[edk2-devel] [`edk2-devel][PATCH V2 4/8] UefiPayloadPkg: Add SpiFlashLib
Guo Dong
guo.dong at intel.com
Tue Oct 19 06:20:11 UTC 2021
From: Guo Dong <guo.dong at intel.com>
This is a common SPI Flash library used for the Intel platform that
supports SPI hardware sequence. This library provides actual SPI flash
operation via Intel PCH SPI controller.
Signed-off-by: Guo Dong <guo.dong at intel.com>
Cc: Ray Ni <ray.ni at intel.com>
Cc: Maurice Ma <maurice.ma at intel.com>
Cc: Benjamin You <benjamin.you at intel.com>
Reviewed-by: Ray Ni <ray.ni at intel.com>
Reviewed-by: Benjamin You <benjamin.you at intel.com>
---
.../Include/Guid/SpiFlashInfoGuid.h | 38 +
UefiPayloadPkg/Include/Library/SpiFlashLib.h | 215 +++++
UefiPayloadPkg/Library/SpiFlashLib/PchSpi.c | 173 ++++
UefiPayloadPkg/Library/SpiFlashLib/RegsSpi.h | 129 +++
.../Library/SpiFlashLib/SpiCommon.h | 208 +++++
.../Library/SpiFlashLib/SpiFlashLib.c | 857 ++++++++++++++++++
.../Library/SpiFlashLib/SpiFlashLib.inf | 48 +
UefiPayloadPkg/UefiPayloadPkg.dec | 1 +
8 files changed, 1669 insertions(+)
create mode 100644 UefiPayloadPkg/Include/Guid/SpiFlashInfoGuid.h
create mode 100644 UefiPayloadPkg/Include/Library/SpiFlashLib.h
create mode 100644 UefiPayloadPkg/Library/SpiFlashLib/PchSpi.c
create mode 100644 UefiPayloadPkg/Library/SpiFlashLib/RegsSpi.h
create mode 100644 UefiPayloadPkg/Library/SpiFlashLib/SpiCommon.h
create mode 100644 UefiPayloadPkg/Library/SpiFlashLib/SpiFlashLib.c
create mode 100644 UefiPayloadPkg/Library/SpiFlashLib/SpiFlashLib.inf
diff --git a/UefiPayloadPkg/Include/Guid/SpiFlashInfoGuid.h b/UefiPayloadPkg/Include/Guid/SpiFlashInfoGuid.h
new file mode 100644
index 0000000000..6241463007
--- /dev/null
+++ b/UefiPayloadPkg/Include/Guid/SpiFlashInfoGuid.h
@@ -0,0 +1,38 @@
+/** @file
+ This file defines the hob structure for the SPI flash variable info.
+
+ Copyright (c) 2017 - 2021, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef SPI_FLASH_INFO_GUID_H_
+#define SPI_FLASH_INFO_GUID_H_
+
+#include <IndustryStandard/Acpi.h>
+//
+// SPI Flash infor hob GUID
+//
+extern EFI_GUID gSpiFlashInfoGuid;
+
+//
+// Set this bit if platform need disable SMM write protection when writing flash
+// in SMM mode using this method: -- AsmWriteMsr32 (0x1FE, MmioRead32 (0xFED30880) | BIT0);
+//
+#define FLAGS_SPI_DISABLE_SMM_WRITE_PROTECT BIT0
+
+//
+// Reuse ACPI definition
+//
+typedef EFI_ACPI_3_0_GENERIC_ADDRESS_STRUCTURE PLD_GENERIC_ADDRESS;
+#define SPACE_ID_PCI_CONFIGURATION EFI_ACPI_3_0_PCI_CONFIGURATION_SPACE
+#define REGISTER_BIT_WIDTH_DWORD EFI_ACPI_3_0_DWORD
+
+typedef struct {
+ UINT8 Revision;
+ UINT8 Reserved;
+ UINT16 Flags;
+ PLD_GENERIC_ADDRESS SpiAddress;
+} SPI_FLASH_INFO;
+
+#endif
diff --git a/UefiPayloadPkg/Include/Library/SpiFlashLib.h b/UefiPayloadPkg/Include/Library/SpiFlashLib.h
new file mode 100644
index 0000000000..59840afb70
--- /dev/null
+++ b/UefiPayloadPkg/Include/Library/SpiFlashLib.h
@@ -0,0 +1,215 @@
+/** @file
+ PCH SPI Common Driver implements the SPI Host Controller Compatibility Interface.
+
+ Copyright (c) 2017 - 2021, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef SPI_FLASH_LIB_H_
+#define SPI_FLASH_LIB_H_
+
+/**
+ Flash Region Type
+**/
+typedef enum {
+ FlashRegionDescriptor,
+ FlashRegionBios,
+ FlashRegionMe,
+ FlashRegionGbE,
+ FlashRegionPlatformData,
+ FlashRegionDer,
+ FlashRegionAll,
+ FlashRegionMax
+} FLASH_REGION_TYPE;
+
+/**
+ Read SFDP data from the flash part.
+
+ @param[in] ComponentNumber The Component Number for chip select
+ @param[in] ByteCount Number of bytes in SFDP data portion of the SPI cycle, the max number is 64
+ @param[out] SfdpData The Pointer to caller-allocated buffer containing the SFDP data received
+ It is the caller's responsibility to make sure Buffer is large enough for the total number of bytes read.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashReadSfdp (
+ IN UINT8 ComponentNumber,
+ IN UINT32 ByteCount,
+ OUT UINT8 *SfdpData
+ );
+
+/**
+ Read Jedec Id from the flash part.
+
+ @param[in] ComponentNumber The Component Number for chip select
+ @param[in] ByteCount Number of bytes in JedecId data portion of the SPI cycle, the data size is 3 typically
+ @param[out] JedecId The Pointer to caller-allocated buffer containing JEDEC ID received
+ It is the caller's responsibility to make sure Buffer is large enough for the total number of bytes read.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashReadJedecId (
+ IN UINT8 ComponentNumber,
+ IN UINT32 ByteCount,
+ OUT UINT8 *JedecId
+ );
+
+/**
+ Write the status register in the flash part.
+
+ @param[in] ByteCount Number of bytes in Status data portion of the SPI cycle, the data size is 1 typically
+ @param[in] StatusValue The Pointer to caller-allocated buffer containing the value of Status register writing
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashWriteStatus (
+ IN UINT32 ByteCount,
+ IN UINT8 *StatusValue
+ );
+
+/**
+ Read status register in the flash part.
+
+ @param[in] ByteCount Number of bytes in Status data portion of the SPI cycle, the data size is 1 typically
+ @param[out] StatusValue The Pointer to caller-allocated buffer containing the value of Status register received.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashReadStatus (
+ IN UINT32 ByteCount,
+ OUT UINT8 *StatusValue
+ );
+
+/**
+ Read SC Soft Strap Values
+
+ @param[in] SoftStrapAddr SC Soft Strap address offset from FPSBA.
+ @param[in] ByteCount Number of bytes in SoftStrap data portion of the SPI cycle
+ @param[out] SoftStrapValue The Pointer to caller-allocated buffer containing SC Soft Strap Value.
+ It is the caller's responsibility to make sure Buffer is large enough for the total number of bytes read.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiReadPchSoftStrap (
+ IN UINT32 SoftStrapAddr,
+ IN UINT32 ByteCount,
+ OUT UINT8 *SoftStrapValue
+ );
+
+
+/**
+ Read data from the flash part.
+
+ @param[in] FlashRegionType The Flash Region type for flash cycle which is listed in the Descriptor.
+ @param[in] Address The Flash Linear Address must fall within a region for which BIOS has access permissions.
+ @param[in] ByteCount Number of bytes in the data portion of the SPI cycle.
+ @param[out] Buffer The Pointer to caller-allocated buffer containing the dada received.
+ It is the caller's responsibility to make sure Buffer is large enough for the total number of bytes read.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashRead (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ IN UINT32 Address,
+ IN UINT32 ByteCount,
+ OUT UINT8 *Buffer
+ );
+
+/**
+ Erase some area on the flash part.
+
+ @param[in] FlashRegionType The Flash Region type for flash cycle which is listed in the Descriptor.
+ @param[in] Address The Flash Linear Address must fall within a region for which BIOS has access permissions.
+ @param[in] ByteCount Number of bytes in the data portion of the SPI cycle.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashErase (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ IN UINT32 Address,
+ IN UINT32 ByteCount
+ );
+
+/**
+ Write data to the flash part.
+
+ @param[in] FlashRegionType The Flash Region type for flash cycle which is listed in the Descriptor.
