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-rw-r--r--arch/arm26/kernel/setup.c572
1 files changed, 0 insertions, 572 deletions
diff --git a/arch/arm26/kernel/setup.c b/arch/arm26/kernel/setup.c
deleted file mode 100644
index 0e006c6cd5a..00000000000
--- a/arch/arm26/kernel/setup.c
+++ /dev/null
@@ -1,572 +0,0 @@
-/*
- * linux/arch/arm26/kernel/setup.c
- *
- * Copyright (C) 1995-2001 Russell King
- * Copyright (C) 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/utsname.h>
-#include <linux/blkdev.h>
-#include <linux/console.h>
-#include <linux/bootmem.h>
-#include <linux/seq_file.h>
-#include <linux/screen_info.h>
-#include <linux/init.h>
-#include <linux/root_dev.h>
-
-#include <asm/elf.h>
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/procinfo.h>
-#include <asm/setup.h>
-#include <asm/mach-types.h>
-#include <asm/tlbflush.h>
-
-#include <asm/irqchip.h>
-
-#ifndef MEM_SIZE
-#define MEM_SIZE (16*1024*1024)
-#endif
-
-#ifdef CONFIG_PREEMPT
-DEFINE_SPINLOCK(kernel_flag);
-#endif
-
-#if defined(CONFIG_FPE_NWFPE)
-char fpe_type[8];
-
-static int __init fpe_setup(char *line)
-{
- memcpy(fpe_type, line, 8);
- return 1;
-}
-
-__setup("fpe=", fpe_setup);
-#endif
-
-extern void paging_init(struct meminfo *);
-extern void convert_to_tag_list(struct tag *tags);
-extern void squash_mem_tags(struct tag *tag);
-extern void bootmem_init(struct meminfo *);
-extern int root_mountflags;
-extern int _stext, _text, _etext, _edata, _end;
-#ifdef CONFIG_XIP_KERNEL
-extern int _endtext, _sdata;
-#endif
-
-
-unsigned int processor_id;
-unsigned int __machine_arch_type;
-unsigned int system_rev;
-unsigned int system_serial_low;
-unsigned int system_serial_high;
-unsigned int elf_hwcap;
-unsigned int memc_ctrl_reg;
-unsigned int number_mfm_drives;
-
-struct processor processor;
-
-char elf_platform[ELF_PLATFORM_SIZE];
-
-unsigned long phys_initrd_start __initdata = 0;
-unsigned long phys_initrd_size __initdata = 0;
-static struct meminfo meminfo __initdata = { 0, };
-static struct proc_info_item proc_info;
-static const char *machine_name;
-static char __initdata command_line[COMMAND_LINE_SIZE];
-
-static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
-
-/*
- * Standard memory resources
- */
-static struct resource mem_res[] = {
- { "Video RAM", 0, 0, IORESOURCE_MEM },
- { "Kernel code", 0, 0, IORESOURCE_MEM },
- { "Kernel data", 0, 0, IORESOURCE_MEM }
-};
-
-#define video_ram mem_res[0]
-#define kernel_code mem_res[1]
-#define kernel_data mem_res[2]
-
-static struct resource io_res[] = {
- { "reserved", 0x3bc, 0x3be, IORESOURCE_IO | IORESOURCE_BUSY },
- { "reserved", 0x378, 0x37f, IORESOURCE_IO | IORESOURCE_BUSY },
- { "reserved", 0x278, 0x27f, IORESOURCE_IO | IORESOURCE_BUSY }
-};
-
-#define lp0 io_res[0]
-#define lp1 io_res[1]
-#define lp2 io_res[2]
-
-#define dump_cpu_info() do { } while (0)
-
-static void __init setup_processor(void)
-{
- extern struct proc_info_list __proc_info_begin, __proc_info_end;
- struct proc_info_list *list;
-
- /*
- * locate processor in the list of supported processor
- * types. The linker builds this table for us from the
- * entries in arch/arm26/mm/proc-*.S
- */
- for (list = &__proc_info_begin; list < &__proc_info_end ; list++)
- if ((processor_id & list->cpu_mask) == list->cpu_val)
- break;
-
- /*
- * If processor type is unrecognised, then we
- * can do nothing...
