net: fec_mxc: don't write to reserved register on i.MX6UL

diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 61f2db834c3db2d55d0804b96332e8112b7881f9..ee6822af323df3dd2970cc2341ce9f23d37e33e7 100644 (file)
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -559,9 +559,11 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
        writel(0x00000000, &fec->eth->gaddr1);
        writel(0x00000000, &fec->eth->gaddr2);
 
+       /* Do not access reserved register for i.MX6UL */
+#ifndef CONFIG_SOC_MX6UL
        /* FIFO receive start register */
        writel(0x520, &fec->eth->r_fstart);
-
+#endif
        /* size and address of each buffer */
        writel(FEC_MAX_PKT_SIZE, &fec->eth->emrbr);
        writel((uint32_t)fec->tbd_base, &fec->eth->etdsr);