2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; version 2 of the License
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
15 * Copyright (C) 2009 John Crispin <blogic@openwrt.org>
18 #include <linux/module.h>
19 #include <linux/kernel.h>
20 #include <linux/types.h>
21 #include <linux/dma-mapping.h>
22 #include <linux/init.h>
23 #include <linux/skbuff.h>
24 #include <linux/etherdevice.h>
25 #include <linux/ethtool.h>
26 #include <linux/platform_device.h>
27 #include <linux/phy.h>
29 #include <ramips_eth_platform.h>
30 #include "ramips_eth.h"
32 #define TX_TIMEOUT (20 * HZ / 100)
33 #define MAX_RX_LENGTH 1600
35 #ifdef CONFIG_RALINK_RT305X
36 #include "ramips_esw.c"
38 static inline int rt305x_esw_init(void) { return 0; }
39 static inline void rt305x_esw_exit(void) { }
42 #define phys_to_bus(a) (a & 0x1FFFFFFF)
44 #ifdef CONFIG_RAMIPS_ETH_DEBUG
45 #define RADEBUG(fmt, args...) printk(KERN_DEBUG fmt, ## args)
47 #define RADEBUG(fmt, args...) do {} while (0)
50 static struct net_device * ramips_dev;
51 static void __iomem *ramips_fe_base = 0;
54 ramips_fe_wr(u32 val, unsigned reg)
56 __raw_writel(val, ramips_fe_base + reg);
60 ramips_fe_rr(unsigned reg)
62 return __raw_readl(ramips_fe_base + reg);
66 ramips_fe_int_disable(u32 mask)
68 ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) & ~mask,
69 RAMIPS_FE_INT_ENABLE);
71 ramips_fe_rr(RAMIPS_FE_INT_ENABLE);
75 ramips_fe_int_enable(u32 mask)
77 ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) | mask,
78 RAMIPS_FE_INT_ENABLE);
80 ramips_fe_rr(RAMIPS_FE_INT_ENABLE);
84 ramips_hw_set_macaddr(unsigned char *mac)
86 ramips_fe_wr((mac[0] << 8) | mac[1], RAMIPS_GDMA1_MAC_ADRH);
87 ramips_fe_wr((mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5],
88 RAMIPS_GDMA1_MAC_ADRL);
91 static struct sk_buff *
92 ramips_alloc_skb(struct raeth_priv *re)
96 skb = netdev_alloc_skb(re->netdev, MAX_RX_LENGTH + NET_IP_ALIGN);
100 skb_reserve(skb, NET_IP_ALIGN);
106 ramips_ring_setup(struct raeth_priv *re)
111 len = NUM_TX_DESC * sizeof(struct ramips_tx_dma);
112 memset(re->tx, 0, len);
114 for (i = 0; i < NUM_TX_DESC; i++) {
115 struct ramips_tx_dma *txd;
118 txd->txd4 = TX_DMA_QN(3) | TX_DMA_PN(1);
119 txd->txd2 = TX_DMA_LSO | TX_DMA_DONE;
121 if (re->tx_skb[i] != NULL) {
122 netdev_warn(re->netdev,
123 "dirty skb for TX desc %d\n", i);
124 re->tx_skb[i] = NULL;
128 len = NUM_RX_DESC * sizeof(struct ramips_rx_dma);
129 memset(re->rx, 0, len);
131 for (i = 0; i < NUM_RX_DESC; i++) {
134 BUG_ON(re->rx_skb[i] == NULL);
135 dma_addr = dma_map_single(&re->netdev->dev, re->rx_skb[i]->data,
136 MAX_RX_LENGTH, DMA_FROM_DEVICE);
137 re->rx_dma[i] = dma_addr;
138 re->rx[i].rxd1 = (unsigned int) dma_addr;
139 re->rx[i].rxd2 = RX_DMA_LSO;
142 /* flush descriptors */
147 ramips_ring_cleanup(struct raeth_priv *re)
151 for (i = 0; i < NUM_RX_DESC; i++)
153 dma_unmap_single(&re->netdev->dev, re->rx_dma[i],
154 MAX_RX_LENGTH, DMA_FROM_DEVICE);
156 for (i = 0; i < NUM_TX_DESC; i++)
158 dev_kfree_skb_any(re->tx_skb[i]);
159 re->tx_skb[i] = NULL;
163 #if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT3883)
165 #define RAMIPS_MDIO_RETRY 1000
