+++ /dev/null
-/*
- * 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 <linux/initrd.h>
-#include <linux/root_dev.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_M68328
-#define CPU_NAME "MC68328"
-#endif
-#ifdef CONFIG_M68EZ328
-#define CPU_NAME "MC68EZ328"
-#endif
-#ifdef CONFIG_M68VZ328
-#define CPU_NAME "MC68VZ328"
-#endif
-#ifdef CONFIG_M68360
-#define CPU_NAME "MC68360"
-#endif
-#ifndef CPU_NAME
-#define CPU_NAME "UNKNOWN"
-#endif
-
-/*
- * Different cores have different instruction execution timings.
- * The old/traditional 68000 cores are basically all the same, at 16.
- * The ColdFire cores vary a little, their values are defined in their
- * headers. We default to the standard 68000 value here.
- */
-#ifndef CPU_INSTR_PER_JIFFY
-#define CPU_INSTR_PER_JIFFY 16
-#endif
-
-extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
-extern int _ramstart, _ramend;
-
-#if defined(CONFIG_UBOOT)
-/*
- * parse_uboot_commandline
- *
- * Copies u-boot commandline arguments and store them in the proper linux
- * variables.
- *
- * Assumes:
- * _init_sp global contains the address in the stack pointer when the
- * kernel starts (see head.S::_start)
- *
- * U-Boot calling convention:
- * (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
- *
- * _init_sp can be parsed as such
- *
- * _init_sp+00 = u-boot cmd after jsr into kernel (skip)
- * _init_sp+04 = &kernel board_info (residual data)
- * _init_sp+08 = &initrd_start
- * _init_sp+12 = &initrd_end
- * _init_sp+16 = &cmd_start
- * _init_sp+20 = &cmd_end
- *
- * This also assumes that the memory locations pointed to are still
- * unmodified. U-boot places them near the end of external SDRAM.
- *
- * Argument(s):
- * commandp = the linux commandline arg container to fill.
- * size = the sizeof commandp.
- *
- * Returns:
- */
-void parse_uboot_commandline(char *commandp, int size)
-{
- extern unsigned long _init_sp;
- unsigned long *sp;
- unsigned long uboot_kbd;
- unsigned long uboot_initrd_start, uboot_initrd_end;
- unsigned long uboot_cmd_start, uboot_cmd_end;
-
-
- sp = (unsigned long *)_init_sp;
- uboot_kbd = sp[1];
- uboot_initrd_start = sp[2];
- uboot_initrd_end = sp[3];
- uboot_cmd_start = sp[4];
- uboot_cmd_end = sp[5];
-
- if (uboot_cmd_start && uboot_cmd_end)
- strncpy(commandp, (const char *)uboot_cmd_start, size);
-#if defined(CONFIG_BLK_DEV_INITRD)
- if (uboot_initrd_start && uboot_initrd_end &&
- (uboot_initrd_end > uboot_initrd_start)) {
- initrd_start = uboot_initrd_start;
- initrd_end = uboot_initrd_end;
- ROOT_DEV = Root_RAM0;
- printk(KERN_INFO "initrd at 0x%lx:0x%lx\n",
- initrd_start, initrd_end);
- }
-#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
-}
-#endif /* #if defined(CONFIG_UBOOT) */
-
-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 /* CONFIG_BOOTPARAM */
-
-#if defined(CONFIG_UBOOT)
- /* CONFIG_UBOOT and CONFIG_BOOTPARAM defined, concatenate cmdline */
- #if defined(CONFIG_BOOTPARAM)
- /* Add the whitespace separator */
- command_line[strlen(CONFIG_BOOTPARAM_STRING)] = ' ';
- /* Parse uboot command line into the rest of the buffer */
- parse_uboot_commandline(
- &command_line[(strlen(CONFIG_BOOTPARAM_STRING)+1)],
- (sizeof(command_line) -
- (strlen(CONFIG_BOOTPARAM_STRING)+1)));
- /* Only CONFIG_UBOOT defined, create cmdline */
- #else
- parse_uboot_commandline(&command_line[0], sizeof(command_line));
- #endif /* CONFIG_BOOTPARAM */
- command_line[sizeof(command_line) - 1] = 0;
-#endif /* CONFIG_UBOOT */
-
- printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU_NAME "\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;
-
-#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);
-
-#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD)
- if ((initrd_start > 0) && (initrd_start < initrd_end) &&
- (initrd_end < memory_end))
- reserve_bootmem(initrd_start, initrd_end - initrd_start,
- BOOTMEM_DEFAULT);
-#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
-
- /*
- * 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_NAME;
- mmu = "none";
- fpu = "none";
- clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY;
-
- 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,
-};
-
git.samba.org / sfrench / cifs-2.6.git / blobdiff