broadwell: Fix some errors in selftest

1. Fixed some errors in selftest compare to reference.
2. Some WA steps for xhci in sleep trap is only for lpt.

BUG=chrome-os-partner:28234
TEST=compile ok, run selftest on auron to verify
     boot to OS
BRANCH=None
Signed-off-by: Kane Chen <kane.chen@intel.com>

Original-Change-Id: Iaccb087581d5f51453614246bf80132fcb414131
Original-Reviewed-on: https://chromium-review.googlesource.com/215646
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Original-Commit-Queue: Kane Chen <kane.chen@intel.com>
Original-Tested-by: Kane Chen <kane.chen@intel.com>
(cherry picked from commit 97761b4ad3073fff89aabce3ef4f763383ca5cad)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I2b1d5be4f8a13eb00009a36a199520cd35a67abf
Reviewed-on: http://review.coreboot.org/8971
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/src/soc/intel/broadwell/cpu_info.c b/src/soc/intel/broadwell/cpu_info.c
new file mode 100644
index 0000000000..a13ca94d42
--- /dev/null
+++ b/src/soc/intel/broadwell/cpu_info.c
@@ -0,0 +1,52 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <cpu/cpu.h>
+#include <cpu/x86/msr.h>
+#include <broadwell/cpu.h>
+#include <broadwell/msr.h>
+#include <broadwell/systemagent.h>
+
+u32 cpu_family_model(void)
+{
+	return cpuid_eax(1) & 0x0fff0ff0;
+}
+
+u32 cpu_stepping(void)
+{
+	return cpuid_eax(1) & 0xf;
+}
+
+/* Dynamically determine if the part is ULT. */
+int cpu_is_ult(void)
+{
+	static int ult = -1;
+
+	if (ult < 0) {
+		u32 fm = cpu_family_model();
+		if (fm == BROADWELL_FAMILY_ULT || fm == HASWELL_FAMILY_ULT)
+			ult = 1;
+		else
+			ult = 0;
+	}
+
+	return ult;
+}