ar71xx: move arch specific files to files-2.6.39

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29867 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 1265 deletions

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
deleted file mode 100644
index 3ebf4b171e..0000000000
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
+++ /dev/null
@@ -1,1265 +0,0 @@
-/*
- *  Atheros AR71xx built-in ethernet mac driver
- *
- *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- *  Based on Atheros' AG7100 driver
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
- */
-
-#include "ag71xx.h"
-
-#define AG71XX_DEFAULT_MSG_ENABLE	\
-	(NETIF_MSG_DRV			\
-	| NETIF_MSG_PROBE		\
-	| NETIF_MSG_LINK		\
-	| NETIF_MSG_TIMER		\
-	| NETIF_MSG_IFDOWN		\
-	| NETIF_MSG_IFUP		\
-	| NETIF_MSG_RX_ERR		\
-	| NETIF_MSG_TX_ERR)
-
-static int ag71xx_msg_level = -1;
-
-module_param_named(msg_level, ag71xx_msg_level, int, 0);
-MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)");
-
-static void ag71xx_dump_dma_regs(struct ag71xx *ag)
-{
-	DBG("%s: dma_tx_ctrl=%08x, dma_tx_desc=%08x, dma_tx_status=%08x\n",
-		ag->dev->name,
-		ag71xx_rr(ag, AG71XX_REG_TX_CTRL),
-		ag71xx_rr(ag, AG71XX_REG_TX_DESC),
-		ag71xx_rr(ag, AG71XX_REG_TX_STATUS));
-
-	DBG("%s: dma_rx_ctrl=%08x, dma_rx_desc=%08x, dma_rx_status=%08x\n",
-		ag->dev->name,
-		ag71xx_rr(ag, AG71XX_REG_RX_CTRL),
-		ag71xx_rr(ag, AG71XX_REG_RX_DESC),
-		ag71xx_rr(ag, AG71XX_REG_RX_STATUS));
-}
-
-static void ag71xx_dump_regs(struct ag71xx *ag)
-{
-	DBG("%s: mac_cfg1=%08x, mac_cfg2=%08x, ipg=%08x, hdx=%08x, mfl=%08x\n",
-		ag->dev->name,
-		ag71xx_rr(ag, AG71XX_REG_MAC_CFG1),
-		ag71xx_rr(ag, AG71XX_REG_MAC_CFG2),
-		ag71xx_rr(ag, AG71XX_REG_MAC_IPG),
-		ag71xx_rr(ag, AG71XX_REG_MAC_HDX),
-		ag71xx_rr(ag, AG71XX_REG_MAC_MFL));
-	DBG("%s: mac_ifctl=%08x, mac_addr1=%08x, mac_addr2=%08x\n",
-		ag->dev->name,
-		ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL),
-		ag71xx_rr(ag, AG71XX_REG_MAC_ADDR1),
-		ag71xx_rr(ag, AG71XX_REG_MAC_ADDR2));
-	DBG("%s: fifo_cfg0=%08x, fifo_cfg1=%08x, fifo_cfg2=%08x\n",
-		ag->dev->name,
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0),
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1),
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2));
-	DBG("%s: fifo_cfg3=%08x, fifo_cfg4=%08x, fifo_cfg5=%08x\n",
-		ag->dev->name,
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3),
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4),
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5));
-}
-
-static inline void ag71xx_dump_intr(struct ag71xx *ag, char *label, u32 intr)
-{
-	DBG("%s: %s intr=%08x %s%s%s%s%s%s\n",
-		ag->dev->name, label, intr,
-		(intr & AG71XX_INT_TX_PS) ? "TXPS " : "",
-		(intr & AG71XX_INT_TX_UR) ? "TXUR " : "",
-		(intr & AG71XX_INT_TX_BE) ? "TXBE " : "",
-		(intr & AG71XX_INT_RX_PR) ? "RXPR " : "",
-		(intr & AG71XX_INT_RX_OF) ? "RXOF " : "",
-		(intr & AG71XX_INT_RX_BE) ? "RXBE " : "");
-}
-
-static void ag71xx_ring_free(struct ag71xx_ring *ring)
-{
-	kfree(ring->buf);
-
-	if (ring->descs_cpu)
-		dma_free_coherent(NULL, ring->size * ring->desc_size,
-				  ring->descs_cpu, ring->descs_dma);
-}
-
-static int ag71xx_ring_alloc(struct ag71xx_ring *ring)
-{
-	int err;
-	int i;
-
-	ring->desc_size = sizeof(struct ag71xx_desc);
-	if (ring->desc_size % cache_line_size()) {
-		DBG("ag71xx: ring %p, desc size %u rounded to %u\n",
-			ring, ring->desc_size,
-			roundup(ring->desc_size, cache_line_size()));
-		ring->desc_size = roundup(ring->desc_size, cache_line_size());
-	}
-
-	ring->descs_cpu = dma_alloc_coherent(NULL, ring->size * ring->desc_size,
-					     &ring->descs_dma, GFP_ATOMIC);
-	if (!ring->descs_cpu) {
-		err = -ENOMEM;
-		goto err;
-	}
-
-
-	ring->buf = kzalloc(ring->size * sizeof(*ring->buf), GFP_KERNEL);
-	if (!ring->buf) {
-		err = -ENOMEM;
-		goto err;
-	}
-
-	for (i = 0; i < ring->size; i++) {
-		int idx = i * ring->desc_size;
