BeagleBoardPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / BeagleBoardPkg / Library / BeagleBoardLib / BeagleBoard.c

/** @file\r
*\r
*  Copyright (c) 2011-2012, ARM Limited. All rights reserved.\r
*\r
*  SPDX-License-Identifier: BSD-2-Clause-Patent\r
*\r
**/\r
\r
#include <Library/IoLib.h>\r
#include <Library/ArmPlatformLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/PcdLib.h>\r
\r
#include <Omap3530/Omap3530.h>\r
#include <BeagleBoard.h>\r
\r
VOID\r
PadConfiguration (\r
  BEAGLEBOARD_REVISION Revision\r
  );\r
\r
VOID\r
ClockInit (\r
  VOID\r
  );\r
\r
/**\r
  Detect board revision\r
\r
  @return Board revision\r
**/\r
BEAGLEBOARD_REVISION\r
BeagleBoardGetRevision (\r
  VOID\r
  )\r
{\r
  UINT32 OldPinDir;\r
  UINT32 Revision;\r
\r
  // Read GPIO 171, 172, 173\r
  OldPinDir = MmioRead32 (GPIO6_BASE + GPIO_OE);\r
  MmioWrite32(GPIO6_BASE + GPIO_OE, (OldPinDir | BIT11 | BIT12 | BIT13));\r
  Revision = MmioRead32 (GPIO6_BASE + GPIO_DATAIN);\r
\r
  // Restore I/O settings\r
  MmioWrite32 (GPIO6_BASE + GPIO_OE, OldPinDir);\r
\r
  return (BEAGLEBOARD_REVISION)((Revision >> 11) & 0x7);\r
}\r
\r
/**\r
  Return the current Boot Mode\r
\r
  This function returns the boot reason on the platform\r
\r
**/\r
EFI_BOOT_MODE\r
ArmPlatformGetBootMode (\r
  VOID\r
  )\r
{\r
  return BOOT_WITH_FULL_CONFIGURATION;\r
}\r
\r
/**\r
  Initialize controllers that must setup at the early stage\r
\r
  Some peripherals must be initialized in Secure World.\r
  For example, some L2x0 requires to be initialized in Secure World\r
\r
**/\r
RETURN_STATUS\r
ArmPlatformInitialize (\r
  IN  UINTN                     MpId\r
  )\r
{\r
  BEAGLEBOARD_REVISION Revision;\r
\r
  Revision = BeagleBoardGetRevision();\r
\r
  // Set up Pin muxing.\r
  PadConfiguration (Revision);\r
\r
  // Set up system clocking\r
  ClockInit ();\r
\r
  // Turn off the functional clock for Timer 3\r
  MmioAnd32 (CM_FCLKEN_PER, 0xFFFFFFFF ^ CM_ICLKEN_PER_EN_GPT3_ENABLE );\r
  ArmDataSynchronizationBarrier ();\r
\r
  // Clear IRQs\r
  MmioWrite32 (INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);\r
  ArmDataSynchronizationBarrier ();\r
\r
  return RETURN_SUCCESS;\r
}\r
\r
VOID\r
ArmPlatformGetPlatformPpiList (\r
  OUT UINTN                   *PpiListSize,\r
  OUT EFI_PEI_PPI_DESCRIPTOR  **PpiList\r
  )\r
{\r
  *PpiListSize = 0;\r
  *PpiList = NULL;\r
}\r
\r
UINTN\r
ArmPlatformGetCorePosition (\r
  IN UINTN MpId\r
  )\r
{\r
  return 1;\r
}\r
\r