- */
- if (list >= &__proc_info_end) {
- printk("CPU configuration botched (ID %08x), unable "
- "to continue.\n", processor_id);
- while (1);
- }
-
- proc_info = *list->info;
- processor = *list->proc;
-
-
- printk("CPU: %s %s revision %d\n",
- proc_info.manufacturer, proc_info.cpu_name,
- (int)processor_id & 15);
-
- dump_cpu_info();
-
- sprintf(init_utsname()->machine, "%s", list->arch_name);
- sprintf(elf_platform, "%s", list->elf_name);
- elf_hwcap = list->elf_hwcap;
-
- cpu_proc_init();
-}
-
-/*
- * Initial parsing of the command line. We need to pick out the
- * memory size. We look for mem=size@start, where start and size
- * are "size[KkMm]"
- */
-static void __init
-parse_cmdline(struct meminfo *mi, char **cmdline_p, char *from)
-{
- char c = ' ', *to = command_line;
- int usermem = 0, len = 0;
-
- for (;;) {
- if (c == ' ' && !memcmp(from, "mem=", 4)) {
- unsigned long size, start;
-
- if (to != command_line)
- to -= 1;
-
- /*
- * If the user specifies memory size, we
- * blow away any automatically generated
- * size.
- */
- if (usermem == 0) {
- usermem = 1;
- mi->nr_banks = 0;
- }
-
- start = PHYS_OFFSET;
- size = memparse(from + 4, &from);
- if (*from == '@')
- start = memparse(from + 1, &from);
-
- mi->bank[mi->nr_banks].start = start;
- mi->bank[mi->nr_banks].size = size;
- mi->bank[mi->nr_banks].node = PHYS_TO_NID(start);
- mi->nr_banks += 1;
- }
- c = *from++;
- if (!c)
- break;
- if (COMMAND_LINE_SIZE <= ++len)
- break;
- *to++ = c;
- }
- *to = '\0';
- *cmdline_p = command_line;
-}
-
-static void __init
-setup_ramdisk(int doload, int prompt, int image_start, unsigned int rd_sz)
-{
-#ifdef CONFIG_BLK_DEV_RAM
- extern int rd_size, rd_image_start, rd_prompt, rd_doload;
-
- rd_image_start = image_start;
- rd_prompt = prompt;
- rd_doload = doload;
-
- if (rd_sz)
- rd_size = rd_sz;
-#endif
-}
-
-static void __init
-request_standard_resources(struct meminfo *mi)
-{
- struct resource *res;
- int i;
-
- kernel_code.start = init_mm.start_code;
- kernel_code.end = init_mm.end_code - 1;
-#ifdef CONFIG_XIP_KERNEL
- kernel_data.start = init_mm.start_data;
-#else
- kernel_data.start = init_mm.end_code;
-#endif
- kernel_data.end = init_mm.brk - 1;
-
- for (i = 0; i < mi->nr_banks; i++) {
- unsigned long virt_start, virt_end;
-
- if (mi->bank[i].size == 0)
- continue;
-
- virt_start = mi->bank[i].start;
- virt_end = virt_start + mi->bank[i].size - 1;
-
- res = alloc_bootmem_low(sizeof(*res));
- res->name = "System RAM";
- res->start = virt_start;
- res->end = virt_end;
- res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-
- request_resource(&iomem_resource, res);
-
- if (kernel_code.start >= res->start &&
- kernel_code.end <= res->end)
- request_resource(res, &kernel_code);
- if (kernel_data.start >= res->start &&
- kernel_data.end <= res->end)
- request_resource(res, &kernel_data);
- }
-
-/* FIXME - needed? if (mdesc->video_start) {
- video_ram.start = mdesc->video_start;
- video_ram.end = mdesc->video_end;
- request_resource(&iomem_resource, &video_ram);
- }*/
-
- /*
- * Some machines don't have the possibility of ever
- * possessing lp1 or lp2
- */
- if (0) /* FIXME - need to do this for A5k at least */
- request_resource(&ioport_resource, &lp0);
-}
-
-/*
- * Tag parsing.
- *
- * This is the new way of passing data to the kernel at boot time. Rather
- * than passing a fixed inflexible structure to the kernel, we pass a list
- * of variable-sized tags to the kernel. The first tag must be a ATAG_CORE
- * tag for the list to be recognised (to distinguish the tagged list from
- * a param_struct). The list is terminated with a zero-length tag (this tag
- * is not parsed in any way).