+ @param[in] Address The Flash Linear Address must fall within a region for which BIOS has access permissions.
+ @param[in] ByteCount Number of bytes in the data portion of the SPI cycle.
+ @param[in] Buffer Pointer to caller-allocated buffer containing the data sent during the SPI cycle.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashWrite (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ IN UINT32 Address,
+ IN UINT32 ByteCount,
+ IN UINT8 *Buffer
+ );
+
+/**
+ Initialize an SPI library.
+
+ @retval EFI_SUCCESS The protocol instance was properly initialized
+ @retval EFI_NOT_FOUND The expected SPI info could not be found
+**/
+EFI_STATUS
+EFIAPI
+SpiConstructor (
+ VOID
+ );
+
+/**
+ Get the SPI region base and size, based on the enum type
+
+ @param[in] FlashRegionType The Flash Region type for for the base address which is listed in the Descriptor.
+ @param[out] BaseAddress The Flash Linear Address for the Region 'n' Base
+ @param[out] RegionSize The size for the Region 'n'
+
+ @retval EFI_SUCCESS Read success
+ @retval EFI_INVALID_PARAMETER Invalid region type given
+ @retval EFI_DEVICE_ERROR The region is not used
+**/
+EFI_STATUS
+EFIAPI
+SpiGetRegionAddress (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ OUT UINT32 *BaseAddress, OPTIONAL
+ OUT UINT32 *RegionSize OPTIONAL
+ );
+
+#endif
+
diff --git a/UefiPayloadPkg/Library/SpiFlashLib/PchSpi.c b/UefiPayloadPkg/Library/SpiFlashLib/PchSpi.c
new file mode 100644
index 0000000000..1dafce19cb
--- /dev/null
+++ b/UefiPayloadPkg/Library/SpiFlashLib/PchSpi.c
@@ -0,0 +1,173 @@
+/** @file
+
+ Copyright (c) 2017-2021, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#include "SpiCommon.h"
+
+/**
+ Acquire SPI MMIO BAR.
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+
+ @retval Return SPI BAR Address
+
+**/
+UINT32
+AcquireSpiBar0 (
+ IN UINTN PchSpiBase
+ )
+{
+ return MmioRead32 (PchSpiBase + R_SPI_BASE) & ~(B_SPI_BAR0_MASK);
+}
+
+/**
+ Release SPI MMIO BAR. Do nothing.
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+
+**/
+VOID
+ReleaseSpiBar0 (
+ IN UINTN PchSpiBase
+ )
+{
+}
+
+
+
+/**
+ This function is to enable/disable BIOS Write Protect in SMM phase.
+
+ @param[in] EnableSmmSts Flag to Enable/disable Bios write protect
+
+**/
+VOID
+CpuSmmDisableBiosWriteProtect (
+ IN BOOLEAN EnableSmmSts
+ )
+{
+ UINT32 Data32;
+
+ if(EnableSmmSts){
+ //
+ // Disable BIOS Write Protect in SMM phase.
+ //
+ Data32 = MmioRead32 ((UINTN) (0xFED30880)) | (UINT32) (BIT0);
+ AsmWriteMsr32 (0x000001FE, Data32);
+ } else {
+ //
+ // Enable BIOS Write Protect in SMM phase
+ //
+ Data32 = MmioRead32 ((UINTN) (0xFED30880)) & (UINT32) (~BIT0);
+ AsmWriteMsr32 (0x000001FE, Data32);
+ }
+
+ //
+ // Read FED30880h back to ensure the setting went through.
+ //
+ Data32 = MmioRead32 (0xFED30880);
+}
+
+
+/**
+ This function is a hook for Spi to disable BIOS Write Protect.
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+ @param[in] CpuSmmBwp Need to disable CPU SMM Bios write protection or not
+
+ @retval EFI_SUCCESS The protocol instance was properly initialized
+ @retval EFI_ACCESS_DENIED The BIOS Region can only be updated in SMM phase
+
+**/
+EFI_STATUS
+EFIAPI
+DisableBiosWriteProtect (
+ IN UINTN PchSpiBase,
+ IN UINT8 CpuSmmBwp
+ )
+{
+
+ //
+ // Write clear BC_SYNC_SS prior to change WPD from 0 to 1.
+ //
+ MmioOr8 (PchSpiBase + R_SPI_BCR + 1, (B_SPI_BCR_SYNC_SS >> 8));
+
+ //
+ // Enable the access to the BIOS space for both read and write cycles
+ //
+ MmioOr8 (PchSpiBase + R_SPI_BCR, B_SPI_BCR_BIOSWE);
+
+ if (CpuSmmBwp != 0) {
+ CpuSmmDisableBiosWriteProtect (TRUE);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ This function is a hook for Spi to enable BIOS Write Protect.
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+ @param[in] CpuSmmBwp Need to disable CPU SMM Bios write protection or not
+
+**/
+VOID
+EFIAPI
+EnableBiosWriteProtect (
+ IN UINTN PchSpiBase,
+ IN UINT8 CpuSmmBwp
+ )
+{
+
+ //
+ // Disable the access to the BIOS space for write cycles
+ //
+ MmioAnd8 (PchSpiBase + R_SPI_BCR, (UINT8) (~B_SPI_BCR_BIOSWE));
+
+ if (CpuSmmBwp != 0) {
+ CpuSmmDisableBiosWriteProtect (FALSE);
+ }
+}
+
+/**
+ This function disables SPI Prefetching and caching,
+ and returns previous BIOS Control Register value before disabling.
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+
+ @retval Previous BIOS Control Register value
+
+**/
+UINT8
+SaveAndDisableSpiPrefetchCache (
+ IN UINTN PchSpiBase
+ )
+{
+ UINT8 BiosCtlSave;
+
+ BiosCtlSave = MmioRead8 (PchSpiBase + R_SPI_BCR) & B_SPI_BCR_SRC;
+
+ MmioAndThenOr32 (PchSpiBase + R_SPI_BCR, \
+ (UINT32) (~B_SPI_BCR_SRC), \
+ (UINT32) (V_SPI_BCR_SRC_PREF_DIS_CACHE_DIS << B_SPI_BCR_SRC));
+
+ return BiosCtlSave;
+}
+
+/**
+ This function updates BIOS Control Register with the given value.
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+ @param[in] BiosCtlValue BIOS Control Register Value to be updated
+
+**/
+VOID
+SetSpiBiosControlRegister (
+ IN UINTN PchSpiBase,
+ IN UINT8 BiosCtlValue
+ )
+{
+ MmioAndThenOr8 (PchSpiBase + R_SPI_BCR, (UINT8) ~B_SPI_BCR_SRC, BiosCtlValue);
+}
diff --git a/UefiPayloadPkg/Library/SpiFlashLib/RegsSpi.h b/UefiPayloadPkg/Library/SpiFlashLib/RegsSpi.h
new file mode 100644
index 0000000000..5f22623675
--- /dev/null
+++ b/UefiPayloadPkg/Library/SpiFlashLib/RegsSpi.h
@@ -0,0 +1,129 @@
+/** @file
+ Register names for SPI device.
+
+ Copyright (c) 2017 - 2019, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef REGS_SPI_H_
+#define REGS_SPI_H_
+
+#define R_SPI_BASE 0x10 ///< 32-bit Memory Base Address Register
+#define B_SPI_BAR0_MASK 0x0FFF
+#define R_SPI_BCR 0xDC ///< BIOS Control Register
+#define B_SPI_BCR_SRC (BIT3 | BIT2) ///< SPI Read Configuration (SRC)
+#define V_SPI_BCR_SRC_PREF_DIS_CACHE_DIS 0x04 ///< Prefetch Disable, Cache Disable
+#define B_SPI_BCR_SYNC_SS BIT8
+#define B_SPI_BCR_BIOSWE BIT0 ///< Write Protect Disable (WPD)
+
+///
+/// SPI Host Interface Registers
+#define R_SPI_HSFS 0x04 ///< Hardware Sequencing Flash Status and Control Register(32bits)
+#define B_SPI_HSFS_FDBC_MASK 0x3F000000 ///< Flash Data Byte Count ( <= 64), Count = (Value in this field) + 1.
+#define N_SPI_HSFS_FDBC 24
+#define B_SPI_HSFS_CYCLE_MASK 0x001E0000 ///< Flash Cycle.
