From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 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! --- arch/mips/pmc-sierra/yosemite/prom.c | 141 +++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 arch/mips/pmc-sierra/yosemite/prom.c (limited to 'arch/mips/pmc-sierra/yosemite/prom.c') diff --git a/arch/mips/pmc-sierra/yosemite/prom.c b/arch/mips/pmc-sierra/yosemite/prom.c new file mode 100644 index 00000000000..1fb3e697948 --- /dev/null +++ b/arch/mips/pmc-sierra/yosemite/prom.c @@ -0,0 +1,141 @@ +/* + * 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 +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#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) +{ +} -- cgit v1.2.3-70-g09d2