strip the kernel version suffix from target directories, except for brcm-2.4 (the -2.4 will be included in the board name here). CONFIG_LINUX_<ver>_<board> becomes CONFIG_TARGET_<board>, same for profiles.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8653 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 625 insertions, 0 deletions

diff --git a/target/linux/adm5120/files/drivers/net/adm5120sw.c b/target/linux/adm5120/files/drivers/net/adm5120sw.c
new file mode 100644
index 0000000000..80c81abf74
--- /dev/null
+++ b/target/linux/adm5120/files/drivers/net/adm5120sw.c
@@ -0,0 +1,625 @@
+/*
+ *	ADM5120 built in ethernet switch driver
+ *
+ *	Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
+ *
+ *	Inspiration for this driver came from the original ADMtek 2.4
+ *	driver, Copyright ADMtek Inc.
+ *
+ *	NAPI extensions by Thomas Langer (Thomas.Langer@infineon.com)
+ *	and Friedrich Beckmann (Friedrich.Beckmann@infineon.com), 2007
+ *
+ *	TODO: Add support of high prio queues (currently disabled)
+ *
+ */
+#include <linux/autoconf.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <asm/mipsregs.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include "adm5120sw.h"
+
+#include <asm/mach-adm5120/adm5120_info.h>
+#include <asm/mach-adm5120/adm5120_irq.h>
+
+MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
+MODULE_DESCRIPTION("ADM5120 ethernet switch driver");
+MODULE_LICENSE("GPL");
+
+/* default settings - unlimited TX and RX on all ports, default shaper mode */
+static unsigned char bw_matrix[SW_DEVS] = {
+	0, 0, 0, 0, 0, 0
+};
+
+static int adm5120_nrdevs;
+
+static struct net_device *adm5120_devs[SW_DEVS];
+/* Lookup table port -> device */
+static struct net_device *adm5120_port[SW_DEVS];
+
+static struct adm5120_dma
+    adm5120_dma_txh_v[ADM5120_DMA_TXH] __attribute__((aligned(16))),
+    adm5120_dma_txl_v[ADM5120_DMA_TXL] __attribute__((aligned(16))),
+    adm5120_dma_rxh_v[ADM5120_DMA_RXH] __attribute__((aligned(16))),
+    adm5120_dma_rxl_v[ADM5120_DMA_RXL] __attribute__((aligned(16))),
+    *adm5120_dma_txh,
+    *adm5120_dma_txl,
+    *adm5120_dma_rxh,
+    *adm5120_dma_rxl;
+static struct sk_buff
+    *adm5120_skb_rxh[ADM5120_DMA_RXH],
+    *adm5120_skb_rxl[ADM5120_DMA_RXL],
+    *adm5120_skb_txh[ADM5120_DMA_TXH],
+    *adm5120_skb_txl[ADM5120_DMA_TXL];
+static int adm5120_rxli = 0;
+static int adm5120_txli = 0;
+/*static int adm5120_txhi = 0;*/
+static int adm5120_if_open = 0;
+
+static inline void adm5120_set_reg(unsigned int reg, unsigned long val)
+{
+	*(volatile unsigned long*)(SW_BASE+reg) = val;
+}
+
+static inline unsigned long adm5120_get_reg(unsigned int reg)
+{
+	return *(volatile unsigned long*)(SW_BASE+reg);
+}
+
+static inline void adm5120_rx_dma_update(struct adm5120_dma *dma,
+	struct sk_buff *skb, int end)
+{
+	dma->status = 0;
+	dma->cntl = 0;
+	dma->len = ADM5120_DMA_RXSIZE;
+	dma->data = ADM5120_DMA_ADDR(skb->data) |
