powerpc/64: Move 64-bit probe_machine() to later in the boot process

We no long need the machine type that early, so we can move probe_machine()
to after the device-tree has been expanded. This will allow further
consolidation.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/kernel/setup_64.c

@@ -301,9 +301,6 @@ void __init early_setup(unsigned long dt_ptr)
 	setup_paca(&paca[boot_cpuid]);
 	fixup_boot_paca();
 
-	/* Probe the machine type */
-	probe_machine();
-
 	/*
 	 * Configure exception handlers. This include setting up trampolines
 	 * if needed, setting exception endian mode, etc...
@@ -511,6 +508,9 @@ void __init setup_system(void)
 	 */
 	check_for_initrd();
 
+	/* Probe the machine type */
+	probe_machine();
+
 	/*
 	 * Do some platform specific early initializations, that includes
 	 * setting up the hash table pointers. It also sets up some interrupt-mapping