fix(plat/marvell/a3k): Fix check for external dependences

Old Marvell a3700_utils and mv-ddr tarballs do not have to work with
latest TF-A code base. Marvell do not provide these old tarballs on
Extranet anymore. Public version on github repository contains all
patches and is working fine, so for public TF-A builds use only public
external dependencies from git.
Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: Iee5ac6daa9a1826a5b80a8d54968bdbb8fe72f61

docs/plat/marvell/armada/build.rst

@@ -130,16 +130,15 @@ There are several build options:
 - MV_DDR_PATH
 
         This parameter is required for ``mrvl_flash`` and ``mrvl_uart`` targets.
+        For A7K/8K/CN913x it is used for BLE build and for Armada37x0 it used
+        for ddr_tool build.
 
-        For A7K/8K/CN913x, use this parameter to point to mv_ddr driver sources to allow BLE build. For A37x0,
-        it is used for ddr_tool build.
+        Specify path to the full checkout of Marvell mv-ddr-marvell git
+        repository. Checkout must contain also .git subdirectory because
+        mv-ddr build process calls git commands.
 
-        Usage example: MV_DDR_PATH=path/to/mv_ddr
-
-        For the mv_ddr source location, check the section "Tools and external components installation"
-
-        If MV_DDR_PATH source code is a git snapshot then provide path to the full git
-        repository (including .git subdir) because mv_ddr build process calls git commands.
+        Do not remove any parts of git checkout becuase build process and other
+        applications need them for correct building and version determination.
 
 - CP_NUM
 
@@ -234,12 +233,17 @@ There are several build options:
 
 - WTP
 
-        For Armada37x0 only, use this parameter to point to wtptools source code
-        directory, which can be found as a3700_utils.zip in the release. Usage
-        example: ``WTP=/path/to/a3700_utils``
+        For Armada37x0 only.
+
+        Specify path to the full checkout of Marvell A3700-utils-marvell git
+        repository. Checkout must contain also .git subdirectory because WTP
+        build process calls git commands.
+
+        WTP build process uses also Marvell mv-ddr-marvell git repository
+        specified in MV_DDR_PATH option.
 
-        If WTP source code is a git snapshot then provide path to the full git
-        repository (including .git subdir) because WTP build process calls git commands.
+        Do not remove any parts of git checkout becuase build process and other
+        applications need them for correct building and version determination.
 
 - CRYPTOPP_PATH
 

plat/marvell/armada/a3k/common/a3700_common.mk

@@ -74,7 +74,7 @@ endif
 ifdef WTP
 
 $(if $(wildcard $(value WTP)/*),,$(error "'WTP=$(value WTP)' was specified, but '$(value WTP)' directory does not exist"))
-$(if $(shell test -s "$(value WTP)/branch.txt" || git -C $(value WTP) rev-parse --show-cdup 2>&1),$(error "'WTP=$(value WTP)' was specified, but '$(value WTP)' does not contain valid Marvell a3700_utils release tarball nor git repository"))
+$(if $(shell git -C $(value WTP) rev-parse --show-cdup 2>&1),$(error "'WTP=$(value WTP)' was specified, but '$(value WTP)' does not contain valid A3700-utils-marvell git repository"))
 
 DOIMAGEPATH	:= $(WTP)
 DOIMAGETOOL	:= $(DOIMAGEPATH)/wtptp/src/TBB_Linux/release/TBB_linux
@@ -152,7 +152,7 @@ $(BUILD_PLAT)/wtmi.bin: $(WTMI_MULTI_IMG)
 $(TIMDDRTOOL): FORCE
 	$(if $(value MV_DDR_PATH),,$(error "Platform '${PLAT}' for ddr tool requires MV_DDR_PATH. Please set MV_DDR_PATH to point to the right directory"))
 	$(if $(wildcard $(value MV_DDR_PATH)/*),,$(error "'MV_DDR_PATH=$(value MV_DDR_PATH)' was specified, but '$(value MV_DDR_PATH)' directory does not exist"))
-	$(if $(shell test -s "$(value MV_DDR_PATH)/branch.txt" || git -C $(value MV_DDR_PATH) rev-parse --show-cdup 2>&1),$(error "'MV_DDR_PATH=$(value MV_DDR_PATH)' was specified, but '$(value MV_DDR_PATH)' does not contain valid Marvell mv_ddr release tarball nor git repository"))
+	$(if $(shell git -C $(value MV_DDR_PATH) rev-parse --show-cdup 2>&1),$(error "'MV_DDR_PATH=$(value MV_DDR_PATH)' was specified, but '$(value MV_DDR_PATH)' does not contain valid mv-ddr-marvell git repository"))
 	$(Q)$(MAKE) --no-print-directory -C $(DOIMAGEPATH) MV_DDR_PATH=$(MV_DDR_PATH) DDR_TOPOLOGY=$(DDR_TOPOLOGY) mv_ddr
 
 $(BUILD_PLAT)/$(UART_IMAGE): $(BUILD_PLAT)/$(BOOT_IMAGE) $(BUILD_PLAT)/wtmi.bin $(DOIMAGETOOL) $(TIMBUILD) $(TIMDDRTOOL)