/** @file
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Scs policy
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Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _SCS_CONFIG_H_
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#define _SCS_CONFIG_H_
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#include <ConfigBlock.h>
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#include <PchLimits.h>
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#define SCS_SDCARD_CONFIG_REVISION 1
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#define SCS_EMMC_CONFIG_REVISION 1
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#define SCS_EMMC_DXE_CONFIG_REVISION 1
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#define SCS_SDCARD_MAX_DATA_GPIOS 4
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#define SCS_EMMC_MAX_DATA_GPIOS 8
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extern EFI_GUID gSdCardConfigGuid;
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extern EFI_GUID gEmmcConfigGuid;
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extern EFI_GUID gUfsConfigGuid;
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extern EFI_GUID gEmmcDxeConfigGuid;
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#pragma pack (push,1)
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/**
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This structre holds the DLL configuration
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register values that will be programmed by RC
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if EnableCustomDlls field is set to TRUE. Those
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policies should be used by platform if default values
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provided by RC are not sufficient to provide stable operation
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at all supported spped modes. RC will blindly set the DLL values
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as provided in this structre.
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For help with obtaining valid DLL values for your platform please
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contact enabling support.
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**/
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typedef struct {
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UINT32 TxCmdDelayControl; // Offset 820h: Tx CMD Delay Control
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UINT32 TxDataDelayControl1; // Offset 824h: Tx Data Delay Control 1
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UINT32 TxDataDelayControl2; // Offset 828h: Tx Data Delay Control 2
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UINT32 RxCmdDataDelayControl1; // Offset 82Ch: Rx CMD + Data Delay Control 1
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UINT32 RxCmdDataDelayControl2; // Offset 834h: Rx CMD + Data Delay Control 2
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UINT32 RxStrobeDelayControl; // Offset 830h: Rx Strobe Delay Control, valid only for eMMC
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} SCS_SD_DLL;
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/**
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SD GPIO settings
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**/
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typedef struct {
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/**
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GPIO signals pin muxing settings. If signal can be enable only on a single pin
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then this parameter should be set to 0. Refer to GPIO_*_MUXING_SDCARD_*x_* in GpioPins*.h
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for supported settings on a given platform
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**/
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UINT32 PinMux;
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/**
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GPIO Pads Internal Termination.
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For more information please see Platform Design Guide.
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Check GPIO_ELECTRICAL_CONFIG for reference
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**/
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UINT32 PadTermination;
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} MUX_GPIO_PARAM;
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typedef struct {
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MUX_GPIO_PARAM PowerEnable;
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MUX_GPIO_PARAM Cmd;
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MUX_GPIO_PARAM Data[SCS_SDCARD_MAX_DATA_GPIOS];
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MUX_GPIO_PARAM Cdb;
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MUX_GPIO_PARAM Clk;
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MUX_GPIO_PARAM Wp;
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} SCS_SDCARD_GPIO_CONFIG;
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typedef struct {
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MUX_GPIO_PARAM Cmd;
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MUX_GPIO_PARAM Data[SCS_EMMC_MAX_DATA_GPIOS];
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MUX_GPIO_PARAM Rclk;
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MUX_GPIO_PARAM Clk;
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MUX_GPIO_PARAM Resetb;
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} SCS_EMMC_GPIO_CONFIG;
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typedef struct {
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CONFIG_BLOCK_HEADER Header;
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UINT32 Enable : 1; ///< Enable/Disable SdCard 0: Disabled, <b>1: Enabled</b>
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UINT32 PowerEnableActiveHigh : 1; ///< Determine SD_PWREN# polarity 0: Active low, <b>1: Active high</b>
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UINT32 UseCustomDlls : 1; ///< Use tuned DLL values from policy <b>0: Use default DLL</b>, 1: Use values from TunedDllValues field
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UINT32 Reserved : 29;
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SCS_SD_DLL CustomDllValues; ///< Structure containing custom DLL values for SD card
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SCS_SDCARD_GPIO_CONFIG GpioConfig;
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} SCS_SDCARD_CONFIG;
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typedef struct {
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UINT32 Hs400RxValue : 7; ///< Value of the tuned HS400 Rx value
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UINT32 Hs400TxValue : 7; ///< Value of the tuned HS400 Tx value
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UINT32 Reserved : 18;
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} SCS_EMMC_TUNED_DLL;
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typedef struct {
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CONFIG_BLOCK_HEADER Header;
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UINT32 Enable : 1; ///< Enable/Disable eMMC 0: Disabled, <b>1: Enabled</b>
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UINT32 Hs400Supported : 1; ///< Enable/Disable eMMC HS400 support 0: Disabled, <b>1: Enabled</b>
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UINT32 UseCustomDlls : 1; ///< Use custom DLL values from policy <b>0: Use default DLL</b>, 1: Use values from TunedDllValues field
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UINT32 Reserved : 29;
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SCS_SD_DLL CustomDllValues; ///< Structure containing custom DLL values for eMMC ///< Structure containing tuned DLL settings for eMMC
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SCS_EMMC_GPIO_CONFIG GpioConfig;
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} SCS_EMMC_CONFIG;
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typedef enum {
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DriverStrength33Ohm = 0,
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DriverStrength40Ohm,
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DriverStrength50Ohm
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} SCS_EMMC_DRIVER_STRENGTH;
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typedef struct {
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UINT32 TuningSuccessful : 1; ///< Informs software tuning module about previous software tuning status.
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UINT32 Hs400RxValue : 7; ///< Value of the tuned HS400 Rx value returned from software tuning module
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UINT32 Hs400TxValue : 7; ///< Value of the tuned HS400 Tx value returned from software tuning module
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UINT32 Reserved : 17;
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} SCS_EMMC_SOFTWARE_TUNING_RESULTS;
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typedef struct {
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CONFIG_BLOCK_HEADER Header;
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UINT32 EnableSoftwareHs400Tuning : 1; ///< Enable/Disable software eMMC HS400 tuning: <b>0 - Disable</b>, 1 - Enable
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UINT32 DriverStrength : 2; ///< I/O driver strength: 0 - 33 Ohm, <b>1 - 40 Ohm</b>, 2 - 50 Ohm
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UINT32 Reserved : 29;
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EFI_LBA TuningLba; ///< Specifies LBA which will be used during software tuning process.
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SCS_EMMC_SOFTWARE_TUNING_RESULTS PreviousTuningResults; ///< Informes software tuning module about previous software tuning results.} SCS_EMMC_DXE_CONFIG;
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} SCS_EMMC_DXE_CONFIG;
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typedef struct {
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UINT32 Enable : 1; ///< Enable/Disable UFS controller 0: Disabled, <b>1: Enabled</b>
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UINT32 Reserved : 31;
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} SCS_UFS_CONTROLLER_CONFIG;
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#pragma pack (pop)
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#endif // _SCS_CONFIG_H_
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