Virtualization/edk2
1
0
Fork 0
mirror of https://gitlab.com/qemu-project/edk2.git synced 2025-06-29 04:33:04 +08:00
Code Issues Projects Releases Wiki Activity
Files
a8dc6bf73f789f38f2930641b20dfd6d9e38f411
edk2/EmbeddedPkg/Library/NorFlashInfoLib/NorFlashInfoLib.inf

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

28 lines
608 B
INI
Raw Normal View History

EmbeddedPkg: Implement NorFlashInfoLib The SPI NOR flash drivers which base on ArmPlatformPkg's NorFlashDxe usually make use of static declarations of the flash instances with their type and parameters. As a result it implies hardcoding the exact way of flash handling, not to mention the code does not look very nice. Much better solution would be obtaining the flash ID and hence its description in runtime. JEDEC compliant SPI NOR devices allow to obtain their IDs with READ_ID command (0x9f), which should return the vendor ID byte, followed by 2 to 4 following device ID bytes. Use this capability for implementing a NorFlashInfoLib that gives an access to the NOR flash description data, such as name, page size, sector (block) size and others, of more than 50 different models. The new library user should pass an output array from issuing READ_ID command to the NorFlashGetInfo () routine - if the match is found, an allocated (optionally for RT) pool with the flash description copy will be returned. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Marcin Wojtas <mw@semihalf.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-11-03 18:55:17 +01:00
/** @file
*
* Copyright (c) 2017 Marvell International Ltd.
*
EmbeddedPkg: Replace BSD License with BSD+Patent License https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2019-04-03 16:03:38 -07:00
* SPDX-License-Identifier: BSD-2-Clause-Patent
EmbeddedPkg: Implement NorFlashInfoLib The SPI NOR flash drivers which base on ArmPlatformPkg's NorFlashDxe usually make use of static declarations of the flash instances with their type and parameters. As a result it implies hardcoding the exact way of flash handling, not to mention the code does not look very nice. Much better solution would be obtaining the flash ID and hence its description in runtime. JEDEC compliant SPI NOR devices allow to obtain their IDs with READ_ID command (0x9f), which should return the vendor ID byte, followed by 2 to 4 following device ID bytes. Use this capability for implementing a NorFlashInfoLib that gives an access to the NOR flash description data, such as name, page size, sector (block) size and others, of more than 50 different models. The new library user should pass an output array from issuing READ_ID command to the NorFlashGetInfo () routine - if the match is found, an allocated (optionally for RT) pool with the flash description copy will be returned. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Marcin Wojtas <mw@semihalf.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-11-03 18:55:17 +01:00
*
**/
[Defines]
INF_VERSION = 0x00010019
BASE_NAME = NorFlashInfoLib
FILE_GUID = 6b639c7e-9b53-4e9f-89a3-2e711729709c
EmbeddedPkg/NorFlashInfoLib: convert to BASE library The library's MODULE_TYPE and the module type restrictions it defines are needlessly strict. Just change the library to BASE type and drop the restrictions entirely. Also, drop a bogus library dependency on DxeServicesLib. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2019-01-02 14:00:44 +01:00
MODULE_TYPE = BASE
EmbeddedPkg: Implement NorFlashInfoLib The SPI NOR flash drivers which base on ArmPlatformPkg's NorFlashDxe usually make use of static declarations of the flash instances with their type and parameters. As a result it implies hardcoding the exact way of flash handling, not to mention the code does not look very nice. Much better solution would be obtaining the flash ID and hence its description in runtime. JEDEC compliant SPI NOR devices allow to obtain their IDs with READ_ID command (0x9f), which should return the vendor ID byte, followed by 2 to 4 following device ID bytes. Use this capability for implementing a NorFlashInfoLib that gives an access to the NOR flash description data, such as name, page size, sector (block) size and others, of more than 50 different models. The new library user should pass an output array from issuing READ_ID command to the NorFlashGetInfo () routine - if the match is found, an allocated (optionally for RT) pool with the flash description copy will be returned. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Marcin Wojtas <mw@semihalf.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-11-03 18:55:17 +01:00
VERSION_STRING = 1.0
EmbeddedPkg/NorFlashInfoLib: convert to BASE library The library's MODULE_TYPE and the module type restrictions it defines are needlessly strict. Just change the library to BASE type and drop the restrictions entirely. Also, drop a bogus library dependency on DxeServicesLib. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2019-01-02 14:00:44 +01:00
LIBRARY_CLASS = NorFlashInfoLib
EmbeddedPkg: Implement NorFlashInfoLib The SPI NOR flash drivers which base on ArmPlatformPkg's NorFlashDxe usually make use of static declarations of the flash instances with their type and parameters. As a result it implies hardcoding the exact way of flash handling, not to mention the code does not look very nice. Much better solution would be obtaining the flash ID and hence its description in runtime. JEDEC compliant SPI NOR devices allow to obtain their IDs with READ_ID command (0x9f), which should return the vendor ID byte, followed by 2 to 4 following device ID bytes. Use this capability for implementing a NorFlashInfoLib that gives an access to the NOR flash description data, such as name, page size, sector (block) size and others, of more than 50 different models. The new library user should pass an output array from issuing READ_ID command to the NorFlashGetInfo () routine - if the match is found, an allocated (optionally for RT) pool with the flash description copy will be returned. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Marcin Wojtas <mw@semihalf.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-11-03 18:55:17 +01:00
[Sources]
NorFlashInfoLib.c
[Packages]
EmbeddedPkg/EmbeddedPkg.dec
MdePkg/MdePkg.dec
[LibraryClasses]
BaseLib
DebugLib
MemoryAllocationLib
Reference in New Issue Copy Permalink