167 static unsigned char *ramips_speed_str(struct raeth_priv *re)
181 static void ramips_link_adjust(struct raeth_priv *re)
183 struct ramips_eth_platform_data *pdata;
186 pdata = re->parent->platform_data;
188 netif_carrier_off(re->netdev);
189 netdev_info(re->netdev, "link down\n");
193 mdio_cfg = RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 |
194 RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 |
195 RAMIPS_MDIO_CFG_GP1_FRC_EN;
197 if (re->duplex == DUPLEX_FULL)
198 mdio_cfg |= RAMIPS_MDIO_CFG_GP1_DUPLEX;
201 mdio_cfg |= RAMIPS_MDIO_CFG_GP1_FC_TX;
204 mdio_cfg |= RAMIPS_MDIO_CFG_GP1_FC_RX;
208 mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_10;
211 mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_100;
214 mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_1000;
220 ramips_fe_wr(mdio_cfg, RAMIPS_MDIO_CFG);
222 netif_carrier_on(re->netdev);
223 netdev_info(re->netdev, "link up (%sMbps/%s duplex)\n",
224 ramips_speed_str(re),
225 (DUPLEX_FULL == re->duplex) ? "Full" : "Half");
229 ramips_mdio_wait_ready(struct raeth_priv *re)
233 retries = RAMIPS_MDIO_RETRY;
237 t = ramips_fe_rr(RAMIPS_MDIO_ACCESS);
238 if ((t & (0x1 << 31)) == 0)
247 dev_err(re->parent, "MDIO operation timed out\n");
252 ramips_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg)
254 struct raeth_priv *re = bus->priv;
258 err = ramips_mdio_wait_ready(re);
262 t = (phy_addr << 24) | (phy_reg << 16);
263 ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
265 ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
267 err = ramips_mdio_wait_ready(re);
271 RADEBUG("%s: addr=%04x, reg=%04x, value=%04x\n", __func__,
272 phy_addr, phy_reg, ramips_fe_rr(RAMIPS_MDIO_ACCESS) & 0xffff);
274 return ramips_fe_rr(RAMIPS_MDIO_ACCESS) & 0xffff;
278 ramips_mdio_write(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val)
280 struct raeth_priv *re = bus->priv;
284 RADEBUG("%s: addr=%04x, reg=%04x, value=%04x\n", __func__,
285 phy_addr, phy_reg, ramips_fe_rr(RAMIPS_MDIO_ACCESS) & 0xffff);
287 err = ramips_mdio_wait_ready(re);
291 t = (1 << 30) | (phy_addr << 24) | (phy_reg << 16) | val;
292 ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
294 ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
296 return ramips_mdio_wait_ready(re);
300 ramips_mdio_reset(struct mii_bus *bus)
307 ramips_mdio_init(struct raeth_priv *re)
312 re->mii_bus = mdiobus_alloc();
313 if (re->mii_bus == NULL)
316 re->mii_bus->name = "ramips_mdio";
317 re->mii_bus->read = ramips_mdio_read;
318 re->mii_bus->write = ramips_mdio_write;
319 re->mii_bus->reset = ramips_mdio_reset;
320 re->mii_bus->irq = re->mii_irq;
321 re->mii_bus->priv = re;
322 re->mii_bus->parent = re->parent;
324 snprintf(re->mii_bus->id, MII_BUS_ID_SIZE, "%s", "ramips_mdio");
325 re->mii_bus->phy_mask = 0;
327 for (i = 0; i < PHY_MAX_ADDR; i++)
328 re->mii_irq[i] = PHY_POLL;
330 err = mdiobus_register(re->mii_bus);
342 ramips_mdio_cleanup(struct raeth_priv *re)
344 mdiobus_unregister(re->mii_bus);
349 ramips_phy_link_adjust(struct net_device *dev)
351 struct raeth_priv *re = netdev_priv(dev);
352 struct phy_device *phydev = re->phy_dev;
354 int status_change = 0;
