Release 4.14 arch/mips/alchemy/common/prom.c

/*
 *
 * BRIEF MODULE DESCRIPTION
 *    PROM library initialisation code, supports YAMON and U-Boot.
 *
 * Copyright 2000-2001, 2006, 2008 MontaVista Software Inc.
 * Author: MontaVista Software, Inc. <source@mvista.com>
 *
 * This file was derived from Carsten Langgaard's
 * arch/mips/mips-boards/xx files.
 *
 * Carsten Langgaard, carstenl@mips.com
 * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
 *
 *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  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.,
 *  675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/init.h>
#include <linux/string.h>

#include <asm/bootinfo.h>


int prom_argc;

char **prom_argv;

char **prom_envp;



void __init prom_init_cmdline(void)
{
	int i;

	for (i = 1; i < prom_argc; i++) {
		strlcat(arcs_cmdline, prom_argv[i], COMMAND_LINE_SIZE);
		if (i < (prom_argc - 1))
			strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Yoichi Yuasa
28
49.12%
1
25.00%
Linus Torvalds
25
43.86%
1
25.00%
Pete Popov
3
5.26%
1
25.00%
Manuel Lauss
1
1.75%
1
25.00%
Total
57
100.00%
4
100.00%



char *prom_getenv(char *envname)
{
	/*
         * Return a pointer to the given environment variable.
         * YAMON uses "name", "value" pairs, while U-Boot uses "name=value".
         */

	char **env = prom_envp;
	int i = strlen(envname);
	int yamon = (*env && strchr(*env, '=') == NULL);

	while (*env) {
		if (yamon) {
			if (strcmp(envname, *env++) == 0)
				return *env;
		} else if (strncmp(envname, *env, i) == 0 && (*env)[i] == '=')
			return *env + i + 1;
		env++;
	}

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Domen Puncer
69
61.06%
1
25.00%
Linus Torvalds
42
37.17%
1
25.00%
Sergei Shtylyov
2
1.77%
2
50.00%
Total
113
100.00%
4
100.00%



static inline unsigned char str2hexnum(unsigned char c)
{
	if (c >= '0' && c <= '9')
		return c - '0';
	if (c >= 'a' && c <= 'f')
		return c - 'a' + 10;
	if (c >= 'A' && c <= 'F')
		return c - 'A' + 10;

	return 0; /* foo */
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
47
72.31%
1
33.33%
Ralf Bächle
17
26.15%
1
33.33%
Yoichi Yuasa
1
1.54%
1
33.33%
Total
65
100.00%
3
100.00%



static inline void str2eaddr(unsigned char *ea, unsigned char *str)
{
	int i;

	for (i = 0; i < 6; i++) {
		unsigned char num;

		if ((*str == '.') || (*str == ':'))
			str++;
		num  = str2hexnum(*str++) << 4;
		num |= str2hexnum(*str++);
		ea[i] = num;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ralf Bächle
82
96.47%
1
33.33%
Linus Torvalds
2
2.35%
1
33.33%
Yoichi Yuasa
1
1.18%
1
33.33%
Total
85
100.00%
3
100.00%



int __init prom_get_ethernet_addr(char *ethernet_addr)
{
	char *ethaddr_str;

	/* Check the environment variables first */
	ethaddr_str = prom_getenv("ethaddr");
	if (!ethaddr_str) {
		/* Check command line */
		ethaddr_str = strstr(arcs_cmdline, "ethaddr=");
		if (!ethaddr_str)
			return -1;

		ethaddr_str += strlen("ethaddr=");
	}

	str2eaddr(ethernet_addr, ethaddr_str);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ralf Bächle
37
56.92%
1
20.00%
Yoichi Yuasa
21
32.31%
2
40.00%
Linus Torvalds
6
9.23%
1
20.00%
Manuel Lauss
1
1.54%
1
20.00%
Total
65
100.00%
5
100.00%



void __init prom_free_prom_memory(void)
{
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
4
57.14%
1
33.33%
Atsushi Nemoto
2
28.57%
1
33.33%
Andrew Morton
1
14.29%
1
33.33%
Total
7
100.00%
3
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
146
35.18%
1
7.69%
Ralf Bächle
136
32.77%
1
7.69%
Domen Puncer
69
16.63%
1
7.69%
Yoichi Yuasa
53
12.77%
4
30.77%
Pete Popov
3
0.72%
1
7.69%
Sergei Shtylyov
3
0.72%
2
15.38%
Manuel Lauss
2
0.48%
1
7.69%
Atsushi Nemoto
2
0.48%
1
7.69%
Andrew Morton
1
0.24%
1
7.69%
Total
415
100.00%
13
100.00%
Directory: arch/mips/alchemy/common

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