2 * Copyright (c) 2015 Google, Inc
3 * Copyright (c) 2011 The Chromium OS Authors.
4 * Copyright (C) 2009 NVIDIA, Corporation
5 * Copyright (C) 2007-2008 SMSC (Steve Glendinning)
7 * SPDX-License-Identifier: GPL-2.0+
16 #include <asm/unaligned.h>
17 #include <linux/mii.h>
18 #include "usb_ether.h"
20 /* SMSC LAN95xx based USB 2.0 Ethernet Devices */
23 #define LED_GPIO_CFG (0x24)
24 #define LED_GPIO_CFG_SPD_LED (0x01000000)
25 #define LED_GPIO_CFG_LNK_LED (0x00100000)
26 #define LED_GPIO_CFG_FDX_LED (0x00010000)
28 /* Tx command words */
29 #define TX_CMD_A_FIRST_SEG_ 0x00002000
30 #define TX_CMD_A_LAST_SEG_ 0x00001000
33 #define RX_STS_FL_ 0x3FFF0000 /* Frame Length */
34 #define RX_STS_ES_ 0x00008000 /* Error Summary */
42 #define TX_CFG_ON_ 0x00000004
45 #define HW_CFG_BIR_ 0x00001000
46 #define HW_CFG_RXDOFF_ 0x00000600
47 #define HW_CFG_MEF_ 0x00000020
48 #define HW_CFG_BCE_ 0x00000002
49 #define HW_CFG_LRST_ 0x00000008
52 #define PM_CTL_PHY_RST_ 0x00000010
57 * Hi watermark = 15.5Kb (~10 mtu pkts)
58 * low watermark = 3k (~2 mtu pkts)
59 * backpressure duration = ~ 350us
60 * Apply FC on any frame.
62 #define AFC_CFG_DEFAULT 0x00F830A1
65 #define E2P_CMD_BUSY_ 0x80000000
66 #define E2P_CMD_READ_ 0x00000000
67 #define E2P_CMD_TIMEOUT_ 0x00000400
68 #define E2P_CMD_LOADED_ 0x00000200
69 #define E2P_CMD_ADDR_ 0x000001FF
73 #define BURST_CAP 0x38
75 #define INT_EP_CTL 0x68
76 #define INT_EP_CTL_PHY_INT_ 0x00008000
78 #define BULK_IN_DLY 0x6C
82 #define MAC_CR_MCPAS_ 0x00080000
83 #define MAC_CR_PRMS_ 0x00040000
84 #define MAC_CR_HPFILT_ 0x00002000
85 #define MAC_CR_TXEN_ 0x00000008
86 #define MAC_CR_RXEN_ 0x00000004
92 #define MII_ADDR 0x114
93 #define MII_WRITE_ 0x02
94 #define MII_BUSY_ 0x01
95 #define MII_READ_ 0x00 /* ~of MII Write bit */
97 #define MII_DATA 0x118
104 #define Tx_COE_EN_ 0x00010000
105 #define Rx_COE_EN_ 0x00000001
107 /* Vendor-specific PHY Definitions */
108 #define PHY_INT_SRC 29
110 #define PHY_INT_MASK 30
111 #define PHY_INT_MASK_ANEG_COMP_ ((u16)0x0040)
112 #define PHY_INT_MASK_LINK_DOWN_ ((u16)0x0010)
113 #define PHY_INT_MASK_DEFAULT_ (PHY_INT_MASK_ANEG_COMP_ | \
114 PHY_INT_MASK_LINK_DOWN_)
116 /* USB Vendor Requests */
117 #define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0
118 #define USB_VENDOR_REQUEST_READ_REGISTER 0xA1
120 /* Some extra defines */
121 #define HS_USB_PKT_SIZE 512
122 #define FS_USB_PKT_SIZE 64
123 #define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE)
124 #define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE)
125 #define DEFAULT_BULK_IN_DELAY 0x00002000
126 #define MAX_SINGLE_PACKET_SIZE 2048
127 #define EEPROM_MAC_OFFSET 0x01
128 #define SMSC95XX_INTERNAL_PHY_ID 1
129 #define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */
132 #define SMSC95XX_BASE_NAME "sms"
133 #define USB_CTRL_SET_TIMEOUT 5000
134 #define USB_CTRL_GET_TIMEOUT 5000
135 #define USB_BULK_SEND_TIMEOUT 5000
136 #define USB_BULK_RECV_TIMEOUT 5000
138 #define RX_URB_SIZE 2048
139 #define PHY_CONNECT_TIMEOUT 5000
143 #ifndef CONFIG_DM_ETH
145 static int curr_eth_dev; /* index for name of next device detected */
149 struct smsc95xx_private {
151 struct ueth_data ueth;
153 size_t rx_urb_size; /* maximum USB URB size */
154 u32 mac_cr; /* MAC control register value */
155 int have_hwaddr; /* 1 if we have a hardware MAC address */
159 * Smsc95xx infrastructure commands
