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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2007-11-21 21:19:24 +0100
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2007-11-25 18:35:17 +0100
commit2439e4bfa111babf4bc07ba20efbf3e36036813e (patch)
tree21e94282acdc681bdde2ccc270bd401254124d00 /drivers/lan91c96.c
parent352d259130b349fe9593b8dada641bd78a9659e5 (diff)
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drivers/net : move net drivers to drivers/net
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'drivers/lan91c96.c')
-rw-r--r--drivers/lan91c96.c967
1 files changed, 0 insertions, 967 deletions
diff --git a/drivers/lan91c96.c b/drivers/lan91c96.c
deleted file mode 100644
index ecdcbd9..0000000
--- a/drivers/lan91c96.c
+++ /dev/null
@@ -1,967 +0,0 @@
-/*------------------------------------------------------------------------
- * lan91c96.c
- * This is a driver for SMSC's LAN91C96 single-chip Ethernet device, based
- * on the SMC91111 driver from U-boot.
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Rolf Offermanns <rof@sysgo.de>
- *
- * Copyright (C) 2001 Standard Microsystems Corporation (SMSC)
- * Developed by Simple Network Magic Corporation (SNMC)
- * Copyright (C) 1996 by Erik Stahlman (ES)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Information contained in this file was obtained from the LAN91C96
- * manual from SMC. To get a copy, if you really want one, you can find
- * information under www.smsc.com.
- *
- *
- * "Features" of the SMC chip:
- * 6144 byte packet memory. ( for the 91C96 )
- * EEPROM for configuration
- * AUI/TP selection ( mine has 10Base2/10BaseT select )
- *
- * Arguments:
- * io = for the base address
- * irq = for the IRQ
- *
- * author:
- * Erik Stahlman ( erik@vt.edu )
- * Daris A Nevil ( dnevil@snmc.com )
- *
- *
- * Hardware multicast code from Peter Cammaert ( pc@denkart.be )
- *
- * Sources:
- * o SMSC LAN91C96 databook (www.smsc.com)
- * o smc91111.c (u-boot driver)
- * o smc9194.c (linux kernel driver)
- * o lan91c96.c (Intel Diagnostic Manager driver)
- *
- * History:
- * 04/30/03 Mathijs Haarman Modified smc91111.c (u-boot version)
- * for lan91c96
- *---------------------------------------------------------------------------
- */
-
-#include <common.h>
-#include <command.h>
-#include "lan91c96.h"
-#include <net.h>
-
-#ifdef CONFIG_DRIVER_LAN91C96
-
-#if defined(CONFIG_CMD_NET)
-
-/*------------------------------------------------------------------------
- *
- * Configuration options, for the experienced user to change.
- *
- -------------------------------------------------------------------------*/
-
-/* Use power-down feature of the chip */
-#define POWER_DOWN 0
-
-/*
- * Wait time for memory to be free. This probably shouldn't be
- * tuned that much, as waiting for this means nothing else happens
- * in the system
-*/
-#define MEMORY_WAIT_TIME 16
-
-#define SMC_DEBUG 0
-
-#if (SMC_DEBUG > 2 )
-#define PRINTK3(args...) printf(args)
-#else
-#define PRINTK3(args...)
-#endif
-
-#if SMC_DEBUG > 1
-#define PRINTK2(args...) printf(args)
-#else
-#define PRINTK2(args...)
-#endif
-
-#ifdef SMC_DEBUG
-#define PRINTK(args...) printf(args)
-#else
-#define PRINTK(args...)
-#endif
-
-
-/*------------------------------------------------------------------------
- *
- * The internal workings of the driver. If you are changing anything
- * here with the SMC stuff, you should have the datasheet and know
- * what you are doing.
