--- zzzz-none-000/linux-5.4.213/mm/memblock.c	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/mm/memblock.c	2024-08-14 09:02:12.000000000 +0000
@@ -566,6 +566,7 @@
 	/* special case for empty array */
 	if (type->regions[0].size == 0) {
 		WARN_ON(type->cnt != 1 || type->total_size);
+		type->start_base = base;
 		type->regions[0].base = base;
 		type->regions[0].size = size;
 		type->regions[0].flags = flags;
@@ -1585,7 +1586,11 @@
 /* lowest address */
 phys_addr_t __init_memblock memblock_start_of_DRAM(void)
 {
+#ifdef CONFIG_ARM64
 	return memblock.memory.regions[0].base;
+#else
+	return memblock.memory.start_base;
+#endif
 }
 
 phys_addr_t __init_memblock memblock_end_of_DRAM(void)