 0x400001c3
>;
};
pinctrl_i2c3: i2c3grp {
fsl,pins = <
MX8MN_IOMUXC_I2C3_SCL_I2C3_SCL 0x400001c3
MX8MN_IOMUXC_I2C3_SDA_I2C3_SDA 0x400001c3
>;
};
pinctrl_pmic: pmicirqgrp {
fsl,pins = <
MX8MN_IOMUXC_SD1_DATA6_GPIO2_IO8 0x141
>;
};
pinctrl_reg_eth_phy: regethphygrp {
fsl,pins = <
MX8MN_IOMUXC_SD1_DATA7_GPIO2_IO9 0x41
>;
};
pinctrl_restouch: restouchgrp {
fsl,pins = <
MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x1c0
>;
};
pinctrl_uart2: uart2grp {
fsl,pins = <
MX8MN_IOMUXC_SAI3_TXFS_UART2_DCE_RX 0x140
MX8MN_IOMUXC_SAI3_TXC_UART2_DCE_TX 0x140
MX8MN_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B 0x140
MX8MN_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B 0x140
>;
};
pinctrl_uart4: uart4grp {
fsl,pins = <
MX8MN_IOMUXC_UART4_RXD_UART4_DCE_RX 0x140
MX8MN_IOMUXC_UART4_TXD_UART4_DCE_TX 0x140
>;
};
pinctrl_usdhc1: usdhc1grp {
fsl,pins = <
MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK 0x190
MX8MN_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d0
MX8MN_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d0
MX8MN_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d0
MX8MN_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d0
MX8MN_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d0
>;
};
pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK 0x194
MX8MN_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d4
MX8MN_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d4
MX8MN_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d4
MX8MN_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d4
MX8MN_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d4
>;
};
pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK 0x196
MX8MN_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d6
MX8MN_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d6
MX8MN_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d6
MX8MN_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d6
MX8MN_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d6
>;
};
pinctrl_usdhc2_gpio: usdhc2gpiogrp {
fsl,pins = <
MX8MN_IOMUXC_GPIO1_IO10_GPIO1_IO10 0x41
>;
};
pinctrl_usdhc2: usdhc2grp {
fsl,pins = <
MX8MN_IOMUXC_SD2_CLK_USDHC2_CLK 0x190
MX8MN_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d0
MX8MN_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d0
MX8MN_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d0
MX8MN_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d0
MX8MN_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d0
MX8MN_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
>;
};
pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_SD2_CLK_USDHC2_CLK 0x194
MX8MN_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d4
MX8MN_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d4
MX8MN_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d4
MX8MN_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d4
MX8MN_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d4
MX8MN_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
>;
};
pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_SD2_CLK_USDHC2_CLK 0x196
MX8MN_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d6
MX8MN_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d6
MX8MN_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d6
MX8MN_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d6
MX8MN_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d6
MX8MN_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
>;
};
pinctrl_usdhc3: usdhc3grp {
fsl,pins = <
MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK 0x190
MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD 0x1d0
MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0 0x1d0
MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1 0x1d0
MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2 0x1d0
MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3 0x1d0
MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4 0x1d0
MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5 0x1d0
MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6 0x1d0
MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7 0x1d0
MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE 0x190
>;
};
pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK 0x194
MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD 0x1d4
MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0 0x1d4
MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1 0x1d4
MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2 0x1d4
MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3 0x1d4
MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4 0x1d4
MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5 0x1d4
MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6 0x1d4
MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7 0x1d4
MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE 0x194
>;
};
pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
fsl,pins = <
MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK 0x196
MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD 0x1d6
MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0 0x1d6
MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1 0x1d6
MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2 0x1d6
MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3 0x1d6
MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4 0x1d6
MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5 0x1d6
MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6 0x1d6
MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7 0x1d6
MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE 0x196
>;
};
pinctrl_wdog: wdoggrp {
fsl,pins = <
MX8MN_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x166
>;
};
};

View File

@ -112,6 +112,13 @@ config TARGET_PICO_IMX8MQ
select IMX8MQ
select IMX8M_LPDDR4
config TARGET_IMX8MN_VAR_SOM
bool "imx8mn_var_som"
select BINMAN
select IMX8MN
select SUPPORT_SPL
select IMX8M_DDR4
config TARGET_VERDIN_IMX8MM
bool "Support Toradex Verdin iMX8M Mini module"
select BINMAN
@ -179,6 +186,7 @@ source "board/phytec/phycore_imx8mm/Kconfig"
source "board/phytec/phycore_imx8mp/Kconfig"
source "board/ronetix/imx8mq-cm/Kconfig"
source "board/technexion/pico-imx8mq/Kconfig"
source "board/variscite/imx8mn_var_som/Kconfig"
source "board/toradex/verdin-imx8mm/Kconfig"
endif

