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-rw-r--r--arch/arm/kernel/setup.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 8e9a3e40d949..fc40a2b40595 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -1069,6 +1069,16 @@ void __init setup_arch(char **cmdline_p)
mdesc = setup_machine_fdt(__atags_pointer);
if (!mdesc)
mdesc = setup_machine_tags(__atags_pointer, __machine_arch_type);
+ if (!mdesc) {
+ early_print("\nError: invalid dtb and unrecognized/unsupported machine ID\n");
+ early_print(" r1=0x%08x, r2=0x%08x\n", __machine_arch_type,
+ __atags_pointer);
+ if (__atags_pointer)
+ early_print(" r2[]=%*ph\n", 16,
+ phys_to_virt(__atags_pointer));
+ dump_machine_table();
+ }
+
machine_desc = mdesc;
machine_name = mdesc->name;
dump_stack_set_arch_desc("%s", mdesc->name);