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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
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oliviermartin
parent
863be5d010
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@ -102,6 +102,7 @@
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# ARM PL011 UART Driver
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PL011UartLib|ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.inf
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ArmPlatformSysConfigLib|ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSysConfigLib/ArmVExpressSysConfigLib.inf
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NorFlashPlatformLib|ArmPlatformPkg/ArmVExpressPkg/Library/NorFlashArmVExpressLib/NorFlashArmVExpressLib.inf
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#
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@ -73,4 +73,27 @@
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#define ARM_VE_DAUGHTERBOARD_1_SITE 1
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#define ARM_VE_DAUGHTERBOARD_2_SITE 2
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#define VIRTUAL_SYS_CFG(site,func) (((site) << 24) | (func))
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//
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// System Configuration Control Functions
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//
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#define SYS_CFG_OSC 1
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#define SYS_CFG_VOLT 2
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#define SYS_CFG_AMP 3
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#define SYS_CFG_TEMP 4
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#define SYS_CFG_RESET 5
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#define SYS_CFG_SCC 6
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#define SYS_CFG_MUXFPGA 7
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#define SYS_CFG_SHUTDOWN 8
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#define SYS_CFG_REBOOT 9
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#define SYS_CFG_DVIMODE 11
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#define SYS_CFG_POWER 12
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// Oscillator for Site 1
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#define SYS_CFG_OSC_SITE1 VIRTUAL_SYS_CFG(ARM_VE_DAUGHTERBOARD_1_SITE,SYS_CFG_OSC)
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// Oscillator for Site 2
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#define SYS_CFG_OSC_SITE2 VIRTUAL_SYS_CFG(ARM_VE_DAUGHTERBOARD_2_SITE,SYS_CFG_OSC)
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// Can not access the battery backed-up hardware clock on the Versatile Express motherboard
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#define SYS_CFG_RTC VIRTUAL_SYS_CFG(ARM_VE_UNSUPPORTED,1)
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#endif /* VEXPRESSMOTHERBOARD_H_ */
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@ -0,0 +1,255 @@
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/** @file SysCfgArmVExpress.c
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Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
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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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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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#include <PiDxe.h>
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#include <Library/IoLib.h>
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#include <Library/DebugLib.h>
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#include <Library/ArmPlatformSysConfigLib.h>
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#include <ArmPlatform.h>
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//
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// SYS_CFGCTRL Bits
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//
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#define SYS_CFGCTRL_START BIT31
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#define SYS_CFGCTRL_READ (0 << 30)
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#define SYS_CFGCTRL_WRITE (1 << 30)
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#define SYS_CFGCTRL_FUNCTION(fun) (((fun ) & 0x3F) << 20)
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#define SYS_CFGCTRL_SITE(site) (((site) & 0x3) << 16)
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#define SYS_CFGCTRL_POSITION(pos) (((pos ) & 0xF) << 12)
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#define SYS_CFGCTRL_DEVICE(dev) ((dev ) & 0xFFF)
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//
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// SYS_CFGSTAT Bits
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//
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#define SYS_CFGSTAT_ERROR BIT1
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#define SYS_CFGSTAT_COMPLETE BIT0
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/****************************************************************************
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*
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* This file makes it easier to access the System Configuration Registers
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* in the ARM Versatile Express motherboard.