356 spin_lock_irqsave(&re->phy_lock, flags);
359 if (re->duplex != phydev->duplex ||
360 re->speed != phydev->speed)
363 if (phydev->link != re->link)
366 re->link = phydev->link;
367 re->duplex = phydev->duplex;
368 re->speed = phydev->speed;
371 ramips_link_adjust(re);
373 spin_unlock_irqrestore(&re->phy_lock, flags);
377 ramips_phy_connect_multi(struct raeth_priv *re)
379 struct net_device *netdev = re->netdev;
380 struct ramips_eth_platform_data *pdata;
381 struct phy_device *phydev = NULL;
385 pdata = re->parent->platform_data;
386 for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
387 if (!(pdata->phy_mask & (1 << phy_addr)))
390 if (re->mii_bus->phy_map[phy_addr] == NULL)
393 RADEBUG("%s: PHY found at %s, uid=%08x\n",
395 dev_name(&re->mii_bus->phy_map[phy_addr]->dev),
396 re->mii_bus->phy_map[phy_addr]->phy_id);
399 phydev = re->mii_bus->phy_map[phy_addr];
403 netdev_err(netdev, "no PHY found with phy_mask=%08x\n",
408 re->phy_dev = phy_connect(netdev, dev_name(&phydev->dev),
409 ramips_phy_link_adjust, 0,
412 if (IS_ERR(re->phy_dev)) {
413 netdev_err(netdev, "could not connect to PHY at %s\n",
414 dev_name(&phydev->dev));
415 return PTR_ERR(re->phy_dev);
418 phydev->supported &= PHY_GBIT_FEATURES;
419 phydev->advertising = phydev->supported;
421 RADEBUG("%s: connected to PHY at %s [uid=%08x, driver=%s]\n",
422 netdev->name, dev_name(&phydev->dev),
423 phydev->phy_id, phydev->drv->name);
435 ramips_phy_connect_fixed(struct raeth_priv *re)
437 struct ramips_eth_platform_data *pdata;
439 pdata = re->parent->platform_data;
440 switch (pdata->speed) {
446 netdev_err(re->netdev, "invalid speed specified\n");
450 RADEBUG("%s: using fixed link parameters\n", re->netdev->name);
452 re->speed = pdata->speed;
453 re->duplex = pdata->duplex;
454 re->tx_fc = pdata->tx_fc;
455 re->rx_fc = pdata->tx_fc;
461 ramips_phy_connect(struct raeth_priv *re)
463 struct ramips_eth_platform_data *pdata;
465 pdata = re->parent->platform_data;
467 return ramips_phy_connect_multi(re);
469 return ramips_phy_connect_fixed(re);
473 ramips_phy_disconnect(struct raeth_priv *re)
476 phy_disconnect(re->phy_dev);
480 ramips_phy_start(struct raeth_priv *re)
485 phy_start(re->phy_dev);
487 spin_lock_irqsave(&re->phy_lock, flags);
489 ramips_link_adjust(re);
490 spin_unlock_irqrestore(&re->phy_lock, flags);
495 ramips_phy_stop(struct raeth_priv *re)
500 phy_stop(re->phy_dev);
502 spin_lock_irqsave(&re->phy_lock, flags);
504 ramips_link_adjust(re);
505 spin_unlock_irqrestore(&re->phy_lock, flags);
509 ramips_mdio_init(struct raeth_priv *re)
515 ramips_mdio_cleanup(struct raeth_priv *re)
520 ramips_phy_connect(struct raeth_priv *re)
526 ramips_phy_disconnect(struct raeth_priv *re)
531 ramips_phy_start(struct raeth_priv *re)
536 ramips_phy_stop(struct raeth_priv *re)
539 #endif /* CONFIG_RALINK_RT288X || CONFIG_RALINK_RT3883 */
542 ramips_ring_free(struct raeth_priv *re)
547 for (i = 0; i < NUM_RX_DESC; i++)
549 dev_kfree_skb_any(re->rx_skb[i]);
552 len = NUM_RX_DESC * sizeof(struct ramips_rx_dma);
553 dma_free_coherent(&re->netdev->dev, len, re->rx,
558 len = NUM_TX_DESC * sizeof(struct ramips_tx_dma);
559 dma_free_coherent(&re->netdev->dev, len, re->tx,