View File

@ -0,0 +1,17 @@
if TARGET_IMX8MN_VAR_SOM
config SYS_BOARD
default "imx8mn_var_som"
config SYS_VENDOR
default "variscite"
config SYS_CONFIG_NAME
default "imx8mn_var_som"
config IMX_CONFIG
default "board/variscite/imx8mn_var_som/imximage-8mn-ddr4.cfg"
source "board/freescale/common/Kconfig"
endif

View File

@ -0,0 +1,7 @@
ARM i.MX8MN VARISCITE VAR-SOM-MX8MN MODULE
M: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
S: Maintained
F: arch/arm/dts/imx8mn-var-som*
F: board/variscite/imx8mn_var_som/
F: configs/imx8mn_var_som_defconfig
F: include/configs/imx8mn_var_som.h

View File

@ -0,0 +1,12 @@
#
# Copyright 2021 Collabora Ltd.
#
# SPDX-License-Identifier: GPL-2.0+
#
obj-y += imx8mn_var_som.o
ifdef CONFIG_SPL_BUILD
obj-y += spl.o
obj-y += ddr4_timing.o
endif

View File

@ -0,0 +1,528 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2019 NXP
*
* Generated code from MX8M_DDR_tool
* Align with uboot version:
* imx_v2018.03_4.14.78_1.0.0_ga ~ imx_v2018.04_4.19.35_1.0.0_ga
*/
#include <linux/kernel.h>
#include <asm/arch/ddr.h>
static struct dram_cfg_param ddr_ddrc_cfg[] = {
/** Initialize DDRC registers **/
{ 0x3d400000, 0x81040010 },
{ 0x3d400030, 0x20 },
{ 0x3d400034, 0x221306 },
{ 0x3d400050, 0x210070 },
{ 0x3d400054, 0x10008 },
{ 0x3d400060, 0x0 },
{ 0x3d400064, 0x9200d2 },
{ 0x3d4000c0, 0x0 },
{ 0x3d4000c4, 0x1000 },
{ 0x3d4000d0, 0xc0030126 },
{ 0x3d4000d4, 0x770000 },
{ 0x3d4000dc, 0x8340105 },
{ 0x3d4000e0, 0x180200 },
{ 0x3d4000e4, 0x110000 },
{ 0x3d4000e8, 0x2000600 },
{ 0x3d4000ec, 0x810 },
{ 0x3d4000f0, 0x20 },
{ 0x3d4000f4, 0xec7 },
{ 0x3d400100, 0x11122914 },
{ 0x3d400104, 0x4051c },
{ 0x3d400108, 0x608050d },
{ 0x3d40010c, 0x400c },
{ 0x3d400110, 0x8030409 },
{ 0x3d400114, 0x6060403 },
{ 0x3d40011c, 0x606 },
{ 0x3d400120, 0x5050d08 },
{ 0x3d400124, 0x2040a },
{ 0x3d40012c, 0x1409010e },
{ 0x3d400130, 0x8 },
{ 0x3d40013c, 0x0 },
{ 0x3d400180, 0x1000040 },
{ 0x3d400184, 0x493e },
{ 0x3d400190, 0x38b8207 },
{ 0x3d400194, 0x2020303 },
{ 0x3d400198, 0x7f04011 },
{ 0x3d40019c, 0xb0 },
{ 0x3d4001a0, 0xe0400018 },
{ 0x3d4001a4, 0x48005a },
{ 0x3d4001a8, 0x80000000 },
{ 0x3d4001b0, 0x1 },
{ 0x3d4001b4, 0xb07 },
{ 0x3d4001b8, 0x4 },
{ 0x3d4001c0, 0x1 },
{ 0x3d4001c4, 0x0 },
{ 0x3d400200, 0x3f1f },
{ 0x3d400204, 0x3f0909 },
{ 0x3d400208, 0x700 },
{ 0x3d40020c, 0x0 },
{ 0x3d400210, 0x1f1f },
{ 0x3d400214, 0x7070707 },
{ 0x3d400218, 0x7070707 },
{ 0x3d40021c, 0xf0f },
{ 0x3d400220, 0x3f01 },
{ 0x3d400240, 0x6000610 },
{ 0x3d400244, 0x1323 },
{ 0x3d400400, 0x100 },
{ 0x3d400250, 0x317d1a07 },
{ 0x3d400254, 0xf },
{ 0x3d40025c, 0x2a001b76 },
{ 0x3d400264, 0x7300b473 },
{ 0x3d40026c, 0x30000e06 },
{ 0x3d400300, 0x14 },
{ 0x3d40036c, 0x10 },
{ 0x3d400404, 0x13193 },
{ 0x3d400408, 0x6096 },
{ 0x3d400490, 0x1 },
{ 0x3d400494, 0x2000c00 },
{ 0x3d400498, 0x3c00db },
{ 0x3d40049c, 0x100009 },
{ 0x3d4004a0, 0x2 },
{ 0x3d402050, 0x210070 },
{ 0x3d402064, 0x40005e },
{ 0x3d4020dc, 0x40105 },
