net: Add Marvell Kirkwood gigabit ethernet driver

This patch adds a egiga driver for the Marvell Kirkwood SoC's.

Contributors:
Yotam Admon <yotam@marvell.com>
Michael Blostein <michaelbl@marvell.com

Reviewed-by: Ronen Shitrit <rshitrit@marvell.com>
Acked-by: Stefan Rose <sr@denx.de>
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

3 files changed, 1168 insertions, 0 deletions

diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 575d9d9..c6097c3 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -40,6 +40,7 @@ COBJS-$(CONFIG_ENC28J60) += enc28j60.o
 COBJS-$(CONFIG_FSLDMAFEC) += fsl_mcdmafec.o mcfmii.o
 COBJS-$(CONFIG_GRETH) += greth.o
 COBJS-$(CONFIG_INCA_IP_SWITCH) += inca-ip_sw.o
+COBJS-$(CONFIG_KIRKWOOD_EGIGA) += kirkwood_egiga.o
 COBJS-$(CONFIG_DRIVER_KS8695ETH) += ks8695eth.o
 COBJS-$(CONFIG_DRIVER_LAN91C96) += lan91c96.o
 COBJS-$(CONFIG_MACB) += macb.o
diff --git a/drivers/net/kirkwood_egiga.c b/drivers/net/kirkwood_egiga.c
new file mode 100644
index 0000000..b43bbf2
--- /dev/null
+++ b/drivers/net/kirkwood_egiga.c
@@ -0,0 +1,664 @@
+/*
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * (C) Copyright 2003
+ * Ingo Assmus <ingo.assmus@keymile.com>
+ *
+ * based on - Driver for MV64360X ethernet ports
+ * Copyright (C) 2002 rabeeh@galileo.co.il
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <common.h>
+#include <net.h>
+#include <malloc.h>
+#include <miiphy.h>
+#include <asm/errno.h>
+#include <asm/types.h>
+#include <asm/byteorder.h>
+#include <asm/arch/kirkwood.h>
+#include "kirkwood_egiga.h"
+
+/*
+ * smi_reg_read - miiphy_read callback function.
+ *
+ * Returns 16bit phy register value, or 0xffff on error
+ */
+static int smi_reg_read(char *devname, u8 phy_adr, u8 reg_ofs, u16 * data)
+{
+	struct eth_device *dev = eth_get_dev_by_name(devname);
+	struct kwgbe_device *dkwgbe = to_dkwgbe(dev);
+	struct kwgbe_registers *regs = dkwgbe->regs;
+	u32 smi_reg;
+	volatile u32 timeout;
+
+	/* Phyadr read request */
+	if (phy_adr == 0xEE && reg_ofs == 0xEE) {
+		/* */
+		*data = (u16) (KWGBEREG_RD(regs->phyadr) & PHYADR_MASK);
+		return 0;
+	}
+	/* check parameters */
+	if (phy_adr > PHYADR_MASK) {
+		printf("Err..(%s) Invalid PHY address %d\n",
+			__FUNCTION__, phy_adr);
+		return -EFAULT;
+	}
+	if (reg_ofs > PHYREG_MASK) {
+		printf("Err..(%s) Invalid register offset %d\n",
+			__FUNCTION__, reg_ofs);
+		return -EFAULT;
+	}
+
+	timeout = KWGBE_PHY_SMI_TIMEOUT;
+	/* wait till the SMI is not busy */
+	do {
+		/* read smi register */
+		smi_reg = KWGBEREG_RD(regs->smi);
+		if (timeout-- == 0) {
+			printf("Err..(%s) SMI busy timeout\n", __FUNCTION__);
+			return -EFAULT;
+		}
+	} while (smi_reg & KWGBE_PHY_SMI_BUSY_MASK);
+
+	/* fill the phy address and regiser offset and read opcode */
+	smi_reg = (phy_adr << KWGBE_PHY_SMI_DEV_ADDR_OFFS)
+		| (reg_ofs << KWGBE_SMI_REG_ADDR_OFFS)
+		| KWGBE_PHY_SMI_OPCODE_READ;
+
+	/* write the smi register */
+	KWGBEREG_WR(regs->smi, smi_reg);
+
+	/*wait till read value is ready */
+	timeout = KWGBE_PHY_SMI_TIMEOUT;
+
+	do {
+		/* read smi register */
+		smi_reg = KWGBEREG_RD(regs->smi);
+		if (timeout-- == 0) {
+			printf("Err..(%s) SMI read ready timeout\n",
+				__FUNCTION__);
+			return -EFAULT;
+		}
+	} while (!(smi_reg & KWGBE_PHY_SMI_READ_VALID_MASK));
+
+	/* Wait for the data to update in the SMI register */
+	for (timeout = 0; timeout < KWGBE_PHY_SMI_TIMEOUT; timeout++) ;
+
+	*data = (u16) (KWGBEREG_RD(regs->smi) & KWGBE_PHY_SMI_DATA_MASK);
+
+	debug("%s:(adr %d, off %d) value= %04x\n", __FUNCTION__, phy_adr,
+		reg_ofs, *data);
+
+	return 0;
+}
+
+/*
+ * smi_reg_write - imiiphy_write callback function.
+ *
+ * Returns 0 if write succeed, -EINVAL on bad parameters
+ * -ETIME on timeout
+ */
+static int smi_reg_write(char *devname, u8 phy_adr, u8 reg_ofs, u16 data)
+{
+	struct eth_device *dev = eth_get_dev_by_name(devname);
+	struct kwgbe_device *dkwgbe = to_dkwgbe(dev);
+	struct kwgbe_registers *regs = dkwgbe->regs;
+	u32 smi_reg;
+	volatile u32 timeout;
+
+	/* Phyadr write request*/
+	if (phy_adr == 0xEE && reg_ofs == 0xEE) {
+		KWGBEREG_WR(regs->phyadr, data);
+		return 0;
+	}
+
+	/* check parameters */
+	if (phy_adr > PHYADR_MASK) {
+		printf("Err..(%s) Invalid phy address\n", __FUNCTION__);
+		return -EINVAL;
+	}
+	if (reg_ofs > PHYREG_MASK) {
+		printf("Err..(%s) Invalid register offset\n", __FUNCTION__);
+		return -EINVAL;
+	}
+
+	/* wait till the SMI is not busy */
+	timeout = KWGBE_PHY_SMI_TIMEOUT;
+	do {
+		/* read smi register */
+		smi_reg = KWGBEREG_RD(regs->smi);
+		if (timeout-- == 0) {
+			printf("Err..(%s) SMI busy timeout\n", __FUNCTION__);
+			return -ETIME;
+		}
+	} while (smi_reg & KWGBE_PHY_SMI_BUSY_MASK);
+
+	/* fill the phy addr and reg offset and write opcode and data */
+	smi_reg = (data << KWGBE_PHY_SMI_DATA_OFFS);
+	smi_reg |= (phy_adr << KWGBE_PHY_SMI_DEV_ADDR_OFFS)
+		| (reg_ofs << KWGBE_SMI_REG_ADDR_OFFS);
+	smi_reg &= ~KWGBE_PHY_SMI_OPCODE_READ;
+
+	/* write the smi register */
+	KWGBEREG_WR(regs->smi, smi_reg);
+
+	return 0;
+}
+
+/* Stop and checks all queues */
+static void stop_queue(u32 * qreg)
+{
+	u32 reg_data;
+
+	reg_data = readl(qreg);
+
+	if (reg_data & 0xFF) {
+		/* Issue stop command for active channels only */
+		writel((reg_data << 8), qreg);
+
+		/* Wait for all queue activity to terminate. */
+		do {
+			/*
+			 * Check port cause register that all queues
+			 * are stopped
+			 */
+			reg_data = readl(qreg);
+		}
+		while (reg_data & 0xFF);
+	}
+}
+
+/*
+ * set_access_control - Config address decode parameters for Ethernet unit
+ *
+ * This function configures the address decode parameters for the Gigabit
+ * Ethernet Controller according the given parameters struct.
