. Rolf Offermanns <rof@sysgo.de>
.
. Copyright (C) 2001 Standard Microsystems Corporation (SMSC)
- . Developed by Simple Network Magic Corporation (SNMC)
+ . 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
.
. 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
+ . 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
+ . Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
.
. Information contained in this file was obtained from the LAN91C111
. manual from SMC. To get a copy, if you really want one, you can find
. EEPROM interface for configuration
.
. Arguments:
- . io = for the base address
+ . io = for the base address
. irq = for the IRQ
.
. author:
- . Erik Stahlman ( erik@vt.edu )
- . Daris A Nevil ( dnevil@snmc.com )
+ . Erik Stahlman ( erik@vt.edu )
+ . Daris A Nevil ( dnevil@snmc.com )
.
.
. Hardware multicast code from Peter Cammaert ( pc@denkart.be )
.
. Sources:
- . o SMSC LAN91C111 databook (www.smsc.com)
- . o smc9194.c by Erik Stahlman
- . o skeleton.c by Donald Becker ( becker@cesdis.gsfc.nasa.gov )
+ . o SMSC LAN91C111 databook (www.smsc.com)
+ . o smc9194.c by Erik Stahlman
+ . o skeleton.c by Donald Becker ( becker@cesdis.gsfc.nasa.gov )
.
. History:
- . 06/19/03 Richard Woodruff Made u-boot environment aware and added mac addr checks.
+ . 06/19/03 Richard Woodruff Made u-boot environment aware and added mac addr checks.
. 10/17/01 Marco Hasewinkel Modify for DNP/1110
- . 07/25/01 Woojung Huh Modify for ADS Bitsy
- . 04/25/01 Daris A Nevil Initial public release through SMSC
- . 03/16/01 Daris A Nevil Modified smc9194.c for use with LAN91C111
+ . 07/25/01 Woojung Huh Modify for ADS Bitsy
+ . 04/25/01 Daris A Nevil Initial public release through SMSC
+ . 03/16/01 Daris A Nevil Modified smc9194.c for use with LAN91C111
----------------------------------------------------------------------------*/
#include <common.h>
#include <command.h>
+#include <config.h>
#include "smc91111.h"
#include <net.h>
"smc91111.c:v1.0 04/25/01 by Daris A Nevil (dnevil@snmc.com)\n";
#endif
+/* Autonegotiation timeout in seconds */
+#ifndef CONFIG_SMC_AUTONEG_TIMEOUT
+#define CONFIG_SMC_AUTONEG_TIMEOUT 10
+#endif
+
/*------------------------------------------------------------------------
.
. Configuration options, for the experienced user to change.
/*------------------------------------------------------------------------
.
- . The internal workings of the driver. If you are changing anything
+ . 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 ETH_ZLEN 60
-#ifdef CONFIG_SMC_USE_32_BIT
+#ifdef CONFIG_SMC_USE_32_BIT
#define USE_32_BIT 1
#else
#undef USE_32_BIT
extern int eth_rx(void);
extern int eth_send(volatile void *packet, int length);
+#ifdef SHARED_RESOURCES
+ extern void swap_to(int device_id);
+#endif
/*
. This is called by register_netdev(). It is responsible for
. If an EEPROM is present it really should be consulted.
*/
int smc_get_ethaddr(bd_t *bd);
-int get_rom_mac(char *v_rom_mac);
+int get_rom_mac(uchar *v_rom_mac);
/*
------------------------------------------------------------
------------------------------------------------------------
*/
+#ifdef CONFIG_SMC_USE_IOFUNCS
+/*
+ * input and output functions
+ *
+ * Implemented due to inx,outx macros accessing the device improperly
+ * and putting the device into an unkown state.
+ *
+ * For instance, on Sharp LPD7A400 SDK, affects were chip memory
+ * could not be free'd (hence the alloc failures), duplicate packets,
+ * packets being corrupt (shifted) on the wire, etc. Switching to the
+ * inx,outx functions fixed this problem.
