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Diffstat (limited to 'arch/m68knommu/kernel/setup.c')
| -rw-r--r-- | arch/m68knommu/kernel/setup.c | 347 |
1 files changed, 347 insertions, 0 deletions
diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68knommu/kernel/setup.c new file mode 100644 index 00000000000..557238596dc --- /dev/null +++ b/arch/m68knommu/kernel/setup.c @@ -0,0 +1,347 @@ +/* + * linux/arch/m68knommu/kernel/setup.c + * + * Copyright (C) 1999-2004 Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@lineo.ca> + * 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/config.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/fs.h> +#include <linux/fb.h> +#include <linux/console.h> +#include <linux/genhd.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/major.h> +#include <linux/bootmem.h> +#include <linux/seq_file.h> +#include <linux/root_dev.h> +#include <linux/init.h> + +#include <asm/setup.h> +#include <asm/irq.h> +#include <asm/machdep.h> + +#ifdef CONFIG_BLK_DEV_INITRD +#include <asm/pgtable.h> +#endif + +unsigned long rom_length; +unsigned long memory_start; +unsigned long memory_end; + +char command_line[COMMAND_LINE_SIZE]; + +/* setup some dummy routines */ +static void dummy_waitbut(void) +{ +} + +void (*mach_sched_init) (irqreturn_t (*handler)(int, void *, struct pt_regs *)) = NULL; +void (*mach_tick)( void ) = NULL; +/* machine dependent keyboard functions */ +int (*mach_keyb_init) (void) = NULL; +int (*mach_kbdrate) (struct kbd_repeat *) = NULL; +void (*mach_kbd_leds) (unsigned int) = NULL; +/* machine dependent irq functions */ +void (*mach_init_IRQ) (void) = NULL; +irqreturn_t (*(*mach_default_handler)[]) (int, void *, struct pt_regs *) = NULL; +void (*mach_enable_irq) (unsigned int) = NULL; +void (*mach_disable_irq) (unsigned int) = NULL; +int (*mach_get_irq_list) (struct seq_file *, void *) = NULL; +void (*mach_process_int) (int irq, struct pt_regs *fp) = NULL; +void (*mach_trap_init) (void); +/* machine dependent timer functions */ +unsigned long (*mach_gettimeoffset) (void) = NULL; +void (*mach_gettod) (int*, int*, int*, int*, int*, int*) = NULL; +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 ) = NULL; +void (*mach_reset)( void ) = NULL; +void (*waitbut)(void) = dummy_waitbut; +void (*mach_debug_init)(void) = NULL; +void (*mach_halt)( void ) = NULL; +void (*mach_power_off)( void ) = NULL; + + +#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_M68332 + #define CPU "MC68332" +#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_M5249) + #define CPU "COLDFIRE(m5249)" +#endif +#if defined(CONFIG_M527x) + #define CPU "COLDFIRE(m5270/5271/5274/5275)" +#endif +#if defined(CONFIG_M5272) + #define CPU "COLDFIRE(m5272)" +#endif +#if defined(CONFIG_M528x) + #define CPU "COLDFIRE(m5280/5282)" +#endif +#if defined(CONFIG_M5307) + #define CPU "COLDFIRE(m5307)" +#endif +#if defined(CONFIG_M5407) + #define CPU "COLDFIRE(m5407)" +#endif +#ifndef CPU + #define CPU "UNKOWN" +#endif + +/* (es) */ +/* note: why is this defined here? the must be a better place to put this */ +#if defined( CONFIG_TELOS) || defined( CONFIG_UCDIMM ) || defined( CONFIG_UCSIMM ) || defined(CONFIG_DRAGEN2) || (defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )) +#define CAT_ROMARRAY +#endif +/* (/es) */ + +extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end; +extern int _ramstart, _ramend; + +void setup_arch(char **cmdline_p) +{ + int bootmap_size; + +#if defined(CAT_ROMARRAY) && defined(DEBUG) + extern int __data_rom_start; + extern int __data_start; + int *romarray = (int *)((int) &__data_rom_start + + (int)&_edata - (int)&__data_start); +#endif + + memory_start = PAGE_ALIGN(_ramstart); + memory_end = _ramend; /* by now the stack is part of the init task */ + + 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)); + + 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 +#ifdef CONFIG_TELOS + printk(KERN_INFO "Modified for Omnia ToolVox by James D. Schettine, james@telos-systems.com\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 + +#ifdef CONFIG_M68EZ328ADS + printk(KERN_INFO "M68EZ328ADS board support (C) 1999 Vladimir Gurevich <vgurevic@cisco.com>\n"); +#endif + +#ifdef CONFIG_ALMA_ANS + printk(KERN_INFO "Alma Electronics board support (C) 1999 Vladimir Gurevich <vgurevic@cisco.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 DEBUG + printk(KERN_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); + printk(KERN_DEBUG "KERNEL -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x " + "STACK=0x%06x-0x%06x\n", +#ifdef CAT_ROMARRAY + (int) romarray, ((int) romarray) + romarray[2], +#else + (int) &_ebss, (int) memory_start, +#endif + (int) memory_start, (int) memory_end, + (int) memory_end, (int) _ramend); +#endif + + /* Keep a copy of command line */ + *cmdline_p = &command_line[0]; + memcpy(saved_command_line, command_line, COMMAND_LINE_SIZE); + saved_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); + + /* + * Get kmalloc into gear. + */ + paging_init(); +} + +int get_cpuinfo(char * buffer) +{ + 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 + + return(sprintf(buffer, "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))); + +} + +/* + * 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) +{ +} + +struct seq_operations cpuinfo_op = { + .start = c_start, + .next = c_next, + .stop = c_stop, + .show = show_cpuinfo, +}; + +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; +} + |