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>
diff --git a/arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi b/arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi
new file mode 100644
index 0000000..ce47588
--- /dev/null
+++ b/arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi
@@ -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";
+ };
+ };
+};