2 * Miscellaneous SoC-specific hooks.
4 * Copyright (C) 2011 Texas Instruments Incorporated
5 * Author: Mark Salter <msalter@redhat.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 #include <linux/module.h>
12 #include <linux/ctype.h>
13 #include <linux/etherdevice.h>
14 #include <asm/setup.h>
17 struct soc_ops soc_ops;
19 int soc_get_exception(void)
21 if (!soc_ops.get_exception)
23 return soc_ops.get_exception();
26 void soc_assert_event(unsigned int evt)
28 if (soc_ops.assert_event)
29 soc_ops.assert_event(evt);
32 static u8 cmdline_mac[6];
34 static int __init get_mac_addr_from_cmdline(char *str)
38 for (count = 0; count < 6 && *str; count++, str += 3) {
39 if (!isxdigit(str[0]) || !isxdigit(str[1]))
41 if (str[2] != ((count < 5) ? ':' : '\0'))
44 for (i = 0, val = 0; i < 2; i++) {
46 val |= isdigit(str[i]) ?
47 str[i] - '0' : toupper(str[i]) - 'A' + 10;
49 cmdline_mac[count] = val;
53 __setup("emac_addr=", get_mac_addr_from_cmdline);
56 * Setup the MAC address for SoC ethernet devices.
58 * Before calling this function, the ethernet driver will have
59 * initialized the addr with local-mac-address from the device
60 * tree (if found). Allow command line to override, but not
63 int soc_mac_addr(unsigned int index, u8 *addr)
65 int i, have_dt_mac = 0, have_cmdline_mac = 0, have_fuse_mac = 0;
67 for (i = 0; i < 6; i++) {
76 /* cmdline overrides all */
78 memcpy(addr, cmdline_mac, 6);
79 else if (!have_dt_mac) {
81 memcpy(addr, c6x_fuse_mac, 6);
83 eth_random_addr(addr);
86 /* adjust for specific EMAC device */
87 addr[5] += index * c6x_num_cores;
90 EXPORT_SYMBOL_GPL(soc_mac_addr);