+ *
+ * @regs	Register struct pointer.
+ * @param	Address decode parameter struct.
+ */
+static void set_access_control(struct kwgbe_registers *regs,
+				struct kwgbe_winparam *param)
+{
+	u32 access_prot_reg;
+
+	/* Set access control register */
+	access_prot_reg = KWGBEREG_RD(regs->epap);
+	/* clear window permission */
+	access_prot_reg &= (~(3 << (param->win * 2)));
+	access_prot_reg |= (param->access_ctrl << (param->win * 2));
+	KWGBEREG_WR(regs->epap, access_prot_reg);
+
+	/* Set window Size reg (SR) */
+	KWGBEREG_WR(regs->barsz[param->win].size,
+			(((param->size / 0x10000) - 1) << 16));
+
+	/* Set window Base address reg (BA) */
+	KWGBEREG_WR(regs->barsz[param->win].bar,
+			(param->target | param->attrib | param->base_addr));
+	/* High address remap reg (HARR) */
+	if (param->win < 4)
+		KWGBEREG_WR(regs->ha_remap[param->win], param->high_addr);
+
+	/* Base address enable reg (BARER) */
+	if (param->enable == 1)
+		KWGBEREG_BITS_RESET(regs->bare, (1 << param->win));
+	else
+		KWGBEREG_BITS_SET(regs->bare, (1 << param->win));
+}
+
+static void set_dram_access(struct kwgbe_registers *regs)
+{
+	struct kwgbe_winparam win_param;
+	int i;
+
+	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+		/* Set access parameters for DRAM bank i */
+		win_param.win = i;	/* Use Ethernet window i */
+		/* Window target - DDR */
+		win_param.target = KWGBE_TARGET_DRAM;
+		/* Enable full access */
+		win_param.access_ctrl = EWIN_ACCESS_FULL;
+		win_param.high_addr = 0;
+		/* Get bank base */
+		win_param.base_addr = kw_sdram_bar(i);
+		win_param.size = kw_sdram_bs(i);	/* Get bank size */
+		if (win_param.size == 0)
+			win_param.enable = 0;
+		else
+			win_param.enable = 1;	/* Enable the access */
+
+		/* Enable DRAM bank */
+		switch (i) {
+		case 0:
+			win_param.attrib = EBAR_DRAM_CS0;
+			break;
+		case 1:
+			win_param.attrib = EBAR_DRAM_CS1;
+			break;
+		case 2:
+			win_param.attrib = EBAR_DRAM_CS2;
+			break;
+		case 3:
+			win_param.attrib = EBAR_DRAM_CS3;
+			break;
+		default:
+			/* invalide bank, disable access */
+			win_param.enable = 0;
+			win_param.attrib = 0;
+			break;
+		}
+		/* Set the access control for address window(EPAPR) RD/WR */
+		set_access_control(regs, &win_param);
+	}
+}
+
+/*
+ * port_init_mac_tables - Clear all entrance in the UC, SMC and OMC tables
+ *
+ * Go through all the DA filter tables (Unicast, Special Multicast & Other
+ * Multicast) and set each entry to 0.
+ */
+static void port_init_mac_tables(struct kwgbe_registers *regs)
+{
+	int table_index;
+
+	/* Clear DA filter unicast table (Ex_dFUT) */
+	for (table_index = 0; table_index < 4; ++table_index)
+		KWGBEREG_WR(regs->dfut[table_index], 0);
+
+	for (table_index = 0; table_index < 64; ++table_index) {
+		/* Clear DA filter special multicast table (Ex_dFSMT) */
+		KWGBEREG_WR(regs->dfsmt[table_index], 0);
+		/* Clear DA filter other multicast table (Ex_dFOMT) */
+		KWGBEREG_WR(regs->dfomt[table_index], 0);
+	}
+}
+
+/*
+ * port_uc_addr - This function Set the port unicast address table
+ *
+ * This function locates the proper entry in the Unicast table for the
+ * specified MAC nibble and sets its properties according to function
+ * parameters.
+ * This function add/removes MAC addresses from the port unicast address
+ * table.
+ *
+ * @uc_nibble	Unicast MAC Address last nibble.
+ * @option      0 = Add, 1 = remove address.
+ *
+ * RETURN: 1 if output succeeded. 0 if option parameter is invalid.
+ */
+static int port_uc_addr(struct kwgbe_registers *regs, u8 uc_nibble,
+			int option)
+{
+	u32 unicast_reg;
+	u32 tbl_offset;
+	u32 reg_offset;
+
+	/* Locate the Unicast table entry */
+	uc_nibble = (0xf & uc_nibble);
+	/* Register offset from unicast table base */
+	tbl_offset = (uc_nibble / 4);
+	/* Entry offset within the above register */
+	reg_offset = uc_nibble % 4;
+
+	switch (option) {
+	case REJECT_MAC_ADDR:
+		/*
+		 * Clear accepts frame bit at specified unicast
+		 * DA table entry
+		 */
+		unicast_reg = KWGBEREG_RD(regs->dfut[tbl_offset]);
+		unicast_reg &= (0xFF << (8 * reg_offset));
+		KWGBEREG_WR(regs->dfut[tbl_offset], unicast_reg);
+		break;
+	case ACCEPT_MAC_ADDR:
+		/* Set accepts frame bit at unicast DA filter table entry */
+		unicast_reg = KWGBEREG_RD(regs->dfut[tbl_offset]);
+		unicast_reg &= (0xFF << (8 * reg_offset));
+		unicast_reg |= ((0x01 | (RXUQ << 1)) << (8 * reg_offset));
+		KWGBEREG_WR(regs->dfut[tbl_offset], unicast_reg);
+		break;
+	default:
+		return 0;
+	}
+	return 1;
+}
+
+/*
+ * port_uc_addr_set - This function Set the port Unicast address.