161 static int smsc95xx_write_reg(struct usb_device *udev, u32 index, u32 data)
164 ALLOC_CACHE_ALIGN_BUFFER(u32, tmpbuf, 1);
169 len = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
170 USB_VENDOR_REQUEST_WRITE_REGISTER,
171 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
172 0, index, tmpbuf, sizeof(data),
173 USB_CTRL_SET_TIMEOUT);
174 if (len != sizeof(data)) {
175 debug("smsc95xx_write_reg failed: index=%d, data=%d, len=%d",
182 static int smsc95xx_read_reg(struct usb_device *udev, u32 index, u32 *data)
185 ALLOC_CACHE_ALIGN_BUFFER(u32, tmpbuf, 1);
187 len = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
188 USB_VENDOR_REQUEST_READ_REGISTER,
189 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
190 0, index, tmpbuf, sizeof(data),
191 USB_CTRL_GET_TIMEOUT);
193 if (len != sizeof(data)) {
194 debug("smsc95xx_read_reg failed: index=%d, len=%d",
203 /* Loop until the read is completed with timeout */
204 static int smsc95xx_phy_wait_not_busy(struct usb_device *udev)
206 unsigned long start_time = get_timer(0);
210 smsc95xx_read_reg(udev, MII_ADDR, &val);
211 if (!(val & MII_BUSY_))
213 } while (get_timer(start_time) < 1000);
218 static int smsc95xx_mdio_read(struct usb_device *udev, int phy_id, int idx)
222 /* confirm MII not busy */
223 if (smsc95xx_phy_wait_not_busy(udev)) {
224 debug("MII is busy in smsc95xx_mdio_read\n");
228 /* set the address, index & direction (read from PHY) */
229 addr = (phy_id << 11) | (idx << 6) | MII_READ_;
230 smsc95xx_write_reg(udev, MII_ADDR, addr);
232 if (smsc95xx_phy_wait_not_busy(udev)) {
233 debug("Timed out reading MII reg %02X\n", idx);
237 smsc95xx_read_reg(udev, MII_DATA, &val);
239 return (u16)(val & 0xFFFF);
242 static void smsc95xx_mdio_write(struct usb_device *udev, int phy_id, int idx,
247 /* confirm MII not busy */
248 if (smsc95xx_phy_wait_not_busy(udev)) {
249 debug("MII is busy in smsc95xx_mdio_write\n");
254 smsc95xx_write_reg(udev, MII_DATA, val);
256 /* set the address, index & direction (write to PHY) */
257 addr = (phy_id << 11) | (idx << 6) | MII_WRITE_;
258 smsc95xx_write_reg(udev, MII_ADDR, addr);
260 if (smsc95xx_phy_wait_not_busy(udev))
261 debug("Timed out writing MII reg %02X\n", idx);
264 static int smsc95xx_eeprom_confirm_not_busy(struct usb_device *udev)
266 unsigned long start_time = get_timer(0);
270 smsc95xx_read_reg(udev, E2P_CMD, &val);
271 if (!(val & E2P_CMD_BUSY_))
274 } while (get_timer(start_time) < 1 * 1000 * 1000);
276 debug("EEPROM is busy\n");
280 static int smsc95xx_wait_eeprom(struct usb_device *udev)
282 unsigned long start_time = get_timer(0);
286 smsc95xx_read_reg(udev, E2P_CMD, &val);
287 if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_))
290 } while (get_timer(start_time) < 1 * 1000 * 1000);
292 if (val & (E2P_CMD_TIMEOUT_ | E2P_CMD_BUSY_)) {
293 debug("EEPROM read operation timeout\n");
299 static int smsc95xx_read_eeprom(struct usb_device *udev, u32 offset, u32 length,
305 ret = smsc95xx_eeprom_confirm_not_busy(udev);
309 for (i = 0; i < length; i++) {
310 val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_);
311 smsc95xx_write_reg(udev, E2P_CMD, val);
313 ret = smsc95xx_wait_eeprom(udev);
317 smsc95xx_read_reg(udev, E2P_DATA, &val);
318 data[i] = val & 0xFF;
325 * mii_nway_restart - restart NWay (autonegotiation) for this interface
327 * Returns 0 on success, negative on error.
