mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-29 15:14:18 +08:00
6e5928f6df
Convert the existing uses of random_ether_addr to the new eth_random_addr. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David S. Miller <davem@davemloft.net>
91 lines
2.0 KiB
C
91 lines
2.0 KiB
C
/*
|
|
* Miscellaneous SoC-specific hooks.
|
|
*
|
|
* Copyright (C) 2011 Texas Instruments Incorporated
|
|
* Author: Mark Salter <msalter@redhat.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/soc.h>
|
|
|
|
struct soc_ops soc_ops;
|
|
|
|
int soc_get_exception(void)
|
|
{
|
|
if (!soc_ops.get_exception)
|
|
return -1;
|
|
return soc_ops.get_exception();
|
|
}
|
|
|
|
void soc_assert_event(unsigned int evt)
|
|
{
|
|
if (soc_ops.assert_event)
|
|
soc_ops.assert_event(evt);
|
|
}
|
|
|
|
static u8 cmdline_mac[6];
|
|
|
|
static int __init get_mac_addr_from_cmdline(char *str)
|
|
{
|
|
int count, i, val;
|
|
|
|
for (count = 0; count < 6 && *str; count++, str += 3) {
|
|
if (!isxdigit(str[0]) || !isxdigit(str[1]))
|
|
return 0;
|
|
if (str[2] != ((count < 5) ? ':' : '\0'))
|
|
return 0;
|
|
|
|
for (i = 0, val = 0; i < 2; i++) {
|
|
val = val << 4;
|
|
val |= isdigit(str[i]) ?
|
|
str[i] - '0' : toupper(str[i]) - 'A' + 10;
|
|
}
|
|
cmdline_mac[count] = val;
|
|
}
|
|
return 1;
|
|
}
|
|
__setup("emac_addr=", get_mac_addr_from_cmdline);
|
|
|
|
/*
|
|
* Setup the MAC address for SoC ethernet devices.
|
|
*
|
|
* Before calling this function, the ethernet driver will have
|
|
* initialized the addr with local-mac-address from the device
|
|
* tree (if found). Allow command line to override, but not
|
|
* the fused address.
|
|
*/
|
|
int soc_mac_addr(unsigned int index, u8 *addr)
|
|
{
|
|
int i, have_dt_mac = 0, have_cmdline_mac = 0, have_fuse_mac = 0;
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
if (cmdline_mac[i])
|
|
have_cmdline_mac = 1;
|
|
if (c6x_fuse_mac[i])
|
|
have_fuse_mac = 1;
|
|
if (addr[i])
|
|
have_dt_mac = 1;
|
|
}
|
|
|
|
/* cmdline overrides all */
|
|
if (have_cmdline_mac)
|
|
memcpy(addr, cmdline_mac, 6);
|
|
else if (!have_dt_mac) {
|
|
if (have_fuse_mac)
|
|
memcpy(addr, c6x_fuse_mac, 6);
|
|
else
|
|
eth_random_addr(addr);
|
|
}
|
|
|
|
/* adjust for specific EMAC device */
|
|
addr[5] += index * c6x_num_cores;
|
|
return 1;
|
|
}
|
|
EXPORT_SYMBOL_GPL(soc_mac_addr);
|