- *
- *------------------------------------------------------------------------
- */
-#define CARDNAME "LAN91C96"
-
-#define SMC_BASE_ADDRESS CONFIG_LAN91C96_BASE
-
-#define SMC_DEV_NAME "LAN91C96"
-#define SMC_ALLOC_MAX_TRY 5
-#define SMC_TX_TIMEOUT 30
-
-#define ETH_ZLEN 60
-
-#ifdef CONFIG_LAN91C96_USE_32_BIT
-#define USE_32_BIT 1
-#else
-#undef USE_32_BIT
-#endif
-
-/*-----------------------------------------------------------------
- *
- * The driver can be entered at any of the following entry points.
- *
- *-----------------------------------------------------------------
- */
-
-extern int eth_init (bd_t * bd);
-extern void eth_halt (void);
-extern int eth_rx (void);
-extern int eth_send (volatile void *packet, int length);
-#if 0
-static int smc_hw_init (void);
-#endif
-
-/*
- * This is called by register_netdev(). It is responsible for
- * checking the portlist for the SMC9000 series chipset. If it finds
- * one, then it will initialize the device, find the hardware information,
- * and sets up the appropriate device parameters.
- * NOTE: Interrupts are *OFF* when this procedure is called.
- *
- * NB:This shouldn't be static since it is referred to externally.
- */
-int smc_init (void);
-
-/*
- * This is called by unregister_netdev(). It is responsible for
- * cleaning up before the driver is finally unregistered and discarded.
- */
-void smc_destructor (void);
-
-/*
- * The kernel calls this function when someone wants to use the device,
- * typically 'ifconfig ethX up'.
- */
-static int smc_open (bd_t *bd);
-
-
-/*
- * This is called by the kernel in response to 'ifconfig ethX down'. It
- * is responsible for cleaning up everything that the open routine
- * does, and maybe putting the card into a powerdown state.
- */
-static int smc_close (void);
-
-/*
- * This is a separate procedure to handle the receipt of a packet, to
- * leave the interrupt code looking slightly cleaner
- */
-static int smc_rcv (void);
-
-/* See if a MAC address is defined in the current environment. If so use it. If not
- . print a warning and set the environment and other globals with the default.
- . If an EEPROM is present it really should be consulted.
-*/
-int smc_get_ethaddr(bd_t *bd);
-int get_rom_mac(unsigned char *v_rom_mac);
-
-/* ------------------------------------------------------------
- * Internal routines
- * ------------------------------------------------------------
- */
-
-static unsigned char smc_mac_addr[] = { 0xc0, 0x00, 0x00, 0x1b, 0x62, 0x9c };
-
-/*
- * This function must be called before smc_open() if you want to override
- * the default mac address.
- */
-
-void smc_set_mac_addr (const unsigned char *addr)
-{
- int i;
-
- for (i = 0; i < sizeof (smc_mac_addr); i++) {
- smc_mac_addr[i] = addr[i];
- }
-}
-
-/*
- * smc_get_macaddr is no longer used. If you want to override the default
- * mac address, call smc_get_mac_addr as a part of the board initialisation.
- */
-
-#if 0
-void smc_get_macaddr (byte * addr)
-{
- /* MAC ADDRESS AT FLASHBLOCK 1 / OFFSET 0x10 */
- unsigned char *dnp1110_mac = (unsigned char *) (0xE8000000 + 0x20010);
- int i;
-
-
- for (i = 0; i < 6; i++) {
- addr[0] = *(dnp1110_mac + 0);
- addr[1] = *(dnp1110_mac + 1);
- addr[2] = *(dnp1110_mac + 2);
- addr[3] = *(dnp1110_mac + 3);
- addr[4] = *(dnp1110_mac + 4);
- addr[5] = *(dnp1110_mac + 5);
- }
-}
-#endif /* 0 */
-
-/***********************************************
- * Show available memory *
- ***********************************************/
-void dump_memory_info (void)
-{
- word mem_info;
- word old_bank;
-
- old_bank = SMC_inw (LAN91C96_BANK_SELECT) & 0xF;
-
- SMC_SELECT_BANK (0);
- mem_info = SMC_inw (LAN91C96_MIR);
- PRINTK2 ("Memory: %4d available\n", (mem_info >> 8) * 2048);
-
- SMC_SELECT_BANK (old_bank);
-}
-
-/*
- * A rather simple routine to print out a packet for debugging purposes.
