mirror of https://github.com/acidanthera/audk.git
ArmPlatformPkg/ArmVExpressDxe: remove FDT handling from ArmFvpDxe
Replace the elaborate but awkward handling of FDT images using device paths and string PCDs initialized to 128 spaces with a simple scheme involving a set of builtin DTBs and a bit of runtime logic to select between them. This is sufficient for ordinary use, which makes it more suitable as reference code. Note that overriding the DTB presented to the OS can easily be done with a UEFI application that simply installs a new DTB image under the existing FDT configuration table GUID. For this module, this simply involves removing all code that is involved in deciding which platform we are running on, and for reasoning about FDT device paths. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
This commit is contained in:
Ard Biesheuvel
parent
7004b3e4a8
commit
971a2d520e
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@ -1,113 +0,0 @@
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/** @file
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Copyright (c) 2014-2015, ARM Ltd. All rights reserved.
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
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WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "ArmVExpressInternal.h"
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#include <Library/ArmGicLib.h>
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//
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// Description of the AARCH64 model platforms :
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// Platform ids are defined in ArmVExpressInternal.h for
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// all "ArmVExpress-like" platforms (AARCH64 or ARM architecture,
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// model or hardware platforms).
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//
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CONST ARM_VEXPRESS_PLATFORM ArmVExpressPlatforms[] = {
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{ ARM_FVP_VEXPRESS_AEMv8x4, FixedPcdGetPtr (PcdFdtFvpVExpressAEMv8x4), L"rtsm_ve-aemv8a.dtb" },
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{ ARM_FVP_BASE_AEMv8x4_AEMv8x4_GICV2, FixedPcdGetPtr (PcdFdtFvpBaseAEMv8x4GicV2), L"fvp-base-gicv2-psci.dtb" },
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{ ARM_FVP_BASE_AEMv8x4_AEMv8x4_GICV2_LEGACY, FixedPcdGetPtr (PcdFdtFvpBaseAEMv8x4GicV2Legacy), L"fvp-base-gicv2legacy-psci.dtb" },
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{ ARM_FVP_BASE_AEMv8x4_AEMv8x4_GICV3, FixedPcdGetPtr (PcdFdtFvpBaseAEMv8x4GicV3), L"fvp-base-gicv3-psci.dtb" },
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{ ARM_FVP_FOUNDATION_GICV2, FixedPcdGetPtr (PcdFdtFvpFoundationGicV2), L"fvp-foundation-gicv2-psci.dtb" },
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{ ARM_FVP_FOUNDATION_GICV2_LEGACY, FixedPcdGetPtr (PcdFdtFvpFoundationGicV2Legacy), L"fvp-foundation-gicv2legacy-psci.dtb" },
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{ ARM_FVP_FOUNDATION_GICV3, FixedPcdGetPtr (PcdFdtFvpFoundationGicV3), L"fvp-foundation-gicv3-psci.dtb" },
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{ ARM_FVP_VEXPRESS_UNKNOWN }
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};
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/**
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Get information about the VExpress platform the firmware is running on.
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@param[out] Platform Address where the pointer to the platform information
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(type ARM_VEXPRESS_PLATFORM*) should be stored.
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The returned pointer does not point to an allocated
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memory area.
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@retval EFI_SUCCESS The platform information was returned.
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@retval EFI_NOT_FOUND The platform was not recognised.
