ramips: move the ethernet driver into a separate directory

Also clean up the Kconfig symbols.

SVN-Revision: 30670

1 files changed, 0 insertions, 1025 deletions

diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c
deleted file mode 100644
index b9979fc..0000000
--- a/target/linux/ramips/files/drivers/net/ramips.c
+++ /dev/null
@@ -1,1025 +0,0 @@
-/*
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; version 2 of the License
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- *
- *   Copyright (C) 2009 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/dma-mapping.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/platform_device.h>
-#include <linux/phy.h>
-
-#include <ramips_eth_platform.h>
-#include "ramips_eth.h"
-
-#define TX_TIMEOUT (20 * HZ / 100)
-#define	MAX_RX_LENGTH	1600
-
-#ifdef CONFIG_RALINK_RT305X
-#include "ramips_esw.c"
-#else
-static inline int rt305x_esw_init(void) { return 0; }
-static inline void rt305x_esw_exit(void) { }
-#endif
-
-#define phys_to_bus(a)  (a & 0x1FFFFFFF)
-
-#ifdef CONFIG_RAMIPS_ETH_DEBUG
-#define RADEBUG(fmt, args...)	printk(KERN_DEBUG fmt, ## args)
-#else
-#define RADEBUG(fmt, args...)	do {} while (0)
-#endif
-
-static struct net_device * ramips_dev;
-static void __iomem *ramips_fe_base = 0;
-
-static inline void
-ramips_fe_wr(u32 val, unsigned reg)
-{
-	__raw_writel(val, ramips_fe_base + reg);
-}
-
-static inline u32
-ramips_fe_rr(unsigned reg)
-{
-	return __raw_readl(ramips_fe_base + reg);
-}
-
-static inline void
-ramips_fe_int_disable(u32 mask)
-{
-	ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) & ~mask,
-		     RAMIPS_FE_INT_ENABLE);
-	/* flush write */
-	ramips_fe_rr(RAMIPS_FE_INT_ENABLE);
-}
-
-static inline void
-ramips_fe_int_enable(u32 mask)
-{
-	ramips_fe_wr(ramips_fe_rr(RAMIPS_FE_INT_ENABLE) | mask,
-		     RAMIPS_FE_INT_ENABLE);
-	/* flush write */
-	ramips_fe_rr(RAMIPS_FE_INT_ENABLE);
-}
-
-static inline void
-ramips_hw_set_macaddr(unsigned char *mac)
-{
-	ramips_fe_wr((mac[0] << 8) | mac[1], RAMIPS_GDMA1_MAC_ADRH);
-	ramips_fe_wr((mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5],
-		     RAMIPS_GDMA1_MAC_ADRL);
-}
-
-static struct sk_buff *
-ramips_alloc_skb(struct raeth_priv *re)
-{
-	struct sk_buff *skb;
-
-	skb = netdev_alloc_skb(re->netdev, MAX_RX_LENGTH + NET_IP_ALIGN);
-	if (!skb)
-		return NULL;
-
-	skb_reserve(skb, NET_IP_ALIGN);
-
-	return skb;
-}
-
-static void
-ramips_ring_setup(struct raeth_priv *re)
-{
-	int len;
-	int i;
-
-	len = NUM_TX_DESC * sizeof(struct ramips_tx_dma);
-	memset(re->tx, 0, len);
-
-	for (i = 0; i < NUM_TX_DESC; i++) {
-		struct ramips_tx_dma *txd;
-
-		txd = &re->tx[i];
-		txd->txd4 = TX_DMA_QN(3) | TX_DMA_PN(1);
-		txd->txd2 = TX_DMA_LSO | TX_DMA_DONE;
-
-		if (re->tx_skb[i] != NULL) {
-			netdev_warn(re->netdev,
-				    "dirty skb for TX desc %d\n", i);
-			re->tx_skb[i] = NULL;
-		}
-	}
-
-	len = NUM_RX_DESC * sizeof(struct ramips_rx_dma);
-	memset(re->rx, 0, len);
