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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 <southbridge/amd/cimx/sb800/gpio_oem.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)
{
AGESA_STATUS Status;
UINTN FcnData;
MEM_DATA_STRUCT *MemData;
UINT32 AcpiMmioAddr;
UINT32 GpioMmioAddr;
UINT8 Data8;
UINT8 TempData8;
FcnData = Data;
MemData = ConfigPtr;
Status = AGESA_SUCCESS;
AcpiMmioAddr = AMD_SB_ACPI_MMIO_ADDR;
GpioMmioAddr = AcpiMmioAddr + GPIO_BASE;
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
Data8 &= ~BIT5;
TempData8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
TempData8 &= 0x03;
TempData8 |= Data8;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, TempData8);
Data8 |= BIT2+BIT3;
Data8 &= ~BIT4;
TempData8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
TempData8 &= 0x23;
TempData8 |= Data8;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, TempData8);
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
Data8 &= ~BIT5;
TempData8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
TempData8 &= 0x03;
TempData8 |= Data8;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, TempData8);
Data8 |= BIT2+BIT3;
Data8 &= ~BIT4;
TempData8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
TempData8 &= 0x23;
TempData8 |= Data8;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, TempData8);
switch (MemData->ParameterListPtr->DDR3Voltage) {
case VOLT1_35:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
Data8 &= ~(UINT8)BIT6;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8);
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
Data8 |= (UINT8)BIT6;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
break;
case VOLT1_25:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
Data8 &= ~(UINT8)BIT6;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8);
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
Data8 &= ~(UINT8)BIT6;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
break;
case VOLT1_5:
default:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
Data8 |= (UINT8)BIT6;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8);
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
Data8 &= ~(UINT8)BIT6;
Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
}
return Status;
}
/* 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;
FcnData = Data;
ResetInfo = ConfigPtr;
AcpiMmioAddr = AMD_SB_ACPI_MMIO_ADDR;
GpioMmioAddr = AcpiMmioAddr + GPIO_BASE;
Status = AGESA_UNSUPPORTED;
switch (ResetInfo->ResetId) {
case 4:
switch (ResetInfo->ResetControl) {
case AssertSlotReset:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG21);
Data8 &= ~(UINT8)BIT6;
/* MXM_GPIO0. GPIO21 */
Write64Mem8(GpioMmioAddr+SB_GPIO_REG21, Data8);
Status = AGESA_SUCCESS;
break;
case DeassertSlotReset:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG21);
Data8 |= BIT6;
/* MXM_GPIO0. GPIO21 */
Write64Mem8(GpioMmioAddr+SB_GPIO_REG21, Data8);
Status = AGESA_SUCCESS;
break;
}
break;
case 6:
switch (ResetInfo->ResetControl) {
case AssertSlotReset:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG25);
Data8 &= ~(UINT8)BIT6;
/* PCIE_RST#_LAN, GPIO25 */
Write64Mem8(GpioMmioAddr+SB_GPIO_REG25, Data8);
Status = AGESA_SUCCESS;
break;
case DeassertSlotReset:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG25);
Data8 |= BIT6;
/* PCIE_RST#_LAN, GPIO25 */
Write64Mem8(GpioMmioAddr+SB_GPIO_REG25, Data8);
Status = AGESA_SUCCESS;
break;
}
break;
case 7:
switch (ResetInfo->ResetControl) {
case AssertSlotReset:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG02);
Data8 &= ~(UINT8)BIT6;
/* MPCIE_RST0, GPIO02 */
Write64Mem8(GpioMmioAddr+SB_GPIO_REG02, Data8);
Status = AGESA_SUCCESS;
break;
case DeassertSlotReset:
Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG02);
Data8 |= BIT6;
/* MPCIE_RST0, GPIO02 */
Write64Mem8(GpioMmioAddr+SB_GPIO_REG02, Data8);
Status = AGESA_SUCCESS;
break;
}
break;
}
return Status;
}
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