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**/
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EFI_STATUS
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ArmVExpressGetPlatform (
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OUT CONST ARM_VEXPRESS_PLATFORM** Platform
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)
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{
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EFI_STATUS Status;
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UINT32 SysId;
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UINT32 FvpSysId;
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UINT32 VariantSysId;
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ARM_GIC_ARCH_REVISION GicRevision;
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ASSERT (Platform != NULL);
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Status = EFI_NOT_FOUND;
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SysId = MmioRead32 (ARM_VE_SYS_ID_REG);
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if (SysId != ARM_RTSM_SYS_ID) {
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// Remove the GIC variant to identify if we are running on the FVP Base or
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// Foundation models
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FvpSysId = SysId & (ARM_FVP_SYS_ID_HBI_MASK |
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ARM_FVP_SYS_ID_PLAT_MASK );
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// Extract the variant from the SysId
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VariantSysId = SysId & ARM_FVP_SYS_ID_VARIANT_MASK;
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if (FvpSysId == ARM_FVP_BASE_BOARD_SYS_ID) {
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if (VariantSysId == ARM_FVP_GIC_VE_MMAP) {
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// FVP Base Model with legacy GIC memory map
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Status = ArmVExpressGetPlatformFromId (ARM_FVP_BASE_AEMv8x4_AEMv8x4_GICV2_LEGACY, Platform);
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} else {
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GicRevision = ArmGicGetSupportedArchRevision ();
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if (GicRevision == ARM_GIC_ARCH_REVISION_2) {
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// FVP Base Model with GICv2 support
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Status = ArmVExpressGetPlatformFromId (ARM_FVP_BASE_AEMv8x4_AEMv8x4_GICV2, Platform);
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} else {
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// FVP Base Model with GICv3 support
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Status = ArmVExpressGetPlatformFromId (ARM_FVP_BASE_AEMv8x4_AEMv8x4_GICV3, Platform);
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}
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}
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} else if (FvpSysId == ARM_FVP_FOUNDATION_BOARD_SYS_ID) {
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if (VariantSysId == ARM_FVP_GIC_VE_MMAP) {
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// FVP Foundation Model with legacy GIC memory map
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Status = ArmVExpressGetPlatformFromId (ARM_FVP_FOUNDATION_GICV2_LEGACY, Platform);
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} else {
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GicRevision = ArmGicGetSupportedArchRevision ();
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if (GicRevision == ARM_GIC_ARCH_REVISION_2) {
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// FVP Foundation Model with GICv2
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Status = ArmVExpressGetPlatformFromId (ARM_FVP_FOUNDATION_GICV2, Platform);
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} else {
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// FVP Foundation Model with GICv3
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Status = ArmVExpressGetPlatformFromId (ARM_FVP_FOUNDATION_GICV3, Platform);
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}
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}
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}
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} else {
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// FVP Versatile Express AEMv8
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Status = ArmVExpressGetPlatformFromId (ARM_FVP_VEXPRESS_AEMv8x4, Platform);
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}
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if (EFI_ERROR (Status)) {
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DEBUG ((EFI_D_ERROR, "Unsupported AArch64 RTSM (SysId:0x%X).\n", SysId));
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ASSERT_EFI_ERROR (Status);
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}
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return Status;
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}
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@ -12,16 +12,15 @@
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**/
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#include "ArmVExpressInternal.h"
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#include <PiDxe.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/VirtioMmioDeviceLib.h>
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#include <Library/ArmShellCmdLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/DevicePathLib.h>
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#include <Protocol/FirmwareVolume2.h>
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#include <Library/ArmShellCmdLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/VirtioMmioDeviceLib.h>
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#include <VExpressMotherBoard.h>
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#define ARM_FVP_BASE_VIRTIO_BLOCK_BASE 0x1c130000
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@ -55,95 +54,6 @@ VIRTIO_BLK_DEVICE_PATH mVirtioBlockDevicePath =
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}
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};
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STATIC
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EFI_STATUS
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InternalFindFdtByGuid (
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IN OUT EFI_DEVICE_PATH **FdtDevicePath,
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IN CONST EFI_GUID *FdtGuid
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)
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{
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MEDIA_FW_VOL_FILEPATH_DEVICE_PATH FileDevicePath;
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EFI_HANDLE *HandleBuffer;
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UINTN HandleCount;
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UINTN Index;
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EFI_FIRMWARE_VOLUME2_PROTOCOL *FvProtocol;
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EFI_GUID NameGuid;
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UINTN Size;
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VOID *Key;
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EFI_FV_FILETYPE FileType;
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EFI_FV_FILE_ATTRIBUTES Attributes;
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EFI_DEVICE_PATH *FvDevicePath;
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EFI_STATUS Status;
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if (FdtGuid == NULL) {
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return EFI_NOT_FOUND;
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}
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EfiInitializeFwVolDevicepathNode (&FileDevicePath, FdtGuid);
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HandleBuffer = NULL;
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Status = gBS->LocateHandleBuffer (
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ByProtocol,
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&gEfiFirmwareVolume2ProtocolGuid,
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NULL,
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&HandleCount,
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&HandleBuffer
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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for (Index = 0; Index < HandleCount; Index++) {
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Status = gBS->HandleProtocol (
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HandleBuffer[Index],
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&gEfiFirmwareVolume2ProtocolGuid,
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(VOID **) &FvProtocol
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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// Allocate Key
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Key = AllocatePool (FvProtocol->KeySize);
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ASSERT (Key != NULL);
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ZeroMem (Key, FvProtocol->KeySize);
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do {
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FileType = EFI_FV_FILETYPE_RAW;
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Status = FvProtocol->GetNextFile (FvProtocol, Key, &FileType, &NameGuid, &Attributes, &Size);
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if (Status == EFI_NOT_FOUND) {
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break;
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}
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Check whether this file is the one we are looking for. If so,
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// create a device path for it and return it to the caller.
