1221ce459d
Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content. (both just wrap <asm-generic/errno.h>)
Replace all include directives for <asm/errno.h> with <linux/errno.h>.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini <trini@konsulko.com>
440 lines
8.8 KiB
C
440 lines
8.8 KiB
C
/*
|
|
* (C) Copyright 2001-2015
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
* Joe Hershberger, National Instruments
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <environment.h>
|
|
#include <net.h>
|
|
#include <phy.h>
|
|
#include <linux/errno.h>
|
|
#include "eth_internal.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/*
|
|
* CPU and board-specific Ethernet initializations. Aliased function
|
|
* signals caller to move on
|
|
*/
|
|
static int __def_eth_init(bd_t *bis)
|
|
{
|
|
return -1;
|
|
}
|
|
int cpu_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
|
|
int board_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
|
|
|
|
#ifdef CONFIG_API
|
|
static struct {
|
|
uchar data[PKTSIZE];
|
|
int length;
|
|
} eth_rcv_bufs[PKTBUFSRX];
|
|
|
|
static unsigned int eth_rcv_current, eth_rcv_last;
|
|
#endif
|
|
|
|
static struct eth_device *eth_devices;
|
|
struct eth_device *eth_current;
|
|
|
|
void eth_set_current_to_next(void)
|
|
{
|
|
eth_current = eth_current->next;
|
|
}
|
|
|
|
void eth_set_dev(struct eth_device *dev)
|
|
{
|
|
eth_current = dev;
|
|
}
|
|
|
|
struct eth_device *eth_get_dev_by_name(const char *devname)
|
|
{
|
|
struct eth_device *dev, *target_dev;
|
|
|
|
BUG_ON(devname == NULL);
|
|
|
|
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;
|
|
}
|
|
|
|
struct eth_device *eth_get_dev_by_index(int index)
|
|
{
|
|
struct eth_device *dev, *target_dev;
|
|
|
|
if (!eth_devices)
|
|
return NULL;
|
|
|
|
dev = eth_devices;
|
|
target_dev = NULL;
|
|
do {
|
|
if (dev->index == index) {
|
|
target_dev = dev;
|
|
break;
|
|
}
|
|
dev = dev->next;
|
|
} while (dev != eth_devices);
|
|
|
|
return target_dev;
|
|
}
|
|
|
|
int eth_get_dev_index(void)
|
|
{
|
|
if (!eth_current)
|
|
return -1;
|
|
|
|
return eth_current->index;
|
|
}
|
|
|
|
static int on_ethaddr(const char *name, const char *value, enum env_op op,
|
|
int flags)
|
|
{
|
|
int index;
|
|
struct eth_device *dev;
|
|
|
|
if (!eth_devices)
|
|
return 0;
|
|
|
|
/* look for an index after "eth" */
|
|
index = simple_strtoul(name + 3, NULL, 10);
|
|
|
|
dev = eth_devices;
|
|
do {
|
|
if (dev->index == index) {
|
|
switch (op) {
|
|
case env_op_create:
|
|
case env_op_overwrite:
|
|
eth_parse_enetaddr(value, dev->enetaddr);
|
|
break;
|
|
case env_op_delete:
|
|
memset(dev->enetaddr, 0, 6);
|
|
}
|
|
}
|
|
dev = dev->next;
|
|
} while (dev != eth_devices);
|
|
|
|
return 0;
|
|
}
|
|
U_BOOT_ENV_CALLBACK(ethaddr, on_ethaddr);
|
|
|
|
int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
|
|
int eth_number)
|
|
{
|
|
unsigned char env_enetaddr[6];
|
|
int ret = 0;
|
|
|
|
eth_getenv_enetaddr_by_index(base_name, eth_number, env_enetaddr);
|
|
|
|
if (!is_zero_ethaddr(env_enetaddr)) {
|
|
if (!is_zero_ethaddr(dev->enetaddr) &&
|
|
memcmp(dev->enetaddr, env_enetaddr, 6)) {
|
|
printf("\nWarning: %s MAC addresses don't match:\n",
|
|
dev->name);
|
|
printf("Address in SROM is %pM\n",
|
|
dev->enetaddr);
|
|
printf("Address in environment is %pM\n",
|
|
env_enetaddr);
|
|
}
|
|
|
|
memcpy(dev->enetaddr, env_enetaddr, 6);
|
|
} else if (is_valid_ethaddr(dev->enetaddr)) {
|
|
eth_setenv_enetaddr_by_index(base_name, eth_number,
|
|
dev->enetaddr);
|
|
} else if (is_zero_ethaddr(dev->enetaddr)) {
|
|
#ifdef CONFIG_NET_RANDOM_ETHADDR
|
|
net_random_ethaddr(dev->enetaddr);
|
|
printf("\nWarning: %s (eth%d) using random MAC address - %pM\n",
|
|
dev->name, eth_number, dev->enetaddr);
|
|
#else
|
|
printf("\nError: %s address not set.\n",
|
|
dev->name);
|
|
return -EINVAL;
|
|
#endif
|
|
}
|
|
|
|
if (dev->write_hwaddr && !eth_mac_skip(eth_number)) {
|
|
if (!is_valid_ethaddr(dev->enetaddr)) {
|
|
printf("\nError: %s address %pM illegal value\n",
|
|
dev->name, dev->enetaddr);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = dev->write_hwaddr(dev);
|
|
if (ret)
|
|
printf("\nWarning: %s failed to set MAC address\n",
|
|
dev->name);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int eth_register(struct eth_device *dev)
|
|
{
|
|
struct eth_device *d;
|
|
static int index;
|
|
|
|
assert(strlen(dev->name) < sizeof(dev->name));
|
|
|
|
if (!eth_devices) {
|
|
eth_devices = dev;
|
|
eth_current = dev;
|
|
eth_current_changed();
|
|
} else {
|
|
for (d = eth_devices; d->next != eth_devices; d = d->next)
|
|
;
|
|
d->next = dev;
|
|
}
|
|
|
|
dev->state = ETH_STATE_INIT;
|
|
dev->next = eth_devices;
|
|
dev->index = index++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int eth_unregister(struct eth_device *dev)
|
|
{
|
|
struct eth_device *cur;
|
|
|
|
/* No device */
|
|
if (!eth_devices)
|
|
return -ENODEV;
|
|
|
|
for (cur = eth_devices; cur->next != eth_devices && cur->next != dev;
|
|
cur = cur->next)
|
|
;
|
|
|
|
/* Device not found */
|
|
if (cur->next != dev)
|
|
return -ENODEV;
|
|
|
|
cur->next = dev->next;
|
|
|
|
if (eth_devices == dev)
|
|
eth_devices = dev->next == eth_devices ? NULL : dev->next;
|
|
|
|
if (eth_current == dev) {
|
|
eth_current = eth_devices;
|
|
eth_current_changed();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int eth_initialize(void)
|
|
{
|
|
int num_devices = 0;
|
|
|
|
eth_devices = NULL;
|
|
eth_current = NULL;
|
|
eth_common_init();
|
|
/*
|
|
* If board-specific initialization exists, call it.
