Merging upstream version 6.7.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

14 files changed, 85 insertions, 1307 deletions

diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index cac61f5d3f..e60b557d59 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -6,7 +6,7 @@
 config NET_VENDOR_TI
 	bool "Texas Instruments (TI) devices"
 	default y
-	depends on PCI || EISA || AR7 || ARCH_DAVINCI || ARCH_OMAP2PLUS || ARCH_KEYSTONE || ARCH_K3
+	depends on PCI || EISA || ARCH_DAVINCI || ARCH_OMAP2PLUS || ARCH_KEYSTONE || ARCH_K3
 	help
 	  If you have a network (Ethernet) card belonging to this class, say Y.
 
@@ -180,13 +180,6 @@ config TLAN
 
 	  Please email feedback to <torben.mathiasen@compaq.com>.
 
-config CPMAC
-	tristate "TI AR7 CPMAC Ethernet support"
-	depends on AR7
-	select PHYLIB
-	help
-	  TI AR7 CPMAC Ethernet support
-
 config TI_ICSSG_PRUETH
 	tristate "TI Gigabit PRU Ethernet driver"
 	select PHYLIB
diff --git a/drivers/net/ethernet/ti/Makefile b/drivers/net/ethernet/ti/Makefile
index 67bed861f3..27de1d6971 100644
--- a/drivers/net/ethernet/ti/Makefile
+++ b/drivers/net/ethernet/ti/Makefile
@@ -8,7 +8,6 @@ obj-$(CONFIG_TI_DAVINCI_EMAC) += cpsw-common.o
 obj-$(CONFIG_TI_CPSW_SWITCHDEV) += cpsw-common.o
 
 obj-$(CONFIG_TLAN) += tlan.o
-obj-$(CONFIG_CPMAC) += cpmac.o
 obj-$(CONFIG_TI_DAVINCI_EMAC) += ti_davinci_emac.o
 ti_davinci_emac-y := davinci_emac.o davinci_cpdma.o
 obj-$(CONFIG_TI_DAVINCI_MDIO) += davinci_mdio.o
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index c62b0f99f2..f7a6d720eb 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -1588,10 +1588,10 @@ static void am65_cpsw_nuss_mac_link_up(struct phylink_config *config, struct phy
 
 	/* rx_pause/tx_pause */
 	if (rx_pause)
-		mac_control |= CPSW_SL_CTL_RX_FLOW_EN;
+		mac_control |= CPSW_SL_CTL_TX_FLOW_EN;
 
 	if (tx_pause)
-		mac_control |= CPSW_SL_CTL_TX_FLOW_EN;
+		mac_control |= CPSW_SL_CTL_RX_FLOW_EN;
 
 	cpsw_sl_ctl_set(port->slave.mac_sl, mac_control);
 
