From 8012cc5c2f2a96fdea66359e8c559a3804cebdd4 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Sat, 4 Nov 2017 03:12:28 +0900
Subject: [PATCH] Build: introduce ${BUILD_PLAT} target to create the top build
 directory

Some platforms (for ex. UniPhier) want to create files in the very
top of the build directory.  Add ${BUILD_PLAT} so such files can
depend on it.

Make existing directory targets depend on ${BUILD_PLAT} because
they are sub-directories of ${BUILD_PLAT}.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
 Makefile                         | 2 ++
 make_helpers/build_macros.mk     | 2 +-
 plat/rockchip/rk3399/platform.mk | 2 +-
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index b32b417b6..a648d8c0b 100644
--- a/Makefile
+++ b/Makefile
@@ -260,6 +260,8 @@ include lib/stack_protector/stack_protector.mk
 
 include ${PLAT_MAKEFILE_FULL}
 
+$(eval $(call MAKE_PREREQ_DIR,${BUILD_PLAT}))
+
 # Platform compatibility is not supported in AArch32
 ifneq (${ARCH},aarch32)
 # If the platform has not defined ENABLE_PLAT_COMPAT, then enable it by default
diff --git a/make_helpers/build_macros.mk b/make_helpers/build_macros.mk
index e59a64b42..7531f6d80 100644
--- a/make_helpers/build_macros.mk
+++ b/make_helpers/build_macros.mk
@@ -291,7 +291,7 @@ define MAKE_BL
 
 # Create generators for object directory structure
 
-$(eval $(call MAKE_PREREQ_DIR,${BUILD_DIR},))
+$(eval $(call MAKE_PREREQ_DIR,${BUILD_DIR},${BUILD_PLAT}))
 
 $(eval $(foreach objd,${OBJ_DIRS},$(call MAKE_PREREQ_DIR,${objd},${BUILD_DIR})))
 
diff --git a/plat/rockchip/rk3399/platform.mk b/plat/rockchip/rk3399/platform.mk
index 85cca1b6b..6cd5b242a 100644
--- a/plat/rockchip/rk3399/platform.mk
+++ b/plat/rockchip/rk3399/platform.mk
@@ -88,7 +88,7 @@ ${RK_PLAT_SOC}/drivers/pmu/pmu_fw.c: $(RK3399M0FW)
 ${BUILD_PLAT}/bl31/cdn_dp.o: CCACHE_EXTRAFILES=$(HDCPFW)
 ${RK_PLAT_SOC}/drivers/dp/cdn_dp.c: $(HDCPFW)
 
-$(eval $(call MAKE_PREREQ_DIR,${BUILD_M0},))
+$(eval $(call MAKE_PREREQ_DIR,${BUILD_M0},${BUILD_PLAT}))
 .PHONY: $(RK3399M0FW)
 $(RK3399M0FW): | ${BUILD_M0}
 	$(MAKE) -C ${RK_PLAT_SOC}/drivers/m0 BUILD=$(abspath ${BUILD_PLAT}/m0)