In order to be able to build ArmPlatformPkg components outside of
the context of a particular platform, add Null implementation of
NorFlashPlatformLib.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.c | 34 ++++++++++++++++++++
ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.inf | 30 +++++++++++++++++
2 files changed, 64 insertions(+)
diff --git a/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.c b/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.c
new file mode 100644
index 000000000000..264d18719763
--- /dev/null
+++ b/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.c
@@ -0,0 +1,34 @@
+/** @file
+
+ Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
+
+ 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 <Library/NorFlashPlatformLib.h>
+
+EFI_STATUS
+NorFlashPlatformInitialization (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+NorFlashPlatformGetDevices (
+ OUT NOR_FLASH_DESCRIPTION **NorFlashDescriptions,
+ OUT UINT32 *Count
+ )
+{
+ *NorFlashDescriptions = NULL;
+ *Count = 0;
+ return EFI_SUCCESS;
+}
diff --git a/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.inf b/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.inf
new file mode 100644
index 000000000000..777a629678e1
--- /dev/null
+++ b/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.inf
@@ -0,0 +1,30 @@
+#/** @file
+#
+# Component description file for NorFlashPlatformNullLib module
+#
+# Copyright (c) 2017, Linaro Ltd. All rights reserved.<BR>
+#
+# 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 = NorFlashPlatformNullLib
+ FILE_GUID = 29b733ad-d066-4df6-8a89-b9df1beb818a
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = NorFlashPlatformLib
+
+[Sources.common]
+ NorFlashPlatformNullLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ ArmPlatformPkg/ArmPlatformPkg.dec
--
2.11.0
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On Tue, Dec 05, 2017 at 10:13:25AM +0000, Ard Biesheuvel wrote:
> In order to be able to build ArmPlatformPkg components outside of
> the context of a particular platform, add Null implementation of
> NorFlashPlatformLib.
>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Question/comment:
Not only ARM Ltd. platforms implement this API.
Would it be worth moving this (as well as
ArmPlatformPkg/Include/Library/NorFlashPlatformLib.h) into EmbeddedPkg
and actually documenting the inputs/outputs?
/
Leif
> ---
> ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.c | 34 ++++++++++++++++++++
> ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.inf | 30 +++++++++++++++++
> 2 files changed, 64 insertions(+)
>
> diff --git a/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.c b/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.c
> new file mode 100644
> index 000000000000..264d18719763
> --- /dev/null
> +++ b/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.c
> @@ -0,0 +1,34 @@
> +/** @file
> +
> + Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
> +
> + 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 <Library/NorFlashPlatformLib.h>
> +
> +EFI_STATUS
> +NorFlashPlatformInitialization (
> + VOID
> + )
> +{
> + return EFI_SUCCESS;
> +}
> +
> +EFI_STATUS
> +NorFlashPlatformGetDevices (
> + OUT NOR_FLASH_DESCRIPTION **NorFlashDescriptions,
> + OUT UINT32 *Count
> + )
> +{
> + *NorFlashDescriptions = NULL;
> + *Count = 0;
> + return EFI_SUCCESS;
> +}
> diff --git a/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.inf b/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.inf
> new file mode 100644
> index 000000000000..777a629678e1
> --- /dev/null
> +++ b/ArmPlatformPkg/Library/NorFlashPlatformNullLib/NorFlashPlatformNullLib.inf
> @@ -0,0 +1,30 @@
> +#/** @file
> +#
> +# Component description file for NorFlashPlatformNullLib module
> +#
> +# Copyright (c) 2017, Linaro Ltd. All rights reserved.<BR>
> +#
> +# 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 = NorFlashPlatformNullLib
> + FILE_GUID = 29b733ad-d066-4df6-8a89-b9df1beb818a
> + MODULE_TYPE = DXE_DRIVER
> + VERSION_STRING = 1.0
> + LIBRARY_CLASS = NorFlashPlatformLib
> +
> +[Sources.common]
> + NorFlashPlatformNullLib.c
> +
> +[Packages]
> + MdePkg/MdePkg.dec
> + ArmPlatformPkg/ArmPlatformPkg.dec
> --
> 2.11.0
>
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On 8 December 2017 at 16:07, Leif Lindholm <leif.lindholm@linaro.org> wrote: > On Tue, Dec 05, 2017 at 10:13:25AM +0000, Ard Biesheuvel wrote: >> In order to be able to build ArmPlatformPkg components outside of >> the context of a particular platform, add Null implementation of >> NorFlashPlatformLib. >> >> Contributed-under: TianoCore Contribution Agreement 1.1 >> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> > > Question/comment: > Not only ARM Ltd. platforms implement this API. > Would it be worth moving this (as well as > ArmPlatformPkg/Include/Library/NorFlashPlatformLib.h) into EmbeddedPkg > and actually documenting the inputs/outputs? > I'd rather move away from the monolithical NOR flash drivers derived from ArmPlatformPkg/Drivers/NorFlashDxe, and move to split SPI host controller drivers and a generic SPI NOR flash driver based on NorFlashInfoLib. That's a rather sizable chunk of work, though, and I'm not sure when this will ever get done or by whom. _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
On Fri, Dec 08, 2017 at 04:13:10PM +0000, Ard Biesheuvel wrote:
> On 8 December 2017 at 16:07, Leif Lindholm <leif.lindholm@linaro.org> wrote:
> > On Tue, Dec 05, 2017 at 10:13:25AM +0000, Ard Biesheuvel wrote:
> >> In order to be able to build ArmPlatformPkg components outside of
> >> the context of a particular platform, add Null implementation of
> >> NorFlashPlatformLib.
> >>
> >> Contributed-under: TianoCore Contribution Agreement 1.1
> >> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> >
> > Question/comment:
> > Not only ARM Ltd. platforms implement this API.
> > Would it be worth moving this (as well as
> > ArmPlatformPkg/Include/Library/NorFlashPlatformLib.h) into EmbeddedPkg
> > and actually documenting the inputs/outputs?
>
> I'd rather move away from the monolithical NOR flash drivers derived
> from ArmPlatformPkg/Drivers/NorFlashDxe, and move to split SPI host
> controller drivers and a generic SPI NOR flash driver based on
> NorFlashInfoLib. That's a rather sizable chunk of work, though, and
> I'm not sure when this will ever get done or by whom.
Sure.
I'd complain if you were trying to move it into
edk2-platforms/Platform/ARM, but leaving this in ArmPlatformPkg seems
ok for a non-specified transitional period.
/
Leif
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