[OE-core] [PATCH v2 1/2] uboot-config.bbclass: Allow multiple U-Boot config for machine

[Chunrong Guo]

   This adds support to build multiple U-Boot configs for a machine; this
   is useful when we have support for different media boots which require
   different U-Boot configuration (e.g: eMMC and NAND).

Signed-off-by: Chunrong Guo <B40290 at freescale.com>
---
 meta/classes/uboot-config.bbclass | 42 +++++++++++++++------------------------
 1 file changed, 16 insertions(+), 26 deletions(-)

diff --git a/meta/classes/uboot-config.bbclass b/meta/classes/uboot-config.bbclass
index 8ac1b71..f70ca88 100644
--- a/meta/classes/uboot-config.bbclass
+++ b/meta/classes/uboot-config.bbclass
@@ -31,31 +31,21 @@ python () {
         return
 
     ubootconfig = (d.getVar('UBOOT_CONFIG', True) or "").split()
-    if len(ubootconfig) > 1:
-        raise bb.parse.SkipPackage('You can only have a single default for UBOOT_CONFIG.')
+    if len(ubootconfig) > 0:
+        for config in ubootconfig:
+            for f, v in ubootconfigflags.items():
+                if f == 'defaultval':
+                    continue
+                if config == f: 
+                    items = v.split(',')
+                    if items[0] and len(items) > 2:
+                        raise bb.parse.SkipPackage('Only config,images can be specified!')
+                    d.appendVar('UBOOT_MACHINE', ' ' + items[0])
+                    # IMAGE_FSTYPES appending
+                    if len(items) > 1 and items[1]:
+                        bb.debug(1, "Appending '%s' to IMAGE_FSTYPES." % items[1])
+                        d.appendVar('IMAGE_FSTYPES', ' ' + items[1])
+                    break
     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])
-            d.setVar('UBOOT_MACHINE', items[0])
-
-            # IMAGE_FSTYPES appending
-            if len(items) > 1 and items[1]:
-                bb.debug(1, "Appending '%s' to IMAGE_FSTYPES." % items[1])
-                d.appendVar('IMAGE_FSTYPES', ' ' + items[1])
-
-            # Go out as we found a match!
-            break
-    else:
-        raise bb.parse.SkipPackage("UBOOT_CONFIG %s is not supported" % ubootconfig)
+       raise bb.parse.SkipPackage('You must set a default in UBOOT_CONFIG.')
 }
-- 
1.9.2