diff --git a/drivers/net/ethernet/ti/cpmac.c b/drivers/net/ethernet/ti/cpmac.c
deleted file mode 100644
index 80eeeb463c..0000000000
--- a/drivers/net/ethernet/ti/cpmac.c
+++ /dev/null
@@ -1,1251 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2006, 2007 Eugene Konev
- *
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.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/netdevice.h>
-#include <linux/if_vlan.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/skbuff.h>
-#include <linux/mii.h>
-#include <linux/phy.h>
-#include <linux/phy_fixed.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/clk.h>
-#include <linux/gpio.h>
-#include <linux/atomic.h>
-
-#include <asm/mach-ar7/ar7.h>
-
-MODULE_AUTHOR("Eugene Konev <ejka@imfi.kspu.ru>");
-MODULE_DESCRIPTION("TI AR7 ethernet driver (CPMAC)");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:cpmac");
-
-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 "0.5.2"
-/* frame size + 802.1q tag + FCS size */
-#define CPMAC_SKB_SIZE		(ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)
-#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;
-	char phy_name[MII_BUS_ID_SIZE + 3];
-	int oldlink, oldspeed, oldduplex;
-	u32 msg_enable;
-	struct net_device *dev;
-	struct work_struct reset_work;
-	struct platform_device *pdev;
-	struct napi_struct napi;
-	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("%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("%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("%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("%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)
-{
-	struct clk *cpmac_clk;
-
-	cpmac_clk = clk_get(&bus->dev, "cpmac");
-	if (IS_ERR(cpmac_clk)) {
-		pr_err("unable to get cpmac clock\n");
-		return -1;
-	}
-	ar7_device_reset(AR7_RESET_BIT_MDIO);
-	cpmac_write(bus->priv, CPMAC_MDIO_CONTROL, MDIOC_ENABLE |
-		    MDIOC_CLKDIV(clk_get_rate(cpmac_clk) / 2200000 - 1));
-
-	return 0;
-}
-
-static struct mii_bus *cpmac_mii;
-
-static void cpmac_set_multicast_list(struct net_device *dev)
-{
-	struct netdev_hw_addr *ha;
-	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)
-			 */
-			netdev_for_each_mc_addr(ha, dev) {
-				bit = 0;
-				tmp = ha->addr[0];
-				bit  ^= (tmp >> 2) ^ (tmp << 4);
-				tmp = ha->addr[1];
-				bit  ^= (tmp >> 4) ^ (tmp << 2);
-				tmp = ha->addr[2];
-				bit  ^= (tmp >> 6) ^ tmp;
-				tmp = ha->addr[3];
-				bit  ^= (tmp >> 2) ^ (tmp << 4);
-				tmp = ha->addr[4];
-				bit  ^= (tmp >> 4) ^ (tmp << 2);
-				tmp = ha->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 cpmac_priv *priv,
-				    struct cpmac_desc *desc)
-{
-	struct sk_buff *skb, *result = NULL;
-
-	if (unlikely(netif_msg_hw(priv)))
-		cpmac_dump_desc(priv->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())
-			netdev_warn(priv->dev, "rx: spurious interrupt\n");
-
-		return NULL;
-	}
-
-	skb = netdev_alloc_skb_ip_align(priv->dev, CPMAC_SKB_SIZE);
-	if (likely(skb)) {
-		skb_put(desc->skb, desc->datalen);
-		desc->skb->protocol = eth_type_trans(desc->skb, priv->dev);
-		skb_checksum_none_assert(desc->skb);
-		priv->dev->stats.rx_packets++;
-		priv->dev->stats.rx_bytes += desc->datalen;
-		result = desc->skb;
-		dma_unmap_single(&priv->dev->dev, desc->data_mapping,
-				 CPMAC_SKB_SIZE, DMA_FROM_DEVICE);
-		desc->skb = skb;
-		desc->data_mapping = dma_map_single(&priv->dev->dev, skb->data,
-						    CPMAC_SKB_SIZE,
-						    DMA_FROM_DEVICE);
-		desc->hw_data = (u32)desc->data_mapping;
-		if (unlikely(netif_msg_pktdata(priv))) {
-			netdev_dbg(priv->dev, "received packet:\n");
-			cpmac_dump_skb(priv->dev, result);
-		}
-	} else {
-		if (netif_msg_rx_err(priv) && net_ratelimit())
-			netdev_warn(priv->dev,
-				    "low on skbs, dropping packet\n");
-
-		priv->dev->stats.rx_dropped++;
-	}
-
-	desc->buflen = CPMAC_SKB_SIZE;
-	desc->dataflags = CPMAC_OWN;
-
-	return result;
-}
-
-static int cpmac_poll(struct napi_struct *napi, int budget)
-{
-	struct sk_buff *skb;
-	struct cpmac_desc *desc, *restart;
-	struct cpmac_priv *priv = container_of(napi, struct cpmac_priv, napi);
-	int received = 0, processed = 0;
-
-	spin_lock(&priv->rx_lock);
-	if (unlikely(!priv->rx_head)) {
-		if (netif_msg_rx_err(priv) && net_ratelimit())
-			netdev_warn(priv->dev, "rx: polling, but no queue\n");
-
-		spin_unlock(&priv->rx_lock);
-		napi_complete(napi);
-		return 0;
-	}
-
-	desc = priv->rx_head;
-	restart = NULL;
-	while (((desc->dataflags & CPMAC_OWN) == 0) && (received < budget)) {
-		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))
-					netdev_err(priv->dev, "poll found a"
-						   " duplicate EOQ: %p and %p\n",
-						   restart, desc);
-				goto fatal_error;
-			}
-
-			restart = desc->next;
-		}
-
-		skb = cpmac_rx_one(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) {
-		priv->dev->stats.rx_errors++;
-		priv->dev->stats.rx_fifo_errors++;
-		if (netif_msg_rx_err(priv) && net_ratelimit())
-			netdev_warn(priv->dev, "rx dma ring overrun\n");
-
-		if (unlikely((restart->dataflags & CPMAC_OWN) == 0)) {
-			if (netif_msg_drv(priv))
-				netdev_err(priv->dev, "cpmac_poll is trying "
-					"to restart rx from a descriptor "
-					"that's not free: %p\n", restart);
-			goto fatal_error;
-		}
-
-		cpmac_write(priv->regs, CPMAC_RX_PTR(0), restart->mapping);
-	}
-
-	priv->rx_head = desc;
-	spin_unlock(&priv->rx_lock);
-	if (unlikely(netif_msg_rx_status(priv)))
-		netdev_dbg(priv->dev, "poll processed %d packets\n", received);
-
-	if (processed == 0) {
-		/* we ran out of packets to read,
-		 * revert to interrupt-driven mode
-		 */
-		napi_complete(napi);
