[AR7] Update kernel to 2.6.24

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10421 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 10 insertions, 1306 deletions

diff --git a/target/linux/ar7/Makefile b/target/linux/ar7/Makefile
index f1107ec3d3..abe32eb3e8 100644
--- a/target/linux/ar7/Makefile
+++ b/target/linux/ar7/Makefile
@@ -1,4 +1,4 @@
-# 
+ 
 # Copyright (C) 2006 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
@@ -11,7 +11,7 @@ BOARD:=ar7
 BOARDNAME:=TI AR7
 FEATURES:=squashfs jffs2 atm
 
-LINUX_VERSION:=2.6.23.1
+LINUX_VERSION:=2.6.24
 
 include $(INCLUDE_DIR)/target.mk
 
diff --git a/target/linux/ar7/config-2.6.24 b/target/linux/ar7/config-2.6.24
index e356ddc4a2..480a024397 100644
--- a/target/linux/ar7/config-2.6.24
+++ b/target/linux/ar7/config-2.6.24
@@ -15,8 +15,8 @@ CONFIG_BITREVERSE=y
 CONFIG_BOOT_ELF32=y
 # CONFIG_BROADCOM_PHY is not set
 # CONFIG_BT is not set
+CONFIG_CEVT_R4K=y
 CONFIG_CMDLINE="init=/etc/preinit rootfstype=squashfs,jffs2,"
-CONFIG_CPMAC=y
 # CONFIG_CPU_BIG_ENDIAN is not set
 CONFIG_CPU_HAS_LLSC=y
 CONFIG_CPU_HAS_PREFETCH=y
@@ -47,6 +47,7 @@ CONFIG_CPU_SUPPORTS_HIGHMEM=y
 # CONFIG_CPU_TX49XX is not set
 # CONFIG_CPU_VR41XX is not set
 # CONFIG_CRYPTO_HW is not set
+CONFIG_CSRC_R4K=y
 # CONFIG_DM9000 is not set
 CONFIG_DMA_NEED_PCI_MAP_STATE=y
 CONFIG_DMA_NONCOHERENT=y
@@ -151,7 +152,6 @@ CONFIG_PHYLIB=y
 CONFIG_RTC_LIB=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
-# CONFIG_SCSI_SRP_ATTRS is not set
 CONFIG_SCSI_WAIT_SCAN=m
 # CONFIG_SERIAL_8250_EXTENDED is not set
 # CONFIG_SGI_IP22 is not set
diff --git a/target/linux/ar7/files/drivers/net/cpmac.c b/target/linux/ar7/files/drivers/net/cpmac.c
deleted file mode 100644
index 4b6bfe1be6..0000000000
--- a/target/linux/ar7/files/drivers/net/cpmac.c
+++ /dev/null
@@ -1,1293 +0,0 @@
-/*
- * Copyright (C) 2006, 2007 OpenWrt.org
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/moduleparam.h>
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <linux/version.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/skbuff.h>
-#include <linux/mii.h>
-#include <linux/phy.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <asm/gpio.h>
-#include <asm/atomic.h>
-
-MODULE_AUTHOR("Eugene Konev <ejka@imfi.kspu.ru>");
-MODULE_DESCRIPTION("TI AR7 ethernet driver (CPMAC)");
-MODULE_LICENSE("GPL");
-
-static int debug_level = 8;
-static int dumb_switch;
-
-/* Next 2 are only used in cpmac_probe, so it's pointless to change them */
-module_param(debug_level, int, 0444);
-module_param(dumb_switch, int, 0444);
-
-MODULE_PARM_DESC(debug_level, "Number of NETIF_MSG bits to enable");
-MODULE_PARM_DESC(dumb_switch, "Assume switch is not connected to MDIO bus");
-
-#define CPMAC_VERSION "0.5.0"
-/* stolen from net/ieee80211.h */
-#ifndef MAC_FMT
-#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
-#define MAC_ARG(x) ((u8*)(x))[0], ((u8*)(x))[1], ((u8*)(x))[2], \
-		   ((u8*)(x))[3], ((u8*)(x))[4], ((u8*)(x))[5]
-#endif
-/* frame size + 802.1q tag */
-#define CPMAC_SKB_SIZE		(ETH_FRAME_LEN + 4)
-#define CPMAC_QUEUES	8
-
-/* Ethernet registers */
-#define CPMAC_TX_CONTROL		0x0004
-#define CPMAC_TX_TEARDOWN		0x0008
-#define CPMAC_RX_CONTROL		0x0014
-#define CPMAC_RX_TEARDOWN		0x0018
-#define CPMAC_MBP			0x0100
-# define MBP_RXPASSCRC			0x40000000
-# define MBP_RXQOS			0x20000000
-# define MBP_RXNOCHAIN			0x10000000
-# define MBP_RXCMF			0x01000000
-# define MBP_RXSHORT			0x00800000
-# define MBP_RXCEF			0x00400000
-# define MBP_RXPROMISC			0x00200000
-# define MBP_PROMISCCHAN(channel)	(((channel) & 0x7) << 16)
-# define MBP_RXBCAST			0x00002000
-# define MBP_BCASTCHAN(channel)		(((channel) & 0x7) << 8)
-# define MBP_RXMCAST			0x00000020
-# define MBP_MCASTCHAN(channel)		((channel) & 0x7)
-#define CPMAC_UNICAST_ENABLE		0x0104
-#define CPMAC_UNICAST_CLEAR		0x0108
-#define CPMAC_MAX_LENGTH		0x010c
-#define CPMAC_BUFFER_OFFSET		0x0110
-#define CPMAC_MAC_CONTROL		0x0160
-# define MAC_TXPTYPE			0x00000200
-# define MAC_TXPACE			0x00000040
-# define MAC_MII			0x00000020
-# define MAC_TXFLOW			0x00000010
-# define MAC_RXFLOW			0x00000008
-# define MAC_MTEST			0x00000004
-# define MAC_LOOPBACK			0x00000002
-# define MAC_FDX			0x00000001
-#define CPMAC_MAC_STATUS		0x0164
-# define MAC_STATUS_QOS			0x00000004
-# define MAC_STATUS_RXFLOW		0x00000002
-# define MAC_STATUS_TXFLOW		0x00000001
-#define CPMAC_TX_INT_ENABLE		0x0178
-#define CPMAC_TX_INT_CLEAR		0x017c
-#define CPMAC_MAC_INT_VECTOR		0x0180
-# define MAC_INT_STATUS			0x00080000
-# define MAC_INT_HOST			0x00040000
-# define MAC_INT_RX			0x00020000
-# define MAC_INT_TX			0x00010000
-#define CPMAC_MAC_EOI_VECTOR		0x0184
-#define CPMAC_RX_INT_ENABLE		0x0198
-#define CPMAC_RX_INT_CLEAR		0x019c
-#define CPMAC_MAC_INT_ENABLE		0x01a8
-#define CPMAC_MAC_INT_CLEAR		0x01ac
-#define CPMAC_MAC_ADDR_LO(channel) 	(0x01b0 + (channel) * 4)
-#define CPMAC_MAC_ADDR_MID		0x01d0
-#define CPMAC_MAC_ADDR_HI		0x01d4
-#define CPMAC_MAC_HASH_LO		0x01d8
