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ColdFire: Fix FEC transmit issue for MCF5275

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Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
This commit is contained in:
Tsi-Chung Liew 2008-03-17 17:08:16 -05:00 committed by Ben Warren
parent d9a2f416d6
commit f605479de2
1 changed files with 7 additions and 0 deletions
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7
drivers/net/mcffec.c
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@ -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