+		ADM5120_DMA_OWN | (end ? ADM5120_DMA_RINGEND : 0);
+}
+
+static int adm5120_rx(struct net_device *dev,int *budget)
+{
+	struct sk_buff *skb, *skbn;
+	struct adm5120_sw *priv;
+	struct net_device *cdev;
+	struct adm5120_dma *dma;
+	int port, len, quota;
+
+	quota = min(dev->quota, *budget);
+	dma = &adm5120_dma_rxl[adm5120_rxli];
+	while (!(dma->data & ADM5120_DMA_OWN) && quota) {
+		port = (dma->status & ADM5120_DMA_PORTID);
+		port >>= ADM5120_DMA_PORTSHIFT;
+		cdev = adm5120_port[port];
+		if (cdev != dev) {      /* The current packet belongs to a different device */
+			if ((cdev==NULL) || !netif_running(cdev)) {
+				/* discard (update with old skb) */
+				skb = skbn = NULL;
+				goto rx_skip;
+			}
+			else {
+				netif_rx_schedule(cdev);/* Start polling next device */
+				return 1;       /* return 1 -> More packets to process */
+			}
+
+		}
+		skb = adm5120_skb_rxl[adm5120_rxli];
+		len = (dma->status & ADM5120_DMA_LEN);
+		len >>= ADM5120_DMA_LENSHIFT;
+		len -= ETH_FCS;
+
+		priv = netdev_priv(dev);
+		if (len <= 0 || len > ADM5120_DMA_RXSIZE ||
+			dma->status & ADM5120_DMA_FCSERR) {
+			priv->stats.rx_errors++;
+			skbn = NULL;
+		} else {
+			skbn = dev_alloc_skb(ADM5120_DMA_RXSIZE+16);
+			if (skbn) {
+				skb_put(skb, len);
+				skb->dev = dev;
+				skb->protocol = eth_type_trans(skb, dev);
+				skb->ip_summed = CHECKSUM_UNNECESSARY;
+				dev->last_rx = jiffies;
+				priv->stats.rx_packets++;
+				priv->stats.rx_bytes += len;
+				skb_reserve(skbn, NET_IP_ALIGN);
+				adm5120_skb_rxl[adm5120_rxli] = skbn;
+			} else {
+				printk(KERN_INFO "%s recycling!\n", dev->name);
+			}
+		}
+rx_skip:
+		adm5120_rx_dma_update(&adm5120_dma_rxl[adm5120_rxli],
+			adm5120_skb_rxl[adm5120_rxli],
+			(ADM5120_DMA_RXL-1==adm5120_rxli));
+		if (ADM5120_DMA_RXL == ++adm5120_rxli)
+			adm5120_rxli = 0;
+		dma = &adm5120_dma_rxl[adm5120_rxli];
+		if (skbn){
+			netif_receive_skb(skb);
+			dev->quota--;
+			(*budget)--;
+			quota--;
+		}
+	} /* while */
+	/* If there are still packets to process, return 1 */
+	if (quota){
+		/* No more packets to process, so disable the polling and reenable the interrupts */
+		netif_rx_complete(dev);
+		adm5120_set_reg(ADM5120_INT_MASK,
+			adm5120_get_reg(ADM5120_INT_MASK) &
+			~(ADM5120_INT_RXL|ADM5120_INT_LFULL));
+		return 0;
+
+
+	}
+	return 1;
+}
+
+static irqreturn_t adm5120_sw_irq(int irq, void *dev_id)
+{
+	unsigned long intreg, intmask;
+	int port;
+	struct net_device *dev;
+
+	intmask = adm5120_get_reg(ADM5120_INT_MASK);   /* Remember interrupt mask */
+	adm5120_set_reg(ADM5120_INT_MASK, ADM5120_INTMASKALL); /* Disable interrupts */
+
+	intreg = adm5120_get_reg(ADM5120_INT_ST); /* Read interrupt status */
+	adm5120_set_reg(ADM5120_INT_ST, intreg);  /* Clear interrupt status */
+
+	/* In NAPI operation the interrupts are disabled and the polling mechanism
+	 * is activated. The interrupts are finally enabled again in the polling routine.
