1 files changed, 1 insertions, 1 deletions

diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index aee603123030..b2d26d9d8489 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -186,7 +186,7 @@ static void __init setup_bootmem(void)
         BUG_ON(mem_size == 0);
 
         set_max_mapnr(PFN_DOWN(mem_size));
-        max_low_pfn = pfn_base + PFN_DOWN(mem_size);
+        max_low_pfn = memblock_end_of_DRAM();
 
 #ifdef CONFIG_BLK_DEV_INITRD
         setup_initrd();