Merge branch 'master' of git://git.denx.de/u-boot-net

drivers/net/Makefile

@@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk
 LIB	:= $(obj)libnet.a
 
 COBJS-$(CONFIG_DRIVER_3C589) += 3c589.o
+COBJS-$(CONFIG_DRIVER_AX88180) += ax88180.o
 COBJS-$(CONFIG_BCM570x) += bcm570x.o bcm570x_autoneg.o 5701rls.o
 COBJS-$(CONFIG_BFIN_MAC) += bfin_mac.o
 COBJS-$(CONFIG_DRIVER_CS8900) += cs8900.o
@@ -44,10 +45,8 @@ COBJS-$(CONFIG_MCFFEC) += mcffec.o
 COBJS-$(CONFIG_MPC5xxx_FEC) += mpc5xxx_fec.o
 COBJS-$(CONFIG_MPC512x_FEC) += mpc512x_fec.o
 COBJS-$(CONFIG_NATSEMI) += natsemi.o
-ifeq ($(CONFIG_DRIVER_NE2000),y)
-COBJS-y += ne2000.o
-COBJS-$(CONFIG_DRIVER_AX88796L) += ax88796.o
-endif
+COBJS-$(CONFIG_DRIVER_NE2000) += ne2000.o ne2000_base.o
+COBJS-$(CONFIG_DRIVER_AX88796L) += ax88796.o ne2000_base.o
 COBJS-$(CONFIG_DRIVER_NETARMETH) += netarm_eth.o
 COBJS-$(CONFIG_NETCONSOLE) += netconsole.o
 COBJS-$(CONFIG_DRIVER_NS7520_ETHERNET) += ns7520_eth.o

