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Diffstat (limited to 'arch/m68k/kernel/setup_no.c')
| -rw-r--r-- | arch/m68k/kernel/setup_no.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c new file mode 100644 index 000000000..37fb66355 --- /dev/null +++ b/arch/m68k/kernel/setup_no.c @@ -0,0 +1,221 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * 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/memblock.h> +#include <linux/seq_file.h> +#include <linux/init.h> +#include <linux/initrd.h> +#include <linux/root_dev.h> +#include <linux/rtc.h> + +#include <asm/setup.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/machdep.h> +#include <asm/sections.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_sched_init)(void) __initdata = NULL; + +/* machine dependent reboot functions */ +void (*mach_reset)(void); +void (*mach_halt)(void); + +#ifdef CONFIG_M68000 +#if defined(CONFIG_M68328) +#define CPU_NAME "MC68328" +#elif defined(CONFIG_M68EZ328) +#define CPU_NAME "MC68EZ328" +#elif defined(CONFIG_M68VZ328) +#define CPU_NAME "MC68VZ328" +#else +#define CPU_NAME "MC68000" +#endif +#endif /* CONFIG_M68000 */ +#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 + +void __init setup_arch(char **cmdline_p) +{ + memory_start = PAGE_ALIGN(_ramstart); + memory_end = _ramend; + + setup_initial_init_mm(_stext, _etext, _edata, NULL); + + config_BSP(&command_line[0], sizeof(command_line)); + +#if defined(CONFIG_BOOTPARAM) + strscpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line)); +#endif /* CONFIG_BOOTPARAM */ + + process_uboot_commandline(&command_line[0], sizeof(command_line)); + + pr_info("uClinux with CPU " CPU_NAME "\n"); + +#ifdef CONFIG_UCDIMM + pr_info("uCdimm by Lineo, Inc. <www.lineo.com>\n"); +#endif +#ifdef CONFIG_M68328 + pr_info("68328 support D. Jeff Dionne <jeff@uclinux.org>\n"); + pr_info("68328 support Kenneth Albanowski <kjahds@kjshds.com>\n"); +#endif +#ifdef CONFIG_M68EZ328 + pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n"); +#endif +#ifdef CONFIG_M68VZ328 + pr_info("M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n"); + pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n"); +#endif +#ifdef CONFIG_COLDFIRE + pr_info("COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n"); +#ifdef CONFIG_M5307 + pr_info("Modified for M5307 by Dave Miller, dmiller@intellistor.com\n"); +#endif +#ifdef CONFIG_ELITE + pr_info("Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n"); +#endif +#endif + pr_info("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n"); + +#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 ) + pr_info("68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n"); + pr_info("TRG SuperPilot FLASH card support <info@trgnet.com>\n"); +#endif +#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 ) + pr_info("PalmV support by Lineo Inc. <jeff@uclinux.com>\n"); +#endif +#ifdef CONFIG_DRAGEN2 + pr_info("DragonEngine II board support by Georges Menie\n"); +#endif +#ifdef CONFIG_M5235EVB + pr_info("Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n"); +#endif + + pr_debug("KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p BSS=0x%p-0x%p\n", + _stext, _etext, _sdata, _edata, __bss_start, __bss_stop); + pr_debug("MEMORY -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx\n ", + __bss_stop, memory_start, memory_start, memory_end); + + memblock_add(_rambase, memory_end - _rambase); + memblock_reserve(_rambase, memory_start - _rambase); + + /* 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; + + /* + * Give all the memory to the bootmap allocator, tell it to put the + * boot mem_map at the start of memory. + */ + min_low_pfn = PFN_DOWN(memory_start); + max_pfn = max_low_pfn = PFN_DOWN(memory_end); + +#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD) + if ((initrd_start > 0) && (initrd_start < initrd_end) && + (initrd_end < memory_end)) + memblock_reserve(initrd_start, initrd_end - initrd_start); +#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, +}; + |