+#define N_SPI_HSFS_CYCLE 17
+#define V_SPI_HSFS_CYCLE_READ 0 ///< Flash Cycle Read
+#define V_SPI_HSFS_CYCLE_WRITE 2 ///< Flash Cycle Write
+#define V_SPI_HSFS_CYCLE_4K_ERASE 3 ///< Flash Cycle 4K Block Erase
+#define V_SPI_HSFS_CYCLE_64K_ERASE 4 ///< Flash Cycle 64K Sector Erase
+#define V_SPI_HSFS_CYCLE_READ_SFDP 5 ///< Flash Cycle Read SFDP
+#define V_SPI_HSFS_CYCLE_READ_JEDEC_ID 6 ///< Flash Cycle Read JEDEC ID
+#define V_SPI_HSFS_CYCLE_WRITE_STATUS 7 ///< Flash Cycle Write Status
+#define V_SPI_HSFS_CYCLE_READ_STATUS 8 ///< Flash Cycle Read Status
+#define B_SPI_HSFS_CYCLE_FGO BIT16 ///< Flash Cycle Go.
+#define B_SPI_HSFS_FDV BIT14 ///< Flash Descriptor Valid
+#define B_SPI_HSFS_SCIP BIT5 ///< SPI Cycle in Progress
+#define B_SPI_HSFS_FCERR BIT1 ///< Flash Cycle Error
+#define B_SPI_HSFS_FDONE BIT0 ///< Flash Cycle Done
+
+
+#define R_SPI_FADDR 0x08 ///< SPI Flash Address
+#define B_SPI_FADDR_MASK 0x07FFFFFF ///< SPI Flash Address Mask (0~26bit)
+
+
+#define R_SPI_FDATA00 0x10 ///< SPI Data 00 (32 bits)
+
+#define R_SPI_FRAP 0x50 ///< SPI Flash Regions Access Permissions Register
+#define B_SPI_FRAP_BRWA_PLATFORM BIT12 //< Region write access for Region4 PlatformData
+#define B_SPI_FRAP_BRWA_GBE BIT11 //< Region write access for Region3 GbE
+#define B_SPI_FRAP_BRWA_SEC BIT10 ///< Region Write Access for Region2 SEC
+#define B_SPI_FRAP_BRWA_BIOS BIT9 ///< Region Write Access for Region1 BIOS
+#define B_SPI_FRAP_BRWA_FLASHD BIT8 ///< Region Write Access for Region0 Flash Descriptor
+#define B_SPI_FRAP_BRRA_PLATFORM BIT4 ///< Region read access for Region4 PlatformData
+#define B_SPI_FRAP_BRRA_GBE BIT3 ///< Region read access for Region3 GbE
+#define B_SPI_FRAP_BRRA_SEC BIT2 ///< Region Read Access for Region2 SEC
+#define B_SPI_FRAP_BRRA_BIOS BIT1 ///< Region Read Access for Region1 BIOS
+#define B_SPI_FRAP_BRRA_FLASHD BIT0 ///< Region Read Access for Region0 Flash Descriptor
+
+
+#define R_SPI_FREG0_FLASHD 0x54 ///< Flash Region 0 (Flash Descriptor) (32bits)
+#define B_SPI_FREG0_LIMIT_MASK 0x7FFF0000 ///< Size, [30:16] here represents limit[26:12]
+#define N_SPI_FREG0_LIMIT 4 ///< Bit 30:16 identifies address bits [26:12]
+#define B_SPI_FREG0_BASE_MASK 0x00007FFF ///< Base, [14:0] here represents base [26:12]
+#define N_SPI_FREG0_BASE 12 ///< Bit 14:0 identifies address bits [26:2]
+
+#define R_SPI_FREG1_BIOS 0x58 ///< Flash Region 1 (BIOS) (32bits)
+#define B_SPI_FREG1_LIMIT_MASK 0x7FFF0000 ///< Size, [30:16] here represents limit[26:12]
+#define N_SPI_FREG1_LIMIT 4 ///< Bit 30:16 identifies address bits [26:12]
+#define B_SPI_FREG1_BASE_MASK 0x00007FFF ///< Base, [14:0] here represents base [26:12]
+#define N_SPI_FREG1_BASE 12 ///< Bit 14:0 identifies address bits [26:2]
+
+#define R_SPI_FREG2_SEC 0x5C ///< Flash Region 2 (SEC) (32bits)
+#define B_SPI_FREG2_LIMIT_MASK 0x7FFF0000 ///< Size, [30:16] here represents limit[26:12]
+#define N_SPI_FREG2_LIMIT 4 //< Bit 30:16 identifies address bits [26:12]
+#define B_SPI_FREG2_BASE_MASK 0x00007FFF ///< Base, [14:0] here represents base [26:12]
+#define N_SPI_FREG2_BASE 12 //< Bit 14:0 identifies address bits [26:2]
+
+#define R_SPI_FREG3_GBE 0x60 //< Flash Region 3(GbE)(32bits)
+#define B_SPI_FREG3_LIMIT_MASK 0x7FFF0000 ///< Size, [30:16] here represents limit[26:12]
+#define N_SPI_FREG3_LIMIT 4 //< Bit 30:16 identifies address bits [26:12]
+#define B_SPI_FREG3_BASE_MASK 0x00007FFF ///< Base, [14:0] here represents base [26:12]
+#define N_SPI_FREG3_BASE 12 //< Bit 14:0 identifies address bits [26:2]
+
+#define R_SPI_FREG4_PLATFORM_DATA 0x64 ///< Flash Region 4 (Platform Data) (32bits)
+#define B_SPI_FREG4_LIMIT_MASK 0x7FFF0000 ///< Size, [30:16] here represents limit[26:12]
+#define N_SPI_FREG4_LIMIT 4 ///< Bit 30:16 identifies address bits [26:12]
+#define B_SPI_FREG4_BASE_MASK 0x00007FFF ///< Base, [14:0] here represents base [26:12]
+#define N_SPI_FREG4_BASE 12 ///< Bit 14:0 identifies address bits [26:2]
+
+
+#define S_SPI_FREGX 4 ///< Size of Flash Region register
+#define B_SPI_FREGX_LIMIT_MASK 0x7FFF0000 ///< Flash Region Limit [30:16] represents [26:12], [11:0] are assumed to be FFFh
+#define N_SPI_FREGX_LIMIT 16 ///< Region limit bit position
+#define N_SPI_FREGX_LIMIT_REPR 12 ///< Region limit bit represents position
+#define B_SPI_FREGX_BASE_MASK 0x00007FFF ///< Flash Region Base, [14:0] represents [26:12]
+
+
+#define R_SPI_FDOC 0xB4 ///< Flash Descriptor Observability Control Register (32 bits)
+#define B_SPI_FDOC_FDSS_MASK (BIT14 | BIT13 | BIT12) ///< Flash Descriptor Section Select
+#define V_SPI_FDOC_FDSS_FSDM 0x0000 ///< Flash Signature and Descriptor Map
+#define V_SPI_FDOC_FDSS_COMP 0x1000 ///< Component
+#define B_SPI_FDOC_FDSI_MASK 0x0FFC ///< Flash Descriptor Section Index
+
+#define R_SPI_FDOD 0xB8 ///< Flash Descriptor Observability Data Register (32 bits)
+
+
+#define R_SPI_LVSCC 0xC4 ///<Vendor Specific Component Capabilities for Component 0 (32 bits)
+#define B_SPI_LVSCC_EO_64K BIT29 ///<< 64k Erase valid (EO_64k_valid)
+
+#define R_SPI_UVSCC 0xC8 ///< Vendor Specific Component Capabilities for Component 1 (32 bits)
+
+
+#define R_SPI_FDBAR_FLASH_MAP0 0x14 ///< Flash MAP 0
+#define N_SPI_FDBAR_NC 8 ///<< Number Of Components
+#define B_SPI_FDBAR_NC 0x00000300 ///< Number Of Components
+
+#define R_SPI_FDBAR_FLASH_MAP1 0x18 ///< Flash MAP 1
+#define B_SPI_FDBAR_FPSBA 0x00FF0000 ///< Flash Strap Base Address
+
+
+//
+// Flash Component Base Address (FCBA) from Flash Region 0
+//
+#define R_SPI_FCBA_FLCOMP 0x00 ///< Flash Components Register
+#define B_SPI_FLCOMP_COMP1_MASK 0x0F ///< Flash Component 1 Density
+
+
+#endif
diff --git a/UefiPayloadPkg/Library/SpiFlashLib/SpiCommon.h b/UefiPayloadPkg/Library/SpiFlashLib/SpiCommon.h
new file mode 100644
index 0000000000..e4f4ad92e1
--- /dev/null
+++ b/UefiPayloadPkg/Library/SpiFlashLib/SpiCommon.h
@@ -0,0 +1,208 @@
+/** @file
+ Header file for the SPI flash module.
