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u-boot 1.1.4
2024-01-07 23:57:24 +01:00
/**************************************************************************
Etherboot - BOOTP/TFTP Bootstrap Program
Skeleton NIC driver for Etherboot
***************************************************************************/
/*
* 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, or (at
* your option) any later version.
*/
/*
* This file is a modified version from the Galileo polled mode
* network driver for the ethernet contained within the GT64260
* chip. It has been modified to fit into the U-Boot framework, from
* the original (etherboot) setup. Also, additional cleanup and features
* were added.
*
* - Josh Huber <huber@mclx.com>
*/
#include <common.h>
#include <malloc.h>
#include <galileo/gt64260R.h>
#include <galileo/core.h>
#include <asm/cache.h>
#include <miiphy.h>
#include <net.h>
#include "eth.h"
#include "eth_addrtbl.h"
#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
#define GT6426x_ETH_BUF_SIZE 1536
/* if you like verbose output, turn this on! */
#undef DEBUG
/* Restart autoneg if we detect link is up on phy init. */
/*
* The GT doc's say that after Rst is deasserted, and the PHY
* reports autoneg complete, it runs through its autoneg
* procedures. This doesn't seem to be the case for MII
* PHY's. To work around this check for link up && autoneg
* complete when initilizing the port. If they are both set,
* then restart PHY autoneg. Of course, it may be something
* completly different.
*/
#ifdef CONFIG_ETHER_PORT_MII
# define RESTART_AUTONEG
#endif
/* do this if you dont want to use snooping */
#define USE_SOFTWARE_CACHE_MANAGEMENT
#ifdef USE_SOFTWARE_CACHE_MANAGEMENT
#define FLUSH_DCACHE(a,b) if(dcache_status()){clean_dcache_range((u32)(a),(u32)(b));}
#define FLUSH_AND_INVALIDATE_DCACHE(a,b) if(dcache_status()){flush_dcache_range((u32)(a),(u32)(b));}
#define INVALIDATE_DCACHE(a,b) if(dcache_status()){invalidate_dcache_range((u32)(a),(u32)(b));}
#else
/* bummer - w/o flush, nothing works, even with snooping - FIXME */
/* #define FLUSH_DCACHE(a,b) */
#define FLUSH_DCACHE(a,b) if(dcache_status()){clean_dcache_range((u32)(a),(u32)(b));}
#define FLUSH_AND_INVALIDATE_DCACHE(a,b)
#define INVALIDATE_DCACHE(a,b)
#endif
struct eth_dev_s {
eth0_tx_desc_single *eth_tx_desc;
eth0_rx_desc_single *eth_rx_desc;
char *eth_tx_buffer;
char *eth_rx_buffer[NR];
int tdn, rdn;
int dev;
unsigned int reg_base;
};
#ifdef CONFIG_INTEL_LXT97X
/* for intel LXT972 */
static const char ether_port_phy_addr[3]={0,1,2};
#else
static const char ether_port_phy_addr[3]={4,5,6};
#endif
/* MII PHY access routines are common for all i/f, use gal_ent0 */
#define GT6426x_MII_DEVNAME "gal_enet0"
int gt6426x_miiphy_read(char *devname, unsigned char phy,
unsigned char reg, unsigned short *val);
static inline unsigned short
miiphy_read_ret(unsigned short phy, unsigned short reg)
{
unsigned short val;
gt6426x_miiphy_read(GT6426x_MII_DEVNAME,phy,reg,&val);
return val;
}
/**************************************************************************
RESET - Reset adapter
***************************************************************************/
void
gt6426x_eth_reset(void *v)
{
/* we should do something here...