+	 */
+	if (intreg & (ADM5120_INT_RXL|ADM5120_INT_LFULL)) {
+		/* check rx buffer for port number */
+		port = adm5120_dma_rxl[adm5120_rxli].status & ADM5120_DMA_PORTID;
+		port >>= ADM5120_DMA_PORTSHIFT;
+		dev = adm5120_port[port];
+		if ((dev==NULL) || !netif_running(dev)) {
+		/* discard (update with old skb) */
+			adm5120_rx_dma_update(&adm5120_dma_rxl[adm5120_rxli],
+				adm5120_skb_rxl[adm5120_rxli],
+				(ADM5120_DMA_RXL-1==adm5120_rxli));
+			if (ADM5120_DMA_RXL == ++adm5120_rxli)
+				adm5120_rxli = 0;
+		}
+		else {
+			netif_rx_schedule(dev);
+			intmask |= (ADM5120_INT_RXL|ADM5120_INT_LFULL); /* Disable RX interrupts */
+		}
+	}
+#ifdef CONFIG_DEBUG
+	if (intreg & ~(intmask))
+		printk(KERN_INFO "adm5120sw: IRQ 0x%08X unexpected!\n", (unsigned int)(intreg & ~(intmask)));
+#endif
+
+	adm5120_set_reg(ADM5120_INT_MASK, intmask);
+
+	return IRQ_HANDLED;
+}
+
+static void adm5120_set_vlan(char *matrix)
+{
+	unsigned long val;
+	int vlan_port, port;
+
+	val = matrix[0] + (matrix[1]<<8) + (matrix[2]<<16) + (matrix[3]<<24);
+	adm5120_set_reg(ADM5120_VLAN_GI, val);
+	val = matrix[4] + (matrix[5]<<8);
+	adm5120_set_reg(ADM5120_VLAN_GII, val);
+	/* Now set/update the port vs. device lookup table */
+	for (port=0; port<SW_DEVS; port++) {
+		for (vlan_port=0; vlan_port<SW_DEVS && !(matrix[vlan_port] & (0x00000001 << port)); vlan_port++);
+		if (vlan_port <SW_DEVS)
+			adm5120_port[port] = adm5120_devs[vlan_port];
+		else
+			adm5120_port[port] = NULL;
+	}
+}
+
+static void adm5120_set_bw(char *matrix)
+{
+	unsigned long val;
+
+	/* Port 0 to 3 are set using the bandwidth control 0 register */
+	val = matrix[0] + (matrix[1]<<8) + (matrix[2]<<16) + (matrix[3]<<24);
+	adm5120_set_reg(ADM5120_BW_CTL0, val);
+
+	/* Port 4 and 5 are set using the bandwidth control 1 register */
+	val = matrix[4];
+	if (matrix[5] == 1)
+		adm5120_set_reg(ADM5120_BW_CTL1, val | 0x80000000);
+	else
+		adm5120_set_reg(ADM5120_BW_CTL1, val & ~0x8000000);
+
+	printk(KERN_DEBUG "D: ctl0 0x%lx, ctl1 0x%lx\n",
+		adm5120_get_reg(ADM5120_BW_CTL0),
+		adm5120_get_reg(ADM5120_BW_CTL1));
+}
+
+static int adm5120_sw_open(struct net_device *dev)
+{
+	unsigned long val;
+	int i;
+
+	netif_start_queue(dev);
+	if (!adm5120_if_open++) {
+		/* enable interrupts on first open */
+		adm5120_set_reg(ADM5120_INT_MASK,
+			adm5120_get_reg(ADM5120_INT_MASK) &
+			~(ADM5120_INT_RXL|ADM5120_INT_LFULL));
+	}
+	/* enable (additional) port */
+	val = adm5120_get_reg(ADM5120_PORT_CONF0);
+	for (i=0; i<SW_DEVS; i++) {
+		if (dev == adm5120_devs[i])
+			val &= ~adm5120_eth_vlans[i];
+	}
+	adm5120_set_reg(ADM5120_PORT_CONF0, val);
+	return 0;
+}
+
+static int adm5120_sw_stop(struct net_device *dev)
+{
+	unsigned long val;
+	int i;
+
+	if (!--adm5120_if_open) {
+		adm5120_set_reg(ADM5120_INT_MASK, ADM5120_INTMASKALL);
