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-rw-r--r--src/soc/intel/skylake/Makefile.inc1
-rw-r--r--src/soc/intel/skylake/chip.c24
-rw-r--r--src/soc/intel/skylake/include/soc/vr_config.h7
-rw-r--r--src/soc/intel/skylake/vr_config.c107
4 files changed, 117 insertions, 22 deletions
diff --git a/src/soc/intel/skylake/Makefile.inc b/src/soc/intel/skylake/Makefile.inc
index 9c578c56c1..32076e74ab 100644
--- a/src/soc/intel/skylake/Makefile.inc
+++ b/src/soc/intel/skylake/Makefile.inc
@@ -58,6 +58,7 @@ ramstage-y += systemagent.c
ramstage-y += tsc_freq.c
ramstage-y += uart.c
ramstage-$(CONFIG_UART_DEBUG) += uart_debug.c
+ramstage-y += vr_config.c
ramstage-y += xhci.c
smm-y += cpu_info.c
diff --git a/src/soc/intel/skylake/chip.c b/src/soc/intel/skylake/chip.c
index f4dc4a729f..b6485f7d94 100644
--- a/src/soc/intel/skylake/chip.c
+++ b/src/soc/intel/skylake/chip.c
@@ -359,28 +359,8 @@ void soc_silicon_init_params(SILICON_INIT_UPD *params)
else
params->PsfUnlock = 0;
- for (i = 0; i < ARRAY_SIZE(config->domain_vr_config); i++) {
- params->VrConfigEnable[i] =
- config->domain_vr_config[i].vr_config_enable;
- params->Psi1Threshold[i] =
- config->domain_vr_config[i].psi1threshold;
- params->Psi2Threshold[i] =
- config->domain_vr_config[i].psi2threshold;
- params->Psi3Threshold[i] =
- config->domain_vr_config[i].psi3threshold;
- params->Psi3Enable[i] =
- config->domain_vr_config[i].psi3enable;
- params->Psi4Enable[i] =
- config->domain_vr_config[i].psi4enable;
- params->ImonSlope[i] =
- config->domain_vr_config[i].imon_slope;
- params->ImonOffset[i] =
- config->domain_vr_config[i].imon_offset;
- params->IccMax[i] =
- config->domain_vr_config[i].icc_max;
- params->VrVoltageLimit[i] =
- config->domain_vr_config[i].voltage_limit;
- }
+ for (i = 0; i < ARRAY_SIZE(config->domain_vr_config); i++)
+ fill_vr_domain_config(params, i, &config->domain_vr_config[i]);
/* Show SPI controller if enabled in devicetree.cb */
dev = dev_find_slot(0, PCH_DEVFN_SPI);
diff --git a/src/soc/intel/skylake/include/soc/vr_config.h b/src/soc/intel/skylake/include/soc/vr_config.h
index 926ddf1a16..204b848a57 100644
--- a/src/soc/intel/skylake/include/soc/vr_config.h
+++ b/src/soc/intel/skylake/include/soc/vr_config.h
@@ -23,6 +23,8 @@
#ifndef _SOC_VR_CONFIG_H_
#define _SOC_VR_CONFIG_H_
+#include <fsp/soc_binding.h>
+
struct vr_config {
/*
@@ -61,6 +63,8 @@ struct vr_config {
int voltage_limit;
};
+#define VR_CFG_AMP(i) ((i) * 4)
+
/* VrConfig Settings for 5 domains
* 0 = System Agent, 1 = IA Core, 2 = Ring,
* 3 = GT unsliced, 4 = GT sliced
@@ -74,4 +78,7 @@ enum vr_domain{
NUM_VR_DOMAINS
};
+void fill_vr_domain_config(SILICON_INIT_UPD *params, int domain,
+ const struct vr_config *cfg);
+
#endif
diff --git a/src/soc/intel/skylake/vr_config.c b/src/soc/intel/skylake/vr_config.c
new file mode 100644
index 0000000000..40223e32cd
--- /dev/null
+++ b/src/soc/intel/skylake/vr_config.c
@@ -0,0 +1,107 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 Google Inc.
