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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <AGESA.h>
#include <amdlib.h>
#include <amdblocks/acpimmio.h>
#include <northbridge/amd/agesa/BiosCallOuts.h>
#include <SB800.h>
#include <stdlib.h>
static AGESA_STATUS board_BeforeDramInit (UINT32 Func, UINTN Data, VOID *ConfigPtr);
static AGESA_STATUS board_GnbPcieSlotReset (UINT32 Func, UINTN Data, VOID *ConfigPtr);
const BIOS_CALLOUT_STRUCT BiosCallouts[] =
{
{AGESA_DO_RESET, agesa_Reset },
{AGESA_READ_SPD, agesa_ReadSpd },
{AGESA_READ_SPD_RECOVERY, agesa_NoopUnsupported },
{AGESA_RUNFUNC_ONAP, agesa_RunFuncOnAp },
{AGESA_GNB_PCIE_SLOT_RESET, board_GnbPcieSlotReset },
{AGESA_HOOKBEFORE_DRAM_INIT, board_BeforeDramInit },
{AGESA_HOOKBEFORE_DRAM_INIT_RECOVERY, agesa_NoopSuccess },
{AGESA_HOOKBEFORE_DQS_TRAINING, agesa_NoopSuccess },
{AGESA_HOOKBEFORE_EXIT_SELF_REF, agesa_NoopSuccess },
};
const int BiosCalloutsLen = ARRAY_SIZE(BiosCallouts);
/* Call the host environment interface to provide a user hook opportunity. */
static AGESA_STATUS board_BeforeDramInit (UINT32 Func, UINTN Data, VOID *ConfigPtr)
{
// Unlike e.g. AMD Inagua, Persimmon is unable to vary the RAM voltage.
// Make sure the right speed settings are selected.
((MEM_DATA_STRUCT*)ConfigPtr)->ParameterListPtr->DDR3Voltage = VOLT1_5;
return AGESA_SUCCESS;
}
/* PCIE slot reset control */
static AGESA_STATUS board_GnbPcieSlotReset (UINT32 Func, UINTN Data, VOID *ConfigPtr)
{
AGESA_STATUS Status;
UINTN FcnData;
PCIe_SLOT_RESET_INFO *ResetInfo;
UINT32 GpioMmioAddr;
UINT32 AcpiMmioAddr;
UINT8 Data8;
UINT16 Data16;
FcnData = Data;
ResetInfo = ConfigPtr;
// Get SB800 MMIO Base (AcpiMmioAddr)
Data8 = pm_io_read8(0x27);
Data16=Data8<<8;
Data8 = pm_io_read8(0x26);
Data16|=Data8;
AcpiMmioAddr = (UINT32)Data16 << 16;
Status = AGESA_UNSUPPORTED;
GpioMmioAddr = AcpiMmioAddr + GPIO_BASE;
switch (ResetInfo->ResetId)
{
case 46: // GPIO50 = SBGPIO_PCIE_RST# affects LAN0, LAN1, PCIe slot
switch (ResetInfo->ResetControl) {
case AssertSlotReset:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG50);
Data8 &= ~(UINT8)BIT6;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG50, Data8);
Status = AGESA_SUCCESS;
break;
case DeassertSlotReset:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG50);
Data8 |= BIT6;
Write64Mem8 (GpioMmioAddr+SB_GPIO_REG50, Data8);
Status = AGESA_SUCCESS;
break;
}
break;
}
return Status;
}
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