-		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)) {
-		netdev_err(priv->dev, "cpmac_poll is confused. "
-			   "Resetting hardware\n");
-		cpmac_dump_all_desc(priv->dev);
-		netdev_dbg(priv->dev, "RX_PTR(0)=0x%08x RX_ACK(0)=0x%08x\n",
-			   cpmac_read(priv->regs, CPMAC_RX_PTR(0)),
-			   cpmac_read(priv->regs, CPMAC_RX_ACK(0)));
-	}
-
-	spin_unlock(&priv->rx_lock);
-	napi_complete(napi);
-	netif_tx_stop_all_queues(priv->dev);
-	napi_disable(&priv->napi);
-
-	atomic_inc(&priv->reset_pending);
-	cpmac_hw_stop(priv->dev);
-	if (!schedule_work(&priv->reset_work))
-		atomic_dec(&priv->reset_pending);
-
-	return 0;
-
-}
-
-static netdev_tx_t cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	int queue;
-	unsigned int 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_t(unsigned int, skb->len, ETH_ZLEN);
-	queue = skb_get_queue_mapping(skb);
-	netif_stop_subqueue(dev, queue);
-
-	desc = &priv->desc_ring[queue];
-	if (unlikely(desc->dataflags & CPMAC_OWN)) {
-		if (netif_msg_tx_err(priv) && net_ratelimit())
-			netdev_warn(dev, "tx dma ring full\n");
-
-		return NETDEV_TX_BUSY;
-	}
-
-	spin_lock(&priv->lock);
-	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)))
-		netdev_dbg(dev, "sending 0x%p, len=%d\n", 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)))
-			netdev_dbg(dev, "sent 0x%p, len=%d\n",
-				   desc->skb, desc->skb->len);
-
-		dev_consume_skb_irq(desc->skb);
-		desc->skb = NULL;
-		if (__netif_subqueue_stopped(dev, queue))
-			netif_wake_subqueue(dev, queue);
-	} else {
-		if (netif_msg_tx_err(priv) && net_ratelimit())
-			netdev_warn(dev, "end_xmit: spurious interrupt\n");
-		if (__netif_subqueue_stopped(dev, queue))
-			netif_wake_subqueue(dev, queue);
-	}
-}
-
-static void cpmac_hw_stop(struct net_device *dev)
-{
-	int i;
-	struct cpmac_priv *priv = netdev_priv(dev);
-	struct plat_cpmac_data *pdata = dev_get_platdata(&priv->pdev->dev);
-
-	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 = dev_get_platdata(&priv->pdev->dev);
-
-	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())
-				netdev_warn(dev, "packet dropped\n");
-			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)
-{
-	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);
-
-	netif_tx_wake_all_queues(priv->dev);
-	cpmac_write(priv->regs, CPMAC_MAC_INT_ENABLE, 3);
-}
-
-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)
-				netdev_warn(dev, "host error %d on rx "
-					"channel %d (macstatus %08x), resetting\n",
-					rx_code, rx_channel, macstatus);
-			if (tx_code)
-				netdev_warn(dev, "host error %d on tx "
-					"channel %d (macstatus %08x), resetting\n",
-					tx_code, tx_channel, macstatus);
-		}
-
-		netif_tx_stop_all_queues(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);
-	}
-	cpmac_write(priv->regs, CPMAC_MAC_INT_CLEAR, 0xff);
-}
-
-static irqreturn_t cpmac_irq(int irq, void *dev_id)
-{
-	struct net_device *dev = dev_id;
-	struct cpmac_priv *priv;
-	int queue;
-	u32 status;
-
-	priv = netdev_priv(dev);
-
-	status = cpmac_read(priv->regs, CPMAC_MAC_INT_VECTOR);
-
-	if (unlikely(netif_msg_intr(priv)))
-		netdev_dbg(dev, "interrupt status: 0x%08x\n", status);
-
-	if (status & MAC_INT_TX)
-		cpmac_end_xmit(dev, (status & 7));
-
-	if (status & MAC_INT_RX) {
-		queue = (status >> 8) & 7;
-		if (napi_schedule_prep(&priv->napi)) {
-			cpmac_write(priv->regs, CPMAC_RX_INT_CLEAR, 1 << queue);
-			__napi_schedule(&priv->napi);
-		}
-	}
-
-	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, unsigned int txqueue)
-{
-	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())
-		netdev_warn(dev, "transmit timeout\n");
-
-	atomic_inc(&priv->reset_pending);
-	barrier();
-	cpmac_clear_tx(dev);
-	barrier();
-	atomic_dec(&priv->reset_pending);
-
-	netif_tx_wake_all_queues(priv->dev);
-}
-
-static void cpmac_get_ringparam(struct net_device *dev,
-				struct ethtool_ringparam *ring,
-				struct kernel_ethtool_ringparam *kernel_ring,
-				struct netlink_ext_ack *extack)
-{
-	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 kernel_ethtool_ringparam *kernel_ring,
-			       struct netlink_ext_ack *extack)
-{
-	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)
-{
-	strscpy(info->driver, "cpmac", sizeof(info->driver));
-	strscpy(info->version, CPMAC_VERSION, sizeof(info->version));
-	snprintf(info->bus_info, sizeof(info->bus_info), "%s", "cpmac");
-}
-
-static const struct ethtool_ops cpmac_ethtool_ops = {
-	.get_drvinfo = cpmac_get_drvinfo,
-	.get_link = ethtool_op_get_link,
-	.get_ringparam = cpmac_get_ringparam,
-	.set_ringparam = cpmac_set_ringparam,
-	.get_link_ksettings = phy_ethtool_get_link_ksettings,
-	.set_link_ksettings = phy_ethtool_set_link_ksettings,
-};
-
-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 (dev->phydev->link) {
-		netif_tx_start_all_queues(dev);
-		if (dev->phydev->duplex != priv->oldduplex) {
-			new_state = 1;
-			priv->oldduplex = dev->phydev->duplex;
-		}
-
-		if (dev->phydev->speed != priv->oldspeed) {
-			new_state = 1;
-			priv->oldspeed = dev->phydev->speed;
-		}
-
-		if (!priv->oldlink) {
-			new_state = 1;
-			priv->oldlink = 1;
-		}
-	} else if (priv->oldlink) {
-		new_state = 1;
-		priv->oldlink = 0;
-		priv->oldspeed = 0;
-		priv->oldduplex = -1;
-	}
-
-	if (new_state && netif_msg_link(priv) && net_ratelimit())
-		phy_print_status(dev->phydev);
-
-	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;
-
-	mem = platform_get_resource_byname(priv->pdev, IORESOURCE_MEM, "regs");
-	if (!request_mem_region(mem->start, resource_size(mem), dev->name)) {
-		if (netif_msg_drv(priv))
-			netdev_err(dev, "failed to request registers\n");