-#define CPMAC_MAC_HASH_HI		0x01dc
-#define CPMAC_TX_PTR(channel)		(0x0600 + (channel) * 4)
-#define CPMAC_RX_PTR(channel)		(0x0620 + (channel) * 4)
-#define CPMAC_TX_ACK(channel)		(0x0640 + (channel) * 4)
-#define CPMAC_RX_ACK(channel)		(0x0660 + (channel) * 4)
-#define CPMAC_REG_END			0x0680
-/*
- * Rx/Tx statistics
- * TODO: use some of them to fill stats in cpmac_stats()
- */
-#define CPMAC_STATS_RX_GOOD		0x0200
-#define CPMAC_STATS_RX_BCAST		0x0204
-#define CPMAC_STATS_RX_MCAST		0x0208
-#define CPMAC_STATS_RX_PAUSE		0x020c
-#define CPMAC_STATS_RX_CRC		0x0210
-#define CPMAC_STATS_RX_ALIGN		0x0214
-#define CPMAC_STATS_RX_OVER		0x0218
-#define CPMAC_STATS_RX_JABBER		0x021c
-#define CPMAC_STATS_RX_UNDER		0x0220
-#define CPMAC_STATS_RX_FRAG		0x0224
-#define CPMAC_STATS_RX_FILTER		0x0228
-#define CPMAC_STATS_RX_QOSFILTER	0x022c
-#define CPMAC_STATS_RX_OCTETS		0x0230
-
-#define CPMAC_STATS_TX_GOOD		0x0234
-#define CPMAC_STATS_TX_BCAST		0x0238
-#define CPMAC_STATS_TX_MCAST		0x023c
-#define CPMAC_STATS_TX_PAUSE		0x0240
-#define CPMAC_STATS_TX_DEFER		0x0244
-#define CPMAC_STATS_TX_COLLISION	0x0248
-#define CPMAC_STATS_TX_SINGLECOLL	0x024c
-#define CPMAC_STATS_TX_MULTICOLL	0x0250
-#define CPMAC_STATS_TX_EXCESSCOLL	0x0254
-#define CPMAC_STATS_TX_LATECOLL		0x0258
-#define CPMAC_STATS_TX_UNDERRUN		0x025c
-#define CPMAC_STATS_TX_CARRIERSENSE	0x0260
-#define CPMAC_STATS_TX_OCTETS		0x0264
-
-#define cpmac_read(base, reg)		(readl((void __iomem *)(base) + (reg)))
-#define cpmac_write(base, reg, val)	(writel(val, (void __iomem *)(base) + \
-						(reg)))
-
-/* MDIO bus */
-#define CPMAC_MDIO_VERSION		0x0000
-#define CPMAC_MDIO_CONTROL		0x0004
-# define MDIOC_IDLE			0x80000000
-# define MDIOC_ENABLE			0x40000000
-# define MDIOC_PREAMBLE			0x00100000
-# define MDIOC_FAULT			0x00080000
-# define MDIOC_FAULTDETECT		0x00040000
-# define MDIOC_INTTEST			0x00020000
-# define MDIOC_CLKDIV(div)		((div) & 0xff)
-#define CPMAC_MDIO_ALIVE		0x0008
-#define CPMAC_MDIO_LINK			0x000c
-#define CPMAC_MDIO_ACCESS(channel)	(0x0080 + (channel) * 8)
-# define MDIO_BUSY			0x80000000
-# define MDIO_WRITE			0x40000000
-# define MDIO_REG(reg)			(((reg) & 0x1f) << 21)
-# define MDIO_PHY(phy)			(((phy) & 0x1f) << 16)
-# define MDIO_DATA(data)		((data) & 0xffff)
-#define CPMAC_MDIO_PHYSEL(channel)	(0x0084 + (channel) * 8)
-# define PHYSEL_LINKSEL			0x00000040
-# define PHYSEL_LINKINT			0x00000020
-
-struct cpmac_desc {
-	u32 hw_next;
-	u32 hw_data;
-	u16 buflen;
-	u16 bufflags;
-	u16 datalen;
-	u16 dataflags;
-#define CPMAC_SOP			0x8000
-#define CPMAC_EOP			0x4000
-#define CPMAC_OWN			0x2000
-#define CPMAC_EOQ			0x1000
-	struct sk_buff *skb;
-	struct cpmac_desc *next;
-	struct cpmac_desc *prev;
-	dma_addr_t mapping;
-	dma_addr_t data_mapping;
-};
-
-struct cpmac_priv {
-	spinlock_t lock;
-	spinlock_t rx_lock;
-	struct cpmac_desc *rx_head;
-	int ring_size;
-	struct cpmac_desc *desc_ring;
-	dma_addr_t dma_ring;
-	void __iomem *regs;
-	struct mii_bus *mii_bus;
-	struct phy_device *phy;
-	char phy_name[BUS_ID_SIZE];
-	int oldlink, oldspeed, oldduplex;
-	u32 msg_enable;
-	struct net_device *dev;
-	struct work_struct reset_work;
-	struct platform_device *pdev;
-	atomic_t reset_pending;
-};
-
-static irqreturn_t cpmac_irq(int, void *);
-static void cpmac_hw_start(struct net_device *dev);
-static void cpmac_hw_stop(struct net_device *dev);
-static int cpmac_stop(struct net_device *dev);
-static int cpmac_open(struct net_device *dev);
-
-static void cpmac_dump_regs(struct net_device *dev)
-{
-	int i;
-	struct cpmac_priv *priv = netdev_priv(dev);
-	for (i = 0; i < CPMAC_REG_END; i += 4) {
-		if (i % 16 == 0) {
-			if (i)
-				printk("\n");
-			printk(KERN_DEBUG "%s: reg[%p]:", dev->name,
-			       priv->regs + i);
-		}
-		printk(" %08x", cpmac_read(priv->regs, i));
-	}
-	printk("\n");
-}
-
-static void cpmac_dump_desc(struct net_device *dev, struct cpmac_desc *desc)
-{
-	int i;
-	printk(KERN_DEBUG "%s: desc[%p]:", dev->name, desc);
-	for (i = 0; i < sizeof(*desc) / 4; i++)
-		printk(" %08x", ((u32 *)desc)[i]);
-	printk("\n");
-}
-
-static void cpmac_dump_all_desc(struct net_device *dev)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-	struct cpmac_desc *dump = priv->rx_head;
-	do {
-		cpmac_dump_desc(dev, dump);
-		dump = dump->next;
-	} while (dump != priv->rx_head);
-}
-
-static void cpmac_dump_skb(struct net_device *dev, struct sk_buff *skb)
-{
-	int i;
-	printk(KERN_DEBUG "%s: skb 0x%p, len=%d\n", dev->name, skb, skb->len);
-	for (i = 0; i < skb->len; i++) {
-		if (i % 16 == 0) {
-			if (i)
-				printk("\n");
-			printk(KERN_DEBUG "%s: data[%p]:", dev->name,
-			       skb->data + i);
-		}
-		printk(" %02x", ((u8 *)skb->data)[i]);
-	}
-	printk("\n");
-}
-
-static int cpmac_mdio_read(struct mii_bus *bus, int phy_id, int reg)
-{
-	u32 val;
-
-	while (cpmac_read(bus->priv, CPMAC_MDIO_ACCESS(0)) & MDIO_BUSY)
-		cpu_relax();
-	cpmac_write(bus->priv, CPMAC_MDIO_ACCESS(0), MDIO_BUSY | MDIO_REG(reg) |
-		    MDIO_PHY(phy_id));
