[PATCH u-boot-marvell v2 05/20] arm: mvebu: Generate kwbimage.cfg with $(call cmd, ...)

[Pali Rohár]

Usage of $(call cmd,...) is standard way to call other commands which
generate things.

It also has the advantage of printing build information in the form
  KWBCFG  arch/arm/mach-mvebu/kwbimage.cfg
if verbosity is disabled, and printing the build command otherwise.

Note that the '#' character needs to be escaped in Makefile when used as
value for make variable assignment.

Signed-off-by: Pali Rohár <pali at kernel.org>
Reviewed-by: Marek Behún <marek.behun at nic.cz>
---
 arch/arm/mach-mvebu/Makefile | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-mvebu/Makefile b/arch/arm/mach-mvebu/Makefile
index 7e9c206ed6b8..acbaa6449d3d 100644
--- a/arch/arm/mach-mvebu/Makefile
+++ b/arch/arm/mach-mvebu/Makefile
@@ -58,10 +58,13 @@ KWB_REPLACE += SEC_FUSE_DUMP
 KWB_CFG_SEC_FUSE_DUMP = a38x
 endif
 
+quiet_cmd_kwbcfg = KWBCFG  $@
+cmd_kwbcfg = sed -ne '$(foreach V,$(KWB_REPLACE),s/^\#@$(V)/$(V) $(KWB_CFG_$(V))/;)p' \
+	<$< >$(dir $@)$(@F)
+
 $(obj)/kwbimage.cfg: $(src)/kwbimage.cfg.in include/autoconf.mk \
 		include/config/auto.conf
-	$(Q)sed -ne '$(foreach V,$(KWB_REPLACE),s/^#@$(V)/$(V) $(KWB_CFG_$(V))/;)p' \
-	<$< >$(dir $@)$(@F)
+	$(call cmd,kwbcfg)
 
 endif # CONFIG_SPL_BUILD
 obj-y	+= gpio.o
-- 
2.20.1