-		ring->buf[i].desc = (struct ag71xx_desc *)&ring->descs_cpu[idx];
-		DBG("ag71xx: ring %p, desc %d at %p\n",
-			ring, i, ring->buf[i].desc);
-	}
-
-	return 0;
-
-err:
-	return err;
-}
-
-static void ag71xx_ring_tx_clean(struct ag71xx *ag)
-{
-	struct ag71xx_ring *ring = &ag->tx_ring;
-	struct net_device *dev = ag->dev;
-
-	while (ring->curr != ring->dirty) {
-		u32 i = ring->dirty % ring->size;
-
-		if (!ag71xx_desc_empty(ring->buf[i].desc)) {
-			ring->buf[i].desc->ctrl = 0;
-			dev->stats.tx_errors++;
-		}
-
-		if (ring->buf[i].skb)
-			dev_kfree_skb_any(ring->buf[i].skb);
-
-		ring->buf[i].skb = NULL;
-
-		ring->dirty++;
-	}
-
-	/* flush descriptors */
-	wmb();
-
-}
-
-static void ag71xx_ring_tx_init(struct ag71xx *ag)
-{
-	struct ag71xx_ring *ring = &ag->tx_ring;
-	int i;
-
-	for (i = 0; i < ring->size; i++) {
-		ring->buf[i].desc->next = (u32) (ring->descs_dma +
-			ring->desc_size * ((i + 1) % ring->size));
-
-		ring->buf[i].desc->ctrl = DESC_EMPTY;
-		ring->buf[i].skb = NULL;
-	}
-
-	/* flush descriptors */
-	wmb();
-
-	ring->curr = 0;
-	ring->dirty = 0;
-}
-
-static void ag71xx_ring_rx_clean(struct ag71xx *ag)
-{
-	struct ag71xx_ring *ring = &ag->rx_ring;
-	int i;
-
-	if (!ring->buf)
-		return;
-
-	for (i = 0; i < ring->size; i++)
-		if (ring->buf[i].skb) {
-			dma_unmap_single(&ag->dev->dev, ring->buf[i].dma_addr,
-					 AG71XX_RX_PKT_SIZE, DMA_FROM_DEVICE);
-			kfree_skb(ring->buf[i].skb);
-		}
-}
-
-static int ag71xx_rx_reserve(struct ag71xx *ag)
-{
-	int reserve = 0;
-
-	if (ag71xx_get_pdata(ag)->is_ar724x) {
-		if (!ag71xx_has_ar8216(ag))
-			reserve = 2;
-
-		if (ag->phy_dev)
-			reserve += 4 - (ag->phy_dev->pkt_align % 4);
-
-		reserve %= 4;
-	}
-
-	return reserve + AG71XX_RX_PKT_RESERVE;
-}
-
-
-static int ag71xx_ring_rx_init(struct ag71xx *ag)
-{
-	struct ag71xx_ring *ring = &ag->rx_ring;
-	unsigned int reserve = ag71xx_rx_reserve(ag);
-	unsigned int i;
-	int ret;
-
-	ret = 0;
-	for (i = 0; i < ring->size; i++) {
-		ring->buf[i].desc->next = (u32) (ring->descs_dma +
-			ring->desc_size * ((i + 1) % ring->size));
-
-		DBG("ag71xx: RX desc at %p, next is %08x\n",
-			ring->buf[i].desc,
-			ring->buf[i].desc->next);
-	}
-
-	for (i = 0; i < ring->size; i++) {
-		struct sk_buff *skb;
-		dma_addr_t dma_addr;
-
-		skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE + reserve);
-		if (!skb) {
-			ret = -ENOMEM;
-			break;
-		}
-
-		skb->dev = ag->dev;
-		skb_reserve(skb, reserve);
-
-		dma_addr = dma_map_single(&ag->dev->dev, skb->data,
-					  AG71XX_RX_PKT_SIZE,
-					  DMA_FROM_DEVICE);
-		ring->buf[i].skb = skb;
-		ring->buf[i].dma_addr = dma_addr;
-		ring->buf[i].desc->data = (u32) dma_addr;
-		ring->buf[i].desc->ctrl = DESC_EMPTY;
-	}
-
-	/* flush descriptors */
-	wmb();
-
-	ring->curr = 0;
-	ring->dirty = 0;
-
-	return ret;
-}
-
-static int ag71xx_ring_rx_refill(struct ag71xx *ag)
-{
-	struct ag71xx_ring *ring = &ag->rx_ring;
-	unsigned int reserve = ag71xx_rx_reserve(ag);
-	unsigned int count;
-
-	count = 0;
-	for (; ring->curr - ring->dirty > 0; ring->dirty++) {
-		unsigned int i;
-
-		i = ring->dirty % ring->size;
-
-		if (ring->buf[i].skb == NULL) {
-			dma_addr_t dma_addr;
-			struct sk_buff *skb;
-
-			skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE + reserve);
-			if (skb == NULL)
-				break;
-
-			skb_reserve(skb, reserve);
-			skb->dev = ag->dev;
-
-			dma_addr = dma_map_single(&ag->dev->dev, skb->data,
-						  AG71XX_RX_PKT_SIZE,
-						  DMA_FROM_DEVICE);
-
-			ring->buf[i].skb = skb;
-			ring->buf[i].dma_addr = dma_addr;
-			ring->buf[i].desc->data = (u32) dma_addr;
-		}
-
-		ring->buf[i].desc->ctrl = DESC_EMPTY;
-		count++;
-	}
-
-	/* flush descriptors */
-	wmb();
-
-	DBG("%s: %u rx descriptors refilled\n", ag->dev->name, count);
-
-	return count;
-}
-
-static int ag71xx_rings_init(struct ag71xx *ag)
-{
-	int ret;
-
-	ret = ag71xx_ring_alloc(&ag->tx_ring);
-	if (ret)
-		return ret;
