On Mon, 4 Mar 2019 at 11:12, Jagadeesh Ujja <jagadeesh.u...@arm.com> wrote: > > “NorFlashPlatformLib” library can be used by MM_STANDALONE drivers as > well. When used in MM mode, the third instance of the NOR flash is used as > the non-volatile storage. This NOR flash instance is partitioned into > two regions - first 4MB space is used for secure boot and next 3MB for > secure variable storage > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Jagadeesh Ujja <jagadeesh.u...@arm.com> > --- > Platform/ARM/SgiPkg/Library/NorFlashLib/StandaloneMmNorFlashLib.c | 63 > ++++++++++++++++++++ > Platform/ARM/SgiPkg/Library/NorFlashLib/StandaloneMmNorFlashLib.inf | 35 > +++++++++++ > 2 files changed, 98 insertions(+) > > diff --git > a/Platform/ARM/SgiPkg/Library/NorFlashLib/StandaloneMmNorFlashLib.c > b/Platform/ARM/SgiPkg/Library/NorFlashLib/StandaloneMmNorFlashLib.c > new file mode 100644 > index 0000000..06e3f97 > --- /dev/null > +++ b/Platform/ARM/SgiPkg/Library/NorFlashLib/StandaloneMmNorFlashLib.c > @@ -0,0 +1,63 @@ > +/** @file > + > + Copyright (c) 2019, 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. > + > + **/ > + > +#include <PiMm.h> > +#include <Library/DebugLib.h> > +#include <Library/IoLib.h> > +#include <Library/NorFlashPlatformLib.h> > +#include <SgiPlatform.h> > + > +STATIC NOR_FLASH_DESCRIPTION mNorFlashDevices[] = { > + { > + // Secure Boot storage space of 4MB > + SGI_EXP_SMC_CS2_BASE, > + SGI_EXP_SMC_CS2_BASE, > + SIZE_256KB * 16, > + SIZE_256KB, > + }, > + { > + //Secure variable storage space of 1MB*3 > + SGI_EXP_SMC_CS2_BASE, > + SGI_EXP_SMC_CS2_BASE + SIZE_256KB * 16, > + SIZE_256KB * 12, > + SIZE_256KB, > + }, > +}; > + > +EFI_STATUS > +NorFlashPlatformInitialization ( > + VOID > + ) > +{ > + UINT64 SysRegFlash; > + > + SysRegFlash = SGI_EXP_SYSPH_SYSTEM_REGISTERS + SGI_SYSPH_SYS_REG_FLASH; > + MmioOr32 (SysRegFlash, SGI_SYSPH_SYS_REG_FLASH_RWEN); > + return EFI_SUCCESS; > +} > + > +EFI_STATUS > +NorFlashPlatformGetDevices ( > + OUT NOR_FLASH_DESCRIPTION **NorFlashDevices, > + OUT UINT32 *Count > + ) > +{ > + if ((NorFlashDevices == NULL) || (Count == NULL)) { > + return EFI_INVALID_PARAMETER; > + } > + > + *NorFlashDevices = mNorFlashDevices; > + *Count = ARRAY_SIZE (mNorFlashDevices); > + return EFI_SUCCESS; > +} > diff --git > a/Platform/ARM/SgiPkg/Library/NorFlashLib/StandaloneMmNorFlashLib.inf > b/Platform/ARM/SgiPkg/Library/NorFlashLib/StandaloneMmNorFlashLib.inf > new file mode 100644 > index 0000000..eedfacc > --- /dev/null > +++ b/Platform/ARM/SgiPkg/Library/NorFlashLib/StandaloneMmNorFlashLib.inf > @@ -0,0 +1,35 @@ > +#/** @file > +# > +# Copyright (c) 2019, 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. > +# > +#**/ > + > +[Defines] > + INF_VERSION = 0x0001001A > + BASE_NAME = NorFlashSgiLib > + FILE_GUID = 2ce22190-b933-4d1e-99ba-8bf1f0768255 > + MODULE_TYPE = MM_STANDALONE
Could this be BASE ? > + VERSION_STRING = 1.0 > + PI_SPECIFICATION_VERSION = 0x00010032 Can we drop this? > + LIBRARY_CLASS = NorFlashPlatformLib > + > +[Sources.common] > + StandaloneMmNorFlashLib.c > + > +[Packages] > + ArmPlatformPkg/ArmPlatformPkg.dec > + MdePkg/MdePkg.dec > + Platform/ARM/SgiPkg/SgiPlatform.dec > + > +[LibraryClasses] > + BaseLib > + DebugLib > + IoLib > -- > 2.7.4 > _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