-
-	for (i = 0; i < NUM_RX_DESC; i++) {
-		dma_addr_t dma_addr;
-
-		BUG_ON(re->rx_skb[i] == NULL);
-		dma_addr = dma_map_single(&re->netdev->dev, re->rx_skb[i]->data,
-					  MAX_RX_LENGTH, DMA_FROM_DEVICE);
-		re->rx_dma[i] = dma_addr;
-		re->rx[i].rxd1 = (unsigned int) dma_addr;
-		re->rx[i].rxd2 = RX_DMA_LSO;
-	}
-
-	/* flush descriptors */
-	wmb();
-}
-
-static void
-ramips_ring_cleanup(struct raeth_priv *re)
-{
-	int i;
-
-	for (i = 0; i < NUM_RX_DESC; i++)
-		if (re->rx_skb[i])
-			dma_unmap_single(&re->netdev->dev, re->rx_dma[i],
-					 MAX_RX_LENGTH, DMA_FROM_DEVICE);
-
-	for (i = 0; i < NUM_TX_DESC; i++)
-		if (re->tx_skb[i]) {
-			dev_kfree_skb_any(re->tx_skb[i]);
-			re->tx_skb[i] = NULL;
-		}
-}
-
-#if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT3883)
-
-#define RAMIPS_MDIO_RETRY	1000
-
-static unsigned char *ramips_speed_str(struct raeth_priv *re)
-{
-	switch (re->speed) {
-	case SPEED_1000:
-		return "1000";
-	case SPEED_100:
-		return "100";
-	case SPEED_10:
-		return "10";
-	}
-
-	return "?";
-}
-
-static void ramips_link_adjust(struct raeth_priv *re)
-{
-	struct ramips_eth_platform_data *pdata;
-	u32 mdio_cfg;
-
-	pdata = re->parent->platform_data;
-	if (!re->link) {
-		netif_carrier_off(re->netdev);
-		netdev_info(re->netdev, "link down\n");
-		return;
-	}
-
-	mdio_cfg = RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 |
-		   RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 |
-		   RAMIPS_MDIO_CFG_GP1_FRC_EN;
-
-	if (re->duplex == DUPLEX_FULL)
-		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_DUPLEX;
-
-	if (re->tx_fc)
-		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_FC_TX;
-
-	if (re->rx_fc)
-		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_FC_RX;
-
-	switch (re->speed) {
-	case SPEED_10:
-		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_10;
-		break;
-	case SPEED_100:
-		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_100;
-		break;
-	case SPEED_1000:
-		mdio_cfg |= RAMIPS_MDIO_CFG_GP1_SPEED_1000;
-		break;
-	default:
-		BUG();
-	}
-
-	ramips_fe_wr(mdio_cfg, RAMIPS_MDIO_CFG);
-
-	netif_carrier_on(re->netdev);
-	netdev_info(re->netdev, "link up (%sMbps/%s duplex)\n",
-		    ramips_speed_str(re),
-		    (DUPLEX_FULL == re->duplex) ? "Full" : "Half");
-}
-
-static int
-ramips_mdio_wait_ready(struct raeth_priv *re)
-{
-	int retries;
-
-	retries = RAMIPS_MDIO_RETRY;
-	while (1) {
-		u32 t;
-
-		t = ramips_fe_rr(RAMIPS_MDIO_ACCESS);
-		if ((t & (0x1 << 31)) == 0)
-			return 0;
-
-		if (retries-- == 0)
-			break;
-
-		udelay(1);
-	}
-
-	dev_err(re->parent, "MDIO operation timed out\n");
-	return -ETIMEDOUT;
-}
-
-static int
-ramips_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg)
-{
-	struct raeth_priv *re = bus->priv;
-	int err;
-	u32 t;
-
-	err = ramips_mdio_wait_ready(re);
-	if (err)
-		return 0xffff;
-
-	t = (phy_addr << 24) | (phy_reg << 16);
-	ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