struct eth_device *wp = (struct eth_device *)v;
struct eth_dev_s *p = wp->priv;
*/
printf ("RESET\n");
/* put the card in its initial state */
}
static void gt6426x_handle_SMI(struct eth_dev_s *p, unsigned int icr)
{
#ifdef DEBUG
printf("SMI interrupt: ");
if(icr&0x20000000) {
printf("SMI done\n");
}
#endif
if(icr&0x10000000) {
unsigned int psr;
psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + p->reg_base);
#ifdef DEBUG
printf("PHY state change:\n"
" GT:%s:%s:%s:%s\n",
psr&1?"100":" 10",
psr&8?" Link":"nLink",
psr&2?"FD":"HD",
psr&4?" FC":"nFC");
#ifdef CONFIG_INTEL_LXT97X /* non-standard mii reg (intel lxt972a) */
{
unsigned short mii_11;
mii_11=miiphy_read_ret(ether_port_phy_addr[p->dev],0x11);
printf(" mii:%s:%s:%s:%s %s:%s %s\n",
mii_11&(1<<14)?"100":" 10",
mii_11&(1<<10)?" Link":"nLink",
mii_11&(1<<9)?"FD":"HD",
mii_11&(1<<4)?" FC":"nFC",
mii_11&(1<<7)?"ANc":"ANnc",
mii_11&(1<<8)?"AN":"Manual",
""
);
}
#endif /* CONFIG_INTEL_LXT97X */
#endif /* DEBUG */
}
}
static int
gt6426x_eth_receive(struct eth_dev_s *p,unsigned int icr)
{
int eth_len=0;
char *eth_data;
eth0_rx_desc_single *rx=&p->eth_rx_desc[(p->rdn)];
INVALIDATE_DCACHE((unsigned int)rx,(unsigned int)(rx+1));
if (rx->command_status & 0x80000000) {
return 0; /* No packet received */
}
eth_len = (unsigned int)
(rx->buff_size_byte_count) & 0x0000ffff;
eth_data = (char *) p->eth_rx_buffer[p->rdn];
#ifdef DEBUG
if (eth_len) {
printf ("%s: Recived %d byte Packet @ 0x%p\n",
__FUNCTION__, eth_len, eth_data);
}
#endif
/*
* packet is now in:
* eth0_rx_buffer[RDN_ETH0];
*/
/* let the upper layer handle the packet */
NetReceive ((uchar *)eth_data, eth_len);
rx->buff_size_byte_count = GT6426x_ETH_BUF_SIZE<<16;
/* GT96100 Owner */
rx->command_status = 0x80000000;
FLUSH_DCACHE((unsigned int)rx,(unsigned int)(rx+1));
p->rdn ++;
if (p->rdn == NR) {p->rdn = 0;}
sync();
/* Start Rx*/
GT_REG_WRITE (ETHERNET0_SDMA_COMMAND_REGISTER + p->reg_base, 0x00000080);
#ifdef DEBUG
{
int i;
for (i=0;i<12;i++) {
printf(" %02x", eth_data[i]);
}
}
printf(": %d bytes\n", eth_len);
#endif
INVALIDATE_DCACHE((unsigned int)eth_data,
(unsigned int)eth_data+eth_len);
return eth_len;
}
/**************************************************************************
POLL - look for an rx frame, handle other conditions
***************************************************************************/
int
gt6426x_eth_poll(void *v)
{
struct eth_device *wp = (struct eth_device *)v;
struct eth_dev_s *p = wp->priv;
unsigned int icr=GTREGREAD(ETHERNET0_INTERRUPT_CAUSE_REGISTER + p->reg_base);
if(icr) {
GT_REG_WRITE(ETHERNET0_INTERRUPT_CAUSE_REGISTER +p->reg_base, 0);
#ifdef DEBUG
printf("poll got ICR %08x\n", icr);
#endif
/* SMI done or PHY state change*/
if(icr&0x30000000) gt6426x_handle_SMI(p, icr);
}
/* always process. We aren't using RX interrupts */
return gt6426x_eth_receive(p, icr);
}
/**************************************************************************
TRANSMIT - Transmit a frame
***************************************************************************/
int
