x86: ivybridge: Check BIST value on boot
The built-in self test value should be checked before we continue booting.
Refuse to continue if there is something wrong.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/ivybridge/cpu.c b/arch/x86/cpu/ivybridge/cpu.c
index ab708dd..6a242d7 100644
--- a/arch/x86/cpu/ivybridge/cpu.c
+++ b/arch/x86/cpu/ivybridge/cpu.c
@@ -179,10 +179,26 @@
return 0;
}
+static int report_bist_failure(void)
+{
+ if (gd->arch.bist != 0) {
+ printf("BIST failed: %08x\n", gd->arch.bist);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
int print_cpuinfo(void)
{
char processor_name[CPU_MAX_NAME_LEN];
const char *name;
+ int ret;
+
+ /* Halt if there was a built in self test failure */
+ ret = report_bist_failure();
+ if (ret)
+ return ret;
/* Print processor name */
name = cpu_get_name(processor_name);