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//
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if (CompareGuid (&NameGuid, FdtGuid)) {
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Status = gBS->HandleProtocol (HandleBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID **)&FvDevicePath);
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if (!EFI_ERROR (Status)) {
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*FdtDevicePath = AppendDevicePathNode (FvDevicePath,
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(EFI_DEVICE_PATH_PROTOCOL *)&FileDevicePath);
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}
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goto Done;
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}
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} while (TRUE);
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FreePool (Key);
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}
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if (Index == HandleCount) {
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Status = EFI_NOT_FOUND;
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}
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return Status;
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Done:
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FreePool (Key);
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return Status;
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}
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/**
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* Generic UEFI Entrypoint for 'ArmFvpDxe' driver
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* See UEFI specification for the details of the parameters
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@ -155,12 +65,7 @@ ArmFvpInitialise (
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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CONST ARM_VEXPRESS_PLATFORM* Platform;
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EFI_STATUS Status;
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CHAR16 *TextDevicePath;
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UINTN TextDevicePathSize;
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VOID *Buffer;
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EFI_DEVICE_PATH *FdtDevicePath;
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Status = gBS->InstallProtocolInterface (&ImageHandle,
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&gEfiDevicePathProtocolGuid, EFI_NATIVE_INTERFACE,
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@ -169,38 +74,6 @@ ArmFvpInitialise (
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return Status;
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}
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Status = ArmVExpressGetPlatform (&Platform);
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if (!EFI_ERROR (Status)) {
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FdtDevicePath = NULL;
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Status = InternalFindFdtByGuid (&FdtDevicePath, Platform->FdtGuid);
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if (!EFI_ERROR (Status)) {
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TextDevicePath = ConvertDevicePathToText (FdtDevicePath, FALSE, FALSE);
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if (TextDevicePath != NULL) {
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TextDevicePathSize = StrSize (TextDevicePath);
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}
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FreePool (FdtDevicePath);
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} else {
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TextDevicePathSize = StrSize ((CHAR16*)PcdGetPtr (PcdFvpFdtDevicePathsBase)) - sizeof (CHAR16);
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TextDevicePathSize += StrSize (Platform->FdtName);
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TextDevicePath = AllocatePool (TextDevicePathSize);
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if (TextDevicePath != NULL) {
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StrCpy (TextDevicePath, ((CHAR16*)PcdGetPtr (PcdFvpFdtDevicePathsBase)));
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StrCat (TextDevicePath, Platform->FdtName);
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}
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}
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if (TextDevicePath != NULL) {
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Buffer = PcdSetPtr (PcdFdtDevicePaths, &TextDevicePathSize, TextDevicePath);
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if (Buffer == NULL) {
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DEBUG ((
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EFI_D_ERROR,
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"ArmFvpDxe: Setting of FDT device path in PcdFdtDevicePaths failed - %r\n", EFI_BUFFER_TOO_SMALL
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));
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}
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FreePool (TextDevicePath);
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}
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}
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// Declare the Virtio BlockIo device
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Status = VirtioMmioInstallDevice (ARM_FVP_BASE_VIRTIO_BLOCK_BASE, ImageHandle);
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if (EFI_ERROR (Status)) {
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@ -22,50 +22,17 @@
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[Sources.common]
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ArmFvpDxe.c
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ArmVExpressCommon.c
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[Sources.AARCH64]
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AArch64/ArmFvpDxeAArch64.c
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[Packages]
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MdePkg/MdePkg.dec
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ArmPkg/ArmPkg.dec
