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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));
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