1 /** @file 2 3 Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR> 4 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include <PiDxe.h> 16 #include <Library/DebugLib.h> 17 #include <Library/IoLib.h> 18 #include <Library/NorFlashPlatformLib.h> 19 #include <ArmPlatform.h> 20 21 NOR_FLASH_DESCRIPTION mNorFlashDevices[] = { 22 { 23 ARM_VE_SMB_NOR0_BASE, 24 ARM_VE_SMB_NOR0_BASE, 25 SIZE_256KB * 255, 26 SIZE_256KB, 27 {0xE7223039, 0x5836, 0x41E1, { 0xB5, 0x42, 0xD7, 0xEC, 0x73, 0x6C, 0x5E, 0x59} } 28 }, 29 { 30 ARM_VE_SMB_NOR0_BASE, 31 ARM_VE_SMB_NOR0_BASE + SIZE_256KB * 255, 32 SIZE_64KB * 4, 33 SIZE_64KB, 34 {0x02118005, 0x9DA7, 0x443A, { 0x92, 0xD5, 0x78, 0x1F, 0x02, 0x2A, 0xED, 0xBB } } 35 }, 36 }; 37 38 EFI_STATUS 39 NorFlashPlatformInitialization ( 40 VOID 41 ) 42 { 43 // Everything seems ok so far, so now we need to disable the platform-specific 44 // flash write protection for Versatile Express 45 if ((MmioRead32 (ARM_VE_SYS_FLASH) & 0x1) == 0) { 46 // Writing to NOR FLASH is disabled, so enable it 47 MmioWrite32 (ARM_VE_SYS_FLASH, 1); 48 DEBUG((DEBUG_BLKIO, "NorFlashPlatformInitialization: informational - Had to enable HSYS_FLASH flag.\n" )); 49 } 50 51 return EFI_SUCCESS; 52 } 53 54 EFI_STATUS 55 NorFlashPlatformGetDevices ( 56 OUT NOR_FLASH_DESCRIPTION **NorFlashDevices, 57 OUT UINT32 *Count 58 ) 59 { 60 if ((NorFlashDevices == NULL) || (Count == NULL)) { 61 return EFI_INVALID_PARAMETER; 62 } 63 64 *NorFlashDevices = mNorFlashDevices; 65 *Count = sizeof (mNorFlashDevices) / sizeof (NOR_FLASH_DESCRIPTION); 66 67 return EFI_SUCCESS; 68 } 69