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ArmPlatformPkg/ArmPlatformPkg.dec
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ArmPlatformPkg/ArmVExpressPkg/ArmVExpressPkg.dec
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EmbeddedPkg/EmbeddedPkg.dec
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OvmfPkg/OvmfPkg.dec
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[LibraryClasses]
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PcdLib
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ArmShellCmdRunAxfLib
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ArmLib
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ArmPlatformLib
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BaseMemoryLib
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DxeServicesTableLib
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MemoryAllocationLib
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UefiDriverEntryPoint
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UefiBootServicesTableLib
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VirtioMmioDeviceLib
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DevicePathLib
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[LibraryClasses.AARCH64]
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ArmGicLib
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[Protocols]
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gEfiFirmwareVolume2ProtocolGuid
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gEfiDevicePathProtocolGuid
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[FixedPcd]
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gArmVExpressTokenSpaceGuid.PcdFvpFdtDevicePathsBase
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[FixedPcd.AARCH64]
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gArmVExpressTokenSpaceGuid.PcdFdtFvpVExpressAEMv8x4
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gArmVExpressTokenSpaceGuid.PcdFdtFvpBaseAEMv8x4GicV2
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gArmVExpressTokenSpaceGuid.PcdFdtFvpBaseAEMv8x4GicV2Legacy
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gArmVExpressTokenSpaceGuid.PcdFdtFvpBaseAEMv8x4GicV3
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gArmVExpressTokenSpaceGuid.PcdFdtFvpFoundationGicV2
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gArmVExpressTokenSpaceGuid.PcdFdtFvpFoundationGicV2Legacy
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gArmVExpressTokenSpaceGuid.PcdFdtFvpFoundationGicV3
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[Pcd]
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gEmbeddedTokenSpaceGuid.PcdFdtDevicePaths
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|
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@ -1,48 +0,0 @@
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/** @file
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Copyright (c) 2014, ARM Ltd. All rights reserved.
|
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|
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This program and the accompanying materials are licensed and made available
|
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under the terms and conditions of the BSD License which accompanies this
|
||||
distribution. The full text of the license may be found at
|
||||
http://opensource.org/licenses/bsd-license.php
|
||||
|
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
|
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WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
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|
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**/
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#include "ArmVExpressInternal.h"
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/**
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Get information about the VExpress platform the firmware is running on given its Id.
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@param[in] PlatformId Id of the VExpress platform.
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@param[out] Platform Address where the pointer to the platform information
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(type ARM_VEXPRESS_PLATFORM*) should be stored.
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The returned pointer does not point to an allocated
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memory area.
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@retval EFI_SUCCESS The platform information was returned.
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@retval EFI_NOT_FOUND The platform was not recognised.
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**/
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EFI_STATUS
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ArmVExpressGetPlatformFromId (
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IN CONST ARM_VEXPRESS_PLATFORM_ID PlatformId,
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OUT CONST ARM_VEXPRESS_PLATFORM** Platform
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)
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{
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UINTN Index;
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ASSERT (Platform != NULL);
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for (Index = 0; ArmVExpressPlatforms[Index].Id != ARM_FVP_VEXPRESS_UNKNOWN; Index++) {
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if (ArmVExpressPlatforms[Index].Id == PlatformId) {
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*Platform = &ArmVExpressPlatforms[Index];
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return EFI_SUCCESS;
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}
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}
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return EFI_NOT_FOUND;
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}
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@ -1,99 +0,0 @@
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/** @file
|
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|
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Copyright (c) 2014-2015, ARM Ltd. All rights reserved.