+ */
+static void port_uc_addr_set(struct kwgbe_registers *regs, u8 * p_addr)
+{
+	u32 mac_h;
+	u32 mac_l;
+
+	mac_l = (p_addr[4] << 8) | (p_addr[5]);
+	mac_h = (p_addr[0] << 24) | (p_addr[1] << 16) | (p_addr[2] << 8) |
+		(p_addr[3] << 0);
+
+	KWGBEREG_WR(regs->macal, mac_l);
+	KWGBEREG_WR(regs->macah, mac_h);
+
+	/* Accept frames of this address */
+	port_uc_addr(regs, p_addr[5], ACCEPT_MAC_ADDR);
+}
+
+/*
+ * kwgbe_init_rx_desc_ring - Curve a Rx chain desc list and buffer in memory.
+ */
+static void kwgbe_init_rx_desc_ring(struct kwgbe_device *dkwgbe)
+{
+	volatile struct kwgbe_rxdesc *p_rx_desc;
+	int i;
+
+	/* initialize the Rx descriptors ring */
+	p_rx_desc = dkwgbe->p_rxdesc;
+	for (i = 0; i < RINGSZ; i++) {
+		p_rx_desc->cmd_sts =
+			KWGBE_BUFFER_OWNED_BY_DMA | KWGBE_RX_EN_INTERRUPT;
+		p_rx_desc->buf_size = PKTSIZE_ALIGN;
+		p_rx_desc->byte_cnt = 0;
+		p_rx_desc->buf_ptr = dkwgbe->p_rxbuf + i * PKTSIZE_ALIGN;
+		if (i == (RINGSZ - 1))
+			p_rx_desc->nxtdesc_p = dkwgbe->p_rxdesc;
+		else {
+			p_rx_desc->nxtdesc_p = (struct kwgbe_rxdesc *)
+				((u32) p_rx_desc + KW_RXQ_DESC_ALIGNED_SIZE);
+			p_rx_desc = p_rx_desc->nxtdesc_p;
+		}
+	}
+	dkwgbe->p_rxdesc_curr = dkwgbe->p_rxdesc;
+}
+
+static int kwgbe_init(struct eth_device *dev)
+{
+	struct kwgbe_device *dkwgbe = to_dkwgbe(dev);
+	struct kwgbe_registers *regs = dkwgbe->regs;
+
+	/* setup RX rings */
+	kwgbe_init_rx_desc_ring(dkwgbe);
+
+	/* Clear the ethernet port interrupts */
+	KWGBEREG_WR(regs->ic, 0);
+	KWGBEREG_WR(regs->ice, 0);
+	/* Unmask RX buffer and TX end interrupt */
+	KWGBEREG_WR(regs->pim, INT_CAUSE_UNMASK_ALL);
+	/* Unmask phy and link status changes interrupts */
+	KWGBEREG_WR(regs->peim, INT_CAUSE_UNMASK_ALL_EXT);
+
+	set_dram_access(regs);
+	port_init_mac_tables(regs);
+	port_uc_addr_set(regs, dkwgbe->dev.enetaddr);
+
+	/* Assign port configuration and command. */
+	KWGBEREG_WR(regs->pxc, PRT_CFG_VAL);
+	KWGBEREG_WR(regs->pxcx, PORT_CFG_EXTEND_VALUE);
+	KWGBEREG_WR(regs->psc0, PORT_SERIAL_CONTROL_VALUE);
+	/* Disable port initially */
+	KWGBEREG_BITS_SET(regs->psc0, KWGBE_SERIAL_PORT_EN);
+
+	/* Assign port SDMA configuration */
+	KWGBEREG_WR(regs->sdc, PORT_SDMA_CFG_VALUE);
+	KWGBEREG_WR(regs->tqx[0].qxttbc, QTKNBKT_DEF_VAL);
+	KWGBEREG_WR(regs->tqx[0].tqxtbc, (QMTBS_DEF_VAL << 16) | QTKNRT_DEF_VAL);
+	/* Turn off the port/RXUQ bandwidth limitation */
+	KWGBEREG_WR(regs->pmtu, 0);
+
+	/* Set maximum receive buffer to 9700 bytes */
+	KWGBEREG_WR(regs->psc0,	KWGBE_MAX_RX_PACKET_9700BYTE
+			| (KWGBEREG_RD(regs->psc0) & MRU_MASK));
+
+	/*
+	 * Set ethernet MTU for leaky bucket mechanism to 0 - this will
+	 * disable the leaky bucket mechanism .
+	 */
+	KWGBEREG_WR(regs->pmtu, 0);
+
+	/* Assignment of Rx CRDB of given RXUQ */
+	KWGBEREG_WR(regs->rxcdp[RXUQ].rxcdp, (u32) dkwgbe->p_rxdesc_curr);
+	/* Enable port Rx. */
+	KWGBEREG_WR(regs->rqc, (1 << RXUQ));
+
+#if (defined (CONFIG_MII) || defined (CONFIG_CMD_MII)) \
+	 && defined (CONFIG_SYS_FAULT_ECHO_LINK_DOWN)
+	u16 phyadr;
+	miiphy_read(dev->name, 0xEE, 0xEE, &phyadr);
+	if (!miiphy_link(dev->name, phyadr)) {
+		printf("%s: No link on %s\n", __FUNCTION__, dev->name);
+		return -1;
+	}
+#endif
+	return 0;
+}
+
+static int kwgbe_halt(struct eth_device *dev)
+{
+	struct kwgbe_device *dkwgbe = to_dkwgbe(dev);
+	struct kwgbe_registers *regs = dkwgbe->regs;
+
+	/* Disable all gigE address decoder */
+	KWGBEREG_WR(regs->bare, 0x3f);
+
+	stop_queue(&regs->tqc);
+	stop_queue(&regs->rqc);
+
+	/* Enable port */
+	KWGBEREG_BITS_RESET(regs->psc0, KWGBE_SERIAL_PORT_EN);
+	/* Set port is not reset */
+	KWGBEREG_BITS_RESET(regs->psc1, 1 << 4);
+#ifdef CONFIG_SYS_MII_MODE
+	/* Set MMI interface up */
+	KWGBEREG_BITS_RESET(regs->psc1, 1 << 3);
+#endif
+	/* Disable & mask ethernet port interrupts */
+	KWGBEREG_WR(regs->ic, 0);
+	KWGBEREG_WR(regs->ice, 0);
+	KWGBEREG_WR(regs->pim, 0);
+	KWGBEREG_WR(regs->peim, 0);
+
+	return 0;
+}
+
+static int kwgbe_send(struct eth_device *dev, volatile void *dataptr,
+		      int datasize)
+{
+	struct kwgbe_device *dkwgbe = to_dkwgbe(dev);
+	struct kwgbe_registers *regs = dkwgbe->regs;
+	struct kwgbe_txdesc *p_txdesc = dkwgbe->p_txdesc;
+