|
|
* If not, call a CPU-specific one
|
|
*/
|
|
if (board_eth_init != __def_eth_init) {
|
|
if (board_eth_init(gd->bd) < 0)
|
|
printf("Board Net Initialization Failed\n");
|
|
} else if (cpu_eth_init != __def_eth_init) {
|
|
if (cpu_eth_init(gd->bd) < 0)
|
|
printf("CPU Net Initialization Failed\n");
|
|
} else {
|
|
printf("Net Initialization Skipped\n");
|
|
}
|
|
|
|
if (!eth_devices) {
|
|
puts("No ethernet found.\n");
|
|
bootstage_error(BOOTSTAGE_ID_NET_ETH_START);
|
|
} else {
|
|
struct eth_device *dev = eth_devices;
|
|
char *ethprime = getenv("ethprime");
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT);
|
|
do {
|
|
if (dev->index)
|
|
puts(", ");
|
|
|
|
printf("%s", dev->name);
|
|
|
|
if (ethprime && strcmp(dev->name, ethprime) == 0) {
|
|
eth_current = dev;
|
|
puts(" [PRIME]");
|
|
}
|
|
|
|
if (strchr(dev->name, ' '))
|
|
puts("\nWarning: eth device name has a space!"
|
|
"\n");
|
|
|
|
eth_write_hwaddr(dev, "eth", dev->index);
|
|
|
|
dev = dev->next;
|
|
num_devices++;
|
|
} while (dev != eth_devices);
|
|
|
|
eth_current_changed();
|
|
putc('\n');
|
|
}
|
|
|
|
return num_devices;
|
|
}
|
|
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
/* Multicast.
|
|
* mcast_addr: multicast ipaddr from which multicast Mac is made
|
|
* join: 1=join, 0=leave.
|
|
*/
|
|
int eth_mcast_join(struct in_addr mcast_ip, int join)
|
|
{
|
|
u8 mcast_mac[6];
|
|
if (!eth_current || !eth_current->mcast)
|
|
return -1;
|
|
mcast_mac[5] = htonl(mcast_ip.s_addr) & 0xff;
|
|
mcast_mac[4] = (htonl(mcast_ip.s_addr)>>8) & 0xff;
|
|
mcast_mac[3] = (htonl(mcast_ip.s_addr)>>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
|
|
|
|
|
|
int eth_init(void)
|
|
{
|
|
struct eth_device *old_current;
|
|
|
|
if (!eth_current) {
|
|
puts("No ethernet found.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
old_current = eth_current;
|
|
do {
|
|
debug("Trying %s\n", eth_current->name);
|
|
|
|
if (eth_current->init(eth_current, gd->bd) >= 0) {
|
|
eth_current->state = ETH_STATE_ACTIVE;
|
|
|
|
return 0;
|
|
}
|
|
debug("FAIL\n");
|
|
|
|
eth_try_another(0);
|
|
} while (old_current != eth_current);
|
|
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
void eth_halt(void)
|
|
{
|
|
if (!eth_current)
|
|
return;
|
|
|
|
eth_current->halt(eth_current);
|
|
|
|
eth_current->state = ETH_STATE_PASSIVE;
|
|
}
|
|
|
|
int eth_is_active(struct eth_device *dev)
|
|
{
|
|
return dev && dev->state == ETH_STATE_ACTIVE;
|
|
}
|
|
|
|
int eth_send(void *packet, int length)
|
|
{
|
|
if (!eth_current)
|
|
return -ENODEV;
|
|
|
|
return eth_current->send(eth_current, packet, length);
|
|
}
|
|
|
|
int eth_rx(void)
|
|
{
|
|
if (!eth_current)
|
|
return -ENODEV;
|
|
|
|
return eth_current->recv(eth_current);
|
|
}
|
|
|
|
#ifdef CONFIG_API
|
|
static void eth_save_packet(void *packet, int length)
|
|
{
|
|
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(void *packet, int length)
|
|
{
|
|
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;
|
|
}
|
|
|
|
length = min(eth_rcv_bufs[eth_rcv_current].length, 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 */
|