329 static int mii_nway_restart(struct usb_device *udev, struct ueth_data *dev)
334 /* if autoneg is off, it's an error */
335 bmcr = smsc95xx_mdio_read(udev, dev->phy_id, MII_BMCR);
337 if (bmcr & BMCR_ANENABLE) {
338 bmcr |= BMCR_ANRESTART;
339 smsc95xx_mdio_write(udev, dev->phy_id, MII_BMCR, bmcr);
345 static int smsc95xx_phy_initialize(struct usb_device *udev,
346 struct ueth_data *dev)
348 smsc95xx_mdio_write(udev, dev->phy_id, MII_BMCR, BMCR_RESET);
349 smsc95xx_mdio_write(udev, dev->phy_id, MII_ADVERTISE,
350 ADVERTISE_ALL | ADVERTISE_CSMA |
351 ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
354 smsc95xx_mdio_read(udev, dev->phy_id, PHY_INT_SRC);
356 smsc95xx_mdio_write(udev, dev->phy_id, PHY_INT_MASK,
357 PHY_INT_MASK_DEFAULT_);
358 mii_nway_restart(udev, dev);
360 debug("phy initialised succesfully\n");
364 static int smsc95xx_init_mac_address(unsigned char *enetaddr,
365 struct usb_device *udev)
369 /* try reading mac address from EEPROM */
370 ret = smsc95xx_read_eeprom(udev, EEPROM_MAC_OFFSET, ETH_ALEN, enetaddr);
374 if (is_valid_ethaddr(enetaddr)) {
375 /* eeprom values are valid so use them */
376 debug("MAC address read from EEPROM\n");
381 * No eeprom, or eeprom values are invalid. Generating a random MAC
382 * address is not safe. Just return an error.
384 debug("Invalid MAC address read from EEPROM\n");
389 static int smsc95xx_write_hwaddr_common(struct usb_device *udev,
390 struct smsc95xx_private *priv,
391 unsigned char *enetaddr)
393 u32 addr_lo = __get_unaligned_le32(&enetaddr[0]);
394 u32 addr_hi = __get_unaligned_le16(&enetaddr[4]);
397 /* set hardware address */
398 debug("** %s()\n", __func__);
399 ret = smsc95xx_write_reg(udev, ADDRL, addr_lo);
403 ret = smsc95xx_write_reg(udev, ADDRH, addr_hi);
407 debug("MAC %pM\n", enetaddr);
408 priv->have_hwaddr = 1;
413 /* Enable or disable Tx & Rx checksum offload engines */
414 static int smsc95xx_set_csums(struct usb_device *udev, int use_tx_csum,
418 int ret = smsc95xx_read_reg(udev, COE_CR, &read_buf);
423 read_buf |= Tx_COE_EN_;
425 read_buf &= ~Tx_COE_EN_;
428 read_buf |= Rx_COE_EN_;
430 read_buf &= ~Rx_COE_EN_;
432 ret = smsc95xx_write_reg(udev, COE_CR, read_buf);
436 debug("COE_CR = 0x%08x\n", read_buf);
440 static void smsc95xx_set_multicast(struct smsc95xx_private *priv)
442 /* No multicast in u-boot */
443 priv->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
446 /* starts the TX path */
447 static void smsc95xx_start_tx_path(struct usb_device *udev,
448 struct smsc95xx_private *priv)
452 /* Enable Tx at MAC */
453 priv->mac_cr |= MAC_CR_TXEN_;
455 smsc95xx_write_reg(udev, MAC_CR, priv->mac_cr);
457 /* Enable Tx at SCSRs */
458 reg_val = TX_CFG_ON_;
459 smsc95xx_write_reg(udev, TX_CFG, reg_val);
462 /* Starts the Receive path */
463 static void smsc95xx_start_rx_path(struct usb_device *udev,
464 struct smsc95xx_private *priv)
466 priv->mac_cr |= MAC_CR_RXEN_;
467 smsc95xx_write_reg(udev, MAC_CR, priv->mac_cr);
