MIPS: Use memblock_add_node() in early_parse_mem() under CONFIG_NUMA

Use memblock_add_node to add new memblock region within a NUMA node
in early_parse_mem() under CONFIG_NUMA, otherwise the mem parameter
can not work well.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/kernel/setup.c

@@ -37,6 +37,7 @@
 #include <asm/cdmm.h>
 #include <asm/cpu.h>
 #include <asm/debug.h>
+#include <asm/mmzone.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/smp-ops.h>
@@ -364,7 +365,10 @@ static int __init early_parse_mem(char *p)
 	if (*p == '@')
 		start = memparse(p + 1, &p);
 
-	memblock_add(start, size);
+	if (IS_ENABLED(CONFIG_NUMA))
+		memblock_add_node(start, size, pa_to_nid(start), MEMBLOCK_NONE);
+	else
+		memblock_add(start, size);
 
 	return 0;
 }