Add SMSC95XX support including MAC address control

878 lines not on this page · raw message

index 68a0883..7b55da3 100644
@@ -45,6 +45,13 @@ static const struct usb_eth_prob_dev prob_dev[] = {
 		.get_info = asix_eth_get_info,
 	},
 #endif
+#ifdef CONFIG_USB_ETHER_SMSC95XX
+	{
+		.before_probe = smsc95xx_eth_before_probe,
+		.probe = smsc95xx_eth_probe,
+		.get_info = smsc95xx_eth_get_info,
+	},
+#endif
 	{ },		/* END */
 };
 

index 825c275..a7fb26b 100644
@@ -51,6 +51,11 @@ struct ueth_data {
 	unsigned char	irqinterval;	/* Intervall for IRQ Pipe */
 
 	/* private fields for each driver can go here if needed */
+#ifdef CONFIG_USB_ETHER_SMSC95XX
+	size_t rx_urb_size;  /* maximum USB URB size */
+	u32 mac_cr;  /* MAC control register value */
+	int have_hwaddr;  /* 1 if we have a hardware MAC address */
+#endif
 };
 
 /*

@@ -65,4 +70,12 @@ int asix_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
 		      struct eth_device *eth);
 #endif
 
+#ifdef CONFIG_USB_ETHER_SMSC95XX
+void smsc95xx_eth_before_probe(void);
+int smsc95xx_eth_probe(struct usb_device *dev, unsigned int ifnum,
+			struct ueth_data *ss);
+int smsc95xx_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
+			struct eth_device *eth);
+#endif
+
 #endif /* __USB_ETHER_H__ */

index 2bfdf23..53d6aa1 100644
@@ -101,7 +101,7 @@ void davinci_sync_env_enetaddr(uint8_t *rom_enetaddr)
 {
 	uint8_t env_enetaddr[6];
 
-	eth_getenv_enetaddr_by_index(0, env_enetaddr);
+	eth_getenv_enetaddr_by_index("eth", 0, env_enetaddr);
 	if (!memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
 		/* There is no MAC address in the environment, so we initialize
 		 * it from the value in the EEPROM. */

index 3f5eeb7..02ba393 100644
@@ -500,7 +500,7 @@ int designware_initialize(u32 id, ulong base_addr, u32 phy_addr)
 	dev->iobase = (int)base_addr;
 	dev->priv = priv;
 
-	eth_getenv_enetaddr_by_index(id, &dev->enetaddr[0]);
+	eth_getenv_enetaddr_by_index("eth", id, &dev->enetaddr[0]);
 
 	priv->dev = dev;
 	priv->mac_regs_p = (struct eth_mac_regs *)base_addr;

index 7b55da3..6565ea5 100644
@@ -80,6 +80,7 @@ int is_eth_dev_on_usb_host(void)
  */
 static void probe_valid_drivers(struct usb_device *dev)
 {
+	struct eth_device *eth;
 	int j;
 
 	for (j = 0; prob_dev[j].probe && prob_dev[j].get_info; j++) {

@@ -88,9 +89,10 @@ static void probe_valid_drivers(struct usb_device *dev)
 		/*
 		 * ok, it is a supported eth device. Get info and fill it in
 		 */
+		eth = &usb_eth[usb_max_eth_dev].eth_dev;
 		if (prob_dev[j].get_info(dev,
 			&usb_eth[usb_max_eth_dev],
-			&usb_eth[usb_max_eth_dev].eth_dev)) {
+			eth)) {
 			/* found proper driver */
 			/* register with networking stack */
 			usb_max_eth_dev++;