{ 0x3d4020e0, 0x0 },
{ 0x3d4020e8, 0x2000600 },
{ 0x3d4020ec, 0x10 },
{ 0x3d402100, 0xb081209 },
{ 0x3d402104, 0x2020d },
{ 0x3d402108, 0x5050309 },
{ 0x3d40210c, 0x400c },
{ 0x3d402110, 0x5030206 },
{ 0x3d402114, 0x3030202 },
{ 0x3d40211c, 0x303 },
{ 0x3d402120, 0x3030d04 },
{ 0x3d402124, 0x20208 },
{ 0x3d40212c, 0x1005010e },
{ 0x3d402130, 0x8 },
{ 0x3d40213c, 0x0 },
{ 0x3d402180, 0x1000040 },
{ 0x3d402190, 0x3858204 },
{ 0x3d402194, 0x2020303 },
{ 0x3d4021b4, 0x504 },
{ 0x3d4021b8, 0x4 },
{ 0x3d402240, 0x6000604 },
{ 0x3d4020f4, 0xec7 },
};
/* PHY Initialize Configuration */
static struct dram_cfg_param ddr_ddrphy_cfg[] = {
{ 0x1005f, 0x2fd },
{ 0x1015f, 0x2fd },
{ 0x1105f, 0x2fd },
{ 0x1115f, 0x2fd },
{ 0x11005f, 0x2fd },
{ 0x11015f, 0x2fd },
{ 0x11105f, 0x2fd },
{ 0x11115f, 0x2fd },
{ 0x55, 0x355 },
{ 0x1055, 0x355 },
{ 0x2055, 0x355 },
{ 0x3055, 0x355 },
{ 0x4055, 0x55 },
{ 0x5055, 0x55 },
{ 0x6055, 0x355 },
{ 0x7055, 0x355 },
{ 0x8055, 0x355 },
{ 0x9055, 0x355 },
{ 0x200c5, 0xa },
{ 0x1200c5, 0x6 },
{ 0x2002e, 0x2 },
{ 0x12002e, 0x1 },
{ 0x20024, 0x8 },
{ 0x2003a, 0x2 },
{ 0x120024, 0x8 },
{ 0x2003a, 0x2 },
{ 0x20056, 0x6 },
{ 0x120056, 0xa },
{ 0x1004d, 0x1a },
{ 0x1014d, 0x1a },
{ 0x1104d, 0x1a },
{ 0x1114d, 0x1a },
{ 0x11004d, 0x1a },
{ 0x11014d, 0x1a },
{ 0x11104d, 0x1a },
{ 0x11114d, 0x1a },
{ 0x10049, 0xe38 },
{ 0x10149, 0xe38 },
{ 0x11049, 0xe38 },
{ 0x11149, 0xe38 },
{ 0x110049, 0xe38 },
{ 0x110149, 0xe38 },
{ 0x111049, 0xe38 },
{ 0x111149, 0xe38 },
{ 0x43, 0x63 },
{ 0x1043, 0x63 },
{ 0x2043, 0x63 },
{ 0x3043, 0x63 },
{ 0x4043, 0x63 },
{ 0x5043, 0x63 },
{ 0x6043, 0x63 },
{ 0x7043, 0x63 },
{ 0x8043, 0x63 },
{ 0x9043, 0x63 },
{ 0x20018, 0x1 },
{ 0x20075, 0x2 },
{ 0x20050, 0x0 },
{ 0x20008, 0x258 },
{ 0x120008, 0x10a },
{ 0x20088, 0x9 },
{ 0x200b2, 0x268 },
{ 0x10043, 0x5b1 },
{ 0x10143, 0x5b1 },
{ 0x11043, 0x5b1 },
{ 0x11143, 0x5b1 },
{ 0x1200b2, 0x268 },
{ 0x110043, 0x5b1 },
{ 0x110143, 0x5b1 },
{ 0x111043, 0x5b1 },
{ 0x111143, 0x5b1 },
{ 0x200fa, 0x1 },
{ 0x1200fa, 0x1 },
{ 0x20019, 0x5 },
{ 0x120019, 0x5 },
{ 0x200f0, 0x5555 },
{ 0x200f1, 0x5555 },
{ 0x200f2, 0x5555 },
{ 0x200f3, 0x5555 },
{ 0x200f4, 0x5555 },
{ 0x200f5, 0x5555 },
{ 0x200f6, 0x5555 },
{ 0x200f7, 0xf000 },
{ 0x20025, 0x0 },
{ 0x2002d, 0x0 },
{ 0x12002d, 0x0 },
{ 0x2005b, 0x7529 },
{ 0x2005c, 0x0 },
{ 0x200c7, 0x21 },
{ 0x200ca, 0x24 },
{ 0x200cc, 0x1f7 },
{ 0x1200c7, 0x21 },
{ 0x1200ca, 0x24 },
{ 0x1200cc, 0x1f7 },
{ 0x2007d, 0x212 },
{ 0x12007d, 0x212 },
{ 0x2007c, 0x61 },
{ 0x12007c, 0x61 },
{ 0x1004a, 0x500 },
{ 0x1104a, 0x500 },
{ 0x2002c, 0x0 },
};
/* P0 message block parameter for training firmware */
static struct dram_cfg_param ddr_fsp0_cfg[] = {
{ 0xd0000, 0x0 },
{ 0x54003, 0x960 },
{ 0x54004, 0x2 },
{ 0x54005, 0x2830 },
{ 0x54006, 0x25e },
{ 0x54007, 0x1000 },
{ 0x54008, 0x101 },
{ 0x5400b, 0x31f },
{ 0x5400c, 0xc8 },
{ 0x5400d, 0x100 },
{ 0x54012, 0x1 },
{ 0x5402f, 0x834 },
{ 0x54030, 0x105 },
{ 0x54031, 0x18 },
