imx8mm-cl-iot-gate: Split the defconfigs

Currently imx8mm-cl-iot-gate_defconfig fails to produce a working boot
binary due to the lack of fip.bin:

"  BINMAN  all
Image 'main-section' is missing external blobs and is non-functional: blob-ext

Some images are invalid"

To make the build process more consistent with the other i.MX8M targets,
split the defconfig in two:

- imx8mm-cl-iot-gate_defconfig: standard defconfig that only
requires ATF / DDR firmware.

- imx8mm-cl-iot-gate-optee_defconfig: "more advanced" defconfig that
requires ATF / Optee / mbedtls / DDR firmware.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Tested-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
diff --git a/arch/arm/dts/imx8mm-cl-iot-gate-optee-u-boot.dtsi b/arch/arm/dts/imx8mm-cl-iot-gate-optee-u-boot.dtsi
new file mode 100644
index 0000000..1206593
--- /dev/null
+++ b/arch/arm/dts/imx8mm-cl-iot-gate-optee-u-boot.dtsi
@@ -0,0 +1,255 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2019 NXP
+ */
+
+/ {
+	binman: binman {
+		multiple-images;
+	};
+
+	wdt-reboot {
+		compatible = "wdt-reboot";
+		wdt = <&wdog1>;
+		u-boot,dm-spl;
+	};
+
+	firmware {
+		optee {
+			compatible = "linaro,optee-tz";
+			method = "smc";
+		};
+	};
+};
+
+&{/soc@0} {
+	u-boot,dm-pre-reloc;
+	u-boot,dm-spl;
+};
+
+&clk {
+	u-boot,dm-spl;
+	u-boot,dm-pre-reloc;
+	/delete-property/ assigned-clocks;
+	/delete-property/ assigned-clock-parents;
+	/delete-property/ assigned-clock-rates;
+};
+
+&osc_24m {
+	u-boot,dm-spl;
+	u-boot,dm-pre-reloc;
+};
+
+&aips1 {
+	u-boot,dm-spl;
+	u-boot,dm-pre-reloc;
+};
+
+&aips2 {
+	u-boot,dm-spl;
+};
+
+&aips3 {
+	u-boot,dm-spl;
+};
+
+&iomuxc {
+	u-boot,dm-spl;
+};
+
+&pinctrl_uart3 {
+	u-boot,dm-spl;
+};
+
+&pinctrl_usdhc2_gpio {
+	u-boot,dm-spl;
+};
+
+&pinctrl_usdhc2 {
+	u-boot,dm-spl;
+};
+
+&pinctrl_usdhc3 {
+	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;
+};
+
+&usdhc1 {
+	u-boot,dm-spl;
+};
+
+&usdhc2 {
+	u-boot,dm-spl;
+};
+
+&usdhc3 {
+	u-boot,dm-spl;
+};
+
+&i2c1 {
+	u-boot,dm-spl;
+};
+
+&i2c2 {
+	u-boot,dm-spl;
+};
+
+&{/soc@0/bus@30800000/i2c@30a30000/pmic@4b} {
+	u-boot,dm-spl;
+};
+
+&{/soc@0/bus@30800000/i2c@30a30000/pmic@4b/regulators} {
+	u-boot,dm-spl;
+};
+
+&pinctrl_i2c2 {
+	u-boot,dm-spl;
+};
+
+&pinctrl_pmic {
+	u-boot,dm-spl;
+};
+
+&fec1 {
+	phy-reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
+};
+
+&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>;
+		};
+	};
+
+	flash {
+		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 = "bl2.bin";
+					};
+				};
+
+				fip {
+					description = "Trusted Firmware FIP";
+					type = "firmware";
+					arch = "arm64";
+					compression = "none";
+					load = <0x40310000>;
+
+					fip_blob: blob-ext{
+						filename = "fip.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", "fip";
+					fdt = "fdt";
+				};
+			};
+		};
+	};
+};