565 ramips_ring_alloc(struct raeth_priv *re)
571 /* allocate tx ring */
572 len = NUM_TX_DESC * sizeof(struct ramips_tx_dma);
573 re->tx = dma_alloc_coherent(&re->netdev->dev, len,
574 &re->tx_desc_dma, GFP_ATOMIC);
578 /* allocate rx ring */
579 len = NUM_RX_DESC * sizeof(struct ramips_rx_dma);
580 re->rx = dma_alloc_coherent(&re->netdev->dev, len,
581 &re->rx_desc_dma, GFP_ATOMIC);
585 for (i = 0; i < NUM_RX_DESC; i++) {
588 skb = ramips_alloc_skb(re);
598 ramips_ring_free(re);
603 ramips_setup_dma(struct raeth_priv *re)
605 ramips_fe_wr(re->tx_desc_dma, RAMIPS_TX_BASE_PTR0);
606 ramips_fe_wr(NUM_TX_DESC, RAMIPS_TX_MAX_CNT0);
607 ramips_fe_wr(0, RAMIPS_TX_CTX_IDX0);
608 ramips_fe_wr(RAMIPS_PST_DTX_IDX0, RAMIPS_PDMA_RST_CFG);
610 ramips_fe_wr(re->rx_desc_dma, RAMIPS_RX_BASE_PTR0);
611 ramips_fe_wr(NUM_RX_DESC, RAMIPS_RX_MAX_CNT0);
612 ramips_fe_wr((NUM_RX_DESC - 1), RAMIPS_RX_CALC_IDX0);
613 ramips_fe_wr(RAMIPS_PST_DRX_IDX0, RAMIPS_PDMA_RST_CFG);
617 ramips_eth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
619 struct raeth_priv *re = netdev_priv(dev);
621 unsigned int tx_next;
622 dma_addr_t mapped_addr;
624 if (re->plat->min_pkt_len) {
625 if (skb->len < re->plat->min_pkt_len) {
626 if (skb_padto(skb, re->plat->min_pkt_len)) {
628 "ramips_eth: skb_padto failed\n");
632 skb_put(skb, re->plat->min_pkt_len - skb->len);
636 dev->trans_start = jiffies;
637 mapped_addr = dma_map_single(&re->netdev->dev, skb->data, skb->len,
640 spin_lock(&re->page_lock);
641 tx = ramips_fe_rr(RAMIPS_TX_CTX_IDX0);
642 tx_next = (tx + 1) % NUM_TX_DESC;
644 if ((re->tx_skb[tx]) || (re->tx_skb[tx_next]) ||
645 !(re->tx[tx].txd2 & TX_DMA_DONE) ||
646 !(re->tx[tx_next].txd2 & TX_DMA_DONE))
649 re->tx[tx].txd1 = (unsigned int) mapped_addr;
650 re->tx[tx].txd2 &= ~(TX_DMA_PLEN0_MASK | TX_DMA_DONE);
651 re->tx[tx].txd2 |= TX_DMA_PLEN0(skb->len);
652 dev->stats.tx_packets++;
653 dev->stats.tx_bytes += skb->len;
654 re->tx_skb[tx] = skb;
656 ramips_fe_wr(tx_next, RAMIPS_TX_CTX_IDX0);
657 spin_unlock(&re->page_lock);
661 spin_unlock(&re->page_lock);
662 dev->stats.tx_dropped++;
668 ramips_eth_rx_hw(unsigned long ptr)
670 struct net_device *dev = (struct net_device *) ptr;
671 struct raeth_priv *re = netdev_priv(dev);
676 struct sk_buff *rx_skb, *new_skb;
679 rx = (ramips_fe_rr(RAMIPS_RX_CALC_IDX0) + 1) % NUM_RX_DESC;
680 if (!(re->rx[rx].rxd2 & RX_DMA_DONE))
684 rx_skb = re->rx_skb[rx];
685 pktlen = RX_DMA_PLEN0(re->rx[rx].rxd2);
687 new_skb = ramips_alloc_skb(re);
688 /* Reuse the buffer on allocation failures */
692 dma_unmap_single(&re->netdev->dev, re->rx_dma[rx],
693 MAX_RX_LENGTH, DMA_FROM_DEVICE);
695 skb_put(rx_skb, pktlen);
697 rx_skb->protocol = eth_type_trans(rx_skb, dev);
698 rx_skb->ip_summed = CHECKSUM_NONE;
699 dev->stats.rx_packets++;
700 dev->stats.rx_bytes += pktlen;
703 re->rx_skb[rx] = new_skb;
705 dma_addr = dma_map_single(&re->netdev->dev,
709 re->rx_dma[rx] = dma_addr;
710 re->rx[rx].rxd1 = (unsigned int) dma_addr;
712 dev->stats.rx_dropped++;
715 re->rx[rx].rxd2 &= ~RX_DMA_DONE;
717 ramips_fe_wr(rx, RAMIPS_RX_CALC_IDX0);
721 tasklet_schedule(&re->rx_tasklet);
723 ramips_fe_int_enable(RAMIPS_RX_DLY_INT);