- */
-#if SMC_DEBUG > 2
-static void print_packet (byte *, int);
-#endif
-
-/* #define tx_done(dev) 1 */
-
-
-/* this does a soft reset on the device */
-static void smc_reset (void);
-
-/* Enable Interrupts, Receive, and Transmit */
-static void smc_enable (void);
-
-/* this puts the device in an inactive state */
-static void smc_shutdown (void);
-
-
-static int poll4int (byte mask, int timeout)
-{
- int tmo = get_timer (0) + timeout * CFG_HZ;
- int is_timeout = 0;
- word old_bank = SMC_inw (LAN91C96_BANK_SELECT);
-
- PRINTK2 ("Polling...\n");
- SMC_SELECT_BANK (2);
- while ((SMC_inw (LAN91C96_INT_STATS) & mask) == 0) {
- if (get_timer (0) >= tmo) {
- is_timeout = 1;
- break;
- }
- }
-
- /* restore old bank selection */
- SMC_SELECT_BANK (old_bank);
-
- if (is_timeout)
- return 1;
- else
- return 0;
-}
-
-/*
- * Function: smc_reset( void )
- * Purpose:
- * This sets the SMC91111 chip to its normal state, hopefully from whatever
- * mess that any other DOS driver has put it in.
- *
- * Maybe I should reset more registers to defaults in here? SOFTRST should
- * do that for me.
- *
- * Method:
- * 1. send a SOFT RESET
- * 2. wait for it to finish
- * 3. enable autorelease mode
- * 4. reset the memory management unit
- * 5. clear all interrupts
- *
-*/
-static void smc_reset (void)
-{
- PRINTK2 ("%s:smc_reset\n", SMC_DEV_NAME);
-
- /* This resets the registers mostly to defaults, but doesn't
- affect EEPROM. That seems unnecessary */
- SMC_SELECT_BANK (0);
- SMC_outw (LAN91C96_RCR_SOFT_RST, LAN91C96_RCR);
-
- udelay (10);
-
- /* Disable transmit and receive functionality */
- SMC_outw (0, LAN91C96_RCR);
- SMC_outw (0, LAN91C96_TCR);
-
- /* set the control register */
- SMC_SELECT_BANK (1);
- SMC_outw (SMC_inw (LAN91C96_CONTROL) | LAN91C96_CTR_BIT_8,
- LAN91C96_CONTROL);
-
- /* Disable all interrupts */
- SMC_outb (0, LAN91C96_INT_MASK);
-}
-
-/*
- * Function: smc_enable
- * Purpose: let the chip talk to the outside work
- * Method:
- * 1. Initialize the Memory Configuration Register
- * 2. Enable the transmitter
- * 3. Enable the receiver
-*/
-static void smc_enable ()
-{
- PRINTK2 ("%s:smc_enable\n", SMC_DEV_NAME);
- SMC_SELECT_BANK (0);
-
- /* Initialize the Memory Configuration Register. See page
- 49 of the LAN91C96 data sheet for details. */
- SMC_outw (LAN91C96_MCR_TRANSMIT_PAGES, LAN91C96_MCR);
-
- /* Initialize the Transmit Control Register */
- SMC_outw (LAN91C96_TCR_TXENA, LAN91C96_TCR);
- /* Initialize the Receive Control Register
- * FIXME:
- * The promiscuous bit set because I could not receive ARP reply
- * packets from the server when I send a ARP request. It only works
- * when I set the promiscuous bit
- */
- SMC_outw (LAN91C96_RCR_RXEN | LAN91C96_RCR_PRMS, LAN91C96_RCR);
-}
-
-/*
- * Function: smc_shutdown
- * Purpose: closes down the SMC91xxx chip.
- * Method:
- * 1. zero the interrupt mask
- * 2. clear the enable receive flag
- * 3. clear the enable xmit flags
- *
- * TODO:
- * (1) maybe utilize power down mode.
