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authorPatrick Rudolph <siro@das-labor.org>2017-11-20 11:57:01 +0100
committerFelix Held <felix-coreboot@felixheld.de>2018-07-28 16:00:42 +0000
commit74203de85185842f90ff1708b4f16445cc279688 (patch)
tree4ced98a0ea62d32dd8fb22686085b219f07e0bf4 /src/cpu
parent2a7be5bf3061fe8ccd5505f08489ea4671b61f20 (diff)
downloadcoreboot-74203de85185842f90ff1708b4f16445cc279688.tar.xz
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>
Diffstat (limited to 'src/cpu')
-rw-r--r--src/cpu/intel/model_206ax/Makefile.inc4
-rw-r--r--src/cpu/intel/model_206ax/common.c31
-rw-r--r--src/cpu/intel/model_206ax/model_206ax.h1
-rw-r--r--src/cpu/intel/model_206ax/model_206ax_init.c3
4 files changed, 39 insertions, 0 deletions
diff --git a/src/cpu/intel/model_206ax/Makefile.inc b/src/cpu/intel/model_206ax/Makefile.inc
index f6084ee202..2c1d961deb 100644
--- a/src/cpu/intel/model_206ax/Makefile.inc
+++ b/src/cpu/intel/model_206ax/Makefile.inc
@@ -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
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 <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;
+}
diff --git a/src/cpu/intel/model_206ax/model_206ax.h b/src/cpu/intel/model_206ax/model_206ax.h
index 962b8302eb..7cb4069049 100644
--- a/src/cpu/intel/model_206ax/model_206ax.h
+++ b/src/cpu/intel/model_206ax/model_206ax.h
@@ -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
diff --git a/src/cpu/intel/model_206ax/model_206ax_init.c b/src/cpu/intel/model_206ax/model_206ax_init.c
index 5c60ed77b5..4be3d87aa0 100644
--- a/src/cpu/intel/model_206ax/model_206ax_init.c
+++ b/src/cpu/intel/model_206ax/model_206ax_init.c
@@ -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();