+	}
+	/* disable port if not assigned to other devices */
+	val = adm5120_get_reg(ADM5120_PORT_CONF0) | ADM5120_PORTDISALL;
+	for (i=0; i<SW_DEVS; i++) {
+		if ((dev != adm5120_devs[i]) && netif_running(adm5120_devs[i]))
+			val &= ~adm5120_eth_vlans[i];
+	}
+	adm5120_set_reg(ADM5120_PORT_CONF0, val);
+	netif_stop_queue(dev);
+	return 0;
+}
+
+static int adm5120_sw_tx(struct sk_buff *skb, struct net_device *dev)
+{
+	struct adm5120_dma *dma;
+	struct sk_buff **skbl = adm5120_skb_txl;
+	struct adm5120_sw *priv = netdev_priv(dev);
+	unsigned long data;
+
+	dev->trans_start = jiffies;
+	dma = &adm5120_dma_txl[adm5120_txli];
+	if (dma->data & ADM5120_DMA_OWN) {
+		/* We want to write a packet but the TX queue is still
+		 * occupied by the DMA. We are faster than the DMA... */
+		dev_kfree_skb(skb);
+		priv->stats.tx_dropped++;
+		return 0;
+	}
+	data = ADM5120_DMA_ADDR(skb->data) | ADM5120_DMA_OWN;
+	if (adm5120_txli == ADM5120_DMA_TXL-1)
+		data |= ADM5120_DMA_RINGEND;
+	dma->status =
+	    ((skb->len<ETH_ZLEN?ETH_ZLEN:skb->len) << ADM5120_DMA_LENSHIFT) |
+	    (0x1 << priv->port);
+
+	dma->len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
+	priv->stats.tx_packets++;
+	priv->stats.tx_bytes += skb->len;
+
+	/* free old skbs here instead of tx completion interrupt:
+	 * will hold some more memory allocated but reduces interrupts */
+	if (skbl[adm5120_txli]){
+		dev_kfree_skb(skbl[adm5120_txli]);
+	}
+	skbl[adm5120_txli] = skb;
+
+	dma->data = data; /* Here we enable the buffer for the TX DMA machine */
+	adm5120_set_reg(ADM5120_SEND_TRIG, ADM5120_SEND_TRIG_L);
+	if (++adm5120_txli == ADM5120_DMA_TXL)
+		adm5120_txli = 0;
+	return 0;
+}
+
+static void adm5120_tx_timeout(struct net_device *dev)
+{
+	printk(KERN_INFO "%s: TX timeout\n",dev->name);
+}
+
+static struct net_device_stats *adm5120_sw_stats(struct net_device *dev)
+{
+	struct adm5120_sw *priv = netdev_priv(dev);
+	int portmask;
+	unsigned long adm5120_cpup_conf_reg;
+
+	portmask = adm5120_eth_vlans[priv->port] & 0x3f;
+
+	adm5120_cpup_conf_reg = adm5120_get_reg(ADM5120_CPUP_CONF);
+
+	if (dev->flags & IFF_PROMISC)
+		adm5120_cpup_conf_reg &= ~((portmask << ADM5120_DISUNSHIFT) & ADM5120_DISUNALL);
+	else
+		adm5120_cpup_conf_reg |= (portmask << ADM5120_DISUNSHIFT);
+
+	if (dev->flags & IFF_PROMISC || dev->flags & IFF_ALLMULTI || dev->mc_count)
+		adm5120_cpup_conf_reg &= ~((portmask << ADM5120_DISMCSHIFT) & ADM5120_DISMCALL);
+	else
+		adm5120_cpup_conf_reg |= (portmask << ADM5120_DISMCSHIFT);
+
+		/* If there is any port configured to be in promiscuous mode, then the */
+		/* Bridge Test Mode has to be activated. This will result in           */
+		/* transporting also packets learned in another VLAN to be forwarded   */
+		/* to the CPU.                                                         */