+
+ Copyright (c) 2017 - 2021, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef SPI_COMMON_LIB_H_
+#define SPI_COMMON_LIB_H_
+
+#include <PiDxe.h>
+#include <Uefi/UefiBaseType.h>
+#include <IndustryStandard/Pci30.h>
+#include <Library/IoLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/SpiFlashLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/BaseLib.h>
+#include <Library/HobLib.h>
+#include <Library/TimerLib.h>
+#include <Guid/SpiFlashInfoGuid.h>
+#include "RegsSpi.h"
+
+///
+/// Maximum time allowed while waiting the SPI cycle to complete
+/// Wait Time = 6 seconds = 6000000 microseconds
+/// Wait Period = 10 microseconds
+///
+#define WAIT_TIME 6000000 ///< Wait Time = 6 seconds = 6000000 microseconds
+#define WAIT_PERIOD 10 ///< Wait Period = 10 microseconds
+
+///
+/// Flash cycle Type
+///
+typedef enum {
+ FlashCycleRead,
+ FlashCycleWrite,
+ FlashCycleErase,
+ FlashCycleReadSfdp,
+ FlashCycleReadJedecId,
+ FlashCycleWriteStatus,
+ FlashCycleReadStatus,
+ FlashCycleMax
+} FLASH_CYCLE_TYPE;
+
+///
+/// Flash Component Number
+///
+typedef enum {
+ FlashComponent0,
+ FlashComponent1,
+ FlashComponentMax
+} FLASH_COMPONENT_NUM;
+
+///
+/// Private data structure definitions for the driver
+///
+#define SC_SPI_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('P', 'S', 'P', 'I')
+
+typedef struct {
+ UINTN Signature;
+ EFI_HANDLE Handle;
+ UINT32 AcpiTmrReg;
+ UINTN PchSpiBase;
+ UINT16 RegionPermission;
+ UINT32 SfdpVscc0Value;
+ UINT32 SfdpVscc1Value;
+ UINT32 StrapBaseAddress;
+ UINT8 NumberOfComponents;
+ UINT16 Flags;
+ UINT32 Component1StartAddr;
+} SPI_INSTANCE;
+
+
+/**
+ Acquire SPI MMIO BAR
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+
+ @retval Return SPI BAR Address
+
+**/
+UINT32
+AcquireSpiBar0 (
+ IN UINTN PchSpiBase
+ );
+
+
+/**
+ Release SPI MMIO BAR. Do nothing.
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+
+ @retval None
+
+**/
+VOID
+ReleaseSpiBar0 (
+ IN UINTN PchSpiBase
+ );
+
+
+/**
+ This function is a hook for Spi to disable BIOS Write Protect
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+ @param[in] CpuSmmBwp Need to disable CPU SMM Bios write protection or not
+
+ @retval EFI_SUCCESS The protocol instance was properly initialized
+ @retval EFI_ACCESS_DENIED The BIOS Region can only be updated in SMM phase
+
+**/
+EFI_STATUS
+EFIAPI
+DisableBiosWriteProtect (
+ IN UINTN PchSpiBase,
+ IN UINT8 CpuSmmBwp
+ );
+
+/**
+ This function is a hook for Spi to enable BIOS Write Protect
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+ @param[in] CpuSmmBwp Need to disable CPU SMM Bios write protection or not
+
+ @retval None
+
+**/
+VOID
+EFIAPI
+EnableBiosWriteProtect (
+ IN UINTN PchSpiBase,
+ IN UINT8 CpuSmmBwp
+ );
+
+
+/**
+ This function disables SPI Prefetching and caching,
+ and returns previous BIOS Control Register value before disabling.
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+
+ @retval Previous BIOS Control Register value
+
+**/
+UINT8
+SaveAndDisableSpiPrefetchCache (
+ IN UINTN PchSpiBase
+ );
+
+/**
+ This function updates BIOS Control Register with the given value.
+
+ @param[in] PchSpiBase PCH SPI PCI Base Address
+ @param[in] BiosCtlValue BIOS Control Register Value to be updated
+
+ @retval None
+
+**/
+VOID
+SetSpiBiosControlRegister (
+ IN UINTN PchSpiBase,
+ IN UINT8 BiosCtlValue
+ );
+
+
+/**
+ This function sends the programmed SPI command to the slave device.
+
+ @param[in] SpiRegionType The SPI Region type for flash cycle which is listed in the Descriptor
+ @param[in] FlashCycleType The Flash SPI cycle type list in HSFC (Hardware Sequencing Flash Control Register) register
+ @param[in] Address The Flash Linear Address must fall within a region for which BIOS has access permissions.
+ @param[in] ByteCount Number of bytes in the data portion of the SPI cycle.
+ @param[in,out] Buffer Pointer to caller-allocated buffer containing the data received or sent during the SPI cycle.
+
+ @retval EFI_SUCCESS SPI command completes successfully.
+ @retval EFI_DEVICE_ERROR Device error, the command aborts abnormally.
+ @retval EFI_ACCESS_DENIED Some unrecognized command encountered in hardware sequencing mode
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+**/
+EFI_STATUS
+SendSpiCmd (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ IN FLASH_CYCLE_TYPE FlashCycleType,
+ IN UINT32 Address,
+ IN UINT32 ByteCount,
+ IN OUT UINT8 *Buffer
+ );
+
+/**
+ Wait execution cycle to complete on the SPI interface.
+
+ @param[in] PchSpiBar0 Spi MMIO base address
+ @param[in] ErrorCheck TRUE if the SpiCycle needs to do the error check
+
+ @retval TRUE SPI cycle completed on the interface.
+ @retval FALSE Time out while waiting the SPI cycle to complete.
+ It's not safe to program the next command on the SPI interface.
+**/
+BOOLEAN
+WaitForSpiCycleComplete (
+ IN UINT32 PchSpiBar0,
+ IN BOOLEAN ErrorCheck
+ );
+
+#endif
diff --git a/UefiPayloadPkg/Library/SpiFlashLib/SpiFlashLib.c b/UefiPayloadPkg/Library/SpiFlashLib/SpiFlashLib.c
new file mode 100644
index 0000000000..71dfcef740
--- /dev/null
+++ b/UefiPayloadPkg/Library/SpiFlashLib/SpiFlashLib.c
@@ -0,0 +1,857 @@
+/** @file
+ Generic driver using Hardware Sequencing registers.
+
+ Copyright (c) 2017-2021, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#include "SpiCommon.h"
+
+SPI_INSTANCE *mSpiInstance = NULL;
+
+/**
+ Get SPI Instance from library global data..
+
+ @retval SpiInstance Return SPI instance
+**/
+SPI_INSTANCE *
+GetSpiInstance (
+ VOID
+)
+{
+ if (mSpiInstance == NULL) {
+ mSpiInstance = AllocatePool (sizeof(SPI_INSTANCE));
+ if (mSpiInstance == NULL) {
+ return NULL;
+ }
+ ZeroMem (mSpiInstance, sizeof(SPI_INSTANCE));
+ }
+
+ return mSpiInstance;
+}
+
+
+/**
+ Initialize an SPI library.
