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 <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/22530
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Patrick Rudolph
2017-11-20 11:57:01 +01:00
committed by Felix Held
parent 2a7be5bf30
commit 74203de851
12 changed files with 97 additions and 16 deletions

View File

@ -5,6 +5,10 @@ subdirs-y += ../common
ramstage-y += acpi.c
ramstage-y += common.c
romstage-y += common.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += common.c
ramstage-y += tsc_freq.c
romstage-y += tsc_freq.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += tsc_freq.c

View File

@ -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 <types.h>
#include <cpu/x86/msr.h>
#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;
}

View File

@ -123,5 +123,6 @@ void set_power_limits(u8 power_limit_1_time);
int cpu_config_tdp_levels(void);
void smm_relocate(void);
#endif
int get_platform_id(void);
#endif

View File

@ -514,6 +514,9 @@ static void model_206ax_init(struct device *cpu)
fill_processor_name(processor_name);
printk(BIOS_INFO, "CPU: %s.\n", processor_name);
/* Print platform ID */
printk(BIOS_INFO, "CPU: platform id %x\n", get_platform_id());
/* Setup MTRRs based on physical address size */
x86_setup_mtrrs_with_detect();
x86_mtrr_check();