@@ -100,7 +102,10 @@ static void probe_valid_drivers(struct usb_device *dev)
 			 * call since eth_current_changed (internally called)
 			 * relies on it
 			 */
-			eth_register(&usb_eth[usb_max_eth_dev - 1].eth_dev);
+			eth_register(eth);
+			if (eth_write_hwaddr(eth, "usbeth",
+					usb_max_eth_dev - 1))
+				puts("Warning: failed to set MAC address\n");
 			break;
 			}
 		}

index 018a744..ce54825 100644
@@ -128,7 +128,18 @@ extern int eth_get_dev_index (void);		/* get the device index */
 extern void eth_parse_enetaddr(const char *addr, uchar *enetaddr);
 extern int eth_getenv_enetaddr(char *name, uchar *enetaddr);
 extern int eth_setenv_enetaddr(char *name, const uchar *enetaddr);
-extern int eth_getenv_enetaddr_by_index(int index, uchar *enetaddr);
+
+/*
+ * Get the hardware address for an ethernet interface .
+ * Args:
+ *	base_name - base name for device (normally "eth")
+ *	index - device index number (0 for first)
+ *	enetaddr - returns 6 byte hardware address
+ * Returns:
+ *	Return true if the address is valid.
+ */
+extern int eth_getenv_enetaddr_by_index(const char *base_name, int index,
+					uchar *enetaddr);
 
 extern int usb_eth_initialize(bd_t *bi);
 extern int eth_init(bd_t *bis);			/* Initialize the device */

@@ -141,6 +152,18 @@ extern int eth_rx(void);			/* Check for received packets */
 extern void eth_halt(void);			/* stop SCC */
 extern char *eth_get_name(void);		/* get name of current device */
 
+/*
+ * Set the hardware address for an ethernet interface based on 'eth%daddr'
+ * environment variable (or just 'ethaddr' if eth_number is 0).
+ * Args:
+ *	base_name - base name for device (normally "eth")
+ *	eth_number - value of %d (0 for first device of this type)
+ * Returns:
+ *	0 is success, non-zero is error status from driver.
+ */
+int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
+		     int eth_number);
+
 #ifdef CONFIG_MCAST_TFTP
 int eth_mcast_join( IPaddr_t mcast_addr, u8 join);
 u32 ether_crc (size_t len, unsigned char const *p);

96 lines not on this page · raw message

index 4db63cb..4774624 100644
@@ -138,6 +138,35 @@ static int truncate_sz (const char *name, int maxlen, int curlen)
 	return (curlen);
 }
 
+/*
+ * Check if autoload is enabled. If so, use either NFS or TFTP to download
+ * the boot file.
+ */
+static void auto_load(void)
+{
+	const char *s = getenv("autoload");
+
+	if (s != NULL) {
+		if (*s == 'n') {
+			/*
+			 * Just use BOOTP to configure system;
+			 * Do not use TFTP to load the bootfile.
+			 */
+			NetState = NETLOOP_SUCCESS;
+			return;
+		}
+#if defined(CONFIG_CMD_NFS)
+		if (strcmp(s, "NFS") == 0) {
+			/*
+			 * Use NFS to load the bootfile.
+			 */
+			NfsStart();
+			return;
+		}
+#endif
+	TftpStart();
+}
+
 #if !defined(CONFIG_CMD_DHCP)
 
 static void BootpVendorFieldProcess (u8 * ext)

@@ -279,6 +308,7 @@ static void BootpVendorProcess (u8 * ext, int size)
 	if (NetBootFileSize)
 		debug("NetBootFileSize: %d\n", NetBootFileSize);
 }
+
 /*
  *	Handle a BOOTP received packet.
  */

@@ -287,7 +317,6 @@ BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
 	     unsigned len)
 {
 	Bootp_t *bp;
-	char	*s;
 
 	debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n",
 		src, dest, len, sizeof (Bootp_t));

@@ -314,26 +343,7 @@ BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
 
 	debug("Got good BOOTP\n");
 