{ 0x54032, 0x200 },
{ 0x54033, 0x200 },
{ 0x54034, 0x600 },
{ 0x54035, 0x810 },
{ 0x54036, 0x101 },
{ 0x5403f, 0x1221 },
{ 0x541fc, 0x100 },
{ 0xd0000, 0x1 },
};
/* P1 message block parameter for training firmware */
static struct dram_cfg_param ddr_fsp1_cfg[] = {
{ 0xd0000, 0x0 },
{ 0x54002, 0x1 },
{ 0x54003, 0x42a },
{ 0x54004, 0x2 },
{ 0x54005, 0x2830 },
{ 0x54006, 0x25e },
{ 0x54007, 0x1000 },
{ 0x54008, 0x101 },
{ 0x5400b, 0x21f },
{ 0x5400c, 0xc8 },
{ 0x5400d, 0x100 },
{ 0x54012, 0x1 },
{ 0x5402f, 0x4 },
{ 0x54030, 0x105 },
{ 0x54033, 0x200 },
{ 0x54034, 0x600 },
{ 0x54035, 0x10 },
{ 0x54036, 0x101 },
{ 0x5403f, 0x1221 },
{ 0x541fc, 0x100 },
{ 0xd0000, 0x1 },
};
/* P0 2D message block parameter for training firmware */
static struct dram_cfg_param ddr_fsp0_2d_cfg[] = {
{ 0xd0000, 0x0 },
{ 0x54003, 0x960 },
{ 0x54004, 0x2 },
{ 0x54005, 0x2830 },
{ 0x54006, 0x25e },
{ 0x54007, 0x1000 },
{ 0x54008, 0x101 },
{ 0x5400b, 0x61 },
{ 0x5400c, 0xc8 },
{ 0x5400d, 0x100 },
{ 0x5400e, 0x1f7f },
{ 0x54012, 0x1 },
{ 0x5402f, 0x834 },
{ 0x54030, 0x105 },
{ 0x54031, 0x18 },
{ 0x54032, 0x200 },
{ 0x54033, 0x200 },
{ 0x54034, 0x600 },
{ 0x54035, 0x810 },
{ 0x54036, 0x101 },
{ 0x5403f, 0x1221 },
{ 0x541fc, 0x100 },
{ 0xd0000, 0x1 },
};
/* DRAM PHY init engine image */
static struct dram_cfg_param ddr_phy_pie[] = {
{ 0xd0000, 0x0 },
{ 0x90000, 0x10 },
{ 0x90001, 0x400 },
{ 0x90002, 0x10e },
{ 0x90003, 0x0 },
{ 0x90004, 0x0 },
{ 0x90005, 0x8 },
{ 0x90029, 0xb },
{ 0x9002a, 0x480 },
{ 0x9002b, 0x109 },
{ 0x9002c, 0x8 },
{ 0x9002d, 0x448 },
{ 0x9002e, 0x139 },
{ 0x9002f, 0x8 },
{ 0x90030, 0x478 },
{ 0x90031, 0x109 },
{ 0x90032, 0x2 },
{ 0x90033, 0x10 },
{ 0x90034, 0x139 },
{ 0x90035, 0xb },
{ 0x90036, 0x7c0 },
{ 0x90037, 0x139 },
{ 0x90038, 0x44 },
{ 0x90039, 0x633 },
{ 0x9003a, 0x159 },
{ 0x9003b, 0x14f },
{ 0x9003c, 0x630 },
{ 0x9003d, 0x159 },
{ 0x9003e, 0x47 },
{ 0x9003f, 0x633 },
{ 0x90040, 0x149 },
{ 0x90041, 0x4f },
{ 0x90042, 0x633 },
{ 0x90043, 0x179 },
{ 0x90044, 0x8 },
{ 0x90045, 0xe0 },
{ 0x90046, 0x109 },
{ 0x90047, 0x0 },
{ 0x90048, 0x7c8 },
{ 0x90049, 0x109 },
{ 0x9004a, 0x0 },
{ 0x9004b, 0x1 },
{ 0x9004c, 0x8 },
{ 0x9004d, 0x0 },
{ 0x9004e, 0x45a },
{ 0x9004f, 0x9 },
{ 0x90050, 0x0 },
{ 0x90051, 0x448 },
{ 0x90052, 0x109 },
{ 0x90053, 0x40 },
{ 0x90054, 0x633 },
{ 0x90055, 0x179 },
{ 0x90056, 0x1 },
{ 0x90057, 0x618 },
{ 0x90058, 0x109 },
{ 0x90059, 0x40c0 },
{ 0x9005a, 0x633 },
{ 0x9005b, 0x149 },
{ 0x9005c, 0x8 },
{ 0x9005d, 0x4 },
{ 0x9005e, 0x48 },
{ 0x9005f, 0x4040 },
{ 0x90060, 0x633 },
{ 0x90061, 0x149 },
{ 0x90062, 0x0 },
{ 0x90063, 0x4 },
{ 0x90064, 0x48 },
{ 0x90065, 0x40 },
{ 0x90066, 0x633 },
{ 0x90067, 0x149 },
{ 0x90068, 0x10 },
{ 0x90069, 0x4 },
{ 0x9006a, 0x18 },
{ 0x9006b, 0x0 },
{ 0x9006c, 0x4 },
{ 0x9006d, 0x78 },
{ 0x9006e, 0x549 },
{ 0x9006f, 0x633 },
{ 0x90070, 0x159 },
{ 0x90071, 0xd49 },
{ 0x90072, 0x633 },
{ 0x90073, 0x159 },
{ 0x90074, 0x94a },
{ 0x90075, 0x633 },
{ 0x90076, 0x159 },