-
-	ag71xx_ring_tx_init(ag);
-
-	ret = ag71xx_ring_alloc(&ag->rx_ring);
-	if (ret)
-		return ret;
-
-	ret = ag71xx_ring_rx_init(ag);
-	return ret;
-}
-
-static void ag71xx_rings_cleanup(struct ag71xx *ag)
-{
-	ag71xx_ring_rx_clean(ag);
-	ag71xx_ring_free(&ag->rx_ring);
-
-	ag71xx_ring_tx_clean(ag);
-	ag71xx_ring_free(&ag->tx_ring);
-}
-
-static unsigned char *ag71xx_speed_str(struct ag71xx *ag)
-{
-	switch (ag->speed) {
-	case SPEED_1000:
-		return "1000";
-	case SPEED_100:
-		return "100";
-	case SPEED_10:
-		return "10";
-	}
-
-	return "?";
-}
-
-static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
-{
-	u32 t;
-
-	t = (((u32) mac[5]) << 24) | (((u32) mac[4]) << 16)
-	  | (((u32) mac[3]) << 8) | ((u32) mac[2]);
-
-	ag71xx_wr(ag, AG71XX_REG_MAC_ADDR1, t);
-
-	t = (((u32) mac[1]) << 24) | (((u32) mac[0]) << 16);
-	ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t);
-}
-
-static void ag71xx_dma_reset(struct ag71xx *ag)
-{
-	u32 val;
-	int i;
-
-	ag71xx_dump_dma_regs(ag);
-
-	/* stop RX and TX */
-	ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
-	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
-
-	/*
-	 * give the hardware some time to really stop all rx/tx activity
-	 * clearing the descriptors too early causes random memory corruption
-	 */
-	mdelay(1);
-
-	/* clear descriptor addresses */
-	ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->stop_desc_dma);
-	ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->stop_desc_dma);
-
-	/* clear pending RX/TX interrupts */
-	for (i = 0; i < 256; i++) {
-		ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
-		ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
-	}
-
-	/* clear pending errors */
-	ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE | RX_STATUS_OF);
-	ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE | TX_STATUS_UR);
-
-	val = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
-	if (val)
-		printk(KERN_ALERT "%s: unable to clear DMA Rx status: %08x\n",
-			ag->dev->name, val);
-
-	val = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
-
-	/* mask out reserved bits */
-	val &= ~0xff000000;
-
-	if (val)
-		printk(KERN_ALERT "%s: unable to clear DMA Tx status: %08x\n",
-			ag->dev->name, val);
-
-	ag71xx_dump_dma_regs(ag);
-}
-
-#define MAC_CFG1_INIT	(MAC_CFG1_RXE | MAC_CFG1_TXE | \
-			 MAC_CFG1_SRX | MAC_CFG1_STX)
-
-#define FIFO_CFG0_INIT	(FIFO_CFG0_ALL << FIFO_CFG0_ENABLE_SHIFT)
-
-#define FIFO_CFG4_INIT	(FIFO_CFG4_DE | FIFO_CFG4_DV | FIFO_CFG4_FC | \
-			 FIFO_CFG4_CE | FIFO_CFG4_CR | FIFO_CFG4_LM | \
-			 FIFO_CFG4_LO | FIFO_CFG4_OK | FIFO_CFG4_MC | \
-			 FIFO_CFG4_BC | FIFO_CFG4_DR | FIFO_CFG4_LE | \
-			 FIFO_CFG4_CF | FIFO_CFG4_PF | FIFO_CFG4_UO | \
-			 FIFO_CFG4_VT)
-
-#define FIFO_CFG5_INIT	(FIFO_CFG5_DE | FIFO_CFG5_DV | FIFO_CFG5_FC | \
-			 FIFO_CFG5_CE | FIFO_CFG5_LO | FIFO_CFG5_OK | \
-			 FIFO_CFG5_MC | FIFO_CFG5_BC | FIFO_CFG5_DR | \
-			 FIFO_CFG5_CF | FIFO_CFG5_PF | FIFO_CFG5_VT | \
-			 FIFO_CFG5_LE | FIFO_CFG5_FT | FIFO_CFG5_16 | \
-			 FIFO_CFG5_17 | FIFO_CFG5_SF)
-
-static void ag71xx_hw_stop(struct ag71xx *ag)
-{
-	/* disable all interrupts and stop the rx/tx engine */
-	ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, 0);
-	ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
-	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
-}
-
-static void ag71xx_hw_setup(struct ag71xx *ag)
-{
-	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
-
-	/* setup MAC configuration registers */
-	ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_INIT);
-
-	ag71xx_sb(ag, AG71XX_REG_MAC_CFG2,
-		  MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK);
-
-	/* setup max frame length */
-	ag71xx_wr(ag, AG71XX_REG_MAC_MFL, AG71XX_TX_MTU_LEN);
-
-	/* setup FIFO configuration registers */
-	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT);
-	if (pdata->is_ar724x) {