+ */
+static inline word SMC_inw(dword offset);
+static inline void SMC_outw(word value, dword offset);
+static inline byte SMC_inb(dword offset);
+static inline void SMC_outb(byte value, dword offset);
+static inline void SMC_insw(dword offset, volatile uchar* buf, dword len);
+static inline void SMC_outsw(dword offset, uchar* buf, dword len);
+
+#define barrier() __asm__ __volatile__("": : :"memory")
+
+static inline word SMC_inw(dword offset)
+{
+ word v;
+ v = *((volatile word*)(SMC_BASE_ADDRESS+offset));
+ barrier(); *(volatile u32*)(0xc0000000);
+ return v;
+}
+
+static inline void SMC_outw(word value, dword offset)
+{
+ *((volatile word*)(SMC_BASE_ADDRESS+offset)) = value;
+ barrier(); *(volatile u32*)(0xc0000000);
+}
+
+static inline byte SMC_inb(dword offset)
+{
+ word _w;
+
+ _w = SMC_inw(offset & ~((dword)1));
+ return (offset & 1) ? (byte)(_w >> 8) : (byte)(_w);
+}
+
+static inline void SMC_outb(byte value, dword offset)
+{
+ word _w;
+
+ _w = SMC_inw(offset & ~((dword)1));
+ if (offset & 1)
+ *((volatile word*)(SMC_BASE_ADDRESS+(offset & ~((dword)1)))) = (value<<8) | (_w & 0x00ff);
+ else
+ *((volatile word*)(SMC_BASE_ADDRESS+offset)) = value | (_w & 0xff00);
+}
+
+static inline void SMC_insw(dword offset, volatile uchar* buf, dword len)
+{
+ volatile word *p = (volatile word *)buf;
+
+ while (len-- > 0) {
+ *p++ = SMC_inw(offset);
+ barrier();
+ *((volatile u32*)(0xc0000000));
+ }
+}
+
+static inline void SMC_outsw(dword offset, uchar* buf, dword len)
+{
+ volatile word *p = (volatile word *)buf;
+
+ while (len-- > 0) {
+ SMC_outw(*p++, offset);
+ barrier();
+ *(volatile u32*)(0xc0000000);
+ }
+}
+#endif /* CONFIG_SMC_USE_IOFUNCS */
+
static char unsigned smc_mac_addr[6] = {0x02, 0x80, 0xad, 0x20, 0x31, 0xb8};
/*
* the default mac address.
*/
-void smc_set_mac_addr(const char *addr) {
+void smc_set_mac_addr(const unsigned char *addr) {
int i;
for (i=0; i < sizeof(smc_mac_addr); i++){
#endif /* 0 */
/***********************************************
- * Show available memory *
+ * Show available memory *
***********************************************/
void dump_memory_info(void)
{
/*
. 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.
+ . 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.
*/
static void smc_reset (void)
{
- PRINTK2 ("%s:smc_reset\n", SMC_DEV_NAME);
+ PRINTK2 ("%s: smc_reset\n", SMC_DEV_NAME);
/* This resets the registers mostly to defaults, but doesn't
affect EEPROM. That seems unnecessary */
*/
static void smc_enable()
{
- PRINTK2("%s:smc_enable\n", SMC_DEV_NAME);
+ PRINTK2("%s: smc_enable\n", SMC_DEV_NAME);
SMC_SELECT_BANK( 0 );
/* see the header file for options in TCR/RCR DEFAULT*/
SMC_outw( TCR_DEFAULT, TCR_REG );
. (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.
+ . in the register space. Empirical results do not show this working.
*/
static void smc_shutdown()
{
- PRINTK2(CARDNAME ":smc_shutdown\n");
+ PRINTK2(CARDNAME ": smc_shutdown\n");
/* no more interrupts for me */
SMC_SELECT_BANK( 2 );
SMC_SELECT_BANK( 0 );
SMC_outb( RCR_CLEAR, RCR_REG );
SMC_outb( TCR_CLEAR, TCR_REG );
+#ifdef SHARED_RESOURCES
+ swap_to(FLASH);
+#endif
}
. This sends the actual packet to the SMC9xxx chip.
.
. Algorithm:
- . First, see if a saved_skb is available.
+ . 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
. 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
+ . 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.
+ . Free the kernel data if I actually sent it.
*/
static int smc_send_packet (volatile void *packet, int packet_length)
{
int try = 0;
int time_out;
byte status;
+ byte saved_pnr;
+ word saved_ptr;
+ /* save PTR and PNR registers before manipulation */
+ SMC_SELECT_BANK (2);
+ saved_pnr = SMC_inb( PN_REG );
+ saved_ptr = SMC_inw( PTR_REG );
- PRINTK3 ("%s:smc_hardware_send_packet\n", SMC_DEV_NAME);
+ PRINTK3 ("%s: smc_hardware_send_packet\n", SMC_DEV_NAME);
length = ETH_ZLEN < packet_length ? packet_length : ETH_ZLEN;
SMC_outw (MC_ALLOC | numPages, MMU_CMD_REG);
/* FIXME: the ALLOC_INT bit never gets set *
- * so the following will always give a *
- * memory allocation error. *
- * same code works in armboot though *
+ * so the following will always give a *
+ * memory allocation error. *
+ * same code works in armboot though *
* -ro
*/
}
/* we have a packet address, so tell the card to use it */
+#ifndef CONFIG_XAENIAX
SMC_outb (packet_no, PN_REG);
+#else
+ /* On Xaeniax board, we can't use SMC_outb here because that way
+ * the Allocate MMU command will end up written to the command register
+ * as well, which will lead to a problem.
