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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
* Copyright (C) 2015 Intel Corporation.
*
* 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.
*/
/* VR Settings for each domain */
#ifndef _SOC_VR_CONFIG_H_
#define _SOC_VR_CONFIG_H_
#if CONFIG(PLATFORM_USES_FSP1_1)
#include <fsp/soc_binding.h>
#else
#include <fsp/api.h>
#endif
struct vr_config {
/*
* The below settings will take effect when this is set to 1
* for that domain.
*/
int vr_config_enable;
/* Power State X current cutoff in 1/4 Amp increments
* Range is 0-128A
*/
int psi1threshold;
int psi2threshold;
int psi3threshold;
/* Enable power state 3/4 for different domains */
int psi3enable;
int psi4enable;
/*
* Imon slope correction. Specified in 1/100 increment
* values. Range is 0-200. 125 = 1.25
*/
int imon_slope;
/*
* Imon offset correction. Units 1/4, Range 0-255.
* Value of 100 = 100/4 = 25 offset.
*/
int imon_offset;
/* VR Icc Max limit. 0-255A in 1/4 A units. 400 = 100A */
int icc_max;
/* VR Voltage Limit. Range is 0-7999mV */
int voltage_limit;
/* AC and DC Loadline in 1/100 mOhms. Range is 0-6249 */
int ac_loadline;
int dc_loadline;
};
#define VR_CFG_AMP(i) ((i) * 4)
#define VR_CFG_MOHMS(i) (uint16_t)((i) * 100)
#if CONFIG(PLATFORM_USES_FSP1_1)
/* VrConfig Settings for 5 domains
* 0 = System Agent, 1 = IA Core, 2 = Ring,
* 3 = GT unsliced, 4 = GT sliced
*/
enum vr_domain {
VR_SYSTEM_AGENT,
VR_IA_CORE,
VR_RING,
VR_GT_UNSLICED,
VR_GT_SLICED,
NUM_VR_DOMAINS
};
#define VR_CFG_ALL_DOMAINS_ICC(sa, ia, gt_unsl, gt_sl) \
{ \
[VR_SYSTEM_AGENT] = VR_CFG_AMP(sa), \
[VR_IA_CORE] = VR_CFG_AMP(ia), \
[VR_RING] = VR_CFG_AMP(0), \
[VR_GT_UNSLICED] = VR_CFG_AMP(gt_unsl), \
[VR_GT_SLICED] = VR_CFG_AMP(gt_sl), \
}
#else
/* VrConfig Settings for 4 domains
* 0 = System Agent, 1 = IA Core,
* 2 = GT unsliced, 3 = GT sliced
*/
enum vr_domain {
VR_SYSTEM_AGENT,
VR_IA_CORE,
VR_GT_UNSLICED,
VR_GT_SLICED,
NUM_VR_DOMAINS
};
#define VR_CFG_ALL_DOMAINS_ICC(sa, ia, gt_unsl, gt_sl) \
{ \
[VR_SYSTEM_AGENT] = VR_CFG_AMP(sa), \
[VR_IA_CORE] = VR_CFG_AMP(ia), \
[VR_GT_UNSLICED] = VR_CFG_AMP(gt_unsl), \
[VR_GT_SLICED] = VR_CFG_AMP(gt_sl), \
}
#endif
#define VR_CFG_ALL_DOMAINS_LOADLINE(sa, ia, gt_unsl, gt_sl) \
{ \
[VR_SYSTEM_AGENT] = VR_CFG_MOHMS(sa), \
[VR_IA_CORE] = VR_CFG_MOHMS(ia), \
[VR_GT_UNSLICED] = VR_CFG_MOHMS(gt_unsl), \
[VR_GT_SLICED] = VR_CFG_MOHMS(gt_sl), \
}
void fill_vr_domain_config(void *params,
int domain, const struct vr_config *cfg);
#endif
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