-	t |= (1 << 31);
-	ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
-
-	err = ramips_mdio_wait_ready(re);
-	if (err)
-		return 0xffff;
-
-	RADEBUG("%s: addr=%04x, reg=%04x, value=%04x\n", __func__,
-		phy_addr, phy_reg, ramips_fe_rr(RAMIPS_MDIO_ACCESS) & 0xffff);
-
-	return ramips_fe_rr(RAMIPS_MDIO_ACCESS) & 0xffff;
-}
-
-static int
-ramips_mdio_write(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val)
-{
-	struct raeth_priv *re = bus->priv;
-	int err;
-	u32 t;
-
-	RADEBUG("%s: addr=%04x, reg=%04x, value=%04x\n", __func__,
-		phy_addr, phy_reg, ramips_fe_rr(RAMIPS_MDIO_ACCESS) & 0xffff);
-
-	err = ramips_mdio_wait_ready(re);
-	if (err)
-		return err;
-
-	t = (1 << 30) | (phy_addr << 24) | (phy_reg << 16) | val;
-	ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
-	t |= (1 << 31);
-	ramips_fe_wr(t, RAMIPS_MDIO_ACCESS);
-
-	return ramips_mdio_wait_ready(re);
-}
-
-static int
-ramips_mdio_reset(struct mii_bus *bus)
-{
-	/* TODO */
-	return 0;
-}
-
-static int
-ramips_mdio_init(struct raeth_priv *re)
-{
-	int err;
-	int i;
-
-	re->mii_bus = mdiobus_alloc();
-	if (re->mii_bus == NULL)
-		return -ENOMEM;
-
-	re->mii_bus->name = "ramips_mdio";
-	re->mii_bus->read = ramips_mdio_read;
-	re->mii_bus->write = ramips_mdio_write;
-	re->mii_bus->reset = ramips_mdio_reset;
-	re->mii_bus->irq = re->mii_irq;
-	re->mii_bus->priv = re;
-	re->mii_bus->parent = re->parent;
-
-	snprintf(re->mii_bus->id, MII_BUS_ID_SIZE, "%s", "ramips_mdio");
-	re->mii_bus->phy_mask = 0;
-
-	for (i = 0; i < PHY_MAX_ADDR; i++)
-		re->mii_irq[i] = PHY_POLL;
-
-	err = mdiobus_register(re->mii_bus);
-	if (err)
-		goto err_free_bus;
-
-	return 0;
-
-err_free_bus:
-	kfree(re->mii_bus);
-	return err;
-}
-
-static void
-ramips_mdio_cleanup(struct raeth_priv *re)
-{
-	mdiobus_unregister(re->mii_bus);
-	kfree(re->mii_bus);
-}
-
-static void
-ramips_phy_link_adjust(struct net_device *dev)
-{
-	struct raeth_priv *re = netdev_priv(dev);
-	struct phy_device *phydev = re->phy_dev;
-	unsigned long flags;
-	int status_change = 0;
-
-	spin_lock_irqsave(&re->phy_lock, flags);
-
-	if (phydev->link)
-		if (re->duplex != phydev->duplex ||
-		    re->speed != phydev->speed)
-			status_change = 1;
-
-	if (phydev->link != re->link)
-		status_change = 1;
-
-	re->link = phydev->link;
-	re->duplex = phydev->duplex;
-	re->speed = phydev->speed;
-
-	if (status_change)
-		ramips_link_adjust(re);
-
-	spin_unlock_irqrestore(&re->phy_lock, flags);
-}
-
-static int
-ramips_phy_connect_multi(struct raeth_priv *re)
-{
-	struct net_device *netdev = re->netdev;
-	struct ramips_eth_platform_data *pdata;
-	struct phy_device *phydev = NULL;
-	int phy_addr;
-	int ret = 0;
-
-	pdata = re->parent->platform_data;
-	for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
-		if (!(pdata->phy_mask & (1 << phy_addr)))
-			continue;
-
-		if (re->mii_bus->phy_map[phy_addr] == NULL)
-			continue;
-
-		RADEBUG("%s: PHY found at %s, uid=%08x\n",
