/** @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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* SPDX-License-Identifier: BSD-2-Clause-Patent
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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 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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ArmDataSynchronizationBarrier ();
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// Clear IRQs
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MmioWrite32 (INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
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ArmDataSynchronizationBarrier ();
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return RETURN_SUCCESS;
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}
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VOID
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ArmPlatformGetPlatformPpiList (
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OUT UINTN *PpiListSize,
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OUT EFI_PEI_PPI_DESCRIPTOR **PpiList
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)
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{
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*PpiListSize = 0;
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*PpiList = NULL;
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}
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UINTN
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ArmPlatformGetCorePosition (
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IN UINTN MpId
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)
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{
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return 1;
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}
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