-		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, pdata->fifo_cfg1);
-		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, pdata->fifo_cfg2);
-	} else {
-		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000);
-		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff);
-	}
-	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, FIFO_CFG4_INIT);
-	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, FIFO_CFG5_INIT);
-}
-
-static void ag71xx_hw_init(struct ag71xx *ag)
-{
-	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
-	u32 reset_mask = pdata->reset_bit;
-
-	ag71xx_hw_stop(ag);
-
-	if (pdata->is_ar724x) {
-		u32 reset_phy = reset_mask;
-
-		reset_phy &= RESET_MODULE_GE0_PHY | RESET_MODULE_GE1_PHY;
-		reset_mask &= ~(RESET_MODULE_GE0_PHY | RESET_MODULE_GE1_PHY);
-
-		ar71xx_device_stop(reset_phy);
-		mdelay(50);
-		ar71xx_device_start(reset_phy);
-		mdelay(200);
-	}
-
-	ag71xx_sb(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_SR);
-	udelay(20);
-
-	ar71xx_device_stop(reset_mask);
-	mdelay(100);
-	ar71xx_device_start(reset_mask);
-	mdelay(200);
-
-	ag71xx_hw_setup(ag);
-
-	ag71xx_dma_reset(ag);
-}
-
-static void ag71xx_fast_reset(struct ag71xx *ag)
-{
-	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
-	struct net_device *dev = ag->dev;
-	u32 reset_mask = pdata->reset_bit;
-	u32 rx_ds, tx_ds;
-	u32 mii_reg;
-
-	reset_mask &= RESET_MODULE_GE0_MAC | RESET_MODULE_GE1_MAC;
-
-	mii_reg = ag71xx_rr(ag, AG71XX_REG_MII_CFG);
-	rx_ds = ag71xx_rr(ag, AG71XX_REG_RX_DESC);
-	tx_ds = ag71xx_rr(ag, AG71XX_REG_TX_DESC);
-
-	ar71xx_device_stop(reset_mask);
-	udelay(10);
-	ar71xx_device_start(reset_mask);
-	udelay(10);
-
-	ag71xx_dma_reset(ag);
-	ag71xx_hw_setup(ag);
-
-	ag71xx_wr(ag, AG71XX_REG_RX_DESC, rx_ds);
-	ag71xx_wr(ag, AG71XX_REG_TX_DESC, tx_ds);
-	ag71xx_wr(ag, AG71XX_REG_MII_CFG, mii_reg);
-
-	ag71xx_hw_set_macaddr(ag, dev->dev_addr);
-}
-
-static void ag71xx_hw_start(struct ag71xx *ag)
-{
-	/* start RX engine */
-	ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
-
-	/* enable interrupts */
-	ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, AG71XX_INT_INIT);
-}
-
-void ag71xx_link_adjust(struct ag71xx *ag)
-{
-	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
-	u32 cfg2;
-	u32 ifctl;
-	u32 fifo5;
-
-	if (!ag->link) {
-		ag71xx_hw_stop(ag);
-		netif_carrier_off(ag->dev);
-		if (netif_msg_link(ag))
-			printk(KERN_INFO "%s: link down\n", ag->dev->name);
-		return;
-	}
-
-	if (pdata->is_ar724x)
-		ag71xx_fast_reset(ag);
-
-	cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2);
-	cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX);
-	cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0;
-
-	ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL);
-	ifctl &= ~(MAC_IFCTL_SPEED);
-
-	fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5);
-	fifo5 &= ~FIFO_CFG5_BM;
-
-	switch (ag->speed) {
-	case SPEED_1000:
-		cfg2 |= MAC_CFG2_IF_1000;
-		fifo5 |= FIFO_CFG5_BM;
-		break;
-	case SPEED_100:
-		cfg2 |= MAC_CFG2_IF_10_100;
-		ifctl |= MAC_IFCTL_SPEED;
-		break;
-	case SPEED_10:
-		cfg2 |= MAC_CFG2_IF_10_100;
-		break;
-	default:
-		BUG();
-		return;
-	}
-
-	if (pdata->is_ar91xx)
-		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, 0x00780fff);
-	else if (pdata->is_ar724x)
-		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, pdata->fifo_cfg3);
-	else
-		ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, 0x008001ff);
-
-	if (pdata->set_speed)
-		pdata->set_speed(ag->speed);
-
-	ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
-	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
-	ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
-	ag71xx_hw_start(ag);
-
-	netif_carrier_on(ag->dev);
-	if (netif_msg_link(ag))
-		printk(KERN_INFO "%s: link up (%sMbps/%s duplex)\n",
-			ag->dev->name,
-			ag71xx_speed_str(ag),
-			(DUPLEX_FULL == ag->duplex) ? "Full" : "Half");
-
-	DBG("%s: fifo_cfg0=%#x, fifo_cfg1=%#x, fifo_cfg2=%#x\n",