-			netdev->name,
-			dev_name(&re->mii_bus->phy_map[phy_addr]->dev),
-			re->mii_bus->phy_map[phy_addr]->phy_id);
-
-		if (phydev == NULL)
-			phydev = re->mii_bus->phy_map[phy_addr];
-	}
-
-	if (!phydev) {
-		netdev_err(netdev, "no PHY found with phy_mask=%08x\n",
-			   pdata->phy_mask);
-		return -ENODEV;
-	}
-
-	re->phy_dev = phy_connect(netdev, dev_name(&phydev->dev),
-				  ramips_phy_link_adjust, 0,
-				  pdata->phy_if_mode);
-
-	if (IS_ERR(re->phy_dev)) {
-		netdev_err(netdev, "could not connect to PHY at %s\n",
-			   dev_name(&phydev->dev));
-		return PTR_ERR(re->phy_dev);
-	}
-
-	phydev->supported &= PHY_GBIT_FEATURES;
-	phydev->advertising = phydev->supported;
-
-	RADEBUG("%s: connected to PHY at %s [uid=%08x, driver=%s]\n",
-		netdev->name, dev_name(&phydev->dev),
-		phydev->phy_id, phydev->drv->name);
-
-	re->link = 0;
-	re->speed = 0;
-	re->duplex = -1;
-	re->rx_fc = 0;
-	re->tx_fc = 0;
-
-	return ret;
-}
-
-static int
-ramips_phy_connect_fixed(struct raeth_priv *re)
-{
-	struct ramips_eth_platform_data *pdata;
-
-	pdata = re->parent->platform_data;
-	switch (pdata->speed) {
-	case SPEED_10:
-	case SPEED_100:
-	case SPEED_1000:
-		break;
-	default:
-		netdev_err(re->netdev, "invalid speed specified\n");
-		return -EINVAL;
-	}
-
-	RADEBUG("%s: using fixed link parameters\n", re->netdev->name);
-
-	re->speed = pdata->speed;
-	re->duplex = pdata->duplex;
-	re->tx_fc = pdata->tx_fc;
-	re->rx_fc = pdata->tx_fc;
-
-	return 0;
-}
-
-static int
-ramips_phy_connect(struct raeth_priv *re)
-{
-	struct ramips_eth_platform_data *pdata;
-
-	pdata = re->parent->platform_data;
-	if (pdata->phy_mask)
-		return ramips_phy_connect_multi(re);
-
-	return ramips_phy_connect_fixed(re);
-}
-
-static void
-ramips_phy_disconnect(struct raeth_priv *re)
-{
-	if (re->phy_dev)
-		phy_disconnect(re->phy_dev);
-}
-
-static void
-ramips_phy_start(struct raeth_priv *re)
-{
-	unsigned long flags;
-
-	if (re->phy_dev) {
-		phy_start(re->phy_dev);
-	} else {
-		spin_lock_irqsave(&re->phy_lock, flags);
-		re->link = 1;
-		ramips_link_adjust(re);
-		spin_unlock_irqrestore(&re->phy_lock, flags);
-	}
-}
-
-static void
-ramips_phy_stop(struct raeth_priv *re)
-{
-	unsigned long flags;
-
-	if (re->phy_dev)
-		phy_stop(re->phy_dev);
-
-	spin_lock_irqsave(&re->phy_lock, flags);
-	re->link = 0;
-	ramips_link_adjust(re);
-	spin_unlock_irqrestore(&re->phy_lock, flags);
-}
-#else
-static inline int
-ramips_mdio_init(struct raeth_priv *re)
-{
-	return 0;
-}
-
-static inline void
-ramips_mdio_cleanup(struct raeth_priv *re)
-{
-}
-
-static inline int
-ramips_phy_connect(struct raeth_priv *re)
-{
-	return 0;
-}
-
-static inline void
-ramips_phy_disconnect(struct raeth_priv *re)
-{
-}
-
-static inline void
-ramips_phy_start(struct raeth_priv *re)
-{
-}
-
-static inline void
-ramips_phy_stop(struct raeth_priv *re)
-{
-}
-#endif /* CONFIG_RALINK_RT288X || CONFIG_RALINK_RT3883 */
-
-static void
-ramips_ring_free(struct raeth_priv *re)