470 static int smsc95xx_init_common(struct usb_device *udev, struct ueth_data *dev,
471 struct smsc95xx_private *priv,
472 unsigned char *enetaddr)
479 #define TIMEOUT_RESOLUTION 50 /* ms */
482 debug("** %s()\n", __func__);
483 dev->phy_id = SMSC95XX_INTERNAL_PHY_ID; /* fixed phy id */
485 write_buf = HW_CFG_LRST_;
486 ret = smsc95xx_write_reg(udev, HW_CFG, write_buf);
492 ret = smsc95xx_read_reg(udev, HW_CFG, &read_buf);
497 } while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
499 if (timeout >= 100) {
500 debug("timeout waiting for completion of Lite Reset\n");
504 write_buf = PM_CTL_PHY_RST_;
505 ret = smsc95xx_write_reg(udev, PM_CTRL, write_buf);
511 ret = smsc95xx_read_reg(udev, PM_CTRL, &read_buf);
516 } while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
517 if (timeout >= 100) {
518 debug("timeout waiting for PHY Reset\n");
521 if (!priv->have_hwaddr && smsc95xx_init_mac_address(enetaddr, udev) ==
523 priv->have_hwaddr = 1;
524 if (!priv->have_hwaddr) {
525 puts("Error: SMSC95xx: No MAC address set - set usbethaddr\n");
526 return -EADDRNOTAVAIL;
528 ret = smsc95xx_write_hwaddr_common(udev, priv, enetaddr);
532 ret = smsc95xx_read_reg(udev, HW_CFG, &read_buf);
535 debug("Read Value from HW_CFG : 0x%08x\n", read_buf);
537 read_buf |= HW_CFG_BIR_;
538 ret = smsc95xx_write_reg(udev, HW_CFG, read_buf);
542 ret = smsc95xx_read_reg(udev, HW_CFG, &read_buf);
545 debug("Read Value from HW_CFG after writing "
546 "HW_CFG_BIR_: 0x%08x\n", read_buf);
549 if (dev->pusb_dev->speed == USB_SPEED_HIGH) {
550 burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
551 priv->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
553 burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
554 priv->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
558 priv->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
560 debug("rx_urb_size=%ld\n", (ulong)priv->rx_urb_size);
562 ret = smsc95xx_write_reg(udev, BURST_CAP, burst_cap);
566 ret = smsc95xx_read_reg(udev, BURST_CAP, &read_buf);
569 debug("Read Value from BURST_CAP after writing: 0x%08x\n", read_buf);
571 read_buf = DEFAULT_BULK_IN_DELAY;
572 ret = smsc95xx_write_reg(udev, BULK_IN_DLY, read_buf);
576 ret = smsc95xx_read_reg(udev, BULK_IN_DLY, &read_buf);
579 debug("Read Value from BULK_IN_DLY after writing: "
580 "0x%08x\n", read_buf);
582 ret = smsc95xx_read_reg(udev, HW_CFG, &read_buf);
585 debug("Read Value from HW_CFG: 0x%08x\n", read_buf);
588 read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_);
590 read_buf &= ~HW_CFG_RXDOFF_;
592 #define NET_IP_ALIGN 0
593 read_buf |= NET_IP_ALIGN << 9;
595 ret = smsc95xx_write_reg(udev, HW_CFG, read_buf);
599 ret = smsc95xx_read_reg(udev, HW_CFG, &read_buf);
602 debug("Read Value from HW_CFG after writing: 0x%08x\n", read_buf);
604 write_buf = 0xFFFFFFFF;
605 ret = smsc95xx_write_reg(udev, INT_STS, write_buf);
609 ret = smsc95xx_read_reg(udev, ID_REV, &read_buf);
612 debug("ID_REV = 0x%08x\n", read_buf);
614 /* Configure GPIO pins as LED outputs */
