1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
174 lines
3.9 KiB
C
174 lines
3.9 KiB
C
/*
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* Copyright 2000 MontaVista Software Inc.
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* Author: MontaVista Software, Inc.
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* ppopov@mvista.com or source@mvista.com
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*
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* This file was derived from Carsten Langgaard's
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* arch/mips/mips-boards/generic/generic.c
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*
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* Carsten Langgaard, carstenl@mips.com
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* Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/sched.h>
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#include <linux/bootmem.h>
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <asm/addrspace.h>
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#include <asm/bootinfo.h>
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#include <asm/gt64120.h>
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/* Environment variable */
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typedef struct {
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char *name;
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char *val;
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} t_env_var;
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int prom_argc;
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char **prom_argv, **prom_envp;
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int init_debug = 0;
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char * __init prom_getcmdline(void)
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{
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return &(arcs_cmdline[0]);
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}
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unsigned long __init prom_free_prom_memory(void)
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{
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return 0;
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}
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void __init prom_init_cmdline(void)
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{
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char *cp;
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int actr;
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actr = 1; /* Always ignore argv[0] */
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cp = &(arcs_cmdline[0]);
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while(actr < prom_argc) {
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strcpy(cp, prom_argv[actr]);
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cp += strlen(prom_argv[actr]);
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*cp++ = ' ';
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actr++;
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}
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if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
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--cp;
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*cp = '\0';
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}
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char *prom_getenv(char *envname)
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{
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/*
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* Return a pointer to the given environment variable.
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*/
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t_env_var *env = (t_env_var *) prom_envp;
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int i;
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i = strlen(envname);
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while (env->name) {
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if (strncmp(envname, env->name, i) == 0) {
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return (env->val);
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}
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env++;
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}
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return (NULL);
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}
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static inline unsigned char str2hexnum(unsigned char c)
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{
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if (c >= '0' && c <= '9')
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return c - '0';
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if (c >= 'a' && c <= 'f')
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return c - 'a' + 10;
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return 0; /* foo */
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}
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static inline void str2eaddr(unsigned char *ea, unsigned char *str)
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{
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int i;
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for (i = 0; i < 6; i++) {
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unsigned char num;
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if ((*str == '.') || (*str == ':'))
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str++;
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num = str2hexnum(*str++) << 4;
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num |= (str2hexnum(*str++));
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ea[i] = num;
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}
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}
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int get_ethernet_addr(char *ethernet_addr)
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{
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char *ethaddr_str;
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ethaddr_str = prom_getenv("ethaddr");
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if (!ethaddr_str) {
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printk("ethaddr not set in boot prom\n");
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return -1;
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}
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str2eaddr(ethernet_addr, ethaddr_str);
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if (init_debug > 1) {
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int i;
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printk("get_ethernet_addr: ");
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for (i = 0; i < 5; i++)
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printk("%02x:",
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(unsigned char) *(ethernet_addr + i));
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printk("%02x\n", *(ethernet_addr + i));
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}
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return 0;
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}
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const char *get_system_type(void)
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{
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return "Galileo EV96100";
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}
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void __init prom_init(void)
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{
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volatile unsigned char *uart;
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char ppbuf[8];
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prom_argc = fw_arg0;
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prom_argv = (char **) fw_arg1;
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prom_envp = (char **) fw_arg2;
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mips_machgroup = MACH_GROUP_GALILEO;
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mips_machtype = MACH_EV96100;
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prom_init_cmdline();
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/* 32 MB upgradable */
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add_memory_region(0, 32 << 20, BOOT_MEM_RAM);
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}
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