-{
-	int len;
-	int i;
-
-	for (i = 0; i < NUM_RX_DESC; i++)
-		if (re->rx_skb[i])
-			dev_kfree_skb_any(re->rx_skb[i]);
-
-	if (re->rx) {
-		len = NUM_RX_DESC * sizeof(struct ramips_rx_dma);
-		dma_free_coherent(&re->netdev->dev, len, re->rx,
-				  re->rx_desc_dma);
-	}
-
-	if (re->tx) {
-		len = NUM_TX_DESC * sizeof(struct ramips_tx_dma);
-		dma_free_coherent(&re->netdev->dev, len, re->tx,
-				  re->tx_desc_dma);
-	}
-}
-
-static int
-ramips_ring_alloc(struct raeth_priv *re)
-{
-	int len;
-	int err = -ENOMEM;
-	int i;
-
-	/* allocate tx ring */
-	len = NUM_TX_DESC * sizeof(struct ramips_tx_dma);
-	re->tx = dma_alloc_coherent(&re->netdev->dev, len,
-					  &re->tx_desc_dma, GFP_ATOMIC);
-	if (!re->tx)
-		goto err_cleanup;
-
-	/* allocate rx ring */
-	len = NUM_RX_DESC * sizeof(struct ramips_rx_dma);
-	re->rx = dma_alloc_coherent(&re->netdev->dev, len,
-				    &re->rx_desc_dma, GFP_ATOMIC);
-	if (!re->rx)
-		goto err_cleanup;
-
-	for (i = 0; i < NUM_RX_DESC; i++) {
-		struct sk_buff *skb;
-
-		skb = ramips_alloc_skb(re);
-		if (!skb)
-			goto err_cleanup;
-
-		re->rx_skb[i] = skb;
-	}
-
-	return 0;
-
-err_cleanup:
-	ramips_ring_free(re);
-	return err;
-}
-
-static void
-ramips_setup_dma(struct raeth_priv *re)
-{
-	ramips_fe_wr(re->tx_desc_dma, RAMIPS_TX_BASE_PTR0);
-	ramips_fe_wr(NUM_TX_DESC, RAMIPS_TX_MAX_CNT0);
-	ramips_fe_wr(0, RAMIPS_TX_CTX_IDX0);
-	ramips_fe_wr(RAMIPS_PST_DTX_IDX0, RAMIPS_PDMA_RST_CFG);
-
-	ramips_fe_wr(re->rx_desc_dma, RAMIPS_RX_BASE_PTR0);
-	ramips_fe_wr(NUM_RX_DESC, RAMIPS_RX_MAX_CNT0);
-	ramips_fe_wr((NUM_RX_DESC - 1), RAMIPS_RX_CALC_IDX0);
-	ramips_fe_wr(RAMIPS_PST_DRX_IDX0, RAMIPS_PDMA_RST_CFG);
-}
-
-static int
-ramips_eth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	struct raeth_priv *re = netdev_priv(dev);
-	unsigned long tx;
-	unsigned int tx_next;
-	dma_addr_t mapped_addr;
-
-	if (re->plat->min_pkt_len) {
-		if (skb->len < re->plat->min_pkt_len) {
-			if (skb_padto(skb, re->plat->min_pkt_len)) {
-				printk(KERN_ERR
-				       "ramips_eth: skb_padto failed\n");
-				kfree_skb(skb);
-				return 0;
-			}
-			skb_put(skb, re->plat->min_pkt_len - skb->len);
-		}
-	}
-
-	dev->trans_start = jiffies;
-	mapped_addr = dma_map_single(&re->netdev->dev, skb->data, skb->len,
-				     DMA_TO_DEVICE);
-
-	spin_lock(&re->page_lock);
-	tx = ramips_fe_rr(RAMIPS_TX_CTX_IDX0);
-	tx_next = (tx + 1) % NUM_TX_DESC;
-
-	if ((re->tx_skb[tx]) || (re->tx_skb[tx_next]) ||
-	    !(re->tx[tx].txd2 & TX_DMA_DONE) ||
-	    !(re->tx[tx_next].txd2 & TX_DMA_DONE))
-		goto out;
-
-	re->tx[tx].txd1 = (unsigned int) mapped_addr;
-	re->tx[tx].txd2 &= ~(TX_DMA_PLEN0_MASK | TX_DMA_DONE);
-	re->tx[tx].txd2 |= TX_DMA_PLEN0(skb->len);
-	dev->stats.tx_packets++;
-	dev->stats.tx_bytes += skb->len;
-	re->tx_skb[tx] = skb;
-	wmb();
-	ramips_fe_wr(tx_next, RAMIPS_TX_CTX_IDX0);
-	spin_unlock(&re->page_lock);
-	return NETDEV_TX_OK;
-
- out:
-	spin_unlock(&re->page_lock);
