coreboot-kgpe-d16/src/mainboard/pcengines/apu2/OemCustomize.c

/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */

#include <AGESA.h>
#include <northbridge/amd/agesa/state_machine.h>

static const PCIe_PORT_DESCRIPTOR PortList[] = {
	{
		0,
		PCIE_ENGINE_DATA_INITIALIZER(PciePortEngine, 3, 3),
		PCIE_PORT_DATA_INITIALIZER_V2(PortEnabled, ChannelTypeExt6db, 2, 5,
				HotplugDisabled,
				PcieGenMaxSupported,
				PcieGenMaxSupported,
				AspmL0sL1,
				0x01,
				0)
	},
	/* Initialize Port descriptor (PCIe port, Lanes 1, PCI Device Number 2, ...) */
	{
		0,
		PCIE_ENGINE_DATA_INITIALIZER(PciePortEngine, 2, 2),
		PCIE_PORT_DATA_INITIALIZER_V2(PortEnabled, ChannelTypeExt6db, 2, 4,
				HotplugDisabled,
				PcieGenMaxSupported,
				PcieGenMaxSupported,
				AspmL0sL1,
				0x02,
				0)
	},
	/* Initialize Port descriptor (PCIe port, Lanes 2, PCI Device Number 2, ...) */
	{
		0,
		PCIE_ENGINE_DATA_INITIALIZER(PciePortEngine, 1, 1),
		PCIE_PORT_DATA_INITIALIZER_V2(PortEnabled, ChannelTypeExt6db, 2, 3,
				HotplugDisabled,
				PcieGenMaxSupported,
				PcieGenMaxSupported,
				AspmL0sL1,
				0x03,
				0)
	},
	/* Initialize Port descriptor (PCIe port, Lanes 3, PCI Device Number 2, ...) */
	{
		0,
		PCIE_ENGINE_DATA_INITIALIZER(PciePortEngine, 0, 0),
		PCIE_PORT_DATA_INITIALIZER_V2(PortEnabled, ChannelTypeExt6db, 2, 2,
				HotplugDisabled,
				PcieGenMaxSupported,
				PcieGenMaxSupported,
				AspmL0sL1,
				0x04,
				0)
	},
	/* Initialize Port descriptor (PCIe port, Lanes 4-7, PCI Device Number 4, ...) */
	{
		DESCRIPTOR_TERMINATE_LIST,
		PCIE_ENGINE_DATA_INITIALIZER(PciePortEngine, 4, 7),
		PCIE_PORT_DATA_INITIALIZER_V2(PortEnabled, ChannelTypeExt6db, 2, 1,
				HotplugDisabled,
				PcieGenMaxSupported,
				PcieGenMaxSupported,
				AspmL0sL1,
				0x05,
				0)
	}
};

static const PCIe_COMPLEX_DESCRIPTOR PcieComplex = {
	.Flags        = DESCRIPTOR_TERMINATE_LIST,
	.SocketId     = 0,
	.PciePortList = PortList,
	.DdiLinkList  = NULL,
};

void board_BeforeInitEarly(struct sysinfo *cb, AMD_EARLY_PARAMS *InitEarly)
{
	InitEarly->GnbConfig.PcieComplexList = &PcieComplex;
	InitEarly->PlatformConfig.CStateMode = CStateModeC6;
	InitEarly->PlatformConfig.CpbMode = CpbModeAuto;
}