soc: Introduce SoC specific Makefiles

Now that SoCs have different boot image targets, introduce SOC specific
Makefiles to represent boot targets. Below are boot targets:
- AM65x: sysfw.itb
- AM65x SR2: sysfw.itb
- J721E: sysfw.itb
- J7200: tiboot3.bin, sysfw.itb

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/Makefile b/Makefile
index 6e955dd71..e16deb535 100644
--- a/Makefile
+++ b/Makefile
@@ -38,6 +38,8 @@
 SOC ?= am65x
 CONFIG ?= evm
 
+include soc/$(SOC)/Makefile
+
 BUILD_SRC ?= .
 O ?= out
 BIN_DIR ?= .
@@ -122,10 +124,7 @@ ifeq ($(shell which python3),)
 $(error "No python3 in $(PATH), consider installing python3")
 endif
 
-.PHONY: all _objtree_build
-
-all: _objtree_build $(ITB) sysfw.itb
-
+.PHONY: _objtree_build
 _objtree_build:
         @mkdir -p $(objroot) $(soc_objroot) $(binroot)