615 write_buf = LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED |
616 LED_GPIO_CFG_FDX_LED;
617 ret = smsc95xx_write_reg(udev, LED_GPIO_CFG, write_buf);
620 debug("LED_GPIO_CFG set\n");
624 ret = smsc95xx_write_reg(udev, FLOW, write_buf);
628 read_buf = AFC_CFG_DEFAULT;
629 ret = smsc95xx_write_reg(udev, AFC_CFG, read_buf);
633 ret = smsc95xx_read_reg(udev, MAC_CR, &priv->mac_cr);
637 /* Init Rx. Set Vlan */
638 write_buf = (u32)ETH_P_8021Q;
639 ret = smsc95xx_write_reg(udev, VLAN1, write_buf);
643 /* Disable checksum offload engines */
644 ret = smsc95xx_set_csums(udev, 0, 0);
646 debug("Failed to set csum offload: %d\n", ret);
649 smsc95xx_set_multicast(priv);
651 ret = smsc95xx_phy_initialize(udev, dev);
654 ret = smsc95xx_read_reg(udev, INT_EP_CTL, &read_buf);
658 /* enable PHY interrupts */
659 read_buf |= INT_EP_CTL_PHY_INT_;
661 ret = smsc95xx_write_reg(udev, INT_EP_CTL, read_buf);
665 smsc95xx_start_tx_path(udev, priv);
666 smsc95xx_start_rx_path(udev, priv);
670 link_detected = smsc95xx_mdio_read(udev, dev->phy_id, MII_BMSR)
672 if (!link_detected) {
674 printf("Waiting for Ethernet connection... ");
675 udelay(TIMEOUT_RESOLUTION * 1000);
676 timeout += TIMEOUT_RESOLUTION;
678 } while (!link_detected && timeout < PHY_CONNECT_TIMEOUT);
683 printf("unable to connect.\n");
689 static int smsc95xx_send_common(struct ueth_data *dev, void *packet, int length)
695 ALLOC_CACHE_ALIGN_BUFFER(unsigned char, msg,
696 PKTSIZE + sizeof(tx_cmd_a) + sizeof(tx_cmd_b));
698 debug("** %s(), len %d, buf %#x\n", __func__, length, (int)msg);
699 if (length > PKTSIZE)
702 tx_cmd_a = (u32)length | TX_CMD_A_FIRST_SEG_ | TX_CMD_A_LAST_SEG_;
703 tx_cmd_b = (u32)length;
704 cpu_to_le32s(&tx_cmd_a);
705 cpu_to_le32s(&tx_cmd_b);
707 /* prepend cmd_a and cmd_b */
708 memcpy(msg, &tx_cmd_a, sizeof(tx_cmd_a));
709 memcpy(msg + sizeof(tx_cmd_a), &tx_cmd_b, sizeof(tx_cmd_b));
710 memcpy(msg + sizeof(tx_cmd_a) + sizeof(tx_cmd_b), (void *)packet,
712 err = usb_bulk_msg(dev->pusb_dev,
713 usb_sndbulkpipe(dev->pusb_dev, dev->ep_out),
715 length + sizeof(tx_cmd_a) + sizeof(tx_cmd_b),
717 USB_BULK_SEND_TIMEOUT);
718 debug("Tx: len = %u, actual = %u, err = %d\n",
719 length + sizeof(tx_cmd_a) + sizeof(tx_cmd_b),
725 #ifndef CONFIG_DM_ETH
729 static int smsc95xx_init(struct eth_device *eth, bd_t *bd)
731 struct ueth_data *dev = (struct ueth_data *)eth->priv;
732 struct usb_device *udev = dev->pusb_dev;
733 struct smsc95xx_private *priv =
734 (struct smsc95xx_private *)dev->dev_priv;
736 return smsc95xx_init_common(udev, dev, priv, eth->enetaddr);
739 static int smsc95xx_send(struct eth_device *eth, void *packet, int length)
741 struct ueth_data *dev = (struct ueth_data *)eth->priv;
743 return smsc95xx_send_common(dev, packet, length);
746 static int smsc95xx_recv(struct eth_device *eth)
748 struct ueth_data *dev = (struct ueth_data *)eth->priv;
749 DEFINE_CACHE_ALIGN_BUFFER(unsigned char, recv_buf, RX_URB_SIZE);
750 unsigned char *buf_ptr;