gt6426x_eth_transmit(void *v, volatile char *p, unsigned int s)
{
struct eth_device *wp = (struct eth_device *)v;
struct eth_dev_s *dev = (struct eth_dev_s *)wp->priv;
#ifdef DEBUG
unsigned int old_command_stat,old_psr;
#endif
eth0_tx_desc_single *tx=&dev->eth_tx_desc[dev->tdn];
/* wait for tx to be ready */
INVALIDATE_DCACHE((unsigned int)tx,(unsigned int)(tx+1));
while (tx->command_status & 0x80000000) {
int i;
for(i=0;i<1000;i++);
INVALIDATE_DCACHE((unsigned int)tx,(unsigned int)(tx+1));
}
GT_REG_WRITE (ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 + dev->reg_base,
(unsigned int)tx);
#ifdef DEBUG
printf("copying to tx_buffer [%p], length %x, desc = %p\n",
dev->eth_tx_buffer, s, dev->eth_tx_desc);
#endif
memcpy(dev->eth_tx_buffer, (char *) p, s);
tx->buff_pointer = (uchar *)dev->eth_tx_buffer;
tx->bytecount_reserved = ((__u16)s) << 16;
/* 31 - own
* 22 - gencrc
* 18:16 - pad, last, first */
tx->command_status = (1<<31) | (1<<22) | (7<<16);
#if 0
/* FEr #18 */
tx->next_desc = NULL;
#else
tx->next_desc =
(struct eth0_tx_desc_struct *)
&dev->eth_tx_desc[(dev->tdn+1)%NT].bytecount_reserved;
/* cpu owned */
dev->eth_tx_desc[(dev->tdn+1)%NT].command_status = (7<<16); /* pad, last, first */
#endif
#ifdef DEBUG
old_command_stat=tx->command_status,
old_psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + dev->reg_base);
#endif
FLUSH_DCACHE((unsigned int)tx,
(unsigned int)&dev->eth_tx_desc[(dev->tdn+2)%NT]);
FLUSH_DCACHE((unsigned int)dev->eth_tx_buffer,(unsigned int)dev->eth_tx_buffer+s);
GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + dev->reg_base, 0x01000000);
#ifdef DEBUG
{
unsigned int command_stat=0;
printf("cmd_stat: %08x PSR: %08x\n", old_command_stat, old_psr);
/* wait for tx to be ready */
do {
unsigned int psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + dev->reg_base);
command_stat=tx->command_status;
if(command_stat!=old_command_stat || psr !=old_psr) {
printf("cmd_stat: %08x PSR: %08x\n", command_stat, psr);
old_command_stat = command_stat;
old_psr = psr;
}
/* gt6426x_eth0_poll(); */
} while (command_stat & 0x80000000);
printf("sent %d byte frame\n", s);
if((command_stat & (3<<15)) == 3) {
printf("frame had error (stat=%08x)\n", command_stat);
}
}
#endif
return 0;
}
/**************************************************************************
DISABLE - Turn off ethernet interface
***************************************************************************/
void
gt6426x_eth_disable(void *v)
{
struct eth_device *wp = (struct eth_device *)v;
struct eth_dev_s *p = (struct eth_dev_s *)wp->priv;
GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + p->reg_base, 0x80008000);
}
/**************************************************************************
MII utilities - write: write to an MII register via SMI
***************************************************************************/
int
gt6426x_miiphy_write(char *devname, unsigned char phy,
unsigned char reg, unsigned short data)
{
unsigned int temp= (reg<<21) | (phy<<16) | data;
