drivers/net : move net drivers to drivers/net

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

1 files changed, 0 insertions, 940 deletions

diff --git a/drivers/ne2000.c b/drivers/ne2000.c
deleted file mode 100644
index c978d62..0000000
--- a/drivers/ne2000.c
+++ /dev/null
@@ -1,940 +0,0 @@
-/*
-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>
-
-#ifdef CONFIG_DRIVER_NE2000
-
-/* wor around udelay resetting OCR */
-static void my_udelay(long us) {
-	long tmo;
-
-	tmo = get_timer (0) + us * CFG_HZ / 1000000; /* will this be much greater than 0 ? */
-	while (get_timer (0) < tmo);
-}
-
-#define mdelay(n)       my_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);
-
-/* timeout for tx/rx in s */
-#define TOUT 5
-
-#define ETHER_ADDR_LEN 6
-
-/*
-  ------------------------------------------------------------------------
-  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
-*/
-/*#define DEBUG 0xf*/
-#define DEBUG 0
-
-#if DEBUG & 1
-#define DEBUG_FUNCTION() do { printf("%s\n", __FUNCTION__); } while (0)
-#define DEBUG_LINE() do { printf("%d\n", __LINE__); } while (0)
-#else
-#define DEBUG_FUNCTION() do {} while(0)
-#define DEBUG_LINE() do {} while(0)
-#endif
-
-#include "ne2000.h"
-
-#if DEBUG & 1
-#define PRINTK(args...) printf(args)
-#else
-#define PRINTK(args...)
-#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;
-	cyg_uint8* base;
-	int i;
-
-	DEBUG_FUNCTION();
-
-	base = dp->base;
-	if (!base) return false;  /* No device found */
-
-	DEBUG_LINE();
-
-	/* 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] );
-
-	return true;
-}
-
-static void
-dp83902a_stop(void)
-{
-	dp83902a_priv_data_t *dp = &nic;
-	cyg_uint8 *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(unsigned char * enaddr)
-{
-	dp83902a_priv_data_t *dp = &nic;
-	cyg_uint8 *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_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_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 */
-	for (i = 0;  i < ETHER_ADDR_LEN;  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;
-	cyg_uint8 *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(unsigned char *data, int total_len, unsigned long key)
-{
-	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
-	cyg_uint8 *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). */
-
-		cyg_uint16 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 ", (unsigned long) 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;
-	cyg_uint8 *base = dp->base;
-	unsigned char rsr;
-	unsigned char 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
-
-		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);
-		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(unsigned char *data, int len)
-{
-	struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
-	cyg_uint8 *base = dp->base;
-	int i, mlen;
-	cyg_uint8 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", (unsigned long) data, mlen);
-			dx = 0;
-#endif
-			while (0 < mlen) {
-				/* Saved byte from previous loop? */
-				if (saved) {
-					*data++ = saved_char;
-					mlen--;
-					saved = false;
-					continue;
-				}
-
-				{
-					cyg_uint8 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;
-	cyg_uint8 *base = dp->base;
-	unsigned char tsr;
-	unsigned long 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;
-	cyg_uint8 *base = dp->base;
-	cyg_uint8 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;
-	cyg_uint8 *base = dp->base;
-	cyg_uint8 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;
-	cyg_uint8 *base = dp->base;
-	unsigned char 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);
-	}
-}
-
-/* find prom (taken from pc_net_cs.c from Linux) */
-
-#include "8390.h"
-
-typedef struct hw_info_t {
-	u_int	offset;
-	u_char	a0, a1, a2;
-	u_int	flags;
-} hw_info_t;
-
-#define DELAY_OUTPUT	0x01
-#define HAS_MISC_REG	0x02
-#define USE_BIG_BUF	0x04
-#define HAS_IBM_MISC	0x08
-#define IS_DL10019	0x10
-#define IS_DL10022	0x20
-#define HAS_MII		0x40
-#define USE_SHMEM	0x80	/* autodetected */
-
-#define AM79C9XX_HOME_PHY	0x00006B90  /* HomePNA PHY */
-#define AM79C9XX_ETH_PHY	0x00006B70  /* 10baseT PHY */
-#define MII_PHYID_REV_MASK	0xfffffff0
-#define MII_PHYID_REG1		0x02
-#define MII_PHYID_REG2		0x03
-
-static hw_info_t hw_info[] = {
-	{ /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT },
-	{ /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 },
-	{ /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 },
-	{ /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94,
-	  DELAY_OUTPUT | HAS_IBM_MISC },
-	{ /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 },
-	{ /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 },
-	{ /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 },
-	{ /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 },
-	{ /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 },