+
+ @retval EFI_SUCCESS The protocol instance was properly initialized
+ @retval EFI_NOT_FOUND The expected SPI info could not be found
+**/
+EFI_STATUS
+EFIAPI
+SpiConstructor (
+ VOID
+ )
+{
+ UINT32 ScSpiBar0;
+ UINT8 Comp0Density;
+ SPI_INSTANCE *SpiInstance;
+ EFI_HOB_GUID_TYPE *GuidHob;
+ SPI_FLASH_INFO *SpiFlashInfo;
+
+ //
+ // Find SPI flash hob
+ //
+ GuidHob = GetFirstGuidHob (&gSpiFlashInfoGuid);
+ if (GuidHob == NULL) {
+ ASSERT (FALSE);
+ return EFI_NOT_FOUND;
+ }
+ SpiFlashInfo = (SPI_FLASH_INFO *) GET_GUID_HOB_DATA (GuidHob);
+
+ //
+ // Initialize the SPI instance
+ //
+ SpiInstance = GetSpiInstance ();
+ if (SpiInstance == NULL) {
+ return EFI_NOT_FOUND;
+ }
+ DEBUG ((DEBUG_INFO, "SpiInstance = %08X\n", SpiInstance));
+
+ SpiInstance->Signature = SC_SPI_PRIVATE_DATA_SIGNATURE;
+ SpiInstance->Handle = NULL;
+
+ //
+ // Check the SPI address
+ //
+ if ((SpiFlashInfo->SpiAddress.AddressSpaceId != EFI_ACPI_3_0_PCI_CONFIGURATION_SPACE) ||
+ (SpiFlashInfo->SpiAddress.RegisterBitWidth != 32) ||
+ (SpiFlashInfo->SpiAddress.RegisterBitOffset != 0) ||
+ (SpiFlashInfo->SpiAddress.AccessSize != EFI_ACPI_3_0_DWORD)){
+ DEBUG ((DEBUG_ERROR, "SPI FLASH HOB is not expected. need check the hob or enhance SPI flash driver.\n"));
+ }
+ SpiInstance->PchSpiBase = (UINT32)(UINTN)SpiFlashInfo->SpiAddress.Address;
+ SpiInstance->Flags = SpiFlashInfo->Flags;
+ DEBUG ((DEBUG_INFO, "PchSpiBase at 0x%x\n", SpiInstance->PchSpiBase));
+
+ ScSpiBar0 = AcquireSpiBar0 (SpiInstance->PchSpiBase);
+ DEBUG ((DEBUG_INFO, "ScSpiBar0 at 0x%08X\n", ScSpiBar0));
+
+ if (ScSpiBar0 == 0) {
+ ASSERT (FALSE);
+ }
+
+ if ((MmioRead32 (ScSpiBar0 + R_SPI_HSFS) & B_SPI_HSFS_FDV) == 0) {
+ DEBUG ((DEBUG_ERROR, "SPI Flash descriptor invalid, cannot use Hardware Sequencing registers!\n"));
+ ASSERT (FALSE);
+ }
+
+ MmioOr32 (SpiInstance->PchSpiBase + PCI_COMMAND_OFFSET, EFI_PCI_COMMAND_MEMORY_SPACE);
+ SpiInstance->RegionPermission = MmioRead16 (ScSpiBar0 + R_SPI_FRAP);
+ SpiInstance->SfdpVscc0Value = MmioRead32 (ScSpiBar0 + R_SPI_LVSCC);
+ SpiInstance->SfdpVscc1Value = MmioRead32 (ScSpiBar0 + R_SPI_UVSCC);
+
+ //
+ // Select to Flash Map 0 Register to get the number of flash Component
+ //
+ MmioAndThenOr32 (
+ ScSpiBar0 + R_SPI_FDOC,
+ (UINT32) (~(B_SPI_FDOC_FDSS_MASK | B_SPI_FDOC_FDSI_MASK)),
+ (UINT32) (V_SPI_FDOC_FDSS_FSDM | R_SPI_FDBAR_FLASH_MAP0)
+ );
+
+ //
+ // Copy Zero based Number Of Components
+ //
+ SpiInstance->NumberOfComponents = (UINT8) ((MmioRead16 (ScSpiBar0 + R_SPI_FDOD) & B_SPI_FDBAR_NC) >> N_SPI_FDBAR_NC);
+
+ MmioAndThenOr32 (
+ ScSpiBar0 + R_SPI_FDOC,
+ (UINT32) (~(B_SPI_FDOC_FDSS_MASK | B_SPI_FDOC_FDSI_MASK)),
+ (UINT32) (V_SPI_FDOC_FDSS_COMP | R_SPI_FCBA_FLCOMP)
+ );
+
+ //
+ // Copy Component 0 Density
+ //
+ Comp0Density = (UINT8) MmioRead32 (ScSpiBar0 + R_SPI_FDOD) & B_SPI_FLCOMP_COMP1_MASK;
+ SpiInstance->Component1StartAddr = (UINT32) (SIZE_512KB << Comp0Density);
+
+ //
+ // Select FLASH_MAP1 to get Flash SC Strap Base Address
+ //
+ MmioAndThenOr32 (
+ (ScSpiBar0 + R_SPI_FDOC),
+ (UINT32) (~(B_SPI_FDOC_FDSS_MASK | B_SPI_FDOC_FDSI_MASK)),
+ (UINT32) (V_SPI_FDOC_FDSS_FSDM | R_SPI_FDBAR_FLASH_MAP1)
+ );
+
+ SpiInstance->StrapBaseAddress = MmioRead32 (ScSpiBar0 + R_SPI_FDOD) & B_SPI_FDBAR_FPSBA;
+
+ //
+ // Align FPSBA with address bits for the SC Strap portion of flash descriptor
+ //
+ SpiInstance->StrapBaseAddress &= B_SPI_FDBAR_FPSBA;
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Read data from the flash part.
+
+ @param[in] FlashRegionType The Flash Region type for flash cycle which is listed in the Descriptor.
+ @param[in] Address The Flash Linear Address must fall within a region for which BIOS has access permissions.
+ @param[in] ByteCount Number of bytes in the data portion of the SPI cycle.
+ @param[out] Buffer The Pointer to caller-allocated buffer containing the data received.
+ It is the caller's responsibility to make sure Buffer is large enough for the total number of bytes read.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashRead (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ IN UINT32 Address,
+ IN UINT32 ByteCount,
+ OUT UINT8 *Buffer
+ )
+{
+ EFI_STATUS Status;
+
+ Status = SendSpiCmd (FlashRegionType, FlashCycleRead, Address, ByteCount, Buffer);
+ return Status;
+}
+
+/**
+ Write data to the flash part.
+
+ @param[in] FlashRegionType The Flash Region type for flash cycle which is listed in the Descriptor.
+ @param[in] Address The Flash Linear Address must fall within a region for which BIOS has access permissions.
+ @param[in] ByteCount Number of bytes in the data portion of the SPI cycle.
+ @param[in] Buffer Pointer to caller-allocated buffer containing the data sent during the SPI cycle.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashWrite (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ IN UINT32 Address,
+ IN UINT32 ByteCount,
+ IN UINT8 *Buffer
+ )
+{
+ EFI_STATUS Status;
+
+ Status = SendSpiCmd (FlashRegionType, FlashCycleWrite, Address, ByteCount, Buffer);
+ return Status;
+}
+
+/**
+ Erase some area on the flash part.
+
+ @param[in] FlashRegionType The Flash Region type for flash cycle which is listed in the Descriptor.
+ @param[in] Address The Flash Linear Address must fall within a region for which BIOS has access permissions.
+ @param[in] ByteCount Number of bytes in the data portion of the SPI cycle.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashErase (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ IN UINT32 Address,
+ IN UINT32 ByteCount
+ )
+{
+ EFI_STATUS Status;
+
+ Status = SendSpiCmd (FlashRegionType, FlashCycleErase, Address, ByteCount, NULL);
+ return Status;
+}
+
+/**
+ Read SFDP data from the flash part.
+
+ @param[in] ComponentNumber The Component Number for chip select
+ @param[in] ByteCount Number of bytes in SFDP data portion of the SPI cycle, the max number is 64
+ @param[out] SfdpData The Pointer to caller-allocated buffer containing the SFDP data received
+ It is the caller's responsibility to make sure Buffer is large enough for the total number of bytes read.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashReadSfdp (
+ IN UINT8 ComponentNumber,
+ IN UINT32 ByteCount,
+ OUT UINT8 *SfdpData
+ )
+{
+ EFI_STATUS Status;
+ UINT32 Address;
+ SPI_INSTANCE *SpiInstance;
+
+ SpiInstance = GetSpiInstance ();
+ if (SpiInstance == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ if ((ByteCount > 64) || (ComponentNumber > SpiInstance->NumberOfComponents)) {
+ ASSERT (FALSE);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Address = 0;
+ if (ComponentNumber == FlashComponent1) {
+ Address = SpiInstance->Component1StartAddr;
+ }
+
+ Status = SendSpiCmd (0, FlashCycleReadSfdp, Address, ByteCount, SfdpData);
+ return Status;
+}
+
+/**
+ Read Jedec Id from the flash part.
+
+ @param[in] ComponentNumber The Component Number for chip select
+ @param[in] ByteCount Number of bytes in JedecId data portion of the SPI cycle, the data size is 3 typically
+ @param[out] JedecId The Pointer to caller-allocated buffer containing JEDEC ID received
+ It is the caller's responsibility to make sure Buffer is large enough for the total number of bytes read.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashReadJedecId (
+ IN UINT8 ComponentNumber,
+ IN UINT32 ByteCount,
+ OUT UINT8 *JedecId
+ )
+{
+ EFI_STATUS Status;
+ UINT32 Address;
+ SPI_INSTANCE *SpiInstance;
+
+ SpiInstance = GetSpiInstance ();
+ if (SpiInstance == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ if (ComponentNumber > SpiInstance->NumberOfComponents) {
+ ASSERT (FALSE);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Address = 0;
+ if (ComponentNumber == FlashComponent1) {
+ Address = SpiInstance->Component1StartAddr;
+ }
+
+ Status = SendSpiCmd (0, FlashCycleReadJedecId, Address, ByteCount, JedecId);
+ return Status;
+}
+
+/**
+ Write the status register in the flash part.