+		/* The difficult scenario is when we want to build a bridge on the CPU.*/
+		/* Assume we have port0 and the CPU port in VLAN0 and port1 and the    */
+		/* CPU port in VLAN1. Now we build a bridge on the CPU between         */
+		/* VLAN0 and VLAN1. Both ports of the VLANs are set in promisc mode.   */
+		/* Now assume a packet with ethernet source address 99 enters port 0   */
+		/* It will be forwarded to the CPU because it is unknown. Then the     */
+		/* bridge in the CPU will send it to VLAN1 and it goes out at port 1.  */
+		/* When now a packet with ethernet destination address 99 comes in at  */
+		/* port 1 in VLAN1, then the switch has learned that this address is   */
+		/* located at port 0 in VLAN0. Therefore the switch will drop          */
+		/* this packet. In order to avoid this and to send the packet still    */
+		/* to the CPU, the Bridge Test Mode has to be activated.               */
+
+		/* Check if there is any vlan in promisc mode. */
+	if (~adm5120_cpup_conf_reg & ADM5120_DISUNALL)
+		adm5120_cpup_conf_reg |= ADM5120_BTM;  /* Set the BTM     */
+	else
+		adm5120_cpup_conf_reg &= ~ADM5120_BTM; /* Disable the BTM */
+
+	adm5120_set_reg(ADM5120_CPUP_CONF,adm5120_cpup_conf_reg);
+
+	return &((struct adm5120_sw *)netdev_priv(dev))->stats;
+}
+
+static void adm5120_set_multicast_list(struct net_device *dev)
+{
+	struct adm5120_sw *priv = netdev_priv(dev);
+	int portmask;
+
+	portmask = adm5120_eth_vlans[priv->port] & 0x3f;
+
+	if (dev->flags & IFF_PROMISC)
+		adm5120_set_reg(ADM5120_CPUP_CONF,
+		    adm5120_get_reg(ADM5120_CPUP_CONF) &
+		    ~((portmask << ADM5120_DISUNSHIFT) & ADM5120_DISUNALL));
+	else
+		adm5120_set_reg(ADM5120_CPUP_CONF,
+		    adm5120_get_reg(ADM5120_CPUP_CONF) |
+		    (portmask << ADM5120_DISUNSHIFT));
+
+	if (dev->flags & IFF_PROMISC || dev->flags & IFF_ALLMULTI ||
+	    dev->mc_count)
+		adm5120_set_reg(ADM5120_CPUP_CONF,
+		    adm5120_get_reg(ADM5120_CPUP_CONF) &
+		    ~((portmask << ADM5120_DISMCSHIFT) & ADM5120_DISMCALL));
+	else
+		adm5120_set_reg(ADM5120_CPUP_CONF,
+		    adm5120_get_reg(ADM5120_CPUP_CONF) |
+		    (portmask << ADM5120_DISMCSHIFT));
+}
+
+static void adm5120_write_mac(struct net_device *dev)
+{
+	struct adm5120_sw *priv = netdev_priv(dev);
+	unsigned char *mac = dev->dev_addr;
+
+	adm5120_set_reg(ADM5120_MAC_WT1,
+	    mac[2] | (mac[3]<<8) | (mac[4]<<16) | (mac[5]<<24));
+	adm5120_set_reg(ADM5120_MAC_WT0, (priv->port<<3) |
+	    (mac[0]<<16) | (mac[1]<<24) | ADM5120_MAC_WRITE | ADM5120_VLAN_EN);
+
+	while (!(adm5120_get_reg(ADM5120_MAC_WT0) & ADM5120_MAC_WRITE_DONE));
+}
+
+static int adm5120_sw_set_mac_address(struct net_device *dev, void *p)
+{
+	struct sockaddr *addr = p;
+
+	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+	adm5120_write_mac(dev);
+	return 0;
+}
+
