forked from Minki/linux
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
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/*
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* Extracted from arch/m68k/kernel/setup.c.
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* Should be properly generalized and put somewhere else.
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* Jesper
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <asm/setup.h>
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#include <asm/bootinfo.h>
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extern char cmd_line[CL_SIZE];
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extern int num_memory;
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extern int m68k_realnum_memory;
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extern struct mem_info memory[NUM_MEMINFO];
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extern struct mem_info m68k_memory[NUM_MEMINFO];
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extern struct mem_info ramdisk;
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extern int amiga_parse_bootinfo(const struct bi_record *);
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extern int atari_parse_bootinfo(const struct bi_record *);
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extern int mac_parse_bootinfo(const struct bi_record *);
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void __init parse_bootinfo(const struct bi_record *record)
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{
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while (record->tag != BI_LAST) {
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int unknown = 0;
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const u_long *data = record->data;
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switch (record->tag) {
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case BI_MACHTYPE:
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case BI_CPUTYPE:
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case BI_FPUTYPE:
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case BI_MMUTYPE:
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/* Already set up by head.S */
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break;
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case BI_MEMCHUNK:
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if (num_memory < NUM_MEMINFO) {
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memory[num_memory].addr = data[0];
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memory[num_memory].size = data[1];
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num_memory++;
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/* FIXME: duplicate for m68k drivers. */
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m68k_memory[m68k_realnum_memory].addr = data[0];
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m68k_memory[m68k_realnum_memory].size = data[1];
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m68k_realnum_memory++;
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} else
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printk("parse_bootinfo: too many memory chunks\n");
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break;
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case BI_RAMDISK:
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ramdisk.addr = data[0];
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ramdisk.size = data[1];
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break;
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case BI_COMMAND_LINE:
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strlcpy(cmd_line, (const char *)data, sizeof(cmd_line));
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break;
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default:
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if (MACH_IS_AMIGA)
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unknown = amiga_parse_bootinfo(record);
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else if (MACH_IS_ATARI)
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unknown = atari_parse_bootinfo(record);
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else if (MACH_IS_MAC)
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unknown = mac_parse_bootinfo(record);
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else
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unknown = 1;
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}
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if (unknown)
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printk("parse_bootinfo: unknown tag 0x%04x ignored\n",
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record->tag);
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record = (struct bi_record *)((u_long)record+record->size);
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}
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}
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