1/*	$NetBSD: cpu.h,v 1.27 2021/11/02 11:21:24 ryo Exp $	*/
  2
  3/*
  4 * Copyright 2002 Wasabi Systems, Inc.
  5 * All rights reserved.
  6 *
  7 * Written by Eduardo Horvath for Wasabi Systems, Inc.
  8 *
  9 * Redistribution and use in source and binary forms, with or without
 10 * modification, are permitted provided that the following conditions
 11 * are met:
 12 * 1. Redistributions of source code must retain the above copyright
 13 *    notice, this list of conditions and the following disclaimer.
 14 * 2. Redistributions in binary form must reproduce the above copyright
 15 *    notice, this list of conditions and the following disclaimer in the
 16 *    documentation and/or other materials provided with the distribution.
 17 * 3. All advertising materials mentioning features or use of this software
 18 *    must display the following acknowledgement:
 19 *      This product includes software developed for the NetBSD Project by
 20 *      Wasabi Systems, Inc.
 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
 22 *    or promote products derived from this software without specific prior
 23 *    written permission.
 24 *
 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 28 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 35 * POSSIBILITY OF SUCH DAMAGE.
 36 */
 37
 38#ifndef	_IBM4XX_CPU_H_
 39#define	_IBM4XX_CPU_H_
 40
 41#ifdef _KERNEL_OPT
 42#include "opt_param.h"
 43#endif
 44
 45#include <powerpc/psl.h>
 46#include <powerpc/spr.h>
 47#include <powerpc/ibm4xx/spr.h>
 48#include <powerpc/ibm4xx/dcr4xx.h>
 49
 50#if defined(_KERNEL)
 51struct exc_info {
 52	vaddr_t exc_vector;
 53	const uint32_t *exc_addr; 
 54	uintptr_t exc_size;
 55}; 
 56
 57#include <sys/param.h>
 58#include <sys/device.h>
 59#include <prop/proplib.h>
 60
 61/* export from ibm4xx/autoconf.c */
 62extern void (*md_device_register)(device_t dev, void *aux);
 63
 64/* export from ibm4xx/machdep.c */
 65extern void (*md_consinit)(void);
 66extern void (*md_cpu_startup)(void);
 67
 68/* export from ibm4xx/ibm40x_machdep.c */
 69extern void ibm40x_memsize_init(u_int, u_int);
 70
 71/* export from ibm4xx/ibm4xx_machdep.c */
 72extern void ibm4xx_init(vaddr_t, vaddr_t, void (*)(void));
 73extern void ibm4xx_cpu_startup(const char *);
 74extern void ibm4xx_dumpsys(void);
 75extern void ibm4xx_install_extint(void (*)(void));
 76
 77/* export from ibm4xx/ibm4xx_autoconf.c */
 78extern void ibm4xx_device_register(device_t, void *, int);
 79
 80/* export from ibm4xx/clock.c */
 81extern void calc_delayconst(void);
 82
 83/* export from ibm4xx/4xx_locore.S */
 84extern void ppc4xx_reset(void) __dead;
 85
 86extern void intr_init(void);
 87
 88/*
 89 * DCR (Device Control Register) access. These have to be
 90 * macros because register address is encoded as immediate
 91 * operand.
 92 */
 93static __inline __always_inline void
 94mtdcr(const int reg, uint32_t val)
 95{
 96	__asm volatile("mtdcr %0,%1" : : "K"(reg), "r"(val));
 97}
 98
 99static __inline __always_inline uint32_t
100mfdcr(const int reg)
101{
102	uint32_t val;	
103	
104	__asm volatile("mfdcr %0,%1" : "=r"(val) : "K"(reg));
105	return val;
106}
107
108static __inline void
109mtcpr(int reg, uint32_t val)
110{
111	mtdcr(DCR_CPR0_CFGADDR, reg);
112	mtdcr(DCR_CPR0_CFGDATA, val);
113}
114
115static __inline uint32_t
116mfcpr(int reg)
117{
118	mtdcr(DCR_CPR0_CFGADDR, reg);
119	return mfdcr(DCR_CPR0_CFGDATA);
120}
121
122static void inline
123mtsdr(int reg, uint32_t val)
124{
125	mtdcr(DCR_SDR0_CFGADDR, reg);
126	mtdcr(DCR_SDR0_CFGDATA, val);
127}
128
129static __inline uint32_t
130mfsdr(int reg)
131{
132	mtdcr(DCR_SDR0_CFGADDR, reg);
133	return mfdcr(DCR_SDR0_CFGDATA);
134}
135
136#include <powerpc/pic/picvar.h>
137
138extern struct pic_ops pic_uic403;
139extern struct pic_ops pic_uic0;
140extern struct pic_ops pic_uic1;
141extern struct pic_ops pic_uic2;
142
143extern paddr_t msgbuf_paddr;
144extern vaddr_t msgbuf_vaddr;
145extern char msgbuf[MSGBUFSIZE];
146#endif /* _KERNEL */
147
148/* Board info dictionary */
149extern prop_dictionary_t board_properties;
150extern void board_info_init(void);
151
152#endif	/* _IBM4XX_CPU_H_ */