while(GTREGREAD(ETHERNET_SMI_REGISTER) & (1<<28)); /* wait for !Busy */
GT_REG_WRITE(ETHERNET_SMI_REGISTER, temp);
return 0;
}
/**************************************************************************
MII utilities - read: read from an MII register via SMI
***************************************************************************/
int
gt6426x_miiphy_read(char *devname, unsigned char phy,
unsigned char reg, unsigned short *val)
{
unsigned int temp= (reg<<21) | (phy<<16) | 1<<26;
while(GTREGREAD(ETHERNET_SMI_REGISTER) & (1<<28)); /* wait for !Busy */
GT_REG_WRITE(ETHERNET_SMI_REGISTER, temp);
while(1) {
temp=GTREGREAD(ETHERNET_SMI_REGISTER);
if(temp & (1<<27)) break; /* wait for ReadValid */
}
*val = temp & 0xffff;
return 0;
}
#ifdef DEBUG
/**************************************************************************
MII utilities - dump mii registers
***************************************************************************/
static void
gt6426x_dump_mii(bd_t *bis, unsigned short phy)
{
printf("mii reg 0 - 3: %04x %04x %04x %04x\n",
miiphy_read_ret(phy, 0x0),
miiphy_read_ret(phy, 0x1),
miiphy_read_ret(phy, 0x2),
miiphy_read_ret(phy, 0x3)
);
printf(" 4 - 7: %04x %04x %04x %04x\n",
miiphy_read_ret(phy, 0x4),
miiphy_read_ret(phy, 0x5),
miiphy_read_ret(phy, 0x6),
miiphy_read_ret(phy, 0x7)
);
printf(" 8: %04x\n",
miiphy_read_ret(phy, 0x8)
);
printf(" 16-19: %04x %04x %04x %04x\n",
miiphy_read_ret(phy, 0x10),
miiphy_read_ret(phy, 0x11),
miiphy_read_ret(phy, 0x12),
miiphy_read_ret(phy, 0x13)
);
printf(" 20,30: %04x %04x\n",
miiphy_read_ret(phy, 20),
miiphy_read_ret(phy, 30)
);
}
#endif
#ifdef RESTART_AUTONEG
/* If link is up && autoneg compleate, and if
* GT and PHY disagree about link capabilitys,
* restart autoneg - something screwy with FD/HD
* unless we do this. */
static void
check_phy_state(struct eth_dev_s *p)
{
int bmsr = miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_BMSR);
int psr = GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + p->reg_base);
if ((psr & 1<<3) && (bmsr & PHY_BMSR_LS)) {
int nego = miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_ANAR) &
miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_ANLPAR);
int want;
if (nego & PHY_ANLPAR_TXFD) {
want = 0x3;
printf("MII: 100Base-TX, Full Duplex\n");
} else if (nego & PHY_ANLPAR_TX) {
want = 0x1;
printf("MII: 100Base-TX, Half Duplex\n");
} else if (nego & PHY_ANLPAR_10FD) {
want = 0x2;
printf("MII: 10Base-T, Full Duplex\n");
} else if (nego & PHY_ANLPAR_10) {
want = 0x0;
printf("MII: 10Base-T, Half Duplex\n");
} else {
printf("MII: Unknown link-foo! %x\n", nego);
return;
}
if ((psr & 0x3) != want) {
printf("MII: GT thinks %x, PHY thinks %x, restarting autoneg..\n",
psr & 0x3, want);
miiphy_write(GT6426x_MII_DEVNAME,ether_port_phy_addr[p->dev],0,
miiphy_read_ret(ether_port_phy_addr[p->dev],0) | (1<<9));
udelay(10000); /* the EVB's GT takes a while to notice phy
went down and up */
}
}
}
#endif
/**************************************************************************