-
-		res = -ENXIO;
-		goto fail_reserve;
-	}
-
-	priv->regs = ioremap(mem->start, resource_size(mem));
-	if (!priv->regs) {
-		if (netif_msg_drv(priv))
-			netdev_err(dev, "failed to remap registers\n");
-
-		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_ip_align(dev, CPMAC_SKB_SIZE);
-		if (unlikely(!skb)) {
-			res = -ENOMEM;
-			goto fail_desc;
-		}
-		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;
-
-	res = request_irq(dev->irq, cpmac_irq, IRQF_SHARED, dev->name, dev);
-	if (res) {
-		if (netif_msg_drv(priv))
-			netdev_err(dev, "failed to obtain irq\n");
-
-		goto fail_irq;
-	}
-
-	atomic_set(&priv->reset_pending, 0);
-	INIT_WORK(&priv->reset_work, cpmac_hw_error);
-	cpmac_hw_start(dev);
-
-	napi_enable(&priv->napi);
-	phy_start(dev->phydev);
-
-	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);
-		}
-	}
-	dma_free_coherent(&dev->dev, sizeof(struct cpmac_desc) * size,
-			  priv->desc_ring, priv->dma_ring);
-
-fail_alloc:
-	iounmap(priv->regs);
-
-fail_remap:
-	release_mem_region(mem->start, resource_size(mem));
-
-fail_reserve:
-	return res;
-}
-
-static int cpmac_stop(struct net_device *dev)
-{
-	int i;
-	struct cpmac_priv *priv = netdev_priv(dev);
-	struct resource *mem;
-
-	netif_tx_stop_all_queues(dev);
-
-	cancel_work_sync(&priv->reset_work);
-	napi_disable(&priv->napi);
-	phy_stop(dev->phydev);
-
-	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, resource_size(mem));
-	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 const struct net_device_ops cpmac_netdev_ops = {
-	.ndo_open		= cpmac_open,
-	.ndo_stop		= cpmac_stop,
-	.ndo_start_xmit		= cpmac_start_xmit,
-	.ndo_tx_timeout		= cpmac_tx_timeout,
-	.ndo_set_rx_mode	= cpmac_set_multicast_list,
-	.ndo_eth_ioctl		= phy_do_ioctl_running,
-	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address	= eth_mac_addr,
-};
-
-static int external_switch;
-
-static int cpmac_probe(struct platform_device *pdev)
-{
-	int rc, phy_id;
-	char mdio_bus_id[MII_BUS_ID_SIZE];
-	struct resource *mem;
-	struct cpmac_priv *priv;
-	struct net_device *dev;
-	struct plat_cpmac_data *pdata;
-	struct phy_device *phydev = NULL;
-
-	pdata = dev_get_platdata(&pdev->dev);
-
-	if (external_switch || dumb_switch) {
-		strncpy(mdio_bus_id, "fixed-0", MII_BUS_ID_SIZE); /* fixed phys bus */
-		phy_id = pdev->id;
-	} else {
-		for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) {
-			if (!(pdata->phy_mask & (1 << phy_id)))
-				continue;
-			if (!mdiobus_get_phy(cpmac_mii, phy_id))
-				continue;
-			strncpy(mdio_bus_id, cpmac_mii->id, MII_BUS_ID_SIZE);
-			break;
-		}
-	}
-
-	if (phy_id == PHY_MAX_ADDR) {
-		dev_err(&pdev->dev, "no PHY present, falling back "
-			"to switch on MDIO bus 0\n");
-		strncpy(mdio_bus_id, "fixed-0", MII_BUS_ID_SIZE); /* fixed phys bus */
-		phy_id = pdev->id;
-	}
-	mdio_bus_id[sizeof(mdio_bus_id) - 1] = '\0';
-
-	dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES);
-	if (!dev)
-		return -ENOMEM;
-
-	SET_NETDEV_DEV(dev, &pdev->dev);
-	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->netdev_ops = &cpmac_netdev_ops;
-	dev->ethtool_ops = &cpmac_ethtool_ops;
-
-	netif_napi_add(dev, &priv->napi, cpmac_poll);
-
-	spin_lock_init(&priv->lock);
-	spin_lock_init(&priv->rx_lock);
-	priv->dev = dev;
-	priv->ring_size = 64;
-	priv->msg_enable = netif_msg_init(debug_level, 0xff);
-	eth_hw_addr_set(dev, pdata->dev_addr);
-
-	snprintf(priv->phy_name, MII_BUS_ID_SIZE, PHY_ID_FMT,
-						mdio_bus_id, phy_id);
-
-	phydev = phy_connect(dev, priv->phy_name, cpmac_adjust_link,
-			     PHY_INTERFACE_MODE_MII);
-
-	if (IS_ERR(phydev)) {
-		if (netif_msg_drv(priv))
-			dev_err(&pdev->dev, "Could not attach to PHY\n");
-
-		rc = PTR_ERR(phydev);
-		goto fail;
-	}
-
-	rc = register_netdev(dev);
-	if (rc) {
-		dev_err(&pdev->dev, "Could not register net device\n");
-		goto fail;
-	}
-
-	if (netif_msg_probe(priv)) {
-		dev_info(&pdev->dev, "regs: %p, irq: %d, phy: %s, "
-			 "mac: %pM\n", (void *)mem->start, dev->irq,
-			 priv->phy_name, dev->dev_addr);
-	}
-
-	return 0;
-
-fail:
-	free_netdev(dev);
-	return rc;
-}
-
-static int 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 = cpmac_remove,
-};
-
-int __init cpmac_init(void)
-{
-	u32 mask;
-	int i, res;
-
-	cpmac_mii = mdiobus_alloc();
-	if (cpmac_mii == NULL)
-		return -ENOMEM;
-
-	cpmac_mii->name = "cpmac-mii";
-	cpmac_mii->read = cpmac_mdio_read;
-	cpmac_mii->write = cpmac_mdio_write;
-	cpmac_mii->reset = cpmac_mdio_reset;
-
-	cpmac_mii->priv = ioremap(AR7_REGS_MDIO, 256);
-
-	if (!cpmac_mii->priv) {
-		pr_err("Can't ioremap mdio registers\n");
-		res = -ENXIO;
-		goto fail_alloc;
-	}
-
-	/* 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 < 300; i++) {
-		mask = cpmac_read(cpmac_mii->priv, CPMAC_MDIO_ALIVE);
-		if (mask)
-			break;
-		else
-			msleep(10);
-	}
-
-	mask &= 0x7fffffff;
-	if (mask & (mask - 1)) {
-		external_switch = 1;
-		mask = 0;
-	}
-
-	cpmac_mii->phy_mask = ~(mask | 0x80000000);
-	snprintf(cpmac_mii->id, MII_BUS_ID_SIZE, "cpmac-1");
-
-	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);
-
-fail_alloc:
-	mdiobus_free(cpmac_mii);
-
-	return res;
-}
-
-void __exit cpmac_exit(void)
-{
-	platform_driver_unregister(&cpmac_driver);
-	mdiobus_unregister(cpmac_mii);
-	iounmap(cpmac_mii->priv);
-	mdiobus_free(cpmac_mii);
-}
-
-module_init(cpmac_init);
-module_exit(cpmac_exit);
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index ca4d4548f8..2ed165dcdb 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -631,6 +631,8 @@ static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
 		}
 	}
 
