flash: support flashing multiple configurations of a single board

Some boards define multiple configuration which all are maintained under
the same board directory. The flasher was looking for an openocd.cfg
based on the board name, which can't be found for such boards.

Use the variable BOARD_DIR provided by cmake instead of trying to
assemble the board directory location on our own.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

cmake/flash/CMakeLists.txt

@@ -12,8 +12,7 @@ list(APPEND ENV_VARS_FORMATTED
   KERNEL_ELF_NAME=${KERNEL_ELF_NAME}
   KERNEL_HEX_NAME=${KERNEL_HEX_NAME}
   KERNEL_BIN_NAME=${KERNEL_BIN_NAME}
-             ARCH=${ARCH}
-       BOARD_NAME=${BOARD}
+        BOARD_DIR=${BOARD_DIR}
               GDB=${CMAKE_GDB}
           OPENOCD_DEFAULT_PATH=${OPENOCD_DEFAULT_PATH}
           OPENOCD=${OPENOCD}

scripts/support/runner/arc.py

@@ -16,7 +16,7 @@ DEFAULT_ARC_GDB_PORT = 3333
 
 
 class ArcBinaryRunner(ZephyrBinaryRunner):
-    '''Runner front-end for the ARC architecture, using openocd.'''
+    '''Runner front-end for the EM Starterkit board, using openocd.'''
 
     # This unusual 'flash' implementation matches the original shell script.
     #
@@ -26,7 +26,7 @@ class ArcBinaryRunner(ZephyrBinaryRunner):
     #
     # TODO: exit immediately when flashing is done, leaving Zephyr running.
 
-    def __init__(self, elf, zephyr_base, arch, board_name,
+    def __init__(self, elf, zephyr_base, board_dir,
                  gdb, openocd='openocd', extra_init=None, default_path=None,
                  tui=None, tcl_port=DEFAULT_ARC_TCL_PORT,
                  telnet_port=DEFAULT_ARC_TELNET_PORT,
@@ -34,8 +34,7 @@ class ArcBinaryRunner(ZephyrBinaryRunner):
         super(ArcBinaryRunner, self).__init__(debug=debug)
         self.elf = elf
         self.zephyr_base = zephyr_base
-        self.arch = arch
-        self.board_name = board_name
+        self.board_dir = board_dir
         self.gdb = gdb
         search_args = []
         if default_path is not None:
@@ -59,8 +58,7 @@ class ArcBinaryRunner(ZephyrBinaryRunner):
         - O: build output directory
         - KERNEL_ELF_NAME: zephyr kernel binary in ELF format
         - ZEPHYR_BASE: zephyr Git repository base directory
-        - ARCH: board architecture
-        - BOARD_NAME: zephyr name of board
+        - BOARD_DIR: board directory
         - GDB: gdb executable
 
         Optional:
@@ -76,8 +74,7 @@ class ArcBinaryRunner(ZephyrBinaryRunner):
         elf = path.join(get_env_or_bail('O'),
                         get_env_or_bail('KERNEL_ELF_NAME'))
         zephyr_base = get_env_or_bail('ZEPHYR_BASE')
-        arch = get_env_or_bail('ARCH')
-        board_name = get_env_or_bail('BOARD_NAME')
+        board_dir = get_env_or_bail('BOARD_DIR')
         gdb = get_env_or_bail('GDB')
 
         openocd = os.environ.get('OPENOCD', 'openocd')
@@ -93,7 +90,7 @@ class ArcBinaryRunner(ZephyrBinaryRunner):
         gdb_port = int(os.environ.get('GDB_PORT',
                                       str(DEFAULT_ARC_GDB_PORT)))
 
-        return ArcBinaryRunner(elf, zephyr_base, arch, board_name,
+        return ArcBinaryRunner(elf, zephyr_base, board_dir,
                                gdb, openocd=openocd, extra_init=extra_init,
                                default_path=default_path, tui=tui,
                                tcl_port=tcl_port, telnet_port=telnet_port,
@@ -103,9 +100,8 @@ class ArcBinaryRunner(ZephyrBinaryRunner):
         if command not in {'flash', 'debug', 'debugserver'}:
             raise ValueError('{} is not supported'.format(command))
 
-        kwargs['openocd-cfg'] = path.join(self.zephyr_base, 'boards',
-                                          self.arch, self.board_name,
-                                          'support', 'openocd.cfg')
+        kwargs['openocd-cfg'] = path.join(self.board_dir, 'support',
+                                          'openocd.cfg')
 
         if command in {'flash', 'debug'}:
             self.flash_debug(command, **kwargs)

scripts/support/runner/openocd.py

@@ -57,8 +57,7 @@ class OpenOcdBinaryRunner(ZephyrBinaryRunner):
         Required:
 
         - ZEPHYR_BASE: zephyr Git repository base directory
-        - ARCH: board architecture
-        - BOARD_NAME: zephyr name of board
+        - BOARD_DIR: directory of board definition
 
         Optional:
 
@@ -92,10 +91,8 @@ class OpenOcdBinaryRunner(ZephyrBinaryRunner):
         - GDB_PORT: openocd gdb port, defaults to 3333
         '''
         zephyr_base = get_env_or_bail('ZEPHYR_BASE')
-        arch = get_env_or_bail('ARCH')
-        board_name = get_env_or_bail('BOARD_NAME')
-        openocd_config = path.join(zephyr_base, 'boards', arch,
-                                   board_name, 'support', 'openocd.cfg')
+        board_dir = get_env_or_bail('BOARD_DIR')
+        openocd_config = path.join(board_dir, 'support', 'openocd.cfg')
 
         openocd = os.environ.get('OPENOCD', 'openocd')
         default_path = os.environ.get('OPENOCD_DEFAULT_PATH', None)