-	while ((val = cpmac_read(bus->priv, CPMAC_MDIO_ACCESS(0))) & MDIO_BUSY)
-		cpu_relax();
-	return MDIO_DATA(val);
-}
-
-static int cpmac_mdio_write(struct mii_bus *bus, int phy_id,
-			    int reg, u16 val)
-{
-	while (cpmac_read(bus->priv, CPMAC_MDIO_ACCESS(0)) & MDIO_BUSY)
-		cpu_relax();
-	cpmac_write(bus->priv, CPMAC_MDIO_ACCESS(0), MDIO_BUSY | MDIO_WRITE |
-		    MDIO_REG(reg) | MDIO_PHY(phy_id) | MDIO_DATA(val));
-	return 0;
-}
-
-static int cpmac_mdio_reset(struct mii_bus *bus)
-{
-	ar7_device_reset(AR7_RESET_BIT_MDIO);
-	cpmac_write(bus->priv, CPMAC_MDIO_CONTROL, MDIOC_ENABLE |
-		    MDIOC_CLKDIV(ar7_cpmac_freq() / 2200000 - 1));
-	return 0;
-}
-
-static int mii_irqs[PHY_MAX_ADDR] = { PHY_POLL, };
-
-static struct mii_bus cpmac_mii = {
-	.name = "cpmac-mii",
-	.read = cpmac_mdio_read,
-	.write = cpmac_mdio_write,
-	.reset = cpmac_mdio_reset,
-	.irq = mii_irqs,
-};
-
-static int cpmac_config(struct net_device *dev, struct ifmap *map)
-{
-	if (dev->flags & IFF_UP)
-		return -EBUSY;
-
-	/* Don't allow changing the I/O address */
-	if (map->base_addr != dev->base_addr)
-		return -EOPNOTSUPP;
-
-	/* ignore other fields */
-	return 0;
-}
-
-static void cpmac_set_multicast_list(struct net_device *dev)
-{
-	struct dev_mc_list *iter;
-	int i;
-	u8 tmp;
-	u32 mbp, bit, hash[2] = { 0, };
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	mbp = cpmac_read(priv->regs, CPMAC_MBP);
-	if (dev->flags & IFF_PROMISC) {
-		cpmac_write(priv->regs, CPMAC_MBP, (mbp & ~MBP_PROMISCCHAN(0)) |
-			    MBP_RXPROMISC);
-	} else {
-		cpmac_write(priv->regs, CPMAC_MBP, mbp & ~MBP_RXPROMISC);
-		if (dev->flags & IFF_ALLMULTI) {
-			/* enable all multicast mode */
-			cpmac_write(priv->regs, CPMAC_MAC_HASH_LO, 0xffffffff);
-			cpmac_write(priv->regs, CPMAC_MAC_HASH_HI, 0xffffffff);
-		} else {
-			/*
-			 * cpmac uses some strange mac address hashing
-			 * (not crc32)
-			 */
-			for (i = 0, iter = dev->mc_list; i < dev->mc_count;
-			     i++, iter = iter->next) {
-				bit = 0;
-				tmp = iter->dmi_addr[0];
-				bit  ^= (tmp >> 2) ^ (tmp << 4);
-				tmp = iter->dmi_addr[1];
-				bit  ^= (tmp >> 4) ^ (tmp << 2);
-				tmp = iter->dmi_addr[2];
-				bit  ^= (tmp >> 6) ^ tmp;
-				tmp = iter->dmi_addr[3];
-				bit  ^= (tmp >> 2) ^ (tmp << 4);
-				tmp = iter->dmi_addr[4];
-				bit  ^= (tmp >> 4) ^ (tmp << 2);
-				tmp = iter->dmi_addr[5];
-				bit  ^= (tmp >> 6) ^ tmp;
-				bit &= 0x3f;
-				hash[bit / 32] |= 1 << (bit % 32);
-			}
-
-			cpmac_write(priv->regs, CPMAC_MAC_HASH_LO, hash[0]);
-			cpmac_write(priv->regs, CPMAC_MAC_HASH_HI, hash[1]);
-		}
-	}
-}
-
-static struct sk_buff *cpmac_rx_one(struct net_device *dev,
-				    struct cpmac_priv *priv,
-				    struct cpmac_desc *desc)
-{
-	struct sk_buff *skb, *result = NULL;
-
-	if (unlikely(netif_msg_hw(priv)))
-		cpmac_dump_desc(dev, desc);
-	cpmac_write(priv->regs, CPMAC_RX_ACK(0), (u32)desc->mapping);
-	if (unlikely(!desc->datalen)) {
-		if (netif_msg_rx_err(priv) && net_ratelimit())
-			printk(KERN_WARNING "%s: rx: spurious interrupt\n",
-			       dev->name);
-		return NULL;
-	}
-
-	skb = netdev_alloc_skb(dev, CPMAC_SKB_SIZE);
-	if (likely(skb)) {
-		skb_reserve(skb, 2);
-		skb_put(desc->skb, desc->datalen);
-		desc->skb->protocol = eth_type_trans(desc->skb, dev);
-		desc->skb->ip_summed = CHECKSUM_NONE;
-		dev->stats.rx_packets++;
-		dev->stats.rx_bytes += desc->datalen;
-		result = desc->skb;
-		dma_unmap_single(&dev->dev, desc->data_mapping, CPMAC_SKB_SIZE,
-				 DMA_FROM_DEVICE);
-		desc->skb = skb;
-		desc->data_mapping = dma_map_single(&dev->dev, skb->data,
-						    CPMAC_SKB_SIZE,
-						    DMA_FROM_DEVICE);
-		desc->hw_data = (u32)desc->data_mapping;
-		if (unlikely(netif_msg_pktdata(priv))) {
-			printk(KERN_DEBUG "%s: received packet:\n", dev->name);
-			cpmac_dump_skb(dev, result);
-		}
-	} else {
-		if (netif_msg_rx_err(priv) && net_ratelimit())
-			printk(KERN_WARNING
-			       "%s: low on skbs, dropping packet\n", dev->name);
-		dev->stats.rx_dropped++;
-	}
-
-	desc->buflen = CPMAC_SKB_SIZE;
-	desc->dataflags = CPMAC_OWN;
-
-	return result;
-}
-
-static int cpmac_poll(struct net_device *dev, int *budget)
-{
-	struct sk_buff *skb;
-	struct cpmac_desc *desc, *restart;
-	int received = 0, processed = 0, quota = min(dev->quota, *budget);
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	spin_lock(&priv->rx_lock);
-	if (unlikely(!priv->rx_head)) {
-		if (netif_msg_rx_err(priv) && net_ratelimit())
-			printk(KERN_WARNING "%s: rx: polling, but no queue\n",
-			       dev->name);
-		spin_unlock(&priv->rx_lock);
-		netif_rx_complete(dev);
-		return 0;
-	}
-
-	desc = priv->rx_head;
-	restart = NULL;
-	while ((received < quota) && ((desc->dataflags & CPMAC_OWN) == 0)) {
-		processed++;
-
-		if ((desc->dataflags & CPMAC_EOQ) != 0) {
-			/* The last update to eoq->hw_next didn't happen soon enough, and the
-			 * receiver stopped here. Remember this descriptor so we can restart
-			 * the receiver after freeing some space.
