SdMmcPciHcDxe/BayhubHost.c: add

Apply https://edk2.groups.io/g/devel/message/100548 in order to fix SD
cards not listing as bootable devices/mountable volumes.

Signed-off-by: Filip Lewinski <filip.lewinski@3mdeb.com>

MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/BayhubHost.h

@@ -0,0 +1,95 @@
+/** @file
+This driver is used to manage SD/MMC PCI host controllers override function
+for BayHub BH720 eMMC host controller.
+
+Copyright (c) 2018 - 2019, BayHub Tech inc. All rights reserved.
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef BAYHUB_HOST_H_
+#define BAYHUB_HOST_H_
+
+#include <Uefi.h>
+#include <Protocol/SdMmcOverride.h>
+#include <Protocol/PciIo.h>
+#include <Library/UefiLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Guid/DebugMask.h>
+
+// O2/BHT add BAR1 for PCIR mapping registers
+// These registers is defined by O2/BHT, but we may follow name definition rule.
+#define BHT_PCR_MAP_VAL  0x200    /* PCI CFG Space Register Mapping Value Register */
+#define BHT_PCR_MAP_CTL  0x204    /* PCI CFG Space Register Mapping Control Register */
+#define BHT_PCR_MAP_EN   0x208    /* PCI CFG Space Register Mapping Enable Register */
+#define BHT_GPIOCTL      0x210    /* GPIO control register*/
+
+#define HOST_CLK_DRIVE_STRENGTH  2
+#define HOST_DAT_DRIVE_STRENGTH  2
+#define HS200_ALLPASS_PHASE      0
+#define HS100_ALLPASS_PHASE      6
+
+#define UNSUPPORT  0
+#define SD_HOST    1
+#define EMMC_HOST  2
+
+#define PCI_DEV_ID_RJ    0x8320
+#define PCI_DEV_ID_SDS0  0x8420
+#define PCI_DEV_ID_SDS1  0x8421
+#define PCI_DEV_ID_FJ2   0x8520
+#define PCI_DEV_ID_SB0   0x8620
+#define PCI_DEV_ID_SB1   0x8621
+#define PCI_DEV_ID_SE2   0x8720
+
+/**
+  Override function for SDHCI capability bits
+
+  @param[in]      ControllerHandle      The EFI_HANDLE of the controller.
+  @param[in]      Slot                  The 0 based slot index.
+  @param[in,out]  SdMmcHcSlotCapability The SDHCI capability structure.
+  @param[in,out]  BaseClkFreq           The base clock frequency value that
+                                        optionally can be updated.
+
+  @retval EFI_SUCCESS           The override function completed successfully.
+  @retval EFI_NOT_FOUND         The specified controller or slot does not exist.
+  @retval EFI_INVALID_PARAMETER SdMmcHcSlotCapability is NULL
+
+**/
+EFI_STATUS
+EFIAPI
+BhtHostOverrideCapability (
+  IN      EFI_HANDLE  ControllerHandle,
+  IN      UINT8       Slot,
+  IN OUT  VOID        *SdMmcHcSlotCapability,
+  IN OUT  UINT32      *BaseClkFreq
+  );
+
+/**
+  Override function for SDHCI controller operations
+
+  @param[in]      ControllerHandle      The EFI_HANDLE of the controller.
+  @param[in]      Slot                  The 0 based slot index.
+  @param[in]      PhaseType             The type of operation and whether the
+                                        hook is invoked right before (pre) or
+                                        right after (post)
+  @param[in,out]  PhaseData             The pointer to a phase-specific data.
+
+  @retval EFI_SUCCESS           The override function completed successfully.
+  @retval EFI_NOT_FOUND         The specified controller or slot does not exist.
+  @retval EFI_INVALID_PARAMETER PhaseType is invalid
+
+**/
+EFI_STATUS
+EFIAPI
+BhtHostOverrideNotifyPhase (
+  IN      EFI_HANDLE               ControllerHandle,
+  IN      UINT8                    Slot,
+  IN      EDKII_SD_MMC_PHASE_TYPE  PhaseType,
+  IN OUT  VOID                     *PhaseData
+  );
+
+extern EDKII_SD_MMC_OVERRIDE  BhtOverride;
+
+#endif

MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c

@@ -13,6 +13,7 @@
 **/
 
 #include "SdMmcPciHcDxe.h"
+#include "BayhubHost.h"
 
 EDKII_SD_MMC_OVERRIDE  *mOverride;
 
@@ -136,6 +137,8 @@ InitializeSdMmcPciHcDxe (
              );
   ASSERT_EFI_ERROR (Status);
 
+  mOverride = &BhtOverride;
+
   return Status;
 }
 

MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.inf

@@ -41,6 +41,8 @@
   SdMmcPciHci.h
   SdMmcPciHci.c
   ComponentName.c
+  BayhubHost.c
+  BayhubHost.h
 
 [Packages]
   MdePkg/MdePkg.dec