+
+ @param[in] ByteCount Number of bytes in Status data portion of the SPI cycle, the data size is 1 typically
+ @param[in] StatusValue The Pointer to caller-allocated buffer containing the value of Status register writing
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashWriteStatus (
+ IN UINT32 ByteCount,
+ IN UINT8 *StatusValue
+ )
+{
+ EFI_STATUS Status;
+
+ Status = SendSpiCmd (0, FlashCycleWriteStatus, 0, ByteCount, StatusValue);
+ return Status;
+}
+
+/**
+ Read status register in the flash part.
+
+ @param[in] ByteCount Number of bytes in Status data portion of the SPI cycle, the data size is 1 typically
+ @param[out] StatusValue The Pointer to caller-allocated buffer containing the value of Status register received.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiFlashReadStatus (
+ IN UINT32 ByteCount,
+ OUT UINT8 *StatusValue
+ )
+{
+ EFI_STATUS Status;
+
+ Status = SendSpiCmd (0, FlashCycleReadStatus, 0, ByteCount, StatusValue);
+ return Status;
+}
+
+/**
+ Read SC Soft Strap Values
+
+ @param[in] SoftStrapAddr SC Soft Strap address offset from FPSBA.
+ @param[in] ByteCount Number of bytes in SoftStrap data portion of the SPI cycle
+ @param[out] SoftStrapValue The Pointer to caller-allocated buffer containing SC Soft Strap Value.
+ It is the caller's responsibility to make sure Buffer is large enough for the total number of bytes read.
+
+ @retval EFI_SUCCESS Command succeed.
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+ @retval EFI_DEVICE_ERROR Device error, command aborts abnormally.
+**/
+EFI_STATUS
+EFIAPI
+SpiReadPchSoftStrap (
+ IN UINT32 SoftStrapAddr,
+ IN UINT32 ByteCount,
+ OUT UINT8 *SoftStrapValue
+ )
+{
+ UINT32 StrapFlashAddr;
+ EFI_STATUS Status;
+ SPI_INSTANCE *SpiInstance;
+
+ SpiInstance = GetSpiInstance ();
+ if (SpiInstance == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ ASSERT (SpiInstance->StrapBaseAddress != 0);
+ //
+ // SC Strap Flash Address = FPSBA + RamAddr
+ //
+ StrapFlashAddr = SpiInstance->StrapBaseAddress + SoftStrapAddr;
+
+ Status = SendSpiCmd (FlashRegionDescriptor, FlashCycleRead, StrapFlashAddr, ByteCount, SoftStrapValue);
+ return Status;
+}
+
+/**
+ This function sends the programmed SPI command to the slave device.
+
+ @param[in] FlashRegionType The SPI Region type for flash cycle which is listed in the Descriptor
+ @param[in] FlashCycleType The Flash SPI cycle type list in HSFC (Hardware Sequencing Flash Control Register) register
+ @param[in] Address The Flash Linear Address must fall within a region for which BIOS has access permissions.
+ @param[in] ByteCount Number of bytes in the data portion of the SPI cycle.
+ @param[in,out] Buffer Pointer to caller-allocated buffer containing the data received or sent during the SPI cycle.
+
+ @retval EFI_SUCCESS SPI command completes successfully.
+ @retval EFI_DEVICE_ERROR Device error, the command aborts abnormally.
+ @retval EFI_ACCESS_DENIED Some unrecognized command encountered in hardware sequencing mode
+ @retval EFI_INVALID_PARAMETER The parameters specified are not valid.
+**/
+EFI_STATUS
+SendSpiCmd (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ IN FLASH_CYCLE_TYPE FlashCycleType,
+ IN UINT32 Address,
+ IN UINT32 ByteCount,
+ IN OUT UINT8 *Buffer
+ )
+{
+ EFI_STATUS Status;
+ UINT32 Index;
+ UINTN SpiBaseAddress;
+ UINT32 ScSpiBar0;
+ UINT32 LimitAddress;
+ UINT32 HardwareSpiAddr;
+ UINT16 PermissionBit;
+ UINT32 SpiDataCount;
+ UINT32 FlashCycle;
+ UINT8 BiosCtlSave;
+ SPI_INSTANCE *SpiInstance;
+ UINT32 Data32;
+
+ SpiInstance = GetSpiInstance ();
+ if (SpiInstance == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ Status = EFI_SUCCESS;
+ SpiBaseAddress = SpiInstance->PchSpiBase;
+ ScSpiBar0 = AcquireSpiBar0 (SpiBaseAddress);
+ BiosCtlSave = 0;
+ SpiInstance->RegionPermission = MmioRead16 (ScSpiBar0 + R_SPI_FRAP);
+
+ //
+ // If it's write cycle, disable Prefetching, Caching and disable BIOS Write Protect
+ //
+ if ((FlashCycleType == FlashCycleWrite) || (FlashCycleType == FlashCycleErase)) {
+ Status = DisableBiosWriteProtect (SpiBaseAddress, mSpiInstance->Flags & FLAGS_SPI_DISABLE_SMM_WRITE_PROTECT);
+ if (EFI_ERROR (Status)) {
+ goto SendSpiCmdEnd;
+ }
+ BiosCtlSave = SaveAndDisableSpiPrefetchCache (SpiBaseAddress);
+ }
+
+ //
+ // Make sure it's safe to program the command.
+ //
+ if (!WaitForSpiCycleComplete (ScSpiBar0, FALSE)) {
+ Status = EFI_DEVICE_ERROR;
+ goto SendSpiCmdEnd;
+ }
+
+ HardwareSpiAddr = Address;
+ if ((FlashCycleType == FlashCycleRead) ||
+ (FlashCycleType == FlashCycleWrite) ||
+ (FlashCycleType == FlashCycleErase)) {
+
+ switch (FlashRegionType) {
+ case FlashRegionDescriptor:
+ if (FlashCycleType == FlashCycleRead) {
+ PermissionBit = B_SPI_FRAP_BRRA_FLASHD;
+ } else {
+ PermissionBit = B_SPI_FRAP_BRWA_FLASHD;
+ }
+ Data32 = MmioRead32 (ScSpiBar0 + R_SPI_FREG0_FLASHD);
+ HardwareSpiAddr += (Data32 & B_SPI_FREG0_BASE_MASK) << N_SPI_FREG0_BASE;
+ LimitAddress = (Data32 & B_SPI_FREG0_LIMIT_MASK) >> N_SPI_FREG0_LIMIT;
+ break;
+
+ case FlashRegionBios:
+ if (FlashCycleType == FlashCycleRead) {
+ PermissionBit = B_SPI_FRAP_BRRA_BIOS;
+ } else {
+ PermissionBit = B_SPI_FRAP_BRWA_BIOS;
+ }
+ Data32 = MmioRead32 (ScSpiBar0 + R_SPI_FREG1_BIOS);
+ HardwareSpiAddr += (Data32 & B_SPI_FREG1_BASE_MASK) << N_SPI_FREG1_BASE;
+ LimitAddress = (Data32 & B_SPI_FREG1_LIMIT_MASK) >> N_SPI_FREG1_LIMIT;
+ break;
+
+ case FlashRegionMe:
+ if (FlashCycleType == FlashCycleRead) {
+ PermissionBit = B_SPI_FRAP_BRRA_SEC;
+ } else {
+ PermissionBit = B_SPI_FRAP_BRWA_SEC;
+ }
+ Data32 = MmioRead32 (ScSpiBar0 + R_SPI_FREG2_SEC);
+ HardwareSpiAddr += (Data32 & B_SPI_FREG2_BASE_MASK) << N_SPI_FREG2_BASE;
+ LimitAddress = (Data32 & B_SPI_FREG2_LIMIT_MASK) >> N_SPI_FREG2_LIMIT;
+ break;
+
+ case FlashRegionGbE:
+ if (FlashCycleType == FlashCycleRead) {
+ PermissionBit = B_SPI_FRAP_BRRA_GBE;
+ } else {
+ PermissionBit = B_SPI_FRAP_BRWA_GBE;
+ }
+ Data32 = MmioRead32 (ScSpiBar0 + R_SPI_FREG3_GBE);
+ HardwareSpiAddr += (Data32 & B_SPI_FREG3_BASE_MASK) << N_SPI_FREG3_BASE;
+ LimitAddress = (Data32 & B_SPI_FREG3_LIMIT_MASK) >> N_SPI_FREG3_LIMIT;
+ break;
+
+ case FlashRegionPlatformData:
+ if (FlashCycleType == FlashCycleRead) {
+ PermissionBit = B_SPI_FRAP_BRRA_PLATFORM;
+ } else {
+ PermissionBit = B_SPI_FRAP_BRWA_PLATFORM;
+ }
+ Data32 = MmioRead32 (ScSpiBar0 + R_SPI_FREG4_PLATFORM_DATA);
+ HardwareSpiAddr += (Data32 & B_SPI_FREG4_BASE_MASK) << N_SPI_FREG4_BASE;
+ LimitAddress = (Data32 & B_SPI_FREG4_LIMIT_MASK) >> N_SPI_FREG4_LIMIT;
+ break;
+
+ case FlashRegionAll:
+ //
+ // FlashRegionAll indicates address is relative to flash device
+ // No error checking for this case
+ //
+ LimitAddress = 0;
+ PermissionBit = 0;
+ break;
+
+ default:
+ Status = EFI_UNSUPPORTED;
+ goto SendSpiCmdEnd;
+ }
+
+ if ((LimitAddress != 0) && (Address > LimitAddress)) {
+ Status = EFI_INVALID_PARAMETER;
+ goto SendSpiCmdEnd;
+ }
+
+ //
+ // If the operation is read, but the region attribute is not read allowed, return error.
