[U-Boot] [PATCH] MIPS: Implement ethernet halt for au1x00

[Thomas Lange <thomas@corelatus.se>]

Implement ethernet halt() by putting MAC0 in reset.
If we do not do this, we will get memory corruption
when ethernet frames are received during early OS boot.

Signed-off-by: Thomas Lange <thomas@corelatus.se>
---
 cpu/mips/au1x00_eth.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/cpu/mips/au1x00_eth.c b/cpu/mips/au1x00_eth.c
index 6272a3a..5074997 100644
--- a/cpu/mips/au1x00_eth.c
+++ b/cpu/mips/au1x00_eth.c
@@ -276,6 +276,10 @@ static int au1x00_init(struct eth_device* dev, bd_t * bd){
 }

 static void au1x00_halt(struct eth_device* dev){
+	volatile u32 *macen = (volatile u32*)MAC0_ENABLE;
+
+	/* Put MAC0 in reset */
+	*macen = 0;
 }

 int au1x00_enet_initialize(bd_t *bis){
-- 
1.5.6.5