bcm63xx-cfe: add package with CFE RAM binaries

CFE RAM is a second stage bootloader which is usually loaded by CFE ROM
(first stage bootloader) from a JFFS2 partition stored on the NAND.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

package/kernel/bcm63xx-cfe/Makefile

@@ -0,0 +1,42 @@
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/kernel.mk
+
+PKG_NAME:=bcm63xx-cfe
+PKG_VERSION:=2020-05-18
+PKG_RELEASE:=1
+
+PKG_SOURCE_URL:=https://github.com/openwrt/bcm63xx-cfe.git
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_VERSION:=efe3b81121a84c0b8ba6a7d0d47cd5eeeb23808d
+PKG_MIRROR_HASH:=299dcf6ef1ad034df26daee6446b574abcd7526a2fe90fb8115890e71bc0d58b
+
+PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(PKG_NAME)
+
+PKG_FLAGS:=nonshared
+
+include $(INCLUDE_DIR)/package.mk
+
+TAR_OPTIONS:=--strip-components 1 $(TAR_OPTIONS)
+TAR_CMD=$(HOST_TAR) -C $(1) $(TAR_OPTIONS)
+
+define Package/bcm63xx-cfe
+  SECTION:=boot
+  CATEGORY:=Boot Loaders
+  DEPENDS:=@TARGET_bcm63xx
+  TITLE:=bcm63xx-cfe
+  DEFAULT:=y if TARGET_bcm63xx
+endef
+
+define Package/bcm63xx-cfe/description
+  CFE RAM binaries for bcm63xx.
+endef
+
+define Build/Compile
+	true
+endef
+
+define Package/bcm63xx-cfe/install
+	true
+endef
+
+$(eval $(call BuildPackage,bcm63xx-cfe))