f437141a9c
- ArmPlatformNormalInitialize() has been renamed into ArmPlatformInitialize() - Make the function be called at the early stage of the PEI phase as some platforms require their interconnects or clocks to be initialize before any access to Timers or UARTs. Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13245 6f19259b-4bc3-4df7-8a09-765794883524
152 lines
3.3 KiB
C
Executable File
152 lines
3.3 KiB
C
Executable File
/** @file
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*
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* Copyright (c) 2011-2012, ARM Limited. All rights reserved.
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*
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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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*
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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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**/
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#include <Library/IoLib.h>
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#include <Library/ArmPlatformLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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#include <Omap3530/Omap3530.h>
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#include <BeagleBoard.h>
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VOID
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PadConfiguration (
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BEAGLEBOARD_REVISION Revision
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);
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VOID
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ClockInit (
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VOID
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);
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/**
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Detect board revision
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@return Board revision
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**/
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BEAGLEBOARD_REVISION
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BeagleBoardGetRevision (
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VOID
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)
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{
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UINT32 OldPinDir;
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UINT32 Revision;
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// Read GPIO 171, 172, 173
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OldPinDir = MmioRead32 (GPIO6_BASE + GPIO_OE);
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MmioWrite32(GPIO6_BASE + GPIO_OE, (OldPinDir | BIT11 | BIT12 | BIT13));
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Revision = MmioRead32 (GPIO6_BASE + GPIO_DATAIN);
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// Restore I/O settings
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MmioWrite32 (GPIO6_BASE + GPIO_OE, OldPinDir);
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return (BEAGLEBOARD_REVISION)((Revision >> 11) & 0x7);
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}
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/**
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Return if Trustzone is supported by your platform
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A non-zero value must be returned if you want to support a Secure World on your platform.
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ArmPlatformTrustzoneInit() will later set up the secure regions.
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This function can return 0 even if Trustzone is supported by your processor. In this case,
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the platform will continue to run in Secure World.
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@return A non-zero value if Trustzone supported.
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**/
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UINTN
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ArmPlatformTrustzoneSupported (
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VOID
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)
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{
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// The BeagleBoard starts in Normal World (Non Secure World)
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return FALSE;
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}
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/**
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Remap the memory at 0x0
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Some platform requires or gives the ability to remap the memory at the address 0x0.
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This function can do nothing if this feature is not relevant to your platform.
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**/
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VOID
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ArmPlatformBootRemapping (
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VOID
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)
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{
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// Do nothing for the BeagleBoard
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}
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/**
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Return the current Boot Mode
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This function returns the boot reason on the platform
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**/
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EFI_BOOT_MODE
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ArmPlatformGetBootMode (
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VOID
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)
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{
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return BOOT_WITH_FULL_CONFIGURATION;
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}
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/**
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Initialize controllers that must setup at the early stage
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Some peripherals must be initialized in Secure World.
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For example, some L2x0 requires to be initialized in Secure World
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**/
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RETURN_STATUS
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ArmPlatformInitialize (
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IN UINTN MpId
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)
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{
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BEAGLEBOARD_REVISION Revision;
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Revision = BeagleBoardGetRevision();
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// Set up Pin muxing.
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PadConfiguration (Revision);
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// Set up system clocking
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ClockInit ();
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// Turn off the functional clock for Timer 3
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MmioAnd32 (CM_FCLKEN_PER, 0xFFFFFFFF ^ CM_ICLKEN_PER_EN_GPT3_ENABLE );
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ArmDataSyncronizationBarrier ();
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// Clear IRQs
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MmioWrite32 (INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
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ArmDataSyncronizationBarrier ();
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return RETURN_SUCCESS;
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}
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/**
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Initialize the system (or sometimes called permanent) memory
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This memory is generally represented by the DRAM.
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**/
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VOID
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ArmPlatformInitializeSystemMemory (
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VOID
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)
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{
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// We do not need to initialize the System Memory on RTSM
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}
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