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
54 static void findroot(void);
55
56 void
cpu_configure(void)57 cpu_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
72 void
cpu_rootconf(void)73 cpu_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
86 extern int netboot;
87
88 static void
findroot(void)89 findroot(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
143 static void
prop_set_cnmac(device_t dev)144 prop_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
185 static void
prop_set_octeon_gmx(device_t dev)186 prop_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
206 void
device_register(device_t dev,void * aux)207 device_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