+	phy->mac_managed_pm = true;
+
 	slave->phy = phy;
 
 	phy_attached_info(slave->phy);
diff --git a/drivers/net/ethernet/ti/cpsw_new.c b/drivers/net/ethernet/ti/cpsw_new.c
index 0e4f526b17..9061dca97f 100644
--- a/drivers/net/ethernet/ti/cpsw_new.c
+++ b/drivers/net/ethernet/ti/cpsw_new.c
@@ -773,6 +773,9 @@ static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
 			slave->slave_num);
 		return;
 	}
+
+	phy->mac_managed_pm = true;
+
 	slave->phy = phy;
 
 	phy_attached_info(slave->phy);
diff --git a/drivers/net/ethernet/ti/cpsw_priv.c b/drivers/net/ethernet/ti/cpsw_priv.c
index 0ec85635df..764ed298b5 100644
--- a/drivers/net/ethernet/ti/cpsw_priv.c
+++ b/drivers/net/ethernet/ti/cpsw_priv.c
@@ -1360,7 +1360,7 @@ int cpsw_run_xdp(struct cpsw_priv *priv, int ch, struct xdp_buff *xdp,
 		 *  particular hardware is sharing a common queue, so the
 		 *  incoming device might change per packet.
 		 */
-		xdp_do_flush_map();
+		xdp_do_flush();
 		break;
 	default:
 		bpf_warn_invalid_xdp_action(ndev, prog, act);
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 2eb9d5a325..b0950a318c 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -38,6 +38,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/clk.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/semaphore.h>
 #include <linux/phy.h>
@@ -47,10 +48,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/davinci_emac.h>
 #include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
 #include <linux/of_mdio.h>
-#include <linux/of_irq.h>
 #include <linux/of_net.h>
 #include <linux/mfd/syscon.h>
 
