uboot-bmips: Add U-Boot for the BMIPS target

This is needed to boot the BCM6238-based Inteno XG6846.
Currently this is restricted to the XG6846 board.

Reviewed-by: Paul Donald <newtwen+github@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

.github/labeler.yml

@@ -30,6 +30,7 @@
   - "package/boot/arm-trusted-firmware-bcm63xx/**"
 "target/bmips":
   - "target/linux/bmips/**"
+  - "package/boot/uboot-bmips/**"
 "target/d1":
   - "target/linux/d1/**"
   - "package/boot/uboot-d1/**"

package/boot/uboot-bmips/Makefile

@@ -0,0 +1,32 @@
+include $(TOPDIR)/rules.mk
+
+PKG_VERSION:=2024.04
+PKG_HASH:=18a853fe39fad7ad03a90cc2d4275aeaed6da69735defac3492b80508843dd4a
+PKG_RELEASE:=$(AUTORELEASE)
+
+include $(INCLUDE_DIR)/u-boot.mk
+include $(INCLUDE_DIR)/package.mk
+
+define U-Boot/Default
+  BUILD_TARGET:=bmips
+  BUILD_SUBTARGET:=bcm6328
+  UBOOT_CONFIG:=inteno_xg6846_ram
+  UBOOT_BOARD:=$(1)
+endef
+
+define U-Boot/xg6846
+  NAME:=Inteno XG6846
+  BUILD_DEVICES:=inteno_xg6846
+endef
+
+UBOOT_TARGETS := xg6846
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(STAGING_DIR_IMAGE)
+	$(CP) $(PKG_BUILD_DIR)/$(UBOOT_IMAGE) $(STAGING_DIR_IMAGE)/$(BUILD_DEVICES)-u-boot.bin
+endef
+
+define Package/u-boot/install/default
+endef
+
+$(eval $(call BuildPackage/U-Boot))