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/* SPDX-License-Identifier: GPL-2.0-only */
#include <soc/ramstage.h>
#include <carrier/gpio.h>
#include <stddef.h>
void mainboard_silicon_init_params(FSP_S_CONFIG *silconfig)
{
carrier_gpio_configure();
/*
* CPU Power Management Configuration correspond to the BIOS Setup menu settings
* in the AMI UEFI v112.
* TODO: move these FSP options to device tree
*/
silconfig->EnableCx = 1; /* Enable CPU power states */
silconfig->C1e = 1; /* enable Enhanced C-states */
/*
* Attention! Do not change PkgCStateLimit! This causes spikes in the power
* consumption of the SoC when the system comes out of power saving mode, and
* voltage sagging at the output of DC-DC converters on the COMe module. In the
* AMI BIOS Setup shows this parameter, but does not allow changing it.
*/
silconfig->PkgCStateLimit = 0; /* Max Pkg Cstate : PkgC0C1 */
silconfig->MaxCoreCState = 3; /* Max Core C-State : C6 */
silconfig->CStateAutoDemotion = 0; /* Disable C1 and C3 Auto-demotion */
silconfig->CStateUnDemotion = 0; /* Disable C1 and C3 Un-demotion */
silconfig->PkgCStateDemotion = 1; /* enable package Cstate demotion */
silconfig->PkgCStateUnDemotion = 1; /* enable package Cstate undemotion */
silconfig->PmSupport = 1; /* GT PM Support */
silconfig->EnableRenderStandby = 1; /* enable render standby */
silconfig->LPSS_S0ixEnable = 1; /* LPSS IOSF PMCTL S0ix Enable */
silconfig->InitS3Cpu = 1; /* initialize CPU during S3 resume */
/* Override High Precision Timer options */
silconfig->HpetBdfValid = 1;
silconfig->HpetBusNumber = 0xFA;
silconfig->HpetDeviceNumber = 0x0F;
silconfig->HpetFunctionNumber = 0;
/* Override APIC options */
silconfig->IoApicId = 1;
silconfig->IoApicBdfValid = 1;
silconfig->IoApicBusNumber = 0xFA;
silconfig->IoApicDeviceNumber = 0x1F;
silconfig->IoApicFunctionNumber = 0;
}
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