X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fdm9000x.c;h=6131b5c35708c107219310e52dfeae7df20f782a;hb=fd64975a882ca654f3139385791cdd237d6acc53;hp=0e475d47237e1f167acb42f1e01ee4895ef69b3b;hpb=281e00a3be453a169d854f824a460359d10f92bb;p=oweals%2Fu-boot.git

diff --git a/drivers/dm9000x.c b/drivers/dm9000x.c
index 0e475d4723..6131b5c357 100644
--- a/drivers/dm9000x.c
+++ b/drivers/dm9000x.c
@@ -99,7 +99,7 @@ void eth_halt(void);
 static int dm9000_probe(void);
 static u16 phy_read(int);
 static void phy_write(int, u16);
-static u16 read_srom_word(int);
+u16 read_srom_word(int);
 static u8 DM9000_ior(int);
 static void DM9000_iow(int reg, u8 value);
 
@@ -302,6 +302,21 @@ eth_init(bd_t * bd)
 	/* Set Node address */
 	for (i = 0; i < 6; i++)
 		((u16 *) bd->bi_enetaddr)[i] = read_srom_word(i);
+
+	if (is_zero_ether_addr(bd->bi_enetaddr) ||
+	    is_multicast_ether_addr(bd->bi_enetaddr)) {
+		/* try reading from environment */
+		u8 i;
+		char *s, *e;
+		s = getenv ("ethaddr");
+		for (i = 0; i < 6; ++i) {
+			bd->bi_enetaddr[i] = s ?
+				simple_strtoul (s, &e, 16) : 0;
+			if (s)
+				s = (*e) ? e + 1 : e;
+		}
+	}
+
 	printf("MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", bd->bi_enetaddr[0],
 	       bd->bi_enetaddr[1], bd->bi_enetaddr[2], bd->bi_enetaddr[3],
 	       bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
@@ -436,6 +451,9 @@ eth_rx(void)
 	u8 rxbyte, *rdptr = (u8 *) NetRxPackets[0];
 	u16 RxStatus, RxLen = 0;
 	u32 tmplen, i;
+#ifdef CONFIG_DM9000_USE_32BIT
+	u32 tmpdata;
+#endif
 
 	/* Check packet ready or not */
 	DM9000_ior(DM9000_MRCMDX);	/* Dummy read */
@@ -519,16 +537,28 @@ eth_rx(void)
 /*
   Read a word data from SROM
 */
-static u16
+u16
 read_srom_word(int offset)
 {
 	DM9000_iow(DM9000_EPAR, offset);
 	DM9000_iow(DM9000_EPCR, 0x4);
-	udelay(200);
+	udelay(8000);
 	DM9000_iow(DM9000_EPCR, 0x0);
 	return (DM9000_ior(DM9000_EPDRL) + (DM9000_ior(DM9000_EPDRH) << 8));
 }
 
+void
+write_srom_word(int offset, u16 val)
+{
+	DM9000_iow(DM9000_EPAR, offset);
+	DM9000_iow(DM9000_EPDRH, ((val >> 8) & 0xff));
+	DM9000_iow(DM9000_EPDRL, (val & 0xff));
+	DM9000_iow(DM9000_EPCR, 0x12);
+	udelay(8000);
+	DM9000_iow(DM9000_EPCR, 0);
+}
+
+
 /*
    Read a byte from I/O port
 */