+static int adm5120_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+	int err;
+	struct adm5120_sw_info info;
+	struct adm5120_sw *priv = netdev_priv(dev);
+
+	switch(cmd) {
+		case SIOCGADMINFO:
+			info.magic = 0x5120;
+			info.ports = adm5120_nrdevs;
+			info.vlan = priv->port;
+			err = copy_to_user(rq->ifr_data, &info, sizeof(info));
+			if (err)
+				return -EFAULT;
+			break;
+		case SIOCSMATRIX:
+			if (!capable(CAP_NET_ADMIN))
+				return -EPERM;
+			err = copy_from_user(adm5120_eth_vlans, rq->ifr_data,
+			    sizeof(adm5120_eth_vlans));
+			if (err)
+				return -EFAULT;
+			adm5120_set_vlan(adm5120_eth_vlans);
+			break;
+		case SIOCGMATRIX:
+			err = copy_to_user(rq->ifr_data, adm5120_eth_vlans,
+			    sizeof(adm5120_eth_vlans));
+			if (err)
+				return -EFAULT;
+			break;
+		case SIOCGETBW:
+			err = copy_to_user(rq->ifr_data, bw_matrix, sizeof(bw_matrix));
+			if (err)
+				return -EFAULT;
+			break;
+		case SIOCSETBW:
+			if (!capable(CAP_NET_ADMIN))
+				return -EPERM;
+			err = copy_from_user(bw_matrix, rq->ifr_data, sizeof(bw_matrix));
+			if (err)
+				return -EFAULT;
+			adm5120_set_bw(bw_matrix);
+			break;
+		default:
+			return -EOPNOTSUPP;
+	}
+	return 0;
+}
+
+static void adm5120_dma_tx_init(struct adm5120_dma *dma, struct sk_buff **skbl,
+    int num)
+{
+	memset(dma, 0, sizeof(struct adm5120_dma)*num);
+	dma[num-1].data |= ADM5120_DMA_RINGEND;
+	memset(skbl, 0, sizeof(struct skb*)*num);
+}
+
+static void adm5120_dma_rx_init(struct adm5120_dma *dma, struct sk_buff **skbl,
+    int num)
+{
+	int i;
+
+	memset(dma, 0, sizeof(struct adm5120_dma)*num);
+	for (i=0; i<num; i++) {
+		skbl[i] = dev_alloc_skb(ADM5120_DMA_RXSIZE+16);
+		if (!skbl[i]) {
+			i=num;
+			break;
+		}
+		skb_reserve(skbl[i], NET_IP_ALIGN);
+		adm5120_rx_dma_update(&dma[i], skbl[i], (num-1==i));
+	}
+}
+
+static int __init adm5120_sw_init(void)
+{
+	int i, err;
+	struct net_device *dev;
+
+	err = request_irq(ADM5120_IRQ_SWITCH, adm5120_sw_irq, 0, "ethernet switch", NULL);
+	if (err)
+		goto out;
+
+	adm5120_nrdevs = adm5120_eth_num_ports;
+
+	adm5120_set_reg(ADM5120_CPUP_CONF,
+	    ADM5120_DISCCPUPORT | ADM5120_CRC_PADDING |
+	    ADM5120_DISUNALL | ADM5120_DISMCALL);
+	adm5120_set_reg(ADM5120_PORT_CONF0, ADM5120_ENMC | ADM5120_ENBP | ADM5120_PORTDISALL);
+
+	adm5120_set_reg(ADM5120_PHY_CNTL2, adm5120_get_reg(ADM5120_PHY_CNTL2) |
+	    ADM5120_AUTONEG | ADM5120_NORMAL | ADM5120_AUTOMDIX);
+	adm5120_set_reg(ADM5120_PHY_CNTL3, adm5120_get_reg(ADM5120_PHY_CNTL3) |
+	    ADM5120_PHY_NTH);
+
+	/* Force all the packets from all ports are low priority */
+	adm5120_set_reg(ADM5120_PRI_CNTL, 0);
+
+	adm5120_set_reg(ADM5120_INT_MASK, ADM5120_INTMASKALL);
+	adm5120_set_reg(ADM5120_INT_ST, ADM5120_INTMASKALL);
+
+	adm5120_dma_txh = (void *)KSEG1ADDR((u32)adm5120_dma_txh_v);
