1 /* $NetBSD: mainbus.c,v 1.10 2021/09/06 14:03:18 jmcneill Exp $ */ 2 3 /* 4 * Copyright (c) 2007 5 * Internet Initiative Japan, Inc. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.10 2021/09/06 14:03:18 jmcneill Exp $"); 31 32 #define _MIPS_BUS_DMA_PRIVATE 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/device.h> 37 #include <sys/bus.h> 38 39 #include <mips/cavium/include/mainbusvar.h> 40 #include <mips/cavium/octeonvar.h> 41 42 #include <dev/fdt/fdtvar.h> 43 44 static int mainbus_match(device_t, struct cfdata *, void *); 45 static void mainbus_attach(device_t, device_t, void *); 46 static void mainbus_attach_static(device_t); 47 static void mainbus_attach_devicetree(device_t); 48 static int mainbus_submatch(device_t, cfdata_t, const int *, void *); 49 static int mainbus_print(void *, const char *); 50 51 static void simplebus_bus_io_init(bus_space_tag_t, void *); 52 53 CFATTACH_DECL_NEW(mainbus, sizeof(device_t), mainbus_match, mainbus_attach, 54 NULL, NULL); 55 56 static struct mips_bus_space simplebus_bus_tag; 57 58 static struct mips_bus_dma_tag simplebus_dma_tag = { 59 ._cookie = NULL, 60 ._wbase = 0, 61 ._bounce_alloc_lo = 0, 62 ._bounce_alloc_hi = 0, 63 ._dmamap_ops = _BUS_DMAMAP_OPS_INITIALIZER, 64 ._dmamem_ops = _BUS_DMAMEM_OPS_INITIALIZER, 65 ._dmatag_ops = _BUS_DMATAG_OPS_INITIALIZER, 66 }; 67 68 static int 69 mainbus_match(device_t parent, struct cfdata *match, void *aux) 70 { 71 static int once = 0; 72 73 if (once != 0) 74 return 0; 75 once = 1; 76 77 return 1; 78 } 79 80 static void 81 mainbus_attach(device_t parent, device_t self, void *aux) 82 { 83 aprint_normal("\n"); 84 85 if (fdtbus_get_data() != NULL) { 86 mainbus_attach_devicetree(self); 87 } else { 88 mainbus_attach_static(self); 89 } 90 } 91 92 static void 93 mainbus_attach_static(device_t self) 94 { 95 struct mainbus_attach_args aa; 96 int i; 97 98 for (i = 0; i < (int)mainbus_ndevs; i++) { 99 aa.aa_name = mainbus_devs[i]; 100 config_found(self, &aa, mainbus_print, 101 CFARGS(.submatch = mainbus_submatch, 102 .iattr = "mainbus")); 103 } 104 } 105 106 extern struct octeon_config octeon_configuration; 107 extern void octpow_bootstrap(struct octeon_config *); 108 extern void octfpa_bootstrap(struct octeon_config *); 109 110 static void 111 mainbus_attach_devicetree(device_t self) 112 { 113 const struct fdt_console *cons = fdtbus_get_console(); 114 struct mainbus_attach_args aa; 115 struct fdt_attach_args faa; 116 u_int uart_freq; 117 118 aa.aa_name = "cpunode"; 119 config_found(self, &aa, mainbus_print, 120 CFARGS(.submatch = mainbus_submatch, 121 .iattr = "mainbus")); 122 123 aa.aa_name = "iobus"; 124 config_found(self, &aa, mainbus_print, 125 CFARGS(.submatch = mainbus_submatch, 126 .iattr = "mainbus")); 127 128 simplebus_bus_io_init(&simplebus_bus_tag, NULL); 129 130 faa.faa_bst = &simplebus_bus_tag; 131 faa.faa_dmat = &simplebus_dma_tag; 132 faa.faa_name = ""; 133 134 if (cons != NULL) { 135 faa.faa_phandle = fdtbus_get_stdout_phandle(); 136 137 if (of_getprop_uint32(faa.faa_phandle, "clock-frequency", 138 &uart_freq) != 0) { 139 uart_freq = octeon_ioclock_speed(); 140 } 141 142 if (uart_freq > 0) 143 delay(640000000 / uart_freq); 144 145 cons->consinit(&faa, uart_freq); 146 } 147 148 faa.faa_phandle = OF_peer(0); 149 config_found(self, &faa, NULL, 150 CFARGS(.iattr = "fdt")); 151 } 152 153 static int 154 mainbus_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 155 { 156 struct mainbus_attach_args *aa = aux; 157 158 if (strcmp(cf->cf_name, aa->aa_name) != 0) 159 return 0; 160 161 return config_match(parent, cf, aux); 162 } 163 164 static int 165 mainbus_print(void *aux, const char *pnp) 166 { 167 struct mainbus_attach_args *aa = aux; 168 169 if (pnp != 0) 170 return QUIET; 171 172 if (pnp) 173 aprint_normal("%s at %s", aa->aa_name, pnp); 174 175 return UNCONF; 176 } 177 178 /* ---- bus_space(9) */ 179 #define CHIP simplebus 180 #define CHIP_IO 181 #define CHIP_ACCESS_SIZE 8 182 183 #define CHIP_W1_BUS_START(v) 0x0000000000000000ULL 184 #define CHIP_W1_BUS_END(v) 0x7fffffffffffffffULL 185 #define CHIP_W1_SYS_START(v) 0x8000000000000000ULL 186 #define CHIP_W1_SYS_END(v) 0xffffffffffffffffULL 187 188 #include <mips/mips/bus_space_alignstride_chipdep.c> 189 190 bus_space_tag_t 191 fdtbus_bus_tag_create(int phandle, uint32_t flags) 192 { 193 return &simplebus_bus_tag; 194 } 195