drivers/net/ax88180.c

@@ -0,0 +1,727 @@
+/*
+ * ax88180: ASIX AX88180 Non-PCI Gigabit Ethernet u-boot driver
+ *
+ * This program is free software; you can distribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ * This program is distributed in the hope 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., 59 Temple Place - Suite 330, Boston MA 02111-1307,
+ * USA.
+ */
+
+/*
+ * ========================================================================
+ * ASIX AX88180 Non-PCI 16/32-bit Gigabit Ethernet Linux Driver
+ *
+ * The AX88180 Ethernet controller is a high performance and highly
+ * integrated local CPU bus Ethernet controller with embedded 40K bytes
+ * SRAM and supports both 16-bit and 32-bit SRAM-Like interfaces for any
+ * embedded systems.
+ * The AX88180 is a single chip 10/100/1000Mbps Gigabit Ethernet
+ * controller that supports both MII and RGMII interfaces and is
+ * compliant to IEEE 802.3, IEEE 802.3u and IEEE 802.3z standards.
+ *
+ * Please visit ASIX's web site (http://www.asix.com.tw) for more
+ * details.
+ *
+ * Module Name	: ax88180.c
+ * Date		: 2008-07-07
+ * History
+ * 09/06/2006	: New release for AX88180 US2 chip.
+ * 07/07/2008	: Fix up the coding style and using inline functions
+ *		  instead of macros
+ * ========================================================================
+ */
+#include <common.h>
+#include <command.h>
+#include <net.h>
+#include <malloc.h>
+#include "ax88180.h"
+
+/*
+ * ===========================================================================
+ * Local SubProgram Declaration
+ * ===========================================================================
+ */
+static void ax88180_rx_handler (struct eth_device *dev);
+static int ax88180_phy_initial (struct eth_device *dev);
+static void ax88180_meidia_config (struct eth_device *dev);
+static unsigned long get_CicadaPHY_meida_mode (struct eth_device *dev);
+static unsigned long get_MarvellPHY_meida_mode (struct eth_device *dev);
+static unsigned short ax88180_mdio_read (struct eth_device *dev,
+					 unsigned long regaddr);
+static void ax88180_mdio_write (struct eth_device *dev,
+				unsigned long regaddr, unsigned short regdata);
+
+/*
+ * ===========================================================================
+ * Local SubProgram Bodies
+ * ===========================================================================
+ */
+static int ax88180_mdio_check_complete (struct eth_device *dev)
+{
+	int us_cnt = 10000;
+	unsigned short tmpval;
+
+	/* MDIO read/write should not take more than 10 ms */
+	while (--us_cnt) {
+		tmpval = INW (dev, MDIOCTRL);
+		if (((tmpval & READ_PHY) == 0) && ((tmpval & WRITE_PHY) == 0))
+			break;
+	}
+
+	return us_cnt;
+}
+
+static unsigned short
+ax88180_mdio_read (struct eth_device *dev, unsigned long regaddr)
+{
+	struct ax88180_private *priv = (struct ax88180_private *)dev->priv;
+	unsigned long tmpval = 0;
+
+	OUTW (dev, (READ_PHY | (regaddr << 8) | priv->PhyAddr), MDIOCTRL);
+
+	if (ax88180_mdio_check_complete (dev))
+		tmpval = INW (dev, MDIODP);
+	else
+		printf ("Failed to read PHY register!\n");
+
+	return (unsigned short)(tmpval & 0xFFFF);
+}
+
+static void
+ax88180_mdio_write (struct eth_device *dev, unsigned long regaddr,
+		    unsigned short regdata)
+{
+	struct ax88180_private *priv = (struct ax88180_private *)dev->priv;
+
+	OUTW (dev, regdata, MDIODP);
+
+	OUTW (dev, (WRITE_PHY | (regaddr << 8) | priv->PhyAddr), MDIOCTRL);
+
+	if (!ax88180_mdio_check_complete (dev))
+		printf ("Failed to write PHY register!\n");
+}
+
+static int ax88180_phy_reset (struct eth_device *dev)
+{
+	unsigned short delay_cnt = 500;
+
+	ax88180_mdio_write (dev, BMCR, (PHY_RESET | AUTONEG_EN));
+
+	/* Wait for the reset to complete, or time out (500 ms) */
+	while (ax88180_mdio_read (dev, BMCR) & PHY_RESET) {
+		udelay (1000);
+		if (--delay_cnt == 0) {
+			printf ("Failed to reset PHY!\n");
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+static void ax88180_mac_reset (struct eth_device *dev)
+{
+	unsigned long tmpval;
+	unsigned char i;
+
+	struct {
+		unsigned short offset, value;
+	} program_seq[] = {
+		{
+		MISC, MISC_NORMAL}, {
+		RXINDICATOR, DEFAULT_RXINDICATOR}, {
+		TXCMD, DEFAULT_TXCMD}, {
+		TXBS, DEFAULT_TXBS}, {
+		TXDES0, DEFAULT_TXDES0}, {
+		TXDES1, DEFAULT_TXDES1}, {
+		TXDES2, DEFAULT_TXDES2}, {
+		TXDES3, DEFAULT_TXDES3}, {
+		TXCFG, DEFAULT_TXCFG}, {
+		MACCFG2, DEFAULT_MACCFG2}, {
+		MACCFG3, DEFAULT_MACCFG3}, {
+		TXLEN, DEFAULT_TXLEN}, {
+		RXBTHD0, DEFAULT_RXBTHD0}, {
+		RXBTHD1, DEFAULT_RXBTHD1}, {
+		RXFULTHD, DEFAULT_RXFULTHD}, {
+		DOGTHD0, DEFAULT_DOGTHD0}, {
+	DOGTHD1, DEFAULT_DOGTHD1},};
+
+	OUTW (dev, MISC_RESET_MAC, MISC);
+	tmpval = INW (dev, MISC);
+
+	for (i = 0; i < (sizeof (program_seq) / sizeof (program_seq[0])); i++)
+		OUTW (dev, program_seq[i].value, program_seq[i].offset);
+}
+
+static int ax88180_poll_tx_complete (struct eth_device *dev)
+{
+	struct ax88180_private *priv = (struct ax88180_private *)dev->priv;
+	unsigned long tmpval, txbs_txdp;
+	int TimeOutCnt = 10000;
+
+	txbs_txdp = 1 << priv->NextTxDesc;
+
+	while (TimeOutCnt--) {
+
+		tmpval = INW (dev, TXBS);
+
+		if ((tmpval & txbs_txdp) == 0)
+			break;
+
+		udelay (100);
+	}
+
+	if (TimeOutCnt)
+		return 0;
+	else
+		return -TimeOutCnt;
+}
+
+static void ax88180_rx_handler (struct eth_device *dev)
+{
+	struct ax88180_private *priv = (struct ax88180_private *)dev->priv;
+	unsigned long data_size;
+	unsigned short rxcurt_ptr, rxbound_ptr, next_ptr;
+	int i;
+#if defined (CONFIG_DRIVER_AX88180_16BIT)
+	unsigned short *rxdata = (unsigned short *)NetRxPackets[0];
+#else
+	unsigned long *rxdata = (unsigned long *)NetRxPackets[0];
+#endif
+	unsigned short count;
+
+	rxcurt_ptr = INW (dev, RXCURT);
+	rxbound_ptr = INW (dev, RXBOUND);
+	next_ptr = (rxbound_ptr + 1) & RX_PAGE_NUM_MASK;
+
+	debug ("ax88180: RX original RXBOUND=0x%04x,"
+	       " RXCURT=0x%04x\n", rxbound_ptr, rxcurt_ptr);
+
+	while (next_ptr != rxcurt_ptr) {
+
+		OUTW (dev, RX_START_READ, RXINDICATOR);
+
+		data_size = READ_RXBUF (dev) & 0xFFFF;
+
+		if ((data_size == 0) || (data_size > MAX_RX_SIZE)) {
+
+			OUTW (dev, RX_STOP_READ, RXINDICATOR);
+
+			ax88180_mac_reset (dev);
+			printf ("ax88180: Invalid Rx packet length!"
+				" (len=0x%04lx)\n", data_size);
+
+			debug ("ax88180: RX RXBOUND=0x%04x,"
+			       "RXCURT=0x%04x\n", rxbound_ptr, rxcurt_ptr);
+			return;
+		}
+
+		rxbound_ptr += (((data_size + 0xF) & 0xFFF0) >> 4) + 1;
+		rxbound_ptr &= RX_PAGE_NUM_MASK;
+
+		/* Comput access times */
+		count = (data_size + priv->PadSize) >> priv->BusWidth;
+
+		for (i = 0; i < count; i++) {
+			*(rxdata + i) = READ_RXBUF (dev);
+		}
+
+		OUTW (dev, RX_STOP_READ, RXINDICATOR);
+
+		/* Pass the packet up to the protocol layers. */
+		NetReceive (NetRxPackets[0], data_size);
+
+		OUTW (dev, rxbound_ptr, RXBOUND);
+
+		rxcurt_ptr = INW (dev, RXCURT);
+		rxbound_ptr = INW (dev, RXBOUND);
+		next_ptr = (rxbound_ptr + 1) & RX_PAGE_NUM_MASK;
+
+		debug ("ax88180: RX updated RXBOUND=0x%04x,"
+		       "RXCURT=0x%04x\n", rxbound_ptr, rxcurt_ptr);
+	}
+
+	return;
+}
+
+static int ax88180_phy_initial (struct eth_device *dev)
+{
+	struct ax88180_private *priv = (struct ax88180_private *)dev->priv;
+	unsigned long tmp_regval;
+
+	/* Check avaliable PHY chipset  */
+	priv->PhyAddr = MARVELL_88E1111_PHYADDR;
+	priv->PhyID0 = ax88180_mdio_read (dev, PHYIDR0);
+
+	if (priv->PhyID0 == MARVELL_88E1111_PHYIDR0) {
+
+		debug ("ax88180: Found Marvell 88E1111 PHY."
+		       " (PHY Addr=0x%x)\n", priv->PhyAddr);
+
+		tmp_regval = ax88180_mdio_read (dev, M88_EXT_SSR);
+		if ((tmp_regval & HWCFG_MODE_MASK) == RGMII_COPPER_MODE) {
+
+			ax88180_mdio_write (dev, M88_EXT_SCR, DEFAULT_EXT_SCR);
+			if (ax88180_phy_reset (dev) < 0)
+				return 0;
+			ax88180_mdio_write (dev, M88_IER, LINK_CHANGE_INT);
+		}
+	} else {
+
+		priv->PhyAddr = CICADA_CIS8201_PHYADDR;
+		priv->PhyID0 = ax88180_mdio_read (dev, PHYIDR0);
+
+		if (priv->PhyID0 == CICADA_CIS8201_PHYIDR0) {
+
+			debug ("ax88180: Found CICADA CIS8201 PHY"
+			       " chipset. (PHY Addr=0x%x)\n", priv->PhyAddr);
+			ax88180_mdio_write (dev, CIS_IMR,
+					    (CIS_INT_ENABLE | LINK_CHANGE_INT));
+
+			/* Set CIS_SMI_PRIORITY bit before force the media mode */
+			tmp_regval =
+			    ax88180_mdio_read (dev, CIS_AUX_CTRL_STATUS);
+			tmp_regval &= ~CIS_SMI_PRIORITY;
+			ax88180_mdio_write (dev, CIS_AUX_CTRL_STATUS,
+					    tmp_regval);
+		} else {
+			printf ("ax88180: Unknown PHY chipset!!\n");
+			return 0;
+		}
+	}
+
+	return 1;
+}
+
+static void ax88180_meidia_config (struct eth_device *dev)
+{
+	struct ax88180_private *priv = (struct ax88180_private *)dev->priv;
+	unsigned long bmcr_val, bmsr_val;
+	unsigned long rxcfg_val, maccfg0_val, maccfg1_val;
+	unsigned long RealMediaMode;
+	int i;
+
+	/* Waiting 2 seconds for PHY link stable */
+	for (i = 0; i < 20000; i++) {
+		bmsr_val = ax88180_mdio_read (dev, BMSR);
+		if (bmsr_val & LINKOK) {
+			break;
+		}
+		udelay (100);
+	}
+
+	bmsr_val = ax88180_mdio_read (dev, BMSR);
+	debug ("ax88180: BMSR=0x%04x\n", (unsigned int)bmsr_val);
+
+	if (bmsr_val & LINKOK) {
+		bmcr_val = ax88180_mdio_read (dev, BMCR);
+
+		if (bmcr_val & AUTONEG_EN) {
+
+			/*
+			 * Waiting for Auto-negotiation completion, this may
+			 * take up to 5 seconds.
+			 */
+			debug ("ax88180: Auto-negotiation is "
+			       "enabled. Waiting for NWay completion..\n");
+			for (i = 0; i < 50000; i++) {
+				bmsr_val = ax88180_mdio_read (dev, BMSR);
+				if (bmsr_val & AUTONEG_COMPLETE) {
+					break;
+				}
+				udelay (100);
+			}
+		} else
+			debug ("ax88180: Auto-negotiation is disabled.\n");
