Update MPC5200 FIFO Control settings
(u-boot.habanero.fifo_cntrl.patch from Freescale)
diff --git a/cpu/mpc5xxx/fec.c b/cpu/mpc5xxx/fec.c
index 2be4ca7..c3d30a0 100644
--- a/cpu/mpc5xxx/fec.c
+++ b/cpu/mpc5xxx/fec.c
@@ -291,7 +291,8 @@
/*
* Set Rx FIFO alarm and granularity value
*/
- fec->eth->rfifo_cntrl = 0x0c000000;
+ fec->eth->rfifo_cntrl = 0x0c000000
+ | (fec->eth->rfifo_cntrl & ~0x0f000000);
fec->eth->rfifo_alarm = 0x0000030c;
#if (DEBUG & 0x22)
if (fec->eth->rfifo_status & 0x00700000 ) {
@@ -302,7 +303,8 @@
/*
* Set Tx FIFO granularity value
*/
- fec->eth->tfifo_cntrl = 0x0c000000;
+ fec->eth->tfifo_cntrl = 0x0c000000
+ | (fec->eth->tfifo_cntrl & ~0x0f000000);
#if (DEBUG & 0x2)
printf("tfifo_status: 0x%08x\n", fec->eth->tfifo_status);
printf("tfifo_alarm: 0x%08x\n", fec->eth->tfifo_alarm);