-			 */
-			if (unlikely(restart)) {
-				if (netif_msg_rx_err(priv))
-					printk(KERN_ERR "%s: poll found a duplicate EOQ: %p and %p\n",
-					       dev->name, restart, desc);
-				goto fatal_error;
-			}
-
-			restart = desc->next;
-		}
-			
-		skb = cpmac_rx_one(dev, priv, desc);
-		if (likely(skb)) {
-			netif_receive_skb(skb);
-			received++;
-		}
-		desc = desc->next;
-	}
-	
-	if (desc != priv->rx_head) {
-		/* We freed some buffers, but not the whole ring, add what we did free to the rx list */
-		desc->prev->hw_next = (u32)0;
-		priv->rx_head->prev->hw_next = priv->rx_head->mapping;
-	}
-	
-	/* Optimization: If we did not actually process an EOQ (perhaps because of
-	 * quota limits), check to see if the tail of the queue has EOQ set. We
-	 * should immediately restart in that case so that the receiver can restart
-	 * and run in parallel with more packet processing. This lets us handle slightly
-	 * larger bursts before running out of ring space (assuming dev->weight < ring_size)
-	 */
-	if (!restart && 
-	    (priv->rx_head->prev->dataflags & (CPMAC_OWN|CPMAC_EOQ)) == CPMAC_EOQ &&
-	    (priv->rx_head->dataflags & CPMAC_OWN) != 0) {
-		/* reset EOQ so the poll loop (above) doesn't try to restart this when it
-		 * eventually gets to this descriptor.
-		 */
-		priv->rx_head->prev->dataflags &= ~CPMAC_EOQ;
-		restart = priv->rx_head;
-	}
-
-	if (restart) {
-		dev->stats.rx_errors++;
-		dev->stats.rx_fifo_errors++;
-		if (netif_msg_rx_err(priv) && net_ratelimit())
-			printk(KERN_WARNING "%s: rx dma ring overrun\n", dev->name);
-		
-		if (unlikely((restart->dataflags & CPMAC_OWN) == 0)) {
-			if (netif_msg_drv(priv))
-				printk(KERN_ERR "%s: cpmac_poll is trying to restart rx from a descriptor that's not free: %p\n",
-				       dev->name, restart);
-			goto fatal_error;
-		}
-
-		cpmac_write(priv->regs, CPMAC_RX_PTR(0), restart->mapping);
-	}
-
-	priv->rx_head = desc;
-	spin_unlock(&priv->rx_lock);
-	*budget -= received;
-	dev->quota -= received;
-	if (unlikely(netif_msg_rx_status(priv)))
-		printk(KERN_DEBUG "%s: poll processed %d packets\n", dev->name,
-		       received);
-	
-	if (processed == 0) {
-		/* we ran out of packets to read, revert to interrupt-driven mode */
-		netif_rx_complete(dev);
-		cpmac_write(priv->regs, CPMAC_RX_INT_ENABLE, 1);
-		return 0;
-	}
-
-	return 1;
-
-fatal_error:
-	/* Something went horribly wrong. Reset hardware to try to recover rather than wedging. */
-
-	if (netif_msg_drv(priv)) {
-		printk(KERN_ERR "%s: cpmac_poll is confused. Resetting hardware\n", dev->name);
-		cpmac_dump_all_desc(dev);
-		printk(KERN_DEBUG "%s: RX_PTR(0)=0x%08x RX_ACK(0)=0x%08x\n",
-		       dev->name,
-		       cpmac_read(priv->regs, CPMAC_RX_PTR(0)),
-		       cpmac_read(priv->regs, CPMAC_RX_ACK(0)));
-	}
-
-	spin_unlock(&priv->rx_lock);
-	netif_rx_complete(dev);
-	netif_stop_queue(dev);
-
-	atomic_inc(&priv->reset_pending);
-	cpmac_hw_stop(dev);
-	if (!schedule_work(&priv->reset_work))
-		atomic_dec(&priv->reset_pending);
-	return 0;
-}
-
-static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	int queue, len;
-	struct cpmac_desc *desc;
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	if (unlikely(atomic_read(&priv->reset_pending)))
-		return NETDEV_TX_BUSY;
-
-	if (unlikely(skb_padto(skb, ETH_ZLEN)))
-		return NETDEV_TX_OK;
-
-	len = max(skb->len, ETH_ZLEN);
-	queue = skb->queue_mapping;
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
-	netif_stop_subqueue(dev, queue);
-#else
-	netif_stop_queue(dev);
-#endif
-
-	desc = &priv->desc_ring[queue];
-	if (unlikely(desc->dataflags & CPMAC_OWN)) {
-		if (netif_msg_tx_err(priv) && net_ratelimit())
-			printk(KERN_WARNING "%s: tx dma ring full\n",
-			       dev->name);
-		return NETDEV_TX_BUSY;
-	}
-
-	spin_lock(&priv->lock);
-	dev->trans_start = jiffies;
-	spin_unlock(&priv->lock);
-	desc->dataflags = CPMAC_SOP | CPMAC_EOP | CPMAC_OWN;
-	desc->skb = skb;
-	desc->data_mapping = dma_map_single(&dev->dev, skb->data, len,
-					    DMA_TO_DEVICE);
-	desc->hw_data = (u32)desc->data_mapping;
-	desc->datalen = len;
-	desc->buflen = len;
-	if (unlikely(netif_msg_tx_queued(priv)))
-		printk(KERN_DEBUG "%s: sending 0x%p, len=%d\n", dev->name, skb,
-		       skb->len);
-	if (unlikely(netif_msg_hw(priv)))
-		cpmac_dump_desc(dev, desc);
-	if (unlikely(netif_msg_pktdata(priv)))
-		cpmac_dump_skb(dev, skb);
-	cpmac_write(priv->regs, CPMAC_TX_PTR(queue), (u32)desc->mapping);
-
-	return NETDEV_TX_OK;
-}
-
-static void cpmac_end_xmit(struct net_device *dev, int queue)
-{
-	struct cpmac_desc *desc;
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	desc = &priv->desc_ring[queue];
-	cpmac_write(priv->regs, CPMAC_TX_ACK(queue), (u32)desc->mapping);
-	if (likely(desc->skb)) {
-		spin_lock(&priv->lock);
-		dev->stats.tx_packets++;
-		dev->stats.tx_bytes += desc->skb->len;
-		spin_unlock(&priv->lock);
-		dma_unmap_single(&dev->dev, desc->data_mapping, desc->skb->len,
-				 DMA_TO_DEVICE);
-
-		if (unlikely(netif_msg_tx_done(priv)))
-			printk(KERN_DEBUG "%s: sent 0x%p, len=%d\n", dev->name,
-			       desc->skb, desc->skb->len);
-
-		dev_kfree_skb_irq(desc->skb);
