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      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)
     51 struct 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 */
     62 extern void (*md_device_register)(device_t dev, void *aux);
     63 
     64 /* export from ibm4xx/machdep.c */
     65 extern void (*md_consinit)(void);
     66 extern void (*md_cpu_startup)(void);
     67 
     68 /* export from ibm4xx/ibm40x_machdep.c */
     69 extern void ibm40x_memsize_init(u_int, u_int);
     70 
     71 /* export from ibm4xx/ibm4xx_machdep.c */
     72 extern void ibm4xx_init(vaddr_t, vaddr_t, void (*)(void));
     73 extern void ibm4xx_cpu_startup(const char *);
     74 extern void ibm4xx_dumpsys(void);
     75 extern void ibm4xx_install_extint(void (*)(void));
     76 
     77 /* export from ibm4xx/ibm4xx_autoconf.c */
     78 extern void ibm4xx_device_register(device_t, void *, int);
     79 
     80 /* export from ibm4xx/clock.c */
     81 extern void calc_delayconst(void);
     82 
     83 /* export from ibm4xx/4xx_locore.S */
     84 extern void ppc4xx_reset(void) __dead;
     85 
     86 extern 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  */
     93 static __inline __always_inline void
     94 mtdcr(const int reg, uint32_t val)
     95 {
     96 	__asm volatile("mtdcr %0,%1" : : "K"(reg), "r"(val));
     97 }
     98 
     99 static __inline __always_inline uint32_t
    100 mfdcr(const int reg)
    101 {
    102 	uint32_t val;
    103 
    104 	__asm volatile("mfdcr %0,%1" : "=r"(val) : "K"(reg));
    105 	return val;
    106 }
    107 
    108 static __inline void
    109 mtcpr(int reg, uint32_t val)
    110 {
    111 	mtdcr(DCR_CPR0_CFGADDR, reg);
    112 	mtdcr(DCR_CPR0_CFGDATA, val);
    113 }
    114 
    115 static __inline uint32_t
    116 mfcpr(int reg)
    117 {
    118 	mtdcr(DCR_CPR0_CFGADDR, reg);
    119 	return mfdcr(DCR_CPR0_CFGDATA);
    120 }
    121 
    122 static void inline
    123 mtsdr(int reg, uint32_t val)
    124 {
    125 	mtdcr(DCR_SDR0_CFGADDR, reg);
    126 	mtdcr(DCR_SDR0_CFGDATA, val);
    127 }
    128 
    129 static __inline uint32_t
    130 mfsdr(int reg)
    131 {
    132 	mtdcr(DCR_SDR0_CFGADDR, reg);
    133 	return mfdcr(DCR_SDR0_CFGDATA);
    134 }
    135 
    136 #include <powerpc/pic/picvar.h>
    137 
    138 extern struct pic_ops pic_uic403;
    139 extern struct pic_ops pic_uic0;
    140 extern struct pic_ops pic_uic1;
    141 extern struct pic_ops pic_uic2;
    142 
    143 extern paddr_t msgbuf_paddr;
    144 extern vaddr_t msgbuf_vaddr;
    145 extern char msgbuf[MSGBUFSIZE];
    146 #endif /* _KERNEL */
    147 
    148 /* Board info dictionary */
    149 extern prop_dictionary_t board_properties;
    150 extern void board_info_init(void);
    151 
    152 #endif	/* _IBM4XX_CPU_H_ */
    153