arm-trusted-firmware-mediatek: add MT7988 BL2 DDR4 images

Other than most boards with DDR4 the ASUS ZenWiFi BT8 cannot use the
"comb" DDR calibration option and needs only the "ddr4" option set
instead.

Build TF-A SPIM-NAND with UBI as well as to boot from RAM with
mtk_uartboot for MT7988 with DDR4 RAM.

Signed-off-by: John Crispin <[email protected]>

package/boot/arm-trusted-firmware-mediatek/Makefile

@@ -452,6 +452,17 @@ define Trusted-Firmware-A/mt7988-ram-comb
   DEFAULT:=TARGET_mediatek_filogic
 endef
 
+define Trusted-Firmware-A/mt7988-ram-ddr4
+  NAME:=MediaTek MT7988 (RAM/ddr4)
+  BOOT_DEVICE:=ram
+  BUILD_SUBTARGET:=filogic
+  PLAT:=mt7988
+  RAM_BOOT_UART_DL:=1
+  HIDDEN:=
+  DEFAULT:=TARGET_mediatek_filogic
+  DDR_TYPE:=ddr4
+endef
+
 define Trusted-Firmware-A/mt7988-nor-comb
   NAME:=MediaTek MT7988 (SPI-NOR)
   BOOT_DEVICE:=nor
@@ -510,6 +521,15 @@ define Trusted-Firmware-A/mt7988-spim-nand-ubi-comb
   USE_UBI:=1
 endef
 
+define Trusted-Firmware-A/mt7988-spim-nand-ubi-ddr4
+  NAME:=MediaTek MT7988 (SPI-NAND via SPIM, DDR4)
+  BOOT_DEVICE:=spim-nand
+  BUILD_SUBTARGET:=filogic
+  PLAT:=mt7988
+  DDR_TYPE:=ddr4
+  USE_UBI:=1
+endef
+
 TFA_TARGETS:= \
 	mt7622-nor-1ddr \
 	mt7622-nor-2ddr \
@@ -560,13 +580,15 @@ TFA_TARGETS:= \
 	mt7988-snand-ddr4 \
 	mt7988-spim-nand-ddr4 \
 	mt7988-ram-comb \
+	mt7988-ram-ddr4 \
 	mt7988-emmc-comb \
 	mt7988-nor-comb \
 	mt7988-sdmmc-comb \
 	mt7988-snand-comb \
 	mt7988-snand-ubi-comb \
 	mt7988-spim-nand-comb \
-	mt7988-spim-nand-ubi-comb
+	mt7988-spim-nand-ubi-comb \
+	mt7988-spim-nand-ubi-ddr4
 
 TFA_MAKE_FLAGS += \
 	BOOT_DEVICE=$(BOOT_DEVICE) \
@@ -594,6 +616,7 @@ Package/trusted-firmware-a-mt7981-ram-ddr4/install = $(Package/trusted-firmware-
 Package/trusted-firmware-a-mt7986-ram-ddr3/install = $(Package/trusted-firmware-a-ram/install)
 Package/trusted-firmware-a-mt7986-ram-ddr4/install = $(Package/trusted-firmware-a-ram/install)
 Package/trusted-firmware-a-mt7988-ram-comb/install = $(Package/trusted-firmware-a-ram/install)
+Package/trusted-firmware-a-mt7988-ram-ddr4/install = $(Package/trusted-firmware-a-ram/install)
 
 define Package/trusted-firmware-a/install
 	$(INSTALL_DIR) $(STAGING_DIR_IMAGE)