PROBE - Look for an adapter, this routine's visible to the outside
***************************************************************************/
int
gt6426x_eth_probe(void *v, bd_t *bis)
{
struct eth_device *wp = (struct eth_device *)v;
struct eth_dev_s *p = (struct eth_dev_s *)wp->priv;
int dev = p->dev;
unsigned int reg_base = p->reg_base;
unsigned long temp;
int i;
if (( dev < 0 ) || ( dev >= GAL_ETH_DEVS ))
{ /* This should never happen */
printf("%s: Invalid device %d\n", __FUNCTION__, dev );
return 0;
}
#ifdef DEBUG
printf ("%s: initializing %s\n", __FUNCTION__, wp->name );
printf ("\nCOMM_CONTROL = %08x , COMM_CONF = %08x\n",
GTREGREAD(COMM_UNIT_ARBITER_CONTROL),
GTREGREAD(COMM_UNIT_ARBITER_CONFIGURATION_REGISTER));
#endif
/* clear MIB counters */
for(i=0;i<255; i++)
temp=GTREGREAD(ETHERNET0_MIB_COUNTER_BASE + reg_base +i);
#ifdef CONFIG_INTEL_LXT97X
/* for intel LXT972 */
/* led 1: 0x1=txact
led 2: 0xc=link/rxact
led 3: 0x2=rxact (N/C)
strch: 0,2=30 ms, enable */
miiphy_write(GT6426x_MII_DEVNAME,ether_port_phy_addr[p->dev], 20, 0x1c22);
/* 2.7ns port rise time */
/*miiphy_write(ether_port_phy_addr[p->dev], 30, 0x0<<10); */
#else
/* already set up in mpsc.c */
/*GT_REG_WRITE(MAIN_ROUTING_REGISTER, 0x7ffe38); / b400 */
/* already set up in sdram_init.S... */
/* MPSC0, MPSC1, RMII */
/*GT_REG_WRITE(SERIAL_PORT_MULTIPLEX, 0x1102); / f010 */
#endif
GT_REG_WRITE(ETHERNET_PHY_ADDRESS_REGISTER,
ether_port_phy_addr[0] |
(ether_port_phy_addr[1]<<5) |
(ether_port_phy_addr[2]<<10)); /* 2000 */
/* 13:12 - 10: 4x64bit burst (cache line size = 32 bytes)
* 9 - 1: RIFB - interrupt on frame boundaries only
* 6:7 - 00: big endian rx and tx
* 5:2 - 1111: 15 retries */
GT_REG_WRITE(ETHERNET0_SDMA_CONFIGURATION_REGISTER + reg_base,
(2<<12) | (1<<9) | (0xf<<2) ); /* 2440 */
#ifndef USE_SOFTWARE_CACHE_MANAGEMENT
/* enable rx/tx desc/buffer cache snoop */
GT_REG_READ(ETHERNET_0_ADDRESS_CONTROL_LOW + dev*0x20,
&temp); /* f200 */
temp|= (1<<6)| (1<<14)| (1<<22)| (1<<30);
GT_REG_WRITE(ETHERNET_0_ADDRESS_CONTROL_LOW + dev*0x20,
temp);
#endif
/* 31 28 27 24 23 20 19 16
* 0000 0000 0000 0000 [0004]
* 15 12 11 8 7 4 3 0
* 1000 1101 0000 0000 [4d00]
* 20 - 0=MII 1=RMII
* 19 - 0=speed autoneg
* 15:14 - framesize 1536 (GT6426x_ETH_BUF_SIZE)
* 11 - no force link pass
* 10 - 1=disable fctl autoneg
* 8 - override prio ?? */
temp = 0x00004d00;
#ifndef CONFIG_ETHER_PORT_MII
temp |= (1<<20); /* RMII */
#endif
/* set En */
GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER + reg_base,
temp); /* 2408 */
/* hardcode E1 also? */
/* -- according to dox, this is safer due to extra pulldowns? */
if (dev<2) {
GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER + (dev+1) * 0x400,
temp); /* 2408 */
}
/* wake up MAC */ /* 2400 */
GT_REG_READ(ETHERNET0_PORT_CONFIGURATION_REGISTER + reg_base, &temp);
temp |= (1<<7); /* enable port */
#ifdef CONFIG_GT_USE_MAC_HASH_TABLE
temp |= (1<<12); /* hash size 1/2k */
#else
temp |= 1; /* promisc */
#endif
GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_REGISTER + reg_base, temp);