727 ramips_eth_tx_housekeeping(unsigned long ptr)
729 struct net_device *dev = (struct net_device*)ptr;
730 struct raeth_priv *re = netdev_priv(dev);
732 spin_lock(&re->page_lock);
733 while ((re->tx[re->skb_free_idx].txd2 & TX_DMA_DONE) &&
734 (re->tx_skb[re->skb_free_idx])) {
735 dev_kfree_skb_irq(re->tx_skb[re->skb_free_idx]);
736 re->tx_skb[re->skb_free_idx] = 0;
738 if (re->skb_free_idx >= NUM_TX_DESC)
739 re->skb_free_idx = 0;
741 spin_unlock(&re->page_lock);
743 ramips_fe_int_enable(RAMIPS_TX_DLY_INT);
747 ramips_eth_timeout(struct net_device *dev)
749 struct raeth_priv *re = netdev_priv(dev);
751 tasklet_schedule(&re->tx_housekeeping_tasklet);
755 ramips_eth_irq(int irq, void *dev)
757 struct raeth_priv *re = netdev_priv(dev);
758 unsigned long fe_int = ramips_fe_rr(RAMIPS_FE_INT_STATUS);
760 ramips_fe_wr(0xFFFFFFFF, RAMIPS_FE_INT_STATUS);
762 if (fe_int & RAMIPS_RX_DLY_INT) {
763 ramips_fe_int_disable(RAMIPS_RX_DLY_INT);
764 tasklet_schedule(&re->rx_tasklet);
767 if (fe_int & RAMIPS_TX_DLY_INT) {
768 ramips_fe_int_disable(RAMIPS_TX_DLY_INT);
769 tasklet_schedule(&re->tx_housekeeping_tasklet);
776 ramips_eth_open(struct net_device *dev)
778 struct raeth_priv *re = netdev_priv(dev);
781 err = request_irq(dev->irq, ramips_eth_irq, IRQF_DISABLED,
786 err = ramips_ring_alloc(re);
790 ramips_ring_setup(re);
791 ramips_hw_set_macaddr(dev->dev_addr);
793 ramips_setup_dma(re);
794 ramips_fe_wr((ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) & 0xff) |
795 (RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN |
796 RAMIPS_TX_DMA_EN | RAMIPS_PDMA_SIZE_4DWORDS),
797 RAMIPS_PDMA_GLO_CFG);
798 ramips_fe_wr((ramips_fe_rr(RAMIPS_FE_GLO_CFG) &
799 ~(RAMIPS_US_CYC_CNT_MASK << RAMIPS_US_CYC_CNT_SHIFT)) |
800 ((re->plat->sys_freq / RAMIPS_US_CYC_CNT_DIVISOR) << RAMIPS_US_CYC_CNT_SHIFT),
803 tasklet_init(&re->tx_housekeeping_tasklet, ramips_eth_tx_housekeeping,
805 tasklet_init(&re->rx_tasklet, ramips_eth_rx_hw, (unsigned long)dev);
807 ramips_phy_start(re);
809 ramips_fe_wr(RAMIPS_DELAY_INIT, RAMIPS_DLY_INT_CFG);
810 ramips_fe_wr(RAMIPS_TX_DLY_INT | RAMIPS_RX_DLY_INT, RAMIPS_FE_INT_ENABLE);
811 ramips_fe_wr(ramips_fe_rr(RAMIPS_GDMA1_FWD_CFG) &
812 ~(RAMIPS_GDM1_ICS_EN | RAMIPS_GDM1_TCS_EN | RAMIPS_GDM1_UCS_EN | 0xffff),
813 RAMIPS_GDMA1_FWD_CFG);
814 ramips_fe_wr(ramips_fe_rr(RAMIPS_CDMA_CSG_CFG) &
815 ~(RAMIPS_ICS_GEN_EN | RAMIPS_TCS_GEN_EN | RAMIPS_UCS_GEN_EN),
816 RAMIPS_CDMA_CSG_CFG);
817 ramips_fe_wr(RAMIPS_PSE_FQFC_CFG_INIT, RAMIPS_PSE_FQ_CFG);
818 ramips_fe_wr(1, RAMIPS_FE_RST_GL);
819 ramips_fe_wr(0, RAMIPS_FE_RST_GL);
821 netif_start_queue(dev);
825 free_irq(dev->irq, dev);
830 ramips_eth_stop(struct net_device *dev)
832 struct raeth_priv *re = netdev_priv(dev);
834 ramips_fe_wr(ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) &
835 ~(RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN | RAMIPS_TX_DMA_EN),
836 RAMIPS_PDMA_GLO_CFG);
838 /* disable all interrupts in the hw */
839 ramips_fe_wr(0, RAMIPS_FE_INT_ENABLE);
842 free_irq(dev->irq, dev);
843 netif_stop_queue(dev);
844 tasklet_kill(&re->tx_housekeeping_tasklet);
845 tasklet_kill(&re->rx_tasklet);
