![Linus Torvalds](/assets/img/avatar_default.png)
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!
142 lines
3.1 KiB
C
142 lines
3.1 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* Copyright (C) 2003, 2004 PMC-Sierra Inc.
|
|
* Author: Manish Lachwani (lachwani@pmc-sierra.com)
|
|
* Copyright (C) 2004 Ralf Baechle
|
|
*/
|
|
#include <linux/config.h>
|
|
#include <linux/init.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/smp.h>
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/reboot.h>
|
|
#include <asm/system.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/pmon.h>
|
|
|
|
#ifdef CONFIG_SMP
|
|
extern void prom_grab_secondary(void);
|
|
#else
|
|
#define prom_grab_secondary() do { } while (0)
|
|
#endif
|
|
|
|
#include "setup.h"
|
|
|
|
struct callvectors *debug_vectors;
|
|
|
|
extern unsigned long yosemite_base;
|
|
extern unsigned long cpu_clock;
|
|
|
|
const char *get_system_type(void)
|
|
{
|
|
return "PMC-Sierra Yosemite";
|
|
}
|
|
|
|
static void prom_cpu0_exit(void *arg)
|
|
{
|
|
void *nvram = (void *) YOSEMITE_RTC_BASE;
|
|
|
|
/* Ask the NVRAM/RTC/watchdog chip to assert reset in 1/16 second */
|
|
writeb(0x84, nvram + 0xff7);
|
|
|
|
/* wait for the watchdog to go off */
|
|
mdelay(100 + (1000 / 16));
|
|
|
|
/* if the watchdog fails for some reason, let people know */
|
|
printk(KERN_NOTICE "Watchdog reset failed\n");
|
|
}
|
|
|
|
/*
|
|
* Reset the NVRAM over the local bus
|
|
*/
|
|
static void prom_exit(void)
|
|
{
|
|
#ifdef CONFIG_SMP
|
|
if (smp_processor_id())
|
|
/* CPU 1 */
|
|
smp_call_function(prom_cpu0_exit, NULL, 1, 1);
|
|
#endif
|
|
prom_cpu0_exit(NULL);
|
|
}
|
|
|
|
/*
|
|
* Halt the system
|
|
*/
|
|
static void prom_halt(void)
|
|
{
|
|
printk(KERN_NOTICE "\n** You can safely turn off the power\n");
|
|
while (1)
|
|
__asm__(".set\tmips3\n\t" "wait\n\t" ".set\tmips0");
|
|
}
|
|
|
|
/*
|
|
* Init routine which accepts the variables from PMON
|
|
*/
|
|
void __init prom_init(void)
|
|
{
|
|
int argc = fw_arg0;
|
|
char **arg = (char **) fw_arg1;
|
|
char **env = (char **) fw_arg2;
|
|
struct callvectors *cv = (struct callvectors *) fw_arg3;
|
|
int i = 0;
|
|
|
|
/* Callbacks for halt, restart */
|
|
_machine_restart = (void (*)(char *)) prom_exit;
|
|
_machine_halt = prom_halt;
|
|
_machine_power_off = prom_halt;
|
|
|
|
debug_vectors = cv;
|
|
arcs_cmdline[0] = '\0';
|
|
|
|
/* Get the boot parameters */
|
|
for (i = 1; i < argc; i++) {
|
|
if (strlen(arcs_cmdline) + strlen(arg[i] + 1) >=
|
|
sizeof(arcs_cmdline))
|
|
break;
|
|
|
|
strcat(arcs_cmdline, arg[i]);
|
|
strcat(arcs_cmdline, " ");
|
|
}
|
|
|
|
#ifdef CONFIG_SERIAL_8250_CONSOLE
|
|
if ((strstr(arcs_cmdline, "console=ttyS")) == NULL)
|
|
strcat(arcs_cmdline, "console=ttyS0,115200");
|
|
#endif
|
|
|
|
while (*env) {
|
|
if (strncmp("ocd_base", *env, strlen("ocd_base")) == 0)
|
|
yosemite_base =
|
|
simple_strtol(*env + strlen("ocd_base="), NULL,
|
|
16);
|
|
|
|
if (strncmp("cpuclock", *env, strlen("cpuclock")) == 0)
|
|
cpu_clock =
|
|
simple_strtol(*env + strlen("cpuclock="), NULL,
|
|
10);
|
|
|
|
env++;
|
|
}
|
|
|
|
mips_machgroup = MACH_GROUP_TITAN;
|
|
mips_machtype = MACH_TITAN_YOSEMITE;
|
|
|
|
prom_grab_secondary();
|
|
}
|
|
|
|
void __init prom_free_prom_memory(void)
|
|
{
|
|
}
|
|
|
|
void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
|
|
{
|
|
}
|