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coreboot-kgpe-d16/src/soc/intel/braswell/tsc_freq.c

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Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-05-06 00:07:29 +02:00
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google Inc.
Braswell: Add Braswell SOC support Add the files to support the Braswell SOC. BRANCH=none BUG=None TEST=Build for a Braswell platform Change-Id: I968da68733e57647d0a08e4040ff0378b4d59004 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10051 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-04-21 00:20:28 +02:00
* Copyright (C) 2015 Intel Corp.
Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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*
* 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 <cpu/x86/msr.h>
#include <cpu/x86/tsc.h>
Braswell: Update to end of June. Remove some CamelCase in acpi.c Add FSP PcdDvfsEnable configuration parameter. Add lpc_init and lpc_set_low_power routines. Remove Braswell reference to make code easier to port to another SOC. BRANCH=none BUG=None TEST=Build and run on cyan Change-Id: I5063215fc5d19b4a07f3161f76bf3d58e30f6f02 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10768 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-02 20:55:18 +02:00
#include <rules.h>
Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-05-06 00:07:29 +02:00
#include <soc/msr.h>
Braswell: Add Braswell SOC support Add the files to support the Braswell SOC. BRANCH=none BUG=None TEST=Build for a Braswell platform Change-Id: I968da68733e57647d0a08e4040ff0378b4d59004 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10051 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-04-21 00:20:28 +02:00
#include <console/console.h>
#if ENV_RAMSTAGE
#include <soc/ramstage.h>
#else
#include <soc/romstage.h>
#endif
#include <stdint.h>
Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-05-06 00:07:29 +02:00
soc/braswell: Fix P-state table Incorrect bus-core-ratio been used to generate P-state table Original-Reviewed-on: https://chromium-review.googlesource.com/290681 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Change-Id: I4a34ec80ff3f2ed46dc074c9f8fe06756db8b357 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/12731 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-08-05 13:31:55 +02:00
static const unsigned int cpu_bus_clk_freq_table[] = {
83333,
100000,
133333,
116666,
80000,
93333,
90000,
88900,
87500
};
unsigned int cpu_bus_freq_khz(void)
{
msr_t clk_info = rdmsr(MSR_BSEL_CR_OVERCLOCK_CONTROL);
src/soc: Add required space before opening parenthesis '(' Change-Id: Ifc47f103492a2cd6c818dfd64be971d34afbe0a4 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/16324 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-25 21:07:59 +02:00
if ((clk_info.lo & 0xF) < (sizeof(cpu_bus_clk_freq_table)/sizeof(unsigned int)))
soc/braswell: Fix P-state table Incorrect bus-core-ratio been used to generate P-state table Original-Reviewed-on: https://chromium-review.googlesource.com/290681 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Change-Id: I4a34ec80ff3f2ed46dc074c9f8fe06756db8b357 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/12731 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-08-05 13:31:55 +02:00
{
return(cpu_bus_clk_freq_table[clk_info.lo & 0xF]);
}
return 0;
}
Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-05-06 00:07:29 +02:00
unsigned long tsc_freq_mhz(void)
{
soc/braswell: Fix P-state table Incorrect bus-core-ratio been used to generate P-state table Original-Reviewed-on: https://chromium-review.googlesource.com/290681 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Change-Id: I4a34ec80ff3f2ed46dc074c9f8fe06756db8b357 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/12731 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-08-05 13:31:55 +02:00
msr_t platform_info;
unsigned int bclk_khz = cpu_bus_freq_khz();
if (!bclk_khz)
return 0;
Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-05-06 00:07:29 +02:00
soc/braswell: Fix P-state table Incorrect bus-core-ratio been used to generate P-state table Original-Reviewed-on: https://chromium-review.googlesource.com/290681 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Change-Id: I4a34ec80ff3f2ed46dc074c9f8fe06756db8b357 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/12731 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-08-05 13:31:55 +02:00
platform_info = rdmsr(MSR_PLATFORM_INFO);
return (bclk_khz * ((platform_info.lo >> 8) & 0xff)) / 1000;
Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-05-06 00:07:29 +02:00
}
