1/* $NetBSD: autoconf.c,v 1.10 2022/02/12 03:24:34 riastradh Exp $ */ 2 3/* 4 * Copyright 2002 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Simon Burge 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#include <sys/cdefs.h> 39__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.10 2022/02/12 03:24:34 riastradh Exp $"); 40 41#include <sys/param.h> 42#include <sys/systm.h> 43#include <sys/buf.h> 44#include <sys/conf.h> 45#include <sys/device.h> 46 47#include <net/if_ether.h> 48 49#include <mips/cpu.h> 50#include <mips/locore.h> 51 52#include <evbmips/cavium/octeon_uboot.h> 53 54static void findroot(void); 55 56void 57cpu_configure(void) 58{ 59 60 intr_init(); 61 62 /* Kick off autoconfiguration. */ 63 (void)splhigh(); 64 if (config_rootfound("mainbus", NULL) == NULL) 65 panic("no mainbus found"); 66 67 /* XXX need this? */ 68 (void)spl0(); 69 KDASSERT(mips_cp0_status_read() & MIPS_SR_INT_IE); 70} 71 72void 73cpu_rootconf(void) 74{ 75 76#ifndef MEMORY_DISK_IS_ROOT 77 findroot(); 78#endif 79 80 printf("boot device: %s\n", 81 booted_device ? device_xname(booted_device) : "<unknown>"); 82 83 rootconf(); 84} 85 86extern int netboot; 87 88static void 89findroot(void) 90{ 91 device_t dv; 92 deviter_t di; 93 94 if (booted_device) 95 return; 96 97 if (rootspec && *rootspec) { 98 /* if we get passed root=octethN, convert to cnmacN */ 99 if (strncmp(rootspec, "octeth", 6) == 0) { 100 /* allow for up to 100 interfaces */ 101 static char buf[sizeof("cnmacXX")]; 102 const char *cp = &rootspec[strlen("octeth")]; 103 104 KASSERT(strlen(cp) < sizeof("XX")); 105 snprintf(buf, sizeof(buf), "cnmac%s", cp); 106 rootspec = buf; 107 } 108 109 /* XXX hard coded "cnmac" for network boot */ 110 if (strncmp(rootspec, "cnmac", 5) == 0) { 111 rootfstype = "nfs"; 112 netboot = 1; 113 return; 114 } 115 116 /* 117 * XXX 118 * Assume that if the root spec is not a cnmac, it'll 119 * be a sd. handled below. Should be fixed to handle 120 * multiple sd devices. 121 */ 122 } 123 124 if (netboot == 0) { 125 /* if no root device specified, default to a "sd" device */ 126 for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); dv != NULL; 127 dv = deviter_next(&di)) { 128 if (device_class(dv) == DV_DISK && 129 device_is_a(dv, "sd")) 130 booted_device = dv; 131 } 132 deviter_release(&di); 133 } 134 135 /* 136 * XXX Match up MBR boot specification with BSD disklabel for root? 137 */ 138 booted_partition = 0; 139 140 return; 141} 142 143static void 144prop_set_cnmac(device_t dev) 145{ 146 prop_dictionary_t dict = device_properties(dev); 147 prop_data_t pd; 148 prop_number_t pn; 149 uint8_t enaddr[ETHER_ADDR_LEN]; 150 uint32_t mac_lo; 151 int unit = device_unit(dev); 152 153 /* ethernet mac address */ 154 memcpy(enaddr, octeon_btinfo.obt_mac_addr_base, 155 sizeof(enaddr)); 156 mac_lo = enaddr[3] << 16; 157 mac_lo += enaddr[4] << 8; 158 mac_lo += enaddr[5]; 159 KASSERT(unit < octeon_btinfo.obt_mac_addr_count); 160 mac_lo += unit; 161 enaddr[3] = (mac_lo >> 16) & 0xff; 162 enaddr[4] = (mac_lo >> 8) & 0xff; 163 enaddr[5] = mac_lo & 0xff; 164 pd = prop_data_create_copy(enaddr, ETHER_ADDR_LEN); 165 KASSERT(pd != NULL); 166 prop_dictionary_set_and_rel(dict, "mac-address", pd); 167 168 /* ethernet phy address */ 169 switch (octeon_btinfo.obt_board_type) { 170 case BOARD_TYPE_UBIQUITI_E100: 171 case BOARD_TYPE_UBIQUITI_E120: 172 pn = prop_number_create_signed(7 - unit); 173 break; 174 case BOARD_TYPE_UBIQUITI_E300: 175 pn = prop_number_create_signed(4 + device_unit(dev)); 176 break; 177 default: 178 pn = prop_number_create_signed(-1); 179 break; 180 } 181 KASSERT(pn != NULL); 182 prop_dictionary_set_and_rel(dict, "phy-addr", pn); 183} 184 185static void 186prop_set_octeon_gmx(device_t dev) 187{ 188 prop_dictionary_t dict = device_properties(dev); 189 prop_number_t tx, rx; 190 191 /* ethernet rgmii phy dependent timing parameters. */ 192 tx = rx = NULL; 193 switch (octeon_btinfo.obt_board_type) { 194 case BOARD_TYPE_UBIQUITI_E100: 195 case BOARD_TYPE_UBIQUITI_E120: 196 tx = prop_number_create_signed(16); 197 rx = prop_number_create_signed(0); 198 break; 199 } 200 if (tx) 201 prop_dictionary_set_and_rel(dict, "rgmii-tx", tx); 202 if (rx) 203 prop_dictionary_set_and_rel(dict, "rgmii-rx", rx); 204} 205 206void 207device_register(device_t dev, void *aux) 208{ 209 210 if ((booted_device == NULL) && (netboot == 1)) 211 if (device_class(dev) == DV_IFNET) 212 booted_device = dev; 213 214 if (device_is_a(dev, "cnmac")) { 215 prop_set_cnmac(dev); 216 } else if (device_is_a(dev, "octgmx")) { 217 prop_set_octeon_gmx(dev); 218 } 219} 220