u-boot/net/eth.c

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/*
* (C) Copyright 2001-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*/
#include <common.h>
#include <command.h>
#include <net.h>
#include <miiphy.h>
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#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
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#ifdef CFG_GT_6426x
extern int gt6426x_eth_initialize(bd_t *bis);
#endif
extern int au1x00_enet_initialize(bd_t*);
extern int dc21x4x_initialize(bd_t*);
extern int e1000_initialize(bd_t*);
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extern int eepro100_initialize(bd_t*);
extern int eth_3com_initialize(bd_t*);
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extern int fec_initialize(bd_t*);
extern int inca_switch_initialize(bd_t*);
extern int mpc5xxx_fec_initialize(bd_t*);
extern int mpc512x_fec_initialize(bd_t*);
extern int mpc8220_fec_initialize(bd_t*);
extern int mv6436x_eth_initialize(bd_t *);
extern int mv6446x_eth_initialize(bd_t *);
extern int natsemi_initialize(bd_t*);
extern int ns8382x_initialize(bd_t*);
extern int pcnet_initialize(bd_t*);
extern int plb2800_eth_initialize(bd_t*);
extern int ppc_4xx_eth_initialize(bd_t *);
extern int rtl8139_initialize(bd_t*);
extern int rtl8169_initialize(bd_t*);
extern int scc_initialize(bd_t*);
extern int skge_initialize(bd_t*);
Tundra tsi108 on chip Ethernet controller support. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller?s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register businterface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <alexandreb@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
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extern int tsi108_eth_initialize(bd_t*);
extern int uli526x_initialize(bd_t *);
extern int tsec_initialize(bd_t*, int, char *);
extern int npe_initialize(bd_t *);
extern int uec_initialize(int);
extern int bfin_EMAC_initialize(bd_t *);
extern int atstk1000_eth_initialize(bd_t *);
extern int mcffec_initialize(bd_t*);
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#ifdef CONFIG_API
extern void (*push_packet)(volatile void *, int);
static struct {
uchar data[PKTSIZE];
int length;
} eth_rcv_bufs[PKTBUFSRX];
static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
#endif
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static struct eth_device *eth_devices, *eth_current;
struct eth_device *eth_get_dev(void)
{
return eth_current;
}
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struct eth_device *eth_get_dev_by_name(char *devname)
{
struct eth_device *dev, *target_dev;
if (!eth_devices)
return NULL;
dev = eth_devices;
target_dev = NULL;
do {
if (strcmp(devname, dev->name) == 0) {
target_dev = dev;
break;
}
dev = dev->next;
} while (dev != eth_devices);
return target_dev;
}
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int eth_get_dev_index (void)
{
struct eth_device *dev;
int num = 0;
if (!eth_devices) {
return (-1);
}
for (dev = eth_devices; dev; dev = dev->next) {
if (dev == eth_current)
break;
++num;
}
if (dev) {
return (num);
}
return (0);
}
int eth_register(struct eth_device* dev)
{
struct eth_device *d;
if (!eth_devices) {
eth_current = eth_devices = dev;
#ifdef CONFIG_NET_MULTI
/* update current ethernet name */
{
char *act = getenv("ethact");
if (act == NULL || strcmp(act, eth_current->name) != 0)
setenv("ethact", eth_current->name);
}
#endif
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} else {
for (d=eth_devices; d->next!=eth_devices; d=d->next);
d->next = dev;
}
dev->state = ETH_STATE_INIT;
dev->next = eth_devices;
return 0;
}
int eth_initialize(bd_t *bis)
{
char enetvar[32];
unsigned char env_enetaddr[6];
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int i, eth_number = 0;
char *tmp, *end;
eth_devices = NULL;
eth_current = NULL;
show_boot_progress (64);
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
miiphy_init();
#endif
#if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
mv6436x_eth_initialize(bis);
#endif
#if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)
mv6446x_eth_initialize(bis);
#endif
#if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
ppc_4xx_eth_initialize(bis);
#endif
#ifdef CONFIG_INCA_IP_SWITCH
inca_switch_initialize(bis);
#endif
#ifdef CONFIG_PLB2800_ETHER
plb2800_eth_initialize(bis);
#endif
#ifdef SCC_ENET
scc_initialize(bis);
#endif
#if defined(CONFIG_MPC5xxx_FEC)
mpc5xxx_fec_initialize(bis);
#endif
#if defined(CONFIG_MPC512x_FEC)
mpc512x_fec_initialize (bis);
#endif
#if defined(CONFIG_MPC8220_FEC)
mpc8220_fec_initialize(bis);
#endif
#if defined(CONFIG_SK98)
skge_initialize(bis);
#endif
#if defined(CONFIG_TSEC1)
