x86: qemu: Extract getting memory size to a separate routine

This extracts getting memory size logic in dram_init() to a separate
routine qemu_get_low_memory_size(). No functional changes.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Aiden Park <aiden.park@intel.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/arch/x86/cpu/qemu/dram.c b/arch/x86/cpu/qemu/dram.c
index 736c4c3ace..c29b073d7c 100644
--- a/arch/x86/cpu/qemu/dram.c
+++ b/arch/x86/cpu/qemu/dram.c
@@ -9,7 +9,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int dram_init(void)
+u32 qemu_get_low_memory_size(void)
 {
 	u32 ram;
 
@@ -19,7 +19,12 @@ int dram_init(void)
 	ram |= ((u32)inb(CMOS_DATA_PORT)) << 6;
 	ram += 16 * 1024;
 
-	gd->ram_size = ram * 1024;
+	return ram * 1024;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = qemu_get_low_memory_size();
 	post_code(POST_DRAM);
 
 	return 0;