-		desc->skb = NULL;
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
-		if (netif_subqueue_stopped(dev, queue))
-			netif_wake_subqueue(dev, queue);
-#else
-		if (netif_queue_stopped(dev))
-			netif_wake_queue(dev);
-#endif
-	} else {
-		if (netif_msg_tx_err(priv) && net_ratelimit())
-			printk(KERN_WARNING
-			       "%s: end_xmit: spurious interrupt\n", dev->name);
-#ifdef CONFIG_NETDEVICES_MULTIQUEUE
-		if (netif_subqueue_stopped(dev, queue))
-			netif_wake_subqueue(dev, queue);
-#else
-		if (netif_queue_stopped(dev))
-			netif_wake_queue(dev);
-#endif
-	}
-}
-
-static void cpmac_hw_stop(struct net_device *dev)
-{
-	int i;
-	struct cpmac_priv *priv = netdev_priv(dev);
-	struct plat_cpmac_data *pdata = priv->pdev->dev.platform_data;
-
-	ar7_device_reset(pdata->reset_bit);
-	cpmac_write(priv->regs, CPMAC_RX_CONTROL,
-		    cpmac_read(priv->regs, CPMAC_RX_CONTROL) & ~1);
-	cpmac_write(priv->regs, CPMAC_TX_CONTROL,
-		    cpmac_read(priv->regs, CPMAC_TX_CONTROL) & ~1);
-	for (i = 0; i < 8; i++) {
-		cpmac_write(priv->regs, CPMAC_TX_PTR(i), 0);
-		cpmac_write(priv->regs, CPMAC_RX_PTR(i), 0);
-	}
-	cpmac_write(priv->regs, CPMAC_UNICAST_CLEAR, 0xff);
-	cpmac_write(priv->regs, CPMAC_RX_INT_CLEAR, 0xff);
-	cpmac_write(priv->regs, CPMAC_TX_INT_CLEAR, 0xff);
-	cpmac_write(priv->regs, CPMAC_MAC_INT_CLEAR, 0xff);
-	cpmac_write(priv->regs, CPMAC_MAC_CONTROL,
-		    cpmac_read(priv->regs, CPMAC_MAC_CONTROL) & ~MAC_MII);
-}
-
-static void cpmac_hw_start(struct net_device *dev)
-{
-	int i;
-	struct cpmac_priv *priv = netdev_priv(dev);
-	struct plat_cpmac_data *pdata = priv->pdev->dev.platform_data;
-
-	ar7_device_reset(pdata->reset_bit);
-	for (i = 0; i < 8; i++) {
-		cpmac_write(priv->regs, CPMAC_TX_PTR(i), 0);
-		cpmac_write(priv->regs, CPMAC_RX_PTR(i), 0);
-	}
-	cpmac_write(priv->regs, CPMAC_RX_PTR(0), priv->rx_head->mapping);
-
-	cpmac_write(priv->regs, CPMAC_MBP, MBP_RXSHORT | MBP_RXBCAST |
-		    MBP_RXMCAST);
-	cpmac_write(priv->regs, CPMAC_BUFFER_OFFSET, 0);
-	for (i = 0; i < 8; i++)
-		cpmac_write(priv->regs, CPMAC_MAC_ADDR_LO(i), dev->dev_addr[5]);
-	cpmac_write(priv->regs, CPMAC_MAC_ADDR_MID, dev->dev_addr[4]);
-	cpmac_write(priv->regs, CPMAC_MAC_ADDR_HI, dev->dev_addr[0] |
-		    (dev->dev_addr[1] << 8) | (dev->dev_addr[2] << 16) |
-		    (dev->dev_addr[3] << 24));
-	cpmac_write(priv->regs, CPMAC_MAX_LENGTH, CPMAC_SKB_SIZE);
-	cpmac_write(priv->regs, CPMAC_UNICAST_CLEAR, 0xff);
-	cpmac_write(priv->regs, CPMAC_RX_INT_CLEAR, 0xff);
-	cpmac_write(priv->regs, CPMAC_TX_INT_CLEAR, 0xff);
-	cpmac_write(priv->regs, CPMAC_MAC_INT_CLEAR, 0xff);
-	cpmac_write(priv->regs, CPMAC_UNICAST_ENABLE, 1);
-	cpmac_write(priv->regs, CPMAC_RX_INT_ENABLE, 1);
-	cpmac_write(priv->regs, CPMAC_TX_INT_ENABLE, 0xff);
-	cpmac_write(priv->regs, CPMAC_MAC_INT_ENABLE, 3);
-
-	cpmac_write(priv->regs, CPMAC_RX_CONTROL,
-		    cpmac_read(priv->regs, CPMAC_RX_CONTROL) | 1);
-	cpmac_write(priv->regs, CPMAC_TX_CONTROL,
-		    cpmac_read(priv->regs, CPMAC_TX_CONTROL) | 1);
-	cpmac_write(priv->regs, CPMAC_MAC_CONTROL,
-		    cpmac_read(priv->regs, CPMAC_MAC_CONTROL) | MAC_MII |
-		    MAC_FDX);
-}
-
-static void cpmac_clear_rx(struct net_device *dev)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-	struct cpmac_desc *desc;
-	int i;
-	if (unlikely(!priv->rx_head))
-		return;
-	desc = priv->rx_head;
-	for (i = 0; i < priv->ring_size; i++) {
-		if ((desc->dataflags & CPMAC_OWN) == 0) {
-			if (netif_msg_rx_err(priv) && net_ratelimit())
-				printk(KERN_WARNING "%s: packet dropped\n",
-				       dev->name);
-			if (unlikely(netif_msg_hw(priv)))
-				cpmac_dump_desc(dev, desc);
-			desc->dataflags = CPMAC_OWN;
-			dev->stats.rx_dropped++;
-		}
-		desc->hw_next = desc->next->mapping;
-		desc = desc->next;
-	}
-
-	priv->rx_head->prev->hw_next = 0;
-}
-
-static void cpmac_clear_tx(struct net_device *dev)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-	int i;
-	if (unlikely(!priv->desc_ring))
-		return;
-	for (i = 0; i < CPMAC_QUEUES; i++) {
-		priv->desc_ring[i].dataflags = 0;
-		if (priv->desc_ring[i].skb) {
-			dev_kfree_skb_any(priv->desc_ring[i].skb);
-			priv->desc_ring[i].skb = NULL;
-		}
-	}
-}
-
-static void cpmac_hw_error(struct work_struct *work)
-{
-	int i;
-	struct cpmac_priv *priv =
-		container_of(work, struct cpmac_priv, reset_work);
-
-	spin_lock(&priv->rx_lock);
-	cpmac_clear_rx(priv->dev);
-	spin_unlock(&priv->rx_lock);
-	cpmac_clear_tx(priv->dev);
-	cpmac_hw_start(priv->dev);
-	barrier();
-	atomic_dec(&priv->reset_pending);
-	
-	for (i = 0; i < CPMAC_QUEUES; i++) {
-		netif_wake_subqueue(priv->dev, i);
-	}
-	netif_wake_queue(priv->dev);
-}
-
-static void cpmac_check_status(struct net_device *dev)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	u32 macstatus = cpmac_read(priv->regs, CPMAC_MAC_STATUS);
-	int rx_channel = (macstatus >> 8) & 7;
-	int rx_code = (macstatus >> 12) & 15;
-	int tx_channel = (macstatus >> 16) & 7;
-	int tx_code = (macstatus >> 20) & 15;
-
-	if (rx_code || tx_code) {
-		if (netif_msg_drv(priv) && net_ratelimit()) {
-			/* Can't find any documentation on what these error codes actually are.