+
+		debug ("ax88180: BMCR=0x%04x, BMSR=0x%04x\n",
+		       (unsigned int)bmcr_val, (unsigned int)bmsr_val);
+
+		/* Get real media mode here */
+		if (priv->PhyID0 == MARVELL_88E1111_PHYIDR0) {
+			RealMediaMode = get_MarvellPHY_meida_mode (dev);
+		} else if (priv->PhyID0 == CICADA_CIS8201_PHYIDR0) {
+			RealMediaMode = get_CicadaPHY_meida_mode (dev);
+		} else {
+			RealMediaMode = MEDIA_1000FULL;
+		}
+
+		priv->LinkState = INS_LINK_UP;
+
+		switch (RealMediaMode) {
+		case MEDIA_1000FULL:
+			debug ("ax88180: 1000Mbps Full-duplex mode.\n");
+			rxcfg_val = RXFLOW_ENABLE | DEFAULT_RXCFG;
+			maccfg0_val = TXFLOW_ENABLE | DEFAULT_MACCFG0;
+			maccfg1_val = GIGA_MODE_EN | RXFLOW_EN |
+			    FULLDUPLEX | DEFAULT_MACCFG1;
+			break;
+
+		case MEDIA_1000HALF:
+			debug ("ax88180: 1000Mbps Half-duplex mode.\n");
+			rxcfg_val = DEFAULT_RXCFG;
+			maccfg0_val = DEFAULT_MACCFG0;
+			maccfg1_val = GIGA_MODE_EN | DEFAULT_MACCFG1;
+			break;
+
+		case MEDIA_100FULL:
+			debug ("ax88180: 100Mbps Full-duplex mode.\n");
+			rxcfg_val = RXFLOW_ENABLE | DEFAULT_RXCFG;
+			maccfg0_val = SPEED100 | TXFLOW_ENABLE
+			    | DEFAULT_MACCFG0;
+			maccfg1_val = RXFLOW_EN | FULLDUPLEX | DEFAULT_MACCFG1;
+			break;
+
+		case MEDIA_100HALF:
+			debug ("ax88180: 100Mbps Half-duplex mode.\n");
+			rxcfg_val = DEFAULT_RXCFG;
+			maccfg0_val = SPEED100 | DEFAULT_MACCFG0;
+			maccfg1_val = DEFAULT_MACCFG1;
+			break;
+
+		case MEDIA_10FULL:
+			debug ("ax88180: 10Mbps Full-duplex mode.\n");
+			rxcfg_val = RXFLOW_ENABLE | DEFAULT_RXCFG;
+			maccfg0_val = TXFLOW_ENABLE | DEFAULT_MACCFG0;
+			maccfg1_val = RXFLOW_EN | FULLDUPLEX | DEFAULT_MACCFG1;
+			break;
+
+		case MEDIA_10HALF:
+			debug ("ax88180: 10Mbps Half-duplex mode.\n");
+			rxcfg_val = DEFAULT_RXCFG;
+			maccfg0_val = DEFAULT_MACCFG0;
+			maccfg1_val = DEFAULT_MACCFG1;
+			break;
+		default:
+			debug ("ax88180: Unknow media mode.\n");
+			rxcfg_val = DEFAULT_RXCFG;
+			maccfg0_val = DEFAULT_MACCFG0;
+			maccfg1_val = DEFAULT_MACCFG1;
+
+			priv->LinkState = INS_LINK_DOWN;
+			break;
+		}
+
+	} else {
+		rxcfg_val = DEFAULT_RXCFG;
+		maccfg0_val = DEFAULT_MACCFG0;
+		maccfg1_val = DEFAULT_MACCFG1;
+
+		priv->LinkState = INS_LINK_DOWN;
+	}
+
+	OUTW (dev, rxcfg_val, RXCFG);
+	OUTW (dev, maccfg0_val, MACCFG0);
+	OUTW (dev, maccfg1_val, MACCFG1);
+
+	return;
+}
+
+static unsigned long get_MarvellPHY_meida_mode (struct eth_device *dev)
+{
+	unsigned long m88_ssr;
+	unsigned long MediaMode;
+
+	m88_ssr = ax88180_mdio_read (dev, M88_SSR);
+	switch (m88_ssr & SSR_MEDIA_MASK) {
+	case SSR_1000FULL:
+		MediaMode = MEDIA_1000FULL;
+		break;
+	case SSR_1000HALF:
+		MediaMode = MEDIA_1000HALF;
+		break;
+	case SSR_100FULL:
+		MediaMode = MEDIA_100FULL;
+		break;
+	case SSR_100HALF:
+		MediaMode = MEDIA_100HALF;
+		break;
+	case SSR_10FULL:
+		MediaMode = MEDIA_10FULL;
+		break;
+	case SSR_10HALF:
+		MediaMode = MEDIA_10HALF;
+		break;
+	default:
+		MediaMode = MEDIA_UNKNOWN;
+		break;
+	}
+
+	return MediaMode;
+}
+
+static unsigned long get_CicadaPHY_meida_mode (struct eth_device *dev)
+{
+	unsigned long tmp_regval;
+	unsigned long MediaMode;
+
+	tmp_regval = ax88180_mdio_read (dev, CIS_AUX_CTRL_STATUS);
+	switch (tmp_regval & CIS_MEDIA_MASK) {
+	case CIS_1000FULL:
+		MediaMode = MEDIA_1000FULL;
+		break;
+	case CIS_1000HALF:
+		MediaMode = MEDIA_1000HALF;
+		break;
+	case CIS_100FULL:
+		MediaMode = MEDIA_100FULL;
+		break;
+	case CIS_100HALF:
+		MediaMode = MEDIA_100HALF;
+		break;
+	case CIS_10FULL:
+		MediaMode = MEDIA_10FULL;
+		break;
+	case CIS_10HALF:
+		MediaMode = MEDIA_10HALF;
+		break;
+	default:
+		MediaMode = MEDIA_UNKNOWN;
+		break;
+	}
+
+	return MediaMode;
+}
+
+static void ax88180_halt (struct eth_device *dev)
+{
+	/* Disable AX88180 TX/RX functions */
+	OUTW (dev, WAKEMOD, CMD);
+}
+
+static int ax88180_init (struct eth_device *dev, bd_t * bd)
+{
+	struct ax88180_private *priv = (struct ax88180_private *)dev->priv;
+	unsigned short tmp_regval;
+
+	ax88180_mac_reset (dev);
+
+	/* Disable interrupt */
+	OUTW (dev, CLEAR_IMR, IMR);
+
+	/* Disable AX88180 TX/RX functions */
+	OUTW (dev, WAKEMOD, CMD);
+
+	/* Fill the MAC address */
+	tmp_regval =
+	    dev->enetaddr[0] | (((unsigned short)dev->enetaddr[1]) << 8);
+	OUTW (dev, tmp_regval, MACID0);
+
+	tmp_regval =
+	    dev->enetaddr[2] | (((unsigned short)dev->enetaddr[3]) << 8);
+	OUTW (dev, tmp_regval, MACID1);
+
+	tmp_regval =
+	    dev->enetaddr[4] | (((unsigned short)dev->enetaddr[5]) << 8);
+	OUTW (dev, tmp_regval, MACID2);
+
+	ax88180_meidia_config (dev);
+
+	OUTW (dev, DEFAULT_RXFILTER, RXFILTER);
+
+	/* Initial variables here */
+	priv->FirstTxDesc = TXDP0;
+	priv->NextTxDesc = TXDP0;
+
+	/* Check if there is any invalid interrupt status and clear it. */
+	OUTW (dev, INW (dev, ISR), ISR);
+
+	/* Start AX88180 TX/RX functions */
+	OUTW (dev, (RXEN | TXEN | WAKEMOD), CMD);
+
+	return 0;
+}
+
+/* Get a data block via Ethernet */
+static int ax88180_recv (struct eth_device *dev)
+{
+	unsigned short ISR_Status;
+	unsigned short tmp_regval;
+
+	/* Read and check interrupt status here. */
+	ISR_Status = INW (dev, ISR);
+
+	while (ISR_Status) {
+		/* Clear the interrupt status */
+		OUTW (dev, ISR_Status, ISR);
+
+		debug ("\nax88180: The interrupt status = 0x%04x\n",
+		       ISR_Status);
+
+		if (ISR_Status & ISR_PHY) {
+			/* Read ISR register once to clear PHY interrupt bit */
+			tmp_regval = ax88180_mdio_read (dev, M88_ISR);
+			ax88180_meidia_config (dev);
+		}
+
+		if ((ISR_Status & ISR_RX) || (ISR_Status & ISR_RXBUFFOVR)) {
+			ax88180_rx_handler (dev);
+		}
+
+		/* Read and check interrupt status again */
+		ISR_Status = INW (dev, ISR);
+	}
+
+	return 0;
+}
+
+/* Send a data block via Ethernet. */
+static int
+ax88180_send (struct eth_device *dev, volatile void *packet, int length)
+{
+	struct ax88180_private *priv = (struct ax88180_private *)dev->priv;
+	unsigned short TXDES_addr;
+	unsigned short txcmd_txdp, txbs_txdp;
+	unsigned short tmp_data;
+	int i;
+#if defined (CONFIG_DRIVER_AX88180_16BIT)
+	volatile unsigned short *txdata = (volatile unsigned short *)packet;
+#else
+	volatile unsigned long *txdata = (volatile unsigned long *)packet;
+#endif
+	unsigned short count;
+
+	if (priv->LinkState != INS_LINK_UP) {
+		return 0;
+	}
+
+	priv->FirstTxDesc = priv->NextTxDesc;
+	txbs_txdp = 1 << priv->FirstTxDesc;
+
+	debug ("ax88180: TXDP%d is available\n", priv->FirstTxDesc);
+
+	txcmd_txdp = priv->FirstTxDesc << 13;
+	TXDES_addr = TXDES0 + (priv->FirstTxDesc << 2);
+
+	OUTW (dev, (txcmd_txdp | length | TX_START_WRITE), TXCMD);
+
+	/* Comput access times */
+	count = (length + priv->PadSize) >> priv->BusWidth;
+
+	for (i = 0; i < count; i++) {
+		WRITE_TXBUF (dev, *(txdata + i));
+	}
+
+	OUTW (dev, txcmd_txdp | length, TXCMD);
+	OUTW (dev, txbs_txdp, TXBS);
+	OUTW (dev, (TXDPx_ENABLE | length), TXDES_addr);
+
+	priv->NextTxDesc = (priv->NextTxDesc + 1) & TXDP_MASK;
+
+	/*
+	 * Check the available transmit descriptor, if we had exhausted all
+	 * transmit descriptor ,then we have to wait for at least one free
+	 * descriptor
+	 */
+	txbs_txdp = 1 << priv->NextTxDesc;
+	tmp_data = INW (dev, TXBS);
+
+	if (tmp_data & txbs_txdp) {
+		if (ax88180_poll_tx_complete (dev) < 0) {
+			ax88180_mac_reset (dev);
+			priv->FirstTxDesc = TXDP0;
+			priv->NextTxDesc = TXDP0;
+			printf ("ax88180: Transmit time out occurred!\n");
+		}
+	}
+
+	return 0;
+}
+
+static void ax88180_read_mac_addr (struct eth_device *dev)
+{
+	unsigned short macid0_val, macid1_val, macid2_val;
+	unsigned short tmp_regval;
+	unsigned short i;
+
+	/* Reload MAC address from EEPROM */
+	OUTW (dev, RELOAD_EEPROM, PROMCTRL);
+
+	/* Waiting for reload eeprom completion */
+	for (i = 0; i < 500; i++) {
+		tmp_regval = INW (dev, PROMCTRL);
+		if ((tmp_regval & RELOAD_EEPROM) == 0)
+			break;
+		udelay (1000);
+	}
+
+	/* Get MAC addresses */
+	macid0_val = INW (dev, MACID0);
+	macid1_val = INW (dev, MACID1);
+	macid2_val = INW (dev, MACID2);
+
+	if (((macid0_val | macid1_val | macid2_val) != 0) &&
+	    ((macid0_val & 0x01) == 0)) {
+		dev->enetaddr[0] = (unsigned char)macid0_val;
+		dev->enetaddr[1] = (unsigned char)(macid0_val >> 8);
+		dev->enetaddr[2] = (unsigned char)macid1_val;
+		dev->enetaddr[3] = (unsigned char)(macid1_val >> 8);
+		dev->enetaddr[4] = (unsigned char)macid2_val;
+		dev->enetaddr[5] = (unsigned char)(macid2_val >> 8);
+	}
+}
+
+/*
+===========================================================================
+<<<<<<			Exported SubProgram Bodies		>>>>>>
+===========================================================================
+*/
+int ax88180_initialize (bd_t * bis)
+{
+	struct eth_device *dev;
+	struct ax88180_private *priv;
+
+	dev = (struct eth_device *)malloc (sizeof *dev);
+
+	if (NULL == dev)
+		return 0;
+
+	memset (dev, 0, sizeof *dev);
+
+	priv = (struct ax88180_private *)malloc (sizeof (*priv));
+
+	if (NULL == priv)
+		return 0;
+
+	memset (priv, 0, sizeof *priv);
+
+	sprintf (dev->name, "ax88180");
+	dev->iobase = AX88180_BASE;
+	dev->priv = priv;
+	dev->init = ax88180_init;
+	dev->halt = ax88180_halt;
+	dev->send = ax88180_send;
+	dev->recv = ax88180_recv;
+
+	priv->BusWidth = BUS_WIDTH_32;
+	priv->PadSize = 3;
+#if defined (CONFIG_DRIVER_AX88180_16BIT)
+	OUTW (dev, (START_BASE >> 8), BASE);
+	OUTW (dev, DECODE_EN, DECODE);
+
+	priv->BusWidth = BUS_WIDTH_16;
+	priv->PadSize = 1;
+#endif
+
+	ax88180_mac_reset (dev);
+
+	/* Disable interrupt */
+	OUTW (dev, CLEAR_IMR, IMR);
+
+	/* Disable AX88180 TX/RX functions */
+	OUTW (dev, WAKEMOD, CMD);
+
+	ax88180_read_mac_addr (dev);
+
+	eth_register (dev);
+
+	return ax88180_phy_initial (dev);
+
+}

