imx8m: Add imx-mkimage for i.MX8M (mScale)

Support to combine images: HDMI FW, DDR PHY FW, SPL, u-boot.img,
ARM trusted firmware (BL31), and HDMI CSF.

Plugin and DCD support are verified but so far not valiable for mScale.

Signed-off-by: Ye Li <[email protected]>

iMX8M/Makefile

@@ -0,0 +1,43 @@
+MKIMG = mkimage_imx8
+OUTIMG = flash.bin
+DCD_CFG_SRC = imx8mq_dcd.cfg
+DCD_CFG = imx8mq_dcd.cfg.tmp
+
+CC ?= gcc
+CFLAGS ?= -O2 -Wall -std=c99 -static
+INCLUDE = ./lib
+
+$(MKIMG): mkimage_imx8.c
+	@echo "Compiling mkimage_imx8"
+	$(CC) $(CFLAGS) mkimage_imx8.c -o $(MKIMG) -lz
+
+$(DCD_CFG): $(DCD_CFG_SRC)
+	@echo "Converting iMX8M DCD file" 
+	$(CC) -E -Wp,-MD,.imx8mq_dcd.cfg.cfgtmp.d  -nostdinc -Iinclude -I$(INCLUDE) -x c -o $(DCD_CFG) $(DCD_CFG_SRC)
+
+u-boot-spl-ddr.bin: u-boot-spl.bin lpddr4_pmu_train_imem.bin lpddr4_pmu_train_dmem.bin
+	@objcopy -I binary -O binary --pad-to 0x8000 --gap-fill=0x0 lpddr4_pmu_train_imem.bin lpddr4_pmu_train_imem_pad.bin
+	@cat lpddr4_pmu_train_imem_pad.bin lpddr4_pmu_train_dmem.bin > lpddr4_pmu_train_fw.bin
+	@cat u-boot-spl.bin lpddr4_pmu_train_fw.bin > u-boot-spl-ddr.bin
+	@rm -f lpddr4_pmu_train_fw.bin lpddr4_pmu_train_imem_pad.bin
+
+u-boot-atf.bin: u-boot.bin bl31.bin
+	@cp bl31.bin u-boot-atf.bin
+	@dd if=u-boot.bin of=u-boot-atf.bin bs=1K seek=128
+
+.PHONY: clean
+clean:
+	@rm -f $(MKIMG) $(DCD_CFG) .imx8mq_dcd.cfg.cfgtmp.d u-boot-atf.bin u-boot-spl-ddr.bin $(OUTIMG)
+
+flash_hdmi_spl_uboot: $(MKIMG) hdmi.bin u-boot-spl-ddr.bin u-boot-atf.bin csf_hdmi.bin
+	./mkimage_imx8 -hdmi hdmi.bin -loader u-boot-spl-ddr.bin 0x7E1000 -csf_hdmi csf_hdmi.bin -second_loader u-boot-atf.bin 0x40001000 0x60000 -out $(OUTIMG)
+
+
+flash_spl_uboot: $(MKIMG) u-boot-spl-ddr.bin u-boot-atf.bin
+	./mkimage_imx8 -loader u-boot-spl-ddr.bin 0x7E1000 -second_loader u-boot-atf.bin 0x40001000 0x60000 -out $(OUTIMG)
+
+#flash_dcd_uboot: $(MKIMG) $(DCD_CFG) u-boot-atf.bin
+#	./mkimage_imx8 -dcd $(DCD_CFG) -loader u-boot-atf.bin 0x40001000 -out $(OUTIMG)
+
+#flash_plugin: $(MKIMG) plugin.bin u-boot-spl-for-plugin.bin
+#	./mkimage_imx8 -plugin plugin.bin 0x912800 -loader u-boot-spl-for-plugin.bin 0x7F0000 -out $(OUTIMG)