- * Why not yet? Because while the chip will go into power down mode,
- * the manual says that it will wake up in response to any I/O requests
- * in the register space. Empirical results do not show this working.
- */
-static void smc_shutdown ()
-{
- PRINTK2 (CARDNAME ":smc_shutdown\n");
-
- /* no more interrupts for me */
- SMC_SELECT_BANK (2);
- SMC_outb (0, LAN91C96_INT_MASK);
-
- /* and tell the card to stay away from that nasty outside world */
- SMC_SELECT_BANK (0);
- SMC_outb (0, LAN91C96_RCR);
- SMC_outb (0, LAN91C96_TCR);
-}
-
-
-/*
- * Function: smc_hardware_send_packet(struct net_device * )
- * Purpose:
- * This sends the actual packet to the SMC9xxx chip.
- *
- * Algorithm:
- * First, see if a saved_skb is available.
- * ( this should NOT be called if there is no 'saved_skb'
- * Now, find the packet number that the chip allocated
- * Point the data pointers at it in memory
- * Set the length word in the chip's memory
- * Dump the packet to chip memory
- * Check if a last byte is needed ( odd length packet )
- * if so, set the control flag right
- * Tell the card to send it
- * Enable the transmit interrupt, so I know if it failed
- * Free the kernel data if I actually sent it.
- */
-static int smc_send_packet (volatile void *packet, int packet_length)
-{
- byte packet_no;
- unsigned long ioaddr;
- byte *buf;
- int length;
- int numPages;
- int try = 0;
- int time_out;
- byte status;
-
-
- PRINTK3 ("%s:smc_hardware_send_packet\n", SMC_DEV_NAME);
-
- length = ETH_ZLEN < packet_length ? packet_length : ETH_ZLEN;
-
- /* allocate memory
- ** The MMU wants the number of pages to be the number of 256 bytes
- ** 'pages', minus 1 ( since a packet can't ever have 0 pages :) )
- **
- ** The 91C111 ignores the size bits, but the code is left intact
- ** for backwards and future compatibility.
- **
- ** Pkt size for allocating is data length +6 (for additional status
- ** words, length and ctl!)
- **
- ** If odd size then last byte is included in this header.
- */
- numPages = ((length & 0xfffe) + 6);
- numPages >>= 8; /* Divide by 256 */
-
- if (numPages > 7) {
- printf ("%s: Far too big packet error. \n", SMC_DEV_NAME);
- return 0;
- }
-
- /* now, try to allocate the memory */
-
- SMC_SELECT_BANK (2);
- SMC_outw (LAN91C96_MMUCR_ALLOC_TX | numPages, LAN91C96_MMU);
-
- again:
- try++;
- time_out = MEMORY_WAIT_TIME;
- do {
- status = SMC_inb (LAN91C96_INT_STATS);
- if (status & LAN91C96_IST_ALLOC_INT) {
-
- SMC_outb (LAN91C96_IST_ALLOC_INT, LAN91C96_INT_STATS);
- break;
- }
- } while (--time_out);
-
- if (!time_out) {
- PRINTK2 ("%s: memory allocation, try %d failed ...\n",
- SMC_DEV_NAME, try);
- if (try < SMC_ALLOC_MAX_TRY)
- goto again;
- else
- return 0;
- }
-
- PRINTK2 ("%s: memory allocation, try %d succeeded ...\n",
- SMC_DEV_NAME, try);
-
- /* I can send the packet now.. */
-
- ioaddr = SMC_BASE_ADDRESS;
-
- buf = (byte *) packet;
-
- /* If I get here, I _know_ there is a packet slot waiting for me */
- packet_no = SMC_inb (LAN91C96_ARR);
- if (packet_no & LAN91C96_ARR_FAILED) {
- /* or isn't there? BAD CHIP! */
- printf ("%s: Memory allocation failed. \n", SMC_DEV_NAME);
- return 0;
- }
-
- /* we have a packet address, so tell the card to use it */
- SMC_outb (packet_no, LAN91C96_PNR);
-
- /* point to the beginning of the packet */
- SMC_outw (LAN91C96_PTR_AUTO_INCR, LAN91C96_POINTER);
-
- PRINTK3 ("%s: Trying to xmit packet of length %x\n",
- SMC_DEV_NAME, length);
-
-#if SMC_DEBUG > 2
- printf ("Transmitting Packet\n");
- print_packet (buf, length);
-#endif
-
- /* send the packet length ( +6 for status, length and ctl byte )
- and the status word ( set to zeros ) */
-#ifdef USE_32_BIT
- SMC_outl ((length + 6) << 16, LAN91C96_DATA_HIGH);
-#else
- SMC_outw (0, LAN91C96_DATA_HIGH);
- /* send the packet length ( +6 for status words, length, and ctl */
- SMC_outw ((length + 6), LAN91C96_DATA_HIGH);
-#endif /* USE_32_BIT */
-
- /* send the actual data
- * I _think_ it's faster to send the longs first, and then
- * mop up by sending the last word. It depends heavily
- * on alignment, at least on the 486. Maybe it would be
- * a good idea to check which is optimal? But that could take
- * almost as much time as is saved?
