uboot-mediatek: add support for Bananapi BPi-R3

The Bananapi BPi-R3 board can boot from eMMC, SD card, SPI-NAND and
SPI-NOR, depending on the position of switches controlling the BOOTSEL
bootstrap pins as we as hard-wired chip-select lines. The position of the
chip-select switch SW6 decides whether either SD card or eMMC can be
accessed, SW5 selects either SPI-NAND or SPI-NOR.

Generate U-Boot for all 4 boot options. The SD card version allows
installation to SPI-NAND and SPI-NOR (eMMC cannot be accessed
simultanously with the SD card), the SPI-NAND version allows installation
to eMMC.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/boot/uboot-mediatek/Makefile

@@ -180,7 +180,60 @@ define U-Boot/mt7986_rfb
   BUILD_SUBTARGET:=filogic
   BUILD_DEVICES:=mediatek_mt7986-rfb
   UBOOT_CONFIG:=mt7986_rfb
-  UBOOT_IMAGE:=u-boot.bin
+  UBOOT_IMAGE:=u-boot.fip
+  BL2_BOOTDEV:=sdmmc
+  BL2_SOC:=mt7986
+  BL2_DDRTYPE:=ddr4
+  DEPENDS:=+trusted-firmware-a-mt7986-sdmmc-ddr4
+endef
+
+define U-Boot/mt7986_bananapi_bpi-r3-emmc
+  NAME:=BananaPi BPi-R3
+  BUILD_SUBTARGET:=filogic
+  BUILD_DEVICES:=bananapi_bpi-r3
+  UBOOT_CONFIG:=mt7986a_bpi-r3-emmc
+  UBOOT_IMAGE:=u-boot.fip
+  BL2_BOOTDEV:=emmc
+  BL2_SOC:=mt7986
+  BL2_DDRTYPE:=ddr4
+  DEPENDS:=+trusted-firmware-a-mt7986-emmc-ddr4
+endef
+
+define U-Boot/mt7986_bananapi_bpi-r3-sdmmc
+  NAME:=BananaPi BPi-R3
+  BUILD_SUBTARGET:=filogic
+  BUILD_DEVICES:=bananapi_bpi-r3
+  UBOOT_CONFIG:=mt7986a_bpi-r3-sd
+  UBOOT_IMAGE:=u-boot.fip
+  BL2_BOOTDEV:=sdmmc
+  BL2_SOC:=mt7986
+  BL2_DDRTYPE:=ddr4
+  DEPENDS:=+trusted-firmware-a-mt7986-sdmmc-ddr4
+endef
+
+define U-Boot/mt7986_bananapi_bpi-r3-snand
+  NAME:=BananaPi BPi-R3
+  BUILD_SUBTARGET:=filogic
+  BUILD_DEVICES:=bananapi_bpi-r3
+  UBOOT_CONFIG:=mt7986a_bpi-r3-snand
+  UBOOT_IMAGE:=u-boot.fip
+  BL2_BOOTDEV:=spim-nand
+  BL2_SOC:=mt7986
+  BL2_DDRTYPE:=ddr4
+  DEPENDS:=+trusted-firmware-a-mt7986-spim-nand-ddr4
+endef
+
+define U-Boot/mt7986_bananapi_bpi-r3-nor
+  NAME:=BananaPi BPi-R3
+  BUILD_SUBTARGET:=filogic
+  BUILD_DEVICES:=bananapi_bpi-r3
+  UBOOT_CONFIG:=mt7986a_bpi-r3-nor
+  UBOOT_IMAGE:=u-boot.fip
+  BL2_BOOTDEV:=nor
+  BL2_SOC:=mt7986
+  BL2_DDRTYPE:=ddr4
+  DEPENDS:=+trusted-firmware-a-mt7986-nor-ddr4
+  FIP_COMPRESS:=1
 endef
 
 UBOOT_TARGETS := \
@@ -199,6 +252,10 @@ UBOOT_TARGETS := \
 	mt7628_rfb \
 	ravpower_rp-wd009 \
 	mt7629_rfb \
+	mt7986_bananapi_bpi-r3-emmc \
+	mt7986_bananapi_bpi-r3-sdmmc \
+	mt7986_bananapi_bpi-r3-snand \
+	mt7986_bananapi_bpi-r3-nor \
 	mt7986_rfb
 
 ifdef CONFIG_TARGET_mediatek
@@ -207,11 +264,11 @@ endif
 
 define Build/fip-image
 	$(if $(FIP_COMPRESS),\
-		xz -f -e -k -9 -C crc32 $(STAGING_DIR_IMAGE)/$(BUILD_SUBTARGET)-$(BL2_BOOTDEV)-$(BL2_DDRBLOB)ddr-bl31.bin ;\
+		xz -f -e -k -9 -C crc32 $(STAGING_DIR_IMAGE)/$(if $(BL2_SOC),$(BL2_SOC),$(BUILD_SUBTARGET))-$(BL2_BOOTDEV)-$(if $(BL2_DDRTYPE),$(BL2_DDRTYPE)-)$(if $(BL2_DDRBLOB),$(BL2_DDRBLOB)ddr-)bl31.bin ;\
 		xz -f -e -k -9 -C crc32 $(PKG_BUILD_DIR)/u-boot.bin \
 	)
 	$(STAGING_DIR_HOST)/bin/fiptool create \
-		--soc-fw $(STAGING_DIR_IMAGE)/$(BUILD_SUBTARGET)-$(BL2_BOOTDEV)-$(BL2_DDRBLOB)ddr-bl31.bin$(if $(FIP_COMPRESS),.xz) \
+		--soc-fw $(STAGING_DIR_IMAGE)/$(if $(BL2_SOC),$(BL2_SOC),$(BUILD_SUBTARGET))-$(BL2_BOOTDEV)-$(if $(BL2_DDRTYPE),$(BL2_DDRTYPE)-)$(if $(BL2_DDRBLOB),$(BL2_DDRBLOB)ddr-)bl31.bin$(if $(FIP_COMPRESS),.xz) \
 		--nt-fw $(PKG_BUILD_DIR)/u-boot.bin$(if $(FIP_COMPRESS),.xz) \
 		$(PKG_BUILD_DIR)/u-boot.fip
 endef