- */
-static int __init parse_tag_core(const struct tag *tag)
-{
- if (tag->hdr.size > 2) {
- if ((tag->u.core.flags & 1) == 0)
- root_mountflags &= ~MS_RDONLY;
- ROOT_DEV = old_decode_dev(tag->u.core.rootdev);
- }
- return 0;
-}
-
-__tagtable(ATAG_CORE, parse_tag_core);
-
-static int __init parse_tag_mem32(const struct tag *tag)
-{
- if (meminfo.nr_banks >= NR_BANKS) {
- printk(KERN_WARNING
- "Ignoring memory bank 0x%08x size %dKB\n",
- tag->u.mem.start, tag->u.mem.size / 1024);
- return -EINVAL;
- }
- meminfo.bank[meminfo.nr_banks].start = tag->u.mem.start;
- meminfo.bank[meminfo.nr_banks].size = tag->u.mem.size;
- meminfo.bank[meminfo.nr_banks].node = PHYS_TO_NID(tag->u.mem.start);
- meminfo.nr_banks += 1;
-
- return 0;
-}
-
-__tagtable(ATAG_MEM, parse_tag_mem32);
-
-#if defined(CONFIG_DUMMY_CONSOLE)
-struct screen_info screen_info = {
- .orig_video_lines = 30,
- .orig_video_cols = 80,
- .orig_video_mode = 0,
- .orig_video_ega_bx = 0,
- .orig_video_isVGA = 1,
- .orig_video_points = 8
-};
-
-static int __init parse_tag_videotext(const struct tag *tag)
-{
- screen_info.orig_x = tag->u.videotext.x;
- screen_info.orig_y = tag->u.videotext.y;
- screen_info.orig_video_page = tag->u.videotext.video_page;
- screen_info.orig_video_mode = tag->u.videotext.video_mode;
- screen_info.orig_video_cols = tag->u.videotext.video_cols;
- screen_info.orig_video_ega_bx = tag->u.videotext.video_ega_bx;
- screen_info.orig_video_lines = tag->u.videotext.video_lines;
- screen_info.orig_video_isVGA = tag->u.videotext.video_isvga;
- screen_info.orig_video_points = tag->u.videotext.video_points;
- return 0;
-}
-
-__tagtable(ATAG_VIDEOTEXT, parse_tag_videotext);
-#endif
-
-static int __init parse_tag_acorn(const struct tag *tag)
-{
- memc_ctrl_reg = tag->u.acorn.memc_control_reg;
- number_mfm_drives = tag->u.acorn.adfsdrives;
- return 0;
-}
-
-__tagtable(ATAG_ACORN, parse_tag_acorn);
-
-static int __init parse_tag_ramdisk(const struct tag *tag)
-{
- setup_ramdisk((tag->u.ramdisk.flags & 1) == 0,
- (tag->u.ramdisk.flags & 2) == 0,
- tag->u.ramdisk.start, tag->u.ramdisk.size);
- return 0;
-}
-
-__tagtable(ATAG_RAMDISK, parse_tag_ramdisk);
-
-static int __init parse_tag_initrd(const struct tag *tag)
-{
- printk(KERN_WARNING "ATAG_INITRD is deprecated; please update your bootloader. \n");
- phys_initrd_start = (unsigned long)tag->u.initrd.start;
- phys_initrd_size = (unsigned long)tag->u.initrd.size;
- return 0;
-}
-
-__tagtable(ATAG_INITRD, parse_tag_initrd);
-
-static int __init parse_tag_initrd2(const struct tag *tag)
-{
- printk(KERN_WARNING "ATAG_INITRD is deprecated; please update your bootloader. \n");
- phys_initrd_start = (unsigned long)tag->u.initrd.start;
- phys_initrd_size = (unsigned long)tag->u.initrd.size;
- return 0;
-}
-
-__tagtable(ATAG_INITRD2, parse_tag_initrd2);
-
-static int __init parse_tag_serialnr(const struct tag *tag)
-{
- system_serial_low = tag->u.serialnr.low;
- system_serial_high = tag->u.serialnr.high;
- return 0;
-}
-
-__tagtable(ATAG_SERIAL, parse_tag_serialnr);
-
-static int __init parse_tag_revision(const struct tag *tag)
-{
- system_rev = tag->u.revision.rev;
- return 0;
-}
-
-__tagtable(ATAG_REVISION, parse_tag_revision);
-
-static int __init parse_tag_cmdline(const struct tag *tag)
-{
- strncpy(default_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE);
- default_command_line[COMMAND_LINE_SIZE - 1] = '\0';
- return 0;
-}
-
-__tagtable(ATAG_CMDLINE, parse_tag_cmdline);
-
-/*
- * Scan the tag table for this tag, and call its parse function.
- * The tag table is built by the linker from all the __tagtable
- * declarations.
