add preliminary LEON support

SVN-Revision: 25139

target/linux/leon/patches/025-greth_bootloader_disable_device_node.patch

@@ -0,0 +1,25 @@
+From 66d5b37cc6d32291419bf99161e83e2946ea5f25 Mon Sep 17 00:00:00 2001
+From: Daniel Hellstrom <daniel@gaisler.com>
+Date: Wed, 1 Dec 2010 12:11:03 +0100
+Subject: [PATCH] GRETH: added option to disable a device node from bootloader.
+
+Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
+---
+ drivers/net/greth.c |    6 ++++++
+ 1 files changed, 6 insertions(+), 0 deletions(-)
+
+--- a/drivers/net/greth.c
++++ b/drivers/net/greth.c
+@@ -1428,6 +1428,12 @@ static int __devinit greth_of_probe(stru
+ 	int err;
+ 	int tmp;
+ 	unsigned long timeout;
++	int *ampopts;
++
++	/* Skip device if used by another OS instance */
++	ampopts = (int *) of_get_property(ofdev->dev.of_node, "ampopts", NULL);
++	if (ampopts && (*ampopts == 0))
++		return -EIO;
+ 
+ 	dev = alloc_etherdev(sizeof(struct greth_private));
+