+	if ((u32) dataptr & 0x07) {
+		printf("Err..(%s) xmit dataptr not 64bit aligned\n",
+			__FUNCTION__);
+		return -1;
+	}
+	p_txdesc->cmd_sts = KWGBE_ZERO_PADDING | KWGBE_GEN_CRC;
+	p_txdesc->cmd_sts |= KWGBE_TX_FIRST_DESC | KWGBE_TX_LAST_DESC;
+	p_txdesc->cmd_sts |= KWGBE_BUFFER_OWNED_BY_DMA;
+	p_txdesc->cmd_sts |= KWGBE_TX_EN_INTERRUPT;
+	p_txdesc->buf_ptr = (u8 *) dataptr;
+	p_txdesc->byte_cnt = datasize;
+
+	/* Apply send command using zeroth RXUQ */
+	KWGBEREG_WR(regs->tcqdp[TXUQ], (u32) p_txdesc);
+	KWGBEREG_WR(regs->tqc, (1 << TXUQ));
+
+	/*
+	 * wait for packet xmit completion
+	 */
+	while (p_txdesc->cmd_sts & KWGBE_BUFFER_OWNED_BY_DMA) {
+		/* return fail if error is detected */
+		if (p_txdesc->cmd_sts & (KWGBE_UR_ERROR | KWGBE_RL_ERROR)) {
+			printf("Err..(%s) in xmit packet\n", __FUNCTION__);
+			return -1;
+		}
+	};
+	return 0;
+}
+
+static int kwgbe_recv(struct eth_device *dev)
+{
+	volatile struct kwgbe_device *dkwgbe = to_dkwgbe(dev);
+	volatile struct kwgbe_rxdesc *p_rxdesc_curr = dkwgbe->p_rxdesc_curr;
+	volatile u32 timeout = 0;
+
+	/* wait untill rx packet available or timeout */
+	do {
+		if (timeout < KWGBE_PHY_SMI_TIMEOUT)
+			timeout++;
+		else {
+			debug("%s time out...\n", __FUNCTION__);
+			return -1;
+		}
+	} while (p_rxdesc_curr->cmd_sts & KWGBE_BUFFER_OWNED_BY_DMA);
+
+	if (p_rxdesc_curr->byte_cnt != 0) {
+		debug("%s: Received %d byte Packet @ 0x%x (cmd_sts= %08x)\n",
+			__FUNCTION__, (u32) p_rxdesc_curr->byte_cnt,
+			(u32) p_rxdesc_curr->buf_ptr,
+			(u32) p_rxdesc_curr->cmd_sts);
+	}
+
+	/*
+	 * In case received a packet without first/last bits on
+	 * OR the error summary bit is on,
+	 * the packets needs to be dropeed.
+	 */
+	if ((p_rxdesc_curr->cmd_sts &
+		(KWGBE_RX_FIRST_DESC | KWGBE_RX_LAST_DESC))
+		!= (KWGBE_RX_FIRST_DESC | KWGBE_RX_LAST_DESC)) {
+
+		printf("Err..(%s) Dropping packet spread on"
+			" multiple descriptors\n", __FUNCTION__);
+
+	} else if (p_rxdesc_curr->cmd_sts & KWGBE_ERROR_SUMMARY) {
+
+		printf("Err..(%s) Dropping packet with errors\n",
+			__FUNCTION__);
+
+	} else {
+		/* !!! call higher layer processing */
+		debug("%s: Sending Received packet to"
+			" upper layer (NetReceive)\n", __FUNCTION__);
+
+		/* let the upper layer handle the packet */
+		NetReceive((p_rxdesc_curr->buf_ptr + RX_BUF_OFFSET),
+			(int)(p_rxdesc_curr->byte_cnt - RX_BUF_OFFSET));
+	}
+	/*
+	 * free these descriptors and point next in the ring
+	 */
+	p_rxdesc_curr->cmd_sts =
+		KWGBE_BUFFER_OWNED_BY_DMA | KWGBE_RX_EN_INTERRUPT;
+	p_rxdesc_curr->buf_size = PKTSIZE_ALIGN;
+	p_rxdesc_curr->byte_cnt = 0;
+
+	dkwgbe->p_rxdesc_curr = p_rxdesc_curr->nxtdesc_p;
+	return 0;
+}
+
+int kirkwood_egiga_initialize(bd_t * bis)
+{
+	struct kwgbe_device *dkwgbe;
+	struct eth_device *dev;
+	int devnum;
+	char *s, buf[NAMESIZE * 2];
+	u8 used_ports[MAX_KWGBE_DEVS] = CONFIG_KIRKWOOD_EGIGA_PORTS;
+
+	for (devnum = 0; devnum < MAX_KWGBE_DEVS; devnum++) {
+		/*skip if port is configured not to use */
+		if (used_ports[devnum] == 0)
+			continue;
+
+		if (!(dkwgbe = malloc(sizeof(struct kwgbe_device))))
+			goto error1;
+
+		memset(dkwgbe, 0, sizeof(struct kwgbe_device));
+
+		if (!(dkwgbe->p_rxdesc =
+		      (struct kwgbe_rxdesc *)memalign(PKTALIGN,
+						KW_RXQ_DESC_ALIGNED_SIZE
+						* RINGSZ + 1)))
+			goto error2;
+
+		if (!(dkwgbe->p_rxbuf = (u8 *) memalign(PKTALIGN, RINGSZ
+							* PKTSIZE_ALIGN + 1)))
+			goto error3;
+
+		if (!(dkwgbe->p_txdesc = (struct kwgbe_txdesc *)
+		      memalign(PKTALIGN, sizeof(struct kwgbe_txdesc) + 1))) {
+			free(dkwgbe->p_rxbuf);
+		      error3:
+			free(dkwgbe->p_rxdesc);
+		      error2:
+			free(dkwgbe);
+		      error1:
+			printf("Err.. %s Failed to allocate memory\n",
+				__FUNCTION__);
+			return -1;
+		}
+
+		dev = &dkwgbe->dev;
+
+		/* must be less than NAMESIZE (16) */
+		sprintf(dev->name, "egiga%d", devnum);
+
+		/* Extract the MAC address from the environment */
+		switch (devnum) {
+		case 0:
+			dkwgbe->regs = (void *)KW_EGIGA0_BASE;
+			s = "ethaddr";
+			break;
+		case 1:
+			dkwgbe->regs = (void *)KW_EGIGA1_BASE;
+			s = "eth1addr";
+			break;
+		default:	/* this should never happen */