- */
-static int __init parse_tag(const struct tag *tag)
-{
- extern struct tagtable __tagtable_begin, __tagtable_end;
- struct tagtable *t;
-
- for (t = &__tagtable_begin; t < &__tagtable_end; t++)
- if (tag->hdr.tag == t->tag) {
- t->parse(tag);
- break;
- }
-
- return t < &__tagtable_end;
-}
-
-/*
- * Parse all tags in the list, checking both the global and architecture
- * specific tag tables.
- */
-static void __init parse_tags(const struct tag *t)
-{
- for (; t->hdr.size; t = tag_next(t))
- if (!parse_tag(t))
- printk(KERN_WARNING
- "Ignoring unrecognised tag 0x%08x\n",
- t->hdr.tag);
-}
-
-/*
- * This holds our defaults.
- */
-static struct init_tags {
- struct tag_header hdr1;
- struct tag_core core;
- struct tag_header hdr2;
- struct tag_mem32 mem;
- struct tag_header hdr3;
-} init_tags __initdata = {
- { tag_size(tag_core), ATAG_CORE },
- { 1, PAGE_SIZE, 0xff },
- { tag_size(tag_mem32), ATAG_MEM },
- { MEM_SIZE, PHYS_OFFSET },
- { 0, ATAG_NONE }
-};
-
-void __init setup_arch(char **cmdline_p)
-{
- struct tag *tags = (struct tag *)&init_tags;
- char *from = default_command_line;
-
- setup_processor();
- if(machine_arch_type == MACH_TYPE_A5K)
- machine_name = "A5000";
- else if(machine_arch_type == MACH_TYPE_ARCHIMEDES)
- machine_name = "Archimedes";
- else
- machine_name = "UNKNOWN";
-
- //FIXME - the tag struct is always copied here but this is a block
- // of RAM that is accidentally reserved along with video RAM. perhaps
- // it would be a good idea to explicitly reserve this?
-
- tags = (struct tag *)0x0207c000;
-
- /*
- * If we have the old style parameters, convert them to
- * a tag list.
- */
- if (tags->hdr.tag != ATAG_CORE)
- convert_to_tag_list(tags);
- if (tags->hdr.tag != ATAG_CORE)
- tags = (struct tag *)&init_tags;
- if (tags->hdr.tag == ATAG_CORE) {
- if (meminfo.nr_banks != 0)
- squash_mem_tags(tags);
- parse_tags(tags);
- }
-
- init_mm.start_code = (unsigned long) &_text;
-#ifndef CONFIG_XIP_KERNEL
- init_mm.end_code = (unsigned long) &_etext;
-#else
- init_mm.end_code = (unsigned long) &_endtext;
- init_mm.start_data = (unsigned long) &_sdata;
-#endif
- init_mm.end_data = (unsigned long) &_edata;
- init_mm.brk = (unsigned long) &_end;
-
- memcpy(boot_command_line, from, COMMAND_LINE_SIZE);
- boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
- parse_cmdline(&meminfo, cmdline_p, from);
- bootmem_init(&meminfo);
- paging_init(&meminfo);
- request_standard_resources(&meminfo);
-
-#ifdef CONFIG_VT
-#if defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
-#endif
-}
-
-static const char *hwcap_str[] = {
- "swp",
- "half",
- "thumb",
- "26bit",
- "fastmult",
- "fpa",
- "vfp",
- "edsp",
- NULL
-};
-
-static int c_show(struct seq_file *m, void *v)
-{
- int i;
-
- seq_printf(m, "Processor\t: %s %s rev %d (%s)\n",
- proc_info.manufacturer, proc_info.cpu_name,
- (int)processor_id & 15, elf_platform);
-
- seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
- loops_per_jiffy / (500000/HZ),
- (loops_per_jiffy / (5000/HZ)) % 100);
-
- /* dump out the processor features */
- seq_puts(m, "Features\t: ");
-
- for (i = 0; hwcap_str[i]; i++)
- if (elf_hwcap & (1 << i))
- seq_printf(m, "%s ", hwcap_str[i]);
-
- seq_puts(m, "\n");
-
- seq_printf(m, "CPU part\t\t: %07x\n", processor_id >> 4);
- seq_printf(m, "CPU revision\t: %d\n\n", processor_id & 15);
- seq_printf(m, "Hardware\t: %s\n", machine_name);
- seq_printf(m, "Revision\t: %04x\n", system_rev);
- seq_printf(m, "Serial\t\t: %08x%08x\n",
- system_serial_high, system_serial_low);
-
- return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
- return *pos < 1 ? (void *)1 : NULL;
-}
-
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
- ++*pos;
- return NULL;
-}
-
-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 = c_show
-};
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-28 10:13:35 +0000