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