/*
 *
 *    Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
 *
 *    Module name: ibm4xx.h
 *
 *    Description:
 *	A generic include file which pulls in appropriate include files
 *      for specific board types based on configuration settings.
 *
 */

#ifdef __KERNEL__
#ifndef __ASM_IBM4XX_H__
#define __ASM_IBM4XX_H__

#include <linux/config.h>

#ifdef CONFIG_4xx

#ifndef __ASSEMBLY__

#if defined(CONFIG_WALNUT)
#include <platforms/walnut.h>
#endif

#if defined(CONFIG_EP405)
#include <platforms/ep405.h>
#endif

#if defined(CONFIG_CPCI405)
#include <platforms/cpci405.h>
#endif

#if defined (CONFIG_CEDER)
#include <platforms/ceder.h>
#endif

#if defined(CONFIG_REDWOOD_4)
#include <platforms/redwood.h>
#endif

#if defined(CONFIG_OAK)
#include <platforms/oak.h>
#endif

#ifndef PPC4xx_MACHINE_NAME
#define PPC4xx_MACHINE_NAME	"Unidentified 4xx class"
#endif

#ifndef NR_BOARD_IRQS
#define NR_BOARD_IRQS 0
#endif

/* IO_BASE is for PCI I/O.
 * ISA not supported, just here to resolve copilation.
 */

#ifndef _IO_BASE
#define _IO_BASE	0xe8000000	/* The PCI address window */
#define _ISA_MEM_BASE	0
#define PCI_DRAM_OFFSET	0
#endif

/*
 * The "residual" board information structure the boot loader passes
 * into the kernel.
 */
extern unsigned char __res[];

 
 
/* Device Control Registers */
 
#define stringify(s)	tostring(s)
#define tostring(s)	#s

#define mfdcr(rn) mfdcr_or_dflt(rn, 0)

#define mfdcr_or_dflt(rn,default_rval) \
	({unsigned int rval;						\
	if (rn == 0)							\
		rval = default_rval;					\
	else								\
		asm volatile("mfdcr %0," stringify(rn) : "=r" (rval));	\
	rval;})

#define mtdcr(rn, v)  \
	{if (rn != 0) \
		asm volatile("mtdcr " stringify(rn) ",%0" : : "r" (v));}

#endif /* __ASSEMBLY__ */
#endif /* CONFIG_4xx */
#endif /* __ASM_IBM4XX_H__ */
#endif /* __KERNEL__ */