269 lines
6.8 KiB
C
269 lines
6.8 KiB
C
/*
|
|
* linux/arch/m68knommu/kernel/setup.c
|
|
*
|
|
* Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com)
|
|
* Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org>
|
|
* Copyleft ()) 2000 James D. Schettine {james@telos-systems.com}
|
|
* Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
|
|
* Copyright (C) 1995 Hamish Macdonald
|
|
* Copyright (C) 2000 Lineo Inc. (www.lineo.com)
|
|
* Copyright (C) 2001 Lineo, Inc. <www.lineo.com>
|
|
*
|
|
* 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca>
|
|
*/
|
|
|
|
/*
|
|
* This file handles the architecture-dependent parts of system setup
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/fb.h>
|
|
#include <linux/module.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/console.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/string.h>
|
|
#include <linux/bootmem.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <asm/setup.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/machdep.h>
|
|
#include <asm/pgtable.h>
|
|
|
|
unsigned long memory_start;
|
|
unsigned long memory_end;
|
|
|
|
EXPORT_SYMBOL(memory_start);
|
|
EXPORT_SYMBOL(memory_end);
|
|
|
|
char __initdata command_line[COMMAND_LINE_SIZE];
|
|
|
|
/* machine dependent timer functions */
|
|
void (*mach_gettod)(int*, int*, int*, int*, int*, int*);
|
|
int (*mach_set_clock_mmss)(unsigned long);
|
|
|
|
/* machine dependent reboot functions */
|
|
void (*mach_reset)(void);
|
|
void (*mach_halt)(void);
|
|
void (*mach_power_off)(void);
|
|
|
|
|
|
#ifdef CONFIG_M68000
|
|
#define CPU "MC68000"
|
|
#endif
|
|
#ifdef CONFIG_M68328
|
|
#define CPU "MC68328"
|
|
#endif
|
|
#ifdef CONFIG_M68EZ328
|
|
#define CPU "MC68EZ328"
|
|
#endif
|
|
#ifdef CONFIG_M68VZ328
|
|
#define CPU "MC68VZ328"
|
|
#endif
|
|
#ifdef CONFIG_M68360
|
|
#define CPU "MC68360"
|
|
#endif
|
|
#if defined(CONFIG_M5206)
|
|
#define CPU "COLDFIRE(m5206)"
|
|
#endif
|
|
#if defined(CONFIG_M5206e)
|
|
#define CPU "COLDFIRE(m5206e)"
|
|
#endif
|
|
#if defined(CONFIG_M520x)
|
|
#define CPU "COLDFIRE(m520x)"
|
|
#endif
|
|
#if defined(CONFIG_M523x)
|
|
#define CPU "COLDFIRE(m523x)"
|
|
#endif
|
|
#if defined(CONFIG_M5249)
|
|
#define CPU "COLDFIRE(m5249)"
|
|
#endif
|
|
#if defined(CONFIG_M5271)
|
|
#define CPU "COLDFIRE(m5270/5271)"
|
|
#endif
|
|
#if defined(CONFIG_M5272)
|
|
#define CPU "COLDFIRE(m5272)"
|
|
#endif
|
|
#if defined(CONFIG_M5275)
|
|
#define CPU "COLDFIRE(m5274/5275)"
|
|
#endif
|
|
#if defined(CONFIG_M528x)
|
|
#define CPU "COLDFIRE(m5280/5282)"
|
|
#endif
|
|
#if defined(CONFIG_M5307)
|
|
#define CPU "COLDFIRE(m5307)"
|
|
#endif
|
|
#if defined(CONFIG_M532x)
|
|
#define CPU "COLDFIRE(m532x)"
|
|
#endif
|
|
#if defined(CONFIG_M5407)
|
|
#define CPU "COLDFIRE(m5407)"
|
|
#endif
|
|
#ifndef CPU
|
|
#define CPU "UNKNOWN"
|
|
#endif
|
|
|
|
extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
|
|
extern int _ramstart, _ramend;
|
|
|
|
void __init setup_arch(char **cmdline_p)
|
|
{
|
|
int bootmap_size;
|
|
|
|
memory_start = PAGE_ALIGN(_ramstart);
|
|
memory_end = _ramend;
|
|
|
|
init_mm.start_code = (unsigned long) &_stext;
|
|
init_mm.end_code = (unsigned long) &_etext;
|
|
init_mm.end_data = (unsigned long) &_edata;
|
|
init_mm.brk = (unsigned long) 0;
|
|
|
|
config_BSP(&command_line[0], sizeof(command_line));
|
|
|
|
#if defined(CONFIG_BOOTPARAM)
|
|
strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line));
|
|
command_line[sizeof(command_line) - 1] = 0;
|
|
#endif
|
|
|
|
printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU "\n");
|
|
|
|
#ifdef CONFIG_UCDIMM
|
|
printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n");
|
|
#endif
|
|
#ifdef CONFIG_M68VZ328
|
|
printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