756 debug("** %s()\n", __func__);
757 err = usb_bulk_msg(dev->pusb_dev,
758 usb_rcvbulkpipe(dev->pusb_dev, dev->ep_in),
759 (void *)recv_buf, RX_URB_SIZE, &actual_len,
760 USB_BULK_RECV_TIMEOUT);
761 debug("Rx: len = %u, actual = %u, err = %d\n", RX_URB_SIZE,
764 debug("Rx: failed to receive\n");
767 if (actual_len > RX_URB_SIZE) {
768 debug("Rx: received too many bytes %d\n", actual_len);
773 while (actual_len > 0) {
775 * 1st 4 bytes contain the length of the actual data plus error
776 * info. Extract data length.
778 if (actual_len < sizeof(packet_len)) {
779 debug("Rx: incomplete packet length\n");
782 memcpy(&packet_len, buf_ptr, sizeof(packet_len));
783 le32_to_cpus(&packet_len);
784 if (packet_len & RX_STS_ES_) {
785 debug("Rx: Error header=%#x", packet_len);
788 packet_len = ((packet_len & RX_STS_FL_) >> 16);
790 if (packet_len > actual_len - sizeof(packet_len)) {
791 debug("Rx: too large packet: %d\n", packet_len);
795 /* Notify net stack */
796 net_process_received_packet(buf_ptr + sizeof(packet_len),
799 /* Adjust for next iteration */
800 actual_len -= sizeof(packet_len) + packet_len;
801 buf_ptr += sizeof(packet_len) + packet_len;
802 cur_buf_align = (int)buf_ptr - (int)recv_buf;
804 if (cur_buf_align & 0x03) {
805 int align = 4 - (cur_buf_align & 0x03);
814 static void smsc95xx_halt(struct eth_device *eth)
816 debug("** %s()\n", __func__);
819 static int smsc95xx_write_hwaddr(struct eth_device *eth)
821 struct ueth_data *dev = eth->priv;
822 struct usb_device *udev = dev->pusb_dev;
823 struct smsc95xx_private *priv = dev->dev_priv;
825 return smsc95xx_write_hwaddr_common(udev, priv, eth->enetaddr);
829 * SMSC probing functions
831 void smsc95xx_eth_before_probe(void)
836 struct smsc95xx_dongle {
837 unsigned short vendor;
838 unsigned short product;
841 static const struct smsc95xx_dongle smsc95xx_dongles[] = {
842 { 0x0424, 0xec00 }, /* LAN9512/LAN9514 Ethernet */
843 { 0x0424, 0x9500 }, /* LAN9500 Ethernet */
844 { 0x0424, 0x9730 }, /* LAN9730 Ethernet (HSIC) */
845 { 0x0424, 0x9900 }, /* SMSC9500 USB Ethernet Device (SAL10) */
846 { 0x0424, 0x9e00 }, /* LAN9500A Ethernet */
847 { 0x0000, 0x0000 } /* END - Do not remove */
850 /* Probe to see if a new device is actually an SMSC device */
851 int smsc95xx_eth_probe(struct usb_device *dev, unsigned int ifnum,
852 struct ueth_data *ss)
854 struct usb_interface *iface;
855 struct usb_interface_descriptor *iface_desc;
858 /* let's examine the device now */
859 iface = &dev->config.if_desc[ifnum];
860 iface_desc = &dev->config.if_desc[ifnum].desc;
862 for (i = 0; smsc95xx_dongles[i].vendor != 0; i++) {
863 if (dev->descriptor.idVendor == smsc95xx_dongles[i].vendor &&
864 dev->descriptor.idProduct == smsc95xx_dongles[i].product)
865 /* Found a supported dongle */
868 if (smsc95xx_dongles[i].vendor == 0)
871 /* At this point, we know we've got a live one */
872 debug("\n\nUSB Ethernet device detected\n");
873 memset(ss, '\0', sizeof(struct ueth_data));