drivers/net/ax88180.h

@@ -0,0 +1,412 @@
+/* ax88180.h: ASIX AX88180 Non-PCI Gigabit Ethernet u-boot driver */
+/*
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ */
+
+#ifndef _AX88180_H_
+#define _AX88180_H_
+
+#include <asm/types.h>
+#include <config.h>
+
+typedef enum _ax88180_link_state {
+	INS_LINK_DOWN,
+	INS_LINK_UP,
+	INS_LINK_UNKNOWN
+} ax88180_link_state;
+
+struct ax88180_private {
+	unsigned char BusWidth;
+	unsigned char PadSize;
+	unsigned short PhyAddr;
+	unsigned short PhyID0;
+	unsigned short FirstTxDesc;
+	unsigned short NextTxDesc;
+	ax88180_link_state LinkState;
+};
+
+#define BUS_WIDTH_16			1
+#define BUS_WIDTH_32			2
+
+#define ENABLE_JUMBO			1
+#define DISABLE_JUMBO			0
+
+#define ENABLE_BURST			1
+#define DISABLE_BURST			0
+
+#define NORMAL_RX_MODE		0
+#define RX_LOOPBACK_MODE		1
+#define RX_INIFINIT_LOOP_MODE		2
+#define TX_INIFINIT_LOOP_MODE		3
+
+#define DEFAULT_ETH_MTU		1500
+
+/* Jumbo packet size 4086 bytes included 4 bytes CRC*/
+#define MAX_JUMBO_MTU		4072
+
+/* Max Tx Jumbo size 4086 bytes included 4 bytes CRC */
+#define MAX_TX_JUMBO_SIZE		4086
+
+/* Max Rx Jumbo size is 15K Bytes */
+#define MAX_RX_SIZE			0x3C00
+
+#define MARVELL_88E1111_PHYADDR	0x18
+#define MARVELL_88E1111_PHYIDR0	0x0141
+
+#define CICADA_CIS8201_PHYADDR	0x01
+#define CICADA_CIS8201_PHYIDR0		0x000F
+
+#define MEDIA_AUTO			0
+#define MEDIA_1000FULL			1
+#define MEDIA_1000HALF			2
+#define MEDIA_100FULL			3
+#define MEDIA_100HALF			4
+#define MEDIA_10FULL			5
+#define MEDIA_10HALF			6
+#define MEDIA_UNKNOWN		7
+
+#define AUTO_MEDIA			0
+#define FORCE_MEDIA			1
+
+#define TXDP_MASK			3
+#define TXDP0				0
+#define TXDP1				1
+#define TXDP2				2
+#define TXDP3				3
+
+#define CMD_MAP_SIZE			0x100
+
+#if defined (CONFIG_DRIVER_AX88180_16BIT)
+  #define AX88180_MEMORY_SIZE		0x00004000
+  #define START_BASE			0x1000
+
+  #define RX_BUF_SIZE			0x1000
+  #define TX_BUF_SIZE			0x0F00
+
+  #define TX_BASE			START_BASE
+  #define CMD_BASE			(TX_BASE + TX_BUF_SIZE)
+  #define RX_BASE			(CMD_BASE + CMD_MAP_SIZE)
+#else
+  #define AX88180_MEMORY_SIZE	0x00010000
+
+  #define RX_BUF_SIZE			0x8000
+  #define TX_BUF_SIZE			0x7C00
+
+  #define RX_BASE			0x0000
+  #define TX_BASE			(RX_BASE + RX_BUF_SIZE)
+  #define CMD_BASE			(TX_BASE + TX_BUF_SIZE)
+#endif
+
+/* AX88180 Memory Mapping Definition */
+#define RXBUFFER_START			RX_BASE
+  #define RX_PACKET_LEN_OFFSET	0
+  #define RX_PAGE_NUM_MASK		0x7FF	/* RX pages 0~7FFh */
+#define TXBUFFER_START			TX_BASE
+
+/* AX88180 MAC Register Definition */
+#define DECODE		(0)
+  #define DECODE_EN		0x00000001
+#define BASE		(6)
+#define CMD		(CMD_BASE + 0x0000)
+  #define WAKEMOD		0x00000001
+  #define TXEN			0x00000100
+  #define RXEN			0x00000200
+  #define DEFAULT_CMD		WAKEMOD
+#define IMR		(CMD_BASE + 0x0004)
+  #define IMR_RXBUFFOVR	0x00000001
+  #define IMR_WATCHDOG	0x00000002
+  #define IMR_TX		0x00000008
+  #define IMR_RX		0x00000010
+  #define IMR_PHY		0x00000020
+  #define CLEAR_IMR		0x00000000
+  #define DEFAULT_IMR		(IMR_PHY | IMR_RX | IMR_TX |\
+					 IMR_RXBUFFOVR | IMR_WATCHDOG)
+#define ISR		(CMD_BASE + 0x0008)
+  #define ISR_RXBUFFOVR	0x00000001
+  #define ISR_WATCHDOG	0x00000002
+  #define ISR_TX			0x00000008
+  #define ISR_RX			0x00000010
+  #define ISR_PHY		0x00000020
+#define TXCFG		(CMD_BASE + 0x0010)
+  #define AUTOPAD_CRC		0x00000050
+  #define DEFAULT_TXCFG	AUTOPAD_CRC
+#define TXCMD		(CMD_BASE + 0x0014)
+  #define TXCMD_TXDP_MASK	0x00006000
+  #define TXCMD_TXDP0		0x00000000
+  #define TXCMD_TXDP1		0x00002000
+  #define TXCMD_TXDP2		0x00004000
+  #define TXCMD_TXDP3		0x00006000
+  #define TX_START_WRITE	0x00008000
+  #define TX_STOP_WRITE		0x00000000
+  #define DEFAULT_TXCMD	0x00000000
+#define TXBS		(CMD_BASE + 0x0018)
+  #define TXDP0_USED		0x00000001
+  #define TXDP1_USED		0x00000002
+  #define TXDP2_USED		0x00000004
+  #define TXDP3_USED		0x00000008
+  #define DEFAULT_TXBS		0x00000000
+#define TXDES0		(CMD_BASE + 0x0020)
+  #define TXDPx_ENABLE		0x00008000
+  #define TXDPx_LEN_MASK	0x00001FFF
+  #define DEFAULT_TXDES0	0x00000000
+#define TXDES1		(CMD_BASE + 0x0024)
+  #define TXDPx_ENABLE		0x00008000
+  #define TXDPx_LEN_MASK	0x00001FFF
+  #define DEFAULT_TXDES1	0x00000000
+#define TXDES2		(CMD_BASE + 0x0028)
+  #define TXDPx_ENABLE		0x00008000
+  #define TXDPx_LEN_MASK	0x00001FFF
+  #define DEFAULT_TXDES2	0x00000000
+#define TXDES3		(CMD_BASE + 0x002C)
+  #define TXDPx_ENABLE		0x00008000
+  #define TXDPx_LEN_MASK	0x00001FFF
+  #define DEFAULT_TXDES3	0x00000000
+#define RXCFG		(CMD_BASE + 0x0030)
+  #define RXBUFF_PROTECT	0x00000001
+  #define RXTCPCRC_CHECK	0x00000010
+  #define RXFLOW_ENABLE	0x00000100
+  #define DEFAULT_RXCFG	RXBUFF_PROTECT
+#define RXCURT		(CMD_BASE + 0x0034)
+  #define DEFAULT_RXCURT	0x00000000
+#define RXBOUND	(CMD_BASE + 0x0038)
+  #define DEFAULT_RXBOUND	0x7FF		//RX pages 0~7FFh
+#define MACCFG0	(CMD_BASE + 0x0040)
+  #define MACCFG0_BIT3_0	0x00000007
+  #define IPGT_VAL		0x00000150
+  #define TXFLOW_ENABLE	0x00001000
+  #define SPEED100		0x00008000
+  #define DEFAULT_MACCFG0	(IPGT_VAL | MACCFG0_BIT3_0)
+#define MACCFG1	(CMD_BASE + 0x0044)
+  #define RGMII_EN		0x00000002
+  #define RXFLOW_EN		0x00000020
+  #define FULLDUPLEX		0x00000040
+  #define MAX_JUMBO_LEN	0x00000780
+  #define RXJUMBO_EN		0x00000800
+  #define GIGA_MODE_EN	0x00001000
+  #define RXCRC_CHECK		0x00002000
+  #define RXPAUSE_DA_CHECK	0x00004000
+
+  #define JUMBO_LEN_4K		0x00000200
+  #define JUMBO_LEN_15K	0x00000780
+  #define DEFAULT_MACCFG1	(RXCRC_CHECK | RXPAUSE_DA_CHECK | \
+				 RGMII_EN)
+  #define CICADA_DEFAULT_MACCFG1	(RXCRC_CHECK | RXPAUSE_DA_CHECK)
+#define MACCFG2		(CMD_BASE + 0x0048)
+  #define MACCFG2_BIT15_8	0x00000100
+  #define JAM_LIMIT_MASK	0x000000FC
+  #define DEFAULT_JAM_LIMIT	0x00000064
+  #define DEFAULT_MACCFG2	MACCFG2_BIT15_8
+#define MACCFG3		(CMD_BASE + 0x004C)
+  #define IPGR2_VAL		0x0000000E
+  #define IPGR1_VAL		0x00000600
+  #define NOABORT		0x00008000
+  #define DEFAULT_MACCFG3	(IPGR1_VAL | IPGR2_VAL)
+#define TXPAUT		(CMD_BASE + 0x0054)
+  #define DEFAULT_TXPAUT	0x001FE000
+#define RXBTHD0		(CMD_BASE + 0x0058)
+  #define DEFAULT_RXBTHD0	0x00000300
+#define RXBTHD1		(CMD_BASE + 0x005C)
+  #define DEFAULT_RXBTHD1	0x00000600
+#define RXFULTHD	(CMD_BASE + 0x0060)
+  #define DEFAULT_RXFULTHD	0x00000100
+#define MISC		(CMD_BASE + 0x0068)
+  /* Normal operation mode */
+  #define MISC_NORMAL		0x00000003
+  /* Clear bit 0 to reset MAC */
+  #define MISC_RESET_MAC	0x00000002
+  /* Clear bit 1 to reset PHY */
+  #define MISC_RESET_PHY	0x00000001
+  /* Clear bit 0 and 1 to reset MAC and PHY */
+  #define MISC_RESET_MAC_PHY	0x00000000
+  #define DEFAULT_MISC		MISC_NORMAL
+#define MACID0		(CMD_BASE + 0x0070)
+#define MACID1		(CMD_BASE + 0x0074)
+#define MACID2		(CMD_BASE + 0x0078)
+#define TXLEN		(CMD_BASE + 0x007C)
+  #define DEFAULT_TXLEN	0x000005FC
+#define RXFILTER	(CMD_BASE + 0x0080)
+  #define RX_RXANY		0x00000001
+  #define RX_MULTICAST		0x00000002
+  #define RX_UNICAST		0x00000004
+  #define RX_BROADCAST	0x00000008
+  #define RX_MULTI_HASH	0x00000010
+  #define DISABLE_RXFILTER	0x00000000
+  #define DEFAULT_RXFILTER	(RX_BROADCAST + RX_UNICAST)
+#define MDIOCTRL	(CMD_BASE + 0x0084)
+  #define PHY_ADDR_MASK	0x0000001F
+  #define REG_ADDR_MASK	0x00001F00
+  #define READ_PHY		0x00004000
+  #define WRITE_PHY		0x00008000
+#define MDIODP		(CMD_BASE + 0x0088)
+#define GPIOCTRL	(CMD_BASE + 0x008C)
+#define RXINDICATOR	(CMD_BASE + 0x0090)
+  #define RX_START_READ	0x00000001
+  #define RX_STOP_READ		0x00000000
+  #define DEFAULT_RXINDICATOR	RX_STOP_READ
+#define TXST		(CMD_BASE + 0x0094)
+#define MDCCLKPAT	(CMD_BASE + 0x00A0)
+#define RXIPCRCCNT	(CMD_BASE + 0x00A4)
+#define RXCRCCNT	(CMD_BASE + 0x00A8)
+#define TXFAILCNT	(CMD_BASE + 0x00AC)
+#define PROMDP		(CMD_BASE + 0x00B0)
+#define PROMCTRL	(CMD_BASE + 0x00B4)
+  #define RELOAD_EEPROM	0x00000200
+#define MAXRXLEN	(CMD_BASE + 0x00B8)
+#define HASHTAB0	(CMD_BASE + 0x00C0)
+#define HASHTAB1	(CMD_BASE + 0x00C4)
+#define HASHTAB2	(CMD_BASE + 0x00C8)
+#define HASHTAB3	(CMD_BASE + 0x00CC)
+#define DOGTHD0	(CMD_BASE + 0x00E0)
+  #define DEFAULT_DOGTHD0	0x0000FFFF
+#define DOGTHD1	(CMD_BASE + 0x00E4)
+  #define START_WATCHDOG_TIMER	0x00008000
+  #define DEFAULT_DOGTHD1		0x00000FFF
+#define SOFTRST		(CMD_BASE + 0x00EC)
+  #define SOFTRST_NORMAL	0x00000003
+  #define SOFTRST_RESET_MAC	0x00000002
+
+/* External PHY Register Definition */
+#define BMCR		0x0000
+  #define LINE_SPEED_MSB	0x0040
+  #define DUPLEX_MODE		0x0100
+  #define RESTART_AUTONEG	0x0200
+  #define POWER_DOWN		0x0800
+  #define AUTONEG_EN		0x1000
+  #define LINE_SPEED_LSB	0x2000
+  #define PHY_RESET		0x8000
+
+  #define MEDIAMODE_MASK	(LINE_SPEED_MSB | LINE_SPEED_LSB |\
+				 DUPLEX_MODE)
+  #define BMCR_SPEED_1000	LINE_SPEED_MSB
+  #define BMCR_SPEED_100	LINE_SPEED_LSB
+  #define BMCR_SPEED_10	0x0000
+
+  #define BMCR_1000FULL	(BMCR_SPEED_1000 | DUPLEX_MODE)
+  #define BMCR_100FULL		(BMCR_SPEED_100 | DUPLEX_MODE)
+  #define BMCR_100HALF		BMCR_SPEED_100
+  #define BMCR_10FULL		DUPLEX_MODE
+  #define BMCR_10HALF		0x0000
+#define BMSR		0x0001
+  #define LINKOK		0x0004
+  #define AUTONEG_ENABLE_STS	0x0008
+  #define AUTONEG_COMPLETE	0x0020
+#define PHYIDR0		0x0002
+#define PHYIDR1		0x0003
+#define ANAR		0x0004
+  #define ANAR_PAUSE		0x0400
+  #define ANAR_100FULL		0x0100
+  #define ANAR_100HALF		0x0080
+  #define ANAR_10FULL		0x0040
+  #define ANAR_10HALF		0x0020
+  #define ANAR_8023BIT		0x0001
+#define ANLPAR		0x0005
+#define ANER		0x0006
+#define AUX_1000_CTRL	0x0009
+  #define ENABLE_1000HALF	0x0100
+  #define ENABLE_1000FULL	0x0200
+  #define DEFAULT_AUX_1000_CTRL	(ENABLE_1000HALF | ENABLE_1000FULL)
+#define AUX_1000_STATUS	0x000A
+  #define LP_1000HALF		0x0400
+  #define LP_1000FULL		0x0800
+
+/* Marvell 88E1111 Gigabit PHY Register Definition */
+#define M88_SSR		0x0011
+  #define SSR_SPEED_MASK	0xC000
+  #define SSR_SPEED_1000		0x8000
+  #define SSR_SPEED_100		0x4000
+  #define SSR_SPEED_10		0x0000
+  #define SSR_DUPLEX		0x2000
+  #define SSR_MEDIA_RESOLVED_OK	0x0800
+
+  #define SSR_MEDIA_MASK	(SSR_SPEED_MASK | SSR_DUPLEX)
+  #define SSR_1000FULL		(SSR_SPEED_1000 | SSR_DUPLEX)
+  #define SSR_1000HALF		SSR_SPEED_1000
+  #define SSR_100FULL		(SSR_SPEED_100 | SSR_DUPLEX)
+  #define SSR_100HALF		SSR_SPEED_100
+  #define SSR_10FULL		(SSR_SPEED_10 | SSR_DUPLEX)
+  #define SSR_10HALF		SSR_SPEED_10
+#define M88_IER		0x0012
+  #define LINK_CHANGE_INT	0x0400
+#define M88_ISR		0x0013
+  #define LINK_CHANGE_STATUS	0x0400
+#define M88_EXT_SCR	0x0014
+  #define RGMII_RXCLK_DELAY	0x0080
+  #define RGMII_TXCLK_DELAY	0x0002
+  #define DEFAULT_EXT_SCR	(RGMII_TXCLK_DELAY | RGMII_RXCLK_DELAY)
+#define M88_EXT_SSR	0x001B
+  #define HWCFG_MODE_MASK	0x000F
+  #define RGMII_COPPER_MODE	0x000B
+
+/* CICADA CIS8201 Gigabit PHY Register Definition */
+#define CIS_IMR		0x0019
+  #define CIS_INT_ENABLE	0x8000
+  #define CIS_LINK_CHANGE_INT	0x2000
+#define CIS_ISR		0x001A
+  #define CIS_INT_PENDING	0x8000
+  #define CIS_LINK_CHANGE_STATUS	0x2000
+#define CIS_AUX_CTRL_STATUS	0x001C
+  #define CIS_AUTONEG_COMPLETE	0x8000
+  #define CIS_SPEED_MASK	0x0018
+  #define CIS_SPEED_1000		0x0010
+  #define CIS_SPEED_100		0x0008
+  #define CIS_SPEED_10		0x0000
+  #define CIS_DUPLEX		0x0020
+
+  #define CIS_MEDIA_MASK	(CIS_SPEED_MASK | CIS_DUPLEX)
+  #define CIS_1000FULL		(CIS_SPEED_1000 | CIS_DUPLEX)
+  #define CIS_1000HALF		CIS_SPEED_1000
+  #define CIS_100FULL		(CIS_SPEED_100 | CIS_DUPLEX)
+  #define CIS_100HALF		CIS_SPEED_100
+  #define CIS_10FULL		(CIS_SPEED_10 | CIS_DUPLEX)
+  #define CIS_10HALF		CIS_SPEED_10
+  #define CIS_SMI_PRIORITY	0x0004
+
+static inline unsigned short INW (struct eth_device *dev, unsigned long addr)
+{
+	return le16_to_cpu (*(volatile unsigned short *) (addr + dev->iobase));
+}
+
+static inline void OUTW (struct eth_device *dev, unsigned short command, unsigned long addr)
+{
+	*(volatile unsigned short *) ((addr + dev->iobase)) = cpu_to_le16 (command);
+}
+
+/*
+ Access RXBUFFER_START/TXBUFFER_START to read RX buffer/write TX buffer
+*/
+#if defined (CONFIG_DRIVER_AX88180_16BIT)
+static inline unsigned short READ_RXBUF (struct eth_device *dev)
+{
+	return le16_to_cpu (*(volatile unsigned short *) (RXBUFFER_START + dev->iobase));
+}
+
+static inline void WRITE_TXBUF (struct eth_device *dev, unsigned short data)
+{
+	*(volatile unsigned short *) ((TXBUFFER_START + dev->iobase)) = cpu_to_le16 (data);
+}
+#else
+static inline unsigned long READ_RXBUF (struct eth_device *dev)
+{
+	return le32_to_cpu (*(volatile unsigned long *) (RXBUFFER_START + dev->iobase));
+}
+
+static inline void WRITE_TXBUF (struct eth_device *dev, unsigned long data)
+{
+	*(volatile unsigned long *) ((TXBUFFER_START + dev->iobase)) = cpu_to_le32 (data);
+}
+#endif
+
+#endif /* _AX88180_H_ */

drivers/net/ax88796.c

@@ -143,7 +143,7 @@ static void ax88796_mac_read(u8 *buff)
 	}
 }
 
-int get_prom(u8* mac_addr)
+int get_prom(u8* mac_addr, u8* base_addr)
 {
 	u8 prom[32];
 	int i;

drivers/net/ne2000.c

@@ -74,600 +74,11 @@ Add SNMP
 
 #include <common.h>
 #include <command.h>
-#include <net.h>
-#include <malloc.h>
-
-#define mdelay(n)	udelay((n)*1000)
-/* forward definition of function used for the uboot interface */
-void uboot_push_packet_len(int len);
-void uboot_push_tx_done(int key, int val);
-
-/*
- * Debugging details
- *
- * Set to perms of:
- * 0 disables all debug output
- * 1 for process debug output
- * 2 for added data IO output: get_reg, put_reg
- * 4 for packet allocation/free output
- * 8 for only startup status, so we can tell we're installed OK
- */
-#if 0
-#define DEBUG 0xf
-#else
-#define DEBUG 0
-#endif
-
-#if DEBUG & 1
-#define DEBUG_FUNCTION() do { printf("%s\n", __FUNCTION__); } while (0)
-#define DEBUG_LINE() do { printf("%d\n", __LINE__); } while (0)
-#define PRINTK(args...) printf(args)
-#else
-#define DEBUG_FUNCTION() do {} while(0)
-#define DEBUG_LINE() do {} while(0)
-#define PRINTK(args...)
-#endif
 
 /* NE2000 base header file */
 #include "ne2000_base.h"
 