- */
-#ifdef USE_32_BIT
- SMC_outsl (LAN91C96_DATA_HIGH, buf, length >> 2);
- if (length & 0x2)
- SMC_outw (*((word *) (buf + (length & 0xFFFFFFFC))),
- LAN91C96_DATA_HIGH);
-#else
- SMC_outsw (LAN91C96_DATA_HIGH, buf, (length) >> 1);
-#endif /* USE_32_BIT */
-
- /* Send the last byte, if there is one. */
- if ((length & 1) == 0) {
- SMC_outw (0, LAN91C96_DATA_HIGH);
- } else {
- SMC_outw (buf[length - 1] | 0x2000, LAN91C96_DATA_HIGH);
- }
-
- /* and let the chipset deal with it */
- SMC_outw (LAN91C96_MMUCR_ENQUEUE, LAN91C96_MMU);
-
- /* poll for TX INT */
- if (poll4int (LAN91C96_MSK_TX_INT, SMC_TX_TIMEOUT)) {
- /* sending failed */
- PRINTK2 ("%s: TX timeout, sending failed...\n", SMC_DEV_NAME);
-
- /* release packet */
- SMC_outw (LAN91C96_MMUCR_RELEASE_TX, LAN91C96_MMU);
-
- /* wait for MMU getting ready (low) */
- while (SMC_inw (LAN91C96_MMU) & LAN91C96_MMUCR_NO_BUSY) {
- udelay (10);
- }
-
- PRINTK2 ("MMU ready\n");
-
-
- return 0;
- } else {
- /* ack. int */
- SMC_outw (LAN91C96_IST_TX_INT, LAN91C96_INT_STATS);
-
- PRINTK2 ("%s: Sent packet of length %d \n", SMC_DEV_NAME, length);
-
- /* release packet */
- SMC_outw (LAN91C96_MMUCR_RELEASE_TX, LAN91C96_MMU);
-
- /* wait for MMU getting ready (low) */
- while (SMC_inw (LAN91C96_MMU) & LAN91C96_MMUCR_NO_BUSY) {
- udelay (10);
- }
-
- PRINTK2 ("MMU ready\n");
- }
-
- return length;
-}
-
-/*-------------------------------------------------------------------------
- * smc_destructor( struct net_device * dev )
- * Input parameters:
- * dev, pointer to the device structure
- *
- * Output:
- * None.
- *--------------------------------------------------------------------------
- */
-void smc_destructor ()
-{
- PRINTK2 (CARDNAME ":smc_destructor\n");
-}
-
-
-/*
- * Open and Initialize the board
- *
- * Set up everything, reset the card, etc ..