+ */
+ SMC_outl (packet_no << 16, 0);
+#endif
+ /* do not write new ptr value if Write data fifo not empty */
+ while ( saved_ptr & PTR_NOTEMPTY )
+ printf ("Write data fifo not empty!\n");
/* point to the beginning of the packet */
SMC_outw (PTR_AUTOINC, PTR_REG);
/* 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
+ . 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 (SMC91111_DATA_REG, buf, length >> 2);
+#ifndef CONFIG_XAENIAX
if (length & 0x2)
SMC_outw (*((word *) (buf + (length & 0xFFFFFFFC))),
SMC91111_DATA_REG);
+#else
+ /* On XANEIAX, we can only use 32-bit writes, so we need to handle
+ * unaligned tail part specially. The standard code doesn't work.
+ */
+ if ((length & 3) == 3) {
+ u16 * ptr = (u16*) &buf[length-3];
+ SMC_outl((*ptr) | ((0x2000 | buf[length-1]) << 16),
+ SMC91111_DATA_REG);
+ } else if ((length & 2) == 2) {
+ u16 * ptr = (u16*) &buf[length-2];
+ SMC_outl(*ptr, SMC91111_DATA_REG);
+ } else if (length & 1) {
+ SMC_outl((0x2000 | buf[length-1]), SMC91111_DATA_REG);
+ } else {
+ SMC_outl(0, SMC91111_DATA_REG);
+ }
+#endif
#else
SMC_outsw (SMC91111_DATA_REG, buf, (length) >> 1);
#endif /* USE_32_BIT */
- /* Send the last byte, if there is one. */
+#ifndef CONFIG_XAENIAX
+ /* Send the last byte, if there is one. */
if ((length & 1) == 0) {
SMC_outw (0, SMC91111_DATA_REG);
} else {
SMC_outw (buf[length - 1] | 0x2000, SMC91111_DATA_REG);
}
+#endif
/* and let the chipset deal with it */
SMC_outw (MC_ENQUEUE, MMU_CMD_REG);
/* poll for TX INT */
- if (poll4int (IM_TX_INT, SMC_TX_TIMEOUT)) {
+ /* if (poll4int (IM_TX_INT, SMC_TX_TIMEOUT)) { */
+ /* poll for TX_EMPTY INT - autorelease enabled */
+ if (poll4int(IM_TX_EMPTY_INT, SMC_TX_TIMEOUT)) {
/* sending failed */
PRINTK2 ("%s: TX timeout, sending failed...\n", SMC_DEV_NAME);
/* release packet */
- SMC_outw (MC_FREEPKT, MMU_CMD_REG);
+ /* no need to release, MMU does that now */
+#ifdef CONFIG_XAENIAX
+ SMC_outw (MC_FREEPKT, MMU_CMD_REG);
+#endif
/* wait for MMU getting ready (low) */
while (SMC_inw (MMU_CMD_REG) & MC_BUSY) {
return 0;
} else {
/* ack. int */
- SMC_outb (IM_TX_INT, SMC91111_INT_REG);
+ SMC_outb (IM_TX_EMPTY_INT, SMC91111_INT_REG);
+ /* SMC_outb (IM_TX_INT, SMC91111_INT_REG); */
PRINTK2 ("%s: Sent packet of length %d \n", SMC_DEV_NAME,
length);
/* release packet */
+ /* no need to release, MMU does that now */
+#ifdef CONFIG_XAENIAX
SMC_outw (MC_FREEPKT, MMU_CMD_REG);
+#endif
/* wait for MMU getting ready (low) */
while (SMC_inw (MMU_CMD_REG) & MC_BUSY) {
}
+ /* restore previously saved registers */
+#ifndef CONFIG_XAENIAX
+ SMC_outb( saved_pnr, PN_REG );
+#else
+ /* On Xaeniax board, we can't use SMC_outb here because that way
+ * the Allocate MMU command will end up written to the command register
+ * as well, which will lead to a problem.
