/*
* linux/arch/m68k/kernel/setup.c
*
* Copyright (C) 1995 Hamish Macdonald
*/
/*
* This file handles the architecture-dependent parts of system setup
*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fs.h>
#include <linux/console.h>
#include <linux/genhd.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <asm/bootinfo.h>
#include <asm/irq.h>
#include <asm/machdep.h>
#include <asm/amigatypes.h>
#include <asm/amigahw.h>
#ifdef CONFIG_BLK_DEV_INITRD
#include <linux/blk.h>
#include <asm/pgtable.h>
#endif
struct bootinfo boot_info = {0,};
int bisize = sizeof boot_info;
int m68k_is040or060 = 0;
char m68k_debug_device[6] = "";
extern int end;
extern unsigned long availmem;
char saved_command_line[CL_SIZE];
/* setup some dummy routines */
static void dummy_waitbut(void)
{
}
void (*mach_sched_init) (isrfunc);
int (*mach_keyb_init) (void);
int (*mach_kbdrate) (struct kbd_repeat *) = NULL;
void (*mach_kbd_leds) (unsigned int) = NULL;
void (*mach_init_INTS) (void);
int (*mach_add_isr) (unsigned long, isrfunc, int, void *, char *);
int (*mach_remove_isr) (unsigned long, isrfunc, void *);
void (*mach_process_int) (int, struct pt_regs *) = NULL;
void (*mach_enable_irq) (unsigned) = NULL;
void (*mach_disable_irq) (unsigned) = NULL;
int (*mach_get_irq_list) (char *, int) = NULL;
unsigned long (*mach_gettimeoffset) (void);
void (*mach_gettod) (int*, int*, int*, int*, int*, int*);
int (*mach_hwclk) (int, struct hwclk_time*) = NULL;
int (*mach_set_clock_mmss) (unsigned long) = NULL;
void (*mach_mksound)( unsigned int count, unsigned int ticks );
void (*mach_reset)( void );
void (*waitbut)(void) = dummy_waitbut;
struct fb_info *(*mach_fb_init)(long *);
long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */
void (*mach_debug_init)(void);
void (*mach_video_setup) (char *, int *);
#ifdef CONFIG_BLK_DEV_FD
int (*mach_floppy_init) (void) = NULL;
void (*mach_floppy_setup) (char *, int *) = NULL;
void (*mach_floppy_eject) (void) = NULL;
#endif
extern void config_amiga(void);
extern void config_atari(void);
extern void config_mac(void);
extern void register_console(void (*proc)(const char *));
extern void ami_serial_print (const char *str);
extern void ata_serial_print (const char *str);
extern void (*kd_mksound)(unsigned int, unsigned int);
extern void amiga_get_model(char *model);
extern void atari_get_model(char *model);
extern void mac_get_model(char *model);
extern int amiga_get_hardware_list(char *buffer);
extern int atari_get_hardware_list(char *buffer);
extern int mac_get_hardware_list(char *buffer);
#define MASK_256K 0xfffc0000
void setup_arch(char **cmdline_p,
unsigned long * memory_start_p, unsigned long * memory_end_p)
{
unsigned long memory_start, memory_end;
extern int _etext, _edata, _end;
int i;
char *p, *q;
#ifdef CONFIG_AMIGA
if (MACH_IS_AMIGA)
register_console (ami_serial_print);
#endif
#ifdef CONFIG_ATARI
if (MACH_IS_ATARI)
register_console (ata_serial_print);
#endif
if (boot_info.cputype & CPU_68040)
m68k_is040or060 = 4;
else if (boot_info.cputype & CPU_68060)
m68k_is040or060 = 6;
/* clear the fpu if we have one */
if (boot_info.cputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) {
volatile int zero = 0;
asm __volatile__ ("frestore %0" : : "m" (zero));
}
memory_start = availmem;
memory_end = 0;
for (i = 0; i < boot_info.num_memory; i++)
memory_end += boot_info.memory[i].size & MASK_256K;
init_task.mm->start_code = 0;
init_task.mm->end_code = (unsigned long) &_etext;
init_task.mm->end_data = (unsigned long) &_edata;
init_task.mm->brk = (unsigned long) &_end;
*cmdline_p = boot_info.command_line;
memcpy(saved_command_line, *cmdline_p, CL_SIZE);
/* Parse the command line for arch-specific options.
* For the m68k, this is currently only "debug=xxx" to enable printing
* certain kernel messages to some machine-specific device.