-		ag->dev->name,
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0),
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1),
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2));
-
-	DBG("%s: fifo_cfg3=%#x, fifo_cfg4=%#x, fifo_cfg5=%#x\n",
-		ag->dev->name,
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3),
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4),
-		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5));
-
-	DBG("%s: mac_cfg2=%#x, mac_ifctl=%#x, mii_ctrl=%#x\n",
-		ag->dev->name,
-		ag71xx_rr(ag, AG71XX_REG_MAC_CFG2),
-		ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL),
-		ag71xx_mii_ctrl_rr(ag));
-}
-
-static int ag71xx_open(struct net_device *dev)
-{
-	struct ag71xx *ag = netdev_priv(dev);
-	int ret;
-
-	ret = ag71xx_rings_init(ag);
-	if (ret)
-		goto err;
-
-	napi_enable(&ag->napi);
-
-	netif_carrier_off(dev);
-	ag71xx_phy_start(ag);
-
-	ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma);
-	ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->rx_ring.descs_dma);
-
-	ag71xx_hw_set_macaddr(ag, dev->dev_addr);
-
-	netif_start_queue(dev);
-
-	return 0;
-
-err:
-	ag71xx_rings_cleanup(ag);
-	return ret;
-}
-
-static int ag71xx_stop(struct net_device *dev)
-{
-	struct ag71xx *ag = netdev_priv(dev);
-	unsigned long flags;
-
-	netif_carrier_off(dev);
-	ag71xx_phy_stop(ag);
-
-	spin_lock_irqsave(&ag->lock, flags);
-
-	netif_stop_queue(dev);
-
-	ag71xx_hw_stop(ag);
-	ag71xx_dma_reset(ag);
-
-	napi_disable(&ag->napi);
-	del_timer_sync(&ag->oom_timer);
-
-	spin_unlock_irqrestore(&ag->lock, flags);
-
-	ag71xx_rings_cleanup(ag);
-
-	return 0;
-}
-
-static netdev_tx_t ag71xx_hard_start_xmit(struct sk_buff *skb,
-					  struct net_device *dev)
-{
-	struct ag71xx *ag = netdev_priv(dev);
-	struct ag71xx_ring *ring = &ag->tx_ring;
-	struct ag71xx_desc *desc;
-	dma_addr_t dma_addr;
-	int i;
-
-	i = ring->curr % ring->size;
-	desc = ring->buf[i].desc;
-
-	if (!ag71xx_desc_empty(desc))
-		goto err_drop;
-
-	if (ag71xx_has_ar8216(ag))
-		ag71xx_add_ar8216_header(ag, skb);
-
-	if (skb->len <= 0) {
-		DBG("%s: packet len is too small\n", ag->dev->name);
-		goto err_drop;
-	}
-
-	dma_addr = dma_map_single(&dev->dev, skb->data, skb->len,
-				  DMA_TO_DEVICE);
-
-	ring->buf[i].skb = skb;
-	ring->buf[i].timestamp = jiffies;
-
-	/* setup descriptor fields */
-	desc->data = (u32) dma_addr;
-	desc->ctrl = (skb->len & DESC_PKTLEN_M);
-
-	/* flush descriptor */
-	wmb();
-
-	ring->curr++;
-	if (ring->curr == (ring->dirty + ring->size)) {
-		DBG("%s: tx queue full\n", ag->dev->name);
-		netif_stop_queue(dev);
-	}
-
-	DBG("%s: packet injected into TX queue\n", ag->dev->name);
-
-	/* enable TX engine */
-	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE);
-
-	return NETDEV_TX_OK;
-
-err_drop:
-	dev->stats.tx_dropped++;
-
-	dev_kfree_skb(skb);
-	return NETDEV_TX_OK;
-}
-
-static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
-	struct ag71xx *ag = netdev_priv(dev);
-	int ret;
-
-	switch (cmd) {
-	case SIOCETHTOOL:
-		if (ag->phy_dev == NULL)
-			break;
-
-		spin_lock_irq(&ag->lock);
-		ret = phy_ethtool_ioctl(ag->phy_dev, (void *) ifr->ifr_data);
-		spin_unlock_irq(&ag->lock);
-		return ret;
-
-	case SIOCSIFHWADDR:
-		if (copy_from_user
-			(dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr)))
-			return -EFAULT;
-		return 0;
-
-	case SIOCGIFHWADDR:
-		if (copy_to_user
-			(ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr)))
-			return -EFAULT;
-		return 0;
-
-	case SIOCGMIIPHY:
-	case SIOCGMIIREG:
-	case SIOCSMIIREG:
-		if (ag->phy_dev == NULL)
-			break;
-
-		return phy_mii_ioctl(ag->phy_dev, ifr, cmd);
-
-	default:
-		break;
-	}
-
-	return -EOPNOTSUPP;
-}
-
-static void ag71xx_oom_timer_handler(unsigned long data)
-{
-	struct net_device *dev = (struct net_device *) data;
-	struct ag71xx *ag = netdev_priv(dev);
-
-	napi_schedule(&ag->napi);
-}
-
-static void ag71xx_tx_timeout(struct net_device *dev)
