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 ---
arch/x86/cpu/qemu/dram.c | 9 +++++++-- arch/x86/include/asm/arch-qemu/qemu.h | 7 +++++++ 2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/arch/x86/cpu/qemu/dram.c b/arch/x86/cpu/qemu/dram.c index 736c4c3..c29b073 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; diff --git a/arch/x86/include/asm/arch-qemu/qemu.h b/arch/x86/include/asm/arch-qemu/qemu.h index 100eb8e..c98deb2 100644 --- a/arch/x86/include/asm/arch-qemu/qemu.h +++ b/arch/x86/include/asm/arch-qemu/qemu.h @@ -37,4 +37,11 @@ #define PMREGMISC 0x80 #define PMIOSE (1 << 0)
+/** + * qemu_get_low_memory_size() - Get low memory size + * + * @return: size of memory below 4GiB + */ +u32 qemu_get_low_memory_size(void); + #endif /* _ARCH_QEMU_H_ */