{ 0x90077, 0x441 },
{ 0x90078, 0x633 },
{ 0x90079, 0x149 },
{ 0x9007a, 0x42 },
{ 0x9007b, 0x633 },
{ 0x9007c, 0x149 },
{ 0x9007d, 0x1 },
{ 0x9007e, 0x633 },
{ 0x9007f, 0x149 },
{ 0x90080, 0x0 },
{ 0x90081, 0xe0 },
{ 0x90082, 0x109 },
{ 0x90083, 0xa },
{ 0x90084, 0x10 },
{ 0x90085, 0x109 },
{ 0x90086, 0x9 },
{ 0x90087, 0x3c0 },
{ 0x90088, 0x149 },
{ 0x90089, 0x9 },
{ 0x9008a, 0x3c0 },
{ 0x9008b, 0x159 },
{ 0x9008c, 0x18 },
{ 0x9008d, 0x10 },
{ 0x9008e, 0x109 },
{ 0x9008f, 0x0 },
{ 0x90090, 0x3c0 },
{ 0x90091, 0x109 },
{ 0x90092, 0x18 },
{ 0x90093, 0x4 },
{ 0x90094, 0x48 },
{ 0x90095, 0x18 },
{ 0x90096, 0x4 },
{ 0x90097, 0x58 },
{ 0x90098, 0xb },
{ 0x90099, 0x10 },
{ 0x9009a, 0x109 },
{ 0x9009b, 0x1 },
{ 0x9009c, 0x10 },
{ 0x9009d, 0x109 },
{ 0x9009e, 0x5 },
{ 0x9009f, 0x7c0 },
{ 0x900a0, 0x109 },
{ 0x900a1, 0x0 },
{ 0x900a2, 0x8140 },
{ 0x900a3, 0x10c },
{ 0x900a4, 0x10 },
{ 0x900a5, 0x8138 },
{ 0x900a6, 0x10c },
{ 0x900a7, 0x8 },
{ 0x900a8, 0x7c8 },
{ 0x900a9, 0x101 },
{ 0x900aa, 0x8 },
{ 0x900ab, 0x448 },
{ 0x900ac, 0x109 },
{ 0x900ad, 0xf },
{ 0x900ae, 0x7c0 },
{ 0x900af, 0x109 },
{ 0x900b0, 0x47 },
{ 0x900b1, 0x630 },
{ 0x900b2, 0x109 },
{ 0x900b3, 0x8 },
{ 0x900b4, 0x618 },
{ 0x900b5, 0x109 },
{ 0x900b6, 0x8 },
{ 0x900b7, 0xe0 },
{ 0x900b8, 0x109 },
{ 0x900b9, 0x0 },
{ 0x900ba, 0x7c8 },
{ 0x900bb, 0x109 },
{ 0x900bc, 0x8 },
{ 0x900bd, 0x8140 },
{ 0x900be, 0x10c },
{ 0x900bf, 0x0 },
{ 0x900c0, 0x1 },
{ 0x900c1, 0x8 },
{ 0x900c2, 0x8 },
{ 0x900c3, 0x4 },
{ 0x900c4, 0x8 },
{ 0x900c5, 0x8 },
{ 0x900c6, 0x7c8 },
{ 0x900c7, 0x101 },
{ 0x90006, 0x0 },
{ 0x90007, 0x0 },
{ 0x90008, 0x8 },
{ 0x90009, 0x0 },
{ 0x9000a, 0x0 },
{ 0x9000b, 0x0 },
{ 0xd00e7, 0x400 },
{ 0x90017, 0x0 },
{ 0x90026, 0x2b },
{ 0x2000b, 0x4b },
{ 0x2000c, 0x96 },
{ 0x2000d, 0x5dc },
{ 0x2000e, 0x2c },
{ 0x12000b, 0x21 },
{ 0x12000c, 0x42 },
{ 0x12000d, 0x29a },
{ 0x12000e, 0x21 },
{ 0x9000c, 0x0 },
{ 0x9000d, 0x173 },
{ 0x9000e, 0x60 },
{ 0x9000f, 0x6110 },
{ 0x90010, 0x2152 },
{ 0x90011, 0xdfbd },
{ 0x90012, 0xffff },
{ 0x90013, 0x6152 },
{ 0x20089, 0x1 },
{ 0x20088, 0x19 },
{ 0xc0080, 0x0 },
{ 0xd0000, 0x1 },
};
static struct dram_fsp_msg ddr_dram_fsp_msg[] = {
{
/* P0 2400mts 1D */
.drate = 2400,
.fw_type = FW_1D_IMAGE,
.fsp_cfg = ddr_fsp0_cfg,
.fsp_cfg_num = ARRAY_SIZE(ddr_fsp0_cfg),
},
{
/* P1 1066mts 1D */
.drate = 1066,
.fw_type = FW_1D_IMAGE,
.fsp_cfg = ddr_fsp1_cfg,
.fsp_cfg_num = ARRAY_SIZE(ddr_fsp1_cfg),
},
{
/* P0 2400mts 2D */
.drate = 2400,
.fw_type = FW_2D_IMAGE,
.fsp_cfg = ddr_fsp0_2d_cfg,
.fsp_cfg_num = ARRAY_SIZE(ddr_fsp0_2d_cfg),
},
};
/* ddr timing config params */
struct dram_timing_info dram_timing = {
.ddrc_cfg = ddr_ddrc_cfg,
.ddrc_cfg_num = ARRAY_SIZE(ddr_ddrc_cfg),
.ddrphy_cfg = ddr_ddrphy_cfg,
.ddrphy_cfg_num = ARRAY_SIZE(ddr_ddrphy_cfg),
.fsp_msg = ddr_dram_fsp_msg,
.fsp_msg_num = ARRAY_SIZE(ddr_dram_fsp_msg),
.ddrphy_pie = ddr_phy_pie,
.ddrphy_pie_num = ARRAY_SIZE(ddr_phy_pie),
.fsp_table = { 2400, 1066, },
};