- *
- */
-static int smc_open (bd_t *bd)
-{
- int i, err; /* used to set hw ethernet address */
-
- PRINTK2 ("%s:smc_open\n", SMC_DEV_NAME);
-
- /* reset the hardware */
-
- smc_reset ();
- smc_enable ();
-
- SMC_SELECT_BANK (1);
-
- err = smc_get_ethaddr (bd); /* set smc_mac_addr, and sync it with u-boot globals */
- if (err < 0) {
- memset (bd->bi_enetaddr, 0, 6); /* hack to make error stick! upper code will abort if not set */
- return (-1); /* upper code ignores this, but NOT bi_enetaddr */
- }
-#ifdef USE_32_BIT
- for (i = 0; i < 6; i += 2) {
- word address;
-
- address = smc_mac_addr[i + 1] << 8;
- address |= smc_mac_addr[i];
- SMC_outw (address, LAN91C96_IA0 + i);
- }
-#else
- for (i = 0; i < 6; i++)
- SMC_outb (smc_mac_addr[i], LAN91C96_IA0 + i);
-#endif
- return 0;
-}
-
-/*-------------------------------------------------------------
- *
- * smc_rcv - receive a packet from the card
- *
- * There is ( at least ) a packet waiting to be read from
- * chip-memory.
- *
- * o Read the status
- * o If an error, record it
- * o otherwise, read in the packet
- *-------------------------------------------------------------
- */
-static int smc_rcv ()
-{
- int packet_number;
- word status;
- word packet_length;
- int is_error = 0;
-
-#ifdef USE_32_BIT
- dword stat_len;
-#endif
-
-
- SMC_SELECT_BANK (2);
- packet_number = SMC_inw (LAN91C96_FIFO);
-
- if (packet_number & LAN91C96_FIFO_RXEMPTY) {
- return 0;
- }
-
- PRINTK3 ("%s:smc_rcv\n", SMC_DEV_NAME);
- /* start reading from the start of the packet */
- SMC_outw (LAN91C96_PTR_READ | LAN91C96_PTR_RCV |
- LAN91C96_PTR_AUTO_INCR, LAN91C96_POINTER);
-
- /* First two words are status and packet_length */
-#ifdef USE_32_BIT
- stat_len = SMC_inl (LAN91C96_DATA_HIGH);
- status = stat_len & 0xffff;
- packet_length = stat_len >> 16;
-#else
- status = SMC_inw (LAN91C96_DATA_HIGH);
- packet_length = SMC_inw (LAN91C96_DATA_HIGH);
-#endif
-
- packet_length &= 0x07ff; /* mask off top bits */
-
- PRINTK2 ("RCV: STATUS %4x LENGTH %4x\n", status, packet_length);
-
- if (!(status & FRAME_FILTER)) {
- /* Adjust for having already read the first two words */
- packet_length -= 4; /*4; */
-
-
- /* set odd length for bug in LAN91C111, */
- /* which never sets RS_ODDFRAME */
- /* TODO ? */
-
-
-#ifdef USE_32_BIT
- PRINTK3 (" Reading %d dwords (and %d bytes) \n",
- packet_length >> 2, packet_length & 3);
- /* QUESTION: Like in the TX routine, do I want
- to send the DWORDs or the bytes first, or some
- mixture. A mixture might improve already slow PIO
- performance */
- SMC_insl (LAN91C96_DATA_HIGH, NetRxPackets[0], packet_length >> 2);
- /* read the left over bytes */
- if (packet_length & 3) {
- int i;
-
- byte *tail = (byte *) (NetRxPackets[0] + (packet_length & ~3));
- dword leftover = SMC_inl (LAN91C96_DATA_HIGH);
-
- for (i = 0; i < (packet_length & 3); i++)
- *tail++ = (byte) (leftover >> (8 * i)) & 0xff;
- }
-#else
- PRINTK3 (" Reading %d words and %d byte(s) \n",
- (packet_length >> 1), packet_length & 1);
- SMC_insw (LAN91C96_DATA_HIGH, NetRxPackets[0], packet_length >> 1);
-
-#endif /* USE_32_BIT */
-
-#if SMC_DEBUG > 2
- printf ("Receiving Packet\n");
- print_packet (NetRxPackets[0], packet_length);
-#endif
- } else {