/* 2400 */
#ifdef RESTART_AUTONEG
check_phy_state(p);
#endif
printf("%s: Waiting for link up..\n", wp->name);
temp = 10 * 1000;
/* wait for link back up */
while(!(GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + reg_base) & 8)
&& (--temp > 0)){
udelay(1000); /* wait 1 ms */
}
if ( temp == 0) {
printf("%s: Failed!\n", wp->name);
return (0);
}
printf("%s: OK!\n", wp->name);
p->tdn = 0;
p->rdn = 0;
p->eth_tx_desc[p->tdn].command_status = 0;
/* Initialize Rx Side */
for (temp = 0; temp < NR; temp++) {
p->eth_rx_desc[temp].buff_pointer = (uchar *)p->eth_rx_buffer[temp];
p->eth_rx_desc[temp].buff_size_byte_count = GT6426x_ETH_BUF_SIZE<<16;
/* GT96100 Owner */
p->eth_rx_desc[temp].command_status = 0x80000000;
p->eth_rx_desc[temp].next_desc =
(struct eth0_rx_desc_struct *)
&p->eth_rx_desc[(temp+1)%NR].buff_size_byte_count;
}
FLUSH_DCACHE((unsigned int)&p->eth_tx_desc[0],
(unsigned int)&p->eth_tx_desc[NR]);
FLUSH_DCACHE((unsigned int)&p->eth_rx_desc[0],
(unsigned int)&p->eth_rx_desc[NR]);
GT_REG_WRITE(ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 + reg_base,
(unsigned int) p->eth_tx_desc);
GT_REG_WRITE(ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 + reg_base,
(unsigned int) p->eth_rx_desc);
GT_REG_WRITE(ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 + reg_base,
(unsigned int) p->eth_rx_desc);
#ifdef DEBUG
printf ("\nRx descriptor pointer is %08x %08x\n",
GTREGREAD(ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 + reg_base),
GTREGREAD(ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 + reg_base));
printf ("\n\n%08x %08x\n",
(unsigned int)p->eth_rx_desc,p->eth_rx_desc[0].command_status);
printf ("Descriptor dump:\n");
printf ("cmd status: %08x\n",p->eth_rx_desc[0].command_status);
printf ("byte_count: %08x\n",p->eth_rx_desc[0].buff_size_byte_count);
printf ("buff_ptr: %08x\n",(unsigned int)p->eth_rx_desc[0].buff_pointer);
printf ("next_desc: %08x\n\n",(unsigned int)p->eth_rx_desc[0].next_desc);
printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x0));
printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x4));
printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x8));
printf ("%08x\n\n",
*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0xc));
#endif
#ifdef DEBUG
gt6426x_dump_mii(bis,ether_port_phy_addr[p->dev]);
#endif
#ifdef CONFIG_GT_USE_MAC_HASH_TABLE
{
unsigned int hashtable_base;
u8 *b = (u8 *)(wp->enetaddr);
u32 macH, macL;
/* twist the MAC up into the way the discovery wants it */
macH= (b[0]<<8) | b[1];
macL= (b[2]<<24) | (b[3]<<16) | (b[4]<<8) | b[5];
/* mode 0, size 0x800 */
hashtable_base =initAddressTable(dev,0,1);
if(!hashtable_base) {
printf("initAddressTable failed\n");
return 0;
}
addAddressTableEntry(dev, macH, macL, 1, 0);
GT_REG_WRITE(ETHERNET0_HASH_TABLE_POINTER_REGISTER + reg_base,
hashtable_base);
}
#endif
/* Start Rx*/
GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + reg_base, 0x00000080);
printf("%s: gt6426x eth device %d init success \n", wp->name, dev );
return 1;
}