+	adm5120_dma_txl = (void *)KSEG1ADDR((u32)adm5120_dma_txl_v);
+	adm5120_dma_rxh = (void *)KSEG1ADDR((u32)adm5120_dma_rxh_v);
+	adm5120_dma_rxl = (void *)KSEG1ADDR((u32)adm5120_dma_rxl_v);
+
+	adm5120_dma_tx_init(adm5120_dma_txh, adm5120_skb_txh, ADM5120_DMA_TXH);
+	adm5120_dma_tx_init(adm5120_dma_txl, adm5120_skb_txl, ADM5120_DMA_TXL);
+	adm5120_dma_rx_init(adm5120_dma_rxh, adm5120_skb_rxh, ADM5120_DMA_RXH);
+	adm5120_dma_rx_init(adm5120_dma_rxl, adm5120_skb_rxl, ADM5120_DMA_RXL);
+	adm5120_set_reg(ADM5120_SEND_HBADDR, KSEG1ADDR(adm5120_dma_txh));
+	adm5120_set_reg(ADM5120_SEND_LBADDR, KSEG1ADDR(adm5120_dma_txl));
+	adm5120_set_reg(ADM5120_RECEIVE_HBADDR, KSEG1ADDR(adm5120_dma_rxh));
+	adm5120_set_reg(ADM5120_RECEIVE_LBADDR, KSEG1ADDR(adm5120_dma_rxl));
+
+	for (i = 0; i < SW_DEVS; i++) {
+		adm5120_devs[i] = alloc_etherdev(sizeof(struct adm5120_sw));
+		if (!adm5120_devs[i]) {
+			err = -ENOMEM;
+			goto out_int;
+		}
+
+		dev = adm5120_devs[i];
+		SET_MODULE_OWNER(dev);
+		memset(netdev_priv(dev), 0, sizeof(struct adm5120_sw));
+		((struct adm5120_sw*)netdev_priv(dev))->port = i;
+		dev->base_addr = SW_BASE;
+		dev->irq = ADM5120_IRQ_SWITCH;
+		dev->open = adm5120_sw_open;
+		dev->hard_start_xmit = adm5120_sw_tx;
+		dev->stop = adm5120_sw_stop;
+		dev->get_stats = adm5120_sw_stats;
+		dev->set_multicast_list = adm5120_set_multicast_list;
+		dev->do_ioctl = adm5120_do_ioctl;
+		dev->tx_timeout = adm5120_tx_timeout;
+		dev->watchdog_timeo = ETH_TX_TIMEOUT;
+		dev->set_mac_address = adm5120_sw_set_mac_address;
+		dev->poll = adm5120_rx;
+		dev->weight = 64;
+
+		memcpy(dev->dev_addr, adm5120_eth_macs[i], 6);
+		adm5120_write_mac(dev);
+
+		if ((err = register_netdev(dev))) {
+			free_netdev(dev);
+			goto out_int;
+		}
+		printk(KERN_INFO "%s: ADM5120 switch port%d\n", dev->name, i);
+	}
+	/* setup vlan/port mapping after devs are filled up */
+	adm5120_set_vlan(adm5120_eth_vlans);
+
+	adm5120_set_reg(ADM5120_CPUP_CONF,
+	    ADM5120_CRC_PADDING | ADM5120_DISUNALL | ADM5120_DISMCALL);
+
+	return 0;
+
+out_int:
+	/* Undo everything that did succeed */
+	for (; i; i--) {
+		unregister_netdev(adm5120_devs[i-1]);
+		free_netdev(adm5120_devs[i-1]);
+	}
+	free_irq(ADM5120_IRQ_SWITCH, NULL);
+out:
+	printk(KERN_ERR "ADM5120 Ethernet switch init failed\n");
+	return err;
+}
+
+static void __exit adm5120_sw_exit(void)
+{
+	int i;
+
+	for (i = 0; i < SW_DEVS; i++) {
+		unregister_netdev(adm5120_devs[i]);
+		free_netdev(adm5120_devs[i]);
+	}
+
+	free_irq(ADM5120_IRQ_SWITCH, NULL);
+
+	for (i = 0; i < ADM5120_DMA_RXH; i++) {
+		if (!adm5120_skb_rxh[i])
+			break;
+		kfree_skb(adm5120_skb_rxh[i]);
+	}
+	for (i = 0; i < ADM5120_DMA_RXL; i++) {
+		if (!adm5120_skb_rxl[i])
+			break;
+		kfree_skb(adm5120_skb_rxl[i]);
+	}
+}
+
+module_init(adm5120_sw_init);
+module_exit(adm5120_sw_exit);