1 files changed, 39 insertions, 0 deletions

diff --git a/meta/classes/uboot-config.bbclass b/meta/classes/uboot-config.bbclass
new file mode 100644
index 0000000000..fc37620369
--- /dev/null
+++ b/meta/classes/uboot-config.bbclass
@@ -0,0 +1,39 @@
+# Allow easy override of U-Boot config for a machine
+#
+# The format to specify it, in the machine, is:
+#
+# UBOOT_CONFIG ??= <default>
+# UBOOT_CONFIG[foo] = "config,images"
+#
+# Copyright 2013 (C) O.S. Systems Software LTDA.
+
+addhandler uboot_config_eventhandler
+uboot_config_eventhandler[eventmask] = "bb.event.ConfigParsed"
+python uboot_config_eventhandler() {
+    ubootconfigflags = e.data.getVarFlags('UBOOT_CONFIG')
+    if not ubootconfigflags:
+        return
+
+    ubootconfig = (e.data.getVar('UBOOT_CONFIG', True) or "").split()
+    if len(ubootconfig) > 1:
+        raise bb.parse.SkipPackage('You can only have a single default for UBOOT_CONFIG.')
+    elif len(ubootconfig) == 0:
+        raise bb.parse.SkipPackage('You must set a default in UBOOT_CONFIG.')
+    ubootconfig = ubootconfig[0]
+
+    for f, v in ubootconfigflags.items():
+        if f == 'defaultval':
+            continue
+
+        items = v.split(',')
+        if items[0] and len(items) > 2:
+            raise bb.parse.SkipPackage('Only config,images can be specified!')
+
+        if ubootconfig == f:
+            bb.debug(1, "Setting UBOOT_MACHINE to %s." % items[0])
+            e.data.setVar('UBOOT_MACHINE', items[0])
+
+            if items[1]:
+                bb.debug(1, "Appending '%s' to IMAGE_FSTYPES." % items[1])
+                e.data.appendVar('IMAGE_FSTYPES', ' ' + items[1])
+}