-	{ /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 },
-	{ /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 },
-	{ /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 },
-	{ /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* IBM FME */ 0x0374, 0x00, 0x04, 0xac,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 },
-	{ /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 },
-	{ /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 },
-	{ /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 },
-	{ /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 },
-	{ /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 },
-	{ /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45,
-	  HAS_MISC_REG | HAS_IBM_MISC },
-	{ /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 },
-	{ /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 },
-	{ /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 },
-	{ /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b,
-	  DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF },
-	{ /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 },
-	{ /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 },
-	{ /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 },
-	{ /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 },
-	{ /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 },
-	{ /* Qemu */ 0x0, 0x52, 0x54, 0x00, 0 }
-};
-
-#define NR_INFO		(sizeof(hw_info)/sizeof(hw_info_t))
-
-static hw_info_t default_info = { 0, 0, 0, 0, 0 };
-
-unsigned char dev_addr[6];
-
-#define PCNET_CMD	0x00
-#define PCNET_DATAPORT	0x10	/* NatSemi-defined port window offset. */
-#define PCNET_RESET	0x1f	/* Issue a read to reset, a write to clear. */
-#define PCNET_MISC	0x18	/* For IBM CCAE and Socket EA cards */
-
-unsigned long nic_base;
-
-static void pcnet_reset_8390(void)
-{
-	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));
-	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));
-	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));
-	n2k_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD);
-
-	n2k_outb(n2k_inb(PCNET_RESET), PCNET_RESET);
-
-	for (i = 0; i < 100; i++) {
-		if ((r = (n2k_inb(EN0_ISR) & ENISR_RESET)) != 0)
-			break;
-		PRINTK("got %x in reset\n", r);
-		my_udelay(100);
-	}
-	n2k_outb(ENISR_RESET, EN0_ISR); /* Ack intr. */
-
-	if (i == 100)
-		printf("pcnet_reset_8390() did not complete.\n");
-} /* pcnet_reset_8390 */
-
-static hw_info_t * get_prom(void ) {
-	unsigned char prom[32];
-	int i, j;
-	struct {
-		u_char value, offset;
-	} program_seq[] = {
-		{E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
-		{0x48,	EN0_DCFG},	/* Set byte-wide (0x48) access. */
-		{0x00,	EN0_RCNTLO},	/* Clear the count regs. */
-		{0x00,	EN0_RCNTHI},
-		{0x00,	EN0_IMR},	/* Mask completion irq. */
-		{0xFF,	EN0_ISR},
-		{E8390_RXOFF, EN0_RXCR},	/* 0x20  Set to monitor */
-		{E8390_TXOFF, EN0_TXCR},	/* 0x02  and loopback mode. */
-		{32,	EN0_RCNTLO},
-		{0x00,	EN0_RCNTHI},
-		{0x00,	EN0_RSARLO},	/* DMA starting at 0x0000. */
-		{0x00,	EN0_RSARHI},
-		{E8390_RREAD+E8390_START, E8390_CMD},
-	};
-
-	PRINTK("trying to get MAC via prom reading\n");
-
-	pcnet_reset_8390();
-
-	mdelay(10);
-
-	for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++)
-		n2k_outb(program_seq[i].value, program_seq[i].offset);
-
-	PRINTK("PROM:");
-	for (i = 0; i < 32; i++) {
-		prom[i] = n2k_inb(PCNET_DATAPORT);
-		PRINTK(" %02x", prom[i]);
-	}
-	PRINTK("\n");
-	for (i = 0; i < NR_INFO; i++) {
-		if ((prom[0] == hw_info[i].a0) &&
-		    (prom[2] == hw_info[i].a1) &&
-		    (prom[4] == hw_info[i].a2)) {
-			PRINTK("matched board %d\n", i);
-			break;
-		}
-	}
-	if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) {
-		for (j = 0; j < 6; j++)
-			dev_addr[j] = prom[j<<1];
-		PRINTK("on exit i is %d/%ld\n", i, NR_INFO);
-		PRINTK("MAC address is %02x:%02x:%02x:%02x:%02x:%02x\n",
-		       dev_addr[0],dev_addr[1],dev_addr[2],dev_addr[3],dev_addr[4],dev_addr[5]);
-		return (i < NR_INFO) ? hw_info+i : &default_info;
-	}
-	return NULL;
-}
-
-/* U-boot specific routines */
-
-
-static unsigned char *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) {
-	static hw_info_t * r;
-	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
-	{
-		volatile unsigned char *p =  (volatile unsigned 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 = CONFIG_DRIVER_NE2000_BASE;
-	nic.base = (cyg_uint8 *) CONFIG_DRIVER_NE2000_BASE;
-
-	r = get_prom();
-	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);
-
-
-#define DP_DATA		0x10
-	nic.data = nic.base + DP_DATA;
-	nic.tx_buf1 = 0x40;
-	nic.tx_buf2 = 0x48;
-	nic.rx_buf_start = 0x50;
-	nic.rx_buf_end = 0x80;
-
-	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((unsigned char *) 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;
-}
-#endif