-{
-	struct ag71xx *ag = netdev_priv(dev);
-
-	if (netif_msg_tx_err(ag))
-		printk(KERN_DEBUG "%s: tx timeout\n", ag->dev->name);
-
-	schedule_work(&ag->restart_work);
-}
-
-static void ag71xx_restart_work_func(struct work_struct *work)
-{
-	struct ag71xx *ag = container_of(work, struct ag71xx, restart_work);
-
-	if (ag71xx_get_pdata(ag)->is_ar724x) {
-		ag->link = 0;
-		ag71xx_link_adjust(ag);
-		return;
-	}
-
-	ag71xx_stop(ag->dev);
-	ag71xx_open(ag->dev);
-}
-
-static bool ag71xx_check_dma_stuck(struct ag71xx *ag, unsigned long timestamp)
-{
-	u32 rx_sm, tx_sm, rx_fd;
-
-	if (likely(time_before(jiffies, timestamp + HZ/10)))
-		return false;
-
-	if (!netif_carrier_ok(ag->dev))
-		return false;
-
-	rx_sm = ag71xx_rr(ag, AG71XX_REG_RX_SM);
-	if ((rx_sm & 0x7) == 0x3 && ((rx_sm >> 4) & 0x7) == 0x6)
-		return true;
-
-	tx_sm = ag71xx_rr(ag, AG71XX_REG_TX_SM);
-	rx_fd = ag71xx_rr(ag, AG71XX_REG_FIFO_DEPTH);
-	if (((tx_sm >> 4) & 0x7) == 0 && ((rx_sm & 0x7) == 0) &&
-	    ((rx_sm >> 4) & 0x7) == 0 && rx_fd == 0)
-		return true;
-
-	return false;
-}
-
-static int ag71xx_tx_packets(struct ag71xx *ag)
-{
-	struct ag71xx_ring *ring = &ag->tx_ring;
-	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
-	int sent;
-
-	DBG("%s: processing TX ring\n", ag->dev->name);
-
-	sent = 0;
-	while (ring->dirty != ring->curr) {
-		unsigned int i = ring->dirty % ring->size;
-		struct ag71xx_desc *desc = ring->buf[i].desc;
-		struct sk_buff *skb = ring->buf[i].skb;
-
-		if (!ag71xx_desc_empty(desc)) {
-			if (pdata->is_ar7240 &&
-			    ag71xx_check_dma_stuck(ag, ring->buf[i].timestamp))
-				schedule_work(&ag->restart_work);
-			break;
-		}
-
-		ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
-
-		ag->dev->stats.tx_bytes += skb->len;
-		ag->dev->stats.tx_packets++;
-
-		dev_kfree_skb_any(skb);
-		ring->buf[i].skb = NULL;
-
-		ring->dirty++;
-		sent++;
-	}
-
-	DBG("%s: %d packets sent out\n", ag->dev->name, sent);
-
-	if ((ring->curr - ring->dirty) < (ring->size * 3) / 4)
-		netif_wake_queue(ag->dev);
-
-	return sent;
-}
-
-static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
-{
-	struct net_device *dev = ag->dev;
-	struct ag71xx_ring *ring = &ag->rx_ring;
-	int done = 0;
-
-	DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n",
-			dev->name, limit, ring->curr, ring->dirty);
-
-	while (done < limit) {
-		unsigned int i = ring->curr % ring->size;
-		struct ag71xx_desc *desc = ring->buf[i].desc;
-		struct sk_buff *skb;
-		int pktlen;
-		int err = 0;
-
-		if (ag71xx_desc_empty(desc))
-			break;
-
-		if ((ring->dirty + ring->size) == ring->curr) {
-			ag71xx_assert(0);
-			break;
-		}
-
-		ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
-
-		skb = ring->buf[i].skb;
-		pktlen = ag71xx_desc_pktlen(desc);
-		pktlen -= ETH_FCS_LEN;
-
-		dma_unmap_single(&dev->dev, ring->buf[i].dma_addr,
-				 AG71XX_RX_PKT_SIZE, DMA_FROM_DEVICE);
-
-		dev->last_rx = jiffies;
-		dev->stats.rx_packets++;
-		dev->stats.rx_bytes += pktlen;
-
-		skb_put(skb, pktlen);
-		if (ag71xx_has_ar8216(ag))
-			err = ag71xx_remove_ar8216_header(ag, skb, pktlen);
-
-		if (err) {
-			dev->stats.rx_dropped++;
-			kfree_skb(skb);
-		} else {
-			skb->dev = dev;
-			skb->ip_summed = CHECKSUM_NONE;
-			if (ag->phy_dev) {
-				ag->phy_dev->netif_receive_skb(skb);
-			} else {
-				skb->protocol = eth_type_trans(skb, dev);
-				netif_receive_skb(skb);
-			}
-		}
-
-		ring->buf[i].skb = NULL;
-		done++;
-
-		ring->curr++;
-	}
-
-	ag71xx_ring_rx_refill(ag);
-
-	DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n",
-		dev->name, ring->curr, ring->dirty, done);
-
-	return done;
-}
-
-static int ag71xx_poll(struct napi_struct *napi, int limit)
-{
-	struct ag71xx *ag = container_of(napi, struct ag71xx, napi);
-	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
-	struct net_device *dev = ag->dev;
-	struct ag71xx_ring *rx_ring;
-	unsigned long flags;