tsec_initialize(bis, 0, CONFIG_TSEC1_NAME);
#endif
#if defined(CONFIG_TSEC2)
tsec_initialize(bis, 1, CONFIG_TSEC2_NAME);
#endif
#if defined(CONFIG_MPC85XX_FEC)
tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
#else
# if defined(CONFIG_TSEC3)
tsec_initialize(bis, 2, CONFIG_TSEC3_NAME);
# endif
# if defined(CONFIG_TSEC4)
tsec_initialize(bis, 3, CONFIG_TSEC4_NAME);
# endif
#endif
#if defined(CONFIG_UEC_ETH1)
uec_initialize(0);
#endif
#if defined(CONFIG_UEC_ETH2)
uec_initialize(1);
#endif
#if defined(CONFIG_UEC_ETH3)
uec_initialize(2);
#endif
#if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
fec_initialize(bis);
#endif
#if defined(CONFIG_AU1X00)
au1x00_enet_initialize(bis);
#endif
#if defined(CONFIG_IXP4XX_NPE)
npe_initialize(bis);
#endif
#ifdef CONFIG_E1000
e1000_initialize(bis);
#endif
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#ifdef CONFIG_EEPRO100
eepro100_initialize(bis);
#endif
#ifdef CONFIG_TULIP
dc21x4x_initialize(bis);
#endif
#ifdef CONFIG_3COM
eth_3com_initialize(bis);
#endif
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#ifdef CONFIG_PCNET
pcnet_initialize(bis);
#endif
#ifdef CFG_GT_6426x
gt6426x_eth_initialize(bis);
#endif
#ifdef CONFIG_NATSEMI
natsemi_initialize(bis);
#endif
#ifdef CONFIG_NS8382X
ns8382x_initialize(bis);
#endif
Tundra tsi108 on chip Ethernet controller support. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller?s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register businterface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <alexandreb@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
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#if defined(CONFIG_TSI108_ETH)
tsi108_eth_initialize(bis);
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#endif
#if defined(CONFIG_ULI526X)
uli526x_initialize(bis);
#endif
#if defined(CONFIG_RTL8139)
rtl8139_initialize(bis);
#endif
#if defined(CONFIG_RTL8169)
rtl8169_initialize(bis);
#endif
#if defined(CONFIG_BF537)
bfin_EMAC_initialize(bis);
#endif
#if defined(CONFIG_ATSTK1000)
atstk1000_eth_initialize(bis);
#endif
#if defined(CONFIG_MCFFEC)
mcffec_initialize(bis);
#endif
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if (!eth_devices) {
puts ("No ethernet found.\n");
show_boot_progress (-64);
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} else {
struct eth_device *dev = eth_devices;
char *ethprime = getenv ("ethprime");
show_boot_progress (65);
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do {
if (eth_number)
puts (", ");
printf("%s", dev->name);
if (ethprime && strcmp (dev->name, ethprime) == 0) {
eth_current = dev;
puts (" [PRIME]");
}
sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
tmp = getenv (enetvar);
for (i=0; i<6; i++) {
env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
if (tmp)
tmp = (*end) ? end+1 : end;
}
if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
memcmp(dev->enetaddr, env_enetaddr, 6))
{
printf ("\nWarning: %s MAC addresses don't match:\n",
dev->name);
printf ("Address in SROM is "
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"%02X:%02X:%02X:%02X:%02X:%02X\n",
dev->enetaddr[0], dev->enetaddr[1],
dev->enetaddr[2], dev->enetaddr[3],
dev->enetaddr[4], dev->enetaddr[5]);
printf ("Address in environment is "
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"%02X:%02X:%02X:%02X:%02X:%02X\n",
env_enetaddr[0], env_enetaddr[1],
env_enetaddr[2], env_enetaddr[3],
env_enetaddr[4], env_enetaddr[5]);
}
memcpy(dev->enetaddr, env_enetaddr, 6);
}
eth_number++;
dev = dev->next;
} while(dev != eth_devices);
#ifdef CONFIG_NET_MULTI
/* update current ethernet name */
if (eth_current) {
char *act = getenv("ethact");
if (act == NULL || strcmp(act, eth_current->name) != 0)
setenv("ethact", eth_current->name);
} else
setenv("ethact", NULL);
#endif
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putc ('\n');
}
return eth_number;
}
void eth_set_enetaddr(int num, char *addr) {
struct eth_device *dev;
unsigned char enetaddr[6];
char *end;
int i;
debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
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if (!eth_devices)
return;
for (i=0; i<6; i++) {
enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
if (addr)
addr = (*end) ? end+1 : end;
}
dev = eth_devices;
while(num-- > 0) {
dev = dev->next;
if (dev == eth_devices)
return;
}
debug ( "Setting new HW address on %s\n"
"New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
dev->name,
enetaddr[0], enetaddr[1],
enetaddr[2], enetaddr[3],
enetaddr[4], enetaddr[5]);
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memcpy(dev->enetaddr, enetaddr, 6);
}
#ifdef CONFIG_MCAST_TFTP
/* Multicast.
* mcast_addr: multicast ipaddr from which multicast Mac is made
* join: 1=join, 0=leave.