|
|
#endif
|
|
#ifdef CONFIG_COLDFIRE
|
|
printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
|
|
#ifdef CONFIG_M5307
|
|
printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
|
|
#endif
|
|
#ifdef CONFIG_ELITE
|
|
printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
|
|
#endif
|
|
#endif
|
|
printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
|
|
|
|
#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
|
|
printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n");
|
|
#endif
|
|
#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
|
|
printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
|
|
#endif
|
|
#if defined (CONFIG_M68360)
|
|
printk(KERN_INFO "QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n");
|
|
printk(KERN_INFO "based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n");
|
|
#endif
|
|
#ifdef CONFIG_DRAGEN2
|
|
printk(KERN_INFO "DragonEngine II board support by Georges Menie\n");
|
|
#endif
|
|
#ifdef CONFIG_M5235EVB
|
|
printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n");
|
|
#endif
|
|
|
|
pr_debug("KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x "
|
|
"BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext,
|
|
(int) &_sdata, (int) &_edata,
|
|
(int) &_sbss, (int) &_ebss);
|
|
pr_debug("MEMORY -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x\n ",
|
|
(int) &_ebss, (int) memory_start,
|
|
(int) memory_start, (int) memory_end);
|
|
|
|
/* Keep a copy of command line */
|
|
*cmdline_p = &command_line[0];
|
|
memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
|
|
boot_command_line[COMMAND_LINE_SIZE-1] = 0;
|
|
|
|
#ifdef DEBUG
|
|
if (strlen(*cmdline_p))
|
|
printk(KERN_DEBUG "Command line: '%s'\n", *cmdline_p);
|
|
#endif
|
|
|
|
#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
|
|
conswitchp = &dummy_con;
|
|
#endif
|
|
|
|
/*
|
|
* Give all the memory to the bootmap allocator, tell it to put the
|
|
* boot mem_map at the start of memory.
|
|
*/
|
|
bootmap_size = init_bootmem_node(
|
|
NODE_DATA(0),
|
|
memory_start >> PAGE_SHIFT, /* map goes here */
|
|
PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */
|
|
memory_end >> PAGE_SHIFT);
|
|
/*
|
|
* Free the usable memory, we have to make sure we do not free
|
|
* the bootmem bitmap so we then reserve it after freeing it :-)
|
|
*/
|
|
free_bootmem(memory_start, memory_end - memory_start);
|
|
reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
|
|
|
|
/*
|
|
* Get kmalloc into gear.
|
|
*/
|
|
paging_init();
|
|
}
|
|
|
|
/*
|
|
* Get CPU information for use by the procfs.
|
|
*/
|
|
static int show_cpuinfo(struct seq_file *m, void *v)
|
|
{
|
|
char *cpu, *mmu, *fpu;
|
|
u_long clockfreq;
|
|
|
|
cpu = CPU;
|
|
mmu = "none";
|
|
fpu = "none";
|
|
|
|
#ifdef CONFIG_COLDFIRE
|
|
clockfreq = (loops_per_jiffy * HZ) * 3;
|
|
#else
|
|
clockfreq = (loops_per_jiffy * HZ) * 16;
|
|
#endif
|
|
|
|
seq_printf(m, "CPU:\t\t%s\n"
|
|
"MMU:\t\t%s\n"
|
|
"FPU:\t\t%s\n"
|
|
"Clocking:\t%lu.%1luMHz\n"
|
|
"BogoMips:\t%lu.%02lu\n"
|
|
"Calibration:\t%lu loops\n",
|
|
cpu, mmu, fpu,
|
|
clockfreq / 1000000,
|
|
(clockfreq / 100000) % 10,
|
|
(loops_per_jiffy * HZ) / 500000,
|
|
((loops_per_jiffy * HZ) / 5000) % 100,
|
|
(loops_per_jiffy * HZ));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void *c_start(struct seq_file *m, loff_t *pos)
|
|
{
|
|
return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
|
|
}
|
|
|
|
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
|
|
{
|
|
++*pos;
|
|
return c_start(m, pos);
|
|
}
|
|
|
|
static void c_stop(struct seq_file *m, void *v)
|
|
{
|
|
}
|
|
|
|
const struct seq_operations cpuinfo_op = {
|
|
.start = c_start,
|
|
.next = c_next,
|
|
.stop = c_stop,
|
|
.show = show_cpuinfo,
|
|
};
|
|
|