|
||||
|
||||
This program and the accompanying materials are licensed and made available
|
||||
under the terms and conditions of the BSD License which accompanies this
|
||||
distribution. The full text of the license may be found at
|
||||
http://opensource.org/licenses/bsd-license.php
|
||||
|
||||
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
|
||||
WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||||
|
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**/
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#ifndef __ARM_VEXPRESS_INTERNAL_H__
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#define __ARM_VEXPRESS_INTERNAL_H__
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#include <Uefi.h>
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#include <Library/ArmLib.h>
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#include <Library/DebugLib.h>
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#include <Library/IoLib.h>
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#include <Library/PcdLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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|
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#include <VExpressMotherBoard.h>
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// This 'enum' is needed as variations based on existing platform exist
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typedef enum {
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ARM_FVP_VEXPRESS_UNKNOWN = 0,
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ARM_FVP_VEXPRESS_A9x4,
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ARM_FVP_VEXPRESS_A15x1,
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ARM_FVP_VEXPRESS_A15x2,
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ARM_FVP_VEXPRESS_A15x4,
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ARM_FVP_VEXPRESS_A15x1_A7x1,
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ARM_FVP_VEXPRESS_A15x4_A7x4,
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ARM_FVP_VEXPRESS_AEMv8x4,
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ARM_FVP_BASE_AEMv8x4_AEMv8x4_GICV2,
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ARM_FVP_BASE_AEMv8x4_AEMv8x4_GICV2_LEGACY,
|
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ARM_FVP_BASE_AEMv8x4_AEMv8x4_GICV3,
|
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ARM_FVP_FOUNDATION_GICV2,
|
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ARM_FVP_FOUNDATION_GICV2_LEGACY,
|
||||
ARM_FVP_FOUNDATION_GICV3,
|
||||
ARM_HW_A9x4,
|
||||
ARM_HW_A15x2_A7x3,
|
||||
ARM_HW_A15,
|
||||
ARM_HW_A5
|
||||
} ARM_VEXPRESS_PLATFORM_ID;
|
||||
|
||||
typedef struct {
|
||||
ARM_VEXPRESS_PLATFORM_ID Id;
|
||||
|
||||
// Flattened Device Tree (FDT) File
|
||||
CONST EFI_GUID *FdtGuid; /// Name of the FDT when present into the FV
|
||||
CONST CHAR16 *FdtName; /// Name of the FDT when present into a File System
|
||||
} ARM_VEXPRESS_PLATFORM;
|
||||
|
||||
// Array that contains the list of the VExpress based platform supported by this DXE driver
|
||||
extern CONST ARM_VEXPRESS_PLATFORM ArmVExpressPlatforms[];
|
||||
|
||||
/**
|
||||
Get information about the VExpress platform the firmware is running on given its Id.
|
||||
|
||||
@param[in] PlatformId Id of the VExpress platform.
|
||||
@param[out] Platform Address where the pointer to the platform information
|
||||
(type ARM_VEXPRESS_PLATFORM*) should be stored.
|
||||
The returned pointer does not point to an allocated
|
||||
memory area.
|
||||
|
||||
@retval EFI_SUCCESS The platform information was returned.
|
||||
@retval EFI_NOT_FOUND The platform was not recognised.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
ArmVExpressGetPlatformFromId (
|
||||
IN CONST ARM_VEXPRESS_PLATFORM_ID PlatformId,
|
||||
OUT CONST ARM_VEXPRESS_PLATFORM** Platform
|
||||
);
|
||||
|
||||
/**
|
||||
|
||||
Get information about the VExpress platform the firmware is running on.
|
||||
|
||||
@param[out] Platform Address where the pointer to the platform information
|
||||
(type ARM_VEXPRESS_PLATFORM*) should be stored.
|
||||
The returned pointer does not point to an allocated
|
||||
memory area.
|
||||
|
||||
@retval EFI_SUCCESS The platform information was returned.