*/
int eth_mcast_join( IPaddr_t mcast_ip, u8 join)
{
u8 mcast_mac[6];
if (!eth_current || !eth_current->mcast)
return -1;
mcast_mac[5] = htonl(mcast_ip) & 0xff;
mcast_mac[4] = (htonl(mcast_ip)>>8) & 0xff;
mcast_mac[3] = (htonl(mcast_ip)>>16) & 0x7f;
mcast_mac[2] = 0x5e;
mcast_mac[1] = 0x0;
mcast_mac[0] = 0x1;
return eth_current->mcast(eth_current, mcast_mac, join);
}
/* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
* and this is the ethernet-crc method needed for TSEC -- and perhaps
* some other adapter -- hash tables
*/
#define CRCPOLY_LE 0xedb88320
u32 ether_crc (size_t len, unsigned char const *p)
{
int i;
u32 crc;
crc = ~0;
while (len--) {
crc ^= *p++;
for (i = 0; i < 8; i++)
crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
}
/* an reverse the bits, cuz of way they arrive -- last-first */
crc = (crc >> 16) | (crc << 16);
crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
return crc;
}
#endif
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int eth_init(bd_t *bis)
{
struct eth_device* old_current;
if (!eth_current)
return -1;
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old_current = eth_current;
do {
debug ("Trying %s\n", eth_current->name);
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if (eth_current->init(eth_current,bis) >= 0) {
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eth_current->state = ETH_STATE_ACTIVE;
return 0;
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}
debug ("FAIL\n");
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eth_try_another(0);
} while (old_current != eth_current);
return -1;
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}
void eth_halt(void)
{
if (!eth_current)
return;
eth_current->halt(eth_current);
eth_current->state = ETH_STATE_PASSIVE;
}
int eth_send(volatile void *packet, int length)
{
if (!eth_current)
return -1;
return eth_current->send(eth_current, packet, length);
}
int eth_rx(void)
{
if (!eth_current)
return -1;
return eth_current->recv(eth_current);
}
#ifdef CONFIG_API
static void eth_save_packet(volatile void *packet, int length)
{
volatile char *p = packet;
int i;
if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
return;
if (PKTSIZE < length)
return;
for (i = 0; i < length; i++)
eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
eth_rcv_bufs[eth_rcv_last].length = length;
eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
}
int eth_receive(volatile void *packet, int length)
{
volatile char *p = packet;
void *pp = push_packet;
int i;
if (eth_rcv_current == eth_rcv_last) {
push_packet = eth_save_packet;
eth_rx();
push_packet = pp;
if (eth_rcv_current == eth_rcv_last)
return -1;
}
if (length < eth_rcv_bufs[eth_rcv_current].length)
return -1;
length = eth_rcv_bufs[eth_rcv_current].length;
for (i = 0; i < length; i++)
p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
return length;
}
#endif /* CONFIG_API */
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void eth_try_another(int first_restart)
{
static struct eth_device *first_failed = NULL;
if (!eth_current)
return;
if (first_restart) {
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first_failed = eth_current;
}
eth_current = eth_current->next;
#ifdef CONFIG_NET_MULTI
/* update current ethernet name */
{
char *act = getenv("ethact");
if (act == NULL || strcmp(act, eth_current->name) != 0)
setenv("ethact", eth_current->name);
}
#endif
if (first_failed == eth_current) {
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NetRestartWrap = 1;
}
}
#ifdef CONFIG_NET_MULTI
void eth_set_current(void)
{
char *act;
struct eth_device* old_current;
if (!eth_current) /* XXX no current */
return;
act = getenv("ethact");
if (act != NULL) {
old_current = eth_current;
do {
if (strcmp(eth_current->name, act) == 0)
return;
eth_current = eth_current->next;
} while (old_current != eth_current);
}
setenv("ethact", eth_current->name);
}
#endif
char *eth_get_name (void)
{
return (eth_current ? eth_current->name : "unknown");
}
#elif defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_MULTI)
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extern int at91rm9200_miiphy_initialize(bd_t *bis);
extern int emac4xx_miiphy_initialize(bd_t *bis);
extern int mcf52x2_miiphy_initialize(bd_t *bis);
extern int ns7520_miiphy_initialize(bd_t *bis);
extern int dm644x_eth_miiphy_initialize(bd_t *bis);
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int eth_initialize(bd_t *bis)
{
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
miiphy_init();
#endif
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#if defined(CONFIG_AT91RM9200)
at91rm9200_miiphy_initialize(bis);
#endif
#if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
&& !defined(CONFIG_AP1000) && !defined(CONFIG_405)
emac4xx_miiphy_initialize(bis);
#endif
#if defined(CONFIG_MCF52x2)
mcf52x2_miiphy_initialize(bis);
#endif
#if defined(CONFIG_NETARM)
ns7520_miiphy_initialize(bis);
#endif
#if defined(CONFIG_DRIVER_TI_EMAC)
dm644x_eth_miiphy_initialize(bis);
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#endif
return 0;
}
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#endif