@@ -1726,13 +1724,10 @@ static const struct net_device_ops emac_netdev_ops = {
 #endif
 };
 
-static const struct of_device_id davinci_emac_of_match[];
-
 static struct emac_platform_data *
 davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv)
 {
 	struct device_node *np;
-	const struct of_device_id *match;
 	const struct emac_platform_data *auxdata;
 	struct emac_platform_data *pdata = NULL;
 
@@ -1779,9 +1774,8 @@ davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv)
 		pdata->interrupt_disable = auxdata->interrupt_disable;
 	}
 
-	match = of_match_device(davinci_emac_of_match, &pdev->dev);
-	if (match && match->data) {
-		auxdata = match->data;
+	auxdata = device_get_match_data(&pdev->dev);
+	if (auxdata) {
 		pdata->version = auxdata->version;
 		pdata->hw_ram_addr = auxdata->hw_ram_addr;
 	}
@@ -1934,18 +1928,20 @@ static int davinci_emac_probe(struct platform_device *pdev)
 		goto err_free_rxchan;
 	ndev->irq = rc;
 
-	rc = davinci_emac_try_get_mac(pdev, res_ctrl ? 0 : 1, priv->mac_addr);
-	if (!rc)
-		eth_hw_addr_set(ndev, priv->mac_addr);
-
+	/* If the MAC address is not present, read the registers from the SoC */
 	if (!is_valid_ether_addr(priv->mac_addr)) {
-		/* Use random MAC if still none obtained. */
-		eth_hw_addr_random(ndev);
-		memcpy(priv->mac_addr, ndev->dev_addr, ndev->addr_len);
-		dev_warn(&pdev->dev, "using random MAC addr: %pM\n",
-			 priv->mac_addr);
+		rc = davinci_emac_try_get_mac(pdev, res_ctrl ? 0 : 1, priv->mac_addr);
+		if (!rc)
+			eth_hw_addr_set(ndev, priv->mac_addr);
+
+		if (!is_valid_ether_addr(priv->mac_addr)) {
+			/* Use random MAC if still none obtained. */
+			eth_hw_addr_random(ndev);
+			memcpy(priv->mac_addr, ndev->dev_addr, ndev->addr_len);
+			dev_warn(&pdev->dev, "using random MAC addr: %pM\n",
+				 priv->mac_addr);
+		}
 	}
-
 	ndev->netdev_ops = &emac_netdev_ops;
 	ndev->ethtool_ops = &ethtool_ops;
 	netif_napi_add(ndev, &priv->napi, emac_poll);
@@ -2002,7 +1998,7 @@ err_free_netdev:
  * Called when removing the device driver. We disable clock usage and release
  * the resources taken up by the driver and unregister network device
  */
-static int davinci_emac_remove(struct platform_device *pdev)
+static void davinci_emac_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct emac_priv *priv = netdev_priv(ndev);
@@ -2022,8 +2018,6 @@ static int davinci_emac_remove(struct platform_device *pdev)
 	if (of_phy_is_fixed_link(np))
 		of_phy_deregister_fixed_link(np);
 	free_netdev(ndev);
-
-	return 0;
 }
 
 static int davinci_emac_suspend(struct device *dev)
@@ -2076,7 +2070,7 @@ static struct platform_driver davinci_emac_driver = {
 		.of_match_table = davinci_emac_of_match,
 	},
 	.probe = davinci_emac_probe,
-	.remove = davinci_emac_remove,
+	.remove_new = davinci_emac_remove,
 };
 
 /**
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 89b6d23e99..628c87dc1d 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -673,7 +673,7 @@ bail_out:
 	return ret;
 }
 
-static int davinci_mdio_remove(struct platform_device *pdev)
+static void davinci_mdio_remove(struct platform_device *pdev)
 {
 	struct davinci_mdio_data *data = platform_get_drvdata(pdev);
 
@@ -686,8 +686,6 @@ static int davinci_mdio_remove(struct platform_device *pdev)
 
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -766,7 +764,7 @@ static struct platform_driver davinci_mdio_driver = {
 		.of_match_table = of_match_ptr(davinci_mdio_of_mtable),
 	},
 	.probe = davinci_mdio_probe,
-	.remove = davinci_mdio_remove,
+	.remove_new = davinci_mdio_remove,
 };
 
 static int __init davinci_mdio_init(void)
diff --git a/drivers/net/ethernet/ti/icssg/icssg_config.c b/drivers/net/ethernet/ti/icssg/icssg_config.c
index b272361e37..99de8a40ed 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_config.c
+++ b/drivers/net/ethernet/ti/icssg/icssg_config.c
@@ -433,6 +433,17 @@ int emac_set_port_state(struct prueth_emac *emac,
 	return ret;
 }
 
