x86: Add debugging when cpu_common_init() fails

Add a debug() at this point to help figure out what is wrong.

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

diff --git a/arch/x86/cpu/ivybridge/cpu.c b/arch/x86/cpu/ivybridge/cpu.c
index 0f9390517ff92b0a6afb3983fffcaf54af52e60f..85e361a58f07a72ba70842aa5f24622f0dce4255 100644 (file)
--- a/arch/x86/cpu/ivybridge/cpu.c
+++ b/arch/x86/cpu/ivybridge/cpu.c
@@ -146,8 +146,10 @@ int print_cpuinfo(void)
        }
 
        ret = cpu_common_init();
-       if (ret)
+       if (ret) {
+               debug("%s: cpu_common_init() failed\n", __func__);
                return ret;
+       }
 
        /* Check PM1_STS[15] to see if we are waking from Sx */
        pm1_sts = inw(DEFAULT_PMBASE + PM1_STS);