846 ramips_ring_cleanup(re);
847 ramips_ring_free(re);
848 RADEBUG("ramips_eth: stopped\n");
853 ramips_eth_probe(struct net_device *dev)
855 struct raeth_priv *re = netdev_priv(dev);
858 BUG_ON(!re->plat->reset_fe);
859 re->plat->reset_fe();
860 net_srandom(jiffies);
861 memcpy(dev->dev_addr, re->plat->mac, ETH_ALEN);
865 dev->watchdog_timeo = TX_TIMEOUT;
866 spin_lock_init(&re->page_lock);
867 spin_lock_init(&re->phy_lock);
869 err = ramips_mdio_init(re);
873 err = ramips_phy_connect(re);
875 goto err_mdio_cleanup;
880 ramips_mdio_cleanup(re);
885 ramips_eth_uninit(struct net_device *dev)
887 struct raeth_priv *re = netdev_priv(dev);
889 ramips_phy_disconnect(re);
890 ramips_mdio_cleanup(re);
893 static const struct net_device_ops ramips_eth_netdev_ops = {
894 .ndo_init = ramips_eth_probe,
895 .ndo_uninit = ramips_eth_uninit,
896 .ndo_open = ramips_eth_open,
897 .ndo_stop = ramips_eth_stop,
898 .ndo_start_xmit = ramips_eth_hard_start_xmit,
899 .ndo_tx_timeout = ramips_eth_timeout,
900 .ndo_change_mtu = eth_change_mtu,
901 .ndo_set_mac_address = eth_mac_addr,
902 .ndo_validate_addr = eth_validate_addr,
906 ramips_eth_plat_probe(struct platform_device *plat)
908 struct raeth_priv *re;
909 struct ramips_eth_platform_data *data = plat->dev.platform_data;
910 struct resource *res;
914 dev_err(&plat->dev, "no platform data specified\n");
918 res = platform_get_resource(plat, IORESOURCE_MEM, 0);
920 dev_err(&plat->dev, "no memory resource found\n");
924 ramips_fe_base = ioremap_nocache(res->start, res->end - res->start + 1);
928 ramips_dev = alloc_etherdev(sizeof(struct raeth_priv));
930 dev_err(&plat->dev, "alloc_etherdev failed\n");
935 strcpy(ramips_dev->name, "eth%d");
936 ramips_dev->irq = platform_get_irq(plat, 0);
937 if (ramips_dev->irq < 0) {
938 dev_err(&plat->dev, "no IRQ resource found\n");
942 ramips_dev->addr_len = ETH_ALEN;
943 ramips_dev->base_addr = (unsigned long)ramips_fe_base;
944 ramips_dev->netdev_ops = &ramips_eth_netdev_ops;
946 re = netdev_priv(ramips_dev);
948 re->netdev = ramips_dev;
949 re->parent = &plat->dev;
950 re->speed = data->speed;
951 re->duplex = data->duplex;
952 re->rx_fc = data->rx_fc;
953 re->tx_fc = data->tx_fc;
956 err = register_netdev(ramips_dev);
958 dev_err(&plat->dev, "error bringing up device\n");
962 RADEBUG("ramips_eth: loaded\n");
968 iounmap(ramips_fe_base);
973 ramips_eth_plat_remove(struct platform_device *plat)
975 unregister_netdev(ramips_dev);
976 free_netdev(ramips_dev);
977 RADEBUG("ramips_eth: unloaded\n");
981 static struct platform_driver ramips_eth_driver = {
982 .probe = ramips_eth_plat_probe,
983 .remove = ramips_eth_plat_remove,
985 .name = "ramips_eth",
986 .owner = THIS_MODULE,
991 ramips_eth_init(void)
995 ret = rt305x_esw_init();
999 ret = platform_driver_register(&ramips_eth_driver);
1002 "ramips_eth: Error registering platfom driver!\n");
1014 ramips_eth_cleanup(void)
1016 platform_driver_unregister(&ramips_eth_driver);
1020 module_init(ramips_eth_init);
1021 module_exit(ramips_eth_cleanup);
1023 MODULE_LICENSE("GPL");
1024 MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
1025 MODULE_DESCRIPTION("ethernet driver for ramips boards");