From: Bin Meng <bmeng.cn@gmail.com>
Date: Wed, 22 Jul 2015 08:21:12 +0000 (-0700)
Subject: x86: Allow cpu-x86 driver to be probed for UP
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c77b8912d86a08b57bab21982a865fbf2151f0af;p=project%2Fbcm63xx%2Fu-boot.git

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 b4e0fd9bc2..b9134cfef3 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -696,6 +696,15 @@ __weak int x86_init_cpus(void)
 #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;