-	u32 status;
-	int tx_done;
-	int rx_done;
-
-	pdata->ddr_flush();
-	tx_done = ag71xx_tx_packets(ag);
-
-	DBG("%s: processing RX ring\n", dev->name);
-	rx_done = ag71xx_rx_packets(ag, limit);
-
-	ag71xx_debugfs_update_napi_stats(ag, rx_done, tx_done);
-
-	rx_ring = &ag->rx_ring;
-	if (rx_ring->buf[rx_ring->dirty % rx_ring->size].skb == NULL)
-		goto oom;
-
-	status = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
-	if (unlikely(status & RX_STATUS_OF)) {
-		ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_OF);
-		dev->stats.rx_fifo_errors++;
-
-		/* restart RX */
-		ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
-	}
-
-	if (rx_done < limit) {
-		if (status & RX_STATUS_PR)
-			goto more;
-
-		status = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
-		if (status & TX_STATUS_PS)
-			goto more;
-
-		DBG("%s: disable polling mode, rx=%d, tx=%d,limit=%d\n",
-			dev->name, rx_done, tx_done, limit);
-
-		napi_complete(napi);
-
-		/* enable interrupts */
-		spin_lock_irqsave(&ag->lock, flags);
-		ag71xx_int_enable(ag, AG71XX_INT_POLL);
-		spin_unlock_irqrestore(&ag->lock, flags);
-		return rx_done;
-	}
-
-more:
-	DBG("%s: stay in polling mode, rx=%d, tx=%d, limit=%d\n",
-			dev->name, rx_done, tx_done, limit);
-	return rx_done;
-
-oom:
-	if (netif_msg_rx_err(ag))
-		printk(KERN_DEBUG "%s: out of memory\n", dev->name);
-
-	mod_timer(&ag->oom_timer, jiffies + AG71XX_OOM_REFILL);
-	napi_complete(napi);
-	return 0;
-}
-
-static irqreturn_t ag71xx_interrupt(int irq, void *dev_id)
-{
-	struct net_device *dev = dev_id;
-	struct ag71xx *ag = netdev_priv(dev);
-	u32 status;
-
-	status = ag71xx_rr(ag, AG71XX_REG_INT_STATUS);
-	ag71xx_dump_intr(ag, "raw", status);
-
-	if (unlikely(!status))
-		return IRQ_NONE;
-
-	if (unlikely(status & AG71XX_INT_ERR)) {
-		if (status & AG71XX_INT_TX_BE) {
-			ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE);
-			dev_err(&dev->dev, "TX BUS error\n");
-		}
-		if (status & AG71XX_INT_RX_BE) {
-			ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE);
-			dev_err(&dev->dev, "RX BUS error\n");
-		}
-	}
-
-	if (likely(status & AG71XX_INT_POLL)) {
-		ag71xx_int_disable(ag, AG71XX_INT_POLL);
-		DBG("%s: enable polling mode\n", dev->name);
-		napi_schedule(&ag->napi);
-	}
-
-	ag71xx_debugfs_update_int_stats(ag, status);
-
-	return IRQ_HANDLED;
-}
-
-static void ag71xx_set_multicast_list(struct net_device *dev)
-{
-	/* TODO */
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling 'interrupt' - used by things like netconsole to send skbs
- * without having to re-enable interrupts. It's not called while
- * the interrupt routine is executing.
- */
-static void ag71xx_netpoll(struct net_device *dev)
-{
-	disable_irq(dev->irq);
-	ag71xx_interrupt(dev->irq, dev);
-	enable_irq(dev->irq);
-}
-#endif
-
-static const struct net_device_ops ag71xx_netdev_ops = {
-	.ndo_open		= ag71xx_open,
-	.ndo_stop		= ag71xx_stop,
-	.ndo_start_xmit		= ag71xx_hard_start_xmit,
-	.ndo_set_multicast_list	= ag71xx_set_multicast_list,
-	.ndo_do_ioctl		= ag71xx_do_ioctl,
-	.ndo_tx_timeout		= ag71xx_tx_timeout,
-	.ndo_change_mtu		= eth_change_mtu,
-	.ndo_set_mac_address	= eth_mac_addr,
-	.ndo_validate_addr	= eth_validate_addr,
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	.ndo_poll_controller	= ag71xx_netpoll,
-#endif
-};
-
-static int __devinit ag71xx_probe(struct platform_device *pdev)
-{
-	struct net_device *dev;
-	struct resource *res;
-	struct ag71xx *ag;
-	struct ag71xx_platform_data *pdata;
-	int err;
-
-	pdata = pdev->dev.platform_data;
-	if (!pdata) {
-		dev_err(&pdev->dev, "no platform data specified\n");
-		err = -ENXIO;
-		goto err_out;
-	}
-
-	if (pdata->mii_bus_dev == NULL) {
-		dev_err(&pdev->dev, "no MII bus device specified\n");
-		err = -EINVAL;
-		goto err_out;
-	}
-
-	dev = alloc_etherdev(sizeof(*ag));
-	if (!dev) {
-		dev_err(&pdev->dev, "alloc_etherdev failed\n");
-		err = -ENOMEM;
-		goto err_out;
-	}
