1 /* $NetBSD: cpu.h,v 1.21 2012/07/27 22:13:58 matt 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 #include <powerpc/psl.h> 42 #include <powerpc/spr.h> 43 #include <powerpc/ibm4xx/spr.h> 44 #include <powerpc/ibm4xx/dcr4xx.h> 45 46 #if defined(_KERNEL) 47 extern char bootpath[]; 48 49 struct exc_info { 50 vaddr_t exc_vector; 51 const uint32_t *exc_addr; 52 uintptr_t exc_size; 53 }; 54 55 #include <sys/param.h> 56 #include <sys/device.h> 57 #include <prop/proplib.h> 58 59 /* export from ibm4xx/autoconf.c */ 60 extern void (*md_device_register)(device_t dev, void *aux); 61 62 /* export from ibm4xx/machdep.c */ 63 extern void (*md_consinit)(void); 64 extern void (*md_cpu_startup)(void); 65 66 /* export from ibm4xx/ibm40x_machdep.c */ 67 extern void ibm40x_memsize_init(u_int, u_int); 68 69 /* export from ibm4xx/ibm4xx_machdep.c */ 70 extern void ibm4xx_init(vaddr_t, vaddr_t, void (*)(void)); 71 extern void ibm4xx_cpu_startup(const char *); 72 extern void ibm4xx_dumpsys(void); 73 extern void ibm4xx_install_extint(void (*)(void)); 74 75 /* export from ibm4xx/ibm4xx_autoconf.c */ 76 extern void ibm4xx_device_register(device_t dev, void *aux); 77 78 /* export from ibm4xx/clock.c */ 79 extern void calc_delayconst(void); 80 81 /* export from ibm4xx/4xx_locore.S */ 82 extern void ppc4xx_reset(void) __dead; 83 84 extern void intr_init(void); 85 86 /* 87 * DCR (Device Control Register) access. These have to be 88 * macros because register address is encoded as immediate 89 * operand. 90 */ 91 static inline void 92 mtdcr(int reg, uint32_t val) 93 { 94 __asm volatile("mtdcr %0,%1" : : "K"(reg), "r"(val)); 95 } 96 97 static inline uint32_t 98 mfdcr(int reg) 99 { 100 uint32_t val; 101 102 __asm volatile("mfdcr %0,%1" : "=r"(val) : "K"(reg)); 103 return val; 104 } 105 106 static inline void 107 mtcpr(int reg, uint32_t val) 108 { 109 mtdcr(DCR_CPR0_CFGADDR, reg); 110 mtdcr(DCR_CPR0_CFGDATA, val); 111 } 112 113 static inline uint32_t 114 mfcpr(int reg) 115 { 116 mtdcr(DCR_CPR0_CFGADDR, reg); 117 return mfdcr(DCR_CPR0_CFGDATA); 118 } 119 120 static void inline 121 mtsdr(int reg, uint32_t val) 122 { 123 mtdcr(DCR_SDR0_CFGADDR, reg); 124 mtdcr(DCR_SDR0_CFGDATA, val); 125 } 126 127 static inline uint32_t 128 mfsdr(int reg) 129 { 130 mtdcr(DCR_SDR0_CFGADDR, reg); 131 return mfdcr(DCR_SDR0_CFGDATA); 132 } 133 134 #include <powerpc/pic/picvar.h> 135 136 extern struct pic_ops pic_uic403; 137 extern struct pic_ops pic_uic0; 138 extern struct pic_ops pic_uic1; 139 extern struct pic_ops pic_uic2; 140 141 extern paddr_t msgbuf_paddr; 142 extern vaddr_t msgbuf_vaddr; 143 extern char msgbuf[MSGBUFSIZE]; 144 #endif /* _KERNEL */ 145 146 /* Board info dictionary */ 147 extern prop_dictionary_t board_properties; 148 extern void board_info_init(void); 149 150 /*****************************************************************************/ 151 /* THIS CODE IS OBSOLETE. WILL BE REMOVED */ 152 /* 153 * Board configuration structure from the OpenBIOS. 154 */ 155 struct board_cfg_data { 156 unsigned char usr_config_ver[4]; 157 unsigned char rom_sw_ver[30]; 158 unsigned int mem_size; 159 unsigned char mac_address_local[6]; 160 unsigned char mac_address_pci[6]; 161 unsigned int processor_speed; 162 unsigned int plb_speed; 163 unsigned int pci_speed; 164 }; 165 166 extern struct board_cfg_data board_data; 167 /*****************************************************************************/ 168 169 #endif /* _IBM4XX_CPU_H_ */ 170