875 /* Initialize the ueth_data structure with some useful info */
878 ss->subclass = iface_desc->bInterfaceSubClass;
879 ss->protocol = iface_desc->bInterfaceProtocol;
882 * We are expecting a minimum of 3 endpoints - in, out (bulk), and int.
883 * We will ignore any others.
885 for (i = 0; i < iface_desc->bNumEndpoints; i++) {
886 /* is it an BULK endpoint? */
887 if ((iface->ep_desc[i].bmAttributes &
888 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) {
889 if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN)
891 iface->ep_desc[i].bEndpointAddress &
892 USB_ENDPOINT_NUMBER_MASK;
895 iface->ep_desc[i].bEndpointAddress &
896 USB_ENDPOINT_NUMBER_MASK;
899 /* is it an interrupt endpoint? */
900 if ((iface->ep_desc[i].bmAttributes &
901 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) {
902 ss->ep_int = iface->ep_desc[i].bEndpointAddress &
903 USB_ENDPOINT_NUMBER_MASK;
904 ss->irqinterval = iface->ep_desc[i].bInterval;
907 debug("Endpoints In %d Out %d Int %d\n",
908 ss->ep_in, ss->ep_out, ss->ep_int);
910 /* Do some basic sanity checks, and bail if we find a problem */
911 if (usb_set_interface(dev, iface_desc->bInterfaceNumber, 0) ||
912 !ss->ep_in || !ss->ep_out || !ss->ep_int) {
913 debug("Problems with device\n");
916 dev->privptr = (void *)ss;
918 /* alloc driver private */
919 ss->dev_priv = calloc(1, sizeof(struct smsc95xx_private));
926 int smsc95xx_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
927 struct eth_device *eth)
929 debug("** %s()\n", __func__);
931 debug("%s: missing parameter.\n", __func__);
934 sprintf(eth->name, "%s%d", SMSC95XX_BASE_NAME, curr_eth_dev++);
935 eth->init = smsc95xx_init;
936 eth->send = smsc95xx_send;
937 eth->recv = smsc95xx_recv;
938 eth->halt = smsc95xx_halt;
939 eth->write_hwaddr = smsc95xx_write_hwaddr;
943 #endif /* !CONFIG_DM_ETH */
946 static int smsc95xx_eth_start(struct udevice *dev)
948 struct usb_device *udev = dev_get_parentdata(dev);
949 struct smsc95xx_private *priv = dev_get_priv(dev);
950 struct eth_pdata *pdata = dev_get_platdata(dev);
952 /* Driver-model Ethernet ensures we have this */
953 priv->have_hwaddr = 1;
955 return smsc95xx_init_common(udev, &priv->ueth, priv, pdata->enetaddr);
958 void smsc95xx_eth_stop(struct udevice *dev)
960 debug("** %s()\n", __func__);
963 int smsc95xx_eth_send(struct udevice *dev, void *packet, int length)
965 struct smsc95xx_private *priv = dev_get_priv(dev);
967 return smsc95xx_send_common(&priv->ueth, packet, length);
970 int smsc95xx_eth_recv(struct udevice *dev, int flags, uchar **packetp)
972 struct smsc95xx_private *priv = dev_get_priv(dev);
973 struct ueth_data *ueth = &priv->ueth;
978 len = usb_ether_get_rx_bytes(ueth, &ptr);
979 debug("%s: first try, len=%d\n", __func__, len);
981 if (!(flags & ETH_RECV_CHECK_DEVICE))
983 ret = usb_ether_receive(ueth, RX_URB_SIZE);
987 len = usb_ether_get_rx_bytes(ueth, &ptr);
988 debug("%s: second try, len=%d\n", __func__, len);
992 * 1st 4 bytes contain the length of the actual data plus error info.