+ // If the operation is write, but the region attribute is not write allowed, return error.
+ //
+ if ((PermissionBit != 0) && ((SpiInstance->RegionPermission & PermissionBit) == 0)) {
+ Status = EFI_ACCESS_DENIED;
+ goto SendSpiCmdEnd;
+ }
+ }
+
+ //
+ // Check for SC SPI hardware sequencing required commands
+ //
+ FlashCycle = 0;
+ switch (FlashCycleType) {
+ case FlashCycleRead:
+ FlashCycle = (UINT32) (V_SPI_HSFS_CYCLE_READ << N_SPI_HSFS_CYCLE);
+ break;
+
+ case FlashCycleWrite:
+ FlashCycle = (UINT32) (V_SPI_HSFS_CYCLE_WRITE << N_SPI_HSFS_CYCLE);
+ break;
+
+ case FlashCycleErase:
+ if (((ByteCount % SIZE_4KB) != 0) || ((HardwareSpiAddr % SIZE_4KB) != 0)) {
+ DEBUG ((DEBUG_ERROR, "Erase and erase size must be 4KB aligned. \n"));
+ ASSERT (FALSE);
+ Status = EFI_INVALID_PARAMETER;
+ goto SendSpiCmdEnd;
+ }
+ break;
+
+ case FlashCycleReadSfdp:
+ FlashCycle = (UINT32) (V_SPI_HSFS_CYCLE_READ_SFDP << N_SPI_HSFS_CYCLE);
+ break;
+
+ case FlashCycleReadJedecId:
+ FlashCycle = (UINT32) (V_SPI_HSFS_CYCLE_READ_JEDEC_ID << N_SPI_HSFS_CYCLE);
+ break;
+
+ case FlashCycleWriteStatus:
+ FlashCycle = (UINT32) (V_SPI_HSFS_CYCLE_WRITE_STATUS << N_SPI_HSFS_CYCLE);
+ break;
+
+ case FlashCycleReadStatus:
+ FlashCycle = (UINT32) (V_SPI_HSFS_CYCLE_READ_STATUS << N_SPI_HSFS_CYCLE);
+ break;
+
+ default:
+ //
+ // Unrecognized Operation
+ //
+ ASSERT (FALSE);
+ Status = EFI_INVALID_PARAMETER;
+ goto SendSpiCmdEnd;
+ break;
+ }
+
+ do {
+ SpiDataCount = ByteCount;
+ if ((FlashCycleType == FlashCycleRead) || (FlashCycleType == FlashCycleWrite)) {
+ //
+ // Trim at 256 byte boundary per operation,
+ // - SC SPI controller requires trimming at 4KB boundary
+ // - Some SPI chips require trimming at 256 byte boundary for write operation
+ // - Trimming has limited performance impact as we can read / write at most 64 byte
+ // per operation
+ //
+ if (HardwareSpiAddr + ByteCount > ((HardwareSpiAddr + BIT8) &~(BIT8 - 1))) {
+ SpiDataCount = (((UINT32) (HardwareSpiAddr) + BIT8) &~(BIT8 - 1)) - (UINT32) (HardwareSpiAddr);
+ }
+ //
+ // Calculate the number of bytes to shift in/out during the SPI data cycle.
+ // Valid settings for the number of bytes during each data portion of the
+ // SC SPI cycles are: 0, 1, 2, 3, 4, 5, 6, 7, 8, 16, 24, 32, 40, 48, 56, 64
+ //
+ if (SpiDataCount >= 64) {
+ SpiDataCount = 64;
+ } else if ((SpiDataCount &~0x07) != 0) {
+ SpiDataCount = SpiDataCount &~0x07;
+ }
+ }
+
+ if (FlashCycleType == FlashCycleErase) {
+ if (((ByteCount / SIZE_64KB) != 0) &&
+ ((ByteCount % SIZE_64KB) == 0) &&
+ ((HardwareSpiAddr % SIZE_64KB) == 0)) {
+ if (HardwareSpiAddr < SpiInstance->Component1StartAddr) {
+ //
+ // Check whether Component0 support 64k Erase
+ //
+ if ((SpiInstance->SfdpVscc0Value & B_SPI_LVSCC_EO_64K) != 0) {
+ SpiDataCount = SIZE_64KB;
+ } else {
+ SpiDataCount = SIZE_4KB;
+ }
+ } else {
+ //
+ // Check whether Component1 support 64k Erase
+ //
+ if ((SpiInstance->SfdpVscc1Value & B_SPI_LVSCC_EO_64K) != 0) {
+ SpiDataCount = SIZE_64KB;
+ } else {
+ SpiDataCount = SIZE_4KB;
+ }
+ }
+ } else {
+ SpiDataCount = SIZE_4KB;
+ }
+ if (SpiDataCount == SIZE_4KB) {
+ FlashCycle = (UINT32) (V_SPI_HSFS_CYCLE_4K_ERASE << N_SPI_HSFS_CYCLE);
+ } else {
+ FlashCycle = (UINT32) (V_SPI_HSFS_CYCLE_64K_ERASE << N_SPI_HSFS_CYCLE);
+ }
+ }
+
+ //
+ // If it's write cycle, load data into the SPI data buffer.
+ //
+ if ((FlashCycleType == FlashCycleWrite) || (FlashCycleType == FlashCycleWriteStatus)) {
+ if ((SpiDataCount & 0x07) != 0) {
+ //
+ // Use Byte write if Data Count is 0, 1, 2, 3, 4, 5, 6, 7
+ //
+ for (Index = 0; Index < SpiDataCount; Index++) {
+ MmioWrite8 (ScSpiBar0 + R_SPI_FDATA00 + Index, Buffer[Index]);
+ }
+ } else {
+ //
+ // Use Dword write if Data Count is 8, 16, 24, 32, 40, 48, 56, 64
+ //
+ for (Index = 0; Index < SpiDataCount; Index += sizeof (UINT32)) {
+ MmioWrite32 (ScSpiBar0 + R_SPI_FDATA00 + Index, *(UINT32 *) (Buffer + Index));
+ }
+ }
+ }
+
+ //
+ // Set the Flash Address
+ //
+ MmioWrite32 (ScSpiBar0 + R_SPI_FADDR, (UINT32) (HardwareSpiAddr & B_SPI_FADDR_MASK));
+
+ //
+ // Set Data count, Flash cycle, and Set Go bit to start a cycle
+ //
+ MmioAndThenOr32 (
+ ScSpiBar0 + R_SPI_HSFS,
+ (UINT32) (~(B_SPI_HSFS_FDBC_MASK | B_SPI_HSFS_CYCLE_MASK)),
+ (UINT32) (((SpiDataCount - 1) << N_SPI_HSFS_FDBC) | FlashCycle | B_SPI_HSFS_CYCLE_FGO)
+ );
+
+ //
+ // Wait for command execution complete.
+ //
+ if (!WaitForSpiCycleComplete (ScSpiBar0, TRUE)) {
+ Status = EFI_DEVICE_ERROR;
+ goto SendSpiCmdEnd;
+ }
+
+ //
+ // If it's read cycle, load data into the caller's buffer.