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@ -0,0 +1,30 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2021 Collabora Ltd.
*/
#include <common.h>
#include <env.h>
#include <asm/io.h>
static void setup_fec(void)
{
struct iomuxc_gpr_base_regs *gpr =
(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
/* Use 125M anatop REF_CLK1 for ENET1, not from external */
clrsetbits_le32(&gpr->gpr[1], 0x2000, 0);
}
int board_init(void)
{
if (CONFIG_IS_ENABLED(FEC_MXC))
setup_fec();
return 0;
}
int board_mmc_get_env_dev(int devno)
{
return devno;
}

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@ -0,0 +1,10 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2021 Collabora Ltd.
*/
#define __ASSEMBLY__
ROM_VERSION v2
BOOT_FROM sd
LOADER u-boot-spl-ddr.bin 0x912000

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@ -0,0 +1,93 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2021 Collabora Ltd.
*
*/
#include <hang.h>
#include <init.h>
#include <spl.h>
#include <asm/arch/clock.h>
#include <asm/arch/ddr.h>
#include <asm/arch/imx8mn_pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/gpio.h>
#include <dm/device.h>
#include <dm/uclass.h>
int spl_board_boot_device(enum boot_device boot_dev_spl)
{
return BOOT_DEVICE_BOOTROM;
}
void spl_dram_init(void)
{
ddr_init(&dram_timing);
}
void spl_board_init(void)
{
struct udevice *dev;
int ret;
debug("Normal Boot\n");
ret = uclass_get_device_by_name(UCLASS_CLK,
"clock-controller@30380000",
&dev);
if (ret < 0)
puts("Failed to find clock node. Check device tree\n");
}
#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)
static const iomux_v3_cfg_t uart_pads[] = {
IMX8MN_PAD_UART4_RXD__UART4_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
IMX8MN_PAD_UART4_TXD__UART4_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
};
static const iomux_v3_cfg_t wdog_pads[] = {
IMX8MN_PAD_GPIO1_IO02__WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL),
};
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));
init_uart_clk(3);
return 0;
}
void board_init_f(ulong dummy)
{
int ret;
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
arch_cpu_init();
board_early_init_f();
timer_init();
preloader_console_init();
ret = spl_init();
if (ret) {
debug("spl_init() failed: %d\n", ret);
hang();
}
/* DDR initialization */
spl_dram_init();
board_init_r(NULL, 0);
}

