| Aaron Durbin | df21440 | 2015-12-14 16:44:26 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright 2015 Google Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #include <soc/vr_config.h> |
| 18 | |
| 19 | /* Default values for domain configuration. PSI3 and PSI4 are disabled. */ |
| 20 | static const struct vr_config default_configs[NUM_VR_DOMAINS] = { |
| 21 | [VR_SYSTEM_AGENT] = { |
| 22 | .vr_config_enable = 1, |
| 23 | .psi1threshold = VR_CFG_AMP(20), |
| 24 | .psi2threshold = VR_CFG_AMP(4), |
| 25 | .psi3threshold = VR_CFG_AMP(1), |
| 26 | .psi3enable = 0, |
| 27 | .psi4enable = 0, |
| 28 | .imon_slope = 0x0, |
| 29 | .imon_offset = 0x0, |
| 30 | .icc_max = VR_CFG_AMP(7), |
| 31 | .voltage_limit = 1520, |
| 32 | }, |
| 33 | [VR_IA_CORE] = { |
| 34 | .vr_config_enable = 1, |
| 35 | .psi1threshold = VR_CFG_AMP(20), |
| 36 | .psi2threshold = VR_CFG_AMP(5), |
| 37 | .psi3threshold = VR_CFG_AMP(1), |
| 38 | .psi3enable = 0, |
| 39 | .psi4enable = 0, |
| 40 | .imon_slope = 0x0, |
| 41 | .imon_offset = 0x0, |
| 42 | .icc_max = VR_CFG_AMP(34), |
| 43 | .voltage_limit = 1520, |
| 44 | }, |
| 45 | [VR_RING] = { |
| 46 | .vr_config_enable = 1, |
| 47 | .psi1threshold = VR_CFG_AMP(20), |
| 48 | .psi2threshold = VR_CFG_AMP(5), |
| 49 | .psi3threshold = VR_CFG_AMP(1), |
| 50 | .psi3enable = 0, |
| 51 | .psi4enable = 0, |
| 52 | .imon_slope = 0x0, |
| 53 | .imon_offset = 0x0, |
| 54 | .icc_max = VR_CFG_AMP(34), |
| 55 | .voltage_limit = 1520, |
| 56 | }, |
| 57 | [VR_GT_UNSLICED] = { |
| 58 | .vr_config_enable = 1, |
| 59 | .psi1threshold = VR_CFG_AMP(20), |
| 60 | .psi2threshold = VR_CFG_AMP(5), |
| 61 | .psi3threshold = VR_CFG_AMP(1), |
| 62 | .psi3enable = 0, |
| 63 | .psi4enable = 0, |
| 64 | .imon_slope = 0x0, |
| 65 | .imon_offset = 0x0, |
| 66 | .icc_max = VR_CFG_AMP(35), |
| 67 | .voltage_limit = 1520, |
| 68 | }, |
| 69 | [VR_GT_SLICED] = { |
| 70 | .vr_config_enable = 1, |
| 71 | .psi1threshold = VR_CFG_AMP(20), |
| 72 | .psi2threshold = VR_CFG_AMP(5), |
| 73 | .psi3threshold = VR_CFG_AMP(1), |
| 74 | .psi3enable = 0, |
| 75 | .psi4enable = 0, |
| 76 | .imon_slope = 0x0, |
| 77 | .imon_offset = 0x0, |
| 78 | .icc_max = VR_CFG_AMP(35), |
| 79 | .voltage_limit = 1520, |
| 80 | }, |
| 81 | }; |
| 82 | |
| 83 | void fill_vr_domain_config(SILICON_INIT_UPD *params, int domain, |
| 84 | const struct vr_config *chip_cfg) |
| 85 | { |
| 86 | const struct vr_config *cfg; |
| 87 | |
| 88 | if (domain < 0 || domain >= NUM_VR_DOMAINS) |
| 89 | return; |
| 90 | |
| 91 | /* Use device tree override if requested. */ |
| 92 | if (chip_cfg->vr_config_enable) |
| 93 | cfg = chip_cfg; |
| 94 | else |
| 95 | cfg = &default_configs[domain]; |
| 96 | |
| 97 | params->VrConfigEnable[domain] = cfg->vr_config_enable; |
| 98 | params->Psi1Threshold[domain] = cfg->psi1threshold; |
| 99 | params->Psi2Threshold[domain] = cfg->psi2threshold; |
| 100 | params->Psi3Threshold[domain] = cfg->psi3threshold; |
| 101 | params->Psi3Enable[domain] = cfg->psi3enable; |
| 102 | params->Psi4Enable[domain] = cfg->psi4enable; |
| 103 | params->ImonSlope[domain] = cfg->imon_slope; |
| 104 | params->ImonOffset[domain] = cfg->imon_offset; |
| 105 | params->IccMax[domain] = cfg->icc_max; |
| 106 | params->VrVoltageLimit[domain] = cfg->voltage_limit; |
| 107 | } |