firmware-imx: add support for iMX8M firmware

Signed-off-by: Erik Larsson <karl.erik.larsson@gmail.com>
Signed-off-by: Christopher Dahlberg <crille.dahlberg@gmail.com>
[Thomas: use an intermediate FIRMWARE_IMX_DDRFW_DIR variable.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/freescale-imx/firmware-imx/Config.in

@@ -1,6 +1,6 @@
 config BR2_PACKAGE_FIRMWARE_IMX
 	bool "firmware-imx"
-	depends on BR2_arm # Only relevant for i.MX
+	depends on BR2_arm || BR2_aarch64 # Only relevant for i.MX
 	help
 	  Firmware blobs for the Freescale i.MX SoCs.
 

package/freescale-imx/firmware-imx/firmware-imx.mk

@@ -18,6 +18,34 @@ define FIRMWARE_IMX_EXTRACT_CMDS
 	$(call FREESCALE_IMX_EXTRACT_HELPER,$(FIRMWARE_IMX_DL_DIR)/$(FIRMWARE_IMX_SOURCE))
 endef
 
+ifeq ($(BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8M),y)
+FIRMWARE_IMX_INSTALL_IMAGES = YES
+FIRMWARE_IMX_DDRFW_DIR = $(@D)/firmware/ddr/synopsys
+define FIRMWARE_IMX_PREPARE_LPDDR4_FW
+	$(TARGET_OBJCOPY) -I binary -O binary --pad-to 0x8000 --gap-fill=0x0 \
+		$(FIRMWARE_IMX_DDRFW_DIR)/lpddr4_pmu_train_$(1)_imem.bin \
+		$(FIRMWARE_IMX_DDRFW_DIR)/lpddr4_pmu_train_$(1)_imem_pad.bin
+	$(TARGET_OBJCOPY) -I binary -O binary --pad-to 0x4000 --gap-fill=0x0 \
+		$(FIRMWARE_IMX_DDRFW_DIR)/lpddr4_pmu_train_$(1)_dmem.bin \
+		$(FIRMWARE_IMX_DDRFW_DIR)/lpddr4_pmu_train_$(1)_dmem_pad.bin
+	cat $(FIRMWARE_IMX_DDRFW_DIR)/lpddr4_pmu_train_$(1)_imem_pad.bin \
+		$(FIRMWARE_IMX_DDRFW_DIR)/lpddr4_pmu_train_$(1)_dmem_pad.bin > \
+		$(FIRMWARE_IMX_DDRFW_DIR)/lpddr4_pmu_train_$(1)_fw.bin
+endef
+
+define FIRMWARE_IMX_INSTALL_IMAGES_CMDS
+	# Create padded versions of lpddr4_pmu_* and generate lpddr4_pmu_train_fw.bin.
+	# lpddr4_pmu_train_fw.bin isneeded when generating imx-boot-imx8mqevk-sd.bin
+	# which is done in post-image script.
+	$(call FIRMWARE_IMX_PREPARE_LPDDR4_FW,1d)
+	$(call FIRMWARE_IMX_PREPARE_LPDDR4_FW,2d)
+	cat $(FIRMWARE_IMX_DDRFW_DIR)/lpddr4_pmu_train_1d_fw.bin \
+		$(FIRMWARE_IMX_DDRFW_DIR)/lpddr4_pmu_train_2d_fw.bin > \
+		$(BINARIES_DIR)/lpddr4_pmu_train_fw.bin
+	cp $(@D)/firmware/hdmi/cadence/signed_hdmi_imx8m.bin \
+		$(BINARIES_DIR)/signed_hdmi_imx8m.bin
+endef
+else
 define FIRMWARE_IMX_INSTALL_TARGET_CMDS
 	mkdir -p $(TARGET_DIR)/lib/firmware/imx
 	for blobdir in $(FIRMWARE_IMX_BLOBS); do \
@@ -27,5 +55,6 @@ define FIRMWARE_IMX_INSTALL_TARGET_CMDS
 	mv $(TARGET_DIR)/lib/firmware/imx/epdc/epdc_ED060XH2C1.fw.nonrestricted \
 		$(TARGET_DIR)/lib/firmware/imx/epdc/epdc_ED060XH2C1.fw
 endef
+endif
 
 $(eval $(generic-package))