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-rw-r--r--arch/arm/kernel/setup.c39
1 files changed, 38 insertions, 1 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 420b8d6485d6..78678b07901c 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -308,7 +308,44 @@ static void __init cacheid_init(void)
308 * already provide the required functionality. 308 * already provide the required functionality.
309 */ 309 */
310extern struct proc_info_list *lookup_processor_type(unsigned int); 310extern struct proc_info_list *lookup_processor_type(unsigned int);
311extern struct machine_desc *lookup_machine_type(unsigned int); 311
312static void __init early_print(const char *str, ...)
313{
314 extern void printascii(const char *);
315 char buf[256];
316 va_list ap;
317
318 va_start(ap, str);
319 vsnprintf(buf, sizeof(buf), str, ap);
320 va_end(ap);
321
322#ifdef CONFIG_DEBUG_LL
323 printascii(buf);
324#endif
325 printk("%s", buf);
326}
327
328static struct machine_desc * __init lookup_machine_type(unsigned int type)
329{
330 extern struct machine_desc __arch_info_begin[], __arch_info_end[];
331 struct machine_desc *p;
332
333 for (p = __arch_info_begin; p < __arch_info_end; p++)
334 if (type == p->nr)
335 return p;
336
337 early_print("\n"
338 "Error: unrecognized/unsupported machine ID (r1 = 0x%08x).\n\n"
339 "Available machine support:\n\nID (hex)\tNAME\n", type);
340
341 for (p = __arch_info_begin; p < __arch_info_end; p++)
342 early_print("%08x\t%s\n", p->nr, p->name);
343
344 early_print("\nPlease check your kernel config and/or bootloader.\n");
345
346 while (true)
347 /* can't use cpu_relax() here as it may require MMU setup */;
348}
312 349
313static void __init feat_v6_fixup(void) 350static void __init feat_v6_fixup(void)
314{ 351{