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@ -0,0 +1,98 @@
CONFIG_ARM=y
CONFIG_ARCH_IMX8M=y
CONFIG_SYS_TEXT_BASE=0x40200000
CONFIG_SYS_MALLOC_LEN=0x2000000
CONFIG_SYS_MALLOC_F_LEN=0x10000
CONFIG_SPL_GPIO=y
CONFIG_SPL_LIBCOMMON_SUPPORT=y
CONFIG_SPL_LIBGENERIC_SUPPORT=y
CONFIG_NR_DRAM_BANKS=1
CONFIG_ENV_SIZE=0x2000
CONFIG_ENV_OFFSET=0xFFFFDE00
CONFIG_DM_GPIO=y
CONFIG_DEFAULT_DEVICE_TREE="imx8mn-var-som-symphony"
CONFIG_SPL_TEXT_BASE=0x912000
CONFIG_TARGET_IMX8MN_VAR_SOM=y
CONFIG_SPL_MMC=y
CONFIG_SPL_SERIAL=y
CONFIG_SPL_DRIVERS_MISC=y
CONFIG_SPL_SYS_MALLOC_F_LEN=0x2000
CONFIG_SPL=y
CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000
CONFIG_DISTRO_DEFAULTS=y
CONFIG_SYS_LOAD_ADDR=0x40480000
CONFIG_FIT=y
CONFIG_FIT_EXTERNAL_OFFSET=0x3000
CONFIG_SPL_LOAD_FIT=y
# CONFIG_USE_SPL_FIT_GENERATOR is not set
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_DEFAULT_FDT_FILE="freescale/imx8mn-var-som-symphony.dtb"
CONFIG_ARCH_MISC_INIT=y
CONFIG_SPL_BOARD_INIT=y
CONFIG_SPL_BOOTROM_SUPPORT=y
CONFIG_SPL_SEPARATE_BSS=y
CONFIG_SPL_I2C=y
CONFIG_SPL_POWER=y
CONFIG_SPL_WATCHDOG=y
CONFIG_SYS_PROMPT="> "
CONFIG_CMD_FUSE=y
CONFIG_CMD_MMC=y
CONFIG_CMD_USB=y
CONFIG_CMD_USB_MASS_STORAGE=y
CONFIG_OF_CONTROL=y
CONFIG_SPL_OF_CONTROL=y
CONFIG_ENV_IS_IN_MMC=y
CONFIG_SYS_RELOC_GD_ENV_ADDR=y
CONFIG_SYS_MMC_ENV_DEV=2
CONFIG_SYS_MMC_ENV_PART=1
CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
CONFIG_NET_RANDOM_ETHADDR=y
CONFIG_SPL_DM=y
CONFIG_REGMAP=y
CONFIG_SYSCON=y
CONFIG_SPL_CLK_COMPOSITE_CCF=y
CONFIG_CLK_COMPOSITE_CCF=y
CONFIG_SPL_CLK_IMX8MN=y
CONFIG_CLK_IMX8MN=y
CONFIG_USB_FUNCTION_FASTBOOT=y
CONFIG_FASTBOOT_BUF_ADDR=0x40480000
CONFIG_FASTBOOT_BUF_SIZE=0x20000000
CONFIG_FASTBOOT_FLASH=y
CONFIG_FASTBOOT_UUU_SUPPORT=y
CONFIG_FASTBOOT_FLASH_MMC_DEV=2
CONFIG_MXC_GPIO=y
CONFIG_DM_I2C=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_USDHC=y
CONFIG_PHYLIB=y
CONFIG_PHY_ATHEROS=y
CONFIG_DM_ETH=y
CONFIG_PHY_GIGE=y
CONFIG_FEC_MXC=y
CONFIG_MII=y
CONFIG_PINCTRL=y
CONFIG_SPL_PINCTRL=y
CONFIG_PINCTRL_IMX8M=y
CONFIG_DM_PMIC=y
CONFIG_DM_PMIC_BD71837=y
CONFIG_SPL_DM_PMIC_BD71837=y
CONFIG_DM_REGULATOR=y
CONFIG_DM_REGULATOR_FIXED=y
CONFIG_DM_REGULATOR_GPIO=y
CONFIG_MXC_UART=y
CONFIG_SYSRESET=y
CONFIG_SYSRESET_PSCI=y
CONFIG_SYSRESET_WATCHDOG=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_IMX_WATCHDOG=y
CONFIG_OF_LIBFDT_OVERLAY=y