+void icssg_config_half_duplex(struct prueth_emac *emac)
+{
+	u32 val;
+
+	if (!emac->half_duplex)
+		return;
+
+	val = get_random_u32();
+	writel(val, emac->dram.va + HD_RAND_SEED_OFFSET);
+}
+
 void icssg_config_set_speed(struct prueth_emac *emac)
 {
 	u8 fw_speed;
@@ -453,5 +464,8 @@ void icssg_config_set_speed(struct prueth_emac *emac)
 		return;
 	}
 
+	if (emac->duplex == DUPLEX_HALF)
+		fw_speed |= FW_LINK_SPEED_HD;
+
 	writeb(fw_speed, emac->dram.va + PORT_LINK_SPEED_OFFSET);
 }
diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
index c09ecb3da7..411898a4f3 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
@@ -19,11 +19,11 @@
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_irq.h>
 #include <linux/of_mdio.h>
 #include <linux/of_net.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/phy.h>
+#include <linux/property.h>
 #include <linux/remoteproc/pruss.h>
 #include <linux/regmap.h>
 #include <linux/remoteproc.h>
@@ -1029,6 +1029,8 @@ static void emac_adjust_link(struct net_device *ndev)
 		 * values
 		 */
 		if (emac->link) {
+			if (emac->duplex == DUPLEX_HALF)
+				icssg_config_half_duplex(emac);
 			/* Set the RGMII cfg for gig en and full duplex */
 			icssg_update_rgmii_cfg(prueth->miig_rt, emac);
 
@@ -1147,9 +1149,13 @@ static int emac_phy_connect(struct prueth_emac *emac)
 		return -ENODEV;
 	}
 
+	if (!emac->half_duplex) {
+		dev_dbg(prueth->dev, "half duplex mode is not supported\n");
+		phy_remove_link_mode(ndev->phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT);
+		phy_remove_link_mode(ndev->phydev, ETHTOOL_LINK_MODE_100baseT_Half_BIT);
+	}
+
 	/* remove unsupported modes */
-	phy_remove_link_mode(ndev->phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT);
-	phy_remove_link_mode(ndev->phydev, ETHTOOL_LINK_MODE_100baseT_Half_BIT);
 	phy_remove_link_mode(ndev->phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
 	phy_remove_link_mode(ndev->phydev, ETHTOOL_LINK_MODE_Pause_BIT);
 	phy_remove_link_mode(ndev->phydev, ETHTOOL_LINK_MODE_Asym_Pause_BIT);
@@ -1653,6 +1659,19 @@ static void emac_ndo_get_stats64(struct net_device *ndev,
 	stats->tx_dropped = ndev->stats.tx_dropped;
 }
 
+static int emac_ndo_get_phys_port_name(struct net_device *ndev, char *name,
+				       size_t len)
+{
+	struct prueth_emac *emac = netdev_priv(ndev);
+	int ret;
+
+	ret = snprintf(name, len, "p%d", emac->port_id);
+	if (ret >= len)
+		return -EINVAL;
+
+	return 0;
+}
+
 static const struct net_device_ops emac_netdev_ops = {
 	.ndo_open = emac_ndo_open,
 	.ndo_stop = emac_ndo_stop,
@@ -1663,6 +1682,7 @@ static const struct net_device_ops emac_netdev_ops = {
 	.ndo_set_rx_mode = emac_ndo_set_rx_mode,
 	.ndo_eth_ioctl = emac_ndo_ioctl,
 	.ndo_get_stats64 = emac_ndo_get_stats64,
+	.ndo_get_phys_port_name = emac_ndo_get_phys_port_name,
 };
 
 /* get emac_port corresponding to eth_node name */
@@ -1928,8 +1948,6 @@ static void prueth_put_cores(struct prueth *prueth, int slice)
 		pru_rproc_put(prueth->pru[slice]);
 }
 
-static const struct of_device_id prueth_dt_match[];
-
 static int prueth_probe(struct platform_device *pdev)
 {
 	struct device_node *eth_node, *eth_ports_node;
@@ -1938,7 +1956,6 @@ static int prueth_probe(struct platform_device *pdev)
 	struct genpool_data_align gp_data = {
 		.align = SZ_64K,
 	};
-	const struct of_device_id *match;
 	struct device *dev = &pdev->dev;
 	struct device_node *np;
 	struct prueth *prueth;
@@ -1948,17 +1965,13 @@ static int prueth_probe(struct platform_device *pdev)
 
 	np = dev->of_node;
 