+			printf("Err..(%s) Invalid device number %d\n",
+				__FUNCTION__, devnum);
+			return -1;
+		}
+
+		while (!eth_getenv_enetaddr(s, dev->enetaddr)) {
+			/* Generate Ramdom MAC addresses if not set */
+			sprintf(buf, "00:50:43:%02x:%02x:%02x",
+				get_random_hex(), get_random_hex(),
+				get_random_hex());
+			setenv(s, buf);
+		}
+
+		dev->init = (void *)kwgbe_init;
+		dev->halt = (void *)kwgbe_halt;
+		dev->send = (void *)kwgbe_send;
+		dev->recv = (void *)kwgbe_recv;
+
+		eth_register(dev);
+
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+		miiphy_register(dev->name, smi_reg_read, smi_reg_write);
+		/* Set phy address of the port */
+		miiphy_write(dev->name, 0xEE, 0xEE, PHY_BASE_ADR + devnum);
+#endif
+	}
+	return 0;
diff --git a/drivers/net/kirkwood_egiga.h b/drivers/net/kirkwood_egiga.h
new file mode 100644
index 0000000..8b67c9c
--- /dev/null
+++ b/drivers/net/kirkwood_egiga.h
@@ -0,0 +1,503 @@
+/*
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * based on - Driver for MV64360X ethernet ports
+ * Copyright (C) 2002 rabeeh@galileo.co.il
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#ifndef __EGIGA_H__
+#define __EGIGA_H__
+
+#define MAX_KWGBE_DEVS	2	/*controller has two ports */
+
+/* PHY_BASE_ADR is board specific and can be configured */
+#if defined (CONFIG_PHY_BASE_ADR)
+#define PHY_BASE_ADR		CONFIG_PHY_BASE_ADR
+#else
+#define PHY_BASE_ADR		0x08	/* default phy base addr */
+#endif
+
+/* Constants */
+#define INT_CAUSE_UNMASK_ALL		0x0007ffff
+#define INT_CAUSE_UNMASK_ALL_EXT	0x0011ffff
+#define MRU_MASK			0xfff1ffff
+#define PHYADR_MASK			0x0000001f
+#define PHYREG_MASK			0x0000001f
+#define QTKNBKT_DEF_VAL			0x3fffffff
+#define QMTBS_DEF_VAL			0x000003ff
+#define QTKNRT_DEF_VAL			0x0000fcff
+#define RXUQ	0 /* Used Rx queue */
+#define TXUQ	0 /* Used Rx queue */
+
+#define to_dkwgbe(_kd) container_of(_kd, struct kwgbe_device, dev)
+#define KWGBEREG_WR(adr, val)		writel(val, &adr)
+#define KWGBEREG_RD(adr)		readl(&adr)
+#define KWGBEREG_BITS_RESET(adr, val)	writel(readl(&adr) & ~(val), &adr)
+#define KWGBEREG_BITS_SET(adr, val)	writel(readl(&adr) | val, &adr)
+
+/* Default port configuration value */
+#define PRT_CFG_VAL			( \
+	KWGBE_UCAST_MOD_NRML		| \
+	KWGBE_DFLT_RXQ(RXUQ)		| \
+	KWGBE_DFLT_RX_ARPQ(RXUQ)	| \
+	KWGBE_RX_BC_IF_NOT_IP_OR_ARP	| \
+	KWGBE_RX_BC_IF_IP		| \
+	KWGBE_RX_BC_IF_ARP		| \
+	KWGBE_CPTR_TCP_FRMS_DIS		| \
+	KWGBE_CPTR_UDP_FRMS_DIS		| \
+	KWGBE_DFLT_RX_TCPQ(RXUQ)	| \
+	KWGBE_DFLT_RX_UDPQ(RXUQ)	| \
+	KWGBE_DFLT_RX_BPDUQ(RXUQ))
+
+/* Default port extend configuration value */
+#define PORT_CFG_EXTEND_VALUE		\
+	KWGBE_SPAN_BPDU_PACKETS_AS_NORMAL	| \
+	KWGBE_PARTITION_DIS		| \
+	KWGBE_TX_CRC_GENERATION_EN
+
+#define GT_KWGBE_IPG_INT_RX(value)	((value & 0x3fff) << 8)
+
+/* Default sdma control value */
+#define PORT_SDMA_CFG_VALUE		( \
+	KWGBE_RX_BURST_SIZE_16_64BIT	| \
+	KWGBE_BLM_RX_NO_SWAP		| \
+	KWGBE_BLM_TX_NO_SWAP		| \
+	GT_KWGBE_IPG_INT_RX(RXUQ)	| \
+	KWGBE_TX_BURST_SIZE_16_64BIT)
+
+/* Default port serial control value */
+#define PORT_SERIAL_CONTROL_VALUE		( \
+	KWGBE_FORCE_LINK_PASS			| \
+	KWGBE_DIS_AUTO_NEG_FOR_DUPLX		| \
+	KWGBE_DIS_AUTO_NEG_FOR_FLOW_CTRL	| \
+	KWGBE_ADV_NO_FLOW_CTRL			| \
+	KWGBE_FORCE_FC_MODE_NO_PAUSE_DIS_TX	| \
+	KWGBE_FORCE_BP_MODE_NO_JAM		| \
+	(1 << 9) /* Reserved bit has to be 1 */	| \
+	KWGBE_DO_NOT_FORCE_LINK_FAIL		| \
+	KWGBE_EN_AUTO_NEG_SPEED_GMII		| \
+	KWGBE_DTE_ADV_0				| \
+	KWGBE_MIIPHY_MAC_MODE			| \
+	KWGBE_AUTO_NEG_NO_CHANGE		| \
+	KWGBE_MAX_RX_PACKET_1552BYTE		| \
+	KWGBE_CLR_EXT_LOOPBACK			| \
+	KWGBE_SET_FULL_DUPLEX_MODE		| \
+	KWGBE_DIS_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX)
+
+/* Tx WRR confoguration macros */
+#define PORT_MAX_TRAN_UNIT	0x24	/* MTU register (default) 9KByte */
+#define PORT_MAX_TOKEN_BUCKET_SIZE	0x_FFFF	/* PMTBS reg (default) */
+#define PORT_TOKEN_RATE		1023	/* PTTBRC reg (default) */
+/* MAC accepet/reject macros */
+#define ACCEPT_MAC_ADDR		0
+#define REJECT_MAC_ADDR		1
+/* Size of a Tx/Rx descriptor used in chain list data structure */
+#define KW_RXQ_DESC_ALIGNED_SIZE	\
+	(((sizeof(struct kwgbe_rxdesc) / PKTALIGN) + 1) * PKTALIGN)
+/* Buffer offset from buffer pointer */
