From 74203de85185842f90ff1708b4f16445cc279688 Mon Sep 17 00:00:00 2001 From: Patrick Rudolph Date: Mon, 20 Nov 2017 11:57:01 +0100 Subject: intel/sandybridge: Don't hardcode platform type * Add a function to return CPU platform ID bits * Add a function to return platform type ** Platform id is 4 on Lenovo T430 (mobile) ** Platform id is 1 on HP8200 (desktop) * Use introduced method to handle platform specific code * Use enum for platform type * Report platform ID Change-Id: Ifbfc64c8cec98782d6efc987a4d4d5aeab1402ba Signed-off-by: Patrick Rudolph Reviewed-on: https://review.coreboot.org/22530 Tested-by: build bot (Jenkins) Reviewed-by: Felix Held --- src/cpu/intel/model_206ax/common.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 src/cpu/intel/model_206ax/common.c (limited to 'src/cpu/intel/model_206ax/common.c') diff --git a/src/cpu/intel/model_206ax/common.c b/src/cpu/intel/model_206ax/common.c new file mode 100644 index 0000000000..9775efb30d --- /dev/null +++ b/src/cpu/intel/model_206ax/common.c @@ -0,0 +1,31 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2009 coresystems GmbH + * Copyright (C) 2011 The Chromium OS Authors. All rights reserved. + * + * 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. + */ + +#include +#include +#include "model_206ax.h" + +#define IA32_PLATFORM_ID 0x17 + +int get_platform_id(void) +{ + msr_t msr; + + msr = rdmsr(IA32_PLATFORM_ID); + /* Read Platform Id Bits 52:50 */ + return (msr.hi >> 18) & 0x7; +} -- cgit v1.2.3