+ //
+ if ((FlashCycleType == FlashCycleRead) ||
+ (FlashCycleType == FlashCycleReadSfdp) ||
+ (FlashCycleType == FlashCycleReadJedecId) ||
+ (FlashCycleType == FlashCycleReadStatus)) {
+ if ((SpiDataCount & 0x07) != 0) {
+ //
+ // Use Byte read if Data Count is 0, 1, 2, 3, 4, 5, 6, 7
+ //
+ for (Index = 0; Index < SpiDataCount; Index++) {
+ Buffer[Index] = MmioRead8 (ScSpiBar0 + R_SPI_FDATA00 + Index);
+ }
+ } else {
+ //
+ // Use Dword read if Data Count is 8, 16, 24, 32, 40, 48, 56, 64
+ //
+ for (Index = 0; Index < SpiDataCount; Index += sizeof (UINT32)) {
+ *(UINT32 *) (Buffer + Index) = MmioRead32 (ScSpiBar0 + R_SPI_FDATA00 + Index);
+ }
+ }
+ }
+
+ HardwareSpiAddr += SpiDataCount;
+ Buffer += SpiDataCount;
+ ByteCount -= SpiDataCount;
+ } while (ByteCount > 0);
+
+SendSpiCmdEnd:
+ ///
+ /// Restore the settings for SPI Prefetching and Caching and enable BIOS Write Protect
+ ///
+ if ((FlashCycleType == FlashCycleWrite) || (FlashCycleType == FlashCycleErase)) {
+ EnableBiosWriteProtect (SpiBaseAddress, mSpiInstance->Flags & FLAGS_SPI_DISABLE_SMM_WRITE_PROTECT);
+ SetSpiBiosControlRegister (SpiBaseAddress, BiosCtlSave);
+ }
+
+ ReleaseSpiBar0 (SpiBaseAddress);
+
+ return Status;
+}
+
+/**
+ Wait execution cycle to complete on the SPI interface.
+
+ @param[in] ScSpiBar0 Spi MMIO base address
+ @param[in] ErrorCheck TRUE if the SpiCycle needs to do the error check
+
+ @retval TRUE SPI cycle completed on the interface.
+ @retval FALSE Time out while waiting the SPI cycle to complete.
+ It's not safe to program the next command on the SPI interface.
+**/
+BOOLEAN
+WaitForSpiCycleComplete (
+ IN UINT32 ScSpiBar0,
+ IN BOOLEAN ErrorCheck
+ )
+{
+ UINT64 WaitTicks;
+ UINT64 WaitCount;
+ UINT32 Data32;
+
+ //
+ // Convert the wait period allowed into to tick count
+ //
+ WaitCount = WAIT_TIME / WAIT_PERIOD;
+ //
+ // Wait for the SPI cycle to complete.
+ //
+ for (WaitTicks = 0; WaitTicks < WaitCount; WaitTicks++) {
+ Data32 = MmioRead32 (ScSpiBar0 + R_SPI_HSFS);
+ if ((Data32 & B_SPI_HSFS_SCIP) == 0) {
+ MmioWrite32 (ScSpiBar0 + R_SPI_HSFS, B_SPI_HSFS_FCERR | B_SPI_HSFS_FDONE);
+ if (((Data32 & B_SPI_HSFS_FCERR) != 0) && ErrorCheck) {
+ return FALSE;
+ } else {
+ return TRUE;
+ }
+ }
+ MicroSecondDelay ( WAIT_PERIOD);
+ }
+ return FALSE;
+}
+
+/**
+ Get the SPI region base and size, based on the enum type
+
+ @param[in] FlashRegionType The Flash Region type for for the base address which is listed in the Descriptor.
+ @param[out] BaseAddress The Flash Linear Address for the Region 'n' Base
+ @param[out] RegionSize The size for the Region 'n'
+
+ @retval EFI_SUCCESS Read success
+ @retval EFI_INVALID_PARAMETER Invalid region type given
+ @retval EFI_DEVICE_ERROR The region is not used
+**/
+EFI_STATUS
+EFIAPI
+SpiGetRegionAddress (
+ IN FLASH_REGION_TYPE FlashRegionType,
+ OUT UINT32 *BaseAddress, OPTIONAL
+ OUT UINT32 *RegionSize OPTIONAL
+ )
+{
+ UINT32 ScSpiBar0;
+ UINT32 ReadValue;
+ UINT32 Base;
+ SPI_INSTANCE *SpiInstance;
+
+ if (FlashRegionType >= FlashRegionMax) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ SpiInstance = GetSpiInstance();
+ if (SpiInstance == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ if (FlashRegionType == FlashRegionAll) {
+ if (BaseAddress != NULL) {
+ *BaseAddress = 0;
+ }
+ if (RegionSize != NULL) {
+ *RegionSize = SpiInstance->Component1StartAddr;
+ }
+ return EFI_SUCCESS;
+ }
+
+ ScSpiBar0 = AcquireSpiBar0 (SpiInstance->PchSpiBase);
+ ReadValue = MmioRead32 (ScSpiBar0 + R_SPI_FREG0_FLASHD + S_SPI_FREGX * (UINT32) FlashRegionType);
+ ReleaseSpiBar0 (SpiInstance->PchSpiBase);
+
+ //
+ // If the region is not used, the Region Base is 7FFFh and Region Limit is 0000h
+ //
+ if (ReadValue == B_SPI_FREGX_BASE_MASK) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ Base = (ReadValue & B_SPI_FREG1_BASE_MASK) << N_SPI_FREG1_BASE;
+ if (BaseAddress != NULL) {
+ *BaseAddress = Base;
+ }
+
+ if (RegionSize != NULL) {
+ *RegionSize = ((((ReadValue & B_SPI_FREGX_LIMIT_MASK) >> N_SPI_FREGX_LIMIT) + 1) <<
+ N_SPI_FREGX_LIMIT_REPR) - Base;
+ }
+
+ return EFI_SUCCESS;
+}
+
diff --git a/UefiPayloadPkg/Library/SpiFlashLib/SpiFlashLib.inf b/UefiPayloadPkg/Library/SpiFlashLib/SpiFlashLib.inf
new file mode 100644
index 0000000000..3e023079fc
--- /dev/null
+++ b/UefiPayloadPkg/Library/SpiFlashLib/SpiFlashLib.inf
@@ -0,0 +1,48 @@
+## @file
+# Library instance for SPI flash library using SPI hardware sequence
+#
+# Copyright (c) 2014 - 2021, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = SpiFlashLib
+ FILE_GUID = 6F96AFCB-DE89-4ca1-A63F-8703EE8FDE50
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = SpiFlashLib
+ CONSTRUCTOR = SpiConstructor
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ RegsSpi.h
+ SpiCommon.h
+ PchSpi.c
+ SpiFlashLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ UefiPayloadPkg/UefiPayloadPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ PcdLib
+ IoLib
+ PciLib
+ HobLib
+ TimerLib
+ BaseLib
+
+[Guids]
+ gSpiFlashInfoGuid
+
+[Pcd]
+ gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
diff --git a/UefiPayloadPkg/UefiPayloadPkg.dec b/UefiPayloadPkg/UefiPayloadPkg.dec
index 4c3bd0c2eb..3ffdce550d 100644
--- a/UefiPayloadPkg/UefiPayloadPkg.dec
+++ b/UefiPayloadPkg/UefiPayloadPkg.dec
@@ -37,6 +37,7 @@
gUefiSerialPortInfoGuid = { 0x6c6872fe, 0x56a9, 0x4403, { 0xbb, 0x98, 0x95, 0x8d, 0x62, 0xde, 0x87, 0xf1 } }
gLoaderMemoryMapInfoGuid = { 0xa1ff7424, 0x7a1a, 0x478e, { 0xa9, 0xe4, 0x92, 0xf3, 0x57, 0xd1, 0x28, 0x32 } }
+ gSpiFlashInfoGuid = { 0x2d4aac1b, 0x91a5, 0x4cd5, { 0x9b, 0x5c, 0xb4, 0x0f, 0x5d, 0x28, 0x51, 0xa1 } }
gSmmRegisterInfoGuid = { 0xaa9bd7a7, 0xcafb, 0x4499, { 0xa4, 0xa9, 0xb, 0x34, 0x6b, 0x40, 0xa6, 0x22 } }
gS3CommunicationGuid = { 0x88e31ba1, 0x1856, 0x4b8b, { 0xbb, 0xdf, 0xf8, 0x16, 0xdd, 0x94, 0xa, 0xef } }
--
2.32.0.windows.2
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