-
-	SET_NETDEV_DEV(dev, &pdev->dev);
-
-	ag = netdev_priv(dev);
-	ag->pdev = pdev;
-	ag->dev = dev;
-	ag->msg_enable = netif_msg_init(ag71xx_msg_level,
-					AG71XX_DEFAULT_MSG_ENABLE);
-	spin_lock_init(&ag->lock);
-
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base");
-	if (!res) {
-		dev_err(&pdev->dev, "no mac_base resource found\n");
-		err = -ENXIO;
-		goto err_out;
-	}
-
-	ag->mac_base = ioremap_nocache(res->start, res->end - res->start + 1);
-	if (!ag->mac_base) {
-		dev_err(&pdev->dev, "unable to ioremap mac_base\n");
-		err = -ENOMEM;
-		goto err_free_dev;
-	}
-
-	dev->irq = platform_get_irq(pdev, 0);
-	err = request_irq(dev->irq, ag71xx_interrupt,
-			  IRQF_DISABLED,
-			  dev->name, dev);
-	if (err) {
-		dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq);
-		goto err_unmap_base;
-	}
-
-	dev->base_addr = (unsigned long)ag->mac_base;
-	dev->netdev_ops = &ag71xx_netdev_ops;
-	dev->ethtool_ops = &ag71xx_ethtool_ops;
-
-	INIT_WORK(&ag->restart_work, ag71xx_restart_work_func);
-
-	init_timer(&ag->oom_timer);
-	ag->oom_timer.data = (unsigned long) dev;
-	ag->oom_timer.function = ag71xx_oom_timer_handler;
-
-	ag->tx_ring.size = AG71XX_TX_RING_SIZE_DEFAULT;
-	ag->rx_ring.size = AG71XX_RX_RING_SIZE_DEFAULT;
-
-	ag->stop_desc = dma_alloc_coherent(NULL,
-		sizeof(struct ag71xx_desc), &ag->stop_desc_dma, GFP_KERNEL);
-
-	if (!ag->stop_desc)
-		goto err_free_irq;
-
-	ag->stop_desc->data = 0;
-	ag->stop_desc->ctrl = 0;
-	ag->stop_desc->next = (u32) ag->stop_desc_dma;
-
-	memcpy(dev->dev_addr, pdata->mac_addr, ETH_ALEN);
-
-	netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
-
-	err = register_netdev(dev);
-	if (err) {
-		dev_err(&pdev->dev, "unable to register net device\n");
-		goto err_free_desc;
-	}
-
-	printk(KERN_INFO "%s: Atheros AG71xx at 0x%08lx, irq %d\n",
-	       dev->name, dev->base_addr, dev->irq);
-
-	ag71xx_dump_regs(ag);
-
-	ag71xx_hw_init(ag);
-
-	ag71xx_dump_regs(ag);
-
-	err = ag71xx_phy_connect(ag);
-	if (err)
-		goto err_unregister_netdev;
-
-	err = ag71xx_debugfs_init(ag);
-	if (err)
-		goto err_phy_disconnect;
-
-	platform_set_drvdata(pdev, dev);
-
-	return 0;
-
-err_phy_disconnect:
-	ag71xx_phy_disconnect(ag);
-err_unregister_netdev:
-	unregister_netdev(dev);
-err_free_desc:
-	dma_free_coherent(NULL, sizeof(struct ag71xx_desc), ag->stop_desc,
-			  ag->stop_desc_dma);
-err_free_irq:
-	free_irq(dev->irq, dev);
-err_unmap_base:
-	iounmap(ag->mac_base);
-err_free_dev:
-	kfree(dev);
-err_out:
-	platform_set_drvdata(pdev, NULL);
-	return err;
-}
-
-static int __devexit ag71xx_remove(struct platform_device *pdev)
-{
-	struct net_device *dev = platform_get_drvdata(pdev);
-
-	if (dev) {
-		struct ag71xx *ag = netdev_priv(dev);
-
-		ag71xx_debugfs_exit(ag);
-		ag71xx_phy_disconnect(ag);
-		unregister_netdev(dev);
-		free_irq(dev->irq, dev);
-		iounmap(ag->mac_base);
-		kfree(dev);
-		platform_set_drvdata(pdev, NULL);
-	}
-
-	return 0;
-}
-
-static struct platform_driver ag71xx_driver = {
-	.probe		= ag71xx_probe,
-	.remove		= __exit_p(ag71xx_remove),
-	.driver = {
-		.name	= AG71XX_DRV_NAME,
-	}
-};
-
-static int __init ag71xx_module_init(void)
-{
-	int ret;
-
-	ret = ag71xx_debugfs_root_init();
-	if (ret)
-		goto err_out;
-
-	ret = ag71xx_mdio_driver_init();
-	if (ret)
-		goto err_debugfs_exit;
-
-	ret = platform_driver_register(&ag71xx_driver);
-	if (ret)
-		goto err_mdio_exit;
-
-	return 0;
-
-err_mdio_exit:
-	ag71xx_mdio_driver_exit();
-err_debugfs_exit:
-	ag71xx_debugfs_root_exit();
-err_out:
-	return ret;
-}
-
-static void __exit ag71xx_module_exit(void)
-{
-	platform_driver_unregister(&ag71xx_driver);
-	ag71xx_mdio_driver_exit();
-	ag71xx_debugfs_root_exit();
-}
-
-module_init(ag71xx_module_init);
-module_exit(ag71xx_module_exit);
-
-MODULE_VERSION(AG71XX_DRV_VERSION);
-MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
-MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" AG71XX_DRV_NAME);