Initialize /etc/fw_env.config from OnlPlatform data

packages/base/all/vendor-config-onl/src/bin/initubootenv

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+#!/usr/bin/python
+from onl.uboot import InitUbootApp
+InitUbootApp.main()

packages/base/all/vendor-config-onl/src/python/onl/uboot/InitUbootApp.py

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+"""InitUbootApp.py
+
+Initialize the fw_env.config file
+
+See
+https://developer.ridgerun.com/wiki/index.php/Setting_up_fw_printenv_to_modify_u-boot_environment_variables
+
+"""
+
+PATH = "/etc/fw_env.config"
+
+import sys
+import onl.platform.current
+
+platform = onl.platform.current.OnlPlatform()
+
+d = platform.platform_config
+if 'flat_image_tree' not in d:
+    raise ValueError("missing flat_image_tree section, probably not U-Boot")
+d = d.get('loader', {})
+d = d.get('environment', [])
+if not d:
+    raise ValueError("missing or empty loader.environment config")
+
+with open(PATH, "w") as fd:
+    fd.write("# device env_offset env_size sector_size sector_count\n")
+    for m in d:
+
+        dev = m.get('device', None)
+        if not dev:
+            raise ValueError("missing device key in environment settings")
+
+        off = m.get('env_offset', None)
+        if off is None:
+            raise ValueError("missing env_offset key in environment settings")
+
+        sz = m.get('env_size', None)
+        if not sz:
+            raise ValueError("missing env_size key in environment settings")
+
+        ssz = m.get('sector_size', None)
+        if not ssz:
+            raise ValueError("missing sector_size key in environment settings")
+
+        ns = m.get('sector_count', None)
+        if ns is None:
+            ns = sz / ssz
+            if ns == 0: ns = 1
+
+        fd.write("%s 0x%x 0x%x 0x%x %d\n"
+                 % (dev, off, sz, ssz, ns,))
+
+sys.exit(0)

packages/base/all/vendor-config-onl/src/python/onl/uboot/__init__.py

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+"""__init__.py
+
+"""