1 files changed, 57 insertions, 0 deletions
diff --git a/package/u-boot/patches/patch-Makefile b/package/u-boot/patches/patch-Makefile
new file mode 100644
index 000000000..b2c069111
--- /dev/null
+++ b/package/u-boot/patches/patch-Makefile
@@ -0,0 +1,57 @@
+Sometimes it is required to build only host U-Boot tools without building
+U-Boot itself for either board.
+
+For example:
+ * In "buildroot" "uboot-tools" could be built for host just to have an ability
+   to create uImage.
+ * Linux distributions ship "mkimage" utility as a separate substance.
+
+This patch allows building host U-Boot tools separately from U-Boot itself and
+what is more important user only needs to have host compiler (gcc).
+
+To build host tools just execute:
+=====
+make tools HOST_TOOLS_ONLY=yes
+=====
+
+Without this patch to generate tools user needs:
+ 1. Configure any existing board with "make XXX_config"
+ 2. Execute tools building but still cross-compiler will be invoked and if
+    there's no proper cross-compiler in PATH compilation will fail.
+
+Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
+
+Cc: Masahiro Yamada <yamada.m at jp.panasonic.com>
+Cc: Tom Rini <trini at ti.com>
+Cc: Simon Glass <sjg at chromium.org>
+
+--- u-boot-2014.07.orig/Makefile	2014-07-14 19:16:45.000000000 +0200
++++ u-boot-2014.07/Makefile	2014-08-11 10:06:13.315946952 +0200
+@@ -483,9 +483,12 @@ ifeq ($(dot-config),1)
+ # load other configuration
+ include $(srctree)/config.mk
+ 
++# Don't check for config.mk presence if building host tools only
++ifneq ($(HOST_TOOLS_ONLY),yes)
+ ifeq ($(wildcard include/config.mk),)
+ $(error "System not configured - see README")
+ endif
++endif
+ 
+ # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
+ # that (or fail if absent).  Otherwise, search for a linker script in a
+@@ -1055,10 +1058,14 @@ ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
+ 	@/bin/false
+ endif
+ endif
++
++# Don't check for ldscript presence if building host tools only
++ifneq ($(HOST_TOOLS_ONLY),yes)
+ ifeq ($(wildcard $(LDSCRIPT)),)
+ 	@echo >&2 "  Could not find linker script."
+ 	@/bin/false
+ endif
++endif
+ 
+ archprepare: prepare1 scripts_basic
+