commit 11bbdc66f1f7f73df5654ba9b05d5c2171febb02
author Daniel Hellstrom <daniel@gaisler.com> Fri Oct 22 11:34:01 2010 +0200
committer Daniel Hellstrom <daniel@gaisler.com> Thu Nov 18 08:33:25 2010 +0100
tree 418f92e8c2c3685161783b892403e2fc5b628440
parent 9ae3be87c0299264e0dbba2ad43941d433b6bb3f

GRETH: Added extra RESET, this is needed if GRETH was stopped during an ethernet frame reception.

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>

drivers/net/greth.c

diff --git a/drivers/net/greth.c b/drivers/net/greth.c
index cb68d45..f081855 100644
--- a/drivers/net/greth.c
+++ b/drivers/net/greth.c
@@ -152,6 +152,16 @@
 
 	debug("greth_init\n");
 
+	/* Reset core */
+	GRETH_REGSAVE(&regs->control, (GRETH_RESET | (greth->gb << 8) |
+		(greth->sp << 7) | (greth->fd << 4)));
+
+	/* Wait for Reset to complete */
+	while ( GRETH_REGLOAD(&regs->control) & GRETH_RESET) ;
+
+	GRETH_REGSAVE(&regs->control,
+		((greth->gb << 8) | (greth->sp << 7) | (greth->fd << 4)));
+
 	if (!greth->rxbd_base) {
 
 		/* allocate descriptors */