/** @file
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Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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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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},
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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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},
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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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