mirror of https://github.com/acidanthera/audk.git
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/** @file
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Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiDxe.h>
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#include <Library/DebugLib.h>
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#include <Library/IoLib.h>
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#include <Library/NorFlashPlatformLib.h>
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#include <ArmPlatform.h>
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NOR_FLASH_DESCRIPTION mNorFlashDevices[] = {
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{
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ARM_VE_SMB_NOR0_BASE,
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ARM_VE_SMB_NOR0_BASE,
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SIZE_256KB * 255,
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SIZE_256KB,
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{0xE7223039, 0x5836, 0x41E1, { 0xB5, 0x42, 0xD7, 0xEC, 0x73, 0x6C, 0x5E, 0x59} }
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},
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{
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ARM_VE_SMB_NOR0_BASE,
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ARM_VE_SMB_NOR0_BASE + SIZE_256KB * 255,
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SIZE_64KB * 4,
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SIZE_64KB,
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{0x02118005, 0x9DA7, 0x443A, { 0x92, 0xD5, 0x78, 0x1F, 0x02, 0x2A, 0xED, 0xBB } }
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},
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};
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EFI_STATUS
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NorFlashPlatformInitialization (
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VOID
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)
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{
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// Everything seems ok so far, so now we need to disable the platform-specific
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// flash write protection for Versatile Express
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if ((MmioRead32 (ARM_VE_SYS_FLASH) & 0x1) == 0) {
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// Writing to NOR FLASH is disabled, so enable it
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MmioWrite32 (ARM_VE_SYS_FLASH, 1);
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DEBUG((DEBUG_BLKIO, "NorFlashPlatformInitialization: informational - Had to enable HSYS_FLASH flag.\n" ));
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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NorFlashPlatformGetDevices (
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OUT NOR_FLASH_DESCRIPTION **NorFlashDevices,
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OUT UINT32 *Count
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)
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{
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if ((NorFlashDevices == NULL) || (Count == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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*NorFlashDevices = mNorFlashDevices;
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*Count = sizeof (mNorFlashDevices) / sizeof (NOR_FLASH_DESCRIPTION);
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return EFI_SUCCESS;
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}
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