-			 * So just log them and hope..
-			 */
-			if (rx_code)
-				printk(KERN_WARNING "%s: host error %d on rx channel %d (macstatus %08x), resetting\n",
-				       dev->name, rx_code, rx_channel, macstatus);
-			if (tx_code)
-				printk(KERN_WARNING "%s: host error %d on tx channel %d (macstatus %08x), resetting\n",
-				       dev->name, tx_code, tx_channel, macstatus);
-		}
-		
-		netif_stop_queue(dev);
-		cpmac_hw_stop(dev);
-		if (schedule_work(&priv->reset_work))
-			atomic_inc(&priv->reset_pending);			
-		if (unlikely(netif_msg_hw(priv)))
-			cpmac_dump_regs(dev);
-	}
-}
-
-static irqreturn_t cpmac_irq(int irq, void *dev_id)
-{
-	struct net_device *dev = dev_id;
-	struct cpmac_priv *priv;
-	int queue;
-	u32 status;
-
-	if (!dev)
-		return IRQ_NONE;
-
-	priv = netdev_priv(dev);
-
-	status = cpmac_read(priv->regs, CPMAC_MAC_INT_VECTOR);
-
-	if (unlikely(netif_msg_intr(priv)))
-		printk(KERN_DEBUG "%s: interrupt status: 0x%08x\n", dev->name,
-		       status);
-
-	if (status & MAC_INT_TX)
-		cpmac_end_xmit(dev, (status & 7));
-
-	if (status & MAC_INT_RX) {
-		queue = (status >> 8) & 7;
-		netif_rx_schedule(dev);
-		cpmac_write(priv->regs, CPMAC_RX_INT_CLEAR, 1 << queue);
-	}
-
-	cpmac_write(priv->regs, CPMAC_MAC_EOI_VECTOR, 0);
-
-	if (unlikely(status & (MAC_INT_HOST | MAC_INT_STATUS)))
-		cpmac_check_status(dev);
-
-	return IRQ_HANDLED;
-}
-
-static void cpmac_tx_timeout(struct net_device *dev)
-{
-	int i;
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	spin_lock(&priv->lock);
-	dev->stats.tx_errors++;
-	spin_unlock(&priv->lock);
-	if (netif_msg_tx_err(priv) && net_ratelimit())
-		printk(KERN_WARNING "%s: transmit timeout\n", dev->name);
-
-	atomic_inc(&priv->reset_pending);
-	barrier();
-	cpmac_clear_tx(dev);
-	barrier();
-	atomic_dec(&priv->reset_pending);
-
-	netif_wake_queue(priv->dev);
-	for (i = 0; i < CPMAC_QUEUES; i++) {
-		netif_wake_subqueue(dev, i);
-	}
-}
-
-static int cpmac_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-	if (!(netif_running(dev)))
-		return -EINVAL;
-	if (!priv->phy)
-		return -EINVAL;
-	if ((cmd == SIOCGMIIPHY) || (cmd == SIOCGMIIREG) ||
-	    (cmd == SIOCSMIIREG))
-		return phy_mii_ioctl(priv->phy, if_mii(ifr), cmd);
-
-	return -EOPNOTSUPP;
-}
-
-static int cpmac_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	if (priv->phy)
-		return phy_ethtool_gset(priv->phy, cmd);
-
-	return -EINVAL;
-}
-
-static int cpmac_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-
-	if (priv->phy)
-		return phy_ethtool_sset(priv->phy, cmd);
-
-	return -EINVAL;
-}
-
-static void cpmac_get_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	ring->rx_max_pending = 1024;
-	ring->rx_mini_max_pending = 1;
-	ring->rx_jumbo_max_pending = 1;
-	ring->tx_max_pending = 1;
-
-	ring->rx_pending = priv->ring_size;
-	ring->rx_mini_pending = 1;
-	ring->rx_jumbo_pending = 1;
-	ring->tx_pending = 1;
-}
-
-static int cpmac_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-
-	if (netif_running(dev))
-		return -EBUSY;
-	priv->ring_size = ring->rx_pending;
-	return 0;
-}
-
-static void cpmac_get_drvinfo(struct net_device *dev,
-			      struct ethtool_drvinfo *info)
-{
-	strcpy(info->driver, "cpmac");
-	strcpy(info->version, CPMAC_VERSION);
-	info->fw_version[0] = '\0';
-	sprintf(info->bus_info, "%s", "cpmac");
-	info->regdump_len = 0;
-}
-
-static const struct ethtool_ops cpmac_ethtool_ops = {
-	.get_settings = cpmac_get_settings,
-	.set_settings = cpmac_set_settings,
-	.get_drvinfo = cpmac_get_drvinfo,
-	.get_link = ethtool_op_get_link,
-	.get_ringparam = cpmac_get_ringparam,
-	.set_ringparam = cpmac_set_ringparam,
-};
-
-static void cpmac_adjust_link(struct net_device *dev)
-{
-	struct cpmac_priv *priv = netdev_priv(dev);
-	int new_state = 0;
-
-	spin_lock(&priv->lock);
-	if (priv->phy->link) {
-		netif_start_queue(dev);
-		if (priv->phy->duplex != priv->oldduplex) {
-			new_state = 1;
-			priv->oldduplex = priv->phy->duplex;
-		}
-
-		if (priv->phy->speed != priv->oldspeed) {
-			new_state = 1;
-			priv->oldspeed = priv->phy->speed;
-		}
-
-		if (!priv->oldlink) {
-			new_state = 1;
-			priv->oldlink = 1;
-			netif_schedule(dev);
-		}
-	} else if (priv->oldlink) {
-		netif_stop_queue(dev);
-		new_state = 1;
-		priv->oldlink = 0;
-		priv->oldspeed = 0;
-		priv->oldduplex = -1;
-	}
-
-	if (new_state && netif_msg_link(priv) && net_ratelimit())
-		phy_print_status(priv->phy);
-
-	spin_unlock(&priv->lock);
-}
-
-static int cpmac_open(struct net_device *dev)
-{
-	int i, size, res;
-	struct cpmac_priv *priv = netdev_priv(dev);
