patch-1.3.94 linux/arch/m68k/kernel/setup.c

• Lines: 356
• Date: Fri Apr 19 02:41:14 1996
• Orig file: v1.3.93/linux/arch/m68k/kernel/setup.c
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.93/linux/arch/m68k/kernel/setup.c linux/arch/m68k/kernel/setup.c
@@ -0,0 +1,355 @@
+/*
+ *  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 (*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_check_partition) (struct gendisk *, unsigned int);
+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;
+#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;
+
+	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/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 */
+
+#if 0 /* ++1.3++ */
+    len += get_serial_list (buffer + len);
+#endif /* ++1.3++ */
+
+    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);
+}
+#endif
+
+unsigned long arch_kbd_init(void)
+{
+	return mach_keyb_init();
+}
+
+int rs_init(void)
+{
+	return 0;
+}
+
+struct serial_struct;
+int register_serial(struct serial_struct *req)
+{
+    return -1;
+}
+
+void unregister_serial(int line)
+{
+}
+
+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);
+}