/*
 *
 *    Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
 *
 *    Module name: oak.h
 *
 *    Description:
 *	Macros, definitions, and data structures specific to the IBM PowerPC
 *      403G{A,B,C,CX} "Oak" evaluation board. Anything specific to the pro-
 *      cessor itself is defined elsewhere.
 *
 */

#ifdef __KERNEL__
#ifndef __ASM_OAK_H__
#define __ASM_OAK_H__

/* We have an IBM 403G{A,B,C,CX} core */
#include <asm/ibm403.h>

#define _IO_BASE	0
#define _ISA_MEM_BASE	0
#define PCI_DRAM_OFFSET	0

/* Memory map for the "Oak" evaluation board */

#define	PPC403SPU_IO_BASE	0x40000000	/* 403 On-chip serial port */
#define	PPC403SPU_IO_SIZE	0x00000008
#define	OAKSERIAL_IO_BASE	0x7E000000	/* NS16550DV serial port */
#define	OAKSERIAL_IO_SIZE	0x00000008
#define	OAKNET_IO_BASE		0xF4000000	/* NS83902AV Ethernet */
#define	OAKNET_IO_SIZE		0x00000040
#define	OAKPROM_IO_BASE		0xFFFE0000	/* AMD 29F010 Flash ROM */
#define	OAKPROM_IO_SIZE		0x00020000


/* Interrupt assignments fixed by the hardware implementation */

/* This is annoying kbuild-2.4 problem. -- Tom */

#define	PPC403SPU_RX_INT	4	/* AIC_INT4 */
#define	PPC403SPU_TX_INT	5	/* AIC_INT5 */
#define	OAKNET_INT		27	/* AIC_INT27 */
#define	OAKSERIAL_INT		28	/* AIC_INT28 */

#ifndef __ASSEMBLY__
/*
 * Data structure defining board information maintained by the boot
 * ROM on IBM's "Oak" evaluation board. An effort has been made to
 * keep the field names consistent with the 8xx 'bd_t' board info
 * structures.
 */

typedef struct board_info {
	unsigned char	 bi_s_version[4];	/* Version of this structure */
	unsigned char	 bi_r_version[30];	/* Version of the IBM ROM */
	unsigned int	 bi_memsize;		/* DRAM installed, in bytes */
	unsigned char	 bi_enetaddr[6];	/* Ethernet MAC address */
	unsigned int	 bi_intfreq;		/* Processor speed, in Hz */
	unsigned int	 bi_busfreq;		/* Bus speed, in Hz */
} bd_t;

#ifdef __cplusplus
extern "C" {
#endif

extern void		 oak_init(unsigned long r3,
				  unsigned long ird_start,
				  unsigned long ird_end,
				  unsigned long cline_start,
				  unsigned long cline_end);
extern void		 oak_setup_arch(void);
extern int		 oak_setup_residual(char *buffer);
extern void		 oak_init_IRQ(void);
extern int		 oak_get_irq(struct pt_regs *regs);
extern void		 oak_restart(char *cmd);
extern void		 oak_power_off(void);
extern void		 oak_halt(void);
extern void		 oak_time_init(void);
extern int		 oak_set_rtc_time(unsigned long now);
extern unsigned long	 oak_get_rtc_time(void);
extern void		 oak_calibrate_decr(void);

#ifdef __cplusplus
}
#endif

/* Some 4xx parts use a different timebase frequency from the internal clock.
*/
#define bi_tbfreq bi_intfreq

#define PPC4xx_MACHINE_NAME	"IBM Oak"

#endif /* !__ASSEMBLY__ */
#endif /* __ASM_OAK_H__ */
#endif /* __KERNEL__ */