-#if defined(CONFIG_DRIVER_AX88796L)
-/* AX88796L support */
-#include "ax88796.h"
-#else
-/* Basic NE2000 chip support */
-#include "ne2000.h"
-#endif
-
-static dp83902a_priv_data_t nic; /* just one instance of the card supported */
-
-static bool
-dp83902a_init(void)
-{
-	dp83902a_priv_data_t *dp = &nic;
-	u8* base;
-#if defined(NE2000_BASIC_INIT)
-	int i;
-#endif
-
-	DEBUG_FUNCTION();
-
-	base = dp->base;
-	if (!base)
-		return false;	/* No device found */
-
-	DEBUG_LINE();
-
-#if defined(NE2000_BASIC_INIT)
-	/* AX88796L doesn't need */
-	/* Prepare ESA */
-	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE1);	/* Select page 1 */
-	/* Use the address from the serial EEPROM */
-	for (i = 0; i < 6; i++)
-		DP_IN(base, DP_P1_PAR0+i, dp->esa[i]);
-	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE0);	/* Select page 0 */
-
-	printf("NE2000 - %s ESA: %02x:%02x:%02x:%02x:%02x:%02x\n",
-		"eeprom",
-		dp->esa[0],
-		dp->esa[1],
-		dp->esa[2],
-		dp->esa[3],
-		dp->esa[4],
-		dp->esa[5] );
-
-#endif	/* NE2000_BASIC_INIT */
-	return true;
-}
-
-static void
-dp83902a_stop(void)
-{
-	dp83902a_priv_data_t *dp = &nic;
-	u8 *base = dp->base;
-
-	DEBUG_FUNCTION();
-
-	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_STOP);	/* Brutal */
-	DP_OUT(base, DP_ISR, 0xFF);		/* Clear any pending interrupts */
-	DP_OUT(base, DP_IMR, 0x00);		/* Disable all interrupts */
-
-	dp->running = false;
-}
-
-/*
- * This function is called to "start up" the interface. It may be called
- * multiple times, even when the hardware is already running. It will be
- * called whenever something "hardware oriented" changes and should leave
- * the hardware ready to send/receive packets.
- */
-static void
-dp83902a_start(u8 * enaddr)
-{
-	dp83902a_priv_data_t *dp = &nic;
-	u8 *base = dp->base;
-	int i;
-
-	DEBUG_FUNCTION();
-
-	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_STOP); /* Brutal */
-	DP_OUT(base, DP_DCR, DP_DCR_INIT);
-	DP_OUT(base, DP_RBCH, 0);		/* Remote byte count */
-	DP_OUT(base, DP_RBCL, 0);
-	DP_OUT(base, DP_RCR, DP_RCR_MON);	/* Accept no packets */
-	DP_OUT(base, DP_TCR, DP_TCR_LOCAL);	/* Transmitter [virtually] off */
-	DP_OUT(base, DP_TPSR, dp->tx_buf1);	/* Transmitter start page */
-	dp->tx1 = dp->tx2 = 0;
-	dp->tx_next = dp->tx_buf1;
-	dp->tx_started = false;
-	dp->running = true;
-	DP_OUT(base, DP_PSTART, dp->rx_buf_start); /* Receive ring start page */
-	DP_OUT(base, DP_BNDRY, dp->rx_buf_end - 1); /* Receive ring boundary */
-	DP_OUT(base, DP_PSTOP, dp->rx_buf_end);	/* Receive ring end page */
-	dp->rx_next = dp->rx_buf_start - 1;
-	dp->running = true;
-	DP_OUT(base, DP_ISR, 0xFF);		/* Clear any pending interrupts */
-	DP_OUT(base, DP_IMR, DP_IMR_All);	/* Enable all interrupts */
-	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE1 | DP_CR_STOP);	/* Select page 1 */
-	DP_OUT(base, DP_P1_CURP, dp->rx_buf_start);	/* Current page - next free page for Rx */
-	dp->running = true;
-	for (i = 0; i < ETHER_ADDR_LEN; i++) {
-		/* FIXME */
-		/*((vu_short*)( base + ((DP_P1_PAR0 + i) * 2) +
-		 * 0x1400)) = enaddr[i];*/
-		DP_OUT(base, DP_P1_PAR0+i, enaddr[i]);
-	}
-	/* Enable and start device */
-	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
-	DP_OUT(base, DP_TCR, DP_TCR_NORMAL); /* Normal transmit operations */
-	DP_OUT(base, DP_RCR, DP_RCR_AB); /* Accept broadcast, no errors, no multicast */
-	dp->running = true;
-}
-
-/*
- * This routine is called to start the transmitter. It is split out from the
- * data handling routine so it may be called either when data becomes first
- * available or when an Tx interrupt occurs
- */
-
-static void
-dp83902a_start_xmit(int start_page, int len)
-{
-	dp83902a_priv_data_t *dp = (dp83902a_priv_data_t *) &nic;
-	u8 *base = dp->base;
-
-	DEBUG_FUNCTION();
-
-#if DEBUG & 1
-	printf("Tx pkt %d len %d\n", start_page, len);
-	if (dp->tx_started)
-		printf("TX already started?!?\n");
-#endif
-
-	DP_OUT(base, DP_ISR, (DP_ISR_TxP | DP_ISR_TxE));
-	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
-	DP_OUT(base, DP_TBCL, len & 0xFF);
-	DP_OUT(base, DP_TBCH, len >> 8);
-	DP_OUT(base, DP_TPSR, start_page);
-	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_TXPKT | DP_CR_START);
-
-	dp->tx_started = true;
-}
-
-/*
- * This routine is called to send data to the hardware. It is known a-priori
- * that there is free buffer space (dp->tx_next).
- */
-static void
-dp83902a_send(u8 *data, int total_len, u32 key)
-{
-	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
-	u8 *base = dp->base;
-	int len, start_page, pkt_len, i, isr;
-#if DEBUG & 4
-	int dx;
-#endif
-
-	DEBUG_FUNCTION();
-
-	len = pkt_len = total_len;
-	if (pkt_len < IEEE_8023_MIN_FRAME)
-		pkt_len = IEEE_8023_MIN_FRAME;
-
-	start_page = dp->tx_next;
-	if (dp->tx_next == dp->tx_buf1) {
-		dp->tx1 = start_page;
-		dp->tx1_len = pkt_len;
-		dp->tx1_key = key;
-		dp->tx_next = dp->tx_buf2;
-	} else {
-		dp->tx2 = start_page;
-		dp->tx2_len = pkt_len;
-		dp->tx2_key = key;
-		dp->tx_next = dp->tx_buf1;
-	}
-
-#if DEBUG & 5
-	printf("TX prep page %d len %d\n", start_page, pkt_len);
-#endif
-
-	DP_OUT(base, DP_ISR, DP_ISR_RDC);	/* Clear end of DMA */
-	{
-		/*
-		 * Dummy read. The manual sez something slightly different,
-		 * but the code is extended a bit to do what Hitachi's monitor
-		 * does (i.e., also read data).
-		 */
-
-		u16 tmp;
-		int len = 1;
-
-		DP_OUT(base, DP_RSAL, 0x100 - len);
-		DP_OUT(base, DP_RSAH, (start_page - 1) & 0xff);
-		DP_OUT(base, DP_RBCL, len);
-		DP_OUT(base, DP_RBCH, 0);
-		DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_RDMA | DP_CR_START);
-		DP_IN_DATA(dp->data, tmp);
-	}
-
-#ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_TX_DMA
-	/*
-	 * Stall for a bit before continuing to work around random data
-	 * corruption problems on some platforms.
-	 */
-	CYGACC_CALL_IF_DELAY_US(1);
-#endif
-
-	/* Send data to device buffer(s) */
-	DP_OUT(base, DP_RSAL, 0);
-	DP_OUT(base, DP_RSAH, start_page);
-	DP_OUT(base, DP_RBCL, pkt_len & 0xFF);
-	DP_OUT(base, DP_RBCH, pkt_len >> 8);
-	DP_OUT(base, DP_CR, DP_CR_WDMA | DP_CR_START);
-
-	/* Put data into buffer */
-#if DEBUG & 4
-	printf(" sg buf %08lx len %08x\n ", (u32)data, len);
-	dx = 0;
-#endif
-	while (len > 0) {
-#if DEBUG & 4
-		printf(" %02x", *data);
-		if (0 == (++dx % 16)) printf("\n ");
-#endif
-
-		DP_OUT_DATA(dp->data, *data++);
-		len--;
-	}
-#if DEBUG & 4
-	printf("\n");
-#endif
-	if (total_len < pkt_len) {
-#if DEBUG & 4
-		printf("  + %d bytes of padding\n", pkt_len - total_len);
-#endif
-		/* Padding to 802.3 length was required */
-		for (i = total_len; i < pkt_len;) {
-			i++;
-			DP_OUT_DATA(dp->data, 0);
-		}
-	}
-
-#ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_TX_DMA
-	/*
-	 * After last data write, delay for a bit before accessing the
-	 * device again, or we may get random data corruption in the last
-	 * datum (on some platforms).
-	 */
-	CYGACC_CALL_IF_DELAY_US(1);
-#endif
-
-	/* Wait for DMA to complete */
-	do {
-		DP_IN(base, DP_ISR, isr);
-	} while ((isr & DP_ISR_RDC) == 0);
-
-	/* Then disable DMA */
-	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
-
-	/* Start transmit if not already going */
-	if (!dp->tx_started) {
-		if (start_page == dp->tx1) {
-			dp->tx_int = 1; /* Expecting interrupt from BUF1 */
-		} else {
-			dp->tx_int = 2; /* Expecting interrupt from BUF2 */
-		}
-		dp83902a_start_xmit(start_page, pkt_len);
-	}
-}
-
-/*
- * This function is called when a packet has been received. It's job is
- * to prepare to unload the packet from the hardware. Once the length of
- * the packet is known, the upper layer of the driver can be told. When
- * the upper layer is ready to unload the packet, the internal function
- * 'dp83902a_recv' will be called to actually fetch it from the hardware.
- */
-static void
-dp83902a_RxEvent(void)
-{
-	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
-	u8 *base = dp->base;
-	u8 rsr;
-	u8 rcv_hdr[4];
-	int i, len, pkt, cur;
-
-	DEBUG_FUNCTION();
-
-	DP_IN(base, DP_RSR, rsr);
-	while (true) {
-		/* Read incoming packet header */
-		DP_OUT(base, DP_CR, DP_CR_PAGE1 | DP_CR_NODMA | DP_CR_START);
-		DP_IN(base, DP_P1_CURP, cur);
-		DP_OUT(base, DP_P1_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
-		DP_IN(base, DP_BNDRY, pkt);
-
-		pkt += 1;
-		if (pkt == dp->rx_buf_end)
-			pkt = dp->rx_buf_start;
-
-		if (pkt == cur) {
-			break;
-		}
-		DP_OUT(base, DP_RBCL, sizeof(rcv_hdr));
-		DP_OUT(base, DP_RBCH, 0);
-		DP_OUT(base, DP_RSAL, 0);
-		DP_OUT(base, DP_RSAH, pkt);
-		if (dp->rx_next == pkt) {
-			if (cur == dp->rx_buf_start)
-				DP_OUT(base, DP_BNDRY, dp->rx_buf_end - 1);
-			else
-				DP_OUT(base, DP_BNDRY, cur - 1); /* Update pointer */
-			return;
-		}
-		dp->rx_next = pkt;
-		DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
-		DP_OUT(base, DP_CR, DP_CR_RDMA | DP_CR_START);
-#ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_RX_DMA
-		CYGACC_CALL_IF_DELAY_US(10);
-#endif
-
-		/* read header (get data size)*/
-		for (i = 0; i < sizeof(rcv_hdr);) {
-			DP_IN_DATA(dp->data, rcv_hdr[i++]);
-		}
-
-#if DEBUG & 5
-		printf("rx hdr %02x %02x %02x %02x\n",
-			rcv_hdr[0], rcv_hdr[1], rcv_hdr[2], rcv_hdr[3]);
-#endif
-		len = ((rcv_hdr[3] << 8) | rcv_hdr[2]) - sizeof(rcv_hdr);
-
-		/* data read */
-		uboot_push_packet_len(len);
-
-		if (rcv_hdr[1] == dp->rx_buf_start)
-			DP_OUT(base, DP_BNDRY, dp->rx_buf_end - 1);
-		else
-			DP_OUT(base, DP_BNDRY, rcv_hdr[1] - 1); /* Update pointer */
-	}
-}
-
-/*
- * This function is called as a result of the "eth_drv_recv()" call above.
- * It's job is to actually fetch data for a packet from the hardware once
- * memory buffers have been allocated for the packet. Note that the buffers
- * may come in pieces, using a scatter-gather list. This allows for more
- * efficient processing in the upper layers of the stack.
- */
-static void
-dp83902a_recv(u8 *data, int len)
-{
-	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
-	u8 *base = dp->base;
-	int i, mlen;
-	u8 saved_char = 0;
-	bool saved;
-#if DEBUG & 4
-	int dx;
-#endif
-
-	DEBUG_FUNCTION();
-
-#if DEBUG & 5
-	printf("Rx packet %d length %d\n", dp->rx_next, len);
-#endif
-
-	/* Read incoming packet data */
-	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
-	DP_OUT(base, DP_RBCL, len & 0xFF);
-	DP_OUT(base, DP_RBCH, len >> 8);
-	DP_OUT(base, DP_RSAL, 4);		/* Past header */
-	DP_OUT(base, DP_RSAH, dp->rx_next);
-	DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
-	DP_OUT(base, DP_CR, DP_CR_RDMA | DP_CR_START);
-#ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_RX_DMA
-	CYGACC_CALL_IF_DELAY_US(10);
-#endif
-
-	saved = false;
-	for (i = 0; i < 1; i++) {
-		if (data) {
-			mlen = len;
-#if DEBUG & 4
-			printf(" sg buf %08lx len %08x \n", (u32) data, mlen);
-			dx = 0;
-#endif
-			while (0 < mlen) {
-				/* Saved byte from previous loop? */
-				if (saved) {
-					*data++ = saved_char;
-					mlen--;
-					saved = false;
-					continue;
-				}
-
-				{
-					u8 tmp;
-					DP_IN_DATA(dp->data, tmp);
-#if DEBUG & 4
-					printf(" %02x", tmp);
-					if (0 == (++dx % 16)) printf("\n ");
-#endif
-					*data++ = tmp;;
-					mlen--;
-				}
-			}
-#if DEBUG & 4
-			printf("\n");
-#endif
-		}
-	}
-}
-
-static void
-dp83902a_TxEvent(void)
-{
-	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
-	u8 *base = dp->base;
-	u8 tsr;
-	u32 key;
-
-	DEBUG_FUNCTION();
-
-	DP_IN(base, DP_TSR, tsr);
-	if (dp->tx_int == 1) {
-		key = dp->tx1_key;
-		dp->tx1 = 0;
-	} else {
-		key = dp->tx2_key;
-		dp->tx2 = 0;
-	}
-	/* Start next packet if one is ready */
-	dp->tx_started = false;
-	if (dp->tx1) {
-		dp83902a_start_xmit(dp->tx1, dp->tx1_len);
-		dp->tx_int = 1;
-	} else if (dp->tx2) {
-		dp83902a_start_xmit(dp->tx2, dp->tx2_len);
-		dp->tx_int = 2;
-	} else {
-		dp->tx_int = 0;
-	}
-	/* Tell higher level we sent this packet */
-	uboot_push_tx_done(key, 0);
-}
-
-/*
- * Read the tally counters to clear them. Called in response to a CNT
- * interrupt.
- */
-static void
-dp83902a_ClearCounters(void)
-{
-	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
-	u8 *base = dp->base;
-	u8 cnt1, cnt2, cnt3;
-
-	DP_IN(base, DP_FER, cnt1);
-	DP_IN(base, DP_CER, cnt2);
-	DP_IN(base, DP_MISSED, cnt3);
-	DP_OUT(base, DP_ISR, DP_ISR_CNT);
-}
-
-/*
- * Deal with an overflow condition. This code follows the procedure set
- * out in section 7.0 of the datasheet.
- */
-static void
-dp83902a_Overflow(void)
-{
-	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *)&nic;
-	u8 *base = dp->base;
-	u8 isr;
-
-	/* Issue a stop command and wait 1.6ms for it to complete. */
-	DP_OUT(base, DP_CR, DP_CR_STOP | DP_CR_NODMA);
-	CYGACC_CALL_IF_DELAY_US(1600);
-
-	/* Clear the remote byte counter registers. */
-	DP_OUT(base, DP_RBCL, 0);
-	DP_OUT(base, DP_RBCH, 0);
-
-	/* Enter loopback mode while we clear the buffer. */
-	DP_OUT(base, DP_TCR, DP_TCR_LOCAL);
-	DP_OUT(base, DP_CR, DP_CR_START | DP_CR_NODMA);
-
-	/*
-	 * Read in as many packets as we can and acknowledge any and receive
-	 * interrupts. Since the buffer has overflowed, a receive event of
-	 * some kind will have occured.
-	 */
-	dp83902a_RxEvent();
-	DP_OUT(base, DP_ISR, DP_ISR_RxP|DP_ISR_RxE);
-
-	/* Clear the overflow condition and leave loopback mode. */
-	DP_OUT(base, DP_ISR, DP_ISR_OFLW);
-	DP_OUT(base, DP_TCR, DP_TCR_NORMAL);
-
-	/*
-	 * If a transmit command was issued, but no transmit event has occured,
-	 * restart it here.
-	 */
-	DP_IN(base, DP_ISR, isr);
-	if (dp->tx_started && !(isr & (DP_ISR_TxP|DP_ISR_TxE))) {
-		DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_TXPKT | DP_CR_START);
-	}
-}
-
-static void
-dp83902a_poll(void)
-{
-	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
-	u8 *base = dp->base;
-	u8 isr;
-
-	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE0 | DP_CR_START);
-	DP_IN(base, DP_ISR, isr);
-	while (0 != isr) {
-		/*
-		 * The CNT interrupt triggers when the MSB of one of the error
-		 * counters is set. We don't much care about these counters, but
-		 * we should read their values to reset them.
-		 */
-		if (isr & DP_ISR_CNT) {
-			dp83902a_ClearCounters();
-		}
-		/*
-		 * Check for overflow. It's a special case, since there's a
-		 * particular procedure that must be followed to get back into
-		 * a running state.a
-		 */
-		if (isr & DP_ISR_OFLW) {
-			dp83902a_Overflow();
-		} else {
-			/*
-			 * Other kinds of interrupts can be acknowledged simply by
-			 * clearing the relevant bits of the ISR. Do that now, then
-			 * handle the interrupts we care about.
-			 */
-			DP_OUT(base, DP_ISR, isr);	/* Clear set bits */
-			if (!dp->running) break;	/* Is this necessary? */
-			/*
-			 * Check for tx_started on TX event since these may happen
-			 * spuriously it seems.
-			 */
-			if (isr & (DP_ISR_TxP|DP_ISR_TxE) && dp->tx_started) {
-				dp83902a_TxEvent();
-			}
-			if (isr & (DP_ISR_RxP|DP_ISR_RxE)) {
-				dp83902a_RxEvent();
-			}
-		}
-		DP_IN(base, DP_ISR, isr);
-	}
-}
-
+#define mdelay(n) udelay((n)*1000)
 /* find prom (taken from pc_net_cs.c from Linux) */
 
