1. 根目录:
2. arch
3. arm
4. mach-w90x900
5. cpu.h

/*
 * arch/arm/mach-w90x900/cpu.h
 *
 * Based on linux/include/asm-arm/plat-s3c24xx/cpu.h by Ben Dooks
 *
 * Copyright (c) 2008 Nuvoton technology corporation
 * All rights reserved.
 *
 * Header file for NUC900 CPU support
 *
 * 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 version 2 as
 * published by the Free Software Foundation.
 *
 */

#define IODESC_ENT(y)                                  \
{                                                      \
       .virtual = (unsigned long)W90X900_VA_##y,       \
       .pfn     = __phys_to_pfn(W90X900_PA_##y),       \
       .length  = W90X900_SZ_##y,                      \
       .type    = MT_DEVICE,                           \
}

#define NUC900_8250PORT(name)					\
{								\
	.membase	= name##_BA,				\
	.mapbase	= name##_PA,				\
	.irq		= IRQ_##name,				\
	.uartclk	= 11313600,				\
	.regshift	= 2,					\
	.iotype		= UPIO_MEM,				\
	.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,	\
}

/*Cpu identifier register*/

#define NUC900PDID	W90X900_VA_GCR
#define NUC910_CPUID	0x02900910
#define NUC920_CPUID	0x02900920
#define NUC950_CPUID	0x02900950
#define NUC960_CPUID	0x02900960

/* extern file from cpu.c */

extern void nuc900_clock_source(struct device *dev, unsigned char *src);
extern void nuc900_init_clocks(void);
extern void nuc900_map_io(struct map_desc *mach_desc, int mach_size);
extern void nuc900_board_init(struct platform_device **device, int size);

/* for either public between 910 and 920, or between 920 and 950 */

extern struct platform_device nuc900_serial_device;
extern struct platform_device nuc900_device_fmi;
extern struct platform_device nuc900_device_kpi;
extern struct platform_device nuc900_device_rtc;
extern struct platform_device nuc900_device_ts;
extern struct platform_device nuc900_device_lcd;