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*
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****************************************************************************/
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EFI_STATUS
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ArmPlatformSysConfigInitialize (
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VOID
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)
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{
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return EFI_SUCCESS;
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}
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/***************************************
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* GENERAL FUNCTION: AccessSysCfgRegister
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* Interacts with
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* SYS_CFGSTAT
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* SYS_CFGDATA
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* SYS_CFGCTRL
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* for setting and for reading out values
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***************************************/
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EFI_STATUS
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AccessSysCfgRegister (
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IN UINT32 ReadWrite,
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IN UINT32 Function,
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IN UINT32 Site,
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IN UINT32 Position,
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IN UINT32 Device,
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IN OUT UINT32* Data
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)
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{
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UINT32 SysCfgCtrl;
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// Clear the COMPLETE bit
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MmioAnd32(ARM_VE_SYS_CFGSTAT_REG, ~SYS_CFGSTAT_COMPLETE);
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// If writing, then set the data value
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if(ReadWrite == SYS_CFGCTRL_WRITE) {
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MmioWrite32(ARM_VE_SYS_CFGDATA_REG, *Data);
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}
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// Set the control value
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SysCfgCtrl = SYS_CFGCTRL_START | ReadWrite | SYS_CFGCTRL_FUNCTION(Function) | SYS_CFGCTRL_SITE(Site) |
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SYS_CFGCTRL_POSITION(Position) | SYS_CFGCTRL_DEVICE(Device);
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MmioWrite32(ARM_VE_SYS_CFGCTRL_REG, SysCfgCtrl);
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// Wait until the COMPLETE bit is set
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while ((MmioRead32(ARM_VE_SYS_CFGSTAT_REG) & SYS_CFGSTAT_COMPLETE) == 0);
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// Check for errors
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if(MmioRead32(ARM_VE_SYS_CFGSTAT_REG) & SYS_CFGSTAT_ERROR) {
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return EFI_DEVICE_ERROR;
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}
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// If reading then get the data value
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if(ReadWrite == SYS_CFGCTRL_READ) {
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*Data = MmioRead32(ARM_VE_SYS_CFGDATA_REG);
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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ArmPlatformSysConfigGet (
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IN SYS_CONFIG_FUNCTION Function,
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OUT UINT32* Value
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)
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{
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UINT32 Site;
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UINT32 Position;
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UINT32 Device;
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Position = 0;
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Device = 0;
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// Intercept some functions
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switch(Function) {
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case SYS_CFG_OSC_SITE1:
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Function = SYS_CFG_OSC;
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Site = ARM_VE_DAUGHTERBOARD_1_SITE;
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break;
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case SYS_CFG_OSC_SITE2:
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Function = SYS_CFG_OSC;
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Site = ARM_VE_DAUGHTERBOARD_2_SITE;
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break;
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case SYS_CFG_MUXFPGA:
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Site = *Value;
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break;
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case SYS_CFG_OSC:
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case SYS_CFG_VOLT:
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case SYS_CFG_AMP:
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case SYS_CFG_TEMP:
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case SYS_CFG_RESET:
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case SYS_CFG_SCC:
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case SYS_CFG_DVIMODE:
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case SYS_CFG_POWER:
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Site = ARM_VE_MOTHERBOARD_SITE;
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break;
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case SYS_CFG_SHUTDOWN:
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case SYS_CFG_REBOOT:
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case SYS_CFG_RTC:
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default:
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return EFI_UNSUPPORTED;
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}
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return AccessSysCfgRegister (SYS_CFGCTRL_READ, Function, Site, Position, Device, Value);
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}
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EFI_STATUS
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ArmPlatformSysConfigSet (
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IN SYS_CONFIG_FUNCTION Function,
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IN UINT32 Value
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)
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{
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UINT32 Site;
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UINT32 Position;
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UINT32 Device;
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Position = 0;
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Device = 0;
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// Intercept some functions
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switch(Function) {
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case SYS_CFG_OSC_SITE1:
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Function = SYS_CFG_OSC;
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Site = ARM_VE_DAUGHTERBOARD_1_SITE;
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break;
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case SYS_CFG_OSC_SITE2:
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Function = SYS_CFG_OSC;
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Site = ARM_VE_DAUGHTERBOARD_2_SITE;
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break;
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case SYS_CFG_MUXFPGA:
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Site = Value;
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break;
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case SYS_CFG_RESET:
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case SYS_CFG_SCC:
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case SYS_CFG_SHUTDOWN:
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case SYS_CFG_REBOOT:
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case SYS_CFG_DVIMODE:
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case SYS_CFG_POWER:
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Site = ARM_VE_MOTHERBOARD_SITE;