 #include "8390.h"
@@ -763,18 +174,16 @@ static hw_info_t hw_info[] = {
 #define PCNET_RESET	0x1f	/* Issue a read to reset, a write to clear. */
 #define PCNET_MISC	0x18	/* For IBM CCAE and Socket EA cards */
 
-static void pcnet_reset_8390(void)
+static void pcnet_reset_8390(u8* addr)
 {
 	int i, r;
 
-	PRINTK("nic base is %lx\n", nic.base);
-
 	n2k_outb(E8390_NODMA + E8390_PAGE0+E8390_STOP, E8390_CMD);
-	PRINTK("cmd (at %lx) is %x\n", nic.base + E8390_CMD, n2k_inb(E8390_CMD));
+	PRINTK("cmd (at %lx) is %x\n", addr + E8390_CMD, n2k_inb(E8390_CMD));
 	n2k_outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, E8390_CMD);
-	PRINTK("cmd (at %lx) is %x\n", nic.base + E8390_CMD, n2k_inb(E8390_CMD));
+	PRINTK("cmd (at %lx) is %x\n", addr + E8390_CMD, n2k_inb(E8390_CMD));
 	n2k_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD);
-	PRINTK("cmd (at %lx) is %x\n", nic.base + E8390_CMD, n2k_inb(E8390_CMD));
+	PRINTK("cmd (at %lx) is %x\n", addr + E8390_CMD, n2k_inb(E8390_CMD));
 	n2k_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD);
 
 	n2k_outb(n2k_inb(PCNET_RESET), PCNET_RESET);
@@ -791,8 +200,7 @@ static void pcnet_reset_8390(void)
 		printf("pcnet_reset_8390() did not complete.\n");
 } /* pcnet_reset_8390 */
 
-int get_prom(u8* mac_addr) __attribute__ ((weak, alias ("__get_prom")));
-int __get_prom(u8* mac_addr)
+int get_prom(u8* mac_addr, u8* base_addr)
 {
 	u8 prom[32];
 	int i, j;
@@ -816,7 +224,7 @@ int __get_prom(u8* mac_addr)
 
 	PRINTK ("trying to get MAC via prom reading\n");
 
-	pcnet_reset_8390 ();
+	pcnet_reset_8390 (base_addr);
 
 	mdelay (10);
 
@@ -849,116 +257,3 @@ int __get_prom(u8* mac_addr)
 	}
 	return 0;
 }
-
-/* U-boot specific routines */
-static u8 *pbuf = NULL;
-
-static int pkey = -1;
-static int initialized = 0;
-
-void uboot_push_packet_len(int len) {
-	PRINTK("pushed len = %d\n", len);
-	if (len >= 2000) {
-		printf("NE2000: packet too big\n");
-		return;
-	}
-	dp83902a_recv(&pbuf[0], len);
-
-	/*Just pass it to the upper layer*/
-	NetReceive(&pbuf[0], len);
-}
-
-void uboot_push_tx_done(int key, int val) {
-	PRINTK("pushed key = %d\n", key);
-	pkey = key;
-}
-
-int eth_init(bd_t *bd) {
-	int r;
-	u8 dev_addr[6];
-	char ethaddr[20];
-
-	PRINTK("### eth_init\n");
-
-	if (!pbuf) {
-		pbuf = malloc(2000);
-		if (!pbuf) {
-			printf("Cannot allocate rx buffer\n");
-			return -1;
-		}
-	}
-
-#ifdef CONFIG_DRIVER_NE2000_CCR
-	{
-		vu_char *p = (vu_char *) CONFIG_DRIVER_NE2000_CCR;
-
-		PRINTK("CCR before is %x\n", *p);
-		*p = CONFIG_DRIVER_NE2000_VAL;
-		PRINTK("CCR after is %x\n", *p);
-	}
-#endif
-
-	nic.base = (u8 *) CONFIG_DRIVER_NE2000_BASE;
-
-	r = get_prom(dev_addr);
-	if (!r)
-		return -1;
-
-	sprintf (ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
-		 dev_addr[0], dev_addr[1],
-		 dev_addr[2], dev_addr[3],
-		 dev_addr[4], dev_addr[5]) ;
-	PRINTK("Set environment from HW MAC addr = \"%s\"\n", ethaddr);
-	setenv ("ethaddr", ethaddr);
-
-	nic.data = nic.base + DP_DATA;
-	nic.tx_buf1 = START_PG;
-	nic.tx_buf2 = START_PG2;
-	nic.rx_buf_start = RX_START;
-	nic.rx_buf_end = RX_END;
-
-	if (dp83902a_init() == false)
-		return -1;
-
-	dp83902a_start(dev_addr);
-	initialized = 1;
-
-	return 0;
-}
-
-void eth_halt() {
-
-	PRINTK("### eth_halt\n");
-	if(initialized)
-		dp83902a_stop();
-	initialized = 0;
-}
-
-int eth_rx() {
-	dp83902a_poll();
-	return 1;
-}
-
-int eth_send(volatile void *packet, int length) {
-	int tmo;
-
-	PRINTK("### eth_send\n");
-
-	pkey = -1;
-
-	dp83902a_send((u8 *) packet, length, 666);
-	tmo = get_timer (0) + TOUT * CFG_HZ;
-	while(1) {
-		dp83902a_poll();
-		if (pkey != -1) {
-			PRINTK("Packet sucesfully sent\n");
-			return 0;
-		}
-		if (get_timer (0) >= tmo) {
-			printf("transmission error (timoeut)\n");
-			return 0;
-		}
-
-	}
-	return 0;
-}

