From f605479de2deb11e834f31dfdb0af107c86aced6 Mon Sep 17 00:00:00 2001 From: Tsi-Chung Liew Date: Mon, 17 Mar 2008 17:08:16 -0500 Subject: [PATCH] ColdFire: Fix FEC transmit issue for MCF5275 Signed-off-by: TsiChung Liew Signed-off-by: Ben Warren --- drivers/net/mcffec.c | 7 +++++++ 1 file changed, 7 insertions(+) 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 -- 2.39.5