diff options
Diffstat (limited to 'arch/arm/kernel/setup.c')
| -rw-r--r-- | arch/arm/kernel/setup.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 5ea4fb718b97..db2382853450 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -308,7 +308,44 @@ static void __init cacheid_init(void) * already provide the required functionality. */ extern struct proc_info_list *lookup_processor_type(unsigned int); -extern struct machine_desc *lookup_machine_type(unsigned int); + +static void __init early_print(const char *str, ...) +{ + extern void printascii(const char *); + char buf[256]; + va_list ap; + + va_start(ap, str); + vsnprintf(buf, sizeof(buf), str, ap); + va_end(ap); + +#ifdef CONFIG_DEBUG_LL + printascii(buf); +#endif + printk("%s", buf); +} + +static struct machine_desc * __init lookup_machine_type(unsigned int type) +{ + extern struct machine_desc __arch_info_begin[], __arch_info_end[]; + struct machine_desc *p; + + for (p = __arch_info_begin; p < __arch_info_end; p++) + if (type == p->nr) + return p; + + early_print("\n" + "Error: unrecognized/unsupported machine ID (r1 = 0x%08x).\n\n" + "Available machine support:\n\nID (hex)\tNAME\n", type); + + for (p = __arch_info_begin; p < __arch_info_end; p++) + early_print("%08x\t%s\n", p->nr, p->name); + + early_print("\nPlease check your kernel config and/or bootloader.\n"); + + while (true) + /* can't use cpu_relax() here as it may require MMU setup */; +} static void __init feat_v6_fixup(void) { |