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Diffstat (limited to 'arch/ppc/amiga/bootinfo.c')
-rw-r--r--arch/ppc/amiga/bootinfo.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/ppc/amiga/bootinfo.c b/arch/ppc/amiga/bootinfo.c
new file mode 100644
index 00000000000..e2e965661d0
--- /dev/null
+++ b/arch/ppc/amiga/bootinfo.c
@@ -0,0 +1,80 @@
+/*
+ * arch/ppc/amiga/bootinfo.c
+ *
+ * Extracted from arch/m68k/kernel/setup.c.
+ * Should be properly generalized and put somewhere else.
+ * Jesper
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/init.h>
+
+#include <asm/setup.h>
+#include <asm/bootinfo.h>
+
+extern char cmd_line[CL_SIZE];
+
+extern int num_memory;
+extern int m68k_realnum_memory;
+extern struct mem_info memory[NUM_MEMINFO];
+extern struct mem_info m68k_memory[NUM_MEMINFO];
+extern struct mem_info ramdisk;
+
+extern int amiga_parse_bootinfo(const struct bi_record *);
+extern int atari_parse_bootinfo(const struct bi_record *);
+extern int mac_parse_bootinfo(const struct bi_record *);
+
+void __init parse_bootinfo(const struct bi_record *record)
+{
+ while (record->tag != BI_LAST) {
+ int unknown = 0;
+ const u_long *data = record->data;
+ switch (record->tag) {
+ case BI_MACHTYPE:
+ case BI_CPUTYPE:
+ case BI_FPUTYPE:
+ case BI_MMUTYPE:
+ /* Already set up by head.S */
+ break;
+
+ case BI_MEMCHUNK:
+ if (num_memory < NUM_MEMINFO) {
+ memory[num_memory].addr = data[0];
+ memory[num_memory].size = data[1];
+ num_memory++;
+
+ /* FIXME: duplicate for m68k drivers. */
+ m68k_memory[m68k_realnum_memory].addr = data[0];
+ m68k_memory[m68k_realnum_memory].size = data[1];
+ m68k_realnum_memory++;
+ } else
+ printk("parse_bootinfo: too many memory chunks\n");
+ break;
+
+ case BI_RAMDISK:
+ ramdisk.addr = data[0];
+ ramdisk.size = data[1];
+ break;
+
+ case BI_COMMAND_LINE:
+ strlcpy(cmd_line, (const char *)data, sizeof(cmd_line));
+ break;
+
+ default:
+ if (MACH_IS_AMIGA)
+ unknown = amiga_parse_bootinfo(record);
+ else if (MACH_IS_ATARI)
+ unknown = atari_parse_bootinfo(record);
+ else if (MACH_IS_MAC)
+ unknown = mac_parse_bootinfo(record);
+ else
+ unknown = 1;
+ }
+ if (unknown)
+ printk("parse_bootinfo: unknown tag 0x%04x ignored\n",
+ record->tag);
+ record = (struct bi_record *)((u_long)record+record->size);
+ }
+}