-	match = of_match_device(prueth_dt_match, dev);
-	if (!match)
-		return -ENODEV;
-
 	prueth = devm_kzalloc(dev, sizeof(*prueth), GFP_KERNEL);
 	if (!prueth)
 		return -ENOMEM;
 
 	dev_set_drvdata(dev, prueth);
 	prueth->pdev = pdev;
-	prueth->pdata = *(const struct prueth_pdata *)match->data;
+	prueth->pdata = *(const struct prueth_pdata *)device_get_match_data(dev);
 
 	prueth->dev = dev;
 	eth_ports_node = of_get_child_by_name(np, "ethernet-ports");
@@ -2110,6 +2123,10 @@ static int prueth_probe(struct platform_device *pdev)
 				      eth0_node->name);
 			goto exit_iep;
 		}
+
+		if (of_find_property(eth0_node, "ti,half-duplex-capable", NULL))
+			prueth->emac[PRUETH_MAC0]->half_duplex = 1;
+
 		prueth->emac[PRUETH_MAC0]->iep = prueth->iep0;
 	}
 
@@ -2121,6 +2138,9 @@ static int prueth_probe(struct platform_device *pdev)
 			goto netdev_exit;
 		}
 
+		if (of_find_property(eth1_node, "ti,half-duplex-capable", NULL))
+			prueth->emac[PRUETH_MAC1]->half_duplex = 1;
+
 		prueth->emac[PRUETH_MAC1]->iep = prueth->iep0;
 	}
 
@@ -2318,8 +2338,13 @@ static const struct prueth_pdata am654_icssg_pdata = {
 	.quirk_10m_link_issue = 1,
 };
 
+static const struct prueth_pdata am64x_icssg_pdata = {
+	.fdqring_mode = K3_RINGACC_RING_MODE_RING,
+};
+
 static const struct of_device_id prueth_dt_match[] = {
 	{ .compatible = "ti,am654-icssg-prueth", .data = &am654_icssg_pdata },
+	{ .compatible = "ti,am642-icssg-prueth", .data = &am64x_icssg_pdata },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, prueth_dt_match);
diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.h b/drivers/net/ethernet/ti/icssg/icssg_prueth.h
index 3fe80a8758..8b6d6b4970 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.h
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.h
@@ -145,6 +145,7 @@ struct prueth_emac {
 	struct icss_iep *iep;
 	unsigned int rx_ts_enabled : 1;
 	unsigned int tx_ts_enabled : 1;
+	unsigned int half_duplex : 1;
 
 	/* DMA related */
 	struct prueth_tx_chn tx_chns[PRUETH_MAX_TX_QUEUES];
@@ -271,6 +272,7 @@ int icssg_config(struct prueth *prueth, struct prueth_emac *emac,
 int emac_set_port_state(struct prueth_emac *emac,
 			enum icssg_port_state_cmd state);
 void icssg_config_set_speed(struct prueth_emac *emac);
+void icssg_config_half_duplex(struct prueth_emac *emac);
 
 /* Buffer queue helpers */
 int icssg_queue_pop(struct prueth *prueth, u8 queue);
diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c
index d829113c16..11b90e1da0 100644
--- a/drivers/net/ethernet/ti/netcp_core.c
+++ b/drivers/net/ethernet/ti/netcp_core.c
@@ -2228,7 +2228,7 @@ probe_quit:
 	return ret;
 }
 
-static int netcp_remove(struct platform_device *pdev)
+static void netcp_remove(struct platform_device *pdev)
 {
 	struct netcp_device *netcp_device = platform_get_drvdata(pdev);
 	struct netcp_intf *netcp_intf, *netcp_tmp;
@@ -2256,7 +2256,6 @@ static int netcp_remove(struct platform_device *pdev)
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	platform_set_drvdata(pdev, NULL);
-	return 0;
 }
 
 static const struct of_device_id of_match[] = {
@@ -2271,7 +2270,7 @@ static struct platform_driver netcp_driver = {
 		.of_match_table	= of_match,
 	},
 	.probe = netcp_probe,
-	.remove = netcp_remove,
+	.remove_new = netcp_remove,
 };
 module_platform_driver(netcp_driver);
 
diff --git a/drivers/net/ethernet/ti/netcp_ethss.c b/drivers/net/ethernet/ti/netcp_ethss.c
index 2adf82a32b..02cb6474f6 100644
--- a/drivers/net/ethernet/ti/netcp_ethss.c
+++ b/drivers/net/ethernet/ti/netcp_ethss.c
@@ -1735,8 +1735,8 @@ static const struct netcp_ethtool_stat xgbe10_et_stats[] = {
 static void keystone_get_drvinfo(struct net_device *ndev,
 				 struct ethtool_drvinfo *info)
 {
-	strncpy(info->driver, NETCP_DRIVER_NAME, sizeof(info->driver));
-	strncpy(info->version, NETCP_DRIVER_VERSION, sizeof(info->version));
+	strscpy(info->driver, NETCP_DRIVER_NAME, sizeof(info->driver));
+	strscpy(info->version, NETCP_DRIVER_VERSION, sizeof(info->version));
 }
 
 static u32 keystone_get_msglevel(struct net_device *ndev)