*/
for( p = *cmdline_p; p && *p; ) {
i = 0;
if (!strncmp( p, "debug=", 6 )) {
strncpy( m68k_debug_device, p+6, sizeof(m68k_debug_device)-1 );
m68k_debug_device[sizeof(m68k_debug_device)-1] = 0;
if ((q = strchr( m68k_debug_device, ' ' ))) *q = 0;
i = 1;
}
if (i) {
/* option processed, delete it */
if ((q = strchr( p, ' ' )))
strcpy( p, q+1 );
else
*p = 0;
} else {
if ((p = strchr( p, ' ' ))) ++p;
}
}
*memory_start_p = memory_start;
*memory_end_p = memory_end;
switch (boot_info.machtype) {
#ifdef CONFIG_AMIGA
case MACH_AMIGA:
config_amiga();
break;
#endif
#ifdef CONFIG_ATARI
case MACH_ATARI:
config_atari();
break;
#endif
#ifdef CONFIG_MAC
case MACH_MAC:
config_mac();
break;
#endif
default:
panic ("No configuration setup");
}
#ifdef CONFIG_BLK_DEV_INITRD
if (boot_info.ramdisk_size) {
initrd_start = PTOV (boot_info.ramdisk_addr);
initrd_end = initrd_start + boot_info.ramdisk_size * 1024;
}
#endif
}
int setkeycode(unsigned int scancode, unsigned int keycode)
{
return -EOPNOTSUPP;
}
int getkeycode(unsigned int scancode)
{
return -EOPNOTSUPP;
}
int get_cpuinfo(char * buffer)
{
char *cpu, *mmu, *fpu;
u_long clockfreq, clockfactor;
#define CLOCK_FACTOR_68020 (8046) /* 3107016 loops/s @ 25 MHz (Sun-3) */
#define CLOCK_FACTOR_68030 (8010) /* 3994575 loops/s @ 32 MHz */
#define CLOCK_FACTOR_68040 (3010) /* 8305552 loops/s @ 25 MHz */
#define CLOCK_FACTOR_68060 (998) /* 50081241 loops/s @ 50 MHz */
if (boot_info.cputype & CPU_68020) {
cpu = "68020";
mmu = "68851";
clockfactor = CLOCK_FACTOR_68020;
} else if (boot_info.cputype & CPU_68030) {
cpu = mmu = "68030";
clockfactor = CLOCK_FACTOR_68030;
} else if (boot_info.cputype & CPU_68040) {
cpu = mmu = "68040";
clockfactor = CLOCK_FACTOR_68040;
} else if (boot_info.cputype & CPU_68060) {
cpu = mmu = "68060";
clockfactor = CLOCK_FACTOR_68060;
} else {
cpu = mmu = "680x0";
clockfactor = 0;
}
if (boot_info.cputype & FPU_68881)
fpu = "68881";
else if (boot_info.cputype & FPU_68882)
fpu = "68882";
else if (boot_info.cputype & FPU_68040)
fpu = "68040";
else if (boot_info.cputype & FPU_68060)
fpu = "68060";
else
fpu = "none";
clockfreq = loops_per_sec/1000*clockfactor;
return(sprintf(buffer, "CPU:\t\t%s\n"
"MMU:\t\t%s\n"
"FPU:\t\t%s\n"
"Clockspeed:\t%lu.%1luMHz\n"
"BogoMips:\t%lu.%02lu\n",
cpu, mmu, fpu, (clockfreq+50000)/1000000,
((clockfreq+50000)/100000)%10, loops_per_sec/500000,
(loops_per_sec/5000)%100));
}
int get_hardware_list(char *buffer)
{
int len = 0;
char model[80];
u_long mem;
int i;
switch (boot_info.machtype) {
#ifdef CONFIG_AMIGA
case MACH_AMIGA:
amiga_get_model(model);
break;
#endif
#ifdef CONFIG_ATARI
case MACH_ATARI:
atari_get_model(model);
break;
#endif
#ifdef CONFIG_MAC
case MACH_MAC:
mac_get_model(model);
break;
#endif
default:
strcpy(model, "Unknown m68k");
} /* boot_info.machtype */
len += sprintf(buffer+len, "Model:\t\t%s\n", model);
len += get_cpuinfo(buffer+len);
for (mem = 0, i = 0; i < boot_info.num_memory; i++)
mem += boot_info.memory[i].size;
len += sprintf(buffer+len, "System Memory:\t%ldK\n", mem>>10);
switch (boot_info.machtype) {
#ifdef CONFIG_AMIGA
case MACH_AMIGA:
len += amiga_get_hardware_list(buffer+len);
break;
#endif
#ifdef CONFIG_ATARI
case MACH_ATARI:
len += atari_get_hardware_list(buffer+len);
break;
#endif
#ifdef CONFIG_MAC
case MACH_MAC:
break;
#endif
} /* boot_info.machtype */
return(len);
}
#ifdef CONFIG_BLK_DEV_FD
int floppy_init(void)
{
if (mach_floppy_init)
return mach_floppy_init();
else
return 0;
}
void floppy_setup(char *str, int *ints)
{
if (mach_floppy_setup)
mach_floppy_setup (str, ints);
}
void floppy_eject(void)
{
if (mach_floppy_eject)
mach_floppy_eject();
}
#endif
unsigned long arch_kbd_init(void)
{
return mach_keyb_init();
}
void arch_gettod(int *year, int *mon, int *day, int *hour,
int *min, int *sec)
{
if (mach_gettod)
mach_gettod(year, mon, day, hour, min, sec);
else
*year = *mon = *day = *hour = *min = *sec = 0;
}
void video_setup (char *options, int *ints)
{
if (mach_video_setup)
mach_video_setup (options, ints);
}