993 * Extract data length.
995 if (len < sizeof(packet_len)) {
996 debug("Rx: incomplete packet length\n");
999 memcpy(&packet_len, ptr, sizeof(packet_len));
1000 le32_to_cpus(&packet_len);
1001 if (packet_len & RX_STS_ES_) {
1002 debug("Rx: Error header=%#x", packet_len);
1005 packet_len = ((packet_len & RX_STS_FL_) >> 16);
1007 if (packet_len > len - sizeof(packet_len)) {
1008 debug("Rx: too large packet: %d\n", packet_len);
1012 *packetp = ptr + sizeof(packet_len);
1016 usb_ether_advance_rxbuf(ueth, -1);
1020 static int smsc95xx_free_pkt(struct udevice *dev, uchar *packet, int packet_len)
1022 struct smsc95xx_private *priv = dev_get_priv(dev);
1024 packet_len = ALIGN(packet_len, 4);
1025 usb_ether_advance_rxbuf(&priv->ueth, sizeof(u32) + packet_len);
1030 int smsc95xx_write_hwaddr(struct udevice *dev)
1032 struct usb_device *udev = dev_get_parentdata(dev);
1033 struct eth_pdata *pdata = dev_get_platdata(dev);
1034 struct smsc95xx_private *priv = dev_get_priv(dev);
1036 return smsc95xx_write_hwaddr_common(udev, priv, pdata->enetaddr);
1039 static int smsc95xx_eth_probe(struct udevice *dev)
1041 struct smsc95xx_private *priv = dev_get_priv(dev);
1042 struct ueth_data *ueth = &priv->ueth;
1044 return usb_ether_register(dev, ueth, RX_URB_SIZE);
1047 static const struct eth_ops smsc95xx_eth_ops = {
1048 .start = smsc95xx_eth_start,
1049 .send = smsc95xx_eth_send,
1050 .recv = smsc95xx_eth_recv,
1051 .free_pkt = smsc95xx_free_pkt,
1052 .stop = smsc95xx_eth_stop,
1053 .write_hwaddr = smsc95xx_write_hwaddr,
1056 U_BOOT_DRIVER(smsc95xx_eth) = {
1057 .name = "smsc95xx_eth",
1059 .probe = smsc95xx_eth_probe,
1060 .ops = &smsc95xx_eth_ops,
1061 .priv_auto_alloc_size = sizeof(struct smsc95xx_private),
1062 .platdata_auto_alloc_size = sizeof(struct eth_pdata),
1065 static const struct usb_device_id smsc95xx_eth_id_table[] = {
1066 { USB_DEVICE(0x05ac, 0x1402) },
1067 { USB_DEVICE(0x0424, 0xec00) }, /* LAN9512/LAN9514 Ethernet */
1068 { USB_DEVICE(0x0424, 0x9500) }, /* LAN9500 Ethernet */
1069 { USB_DEVICE(0x0424, 0x9730) }, /* LAN9730 Ethernet (HSIC) */
1070 { USB_DEVICE(0x0424, 0x9900) }, /* SMSC9500 USB Ethernet (SAL10) */
1071 { USB_DEVICE(0x0424, 0x9e00) }, /* LAN9500A Ethernet */
1072 { } /* Terminating entry */
1075 U_BOOT_USB_DEVICE(smsc95xx_eth, smsc95xx_eth_id_table);