+ */
+ SMC_outl(saved_pnr << 16, 0);
+#endif
+ SMC_outw( saved_ptr, PTR_REG );
+
return length;
}
*/
void smc_destructor()
{
- PRINTK2(CARDNAME ":smc_destructor\n");
+ PRINTK2(CARDNAME ": smc_destructor\n");
}
{
int i, err;
- PRINTK2 ("%s:smc_open\n", SMC_DEV_NAME);
+ PRINTK2 ("%s: smc_open\n", SMC_DEV_NAME);
/* reset the hardware */
smc_reset ();
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 */
+ 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
address = smc_mac_addr[i + 1] << 8;
address |= smc_mac_addr[i];
- SMC_outw (address, ADDR0_REG + i);
+ SMC_outw (address, (ADDR0_REG + i));
}
#else
for (i = 0; i < 6; i++)
- SMC_outb (smc_mac_addr[i], ADDR0_REG + i);
+ SMC_outb (smc_mac_addr[i], (ADDR0_REG + i));
#endif
return 0;
*/
static int smc_rcv()
{
- int packet_number;
+ int packet_number;
word status;
word packet_length;
- int is_error = 0;
+ int is_error = 0;
#ifdef USE_32_BIT
dword stat_len;
#endif
+ byte saved_pnr;
+ word saved_ptr;
SMC_SELECT_BANK(2);
+ /* save PTR and PTR registers */
+ saved_pnr = SMC_inb( PN_REG );
+ saved_ptr = SMC_inw( PTR_REG );
+
packet_number = SMC_inw( RXFIFO_REG );
if ( packet_number & RXFIFO_REMPTY ) {
return 0;
}
- PRINTK3("%s:smc_rcv\n", SMC_DEV_NAME);
+ PRINTK3("%s: smc_rcv\n", SMC_DEV_NAME);
/* start reading from the start of the packet */
SMC_outw( PTR_READ | PTR_RCV | PTR_AUTOINC, PTR_REG );
status = stat_len & 0xffff;
packet_length = stat_len >> 16;
#else
- status = SMC_inw( SMC91111_DATA_REG );
- packet_length = SMC_inw( SMC91111_DATA_REG );
+ status = SMC_inw( SMC91111_DATA_REG );
+ packet_length = SMC_inw( SMC91111_DATA_REG );
#endif
packet_length &= 0x07ff; /* mask off top bits */
/* 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 */
+ performance */
SMC_insl( SMC91111_DATA_REG , NetRxPackets[0], packet_length >> 2 );
/* read the left over bytes */
if (packet_length & 3) {
while ( SMC_inw( MMU_CMD_REG ) & MC_BUSY )
udelay(1); /* Wait until not busy */
+ /* restore saved registers */
+#ifndef CONFIG_XAENIAX
+ SMC_outb( saved_pnr, PN_REG );
+#else
+ /* On Xaeniax board, we can't use SMC_outb here because that way
+ * the Allocate MMU command will end up written to the command register
+ * as well, which will lead to a problem.
+ */
+ SMC_outl( saved_pnr << 16, 0);
+#endif
+ SMC_outw( saved_ptr, PTR_REG );
+
if (!is_error) {
/* Pass the packet up to the protocol layers. */
NetReceive(NetRxPackets[0], packet_length);
. smc_close
.