-	if ((s = getenv("autoload")) != NULL) {
-		if (*s == 'n') {
-			/*
-			 * Just use BOOTP to configure system;
-			 * Do not use TFTP to load the bootfile.
-			 */
-			NetState = NETLOOP_SUCCESS;
-			return;
-#if defined(CONFIG_CMD_NFS)
-		} else if (strcmp(s, "NFS") == 0) {
-			/*
-			 * Use NFS to load the bootfile.
-			 */
-			NfsStart();
-			return;
-#endif
-		}
-	}
-
-	TftpStart();
+	auto_load();
 }
 #endif
 

@@ -907,34 +917,13 @@ DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
 		debug("DHCP State: REQUESTING\n");
 
 		if ( DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK ) {
-			char *s;
-
 			if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
 				DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp);
 			BootpCopyNetParams(bp); /* Store net params from reply */
 			dhcp_state = BOUND;
 			printf ("DHCP client bound to address %pI4\n", &NetOurIP);
 
-			/* Obey the 'autoload' setting */
-			if ((s = getenv("autoload")) != NULL) {
-				if (*s == 'n') {
-					/*
-					 * Just use BOOTP to configure system;
-					 * Do not use TFTP to load the bootfile.
-					 */
-					NetState = NETLOOP_SUCCESS;
-					return;
-#if defined(CONFIG_CMD_NFS)
-				} else if (strcmp(s, "NFS") == 0) {
-					/*
-					 * Use NFS to load the bootfile.
-					 */
-					NfsStart();
-					return;
-#endif
-				}
-			}
-			TftpStart();
+			auto_load();
 			return;
 		}
 		break;

index 9b012e4..18e5457 100644
@@ -307,20 +307,12 @@ static int mii_nway_restart(struct ueth_data *dev)
 	return r;
 }
 
-/*
- * Asix callbacks
- */
-static int asix_init(struct eth_device *eth, bd_t *bd)
+static int full_init(struct eth_device *eth)
 {
+	struct ueth_data *dev = (struct ueth_data *)eth->priv;
 	int embd_phy;
 	unsigned char buf[ETH_ALEN];
 	u16 rx_ctl;
-	struct ueth_data	*dev = (struct ueth_data *)eth->priv;
-	int timeout = 0;
-#define TIMEOUT_RESOLUTION 50	/* ms */
-	int link_detected;
-
-	debug("** %s()\n", __func__);
 
 	if (asix_write_gpio(dev,
 			AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5) < 0)

@@ -395,6 +387,25 @@ static int asix_init(struct eth_device *eth, bd_t *bd)
 
 	if (asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL) < 0)
 		goto out_err;
+	return 0;
+out_err:
+	return -1;
+}
+
+/*
+ * Asix callbacks
+ */
+static int asix_init(struct eth_device *eth, bd_t *bd)
+{
+	struct ueth_data *dev = (struct ueth_data *)eth->priv;
+	int timeout = 0;
+#define TIMEOUT_RESOLUTION 50	/* ms */
+	int link_detected;
+
+	debug("** %s()\n", __func__);
+
+	if (!dev->has_been_running && full_init(eth))
+		return -1;
 
 	do {
 		link_detected = asix_mdio_read(dev, dev->phy_id, MII_BMSR) &

@@ -411,12 +422,11 @@ static int asix_init(struct eth_device *eth, bd_t *bd)
 			printf("done.\n");
 	} else {
 		printf("unable to connect.\n");
-		goto out_err;
+		return -1;
 	}
 
+	dev->has_been_running = 1;
 	return 0;
-out_err:
-	return -1;
 }
 
 static int asix_send(struct eth_device *eth, volatile void *packet, int length)

index a7fb26b..73b085d 100644
@@ -37,8 +37,9 @@
 
 struct ueth_data {
 	/* eth info */
-	struct eth_device eth_dev;		/* used with eth_register */
-	int phy_id;						/* mii phy id */
+	struct eth_device eth_dev;	/* used with eth_register */
+	int phy_id;			/* mii phy id */
+	int has_been_running;		/* 1 if we have had a link up */
 
 	/* usb info */
 	struct usb_device *pusb_dev;	/* this usb_device */