x86: Allow cpu-x86 driver to be probed for UP
Currently cpu-x86 driver is probed only for SMP. We add the same
support for UP when there is only one cpu node in the deive tree.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index b4e0fd9..b9134cf 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -696,6 +696,15 @@
#ifdef CONFIG_SMP
debug("Init additional CPUs\n");
x86_mp_init();
+#else
+ struct udevice *dev;
+
+ /*
+ * This causes the cpu-x86 driver to be probed.
+ * We don't check return value here as we want to allow boards
+ * which have not been converted to use cpu uclass driver to boot.
+ */
+ uclass_first_device(UCLASS_CPU, &dev);
#endif
return 0;