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
mtdcr(const int reg,uint32_t val)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
mfdcr(const int reg)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
mtcpr(int reg,uint32_t val)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
mfcpr(int reg)116 mfcpr(int reg)
117 {
118 mtdcr(DCR_CPR0_CFGADDR, reg);
119 return mfdcr(DCR_CPR0_CFGDATA);
120 }
121
122 static void inline
mtsdr(int reg,uint32_t val)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
mfsdr(int reg)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