x86: Use CR0 constants in CPU init

We should use these constants where possible.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index b9134cfef3747602ea8cee9cc4964afae8511abd..d233a459289140adc561d259117e8afad1d4ddbb 100644 (file)
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -456,7 +456,7 @@ void x86_full_reset(void)
 
 int dcache_status(void)
 {
-       return !(read_cr0() & 0x40000000);
+       return !(read_cr0() & X86_CR0_CD);
 }
 
 /* Define these functions to allow ehch-hcd to function */