On 21 May 2018 at 10:25, Thomas Abraham <thomas.abra...@arm.com> wrote:
> From: Vishwanatha HG <vishwanatha...@arm.com>
>
> Add a initial NOR flash driver platform wrapper as part of the platform
> library. Access to NOR flash devices connected to CS0 and CS1 is enabled
> in this initial implementation.
>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Vishwanatha HG <vishwanatha...@arm.com>
> Signed-off-by: Thomas Abraham <thomas.abra...@arm.com>
> ---
> .../ARM/SgiPkg/Library/NorFlashLib/NorFlashLib.c | 66
> ++++++++++++++++++++++
> .../ARM/SgiPkg/Library/NorFlashLib/NorFlashLib.inf | 34 +++++++++++
> 2 files changed, 100 insertions(+)
> create mode 100644 Platform/ARM/SgiPkg/Library/NorFlashLib/NorFlashLib.c
> create mode 100644 Platform/ARM/SgiPkg/Library/NorFlashLib/NorFlashLib.inf
>
> diff --git a/Platform/ARM/SgiPkg/Library/NorFlashLib/NorFlashLib.c
> b/Platform/ARM/SgiPkg/Library/NorFlashLib/NorFlashLib.c
> new file mode 100644
> index 0000000..9b4981f
> --- /dev/null
> +++ b/Platform/ARM/SgiPkg/Library/NorFlashLib/NorFlashLib.c
> @@ -0,0 +1,66 @@
> +/** @file
> +
> + Copyright (c) 2018, 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 <PiDxe.h>
> +#include <Library/DebugLib.h>
> +#include <Library/IoLib.h>
> +#include <Library/NorFlashPlatformLib.h>
> +#include <SgiPlatform.h>
> +
> +STATIC NOR_FLASH_DESCRIPTION mNorFlashDevices[] = {
> + {
> + SGI_EXP_SMC_CS0_BASE,
> + SGI_EXP_SMC_CS0_BASE,
> + SIZE_256KB * 256,
> + SIZE_256KB,
> + {0xEBF0B9DF, 0x17d0, 0x4812, { 0xA9, 0x59, 0xCF, 0xD7, 0x92, 0xEE, 0x31,
> 0x13} }
> + },
> + {
> + SGI_EXP_SMC_CS1_BASE,
> + SGI_EXP_SMC_CS1_BASE,
> + SIZE_256KB * 256,
> + SIZE_256KB,
> + { 0x1F15DA3C, 0x37FF, 0x4070, { 0xB4, 0x71, 0xBB, 0x4A, 0xF1, 0x2A,
> 0x72, 0x4A } }
Please use consistent whitespace in these GUID definitions.
> + },
> +};
> +
> +EFI_STATUS
> +NorFlashPlatformInitialization (
> + VOID
> + )
> +{
> + UINT64 SysRegFlash;
> +
> + SysRegFlash = SGI_EXP_SYSPH_SYSTEM_REGISTERS + SGI_SYSPH_SYS_REG_FLASH;
> + if ((MmioRead32 (SysRegFlash) & SGI_SYSPH_SYS_REG_FLASH_RWEN) == 0) {
> + MmioWrite32 (SysRegFlash, 1);
SGI_SYSPH_SYS_REG_FLASH_RWEN?
Should you use MmioOr32() here? (I can't tell, I don't have the docs)
> + }
> +
> + 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/NorFlashLib.inf
> b/Platform/ARM/SgiPkg/Library/NorFlashLib/NorFlashLib.inf
> new file mode 100644
> index 0000000..3a6b33b
> --- /dev/null
> +++ b/Platform/ARM/SgiPkg/Library/NorFlashLib/NorFlashLib.inf
> @@ -0,0 +1,34 @@
> +#/** @file
> +#
> +# Copyright (c) 2018, 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 = 3f021755-6d74-4065-9ee4-98225267b36e
> + MODULE_TYPE = DXE_DRIVER
> + VERSION_STRING = 1.0
> + LIBRARY_CLASS = NorFlashPlatformLib
> +
> +[Sources.common]
> + NorFlashLib.c
> +
> +[Packages]
> + ArmPlatformPkg/ArmPlatformPkg.dec
> + MdePkg/MdePkg.dec
> + Platform/ARM/SgiPkg/SgiPlatform.dec
> +
> +[LibraryClasses]
> + BaseLib
> + DebugLib
> + IoLib
> --
> 2.7.4
>
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