- /* error ... */
- /* TODO ? */
- is_error = 1;
- }
-
- while (SMC_inw (LAN91C96_MMU) & LAN91C96_MMUCR_NO_BUSY)
- udelay (1); /* Wait until not busy */
-
- /* error or good, tell the card to get rid of this packet */
- SMC_outw (LAN91C96_MMUCR_RELEASE_RX, LAN91C96_MMU);
-
- while (SMC_inw (LAN91C96_MMU) & LAN91C96_MMUCR_NO_BUSY)
- udelay (1); /* Wait until not busy */
-
- if (!is_error) {
- /* Pass the packet up to the protocol layers. */
- NetReceive (NetRxPackets[0], packet_length);
- return packet_length;
- } else {
- return 0;
- }
-
-}
-
-/*----------------------------------------------------
- * smc_close
- *
- * this makes the board clean up everything that it can
- * and not talk to the outside world. Caused by
- * an 'ifconfig ethX down'
- *
- -----------------------------------------------------*/
-static int smc_close ()
-{
- PRINTK2 ("%s:smc_close\n", SMC_DEV_NAME);
-
- /* clear everything */
- smc_shutdown ();
-
- return 0;
-}
-
-#if SMC_DEBUG > 2
-static void print_packet (byte * buf, int length)
-{
-#if 0
- int i;
- int remainder;
- int lines;
-
- printf ("Packet of length %d \n", length);
-
- lines = length / 16;
- remainder = length % 16;
-
- for (i = 0; i < lines; i++) {
- int cur;
-
- for (cur = 0; cur < 8; cur++) {
- byte a, b;
-
- a = *(buf++);
- b = *(buf++);
- printf ("%02x%02x ", a, b);
- }
- printf ("\n");
- }
- for (i = 0; i < remainder / 2; i++) {
- byte a, b;
-
- a = *(buf++);
- b = *(buf++);
- printf ("%02x%02x ", a, b);
- }
- printf ("\n");
-#endif /* 0 */
-}
-#endif /* SMC_DEBUG > 2 */
-
-int eth_init (bd_t * bd)
-{
- return (smc_open(bd));
-}
-
-void eth_halt ()
-{
- smc_close ();
-}
-
-int eth_rx ()
-{
- return smc_rcv ();
-}
-
-int eth_send (volatile void *packet, int length)
-{
- return smc_send_packet (packet, length);
-}
-
-
-#if 0
-/*-------------------------------------------------------------------------
- * smc_hw_init()
- *
- * Function:
- * Reset and enable the device, check if the I/O space location
- * is correct
- *
- * Input parameters:
- * None
- *
- * Output:
- * 0 --> success
- * 1 --> error
- *--------------------------------------------------------------------------
- */
-static int smc_hw_init ()
-{
- unsigned short status_test;
-
- /* The attribute register of the LAN91C96 is located at address
- 0x0e000000 on the lubbock platform */
- volatile unsigned *attaddr = (unsigned *) (0x0e000000);
-
- /* first reset, then enable the device. Sequence is critical */
- attaddr[LAN91C96_ECOR] |= LAN91C96_ECOR_SRESET;
- udelay (100);
- attaddr[LAN91C96_ECOR] &= ~LAN91C96_ECOR_SRESET;
- attaddr[LAN91C96_ECOR] |= LAN91C96_ECOR_ENABLE;
-
- /* force 16-bit mode */
- attaddr[LAN91C96_ECSR] &= ~LAN91C96_ECSR_IOIS8;
- udelay (100);
-
- /* check if the I/O address is correct, the upper byte of the
- bank select register should read 0x33 */
-
- status_test = SMC_inw (LAN91C96_BANK_SELECT);
- if ((status_test & 0xFF00) != 0x3300) {
- printf ("Failed to initialize ethernetchip\n");
- return 1;
- }
- return 0;
-}
-#endif /* 0 */
-
-#endif /* COMMANDS & CFG_NET */
-
-
-/* smc_get_ethaddr (bd_t * bd)
- *
- * This checks both the environment and the ROM for an ethernet address. If
- * found, the environment takes precedence.