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break;
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case SYS_CFG_OSC:
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case SYS_CFG_VOLT:
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case SYS_CFG_AMP:
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case SYS_CFG_TEMP:
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case SYS_CFG_RTC:
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default:
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return(EFI_UNSUPPORTED);
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}
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return AccessSysCfgRegister (SYS_CFGCTRL_WRITE, Function, Site, Position, Device, &Value);
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}
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EFI_STATUS
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ArmPlatformSysConfigSetDevice (
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IN SYS_CONFIG_FUNCTION Function,
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IN UINT32 Device,
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IN UINT32 Value
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)
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{
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UINT32 Site;
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UINT32 Position;
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Position = 0;
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// Intercept some functions
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switch(Function) {
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case SYS_CFG_OSC_SITE1:
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Function = SYS_CFG_OSC;
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Site = ARM_VE_DAUGHTERBOARD_1_SITE;
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break;
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case SYS_CFG_OSC_SITE2:
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Function = SYS_CFG_OSC;
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Site = ARM_VE_DAUGHTERBOARD_2_SITE;
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break;
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case SYS_CFG_MUXFPGA:
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Site = Value;
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break;
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case SYS_CFG_RTC:
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return(EFI_UNSUPPORTED);
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//break;
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case SYS_CFG_OSC:
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case SYS_CFG_VOLT:
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case SYS_CFG_AMP:
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case SYS_CFG_TEMP:
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case SYS_CFG_RESET:
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case SYS_CFG_SCC:
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case SYS_CFG_SHUTDOWN:
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case SYS_CFG_REBOOT:
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case SYS_CFG_DVIMODE:
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case SYS_CFG_POWER:
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Site = ARM_VE_MOTHERBOARD_SITE;
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break;
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default:
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return EFI_UNSUPPORTED;
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}
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return AccessSysCfgRegister (SYS_CFGCTRL_WRITE, Function, Site, Position, Device, &Value);
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}
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@ -0,0 +1,45 @@
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#/** @file
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#
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# Component discription file for ArmVeGraphicsDxe module
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#
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# Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
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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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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = ArmVExpressSysConfigLib
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FILE_GUID = a05b5cc0-82d2-11e0-82cb-0002a5d5c51b
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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LIBRARY_CLASS = ArmPlatformSysConfigLib
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[Sources.common]
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ArmVExpressSysConfig.c
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[Packages]
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MdePkg/MdePkg.dec
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ArmPlatformPkg/ArmVExpressPkg/ArmVExpressPkg.dec
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ArmPlatformPkg/ArmPlatformPkg.dec
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[LibraryClasses]
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BaseLib
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[Guids]
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[Protocols]
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[FeaturePcd]
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[FixedPcd.common]
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[Pcd.common]
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[Depex]
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55
ArmPlatformPkg/Include/Library/ArmPlatformSysConfigLib.h
Normal file
55
ArmPlatformPkg/Include/Library/ArmPlatformSysConfigLib.h
Normal file
@ -0,0 +1,55 @@
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/** @file ArmPlatformSysConfigLib.h
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Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
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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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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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#ifndef __ARM_PLATFORM_SYS_CONFIG_H__
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#define __ARM_PLATFORM_SYS_CONFIG_H__
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#include <Base.h>
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/* This header file makes it easier to access the System Configuration Registers
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* in the ARM Versatile Express motherboard.
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*/
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//
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// Typedef
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//
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typedef UINT32 SYS_CONFIG_FUNCTION;
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//
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// Functions
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//
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EFI_STATUS
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ArmPlatformSysConfigInitialize (
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VOID
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);
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EFI_STATUS
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ArmPlatformSysConfigGet (
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IN SYS_CONFIG_FUNCTION Function,
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OUT UINT32* Value
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);
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EFI_STATUS
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ArmPlatformSysConfigSet (
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IN SYS_CONFIG_FUNCTION Function,
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IN UINT32 Value
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);
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EFI_STATUS
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ArmPlatformSysConfigSetDevice (
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IN SYS_CONFIG_FUNCTION Function,
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IN UINT32 Device,
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IN UINT32 Value
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);
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#endif /* __SYS_CFG_REGISTERS_H__ */
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