-	struct resource *mem;
-	struct cpmac_desc *desc;
-	struct sk_buff *skb;
-
-	priv->phy = phy_connect(dev, priv->phy_name, &cpmac_adjust_link,
-				0, PHY_INTERFACE_MODE_MII);
-	if (IS_ERR(priv->phy)) {
-		if (netif_msg_drv(priv))
-			printk(KERN_ERR "%s: Could not attach to PHY\n",
-			       dev->name);
-		return PTR_ERR(priv->phy);
-	}
-
-	mem = platform_get_resource_byname(priv->pdev, IORESOURCE_MEM, "regs");
-	if (!request_mem_region(mem->start, mem->end - mem->start, dev->name)) {
-		if (netif_msg_drv(priv))
-			printk(KERN_ERR "%s: failed to request registers\n",
-			       dev->name);
-		res = -ENXIO;
-		goto fail_reserve;
-	}
-
-	priv->regs = ioremap(mem->start, mem->end - mem->start);
-	if (!priv->regs) {
-		if (netif_msg_drv(priv))
-			printk(KERN_ERR "%s: failed to remap registers\n",
-			       dev->name);
-		res = -ENXIO;
-		goto fail_remap;
-	}
-
-	size = priv->ring_size + CPMAC_QUEUES;
-	priv->desc_ring = dma_alloc_coherent(&dev->dev,
-					     sizeof(struct cpmac_desc) * size,
-					     &priv->dma_ring,
-					     GFP_KERNEL);
-	if (!priv->desc_ring) {
-		res = -ENOMEM;
-		goto fail_alloc;
-	}
-
-	for (i = 0; i < size; i++)
-		priv->desc_ring[i].mapping = priv->dma_ring + sizeof(*desc) * i;
-
-	priv->rx_head = &priv->desc_ring[CPMAC_QUEUES];
-	for (i = 0, desc = priv->rx_head; i < priv->ring_size; i++, desc++) {
-		skb = netdev_alloc_skb(dev, CPMAC_SKB_SIZE);
-		if (unlikely(!skb)) {
-			res = -ENOMEM;
-			goto fail_desc;
-		}
-		skb_reserve(skb, 2);
-		desc->skb = skb;
-		desc->data_mapping = dma_map_single(&dev->dev, skb->data,
-						    CPMAC_SKB_SIZE,
-						    DMA_FROM_DEVICE);
-		desc->hw_data = (u32)desc->data_mapping;
-		desc->buflen = CPMAC_SKB_SIZE;
-		desc->dataflags = CPMAC_OWN;
-		desc->next = &priv->rx_head[(i + 1) % priv->ring_size];
-		desc->next->prev = desc;
-		desc->hw_next = (u32)desc->next->mapping;
-	}
-
-	priv->rx_head->prev->hw_next = (u32)0;
-
-	if ((res = request_irq(dev->irq, cpmac_irq, IRQF_SHARED,
-			       dev->name, dev))) {
-		if (netif_msg_drv(priv))
-			printk(KERN_ERR "%s: failed to obtain irq\n",
-			       dev->name);
-		goto fail_irq;
-	}
-
-	atomic_set(&priv->reset_pending, 0);
-	INIT_WORK(&priv->reset_work, cpmac_hw_error);
-	cpmac_hw_start(dev);
-
-	priv->phy->state = PHY_CHANGELINK;
-	phy_start(priv->phy);
-
-	return 0;
-
-fail_irq:
-fail_desc:
-	for (i = 0; i < priv->ring_size; i++) {
-		if (priv->rx_head[i].skb) {
-			dma_unmap_single(&dev->dev,
-					 priv->rx_head[i].data_mapping,
-					 CPMAC_SKB_SIZE,
-					 DMA_FROM_DEVICE);
-			kfree_skb(priv->rx_head[i].skb);
-		}
-	}
-fail_alloc:
-	kfree(priv->desc_ring);
-	iounmap(priv->regs);
-
-fail_remap:
-	release_mem_region(mem->start, mem->end - mem->start);
-
-fail_reserve:
-	phy_disconnect(priv->phy);
-
-	return res;
-}
-
-static int cpmac_stop(struct net_device *dev)
-{
-	int i;
-	struct cpmac_priv *priv = netdev_priv(dev);
-	struct resource *mem;
-
-	netif_stop_queue(dev);
-
-	cancel_work_sync(&priv->reset_work);
-	phy_stop(priv->phy);
-	phy_disconnect(priv->phy);
-	priv->phy = NULL;
-
-	cpmac_hw_stop(dev);
-
-	for (i = 0; i < 8; i++)
-		cpmac_write(priv->regs, CPMAC_TX_PTR(i), 0);
-	cpmac_write(priv->regs, CPMAC_RX_PTR(0), 0);
-	cpmac_write(priv->regs, CPMAC_MBP, 0);
-
-	free_irq(dev->irq, dev);
-	iounmap(priv->regs);
-	mem = platform_get_resource_byname(priv->pdev, IORESOURCE_MEM, "regs");
-	release_mem_region(mem->start, mem->end - mem->start);
-	priv->rx_head = &priv->desc_ring[CPMAC_QUEUES];
-	for (i = 0; i < priv->ring_size; i++) {
-		if (priv->rx_head[i].skb) {
-			dma_unmap_single(&dev->dev,
-					 priv->rx_head[i].data_mapping,
-					 CPMAC_SKB_SIZE,
-					 DMA_FROM_DEVICE);
-			kfree_skb(priv->rx_head[i].skb);
-		}
-	}
-
-	dma_free_coherent(&dev->dev, sizeof(struct cpmac_desc) *
-			  (CPMAC_QUEUES + priv->ring_size),
-			  priv->desc_ring, priv->dma_ring);
-	return 0;
-}
-
-static int external_switch;
-
-static int __devinit cpmac_probe(struct platform_device *pdev)
-{
-	int rc, phy_id;
-	struct resource *mem;
-	struct cpmac_priv *priv;
-	struct net_device *dev;
-	struct plat_cpmac_data *pdata;
-
-	pdata = pdev->dev.platform_data;
-
-	for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) {
-		if (!(pdata->phy_mask & (1 << phy_id)))
-			continue;
-		if (!cpmac_mii.phy_map[phy_id])
-			continue;
-		break;
-	}
-
-	if (phy_id == PHY_MAX_ADDR) {
-		if (external_switch || dumb_switch)
-			phy_id = 0;
-		else {
-			printk(KERN_ERR "cpmac: no PHY present\n");
-			return -ENODEV;
-		}
-	}
-
-	dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES);