+#define RX_BUF_OFFSET		0x2
+
+/* Port serial status reg (PSR) */
+#define KWGBE_INTERFACE_GMII_MII	0
+#define KWGBE_INTERFACE_PCM		1
+#define KWGBE_LINK_IS_DOWN		0
+#define KWGBE_LINK_IS_UP		(1 << 1)
+#define KWGBE_PORT_AT_HALF_DUPLEX	0
+#define KWGBE_PORT_AT_FULL_DUPLEX	(1 << 2)
+#define KWGBE_RX_FLOW_CTRL_DISD		0
+#define KWGBE_RX_FLOW_CTRL_ENBALED	(1 << 3)
+#define KWGBE_GMII_SPEED_100_10		0
+#define KWGBE_GMII_SPEED_1000		(1 << 4)
+#define KWGBE_MII_SPEED_10		0
+#define KWGBE_MII_SPEED_100		(1 << 5)
+#define KWGBE_NO_TX			0
+#define KWGBE_TX_IN_PROGRESS		(1 << 7)
+#define KWGBE_BYPASS_NO_ACTIVE		0
+#define KWGBE_BYPASS_ACTIVE		(1 << 8)
+#define KWGBE_PORT_NOT_AT_PARTN_STT	0
+#define KWGBE_PORT_AT_PARTN_STT		(1 << 9)
+#define KWGBE_PORT_TX_FIFO_NOT_EMPTY	0
+#define KWGBE_PORT_TX_FIFO_EMPTY	(1 << 10)
+
+/* These macros describes the Port configuration reg (Px_cR) bits */
+#define KWGBE_UCAST_MOD_NRML		0
+#define KWGBE_UNICAST_PROMISCUOUS_MODE	1
+#define KWGBE_DFLT_RXQ(_x)		(_x << 1)
+#define KWGBE_DFLT_RX_ARPQ(_x)		(_x << 4)
+#define KWGBE_RX_BC_IF_NOT_IP_OR_ARP	0
+#define KWGBE_REJECT_BC_IF_NOT_IP_OR_ARP (1 << 7)
+#define KWGBE_RX_BC_IF_IP		0
+#define KWGBE_REJECT_BC_IF_IP		(1 << 8)
+#define KWGBE_RX_BC_IF_ARP		0
+#define KWGBE_REJECT_BC_IF_ARP		(1 << 9)
+#define KWGBE_TX_AM_NO_UPDATE_ERR_SMRY	(1 << 12)
+#define KWGBE_CPTR_TCP_FRMS_DIS		0
+#define KWGBE_CPTR_TCP_FRMS_EN		(1 << 14)
+#define KWGBE_CPTR_UDP_FRMS_DIS		0
+#define KWGBE_CPTR_UDP_FRMS_EN		(1 << 15)
+#define KWGBE_DFLT_RX_TCPQ(_x)		(_x << 16)
+#define KWGBE_DFLT_RX_UDPQ(_x)		(_x << 19)
+#define KWGBE_DFLT_RX_BPDUQ(_x)		(_x << 22)
+#define KWGBE_DFLT_RX_TCP_CHKSUM_MODE	(1 << 25)
+
+/* These macros describes the Port configuration extend reg (Px_cXR) bits*/
+#define KWGBE_CLASSIFY_EN			1
+#define KWGBE_SPAN_BPDU_PACKETS_AS_NORMAL	0
+#define KWGBE_SPAN_BPDU_PACKETS_TO_RX_Q7	(1 << 1)
+#define KWGBE_PARTITION_DIS			0
+#define KWGBE_PARTITION_EN			(1 << 2)
+#define KWGBE_TX_CRC_GENERATION_EN		0
+#define KWGBE_TX_CRC_GENERATION_DIS		(1 << 3)
+
+/* These macros describes the Port Sdma configuration reg (SDCR) bits */
+#define KWGBE_RIFB				1
+#define KWGBE_RX_BURST_SIZE_1_64BIT		0
+#define KWGBE_RX_BURST_SIZE_2_64BIT		(1 << 1)
+#define KWGBE_RX_BURST_SIZE_4_64BIT		(1 << 2)
+#define KWGBE_RX_BURST_SIZE_8_64BIT		((1 << 2) | (1 << 1))
+#define KWGBE_RX_BURST_SIZE_16_64BIT		(1 << 3)
+#define KWGBE_BLM_RX_NO_SWAP			(1 << 4)
+#define KWGBE_BLM_RX_BYTE_SWAP			0
+#define KWGBE_BLM_TX_NO_SWAP			(1 << 5)
+#define KWGBE_BLM_TX_BYTE_SWAP			0
+#define KWGBE_DESCRIPTORS_BYTE_SWAP		(1 << 6)
+#define KWGBE_DESCRIPTORS_NO_SWAP		0
+#define KWGBE_TX_BURST_SIZE_1_64BIT		0
+#define KWGBE_TX_BURST_SIZE_2_64BIT		(1 << 22)
+#define KWGBE_TX_BURST_SIZE_4_64BIT		(1 << 23)
+#define KWGBE_TX_BURST_SIZE_8_64BIT		((1 << 23) | (1 << 22))
+#define KWGBE_TX_BURST_SIZE_16_64BIT		(1 << 24)
+
+/* These macros describes the Port serial control reg (PSCR) bits */
+#define KWGBE_SERIAL_PORT_DIS			0
+#define KWGBE_SERIAL_PORT_EN			1
+#define KWGBE_FORCE_LINK_PASS			(1 << 1)
+#define KWGBE_DO_NOT_FORCE_LINK_PASS		0
+#define KWGBE_EN_AUTO_NEG_FOR_DUPLX		0
+#define KWGBE_DIS_AUTO_NEG_FOR_DUPLX		(1 << 2)
+#define KWGBE_EN_AUTO_NEG_FOR_FLOW_CTRL		0
+#define KWGBE_DIS_AUTO_NEG_FOR_FLOW_CTRL	(1 << 3)
+#define KWGBE_ADV_NO_FLOW_CTRL			0
+#define KWGBE_ADV_SYMMETRIC_FLOW_CTRL		(1 << 4)
+#define KWGBE_FORCE_FC_MODE_NO_PAUSE_DIS_TX	0
+#define KWGBE_FORCE_FC_MODE_TX_PAUSE_DIS	(1 << 5)
+#define KWGBE_FORCE_BP_MODE_NO_JAM		0
+#define KWGBE_FORCE_BP_MODE_JAM_TX		(1 << 7)
+#define KWGBE_FORCE_BP_MODE_JAM_TX_ON_RX_ERR	(1 << 8)
+#define KWGBE_FORCE_LINK_FAIL			0
+#define KWGBE_DO_NOT_FORCE_LINK_FAIL		(1 << 10)
+#define KWGBE_DIS_AUTO_NEG_SPEED_GMII		(1 << 13)
+#define KWGBE_EN_AUTO_NEG_SPEED_GMII		0
+#define KWGBE_DTE_ADV_0				0
+#define KWGBE_DTE_ADV_1				(1 << 14)
+#define KWGBE_MIIPHY_MAC_MODE			0
+#define KWGBE_MIIPHY_PHY_MODE			(1 << 15)
+#define KWGBE_AUTO_NEG_NO_CHANGE		0
+#define KWGBE_RESTART_AUTO_NEG			(1 << 16)
+#define KWGBE_MAX_RX_PACKET_1518BYTE		0
+#define KWGBE_MAX_RX_PACKET_1522BYTE		(1 << 17)
+#define KWGBE_MAX_RX_PACKET_1552BYTE		(1 << 18)
