1. 根目录:
2. arch
3. arm
4. mach-w90x900
5. include
6. mach
7. regs-clock.h

/*
 * arch/arm/mach-w90x900/include/mach/regs-clock.h
 *
 * Copyright (c) 2008 Nuvoton technology corporation.
 *
 * Wan ZongShun <mcuos.com@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation;version 2 of the License.
 *
 */

#ifndef __ASM_ARCH_REGS_CLOCK_H
#define __ASM_ARCH_REGS_CLOCK_H

/* Clock Control Registers  */
#define CLK_BA		W90X900_VA_CLKPWR
#define REG_CLKEN	(CLK_BA + 0x00)
#define REG_CLKSEL	(CLK_BA + 0x04)
#define REG_CLKDIV	(CLK_BA + 0x08)
#define REG_PLLCON0	(CLK_BA + 0x0C)
#define REG_PLLCON1	(CLK_BA + 0x10)
#define REG_PMCON	(CLK_BA + 0x14)
#define REG_IRQWAKECON	(CLK_BA + 0x18)
#define REG_IRQWAKEFLAG	(CLK_BA + 0x1C)
#define REG_IPSRST	(CLK_BA + 0x20)
#define REG_CLKEN1	(CLK_BA + 0x24)
#define REG_CLKDIV1	(CLK_BA + 0x28)

/* Define PLL freq setting */
#define PLL_DISABLE		0x12B63
#define	PLL_66MHZ		0x2B63
#define	PLL_100MHZ		0x4F64
#define PLL_120MHZ		0x4F63
#define	PLL_166MHZ		0x4124
#define	PLL_200MHZ		0x4F24

/* Define AHB:CPUFREQ ratio */
#define	AHB_CPUCLK_1_1		0x00
#define	AHB_CPUCLK_1_2		0x01
#define	AHB_CPUCLK_1_4		0x02
#define	AHB_CPUCLK_1_8		0x03

/* Define APB:AHB ratio */
#define APB_AHB_1_2		0x01
#define APB_AHB_1_4		0x02
#define APB_AHB_1_8		0x03

/* Define clock skew */
#define DEFAULTSKEW		0x48

#endif /*  __ASM_ARCH_REGS_CLOCK_H */