-	dev->stats.tx_dropped++;
-	kfree_skb(skb);
-	return NETDEV_TX_OK;
-}
-
-static void
-ramips_eth_rx_hw(unsigned long ptr)
-{
-	struct net_device *dev = (struct net_device *) ptr;
-	struct raeth_priv *re = netdev_priv(dev);
-	int rx;
-	int max_rx = 16;
-
-	while (max_rx) {
-		struct sk_buff *rx_skb, *new_skb;
-		int pktlen;
-
-		rx = (ramips_fe_rr(RAMIPS_RX_CALC_IDX0) + 1) % NUM_RX_DESC;
-		if (!(re->rx[rx].rxd2 & RX_DMA_DONE))
-			break;
-		max_rx--;
-
-		rx_skb = re->rx_skb[rx];
-		pktlen = RX_DMA_PLEN0(re->rx[rx].rxd2);
-
-		new_skb = ramips_alloc_skb(re);
-		/* Reuse the buffer on allocation failures */
-		if (new_skb) {
-			dma_addr_t dma_addr;
-
-			dma_unmap_single(&re->netdev->dev, re->rx_dma[rx],
-					 MAX_RX_LENGTH, DMA_FROM_DEVICE);
-
-			skb_put(rx_skb, pktlen);
-			rx_skb->dev = dev;
-			rx_skb->protocol = eth_type_trans(rx_skb, dev);
-			rx_skb->ip_summed = CHECKSUM_NONE;
-			dev->stats.rx_packets++;
-			dev->stats.rx_bytes += pktlen;
-			netif_rx(rx_skb);
-
-			re->rx_skb[rx] = new_skb;
-
-			dma_addr = dma_map_single(&re->netdev->dev,
-						  new_skb->data,
-						  MAX_RX_LENGTH,
-						  DMA_FROM_DEVICE);
-			re->rx_dma[rx] = dma_addr;
-			re->rx[rx].rxd1 = (unsigned int) dma_addr;
-		} else {
-			dev->stats.rx_dropped++;
-		}
-
-		re->rx[rx].rxd2 &= ~RX_DMA_DONE;
-		wmb();
-		ramips_fe_wr(rx, RAMIPS_RX_CALC_IDX0);
-	}
-
-	if (max_rx == 0)
-		tasklet_schedule(&re->rx_tasklet);
-	else
-		ramips_fe_int_enable(RAMIPS_RX_DLY_INT);
-}
-
-static void
-ramips_eth_tx_housekeeping(unsigned long ptr)
-{
-	struct net_device *dev = (struct net_device*)ptr;
-	struct raeth_priv *re = netdev_priv(dev);
-
-	spin_lock(&re->page_lock);
-	while ((re->tx[re->skb_free_idx].txd2 & TX_DMA_DONE) &&
-	       (re->tx_skb[re->skb_free_idx])) {
-		dev_kfree_skb_irq(re->tx_skb[re->skb_free_idx]);
-		re->tx_skb[re->skb_free_idx] = 0;
-		re->skb_free_idx++;
-		if (re->skb_free_idx >= NUM_TX_DESC)
-			re->skb_free_idx = 0;
-	}
-	spin_unlock(&re->page_lock);
-
-	ramips_fe_int_enable(RAMIPS_TX_DLY_INT);
-}
-
-static void
-ramips_eth_timeout(struct net_device *dev)
-{
-	struct raeth_priv *re = netdev_priv(dev);
-
-	tasklet_schedule(&re->tx_housekeeping_tasklet);
-}
-
-static irqreturn_t
-ramips_eth_irq(int irq, void *dev)
-{
-	struct raeth_priv *re = netdev_priv(dev);
-	unsigned long fe_int = ramips_fe_rr(RAMIPS_FE_INT_STATUS);
-
-	ramips_fe_wr(0xFFFFFFFF, RAMIPS_FE_INT_STATUS);
-
-	if (fe_int & RAMIPS_RX_DLY_INT) {
-		ramips_fe_int_disable(RAMIPS_RX_DLY_INT);
-		tasklet_schedule(&re->rx_tasklet);
-	}
-
-	if (fe_int & RAMIPS_TX_DLY_INT) {
-		ramips_fe_int_disable(RAMIPS_TX_DLY_INT);
-		tasklet_schedule(&re->tx_housekeeping_tasklet);
-	}
-
-	return IRQ_HANDLED;
-}
-
-static int
-ramips_eth_open(struct net_device *dev)
-{
-	struct raeth_priv *re = netdev_priv(dev);
-	int err;
-
-	err = request_irq(dev->irq, ramips_eth_irq, IRQF_DISABLED,
-			  dev->name, dev);
-	if (err)
-		return err;
-
-	err = ramips_ring_alloc(re);
