diff options
Diffstat (limited to 'drivers/net/lan91c96.c')
| -rw-r--r-- | drivers/net/lan91c96.c | 870 |
1 files changed, 0 insertions, 870 deletions
diff --git a/drivers/net/lan91c96.c b/drivers/net/lan91c96.c deleted file mode 100644 index a89c959cee..0000000000 --- a/drivers/net/lan91c96.c +++ /dev/null @@ -1,870 +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 (CONFIG_COMMANDS & CFG_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); - -/* - * 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. - */ - - -/*********************************************** - * 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) -{ -} -#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); -} - - - -#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 */ |