BCM28XX uses mkknlimg which need GNU tr, check for it otherwise compile coreutils on host

package/coreutils/Makefile

@@ -15,9 +15,11 @@ PKG_URL:=		http://www.gnu.org/software/coreutils/
 PKG_SITES:=		http://ftp.gnu.org/gnu/coreutils/
 PKG_BB:=		1
 
+include $(ADK_TOPDIR)/mk/host.mk
 include $(ADK_TOPDIR)/mk/package.mk
 
-$(eval $(call PKG_template,COREUTILS,$(PKG_NAME),$(PKG_VERSION)-${PKG_RELEASE},${PKG_DEPENDS},${PKG_DESCR},${PKG_SECTION}))
+$(eval $(call HOST_template,COREUTILS,coreutils,$(PKG_VERSION)-${PKG_RELEASE}))
+$(eval $(call PKG_template,COREUTILS,coreutils,$(PKG_VERSION)-${PKG_RELEASE},${PKG_DEPENDS},${PKG_DESCR},${PKG_SECTION}))
 
 AUTOTOOL_STYLE:=	autoreconf
 CONFIGURE_ARGS+=	--disable-rpath
@@ -30,4 +32,5 @@ coreutils-install:
 	$(CP) $(WRKINST)/usr/libexec/* \
 		$(IDIR_COREUTILS)/usr/sbin
 
+include ${ADK_TOPDIR}/mk/host-bottom.mk
 include ${ADK_TOPDIR}/mk/pkg-bottom.mk

scripts/prereq.sh

@@ -450,6 +450,13 @@ if ! which qemu-img >/dev/null 2>&1; then
   host_build_qemu=1
 fi
 
+host_build_coreutils=0
+if which tr >/dev/null 2>&1; then
+  if ! tr --version 2>/dev/null|grep GNU >/dev/null;then
+    host_build_coreutils=1
+  fi
+fi
+
 echo "config ADK_HOST_BUILD_TOOLS" > $topdir/target/config/Config.in.prereq
 printf "\t%s\n" "bool" >> $topdir/target/config/Config.in.prereq
 printf "\t%s\n" "default y" >> $topdir/target/config/Config.in.prereq
@@ -521,6 +528,9 @@ fi
 if [ $host_build_qemu -eq 1 ]; then
   printf "\t%s\n" "select ADK_HOST_BUILD_QEMU if ADK_HOST_NEED_QEMU" >> $topdir/target/config/Config.in.prereq
 fi
+if [ $host_build_coreutils -eq 1 ]; then
+  printf "\t%s\n" "select ADK_HOST_BUILD_COREUTILS if ADK_HOST_NEED_COREUTILS" >> $topdir/target/config/Config.in.prereq
+fi
 
 # create Host OS symbols
 case $os in

target/arm/Makefile

@@ -116,15 +116,10 @@ endif
 
 kernel-strip:
 	@cp $(KERNEL) $(BUILD_DIR)/$(TARGET_KERNEL)
-ifeq ($(ADK_TARGET_SYSTEM_RASPBERRY_PI),y)
-	@echo adding DT trailer to kernel $(MAKE_TRACE)
-	-rm $(BUILD_DIR)/$(TARGET_KERNEL)
-	$(ADK_TOPDIR)/scripts/mkknlimg --dtok $(KERNEL) $(BUILD_DIR)/$(TARGET_KERNEL) $(MAKE_TRACE)
-endif
-ifeq ($(ADK_TARGET_SYSTEM_RASPBERRY_PI2),y)
+ifeq ($(ADK_TARGET_BOARD_BCM28XX),y)
 	@echo adding DT trailer to kernel $(MAKE_TRACE)
 	-rm $(BUILD_DIR)/$(TARGET_KERNEL)
-	$(ADK_TOPDIR)/scripts/mkknlimg --dtok $(KERNEL) $(BUILD_DIR)/$(TARGET_KERNEL) $(MAKE_TRACE)
+	PATH='$(HOST_PATH)' $(ADK_TOPDIR)/scripts/mkknlimg --dtok $(KERNEL) $(BUILD_DIR)/$(TARGET_KERNEL) $(MAKE_TRACE)
 endif
 
 kernel-install: kernel-strip

target/config/Config.in.tools

@@ -170,6 +170,15 @@ config ADK_HOST_BUILD_QEMU
 	bool
 	default n
 
+config ADK_HOST_NEED_COREUTILS
+	bool
+	default y if ADK_TARGET_BOARD_BCM28XX
+	default n
+
+config ADK_HOST_BUILD_COREUTILS
+	bool
+	default n
+
 # optional, must be used from OpenADK
 config ADK_HOST_NEED_MTD_UTILS
 	bool