-	if (err)
-		goto err_free_irq;
-
-	ramips_ring_setup(re);
-	ramips_hw_set_macaddr(dev->dev_addr);
-
-	ramips_setup_dma(re);
-	ramips_fe_wr((ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) & 0xff) |
-		(RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN |
-		RAMIPS_TX_DMA_EN | RAMIPS_PDMA_SIZE_4DWORDS),
-		RAMIPS_PDMA_GLO_CFG);
-	ramips_fe_wr((ramips_fe_rr(RAMIPS_FE_GLO_CFG) &
-		~(RAMIPS_US_CYC_CNT_MASK << RAMIPS_US_CYC_CNT_SHIFT)) |
-		((re->plat->sys_freq / RAMIPS_US_CYC_CNT_DIVISOR) << RAMIPS_US_CYC_CNT_SHIFT),
-		RAMIPS_FE_GLO_CFG);
-
-	tasklet_init(&re->tx_housekeeping_tasklet, ramips_eth_tx_housekeeping,
-		     (unsigned long)dev);
-	tasklet_init(&re->rx_tasklet, ramips_eth_rx_hw, (unsigned long)dev);
-
-	ramips_phy_start(re);
-
-	ramips_fe_wr(RAMIPS_DELAY_INIT, RAMIPS_DLY_INT_CFG);
-	ramips_fe_wr(RAMIPS_TX_DLY_INT | RAMIPS_RX_DLY_INT, RAMIPS_FE_INT_ENABLE);
-	ramips_fe_wr(ramips_fe_rr(RAMIPS_GDMA1_FWD_CFG) &
-		~(RAMIPS_GDM1_ICS_EN | RAMIPS_GDM1_TCS_EN | RAMIPS_GDM1_UCS_EN | 0xffff),
-		RAMIPS_GDMA1_FWD_CFG);
-	ramips_fe_wr(ramips_fe_rr(RAMIPS_CDMA_CSG_CFG) &
-		~(RAMIPS_ICS_GEN_EN | RAMIPS_TCS_GEN_EN | RAMIPS_UCS_GEN_EN),
-		RAMIPS_CDMA_CSG_CFG);
-	ramips_fe_wr(RAMIPS_PSE_FQFC_CFG_INIT, RAMIPS_PSE_FQ_CFG);
-	ramips_fe_wr(1, RAMIPS_FE_RST_GL);
-	ramips_fe_wr(0, RAMIPS_FE_RST_GL);
-
-	netif_start_queue(dev);
-	return 0;
-
- err_free_irq:
-	free_irq(dev->irq, dev);
-	return err;
-}
-
-static int
-ramips_eth_stop(struct net_device *dev)
-{
-	struct raeth_priv *re = netdev_priv(dev);
-
-	ramips_fe_wr(ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) &
-		     ~(RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN | RAMIPS_TX_DMA_EN),
-		     RAMIPS_PDMA_GLO_CFG);
-
-	/* disable all interrupts in the hw */
-	ramips_fe_wr(0, RAMIPS_FE_INT_ENABLE);
-
-	ramips_phy_stop(re);
-	free_irq(dev->irq, dev);
-	netif_stop_queue(dev);
-	tasklet_kill(&re->tx_housekeeping_tasklet);
-	tasklet_kill(&re->rx_tasklet);
-	ramips_ring_cleanup(re);
-	ramips_ring_free(re);
-	RADEBUG("ramips_eth: stopped\n");
-	return 0;
-}
-
-static int __init
-ramips_eth_probe(struct net_device *dev)
-{
-	struct raeth_priv *re = netdev_priv(dev);
-	int err;
-
-	BUG_ON(!re->plat->reset_fe);
-	re->plat->reset_fe();
-	net_srandom(jiffies);
-	memcpy(dev->dev_addr, re->plat->mac, ETH_ALEN);
-
-	ether_setup(dev);
-	dev->mtu = 1500;
-	dev->watchdog_timeo = TX_TIMEOUT;
-	spin_lock_init(&re->page_lock);
-	spin_lock_init(&re->phy_lock);
-
-	err = ramips_mdio_init(re);
-	if (err)
-		return err;
-
-	err = ramips_phy_connect(re);
-	if (err)
-		goto err_mdio_cleanup;
-
-	return 0;
-
-err_mdio_cleanup:
-	ramips_mdio_cleanup(re);
-	return err;
-}
-
-static void
-ramips_eth_uninit(struct net_device *dev)
-{
-	struct raeth_priv *re = netdev_priv(dev);
-
-	ramips_phy_disconnect(re);
-	ramips_mdio_cleanup(re);
-}
-
-static const struct net_device_ops ramips_eth_netdev_ops = {
-	.ndo_init		= ramips_eth_probe,