+ *
+ * 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 <soc/vr_config.h>
+
+/* Default values for domain configuration. PSI3 and PSI4 are disabled. */
+static const struct vr_config default_configs[NUM_VR_DOMAINS] = {
+ [VR_SYSTEM_AGENT] = {
+ .vr_config_enable = 1,
+ .psi1threshold = VR_CFG_AMP(20),
+ .psi2threshold = VR_CFG_AMP(4),
+ .psi3threshold = VR_CFG_AMP(1),
+ .psi3enable = 0,
+ .psi4enable = 0,
+ .imon_slope = 0x0,
+ .imon_offset = 0x0,
+ .icc_max = VR_CFG_AMP(7),
+ .voltage_limit = 1520,
+ },
+ [VR_IA_CORE] = {
+ .vr_config_enable = 1,
+ .psi1threshold = VR_CFG_AMP(20),
+ .psi2threshold = VR_CFG_AMP(5),
+ .psi3threshold = VR_CFG_AMP(1),
+ .psi3enable = 0,
+ .psi4enable = 0,
+ .imon_slope = 0x0,
+ .imon_offset = 0x0,
+ .icc_max = VR_CFG_AMP(34),
+ .voltage_limit = 1520,
+ },
+ [VR_RING] = {
+ .vr_config_enable = 1,
+ .psi1threshold = VR_CFG_AMP(20),
+ .psi2threshold = VR_CFG_AMP(5),
+ .psi3threshold = VR_CFG_AMP(1),
+ .psi3enable = 0,
+ .psi4enable = 0,
+ .imon_slope = 0x0,
+ .imon_offset = 0x0,
+ .icc_max = VR_CFG_AMP(34),
+ .voltage_limit = 1520,
+ },
+ [VR_GT_UNSLICED] = {
+ .vr_config_enable = 1,
+ .psi1threshold = VR_CFG_AMP(20),
+ .psi2threshold = VR_CFG_AMP(5),
+ .psi3threshold = VR_CFG_AMP(1),
+ .psi3enable = 0,
+ .psi4enable = 0,
+ .imon_slope = 0x0,
+ .imon_offset = 0x0,
+ .icc_max = VR_CFG_AMP(35),
+ .voltage_limit = 1520,
+ },
+ [VR_GT_SLICED] = {
+ .vr_config_enable = 1,
+ .psi1threshold = VR_CFG_AMP(20),
+ .psi2threshold = VR_CFG_AMP(5),
+ .psi3threshold = VR_CFG_AMP(1),
+ .psi3enable = 0,
+ .psi4enable = 0,
+ .imon_slope = 0x0,
+ .imon_offset = 0x0,
+ .icc_max = VR_CFG_AMP(35),
+ .voltage_limit = 1520,
+ },
+};
+
+void fill_vr_domain_config(SILICON_INIT_UPD *params, int domain,
+ const struct vr_config *chip_cfg)
+{
+ const struct vr_config *cfg;
+
+ if (domain < 0 || domain >= NUM_VR_DOMAINS)
+ return;
+
+ /* Use device tree override if requested. */
+ if (chip_cfg->vr_config_enable)
+ cfg = chip_cfg;
+ else
+ cfg = &default_configs[domain];
+
+ params->VrConfigEnable[domain] = cfg->vr_config_enable;
+ params->Psi1Threshold[domain] = cfg->psi1threshold;
+ params->Psi2Threshold[domain] = cfg->psi2threshold;
+ params->Psi3Threshold[domain] = cfg->psi3threshold;
+ params->Psi3Enable[domain] = cfg->psi3enable;
+ params->Psi4Enable[domain] = cfg->psi4enable;
+ params->ImonSlope[domain] = cfg->imon_slope;
+ params->ImonOffset[domain] = cfg->imon_offset;
+ params->IccMax[domain] = cfg->icc_max;
+ params->VrVoltageLimit[domain] = cfg->voltage_limit;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 17:08:02 +0000