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ArmPlatformPkg: Introduce ArmPlatformSysConfigLib 

The purpose of this library is to create an interface to communicate
with the platform micro-controller.
It abstracts the communication protocol (eg: SPI, UART, etc) between
the application processor and the micro-controller.

ArmPlatformPkg/ArmVExpressPkg: Implement ArmPlaformSysConfigLib

This implementation allows to communicate with the microcontroller of the
Versatile Express motherboard.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11785 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin 2011-06-11 11:08:34 +00:00
parent 863be5d010
commit 7b80d1a3b6
5 changed files with 379 additions and 0 deletions
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1
ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-CTA9x4.dsc
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@ -102,6 +102,7 @@
# ARM PL011 UART Driver
PL011UartLib|ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.inf
ArmPlatformSysConfigLib|ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSysConfigLib/ArmVExpressSysConfigLib.inf
NorFlashPlatformLib|ArmPlatformPkg/ArmVExpressPkg/Library/NorFlashArmVExpressLib/NorFlashArmVExpressLib.inf
#

23
ArmPlatformPkg/ArmVExpressPkg/Include/VExpressMotherBoard.h
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@ -73,4 +73,27 @@
#define ARM_VE_DAUGHTERBOARD_1_SITE 1
#define ARM_VE_DAUGHTERBOARD_2_SITE 2
#define VIRTUAL_SYS_CFG(site,func) (((site) << 24) | (func))
//
// System Configuration Control Functions
//
#define SYS_CFG_OSC 1
#define SYS_CFG_VOLT 2
#define SYS_CFG_AMP 3
#define SYS_CFG_TEMP 4
#define SYS_CFG_RESET 5
#define SYS_CFG_SCC 6
#define SYS_CFG_MUXFPGA 7
#define SYS_CFG_SHUTDOWN 8
#define SYS_CFG_REBOOT 9
#define SYS_CFG_DVIMODE 11
#define SYS_CFG_POWER 12
// Oscillator for Site 1
#define SYS_CFG_OSC_SITE1 VIRTUAL_SYS_CFG(ARM_VE_DAUGHTERBOARD_1_SITE,SYS_CFG_OSC)
// Oscillator for Site 2
#define SYS_CFG_OSC_SITE2 VIRTUAL_SYS_CFG(ARM_VE_DAUGHTERBOARD_2_SITE,SYS_CFG_OSC)
// Can not access the battery backed-up hardware clock on the Versatile Express motherboard
#define SYS_CFG_RTC VIRTUAL_SYS_CFG(ARM_VE_UNSUPPORTED,1)
#endif /* VEXPRESSMOTHERBOARD_H_ */

255
ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSysConfigLib/ArmVExpressSysConfig.c Normal file
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@ -0,0 +1,255 @@
/** @file SysCfgArmVExpress.c
Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <PiDxe.h>
#include <Library/IoLib.h>
#include <Library/DebugLib.h>
#include <Library/ArmPlatformSysConfigLib.h>
#include <ArmPlatform.h>
//
// SYS_CFGCTRL Bits
//
#define SYS_CFGCTRL_START BIT31
#define SYS_CFGCTRL_READ (0 << 30)
#define SYS_CFGCTRL_WRITE (1 << 30)
#define SYS_CFGCTRL_FUNCTION(fun) (((fun ) & 0x3F) << 20)
#define SYS_CFGCTRL_SITE(site) (((site) & 0x3) << 16)
#define SYS_CFGCTRL_POSITION(pos) (((pos ) & 0xF) << 12)
#define SYS_CFGCTRL_DEVICE(dev) ((dev ) & 0xFFF)
//
// SYS_CFGSTAT Bits
//
#define SYS_CFGSTAT_ERROR BIT1
#define SYS_CFGSTAT_COMPLETE BIT0
/****************************************************************************
*
* This file makes it easier to access the System Configuration Registers
* in the ARM Versatile Express motherboard.
*
****************************************************************************/
EFI_STATUS
ArmPlatformSysConfigInitialize (
VOID
)
{
return EFI_SUCCESS;
}
/***************************************
* GENERAL FUNCTION: AccessSysCfgRegister
* Interacts with
* SYS_CFGSTAT
* SYS_CFGDATA
* SYS_CFGCTRL
* for setting and for reading out values
***************************************/
EFI_STATUS
AccessSysCfgRegister (
IN UINT32 ReadWrite,
IN UINT32 Function,
IN UINT32 Site,
IN UINT32 Position,
IN UINT32 Device,
IN OUT UINT32* Data
)
{
UINT32 SysCfgCtrl;
// Clear the COMPLETE bit
MmioAnd32(ARM_VE_SYS_CFGSTAT_REG, ~SYS_CFGSTAT_COMPLETE);
// If writing, then set the data value
if(ReadWrite == SYS_CFGCTRL_WRITE) {
MmioWrite32(ARM_VE_SYS_CFGDATA_REG, *Data);
}
// Set the control value
SysCfgCtrl = SYS_CFGCTRL_START | ReadWrite | SYS_CFGCTRL_FUNCTION(Function) | SYS_CFGCTRL_SITE(Site) |
SYS_CFGCTRL_POSITION(Position) | SYS_CFGCTRL_DEVICE(Device);
MmioWrite32(ARM_VE_SYS_CFGCTRL_REG, SysCfgCtrl);
// Wait until the COMPLETE bit is set
while ((MmioRead32(ARM_VE_SYS_CFGSTAT_REG) & SYS_CFGSTAT_COMPLETE) == 0);
// Check for errors
if(MmioRead32(ARM_VE_SYS_CFGSTAT_REG) & SYS_CFGSTAT_ERROR) {
return EFI_DEVICE_ERROR;
}
// If reading then get the data value
if(ReadWrite == SYS_CFGCTRL_READ) {
*Data = MmioRead32(ARM_VE_SYS_CFGDATA_REG);
}
return EFI_SUCCESS;
}
EFI_STATUS
ArmPlatformSysConfigGet (
IN SYS_CONFIG_FUNCTION Function,
OUT UINT32* Value
)
{
UINT32 Site;
UINT32 Position;
UINT32 Device;
Position = 0;
Device = 0;
// Intercept some functions
switch(Function) {
case SYS_CFG_OSC_SITE1:
Function = SYS_CFG_OSC;
Site = ARM_VE_DAUGHTERBOARD_1_SITE;
break;
case SYS_CFG_OSC_SITE2:
Function = SYS_CFG_OSC;
Site = ARM_VE_DAUGHTERBOARD_2_SITE;
break;
case SYS_CFG_MUXFPGA:
Site = *Value;
break;
case SYS_CFG_OSC:
case SYS_CFG_VOLT:
case SYS_CFG_AMP:
case SYS_CFG_TEMP:
case SYS_CFG_RESET:
case SYS_CFG_SCC:
case SYS_CFG_DVIMODE:
case SYS_CFG_POWER:
Site = ARM_VE_MOTHERBOARD_SITE;
break;
case SYS_CFG_SHUTDOWN:
case SYS_CFG_REBOOT:
case SYS_CFG_RTC:
default:
return EFI_UNSUPPORTED;
}
return AccessSysCfgRegister (SYS_CFGCTRL_READ, Function, Site, Position, Device, Value);
}
EFI_STATUS
ArmPlatformSysConfigSet (
IN SYS_CONFIG_FUNCTION Function,
IN UINT32 Value
)
{
UINT32 Site;
UINT32 Position;
UINT32 Device;
Position = 0;
Device = 0;
// Intercept some functions
switch(Function) {
case SYS_CFG_OSC_SITE1:
Function = SYS_CFG_OSC;
Site = ARM_VE_DAUGHTERBOARD_1_SITE;
break;
case SYS_CFG_OSC_SITE2:
Function = SYS_CFG_OSC;
Site = ARM_VE_DAUGHTERBOARD_2_SITE;
break;
case SYS_CFG_MUXFPGA:
Site = Value;
break;
case SYS_CFG_RESET:
case SYS_CFG_SCC:
case SYS_CFG_SHUTDOWN:
case SYS_CFG_REBOOT:
case SYS_CFG_DVIMODE:
case SYS_CFG_POWER:
Site = ARM_VE_MOTHERBOARD_SITE;
break;
case SYS_CFG_OSC:
case SYS_CFG_VOLT:
case SYS_CFG_AMP:
case SYS_CFG_TEMP:
case SYS_CFG_RTC:
default:
return(EFI_UNSUPPORTED);
}
return AccessSysCfgRegister (SYS_CFGCTRL_WRITE, Function, Site, Position, Device, &Value);
}
EFI_STATUS
ArmPlatformSysConfigSetDevice (
IN SYS_CONFIG_FUNCTION Function,
IN UINT32 Device,
IN UINT32 Value
)
{
UINT32 Site;
UINT32 Position;
Position = 0;
// Intercept some functions
switch(Function) {
case SYS_CFG_OSC_SITE1:
Function = SYS_CFG_OSC;
Site = ARM_VE_DAUGHTERBOARD_1_SITE;
break;
case SYS_CFG_OSC_SITE2:
Function = SYS_CFG_OSC;
Site = ARM_VE_DAUGHTERBOARD_2_SITE;
break;
case SYS_CFG_MUXFPGA:
Site = Value;
break;
case SYS_CFG_RTC:
return(EFI_UNSUPPORTED);
//break;
case SYS_CFG_OSC:
case SYS_CFG_VOLT:
case SYS_CFG_AMP:
case SYS_CFG_TEMP:
case SYS_CFG_RESET:
case SYS_CFG_SCC:
case SYS_CFG_SHUTDOWN:
case SYS_CFG_REBOOT:
case SYS_CFG_DVIMODE:
case SYS_CFG_POWER:
Site = ARM_VE_MOTHERBOARD_SITE;
break;
default:
return EFI_UNSUPPORTED;
}
return AccessSysCfgRegister (SYS_CFGCTRL_WRITE, Function, Site, Position, Device, &Value);
}