+#define KWGBE_MAX_RX_PACKET_9022BYTE		((1 << 18) | (1 << 17))
+#define KWGBE_MAX_RX_PACKET_9192BYTE		(1 << 19)
+#define KWGBE_MAX_RX_PACKET_9700BYTE		((1 << 19) | (1 << 17))
+#define KWGBE_SET_EXT_LOOPBACK			(1 << 20)
+#define KWGBE_CLR_EXT_LOOPBACK			0
+#define KWGBE_SET_FULL_DUPLEX_MODE		(1 << 21)
+#define KWGBE_SET_HALF_DUPLEX_MODE		0
+#define KWGBE_EN_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX	(1 << 22)
+#define KWGBE_DIS_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX 0
+#define KWGBE_SET_GMII_SPEED_TO_10_100		0
+#define KWGBE_SET_GMII_SPEED_TO_1000		(1 << 23)
+#define KWGBE_SET_MII_SPEED_TO_10		0
+#define KWGBE_SET_MII_SPEED_TO_100		(1 << 24)
+
+/* SMI register fields */
+#define KWGBE_PHY_SMI_TIMEOUT		10000
+#define KWGBE_PHY_SMI_DATA_OFFS		0	/* Data */
+#define KWGBE_PHY_SMI_DATA_MASK		(0xffff << KWGBE_PHY_SMI_DATA_OFFS)
+#define KWGBE_PHY_SMI_DEV_ADDR_OFFS	16	/* PHY device address */
+#define KWGBE_PHY_SMI_DEV_ADDR_MASK	(PHYADR_MASK << KWGBE_PHY_SMI_DEV_ADDR_OFFS)
+#define KWGBE_SMI_REG_ADDR_OFFS		21	/* PHY device reg addr */
+#define KWGBE_SMI_REG_ADDR_MASK		(PHYADR_MASK << KWGBE_SMI_REG_ADDR_OFFS)
+#define KWGBE_PHY_SMI_OPCODE_OFFS	26	/* Write/Read opcode */
+#define KWGBE_PHY_SMI_OPCODE_MASK	(3 << KWGBE_PHY_SMI_OPCODE_OFFS)
+#define KWGBE_PHY_SMI_OPCODE_WRITE	(0 << KWGBE_PHY_SMI_OPCODE_OFFS)
+#define KWGBE_PHY_SMI_OPCODE_READ	(1 << KWGBE_PHY_SMI_OPCODE_OFFS)
+#define KWGBE_PHY_SMI_READ_VALID_MASK	(1 << 27)	/* Read Valid */
+#define KWGBE_PHY_SMI_BUSY_MASK		(1 << 28)	/* Busy */
+
+/* SDMA command status fields macros */
+/* Tx & Rx descriptors status */
+#define KWGBE_ERROR_SUMMARY		1
+/* Tx & Rx descriptors command */
+#define KWGBE_BUFFER_OWNED_BY_DMA	(1 << 31)
+/* Tx descriptors status */
+#define KWGBE_LC_ERROR			0
+#define KWGBE_UR_ERROR			(1 << 1)
+#define KWGBE_RL_ERROR			(1 << 2)
+#define KWGBE_LLC_SNAP_FORMAT		(1 << 9)
+
+/* Rx descriptors status */
+#define KWGBE_CRC_ERROR			0
+#define KWGBE_OVERRUN_ERROR		(1 << 1)
+#define KWGBE_MAX_FRAME_LENGTH_ERROR	(1 << 2)
+#define KWGBE_RESOURCE_ERROR		((1 << 2) | (1 << 1))
+#define KWGBE_VLAN_TAGGED		(1 << 19)
+#define KWGBE_BPDU_FRAME		(1 << 20)
+#define KWGBE_TCP_FRAME_OVER_IP_V_4	0
+#define KWGBE_UDP_FRAME_OVER_IP_V_4	(1 << 21)
+#define KWGBE_OTHER_FRAME_TYPE		(1 << 22)
+#define KWGBE_LAYER_2_IS_KWGBE_V_2	(1 << 23)
+#define KWGBE_FRAME_TYPE_IP_V_4		(1 << 24)
+#define KWGBE_FRAME_HEADER_OK		(1 << 25)
+#define KWGBE_RX_LAST_DESC		(1 << 26)
+#define KWGBE_RX_FIRST_DESC		(1 << 27)
+#define KWGBE_UNKNOWN_DESTINATION_ADDR	(1 << 28)
+#define KWGBE_RX_EN_INTERRUPT		(1 << 29)
+#define KWGBE_LAYER_4_CHECKSUM_OK	(1 << 30)
+
+/* Rx descriptors byte count */
+#define KWGBE_FRAME_FRAGMENTED		(1 << 2)
+
+/* Tx descriptors command */
+#define KWGBE_LAYER_4_CHECKSUM_FIRST_DESC	(1 << 10)
+#define KWGBE_FRAME_SET_TO_VLAN			(1 << 15)
+#define KWGBE_TCP_FRAME				0
+#define KWGBE_UDP_FRAME				(1 << 16)
+#define KWGBE_GEN_TCP_UDP_CHECKSUM		(1 << 17)
+#define KWGBE_GEN_IP_V_4_CHECKSUM		(1 << 18)
+#define KWGBE_ZERO_PADDING			(1 << 19)
+#define KWGBE_TX_LAST_DESC			(1 << 20)
+#define KWGBE_TX_FIRST_DESC			(1 << 21)
+#define KWGBE_GEN_CRC				(1 << 22)
+#define KWGBE_TX_EN_INTERRUPT			(1 << 23)
+#define KWGBE_AUTO_MODE				(1 << 30)
+
+/* Address decode parameters */
+/* Ethernet Base Address Register bits */
+#define EBAR_TARGET_DRAM			0x00000000
+#define EBAR_TARGET_DEVICE			0x00000001
+#define EBAR_TARGET_CBS				0x00000002
+#define EBAR_TARGET_PCI0			0x00000003
+#define EBAR_TARGET_PCI1			0x00000004
+#define EBAR_TARGET_CUNIT			0x00000005
+#define EBAR_TARGET_AUNIT			0x00000006
+#define EBAR_TARGET_GUNIT			0x00000007
+
+/* Window attrib */
+#define EBAR_DRAM_CS0				0x00000E00
+#define EBAR_DRAM_CS1				0x00000D00
+#define EBAR_DRAM_CS2				0x00000B00
+#define EBAR_DRAM_CS3				0x00000700
+
+/* DRAM Target interface */
+#define EBAR_DRAM_NO_CACHE_COHERENCY		0x00000000
+#define EBAR_DRAM_CACHE_COHERENCY_WT		0x00001000
+#define EBAR_DRAM_CACHE_COHERENCY_WB		0x00002000
+
+/* Device Bus Target interface */
+#define EBAR_DEVICE_DEVCS0			0x00001E00
+#define EBAR_DEVICE_DEVCS1			0x00001D00
+#define EBAR_DEVICE_DEVCS2			0x00001B00
+#define EBAR_DEVICE_DEVCS3			0x00001700