drivers/net/ne2000_base.c

@@ -0,0 +1,757 @@
+/*
+Ported to U-Boot by Christian Pellegrin <chri@ascensit.com>
+
+Based on sources from the Linux kernel (pcnet_cs.c, 8390.h) and
+eCOS(if_dp83902a.c, if_dp83902a.h). Both of these 2 wonderful world
+are GPL, so this is, of course, GPL.
+
+==========================================================================
+
+dev/if_dp83902a.c
+
+Ethernet device driver for NS DP83902a ethernet controller
+
+==========================================================================
+####ECOSGPLCOPYRIGHTBEGIN####
+-------------------------------------------
+This file is part of eCos, the Embedded Configurable Operating System.
+Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+
+eCos 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 or (at your option) any later version.
+
+eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+
+As a special exception, if other files instantiate templates or use macros
+or inline functions from this file, or you compile this file and link it
+with other works to produce a work based on this file, this file does not
+by itself cause the resulting work to be covered by the GNU General Public
+License. However the source code for this file must still be made available
+in accordance with section (3) of the GNU General Public License.
+
+This exception does not invalidate any other reasons why a work based on
+this file might be covered by the GNU General Public License.
+
+Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+at http://sources.redhat.com/ecos/ecos-license/
+-------------------------------------------
+####ECOSGPLCOPYRIGHTEND####
+####BSDCOPYRIGHTBEGIN####
+
+-------------------------------------------
+
+Portions of this software may have been derived from OpenBSD or other sources,
+and are covered by the appropriate copyright disclaimers included herein.
+
+-------------------------------------------
+
+####BSDCOPYRIGHTEND####
+==========================================================================
+#####DESCRIPTIONBEGIN####
+
+Author(s):	gthomas
+Contributors:	gthomas, jskov, rsandifo
+Date:		2001-06-13
+Purpose:
+Description:
+
+FIXME:		Will fail if pinged with large packets (1520 bytes)
+Add promisc config
+Add SNMP
+
+####DESCRIPTIONEND####
+
+==========================================================================
+*/
+
+#include <common.h>
+#include <command.h>
+#include <net.h>
+#include <malloc.h>
+
+#define mdelay(n)	udelay((n)*1000)
+/* forward definition of function used for the uboot interface */
+void uboot_push_packet_len(int len);
+void uboot_push_tx_done(int key, int val);
+
+/* NE2000 base header file */
+#include "ne2000_base.h"
+
+#if defined(CONFIG_DRIVER_AX88796L)
+/* AX88796L support */
+#include "ax88796.h"
+#else
+/* Basic NE2000 chip support */
+#include "ne2000.h"
+#endif
+
+static dp83902a_priv_data_t nic; /* just one instance of the card supported */
+
+static bool
+dp83902a_init(void)
+{
+	dp83902a_priv_data_t *dp = &nic;
+	u8* base;
+#if defined(NE2000_BASIC_INIT)
+	int i;
+#endif
+
+	DEBUG_FUNCTION();
+
+	base = dp->base;
+	if (!base)
+		return false;	/* No device found */
+
+	DEBUG_LINE();
+
+#if defined(NE2000_BASIC_INIT)
+	/* AX88796L doesn't need */
+	/* Prepare ESA */
+	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE1);	/* Select page 1 */
+	/* Use the address from the serial EEPROM */
+	for (i = 0; i < 6; i++)
+		DP_IN(base, DP_P1_PAR0+i, dp->esa[i]);
+	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE0);	/* Select page 0 */
+
+	printf("NE2000 - %s ESA: %02x:%02x:%02x:%02x:%02x:%02x\n",
+		"eeprom",
+		dp->esa[0],
+		dp->esa[1],
+		dp->esa[2],
+		dp->esa[3],
+		dp->esa[4],
+		dp->esa[5] );
+
+#endif	/* NE2000_BASIC_INIT */
+	return true;
+}
+
+static void
+dp83902a_stop(void)
+{
+	dp83902a_priv_data_t *dp = &nic;
+	u8 *base = dp->base;
+
+	DEBUG_FUNCTION();
+
+	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_STOP);	/* Brutal */
+	DP_OUT(base, DP_ISR, 0xFF);		/* Clear any pending interrupts */
+	DP_OUT(base, DP_IMR, 0x00);		/* Disable all interrupts */
+
+	dp->running = false;
+}
+
+/*
+ * This function is called to "start up" the interface. It may be called
+ * multiple times, even when the hardware is already running. It will be
+ * called whenever something "hardware oriented" changes and should leave
+ * the hardware ready to send/receive packets.
+ */
+static void
+dp83902a_start(u8 * enaddr)
+{
+	dp83902a_priv_data_t *dp = &nic;
+	u8 *base = dp->base;
+	int i;
+
+	DEBUG_FUNCTION();
+
+	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_STOP); /* Brutal */
+	DP_OUT(base, DP_DCR, DP_DCR_INIT);
+	DP_OUT(base, DP_RBCH, 0);		/* Remote byte count */
+	DP_OUT(base, DP_RBCL, 0);
+	DP_OUT(base, DP_RCR, DP_RCR_MON);	/* Accept no packets */
+	DP_OUT(base, DP_TCR, DP_TCR_LOCAL);	/* Transmitter [virtually] off */
+	DP_OUT(base, DP_TPSR, dp->tx_buf1);	/* Transmitter start page */
+	dp->tx1 = dp->tx2 = 0;
+	dp->tx_next = dp->tx_buf1;
+	dp->tx_started = false;
+	dp->running = true;
+	DP_OUT(base, DP_PSTART, dp->rx_buf_start); /* Receive ring start page */
+	DP_OUT(base, DP_BNDRY, dp->rx_buf_end - 1); /* Receive ring boundary */
+	DP_OUT(base, DP_PSTOP, dp->rx_buf_end);	/* Receive ring end page */
+	dp->rx_next = dp->rx_buf_start - 1;
+	dp->running = true;
+	DP_OUT(base, DP_ISR, 0xFF);		/* Clear any pending interrupts */
+	DP_OUT(base, DP_IMR, DP_IMR_All);	/* Enable all interrupts */
+	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE1 | DP_CR_STOP);	/* Select page 1 */
+	DP_OUT(base, DP_P1_CURP, dp->rx_buf_start);	/* Current page - next free page for Rx */
+	dp->running = true;
+	for (i = 0; i < ETHER_ADDR_LEN; i++) {
+		/* FIXME */
+		/*((vu_short*)( base + ((DP_P1_PAR0 + i) * 2) +
+		 * 0x1400)) = enaddr[i];*/
+		DP_OUT(base, DP_P1_PAR0+i, enaddr[i]);
+	}
+	/* Enable and start device */
+	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
+	DP_OUT(base, DP_TCR, DP_TCR_NORMAL); /* Normal transmit operations */
+	DP_OUT(base, DP_RCR, DP_RCR_AB); /* Accept broadcast, no errors, no multicast */
+	dp->running = true;
+}
+
+/*
+ * This routine is called to start the transmitter. It is split out from the
+ * data handling routine so it may be called either when data becomes first
+ * available or when an Tx interrupt occurs
+ */
+
+static void
+dp83902a_start_xmit(int start_page, int len)
+{
+	dp83902a_priv_data_t *dp = (dp83902a_priv_data_t *) &nic;
+	u8 *base = dp->base;
+
+	DEBUG_FUNCTION();
+
+#if DEBUG & 1
+	printf("Tx pkt %d len %d\n", start_page, len);
+	if (dp->tx_started)
+		printf("TX already started?!?\n");
+#endif
+
+	DP_OUT(base, DP_ISR, (DP_ISR_TxP | DP_ISR_TxE));
+	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
+	DP_OUT(base, DP_TBCL, len & 0xFF);
+	DP_OUT(base, DP_TBCH, len >> 8);
+	DP_OUT(base, DP_TPSR, start_page);
+	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_TXPKT | DP_CR_START);
+
+	dp->tx_started = true;
+}
+
+/*
+ * This routine is called to send data to the hardware. It is known a-priori
+ * that there is free buffer space (dp->tx_next).
+ */
+static void
+dp83902a_send(u8 *data, int total_len, u32 key)
+{
+	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
+	u8 *base = dp->base;
+	int len, start_page, pkt_len, i, isr;
+#if DEBUG & 4
+	int dx;
+#endif
+
+	DEBUG_FUNCTION();
+
+	len = pkt_len = total_len;
+	if (pkt_len < IEEE_8023_MIN_FRAME)
+		pkt_len = IEEE_8023_MIN_FRAME;
+
+	start_page = dp->tx_next;
+	if (dp->tx_next == dp->tx_buf1) {
+		dp->tx1 = start_page;
+		dp->tx1_len = pkt_len;
+		dp->tx1_key = key;
+		dp->tx_next = dp->tx_buf2;
+	} else {
+		dp->tx2 = start_page;
+		dp->tx2_len = pkt_len;
+		dp->tx2_key = key;
+		dp->tx_next = dp->tx_buf1;
+	}
+
+#if DEBUG & 5
+	printf("TX prep page %d len %d\n", start_page, pkt_len);
+#endif
+
+	DP_OUT(base, DP_ISR, DP_ISR_RDC);	/* Clear end of DMA */
+	{
+		/*
+		 * Dummy read. The manual sez something slightly different,
+		 * but the code is extended a bit to do what Hitachi's monitor
+		 * does (i.e., also read data).
+		 */
+
+		u16 tmp;
+		int len = 1;
+
+		DP_OUT(base, DP_RSAL, 0x100 - len);
+		DP_OUT(base, DP_RSAH, (start_page - 1) & 0xff);
+		DP_OUT(base, DP_RBCL, len);
+		DP_OUT(base, DP_RBCH, 0);
+		DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_RDMA | DP_CR_START);
+		DP_IN_DATA(dp->data, tmp);
+	}
+
+#ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_TX_DMA
+	/*
+	 * Stall for a bit before continuing to work around random data
+	 * corruption problems on some platforms.
+	 */
+	CYGACC_CALL_IF_DELAY_US(1);
+#endif
+
+	/* Send data to device buffer(s) */
+	DP_OUT(base, DP_RSAL, 0);
+	DP_OUT(base, DP_RSAH, start_page);
+	DP_OUT(base, DP_RBCL, pkt_len & 0xFF);
+	DP_OUT(base, DP_RBCH, pkt_len >> 8);
+	DP_OUT(base, DP_CR, DP_CR_WDMA | DP_CR_START);
+
+	/* Put data into buffer */
+#if DEBUG & 4
+	printf(" sg buf %08lx len %08x\n ", (u32)data, len);
+	dx = 0;
+#endif
+	while (len > 0) {
+#if DEBUG & 4
+		printf(" %02x", *data);
+		if (0 == (++dx % 16)) printf("\n ");
+#endif
+
+		DP_OUT_DATA(dp->data, *data++);
+		len--;
+	}
+#if DEBUG & 4
+	printf("\n");
+#endif
+	if (total_len < pkt_len) {
+#if DEBUG & 4
+		printf("  + %d bytes of padding\n", pkt_len - total_len);
+#endif
+		/* Padding to 802.3 length was required */
+		for (i = total_len; i < pkt_len;) {
+			i++;
+			DP_OUT_DATA(dp->data, 0);
+		}
+	}
+
+#ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_TX_DMA
+	/*
+	 * After last data write, delay for a bit before accessing the
+	 * device again, or we may get random data corruption in the last
+	 * datum (on some platforms).
+	 */
+	CYGACC_CALL_IF_DELAY_US(1);
+#endif
+
+	/* Wait for DMA to complete */
+	do {
+		DP_IN(base, DP_ISR, isr);
+	} while ((isr & DP_ISR_RDC) == 0);
+
+	/* Then disable DMA */
+	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
+
+	/* Start transmit if not already going */
+	if (!dp->tx_started) {
+		if (start_page == dp->tx1) {
+			dp->tx_int = 1; /* Expecting interrupt from BUF1 */
+		} else {
+			dp->tx_int = 2; /* Expecting interrupt from BUF2 */
+		}
+		dp83902a_start_xmit(start_page, pkt_len);
+	}
+}
+
+/*
+ * This function is called when a packet has been received. It's job is
+ * to prepare to unload the packet from the hardware. Once the length of
+ * the packet is known, the upper layer of the driver can be told. When
+ * the upper layer is ready to unload the packet, the internal function
+ * 'dp83902a_recv' will be called to actually fetch it from the hardware.
+ */
+static void
+dp83902a_RxEvent(void)
+{
+	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
+	u8 *base = dp->base;
+	u8 rsr;
+	u8 rcv_hdr[4];
+	int i, len, pkt, cur;
+
+	DEBUG_FUNCTION();
+
+	DP_IN(base, DP_RSR, rsr);
+	while (true) {
+		/* Read incoming packet header */
+		DP_OUT(base, DP_CR, DP_CR_PAGE1 | DP_CR_NODMA | DP_CR_START);
+		DP_IN(base, DP_P1_CURP, cur);
+		DP_OUT(base, DP_P1_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
+		DP_IN(base, DP_BNDRY, pkt);
+
+		pkt += 1;
+		if (pkt == dp->rx_buf_end)
+			pkt = dp->rx_buf_start;
+
+		if (pkt == cur) {
+			break;
+		}
+		DP_OUT(base, DP_RBCL, sizeof(rcv_hdr));
+		DP_OUT(base, DP_RBCH, 0);
+		DP_OUT(base, DP_RSAL, 0);
+		DP_OUT(base, DP_RSAH, pkt);
+		if (dp->rx_next == pkt) {
+			if (cur == dp->rx_buf_start)
+				DP_OUT(base, DP_BNDRY, dp->rx_buf_end - 1);
+			else
+				DP_OUT(base, DP_BNDRY, cur - 1); /* Update pointer */
+			return;
+		}
+		dp->rx_next = pkt;
+		DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
+		DP_OUT(base, DP_CR, DP_CR_RDMA | DP_CR_START);
+#ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_RX_DMA
+		CYGACC_CALL_IF_DELAY_US(10);
+#endif
+
+		/* read header (get data size)*/
+		for (i = 0; i < sizeof(rcv_hdr);) {
+			DP_IN_DATA(dp->data, rcv_hdr[i++]);
+		}
+
+#if DEBUG & 5
+		printf("rx hdr %02x %02x %02x %02x\n",
+			rcv_hdr[0], rcv_hdr[1], rcv_hdr[2], rcv_hdr[3]);
+#endif
+		len = ((rcv_hdr[3] << 8) | rcv_hdr[2]) - sizeof(rcv_hdr);
+
+		/* data read */
+		uboot_push_packet_len(len);
+
+		if (rcv_hdr[1] == dp->rx_buf_start)
+			DP_OUT(base, DP_BNDRY, dp->rx_buf_end - 1);
+		else
+			DP_OUT(base, DP_BNDRY, rcv_hdr[1] - 1); /* Update pointer */
+	}
+}
+
+/*
+ * This function is called as a result of the "eth_drv_recv()" call above.
+ * It's job is to actually fetch data for a packet from the hardware once
+ * memory buffers have been allocated for the packet. Note that the buffers
+ * may come in pieces, using a scatter-gather list. This allows for more
+ * efficient processing in the upper layers of the stack.
+ */
+static void
+dp83902a_recv(u8 *data, int len)
+{
+	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
+	u8 *base = dp->base;
+	int i, mlen;
+	u8 saved_char = 0;
+	bool saved;
+#if DEBUG & 4
+	int dx;
+#endif
+
+	DEBUG_FUNCTION();
+
+#if DEBUG & 5
+	printf("Rx packet %d length %d\n", dp->rx_next, len);
+#endif
+
+	/* Read incoming packet data */
+	DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
+	DP_OUT(base, DP_RBCL, len & 0xFF);
+	DP_OUT(base, DP_RBCH, len >> 8);
+	DP_OUT(base, DP_RSAL, 4);		/* Past header */
+	DP_OUT(base, DP_RSAH, dp->rx_next);
+	DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
+	DP_OUT(base, DP_CR, DP_CR_RDMA | DP_CR_START);
+#ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_RX_DMA
+	CYGACC_CALL_IF_DELAY_US(10);
+#endif
+
+	saved = false;
+	for (i = 0; i < 1; i++) {
+		if (data) {
+			mlen = len;
+#if DEBUG & 4
+			printf(" sg buf %08lx len %08x \n", (u32) data, mlen);
+			dx = 0;
+#endif
+			while (0 < mlen) {
+				/* Saved byte from previous loop? */
+				if (saved) {
+					*data++ = saved_char;
+					mlen--;
+					saved = false;
+					continue;
+				}
+
+				{
+					u8 tmp;
+					DP_IN_DATA(dp->data, tmp);
+#if DEBUG & 4
+					printf(" %02x", tmp);
+					if (0 == (++dx % 16)) printf("\n ");
+#endif
+					*data++ = tmp;;
+					mlen--;
+				}
+			}
+#if DEBUG & 4
+			printf("\n");
+#endif
+		}
+	}
+}
+
+static void
+dp83902a_TxEvent(void)
+{
+	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
+	u8 *base = dp->base;
+	u8 tsr;
+	u32 key;
+
+	DEBUG_FUNCTION();
+
+	DP_IN(base, DP_TSR, tsr);
+	if (dp->tx_int == 1) {
+		key = dp->tx1_key;
+		dp->tx1 = 0;
+	} else {
+		key = dp->tx2_key;
+		dp->tx2 = 0;
+	}
+	/* Start next packet if one is ready */
+	dp->tx_started = false;
+	if (dp->tx1) {
+		dp83902a_start_xmit(dp->tx1, dp->tx1_len);
+		dp->tx_int = 1;
+	} else if (dp->tx2) {
+		dp83902a_start_xmit(dp->tx2, dp->tx2_len);
+		dp->tx_int = 2;
+	} else {
+		dp->tx_int = 0;
+	}
+	/* Tell higher level we sent this packet */
+	uboot_push_tx_done(key, 0);
+}
+
+/*
+ * Read the tally counters to clear them. Called in response to a CNT
+ * interrupt.
+ */
+static void
+dp83902a_ClearCounters(void)
+{
+	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
+	u8 *base = dp->base;
+	u8 cnt1, cnt2, cnt3;
+
+	DP_IN(base, DP_FER, cnt1);
+	DP_IN(base, DP_CER, cnt2);
+	DP_IN(base, DP_MISSED, cnt3);
+	DP_OUT(base, DP_ISR, DP_ISR_CNT);
+}
+
+/*
+ * Deal with an overflow condition. This code follows the procedure set
+ * out in section 7.0 of the datasheet.
+ */
+static void
+dp83902a_Overflow(void)
+{
+	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *)&nic;
+	u8 *base = dp->base;
+	u8 isr;
+
+	/* Issue a stop command and wait 1.6ms for it to complete. */
+	DP_OUT(base, DP_CR, DP_CR_STOP | DP_CR_NODMA);
+	CYGACC_CALL_IF_DELAY_US(1600);
+
+	/* Clear the remote byte counter registers. */
+	DP_OUT(base, DP_RBCL, 0);
+	DP_OUT(base, DP_RBCH, 0);
+
+	/* Enter loopback mode while we clear the buffer. */
+	DP_OUT(base, DP_TCR, DP_TCR_LOCAL);
+	DP_OUT(base, DP_CR, DP_CR_START | DP_CR_NODMA);
+
+	/*
+	 * Read in as many packets as we can and acknowledge any and receive
+	 * interrupts. Since the buffer has overflowed, a receive event of
+	 * some kind will have occured.
+	 */
+	dp83902a_RxEvent();
+	DP_OUT(base, DP_ISR, DP_ISR_RxP|DP_ISR_RxE);
+
+	/* Clear the overflow condition and leave loopback mode. */
+	DP_OUT(base, DP_ISR, DP_ISR_OFLW);
+	DP_OUT(base, DP_TCR, DP_TCR_NORMAL);
+
+	/*
+	 * If a transmit command was issued, but no transmit event has occured,
+	 * restart it here.
+	 */
+	DP_IN(base, DP_ISR, isr);
+	if (dp->tx_started && !(isr & (DP_ISR_TxP|DP_ISR_TxE))) {
+		DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_TXPKT | DP_CR_START);
+	}
+}
+
+static void
+dp83902a_poll(void)
+{
+	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
+	u8 *base = dp->base;
+	u8 isr;
+
+	DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE0 | DP_CR_START);
+	DP_IN(base, DP_ISR, isr);
+	while (0 != isr) {
+		/*
+		 * The CNT interrupt triggers when the MSB of one of the error
+		 * counters is set. We don't much care about these counters, but
+		 * we should read their values to reset them.
+		 */
+		if (isr & DP_ISR_CNT) {
+			dp83902a_ClearCounters();
+		}
+		/*
+		 * Check for overflow. It's a special case, since there's a
+		 * particular procedure that must be followed to get back into
+		 * a running state.a
+		 */
+		if (isr & DP_ISR_OFLW) {
+			dp83902a_Overflow();
+		} else {
+			/*
+			 * Other kinds of interrupts can be acknowledged simply by
+			 * clearing the relevant bits of the ISR. Do that now, then
+			 * handle the interrupts we care about.
+			 */
+			DP_OUT(base, DP_ISR, isr);	/* Clear set bits */
+			if (!dp->running) break;	/* Is this necessary? */
+			/*
+			 * Check for tx_started on TX event since these may happen
+			 * spuriously it seems.
+			 */
+			if (isr & (DP_ISR_TxP|DP_ISR_TxE) && dp->tx_started) {
+				dp83902a_TxEvent();
+			}
+			if (isr & (DP_ISR_RxP|DP_ISR_RxE)) {
+				dp83902a_RxEvent();
+			}
+		}
+		DP_IN(base, DP_ISR, isr);
+	}
+}
+
+
+/* U-boot specific routines */
+static u8 *pbuf = NULL;
+
+static int pkey = -1;
+static int initialized = 0;
+
+void uboot_push_packet_len(int len) {
+	PRINTK("pushed len = %d\n", len);
+	if (len >= 2000) {
+		printf("NE2000: packet too big\n");
+		return;
+	}
+	dp83902a_recv(&pbuf[0], len);
+
+	/*Just pass it to the upper layer*/
+	NetReceive(&pbuf[0], len);
+}
+
+void uboot_push_tx_done(int key, int val) {
+	PRINTK("pushed key = %d\n", key);
+	pkey = key;
+}
+
+int eth_init(bd_t *bd) {
+	int r;
+	u8 dev_addr[6];
+	char ethaddr[20];
+
+	PRINTK("### eth_init\n");
+
+	if (!pbuf) {
+		pbuf = malloc(2000);
+		if (!pbuf) {
+			printf("Cannot allocate rx buffer\n");
+			return -1;
+		}
+	}
+
+#ifdef CONFIG_DRIVER_NE2000_CCR
+	{
+		vu_char *p = (vu_char *) CONFIG_DRIVER_NE2000_CCR;
+
+		PRINTK("CCR before is %x\n", *p);
+		*p = CONFIG_DRIVER_NE2000_VAL;
+		PRINTK("CCR after is %x\n", *p);
+	}
+#endif
+
+	nic.base = (u8 *) CONFIG_DRIVER_NE2000_BASE;
+
+	r = get_prom(dev_addr, nic.base);
+	if (!r)
+		return -1;
+
+	sprintf (ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
+		 dev_addr[0], dev_addr[1],
+		 dev_addr[2], dev_addr[3],
+		 dev_addr[4], dev_addr[5]) ;
+	PRINTK("Set environment from HW MAC addr = \"%s\"\n", ethaddr);
+	setenv ("ethaddr", ethaddr);
+
+	nic.data = nic.base + DP_DATA;
+	nic.tx_buf1 = START_PG;
+	nic.tx_buf2 = START_PG2;
+	nic.rx_buf_start = RX_START;
+	nic.rx_buf_end = RX_END;
+
+	if (dp83902a_init() == false)
+		return -1;
+
+	dp83902a_start(dev_addr);
+	initialized = 1;
+
+	return 0;
+}
+
+void eth_halt() {
+
+	PRINTK("### eth_halt\n");
+	if(initialized)
+		dp83902a_stop();
+	initialized = 0;
+}
+
+int eth_rx() {
+	dp83902a_poll();
+	return 1;
+}
+
+int eth_send(volatile void *packet, int length) {
+	int tmo;
+
+	PRINTK("### eth_send\n");
+
+	pkey = -1;
+
+	dp83902a_send((u8 *) packet, length, 666);
+	tmo = get_timer (0) + TOUT * CFG_HZ;
+	while(1) {
+		dp83902a_poll();
+		if (pkey != -1) {
+			PRINTK("Packet sucesfully sent\n");
+			return 0;
+		}
+		if (get_timer (0) >= tmo) {
+			printf("transmission error (timoeut)\n");
+			return 0;
+		}
+
+	}
+	return 0;
+}

