From: Tsi-Chung Liew <Tsi-Chung.Liew@freescale.com>
Date: Mon, 17 Mar 2008 22:08:16 +0000 (-0500)
Subject: ColdFire: Fix FEC transmit issue for MCF5275
X-Git-Tag: v1.3.3-rc1~112^2~6
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=f605479de2deb11e834f31dfdb0af107c86aced6;p=u-boot

ColdFire: Fix FEC transmit issue for MCF5275

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
---

diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c
index 3b812585b7..71d19608ed 100644
--- a/drivers/net/mcffec.c
+++ b/drivers/net/mcffec.c
@@ -166,6 +166,13 @@ int fec_send(struct eth_device *dev, volatile void *packet, int length)
 	/* Activate transmit Buffer Descriptor polling */
 	fecp->tdar = 0x01000000;	/* Descriptor polling active    */
 
+	/* FEC fix for MCF5275, FEC unable to initial transmit data packet.
+	 * A nop will ensure the descriptor polling active completed.
+	 */
+#ifdef CONFIG_M5275
+	__asm__ ("nop");
+#endif
+
 #ifdef CFG_UNIFY_CACHE
 	icache_invalid();
 #endif