/** @file
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Platform Hooks file
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@copyright
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Copyright 1999 - 2021 Intel Corporation. <BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Base.h>
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#include <Library/IoLib.h>
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#include <Library/PciLib.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Include/SioRegs.h>
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UINT8
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IsSimPlatform (VOID)
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{
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return 0;
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}
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/**
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Read Aspeed AHB register.
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@param RegIndex: register index of Aspeed.
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@retval value of register.
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**/
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UINT32
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ReadAHBDword (
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UINT32 RegIndex
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)
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{
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UINT8 bValue;
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UINT32 rdValue = 0;
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, REG_LOGICAL_DEVICE);
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IoWrite8 (0xED, 0);//short delay.
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IoWrite8 (ASPEED2500_SIO_DATA_PORT, ASPEED2500_SIO_SMI);
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IoWrite8 (0xED, 0);//short delay.
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0x30);
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IoWrite8 (0xED, 0);//short delay.
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IoWrite8 (ASPEED2500_SIO_DATA_PORT, 1);
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IoWrite8 (0xED, 0);//short delay.
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xf8);
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bValue = IoRead8(ASPEED2500_SIO_DATA_PORT);
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bValue &= 0xfc;
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bValue |= 2; // 4 byte window.
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IoWrite8 (ASPEED2500_SIO_DATA_PORT, bValue);
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IoWrite8 (0xED, 0);//short delay.
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xf0);
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IoWrite8 (0xED, 0);//short delay.
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IoWrite8 (ASPEED2500_SIO_DATA_PORT, (UINT8)((RegIndex >> 24)& 0xff));
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xf1);
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IoWrite8 (0xED, 0);//short delay.
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IoWrite8 (ASPEED2500_SIO_DATA_PORT, (UINT8)((RegIndex >> 16)& 0xff));
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xf2);
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IoWrite8 (0xED, 0);//short delay.
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IoWrite8 (ASPEED2500_SIO_DATA_PORT, (UINT8)((RegIndex >> 8) & 0xff));
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xf3);
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IoWrite8 (0xED, 0);//short delay.
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IoWrite8 (ASPEED2500_SIO_DATA_PORT, (UINT8)((RegIndex )& 0xff));
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// trigger read
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xfe);
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IoRead8 (ASPEED2500_SIO_DATA_PORT);
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xf4);
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rdValue += IoRead8 (ASPEED2500_SIO_DATA_PORT);
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rdValue <<= 8;
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xf5);
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rdValue += IoRead8 (ASPEED2500_SIO_DATA_PORT);
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rdValue <<= 8;
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xf6);
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rdValue += IoRead8 (ASPEED2500_SIO_DATA_PORT);
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rdValue <<= 8;
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, 0xf7);
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rdValue += IoRead8 (ASPEED2500_SIO_DATA_PORT);
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return rdValue;
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}
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/**
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* Checks for the presence of ASPEED SIO
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* @return TRUE if its present. FALSE if not.
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*/
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BOOLEAN
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IsAspeedPresent (
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VOID
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)
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{
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BOOLEAN PresenceStatus = FALSE;
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UINT32 DeviceID;
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//
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//ASPEED AST2500/AST2600
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//
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, ASPEED2500_SIO_UNLOCK);
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, ASPEED2500_SIO_UNLOCK);
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, REG_LOGICAL_DEVICE);
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IoWrite8 (ASPEED2500_SIO_DATA_PORT, ASPEED2500_SIO_UART1);
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if (IoRead8 (ASPEED2500_SIO_DATA_PORT) == ASPEED2500_SIO_UART1) {
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//
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//right now, maybe it is ASPEED. to detect the device ID.
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//
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DeviceID = ReadAHBDword (SCU7C);
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//
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//There is a Aspeed card need to support as well. it's type is AST2500 A1 EVB.
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//
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//AST2300-A0 0x01000003
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//AST2300-A1 0x01010303
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//AST1300-A1 0x01010003
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//AST1050-A1 0x01010203
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//AST2400-A0 0x02000303
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//AST2400-A1 0x02010303
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//AST1400-A1 0x02010103
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//AST1250-A1 0x02010303
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//AST2500-A0 0x04000303
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//AST2510-A0 0x04000103
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//AST2520-A0 0x04000203
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//AST2530-A0 0x04000403
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//AST2500-A1 0x04010303
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//AST2510-A1 0x04010103
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//AST2520-A1 0x04010203
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//AST2530-A1 0x04010403
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//
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if ((DeviceID & 0xff0000ff) == 0x04000003) {
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PresenceStatus = TRUE;
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}
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}
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IoWrite8 (ASPEED2500_SIO_INDEX_PORT, ASPEED2500_SIO_LOCK);
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return PresenceStatus;
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}
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/**
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* Checks for the presence of Nuvoton SIO
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* @return TRUE if its present. FALSE if not.
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*/
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BOOLEAN
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IsNuvotonPresent (
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VOID
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)
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{
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BOOLEAN PresenceStatus = FALSE;
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//
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// Nuvoton NCT5104D
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//
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IoWrite8 (NCT5104D_SIO_INDEX_PORT, NCT5104D_ENTER_THE_EXTENDED_FUNCTION_MODE);
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IoWrite8 (NCT5104D_SIO_INDEX_PORT, NCT5104D_ENTER_THE_EXTENDED_FUNCTION_MODE);
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IoWrite8 (NCT5104D_SIO_INDEX_PORT, NCT5104D_CHIP_ID_REG);
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if (IoRead8 (NCT5104D_SIO_DATA_PORT) == NCT5104D_CHIP_ID) {
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PresenceStatus = TRUE;
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}
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return PresenceStatus;
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}
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/**
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* Checks for the presence of the following SIO:
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* -ASPEED AST2500
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* -Nuvoton NCT5104D
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*
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* @return An UINT32 with the corresponding bit set for each SIO.
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* -ASPEED_EXIST BIT4
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* -NCT5104D_EXIST BIT3
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* -PC8374_EXIST BIT1
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* -PILOTIV_EXIST BIT0
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*/
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UINT32
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IsSioExist (
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VOID
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)
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{
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UINT32 SioExit = 0;
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if (IsAspeedPresent ()) {
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SioExit |= ASPEED_EXIST;
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}
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if (IsNuvotonPresent ()) {
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SioExit |= NCT5104D_EXIST;
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}
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DEBUG((DEBUG_INFO, "[SIO] Current system SIO exist bit:%x \n", SioExit));
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return SioExit;
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}
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