. this makes the board clean up everything that it can
- . and not talk to the outside world. Caused by
+ . 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);
+ PRINTK2("%s: smc_close\n", SMC_DEV_NAME);
/* clear everything */
smc_shutdown();
word status = 0; /*;my status = 0 */
int failed = 0;
- PRINTK3 ("%s:smc_program_phy()\n", SMC_DEV_NAME);
+ PRINTK3 ("%s: smc_program_phy()\n", SMC_DEV_NAME);
/* Get the detected phy address */
/* Update our Auto-Neg Advertisement Register */
smc_write_phy_register (PHY_AD_REG, my_ad_caps);
- PRINTK2 ("%s:phy caps=%x\n", SMC_DEV_NAME, my_phy_caps);
- PRINTK2 ("%s:phy advertised caps=%x\n", SMC_DEV_NAME, my_ad_caps);
+ /* Read the register back. Without this, it appears that when */
+ /* auto-negotiation is restarted, sometimes it isn't ready and */
+ /* the link does not come up. */
+ smc_read_phy_register(PHY_AD_REG);
+
+ PRINTK2 ("%s: phy caps=%x\n", SMC_DEV_NAME, my_phy_caps);
+ PRINTK2 ("%s: phy advertised caps=%x\n", SMC_DEV_NAME, my_ad_caps);
/* Restart auto-negotiation process in order to advertise my caps */
smc_write_phy_register (PHY_CNTL_REG,
/* Wait for the auto-negotiation to complete. This may take from */
/* 2 to 3 seconds. */
/* Wait for the reset to complete, or time out */
- timeout = 20; /* Wait up to 10 seconds */
+ timeout = CONFIG_SMC_AUTONEG_TIMEOUT * 2;
while (timeout--) {
+
status = smc_read_phy_register (PHY_STAT_REG);
if (status & PHY_STAT_ANEG_ACK) {
/* auto-negotiate complete */
/* Restart auto-negotiation if remote fault */
if (status & PHY_STAT_REM_FLT) {
- printf ("%s:PHY remote fault detected\n",
+ printf ("%s: PHY remote fault detected\n",
SMC_DEV_NAME);
/* Restart auto-negotiation */
- printf ("%s:PHY restarting auto-negotiation\n",
+ printf ("%s: PHY restarting auto-negotiation\n",
SMC_DEV_NAME);
smc_write_phy_register (PHY_CNTL_REG,
PHY_CNTL_ANEG_EN |
}
if (timeout < 1) {
- printf ("%s:PHY auto-negotiate timed out\n", SMC_DEV_NAME);
- printf ("%s:PHY auto-negotiate timed out\n", SMC_DEV_NAME);
+ printf ("%s: PHY auto-negotiate timed out\n", SMC_DEV_NAME);
failed = 1;
}
/* Fail if we detected an auto-negotiate remote fault */
if (status & PHY_STAT_REM_FLT) {
- printf ("%s:PHY remote fault detected\n", SMC_DEV_NAME);
- printf ("%s:PHY remote fault detected\n", SMC_DEV_NAME);
+ printf ("%s: PHY remote fault detected\n", SMC_DEV_NAME);
failed = 1;
}
/* Re-Configure the Receive/Phy Control register */
SMC_outw (RPC_DEFAULT, RPC_REG);
- smc_phy_configure_exit:
+smc_phy_configure_exit: ;
}
#endif /* !CONFIG_SMC91111_EXT_PHY */
#if SMC_DEBUG > 2
static void print_packet( byte * buf, int length )
{
-#if 0
int i;
int remainder;
int lines;
}
printf("\n");
#endif
-#endif
}
#endif
int eth_init(bd_t *bd) {
+#ifdef SHARED_RESOURCES
+ swap_to(ETHERNET);
+#endif
return (smc_open(bd));
}
int smc_get_ethaddr (bd_t * bd)
{
int env_size, rom_valid, env_present = 0, reg;
- char *s = NULL, *e, *v_mac, es[] = "11:22:33:44:55:66";
- uchar s_env_mac[64], v_env_mac[6], v_rom_mac[6];
+ char *s = NULL, *e, es[] = "11:22:33:44:55:66";
+ char s_env_mac[64];
+ uchar v_env_mac[6], v_rom_mac[6], *v_mac;
env_size = getenv_r ("ethaddr", s_env_mac, sizeof (s_env_mac));
if ((env_size > 0) && (env_size < sizeof (es))) { /* exit if env is bad */
s = s_env_mac;
}
- for (reg = 0; reg < 6; ++reg) { /* turn string into mac value */
+ 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;
v_mac = v_env_mac; /* always use a good env over a ROM */
}
- if (env_present && rom_valid) { /* if both env and ROM are good */
+ 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: "
}
}
memcpy (bd->bi_enetaddr, v_mac, 6); /* update global address to match env (allows env changing) */
- smc_set_mac_addr (v_mac); /* use old function to update smc default */
+ smc_set_mac_addr ((uchar *)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);
}
-int get_rom_mac (char *v_rom_mac)
+int get_rom_mac (uchar *v_rom_mac)
{
- int is_rom_present = 0;
-
#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
- if (is_rom_present) {
- /* if eeprom contents are valid
- * extract mac address into hw_mac_addr, 8 or 16 bit accesses
- * memcpy (v_rom_mac, hc_mac_addr, 6);
- * return(1);
- */
+ int i;
+ int valid_mac = 0;
+
+ SMC_SELECT_BANK (1);
+ for (i=0; i<6; i++)
+ {
+ v_rom_mac[i] = SMC_inb ((ADDR0_REG + i));
+ valid_mac |= v_rom_mac[i];
}
- memset (v_rom_mac, 0, 6);
- return (0);
+
+ return (valid_mac ? 1 : 0);
#endif
}
#endif /* CONFIG_DRIVER_SMC91111 */
projects / karo-tx-uboot.git / blobdiff