+#define EBAR_DEVICE_BOOTCS3			0x00000F00
+
+/* PCI Target interface */
+#define EBAR_PCI_BYTE_SWAP			0x00000000
+#define EBAR_PCI_NO_SWAP			0x00000100
+#define EBAR_PCI_BYTE_WORD_SWAP			0x00000200
+#define EBAR_PCI_WORD_SWAP			0x00000300
+#define EBAR_PCI_NO_SNOOP_NOT_ASSERT		0x00000000
+#define EBAR_PCI_NO_SNOOP_ASSERT		0x00000400
+#define EBAR_PCI_IO_SPACE			0x00000000
+#define EBAR_PCI_MEMORY_SPACE			0x00000800
+#define EBAR_PCI_REQ64_FORCE			0x00000000
+#define EBAR_PCI_REQ64_SIZE			0x00001000
+
+/* Window access control */
+#define EWIN_ACCESS_NOT_ALLOWED 0
+#define EWIN_ACCESS_READ_ONLY	1
+#define EWIN_ACCESS_FULL	((1 << 1) | 1)
+
+/* structures represents Controller registers */
+struct kwgbe_barsz {
+	u32 bar;
+	u32 size;
+};
+
+struct kwgbe_rxcdp {
+	struct kwgbe_rxdesc *rxcdp;
+	u32 rxcdp_pad[3];
+};
+
+struct kwgbe_tqx {
+	u32 qxttbc;
+	u32 tqxtbc;
+	u32 tqxac;
+	u32 tqxpad;
+};
+
+struct kwgbe_registers {
+	u32 phyadr;
+	u32 smi;
+	u32 euda;
+	u32 eudid;
+	u8 pad1[0x080 - 0x00c - 4];
+	u32 euic;
+	u32 euim;
+	u8 pad2[0x094 - 0x084 - 4];
+	u32 euea;
+	u32 euiae;
+	u8 pad3[0x0b0 - 0x098 - 4];
+	u32 euc;
+	u8 pad3a[0x200 - 0x0b0 - 4];
+	struct kwgbe_barsz barsz[6];
+	u8 pad4[0x280 - 0x22c - 4];
+	u32 ha_remap[4];
+	u32 bare;
+	u32 epap;
+	u8 pad5[0x400 - 0x294 - 4];
+	u32 pxc;
+	u32 pxcx;
+	u32 mii_ser_params;
+	u8 pad6[0x410 - 0x408 - 4];
+	u32 evlane;
+	u32 macal;
+	u32 macah;
+	u32 sdc;
+	u32 dscp[7];
+	u32 psc0;
+	u32 vpt2p;
+	u32 ps0;
+	u32 tqc;
+	u32 psc1;
+	u32 ps1;
+	u32 mrvl_header;
+	u8 pad7[0x460 - 0x454 - 4];
+	u32 ic;
+	u32 ice;
+	u32 pim;
+	u32 peim;
+	u8 pad8[0x474 - 0x46c - 4];
+	u32 pxtfut;
+	u32 pad9;
+	u32 pxmfs;
+	u32 pad10;
+	u32 pxdfc;
+	u32 pxofc;
+	u8 pad11[0x494 - 0x488 - 4];
+	u32 peuiae;
+	u8 pad12[0x4bc - 0x494 - 4];
+	u32 eth_type_prio;
+	u8 pad13[0x4dc - 0x4bc - 4];
+	u32 tqfpc;
+	u32 pttbrc;
+	u32 tqc1;
+	u32 pmtu;
+	u32 pmtbs;
+	u8 pad14[0x60c - 0x4ec - 4];
+	struct kwgbe_rxcdp rxcdp[7];
+	u32 rxcdp7;
+	u32 rqc;
+	struct kwgbe_txdesc *tcsdp;
+	u8 pad15[0x6c0 - 0x684 - 4];
+	struct kwgbe_txdesc *tcqdp[8];
+	u8 pad16[0x700 - 0x6dc - 4];
+	struct kwgbe_tqx tqx[8];
+	u32 pttbc;
+	u8 pad17[0x7a8 - 0x780 - 4];
+	u32 tqxipg0;
+	u32 pad18[3];
+	u32 tqxipg1;
+	u8 pad19[0x7c0 - 0x7b8 - 4];
+	u32 hitkninlopkt;
+	u32 hitkninasyncpkt;
+	u32 lotkninasyncpkt;
+	u32 pad20;
+	u32 ts;
+	u8 pad21[0x3000 - 0x27d0 - 4];
+	u32 pad20_1[32];	/* mib counter registes */
+	u8 pad22[0x3400 - 0x3000 - sizeof(u32) * 32];
+	u32 dfsmt[64];
+	u32 dfomt[64];
+	u32 dfut[4];
+	u8 pad23[0xe20c0 - 0x7360c - 4];
+	u32 pmbus_top_arbiter;
+};
+
+/* structures/enums needed by driver */
+enum kwgbe_adrwin {
+	KWGBE_WIN0,
+	KWGBE_WIN1,
+	KWGBE_WIN2,
+	KWGBE_WIN3,
+	KWGBE_WIN4,
+	KWGBE_WIN5
+};
+
+enum kwgbe_target {
+	KWGBE_TARGET_DRAM,
+	KWGBE_TARGET_DEV,
+	KWGBE_TARGET_CBS,
+	KWGBE_TARGET_PCI0,
+	KWGBE_TARGET_PCI1
+};
+
+struct kwgbe_winparam {
+	enum kwgbe_adrwin win;	/* Window number */
+	enum kwgbe_target target;	/* System targets */
+	u16 attrib;		/* BAR attrib. See above macros */
+	u32 base_addr;		/* Window base address in u32 form */
+	u32 high_addr;		/* Window high address in u32 form */
+	u32 size;		/* Size in MBytes. Must be % 64Kbyte. */
+	int enable;		/* Enable/disable access to the window. */
+	u16 access_ctrl;	/*Access ctrl register. see above macros */
+};
+
+struct kwgbe_rxdesc {
+	u32 cmd_sts;		/* Descriptor command status */
+	u16 buf_size;		/* Buffer size */
+	u16 byte_cnt;		/* Descriptor buffer byte count */
+	u8 *buf_ptr;		/* Descriptor buffer pointer */
+	struct kwgbe_rxdesc *nxtdesc_p;	/* Next descriptor pointer */
+};
+
+struct kwgbe_txdesc {
+	u32 cmd_sts;		/* Descriptor command status */
+	u16 l4i_chk;		/* CPU provided TCP Checksum */
+	u16 byte_cnt;		/* Descriptor buffer byte count */
+	u8 *buf_ptr;		/* Descriptor buffer ptr */
+	struct kwgbe_txdesc *nxtdesc_p;	/* Next descriptor ptr */
+};
+
+/* port device data struct */
+struct kwgbe_device {
+	struct eth_device dev;
+	struct kwgbe_registers *regs;
+	struct kwgbe_txdesc *p_txdesc;
+	struct kwgbe_rxdesc *p_rxdesc;
+	struct kwgbe_rxdesc *p_rxdesc_curr;
+	u8 *p_rxbuf;
+};
+
+#endif /* __EGIGA_H__ */