drivers/net/ne2000_base.h

@@ -80,10 +80,35 @@ are GPL, so this is, of course, GPL.
 #define __NE2000_BASE_H__
 
 #define bool int
-
 #define false 0
 #define true 1
 
+/*
+ * Debugging details
+ *
+ * Set to perms of:
+ * 0 disables all debug output
+ * 1 for process debug output
+ * 2 for added data IO output: get_reg, put_reg
+ * 4 for packet allocation/free output
+ * 8 for only startup status, so we can tell we're installed OK
+ */
+#if 0
+#define DEBUG 0xf
+#else
+#define DEBUG 0
+#endif
+
+#if DEBUG & 1
+#define DEBUG_FUNCTION() do { printf("%s\n", __FUNCTION__); } while (0)
+#define DEBUG_LINE() do { printf("%d\n", __LINE__); } while (0)
+#define PRINTK(args...) printf(args)
+#else
+#define DEBUG_FUNCTION() do {} while(0)
+#define DEBUG_LINE() do {} while(0)
+#define PRINTK(args...)
+#endif
+
 /* timeout for tx/rx in s */
 #define TOUT 5
 /* Ether MAC address size */
@@ -119,11 +144,6 @@ typedef struct dp83902a_priv_data {
 	int rx_buf_start, rx_buf_end;
 } dp83902a_priv_data_t;
 
-/*
- * Some forward declarations
- */
-static void dp83902a_poll(void);
-
 /* ------------------------------------------------------------------------ */
 /* Register offsets */
 
@@ -281,4 +301,8 @@ static void dp83902a_poll(void);
 
 #define IEEE_8023_MAX_FRAME	1518	/* Largest possible ethernet frame */
 #define IEEE_8023_MIN_FRAME	64	/* Smallest possible ethernet frame */
+
+/* Functions */
+int get_prom(u8* mac_addr, u8* base_addr);
+
 #endif /* __NE2000_BASE_H__ */

drivers/net/tsec.c

@@ -1366,6 +1366,8 @@ struct phy_info phy_info_VSC8601 = {
 				{MIIM_EXT_PAGE_ACCESS,0,NULL},
 #endif
 #endif
+				{MIIM_ANAR, MIIM_ANAR_INIT, NULL},
+				{MIIM_CONTROL, MIIM_CONTROL_RESTART, &mii_cr_init},
 				{miim_end,}
 				 },
 		(struct phy_cmd[]){     /* startup */