pxa255_clk.h

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// Copyright (c) David Vescovi.  All rights reserved.
// Part of Project DrumStix
// Windows Embedded Developers Interest Group (WE-DIG) community project.
// http://www.we-dig.org
// Copyright (c) Microsoft Corporation.  All rights reserved.
//------------------------------------------------------------------------------
//
//  Header: pxa255_clk.h
//
//  Defines the clock/timer register layout and associated types and constants.
//
//------------------------------------------------------------------------------
#ifndef _PXA255_CLK_H_
#define _PXA255_CLK_H_

#if __cplusplus
extern "C" {
#endif

//------------------------------------------------------------------------------
//
//  Type:  CLK_REG_T
//
//  Defines the clock/timer control register layout.
//
//------------------------------------------------------------------------------

typedef struct
{
	VUINT32_T	CCCR;			//Core Clock Configuration Register
	VUINT32_T	CKEN;			//Clock Enable Register
	VUINT32_T	OSCC;			//Oscillator Configuration Register
} CLK_REG_T, *PCLK_REG_T;


//
// Core Clock Configuration Register (CCCR) Bits
//
#define CCCR_L			(0x1fu << 0)
#define CCCR_M			(0x3u << 5)
#define CCCR_N			(0x7u << 7)

#define CCCR_RESERVED_BITS (0xFFFFFC00)

#define CCCR_L27		(0x01)			// L=X27
#define CCCR_M1			(0x1 << 5)		// M=X1
#define CCCR_M2			(0x2 << 5)		// M=X2
#define CCCR_M4			(0x3 << 5)		// M=X4
#define CCCR_N10		(0x2 << 7)		// N=X1.0
#define CCCR_N15		(0x3 << 7)		// N=X1.5
#define CCCR_N20		(0x4 << 7)		// N=X2.0
#define CCCR_N30		(0x6 << 7)		// N=X3.0


//
// Clock Enable Register (CKEN) Bits
//
#define CKEN_PWM0    	0x00000001
#define CKEN_PWM1    	0x00000002
#define CKEN_AC97    	0x00000004
#define CKEN_SSP     	0x00000008
#define CKEN_HWUART  	0x00000010
#define CKEN_STUART  	0x00000020
#define CKEN_FFUART  	0x00000040
#define CKEN_BTUART  	0x00000080
#define CKEN_I2S     	0x00000100
#define CKEN_NSSP    	0x00000200

#define CKEN_USB     	0x00000800
#define CKEN_MMC     	0x00001000
#define CKEN_FICP    	0x00002000
#define CKEN_I2C     	0x00004000

#define CKEN_LCD     	0x00010000

//
// Oscillator Configuration Register (OSCC) Bits
//
#define OSCC_OOK    	0x00000001
#define OSCC_OON    	0x00000002

//------------------------------------------------------------------------------

#if __cplusplus
}
#endif

#endif