VOL-2014: Rebase bal30-dev branch with master and re-verify sanity with SEBA2.0 and VOLTHA2.x before merge to master
          Squashed all commits from bal30-dev branch to master branch as a single commit.
          Bumped version to 2.0.0-dev .
          Update README.md with the required ONL version for BAL3.1 .

VOL-2130: Wrong queue id assigned for downstream queue on tm_sched
          for the subscriber when using single gem port.
          Use queue_id as 0 when using single gem port.

          Issues need to be taken care:
          VOL-1580: Support reporting ONU Registration ID as part of ONU Activation Indication
          - commented the code developed for VOL-1580 to fetch ONU registration ID as it uses BAL2.6 specific API's.
          - Need to check how the same can be achieved using BAL3.x API's to fetch ONU registration ID

Set .gitreview defaultbranch to bal30-dev
Rebase change - Removed .gitreview defaultbranch so that by default it will point to master

Change-Id: Ib57e52e98cf09f4fa3dbaa9156a4375b7dc6ee43

Rebase: [VOL-1635] [BAL3.0 Bridade] OLT Activation [VOL-1636] [BAL3.0 Bridade] ONU Discovery,
        This OpenOLT agent supports the BAL V3.0.3.3 SDK. OLT/ONU activation from voltha-1.7 is successful

Change-Id: I860b31317172139cd4c4244a93e79e0c3ce4fdf8

Rebase: [VOL-1685][BAL3.0 Bridade] generate OpenOLT debian package file

Change-Id: Ib0332d948602bf7892b6aae91a4147356237f7e2

Rebase: [VOL-1685][BAL3.0 Brigade] generate OpenOLT debian package file
missing copy shell files (dev_mgmt_daemon and openolt).

Change-Id: Id29dc24be4d1d5fc12a26884e5b5a69de91fbd69

Rebase: [VOL-1685][BAL3.0 Brigade] generate OpenOLT debian package file

Change-Id: Ic5453616c0dbdbc1fb1eb241feba1cbfca5e8e85

Rebase: [VOL-1852][BAL3.0 Brigade] Support Edge-core OLT ASFvOLT16 (XGS-PON) and
ASGvOLT64 (GPON) devices

Change-Id: I316d35bc76c38b5381e8896148b4ee5cebbd1099

VOL-1850: Fix packet duplication with TM Queue Mapping profile
          Fix for US and DS scheduler ID allocation irrespective of device type(asfvolt16/asfvolt64)
          README.md file update with BAL3.1.1.1 specifications

Change-Id: I255bf7a4ff35771e9c628bb822ba2190a1fcd5ed

Rebase: [VOL-1787] : This commit sets up a unit-test framework for openolt
                     agent based on gtest, gmock and c-mock utilities.
                     A sample unit-test case to test EnableOlt success case is also
                     added. More test cases will be added in future commit.

Change-Id: If020be489a04d97df5fcbc15e9207deeee2fcfac

Rebase: [VOL-2040]: Patch the macro required by core.cc into bcmos_system.h file

Change-Id: Ic841785b2ce451b1acaf007074b8c458687bc753

Rebase: [VOL-2043] : OLT Enable Test Case

        - Added more test cases for OLT Enable. Now covers all scenarios.
        - Fixed typos in unit test README.md

Change-Id: Ib931d89cedee78fe40ca67761a028365a047ebc3

Rebase: VOL-1941: Use protobufs from the voltha-protos repo, not a copy

        - Use protobufs from the voltha-protos repo, not a copy
        - Provided option to specify the openolt proto version via make option
        - Removed duplicate README.md

Change-Id: Id67714c8119521f8358aaa9245268c47b7e843cf
diff --git a/protos/Makefile b/protos/Makefile
index aa5f8da..7f2c78c 100644
--- a/protos/Makefile
+++ b/protos/Makefile
@@ -14,21 +14,30 @@
 
 HOST_SYSTEM = $(shell uname | cut -f 1 -d_)
 SYSTEM ?= $(HOST_SYSTEM)
+
+# OpenOLT Proto version.
+# This specifies the GIT tag in https://github.com/opencord/voltha-protos
+# repo that we need to refer to, to pick the right version of
+# openolt.proto and tech_profile.proto
+OPENOLT_PROTO_VER ?= v1.0.3
+
 CXX ?= g++
 #powerpc64-fsl-linux-g++
-CPPFLAGS += `pkg-config --cflags protobuf grpc` -I googleapis/gens
+CPPFLAGS += `pkg-config --cflags protobuf grpc` -I googleapis/gens -I./
 CXXFLAGS += -std=c++11
 #LDFLAGS += -L/usr/local/lib `pkg-config --libs protobuf grpc++ grpc` -ldl
 PROTOC = protoc
 GRPC_CPP_PLUGIN = grpc_cpp_plugin
 GRPC_CPP_PLUGIN_PATH ?= `which $(GRPC_CPP_PLUGIN)`
 
-OBJS = tech_profile.pb.o tech_profile.grpc.pb.o openolt.pb.o openolt.grpc.pb.o ./googleapis/gens/google/api/annotations.grpc.pb.o ./googleapis/gens/google/api/annotations.pb.o ./googleapis/gens/google/api/http.pb.o
+OBJS = voltha_protos/tech_profile.pb.o voltha_protos/tech_profile.grpc.pb.o voltha_protos/openolt.pb.o voltha_protos/openolt.grpc.pb.o ./googleapis/gens/google/api/annotations.grpc.pb.o ./googleapis/gens/google/api/annotations.pb.o ./googleapis/gens/google/api/http.pb.o
 
-all: googleapis libopenoltapi.a
+.DEFAULT_GOAL := all
+
+all: googleapis get_openolt_proto libopenoltapi.a
 
 libopenoltapi.a: $(OBJS)
-	ar ru $@ $^
+	ar cr $@ $^
 	ranlib $@
 
 googleapis:
@@ -40,16 +49,27 @@
 		make -C googleapis LANGUAGE=cpp GRPCPLUGIN=$(GRPC_CPP_PLUGIN_PATH) all; \
 	fi;
 
-.PRECIOUS: %.grpc.pb.cc
-%.grpc.pb.cc: %.proto
+get_openolt_proto:
+	if [ ! -e "voltha_protos" ]; then \
+		mkdir voltha_protos; \
+	fi;\
+	if [ ! -e "voltha_protos/openolt.proto" ]; then \
+		wget -O voltha_protos/openolt.proto https://raw.githubusercontent.com/opencord/voltha-protos/$(OPENOLT_PROTO_VER)/protos/voltha_protos/openolt.proto; \
+	fi; \
+	if [ ! -e "tech_profile.proto" ]; then \
+		wget -O voltha_protos/tech_profile.proto https://raw.githubusercontent.com/opencord/voltha-protos/$(OPENOLT_PROTO_VER)/protos/voltha_protos/tech_profile.proto; \
+	fi;
+
+.PRECIOUS: voltha_protos/%.grpc.pb.cc
+voltha_protos/%.grpc.pb.cc: voltha_protos/%.proto
 	$(PROTOC) --proto_path=. -I./googleapis --grpc_out=. --plugin=protoc-gen-grpc=$(GRPC_CPP_PLUGIN_PATH) $<
 
-.PRECIOUS: %.pb.cc
-%.pb.cc: %.proto
-	$(PROTOC) --proto_path=. -I./googleapis --cpp_out=. $<
+.PRECIOUS: voltha_protos/%.pb.cc
+voltha_protos/%.pb.cc: voltha_protos/%.proto
+	$(PROTOC) --proto_path=. -I./googleapis -I./ --cpp_out=. $<
 
 clean:
-	rm -f *.o *.pb.cc *.pb.h *.a
+	rm *.a && cd voltha_protos/ && rm -f *.o *.pb.cc *.pb.h
 
 distclean: clean
 	rm -rf googleapis