45
ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSysConfigLib/ArmVExpressSysConfigLib.inf Normal file
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@ -0,0 +1,45 @@
#/** @file
#
# Component discription file for ArmVeGraphicsDxe module
#
# Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = ArmVExpressSysConfigLib
FILE_GUID = a05b5cc0-82d2-11e0-82cb-0002a5d5c51b
MODULE_TYPE = DXE_DRIVER
VERSION_STRING = 1.0
LIBRARY_CLASS = ArmPlatformSysConfigLib
[Sources.common]
ArmVExpressSysConfig.c
[Packages]
MdePkg/MdePkg.dec
ArmPlatformPkg/ArmVExpressPkg/ArmVExpressPkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[LibraryClasses]
BaseLib
[Guids]
[Protocols]
[FeaturePcd]
[FixedPcd.common]
[Pcd.common]
[Depex]

55
ArmPlatformPkg/Include/Library/ArmPlatformSysConfigLib.h Normal file
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@ -0,0 +1,55 @@
/** @file ArmPlatformSysConfigLib.h
Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __ARM_PLATFORM_SYS_CONFIG_H__
#define __ARM_PLATFORM_SYS_CONFIG_H__
#include <Base.h>
/* This header file makes it easier to access the System Configuration Registers
* in the ARM Versatile Express motherboard.
*/
//
// Typedef
//
typedef UINT32 SYS_CONFIG_FUNCTION;
//
// Functions
//
EFI_STATUS
ArmPlatformSysConfigInitialize (
VOID
);
EFI_STATUS
ArmPlatformSysConfigGet (
IN SYS_CONFIG_FUNCTION Function,
OUT UINT32* Value
);
EFI_STATUS
ArmPlatformSysConfigSet (
IN SYS_CONFIG_FUNCTION Function,
IN UINT32 Value
);
EFI_STATUS
ArmPlatformSysConfigSetDevice (
IN SYS_CONFIG_FUNCTION Function,
IN UINT32 Device,
IN UINT32 Value
);
#endif /* __SYS_CFG_REGISTERS_H__ */