-	.ndo_uninit		= ramips_eth_uninit,
-	.ndo_open		= ramips_eth_open,
-	.ndo_stop		= ramips_eth_stop,
-	.ndo_start_xmit		= ramips_eth_hard_start_xmit,
-	.ndo_tx_timeout		= ramips_eth_timeout,
-	.ndo_change_mtu		= eth_change_mtu,
-	.ndo_set_mac_address	= eth_mac_addr,
-	.ndo_validate_addr	= eth_validate_addr,
-};
-
-static int
-ramips_eth_plat_probe(struct platform_device *plat)
-{
-	struct raeth_priv *re;
-	struct ramips_eth_platform_data *data = plat->dev.platform_data;
-	struct resource *res;
-	int err;
-
-	if (!data) {
-		dev_err(&plat->dev, "no platform data specified\n");
-		return -EINVAL;
-	}
-
-	res = platform_get_resource(plat, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&plat->dev, "no memory resource found\n");
-		return -ENXIO;
-	}
-
-	ramips_fe_base = ioremap_nocache(res->start, res->end - res->start + 1);
-	if (!ramips_fe_base)
-		return -ENOMEM;
-
-	ramips_dev = alloc_etherdev(sizeof(struct raeth_priv));
-	if (!ramips_dev) {
-		dev_err(&plat->dev, "alloc_etherdev failed\n");
-		err = -ENOMEM;
-		goto err_unmap;
-	}
-
-	strcpy(ramips_dev->name, "eth%d");
-	ramips_dev->irq = platform_get_irq(plat, 0);
-	if (ramips_dev->irq < 0) {
-		dev_err(&plat->dev, "no IRQ resource found\n");
-		err = -ENXIO;
-		goto err_free_dev;
-	}
-	ramips_dev->addr_len = ETH_ALEN;
-	ramips_dev->base_addr = (unsigned long)ramips_fe_base;
-	ramips_dev->netdev_ops = &ramips_eth_netdev_ops;
-
-	re = netdev_priv(ramips_dev);
-
-	re->netdev = ramips_dev;
-	re->parent = &plat->dev;
-	re->speed = data->speed;
-	re->duplex = data->duplex;
-	re->rx_fc = data->rx_fc;
-	re->tx_fc = data->tx_fc;
-	re->plat = data;
-
-	err = register_netdev(ramips_dev);
-	if (err) {
-		dev_err(&plat->dev, "error bringing up device\n");
-		goto err_free_dev;
-	}
-
-	RADEBUG("ramips_eth: loaded\n");
-	return 0;
-
- err_free_dev:
-	kfree(ramips_dev);
- err_unmap:
-	iounmap(ramips_fe_base);
-	return err;
-}
-
-static int
-ramips_eth_plat_remove(struct platform_device *plat)
-{
-	unregister_netdev(ramips_dev);
-	free_netdev(ramips_dev);
-	RADEBUG("ramips_eth: unloaded\n");
-	return 0;
-}
-
-static struct platform_driver ramips_eth_driver = {
-	.probe = ramips_eth_plat_probe,
-	.remove = ramips_eth_plat_remove,
-	.driver = {
-		.name = "ramips_eth",
-		.owner = THIS_MODULE,
-	},
-};
-
-static int __init
-ramips_eth_init(void)
-{
-	int ret;
-
-	ret = rt305x_esw_init();
-	if (ret)
-		return ret;
-
-	ret = platform_driver_register(&ramips_eth_driver);
-	if (ret) {
-		printk(KERN_ERR
-		       "ramips_eth: Error registering platfom driver!\n");
-		goto esw_cleanup;
-	}
-
-	return 0;
-
-esw_cleanup:
-	rt305x_esw_exit();
-	return ret;
-}
-
-static void __exit
-ramips_eth_cleanup(void)
-{
-	platform_driver_unregister(&ramips_eth_driver);
-	rt305x_esw_exit();
-}
-
-module_init(ramips_eth_init);
-module_exit(ramips_eth_cleanup);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
-MODULE_DESCRIPTION("ethernet driver for ramips boards");