The Pedigree Project: Prcm Class Reference

The Pedigree Project 0.1

#include <Prcm.h>

Collaboration diagram for Prcm:

Public Types
enum	Clock { FCLK_32K = 0, SYS_CLK = 1, L3_CLK_DIV1 = 1, L3_CLK_DIV2 = 2 }

enum	ModuleBases { IVA2_CM = 0x0000, OCP_System_Reg_CM = 0x0800, MPU_CM = 0x0900, CORE_CM = 0x0A00, SGX_CM = 0x0B00, WKUP_CM = 0x0C00, Clock_Control_Reg_CM = 0x0D00, DSS_CM = 0x0E00, CAM_CM = 0x0F00, PER_CM = 0x1000, EMU_CM = 0x1100, Global_Reg_CM = 0x1200, NEON_CM = 0x1300, USBHOST_CM = 0x1400 }

enum	Registers_PER { CM_FCLKEN_PER = 0x00, CM_ICLKEN_PER = 0x10, CM_IDLEST_PER = 0x20, CM_AUTOIDLE_PER = 0x30, CM_CLKSEL_PER = 0x40, CM_SLEEPDEP_PER = 0x44, CM_CLKSTCRL_PER = 0x48, CM_CLKSTST_PER = 0x4C }

enum	Register_CORE { CM_FCLKEN1_CORE = 0x00, CM_FCLKEN3_CORE = 0x08, CM_ICLKEN1_CORE = 0x10, CM_ICLKEN3_CORE = 0x18, CM_IDLEST1_CORE = 0x20, CM_IDLEST3_CORE = 0x28, CM_AUTOIDLE1_CORE = 0x30, CM_AUTOIDLE3_CORE = 0x38, CM_CLKSEL_CORE = 0x40, CM_CLKSTCTRL_CORE = 0x48, CM_CLKSTST_CORE = 0x4C }

enum	Registers_PLL { CM_CLKEN_PLL = 0x00, CM_CLKEN2_PLL = 0x04, CM_IDLEST_CKGEN = 0x20, CM_IDLEST2_CKGEN = 0x24, CM_AUTOIDLE_PLL = 0x30, CM_AUTOIDLE2_PLL = 0x34, CM_CLKSEL1_PLL = 0x40, CM_CLKSEL2_PLL = 0x44, CM_CLKSEL3_PLL = 0x48, CM_CLKSEL4_PLL = 0x4C, CM_CLKSEL5_PLL = 0x50, CM_CLKOUT_CTRL = 0x70 }

Public Member Functions
void	initialise (uintptr_t base)

void	SelectClockPER (size_t clock, Clock which)

void	SetFuncClockPER (size_t clock, bool enabled)

void	SetIfaceClockPER (size_t clock, bool enabled)

void	SetFuncClockCORE (size_t n, size_t clock, bool enabled)

void	SetIfaceClockCORE (size_t n, size_t clock, bool enabled)

void	WaitCoreIdleStatus (size_t n, size_t clock, bool waitForOn)

void	WaitPllIdleStatus (size_t n, size_t clock, bool waitForOn)

void	SelectClockCORE (size_t clock, Clock which)

void	SetClockPLL (size_t n, size_t value)

void	SelectClockPLL (size_t n, size_t value)

Static Public Member Functions
static Prcm &	instance ()

Private Attributes
MemoryRegion	m_Base

Static Private Attributes
static Prcm	m_Instance

Detailed Description

PRCM - Power, Reset and Clock Management - abstraction

Power management

Reset

Definition at line 27 of file Prcm.h.

Member Function Documentation

void Prcm::initialise ( uintptr_t base )

Initialises the PRCM from a specific base

Todo:: Proper initialisation

Definition at line 36 of file Prcm.cc.

References PhysicalMemoryManager::continuous, PhysicalMemoryManager::instance(), VirtualAddressSpace::KernelMode, and VirtualAddressSpace::Write.

Referenced by ArmBeagle::initialise2().

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void Prcm::SelectClockCORE	(	size_t	clock,
		Clock	which
	)

Handle source clock selection for CORE

Definition at line 78 of file Prcm.cc.

References ERROR.

Referenced by UsbUlpi::initialise().

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void Prcm::SelectClockPER	(	size_t	clock,
		Clock	which
	)

Handle source clock selection for PER

Definition at line 50 of file Prcm.cc.

References ERROR.

Referenced by GPTimer::initialise().

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void Prcm::SelectClockPLL	(	size_t	n,
		size_t	value
	)

Clock selection for PLL. The register contents must be set by the programmer.

Definition at line 308 of file Prcm.cc.

References ERROR.

Referenced by UsbUlpi::initialise().

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void Prcm::SetClockPLL	(	size_t	n,
		size_t	value
	)

Enables or disables a PLL clock (programmer chooses value)

Definition at line 335 of file Prcm.cc.

References ERROR, and WARNING.

Referenced by UsbUlpi::initialise().

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void Prcm::SetFuncClockCORE	(	size_t	n,
		size_t	clock,
		bool	enabled
	)

Handle functional clock enable/disable for CORE

Definition at line 166 of file Prcm.cc.

References ERROR, and WARNING.

Referenced by UsbUlpi::initialise().

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void Prcm::SetFuncClockPER	(	size_t	clock,
		bool	enabled
	)

Handle functional clock enable/disable for PER

Definition at line 110 of file Prcm.cc.

References ERROR.

Referenced by GPTimer::initialise().

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void Prcm::SetIfaceClockCORE	(	size_t	n,
		size_t	clock,
		bool	enabled
	)

Handle interface clock enable/disable for CORE

Definition at line 200 of file Prcm.cc.

References ERROR, and WARNING.

Referenced by UsbUlpi::initialise().

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void Prcm::SetIfaceClockPER	(	size_t	clock,
		bool	enabled
	)

Handle interface clock enable/disable for PER

Definition at line 138 of file Prcm.cc.

References ERROR.

Referenced by GPTimer::initialise().

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void Prcm::WaitCoreIdleStatus	(	size_t	n,
		size_t	clock,
		bool	waitForOn
	)

Waits for a bit in the IDLEST CORE register to change state.

Todo:: delays or something

Definition at line 234 of file Prcm.cc.

References ERROR, and WARNING.

Referenced by UsbUlpi::initialise().

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void Prcm::WaitPllIdleStatus	(	size_t	n,
		size_t	clock,
		bool	waitForOn
	)

Waits for a bit in the IDLEST PLL register to change state.

Todo:: delays or something

Definition at line 269 of file Prcm.cc.

References ERROR, and WARNING.

Referenced by UsbUlpi::initialise().

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The documentation for this class was generated from the following files: