diff options
| author | Olivier Martin <olivier.martin@arm.com> | 2015-05-29 13:50:43 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@Edk2> | 2015-05-29 13:50:43 +0000 |
| commit | 7fbd1eb2312d3dfab2ac8cdfcefc234c73d8aeeb (patch) | |
| tree | 0062d16f930c05cb0fe7e7eececca5f8fb91b18e /ArmVirtPkg/Library/PlatformPeiLib | |
| parent | 4c31caef17170dfd5bd7fe82b890078547750370 (diff) | |
| download | edk2-platforms-7fbd1eb2312d3dfab2ac8cdfcefc234c73d8aeeb.tar.xz | |
Renamed ArmPlatformPkg/ArmVirtualizationPkg into ArmVirtPkg
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17537 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmVirtPkg/Library/PlatformPeiLib')
| -rw-r--r-- | ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.c | 102 | ||||
| -rw-r--r-- | ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.inf | 52 |
2 files changed, 154 insertions, 0 deletions
diff --git a/ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.c b/ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.c new file mode 100644 index 0000000000..bdf2b57fcb --- /dev/null +++ b/ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.c @@ -0,0 +1,102 @@ +/** @file
+*
+* Copyright (c) 2011-2014, ARM Limited. All rights reserved.
+* Copyright (c) 2014, Linaro Limited. 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.
+*
+**/
+
+#include <PiPei.h>
+
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/PcdLib.h>
+#include <libfdt.h>
+
+#include <Guid/EarlyPL011BaseAddress.h>
+#include <Guid/FdtHob.h>
+
+EFI_STATUS
+EFIAPI
+PlatformPeim (
+ VOID
+ )
+{
+ VOID *Base;
+ VOID *NewBase;
+ UINTN FdtSize;
+ UINTN FdtPages;
+ UINT64 *FdtHobData;
+ UINT64 *UartHobData;
+ INT32 Node, Prev;
+ CONST CHAR8 *Compatible;
+ CONST CHAR8 *CompItem;
+ INT32 Len;
+ CONST UINT64 *RegProp;
+ UINT64 UartBase;
+
+
+ Base = (VOID*)(UINTN)PcdGet64 (PcdDeviceTreeInitialBaseAddress);
+ ASSERT (Base != NULL);
+ ASSERT (fdt_check_header (Base) == 0);
+
+ FdtSize = fdt_totalsize (Base) + PcdGet32 (PcdDeviceTreeAllocationPadding);
+ FdtPages = EFI_SIZE_TO_PAGES (FdtSize);
+ NewBase = AllocatePages (FdtPages);
+ ASSERT (NewBase != NULL);
+ fdt_open_into (Base, NewBase, EFI_PAGES_TO_SIZE (FdtPages));
+
+ FdtHobData = BuildGuidHob (&gFdtHobGuid, sizeof *FdtHobData);
+ ASSERT (FdtHobData != NULL);
+ *FdtHobData = (UINTN)NewBase;
+
+ UartHobData = BuildGuidHob (&gEarlyPL011BaseAddressGuid, sizeof *UartHobData);
+ ASSERT (UartHobData != NULL);
+ *UartHobData = 0;
+
+ //
+ // Look for a UART node
+ //
+ for (Prev = 0;; Prev = Node) {
+ Node = fdt_next_node (Base, Prev, NULL);
+ if (Node < 0) {
+ break;
+ }
+
+ //
+ // Check for UART node
+ //
+ Compatible = fdt_getprop (Base, Node, "compatible", &Len);
+
+ //
+ // Iterate over the NULL-separated items in the compatible string
+ //
+ for (CompItem = Compatible; CompItem != NULL && CompItem < Compatible + Len;
+ CompItem += 1 + AsciiStrLen (CompItem)) {
+
+ if (AsciiStrCmp (CompItem, "arm,pl011") == 0) {
+ RegProp = fdt_getprop (Base, Node, "reg", &Len);
+ ASSERT (Len == 16);
+
+ UartBase = fdt64_to_cpu (ReadUnaligned64 (RegProp));
+
+ DEBUG ((EFI_D_INFO, "%a: PL011 UART @ 0x%lx\n", __FUNCTION__, UartBase));
+
+ *UartHobData = UartBase;
+ break;
+ }
+ }
+ }
+
+ BuildFvHob (PcdGet64 (PcdFvBaseAddress), PcdGet32 (PcdFvSize));
+
+ return EFI_SUCCESS;
+}
diff --git a/ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.inf b/ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.inf new file mode 100644 index 0000000000..7d456ab3e3 --- /dev/null +++ b/ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.inf @@ -0,0 +1,52 @@ +#/** @file
+#
+# Copyright (c) 2011-2015, ARM Limited. All rights reserved.
+# Copyright (c) 2014, Linaro Limited. 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.
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PlatformPeiLib
+ FILE_GUID = 59C11815-F8DA-4F49-B4FB-EC1E41ED1F06
+ MODULE_TYPE = SEC
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PlatformPeiLib
+
+[Sources]
+ PlatformPeiLib.c
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ ArmVirtPkg/ArmVirtPkg.dec
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+
+[LibraryClasses]
+ DebugLib
+ HobLib
+ FdtLib
+
+[FixedPcd]
+ gArmTokenSpaceGuid.PcdFvSize
+ gArmVirtTokenSpaceGuid.PcdDeviceTreeAllocationPadding
+
+[Pcd]
+ gArmTokenSpaceGuid.PcdFvBaseAddress
+ gArmVirtTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress
+
+[Guids]
+ gEarlyPL011BaseAddressGuid
+ gFdtHobGuid
+
+[Depex]
+ gEfiPeiMemoryDiscoveredPpiGuid
|