|
||||
@retval EFI_NOT_FOUND The platform was not recognised.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
ArmVExpressGetPlatform (
|
||||
OUT CONST ARM_VEXPRESS_PLATFORM** Platform
|
||||
);
|
||||
|
||||
#endif // __ARM_VEXPRESS_INTERNAL_H__
|
||||
|
|
@ -51,21 +51,3 @@
|
|||
# Device path of block device on which Fastboot will flash partitions
|
||||
#
|
||||
gArmVExpressTokenSpaceGuid.PcdAndroidFastbootNvmDevicePath|""|VOID*|0x00000004
|
||||
|
||||
# FVP platforms : install FDT from SemiHosting
|
||||
gArmVExpressTokenSpaceGuid.PcdFvpFdtDevicePathsBase|L"VenHw(C5B9C74A-6D72-4719-99AB-C59F199091EB)/"|VOID*|0x00000005
|
||||
# HW platforms : install FDT from NOR Flash
|
||||
gArmVExpressTokenSpaceGuid.PcdHwFdtDevicePathsBase|L"VenHw(E7223039-5836-41E1-B542-D7EC736C5E59)/"|VOID*|0x00000006
|
||||
|
||||
#
|
||||
# ARM Versatile Express FDT Guids
|
||||
#
|
||||
|
||||
# AArch64 FVP platforms
|
||||
gArmVExpressTokenSpaceGuid.PcdFdtFvpVExpressAEMv8x4|{ 0xa8, 0x95, 0x5f, 0xf6, 0x32, 0x7b, 0xf3, 0x16, 0x12, 0x32, 0x45, 0x50, 0xbd, 0x54, 0xca, 0xe5 }|VOID*|0x00000010
|
||||
gArmVExpressTokenSpaceGuid.PcdFdtFvpBaseAEMv8x4GicV2|{ 0x66, 0xcf, 0x57, 0xa4, 0xac, 0x7e, 0x7f, 0x3d, 0x21, 0x88, 0x3a, 0x58, 0x3c, 0x27, 0xd7, 0xe8 }|VOID*|0x00000011
|
||||
gArmVExpressTokenSpaceGuid.PcdFdtFvpBaseAEMv8x4GicV2Legacy|{ 0x8b, 0xcb, 0xe0, 0x14, 0xd1, 0x46, 0x79, 0xae, 0x7f, 0x20, 0xcf, 0x84, 0x22, 0xc7, 0x94, 0x4a }|VOID*|0x00000012
|
||||
gArmVExpressTokenSpaceGuid.PcdFdtFvpBaseAEMv8x4GicV3|{ 0x4d, 0x03, 0xb8, 0x77, 0x63, 0x25, 0x0a, 0x7f, 0xe9, 0x72, 0xfa, 0x68, 0x74, 0xc7, 0x5e, 0xb5 }|VOID*|0x00000013
|
||||
gArmVExpressTokenSpaceGuid.PcdFdtFvpFoundationGicV2|{ 0x36, 0x4f, 0x61, 0x92, 0x86, 0xb1, 0xa2, 0x16, 0x32, 0x65, 0x35, 0x3f, 0x01, 0xf3, 0x3b, 0x64 }|VOID*|0x00000014
|
||||
gArmVExpressTokenSpaceGuid.PcdFdtFvpFoundationGicV2Legacy|{ 0xf6, 0xcb, 0x9d, 0x86, 0x38, 0x74, 0x8a, 0xb0, 0xfe, 0x40, 0x08, 0x0f, 0x3f, 0xb3, 0x50, 0x7c }|VOID*|0x00000015
|
||||
gArmVExpressTokenSpaceGuid.PcdFdtFvpFoundationGicV3|{ 0x51, 0xd0, 0x75, 0x6b, 0x9d, 0x35, 0x1b, 0x1b, 0xa6, 0xc6, 0xab, 0xa0, 0x90, 0xf9, 0xf0, 0x0a }|VOID*|0x00000016
|
||||
|
|
|
|||
Loading…
Reference in New Issue