-
-	if (!dev) {
-		printk(KERN_ERR "cpmac: Unable to allocate net_device\n");
-		return -ENOMEM;
-	}
-
-	platform_set_drvdata(pdev, dev);
-	priv = netdev_priv(dev);
-
-	priv->pdev = pdev;
-	mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
-	if (!mem) {
-		rc = -ENODEV;
-		goto fail;
-	}
-
-	dev->irq = platform_get_irq_byname(pdev, "irq");
-
-	dev->open               = cpmac_open;
-	dev->stop               = cpmac_stop;
-	dev->set_config         = cpmac_config;
-	dev->hard_start_xmit    = cpmac_start_xmit;
-	dev->do_ioctl           = cpmac_ioctl;
-	dev->set_multicast_list = cpmac_set_multicast_list;
-	dev->tx_timeout         = cpmac_tx_timeout;
-	dev->ethtool_ops        = &cpmac_ethtool_ops;
-	dev->poll = cpmac_poll;
-	dev->features |= NETIF_F_MULTI_QUEUE;
-
-	spin_lock_init(&priv->lock);
-	spin_lock_init(&priv->rx_lock);
-	priv->dev = dev;
-	priv->ring_size = 64;
-	dev->weight = max(4, priv->ring_size/4);
-	priv->msg_enable = netif_msg_init(debug_level, 0xff);
-	memcpy(dev->dev_addr, pdata->dev_addr, sizeof(dev->dev_addr));
-	if (phy_id == 31) {
-		snprintf(priv->phy_name, BUS_ID_SIZE, PHY_ID_FMT,
-			 cpmac_mii.id, phy_id);
-	} else
-		snprintf(priv->phy_name, BUS_ID_SIZE, "fixed@%d:%d", 100, 1);
-
-	if ((rc = register_netdev(dev))) {
-		printk(KERN_ERR "cpmac: error %i registering device %s\n", rc,
-		       dev->name);
-		goto fail;
-	}
-
-	if (netif_msg_probe(priv)) {
-		printk(KERN_INFO
-		       "cpmac: device %s (regs: %p, irq: %d, phy: %s, mac: "
-		       MAC_FMT ")\n", dev->name, (void *)mem->start, dev->irq,
-		       priv->phy_name, MAC_ARG(dev->dev_addr));
-	}
-	return 0;
-
-fail:
-	free_netdev(dev);
-	return rc;
-}
-
-static int __devexit cpmac_remove(struct platform_device *pdev)
-{
-	struct net_device *dev = platform_get_drvdata(pdev);
-	unregister_netdev(dev);
-	free_netdev(dev);
-	return 0;
-}
-
-static struct platform_driver cpmac_driver = {
-	.driver.name = "cpmac",
-	.probe = cpmac_probe,
-	.remove = __devexit_p(cpmac_remove),
-};
-
-int __devinit cpmac_init(void)
-{
-	u32 mask;
-	int i, res;
-
-	cpmac_mii.priv = ioremap(AR7_REGS_MDIO, 256);
-
-	if (!cpmac_mii.priv) {
-		printk(KERN_ERR "Can't ioremap mdio registers\n");
-		return -ENXIO;
-	}
-
-#warning FIXME: unhardcode gpio&reset bits
-	ar7_gpio_disable(26);
-	ar7_gpio_disable(27);
-	ar7_device_reset(AR7_RESET_BIT_CPMAC_LO);
-	ar7_device_reset(AR7_RESET_BIT_CPMAC_HI);
-	ar7_device_reset(AR7_RESET_BIT_EPHY);
-
-	cpmac_mii.reset(&cpmac_mii);
-
-	for (i = 0; i < 300000; i++)
-		if ((mask = cpmac_read(cpmac_mii.priv, CPMAC_MDIO_ALIVE)))
-			break;
-		else
-			cpu_relax();
-
-	mask &= 0x7fffffff;
-	if (mask & (mask - 1)) {
-		external_switch = 1;
-		mask = 0;
-	}
-
-	cpmac_mii.phy_mask = ~(mask | 0x80000000);
-
-	res = mdiobus_register(&cpmac_mii);
-	if (res)
-		goto fail_mii;
-
-	res = platform_driver_register(&cpmac_driver);
-	if (res)
-		goto fail_cpmac;
-
-	return 0;
-
-fail_cpmac:
-	mdiobus_unregister(&cpmac_mii);
-
-fail_mii:
-	iounmap(cpmac_mii.priv);
-
-	return res;
-}
-
-void __devexit cpmac_exit(void)
-{
-	platform_driver_unregister(&cpmac_driver);
-	mdiobus_unregister(&cpmac_mii);
-	iounmap(cpmac_mii.priv);
-}
-
-module_init(cpmac_init);
-module_exit(cpmac_exit);
diff --git a/target/linux/ar7/patches-2.6.24/140-cpmac_fix.patch b/target/linux/ar7/patches-2.6.24/140-cpmac_fix.patch
index 4957d85a6d..7c51517b1e 100644
--- a/target/linux/ar7/patches-2.6.24/140-cpmac_fix.patch
+++ b/target/linux/ar7/patches-2.6.24/140-cpmac_fix.patch
@@ -1,19 +1,16 @@
---- linux-2.6.24/drivers/net/Kconfig	2008-02-07 02:29:04.000000000 +0100
-+++ linux-2.6.24/drivers/net/Kconfig	2008-02-07 02:29:35.000000000 +0100
-@@ -1830,10 +1830,8 @@
- 
- config CPMAC
+--- linux-2.6.24/drivers/net/Kconfig	2008-01-25 02:20:37.000000000 +0100
++++ linux-2.6.24/drivers/net/Kconfig	2008-02-08 18:12:02.000000000 +0100
+@@ -1709,8 +1709,6 @@
  	tristate "TI AR7 CPMAC Ethernet support (EXPERIMENTAL)"
--	depends on NET_ETHERNET && EXPERIMENTAL && AR7
-+	depends on NET_ETHERNET && EXPERIMENTAL && AR7 && BROKEN
+ 	depends on NET_ETHERNET && EXPERIMENTAL && AR7
  	select PHYLIB
 -	select FIXED_PHY
 -	select FIXED_MII_100_FDX
  	help
  	  TI AR7 CPMAC Ethernet support
  
---- linux-2.6.24/drivers/net/cpmac.c	2008-01-24 23:58:37.000000000 +0100
-+++ linux-2.6.24/drivers/net/cpmac.c	2008-02-07 02:32:57.000000000 +0100
+--- linux-2.6.24/drivers/net/cpmac.c	2008-01-25 02:20:37.000000000 +0100
++++ linux-2.6.24/drivers/net/cpmac.c	2008-02-08 18:05:35.000000000 +0100
 @@ -661,9 +661,6 @@
  	int queue;
  	u32 status;