/* enter all the galileo ethernet devs into MULTI-BOOT */
void
gt6426x_eth_initialize(bd_t *bis)
{
struct eth_device *dev;
struct eth_dev_s *p;
int devnum, x, temp;
char *s, *e, buf[64];
#ifdef DEBUG
printf( "\n%s\n", __FUNCTION );
#endif
for (devnum = 0; devnum < GAL_ETH_DEVS; devnum++) {
dev = calloc(sizeof(*dev), 1);
if (!dev) {
printf( "%s: gal_enet%d allocation failure, %s\n",
__FUNCTION__, devnum, "eth_device structure");
return;
}
/* must be less than NAMESIZE (16) */
sprintf(dev->name, "gal_enet%d", devnum);
#ifdef DEBUG
printf( "Initializing %s\n", dev->name );
#endif
/* Extract the MAC address from the environment */
switch (devnum)
{
case 0: s = "ethaddr"; break;
#if (GAL_ETH_DEVS > 1)
case 1: s = "eth1addr"; break;
#endif
#if (GAL_ETH_DEVS > 2)
case 2: s = "eth2addr"; break;
#endif
default: /* this should never happen */
printf( "%s: Invalid device number %d\n",
__FUNCTION__, devnum );
return;
}
temp = getenv_r (s, buf, sizeof(buf));
s = (temp > 0) ? buf : NULL;
#ifdef DEBUG
printf ("Setting MAC %d to %s\n", devnum, s );
#endif
for (x = 0; x < 6; ++x) {
dev->enetaddr[x] = s ? simple_strtoul(s, &e, 16) : 0;
if (s)
s = (*e) ? e+1 : e;
}
dev->init = (void*)gt6426x_eth_probe;
dev->halt = (void*)gt6426x_eth_reset;
dev->send = (void*)gt6426x_eth_transmit;
dev->recv = (void*)gt6426x_eth_poll;
p = calloc( sizeof(*p), 1 );
dev->priv = (void*)p;
if (!p)
{
printf( "%s: %s allocation failure, %s\n",
__FUNCTION__, dev->name, "Private Device Structure");
free(dev);
return;
}
p->dev = devnum;
p->tdn=0;
p->rdn=0;
p->reg_base = devnum * ETHERNET_PORTS_DIFFERENCE_OFFSETS;
p->eth_tx_desc =
(eth0_tx_desc_single *)
(((unsigned int) malloc(sizeof (eth0_tx_desc_single) *
(NT+1)) & 0xfffffff0) + 0x10);
if (!p)
{
printf( "%s: %s allocation failure, %s\n",
__FUNCTION__, dev->name, "Tx Descriptor");
free(dev);
return;
}
p->eth_rx_desc =
(eth0_rx_desc_single *)
(((unsigned int) malloc(sizeof (eth0_rx_desc_single) *
(NR+1)) & 0xfffffff0) + 0x10);
if (!p->eth_rx_desc)
{
printf( "%s: %s allocation failure, %s\n",
__FUNCTION__, dev->name, "Rx Descriptor");
free(dev);
free(p);
return;
}
p->eth_tx_buffer =
(char *) (((unsigned int) malloc(GT6426x_ETH_BUF_SIZE) & 0xfffffff0) + 0x10);
if (!p->eth_tx_buffer)
{
printf( "%s: %s allocation failure, %s\n",
__FUNCTION__, dev->name, "Tx Bufffer");
free(dev);
free(p);
free(p->eth_rx_desc);
return;
}
for (temp = 0 ; temp < NR ; temp ++) {
p->eth_rx_buffer[temp] =
(char *)
(((unsigned int) malloc(GT6426x_ETH_BUF_SIZE) & 0xfffffff0) + 0x10);
if (!p->eth_rx_buffer[temp])
{
printf( "%s: %s allocation failure, %s\n",
__FUNCTION__, dev->name, "Rx Buffers");
free(dev);
free(p);
free(p->eth_tx_buffer);
free(p->eth_rx_desc);
free(p->eth_tx_desc);
while (temp >= 0)
free(p->eth_rx_buffer[--temp]);
return;
}
}
eth_register(dev);
#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
miiphy_register(dev->name,
gt6426x_miiphy_read, gt6426x_miiphy_write);
#endif
}
}
#endif /* CFG_CMD_NET && CONFIG_NET_MULTI */
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