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@ -37,5 +37,6 @@ Board-specific doc
tbs/index
ti/index
toradex/index
variscite/index
xen/index
xilinx/index

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.. SPDX-License-Identifier: GPL-2.0+
imx8mn_var_som
==============
U-Boot for the Variscite VAR-SOM-MX8MN Symphony evaluation board
Quick Start
-----------
- Build the ARM Trusted firmware binary
- Get firmware-imx package
- Build U-Boot
- Boot
Get and Build the ARM Trusted firmware
--------------------------------------
Note: srctree is U-Boot source directory
Get ATF from: https://github.com/ARM-software/arm-trusted-firmware
tag: v2.5
.. code-block:: bash
$ make PLAT=imx8mn IMX_BOOT_UART_BASE=0x30a60000 bl31
$ cp build/imx8mn/release/bl31.bin $(srctree)
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
$ cp firmware-imx-8.9/firmware/ddr/synopsys/ddr4*.bin $(srctree)
Build U-Boot
------------
.. code-block:: bash
$ export CROSS_COMPILE=aarch64-linux-gnu-
$ make imx8mn_var_som_defconfig
$ make
Burn the flash.bin to MicroSD card offset 32KB:
.. code-block:: bash
$ dd if=flash.bin of=/dev/sd[x] bs=1024 seek=32 conv=notrunc
Boot
----
Set Boot switch to SD boot

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@ -0,0 +1,9 @@
.. SPDX-License-Identifier: GPL-2.0+
Variscite
=========
.. toctree::
:maxdepth: 2
imx8mn_var_som

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2021 Collabora Ltd.
*/
#ifndef __IMX8MN_VAR_SOM_H
#define __IMX8MN_VAR_SOM_H
#include <linux/sizes.h>
#include <linux/stringify.h>
#include <asm/arch/imx-regs.h>
#define CONFIG_SYS_BOOTM_LEN (32 * SZ_1M)
#define CONFIG_SPL_MAX_SIZE (148 * SZ_1K)
#define CONFIG_SYS_MONITOR_LEN SZ_512K
#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300
#define CONFIG_SYS_UBOOT_BASE \
(QSPI0_AMBA_BASE + CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR * 512)
#define CONFIG_SPL_STACK 0x980000
#define CONFIG_SPL_BSS_START_ADDR 0x950000
#define CONFIG_SPL_BSS_MAX_SIZE SZ_8K
#define CONFIG_SYS_SPL_MALLOC_START 0x42200000
#define CONFIG_SYS_SPL_MALLOC_SIZE SZ_512K
#define BOOT_TARGET_DEVICES(func) \
func(MMC, mmc, 1) \
func(MMC, mmc, 2) \
func(MMC, mmc, 0) \
func(PXE, pxe, na) \
func(DHCP, dhcp, na) \
#include <config_distro_bootcmd.h>
/* ENET */
#if defined(CONFIG_FEC_MXC)
#define CONFIG_ETHPRIME "FEC"
#define CONFIG_FEC_XCV_TYPE RGMII
#endif /* CONFIG_FEC_MXC */
#define MEM_LAYOUT_ENV_SETTINGS \
"scriptaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
"kernel_addr_r=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
"ramdisk_addr_r=0x43800000\0" \
"fdt_addr_r=0x43000000\0" \
"fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
"fastboot_partition_alias_all=" \
__stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) ".0:0\0" \
"fastboot_partition_alias_bootloader=" \
__stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) ".1:0\0" \
"emmc_dev=" __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) "\0" \
"emmc_ack=1\0" \
"pxefile_addr_r=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
/* Initial environment variables */
#define CONFIG_EXTRA_ENV_SETTINGS \
MEM_LAYOUT_ENV_SETTINGS \
BOOTENV
/* Link Definitions */
#define CONFIG_SYS_INIT_RAM_ADDR 0x40000000
#define CONFIG_SYS_INIT_RAM_SIZE SZ_512K
#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)
#define CONFIG_SYS_SDRAM_BASE 0x40000000
#define PHYS_SDRAM 0x40000000
#define PHYS_SDRAM_SIZE SZ_1G /* 1GB DDR */
#define CONFIG_MXC_UART_BASE UART4_BASE_ADDR
/* Monitor Command Prompt */
#define CONFIG_SYS_CBSIZE SZ_2K
#define CONFIG_SYS_MAXARGS 64
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
sizeof(CONFIG_SYS_PROMPT) + 16)
/* USDHC */
#define CONFIG_SYS_FSL_ESDHC_ADDR 0
/* I2C */
#define CONFIG_SYS_I2C_SPEED 400000
#endif /* __IMX8MN_VAR_SOM_H */