- */
-
-int smc_get_ethaddr (bd_t * bd)
-{
- int env_size = 0;
- int rom_valid = 0;
- int env_present = 0;
- int reg = 0;
- char *s = NULL;
- char *e = NULL;
- char *v_mac, es[] = "11:22:33:44:55:66";
- char s_env_mac[64];
- uchar v_env_mac[6];
- uchar v_rom_mac[6];
-
- env_size = getenv_r ("ethaddr", s_env_mac, sizeof (s_env_mac));
- if (env_size != sizeof(es)) { /* Ignore if env is bad or not set */
- printf ("\n*** Warning: ethaddr is not set properly, ignoring!!\n");
- } else {
- env_present = 1;
- s = s_env_mac;
-
- for (reg = 0; reg < 6; ++reg) { /* turn string into mac value */
- v_env_mac[reg] = s ? simple_strtoul (s, &e, 16) : 0;
- if (s)
- s = (*e) ? e + 1 : e;
- }
- }
-
- rom_valid = get_rom_mac (v_rom_mac); /* get ROM mac value if any */
-
- if (!env_present) { /* if NO env */
- if (rom_valid) { /* but ROM is valid */
- v_mac = (char *)v_rom_mac;
- sprintf (s_env_mac, "%02X:%02X:%02X:%02X:%02X:%02X",
- v_mac[0], v_mac[1], v_mac[2], v_mac[3],
- v_mac[4], v_mac[5]);
- setenv ("ethaddr", s_env_mac);
- } else { /* no env, bad ROM */
- printf ("\n*** ERROR: ethaddr is NOT set !!\n");
- return (-1);
- }
- } else { /* good env, don't care ROM */
- v_mac = (char *)v_env_mac; /* always use a good env over a ROM */
- }
-
- if (env_present && rom_valid) { /* if both env and ROM are good */
- if (memcmp (v_env_mac, v_rom_mac, 6) != 0) {
- printf ("\nWarning: MAC addresses don't match:\n");
- printf ("\tHW MAC address: "
- "%02X:%02X:%02X:%02X:%02X:%02X\n",
- v_rom_mac[0], v_rom_mac[1],
- v_rom_mac[2], v_rom_mac[3],
- v_rom_mac[4], v_rom_mac[5] );
- printf ("\t\"ethaddr\" value: "
- "%02X:%02X:%02X:%02X:%02X:%02X\n",
- v_env_mac[0], v_env_mac[1],
- v_env_mac[2], v_env_mac[3],
- v_env_mac[4], v_env_mac[5]) ;
- debug ("### Set MAC addr from environment\n");
- }
- }
- memcpy (bd->bi_enetaddr, v_mac, 6); /* update global address to match env (allows env changing) */
- smc_set_mac_addr ((unsigned char *)v_mac); /* use old function to update smc default */
- PRINTK("Using MAC Address %02X:%02X:%02X:%02X:%02X:%02X\n", v_mac[0], v_mac[1],
- v_mac[2], v_mac[3], v_mac[4], v_mac[5]);
- return (0);
-}
-
-/*
- * get_rom_mac()
- * Note, this has omly been tested for the OMAP730 P2.
- */
-
-int get_rom_mac (unsigned char *v_rom_mac)
-{
-#ifdef HARDCODE_MAC /* used for testing or to supress run time warnings */
- char hw_mac_addr[] = { 0x02, 0x80, 0xad, 0x20, 0x31, 0xb8 };
-
- memcpy (v_rom_mac, hw_mac_addr, 6);
- return (1);
-#else
- int i;
- SMC_SELECT_BANK (1);
- for (i=0; i<6; i++)
- {
- v_rom_mac[i] = SMC_inb (LAN91C96_IA0 + i);
- }
- return (1);
-#endif
-}
-
-#endif /* CONFIG_DRIVER_LAN91C96 */