Braswell: Update to end of June. Remove some CamelCase in acpi.c Add FSP PcdDvfsEnable configuration parameter. Add lpc_init and lpc_set_low_power routines. Remove Braswell reference to make code easier to port to another SOC. BRANCH=none BUG=None TEST=Build and run on cyan Change-Id: I5063215fc5d19b4a07f3161f76bf3d58e30f6f02 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10768 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-02 20:55:18 +02:00
#if !ENV_SMM
Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-05-06 00:07:29 +02:00
void set_max_freq(void)
{
msr_t perf_ctl;
msr_t msr;
/* Enable speed step. */
msr = rdmsr(MSR_IA32_MISC_ENABLES);
msr.lo |= (1 << 16);
wrmsr(MSR_IA32_MISC_ENABLES, msr);
soc/braswell: Set max frequency to be turbo frequency In set_max_freq, instead of using ratio from IA_CORE_RATIOS, using ratio from MSR_IACORE_TURBO_RATIOS Also, punit_init needs to be called before enabling this frequency. Original-Reviewed-on: https://chromium-review.googlesource.com/295268 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Tested-by: Hannah Williams <hannah.williams@intel.com> Change-Id: Iabdab9ec45f8eef0a105a5a05dbcdb997b6764b0 Signed-off-by: Hannah Williams <hannah.williams@intel.com> Reviewed-on: https://review.coreboot.org/12736 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Martin Roth <martinroth@google.com>
2015-08-24 02:24:43 +02:00
/* Enable Burst Mode */
msr = rdmsr(MSR_IA32_MISC_ENABLES);
msr.hi = 0;
wrmsr(MSR_IA32_MISC_ENABLES, msr);
Braswell: Add Braswell SOC support Add the files to support the Braswell SOC. BRANCH=none BUG=None TEST=Build for a Braswell platform Change-Id: I968da68733e57647d0a08e4040ff0378b4d59004 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10051 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-04-21 00:20:28 +02:00
/*
* Set guranteed ratio [21:16] from IACORE_RATIOS to bits [15:8] of
* the PERF_CTL.
*/
soc/braswell: Set max frequency to be turbo frequency In set_max_freq, instead of using ratio from IA_CORE_RATIOS, using ratio from MSR_IACORE_TURBO_RATIOS Also, punit_init needs to be called before enabling this frequency. Original-Reviewed-on: https://chromium-review.googlesource.com/295268 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Tested-by: Hannah Williams <hannah.williams@intel.com> Change-Id: Iabdab9ec45f8eef0a105a5a05dbcdb997b6764b0 Signed-off-by: Hannah Williams <hannah.williams@intel.com> Reviewed-on: https://review.coreboot.org/12736 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Martin Roth <martinroth@google.com>
2015-08-24 02:24:43 +02:00
msr = rdmsr(MSR_IACORE_TURBO_RATIOS);
Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-05-06 00:07:29 +02:00
perf_ctl.lo = (msr.lo & 0x3f0000) >> 8;
Braswell: Add Braswell SOC support Add the files to support the Braswell SOC. BRANCH=none BUG=None TEST=Build for a Braswell platform Change-Id: I968da68733e57647d0a08e4040ff0378b4d59004 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10051 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-04-21 00:20:28 +02:00
/*
* Set guranteed vid [21:16] from IACORE_VIDS to bits [7:0] of
* the PERF_CTL.
*/
soc/braswell: Set max frequency to be turbo frequency In set_max_freq, instead of using ratio from IA_CORE_RATIOS, using ratio from MSR_IACORE_TURBO_RATIOS Also, punit_init needs to be called before enabling this frequency. Original-Reviewed-on: https://chromium-review.googlesource.com/295268 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Tested-by: Hannah Williams <hannah.williams@intel.com> Change-Id: Iabdab9ec45f8eef0a105a5a05dbcdb997b6764b0 Signed-off-by: Hannah Williams <hannah.williams@intel.com> Reviewed-on: https://review.coreboot.org/12736 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Martin Roth <martinroth@google.com>
2015-08-24 02:24:43 +02:00
msr = rdmsr(MSR_IACORE_TURBO_VIDS);
Braswell: Use Baytrail as Comparison Base Add baytrail source for comparison with Braswell. BRANCH=none BUG=None TEST=None Change-Id: I5170addf41676d95a3daf070a32bcee085f8156d Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-05-06 00:07:29 +02:00
perf_ctl.lo |= (msr.lo & 0x7f0000) >> 16;
perf_ctl.hi = 0;
wrmsr(MSR_IA32_PERF_CTL, perf_ctl);
}
Braswell: Update to end of June. Remove some CamelCase in acpi.c Add FSP PcdDvfsEnable configuration parameter. Add lpc_init and lpc_set_low_power routines. Remove Braswell reference to make code easier to port to another SOC. BRANCH=none BUG=None TEST=Build and run on cyan Change-Id: I5063215fc5d19b4a07f3161f76bf3d58e30f6f02 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: http://review.coreboot.org/10768 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-02 20:55:18 +02:00
#endif /* ENV_SMM */
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