1 /* $NetBSD: ar_conf.c,v 1.3 2015/06/09 22:50:50 matt Exp $ */
2 /*-
3 * Copyright (c) 2011 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Matt Thomas of 3am Software Foundry.
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 *
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <sys/cdefs.h>
32
33 __KERNEL_RCSID(0, "$NetBSD: ar_conf.c,v 1.3 2015/06/09 22:50:50 matt Exp $");
34
35 #include <sys/param.h>
36 #include <sys/cpu.h>
37
38 #include "opt_wisoc.h"
39
40 #include <mips/cpuregs.h>
41 #include <mips/locore.h>
42
43 #include <mips/atheros/include/platform.h>
44 #include <mips/atheros/include/ar9344reg.h>
45
46 struct atheros_chip {
47 const struct atheros_platformsw *ac_platformsw;
48 const struct atheros_boardsw *ac_boardsw;
49 uint8_t ac_chipid;
50 uint8_t ac_chipmask;
51 uint8_t ac_cid;
52 uint8_t ac_pid;
53 const char ac_name[8];
54 };
55
56 static const struct atheros_chip chips[] = {
57 #ifdef WISOC_AR5312
58 {
59 .ac_platformsw = &ar5312_platformsw,
60 .ac_boardsw = &ar5312_boardsw,
61 .ac_chipid = ARCHIP_AR5312,
62 .ac_chipmask = 0xff,
63 .ac_cid = MIPS_PRID_CID_MTI,
64 .ac_pid = MIPS_4Kc,
65 .ac_name = "AR5312"
66 },
67 #endif
68 #ifdef WISOC_AR5315
69 {
70 .ac_platformsw = &ar5315_platformsw,
71 .ac_boardsw = &ar5315_boardsw,
72 .ac_chipid = ARCHIP_AR5315,
73 .ac_chipmask = 0xf0,
74 .ac_cid = MIPS_PRID_CID_MTI,
75 .ac_pid = MIPS_4Kc,
76 .ac_name = "AR5315"
77 },
78 #endif
79 #ifdef WISOC_AR7100
80 {
81 .ac_platformsw = &ar7100_platformsw,
82 .ac_chipid = ARCHIP_AR7130,
83 .ac_chipmask = 0xf3,
84 .ac_cid = MIPS_PRID_CID_MTI,
85 .ac_pid = MIPS_24K,
86 .ac_name = "AR7130"
87 }, {
88 .ac_platformsw = &ar7100_platformsw,
89 .ac_chipid = ARCHIP_AR7141,
90 .ac_chipmask = 0xf3,
91 .ac_cid = MIPS_PRID_CID_MTI,
92 .ac_pid = MIPS_24K,
93 .ac_name = "AR7141"
94 }, {
95 .ac_platformsw = &ar7100_platformsw,
96 .ac_chipid = ARCHIP_AR7161,
97 .ac_chipmask = 0xf3,
98 .ac_cid = MIPS_PRID_CID_MTI,
99 .ac_pid = MIPS_24K,
100 .ac_name = "AR7161"
101 },
102 #endif
103 #ifdef WISOC_AR9344
104 {
105 .ac_platformsw = &ar9344_platformsw,
106 .ac_chipid = 0x20, /* 7240? */
107 .ac_chipmask = 0xff,
108 .ac_cid = MIPS_PRID_CID_MTI,
109 .ac_pid = MIPS_74K,
110 .ac_name = "AR7240"
111 }, {
112 .ac_platformsw = &ar9344_platformsw,
113 .ac_chipid = ARCHIP_AR9344,
114 .ac_chipmask = 0xff,
115 .ac_cid = MIPS_PRID_CID_MTI,
116 .ac_pid = MIPS_74K,
117 .ac_name = "AR9344"
118 },
119 #endif
120 };
121
122 __CTASSERT(__arraycount(chips) > 0);
123
124 const struct atheros_platformsw *platformsw;
125
126 static const struct atheros_chip *my_chip;
127
128 static struct arfreqs chip_freqs;
129
130 const char *
atheros_get_cpuname(void)131 atheros_get_cpuname(void)
132 {
133 return my_chip->ac_name;
134 }
135
136 u_int
atheros_get_chipid(void)137 atheros_get_chipid(void)
138 {
139 return my_chip->ac_chipid;
140 }
141
142 uint32_t
atheros_get_uart_freq(void)143 atheros_get_uart_freq(void)
144 {
145 if (chip_freqs.freq_uart)
146 return chip_freqs.freq_uart;
147
148 return chip_freqs.freq_bus;
149 }
150
151 uint32_t
atheros_get_bus_freq(void)152 atheros_get_bus_freq(void)
153 {
154 return chip_freqs.freq_bus;
155 }
156
157 uint32_t
atheros_get_cpu_freq(void)158 atheros_get_cpu_freq(void)
159 {
160 return chip_freqs.freq_cpu;
161 }
162
163 uint32_t
atheros_get_mem_freq(void)164 atheros_get_mem_freq(void)
165 {
166 return chip_freqs.freq_mem;
167 }
168
169 void
atheros_set_platformsw(void)170 atheros_set_platformsw(void)
171 {
172 const u_int cid = MIPS_PRID_CID(mips_options.mips_cpu_id);
173 const u_int pid = MIPS_PRID_IMPL(mips_options.mips_cpu_id);
174
175 for (const struct atheros_chip *ac = chips;
176 ac < chips + __arraycount(chips);
177 ac++) {
178 const struct atheros_platformsw * const apsw = ac->ac_platformsw;
179 if (cid != ac->ac_cid || pid != ac->ac_pid)
180 continue;
181
182 const uint32_t revision_id = *(volatile uint32_t *)
183 MIPS_PHYS_TO_KSEG1(apsw->apsw_revision_id_addr);
184 const uint32_t chipid = AR9344_REVISION_CHIPID(revision_id);
185
186 if ((chipid & ac->ac_chipmask) == ac->ac_chipid) {
187 platformsw = apsw;
188 my_chip = ac;
189 atheros_early_consinit();
190 printf("Early console started!\n");
191 (*apsw->apsw_get_freqs)(&chip_freqs);
192 printf("freqs: cpu=%u bus=%u mem=%u ref=%u pll=%u\n",
193 chip_freqs.freq_cpu,
194 chip_freqs.freq_bus,
195 chip_freqs.freq_mem,
196 chip_freqs.freq_ref,
197 chip_freqs.freq_pll);
198 return;
199 }
200 }
201 panic("%s: unrecognized platform", __func__);
202 }
203
204 #include "ath_arbus.h"
205 #if NATH_ARBUS > 0
206 #include <ah_soc.h>
207
208 const struct ar531x_boarddata *
atheros_get_board_info(void)209 atheros_get_board_info(void)
210 {
211 const struct atheros_boardsw * const boardsw = my_chip->ac_boardsw;
212 if (boardsw == NULL)
213 return NULL;
214 return (*boardsw->absw_get_board_info)();
215 }
216
217 /*
218 * Locate board and radio configuration data in flash.
219 */
220 int
atheros_get_board_config(struct ar531x_config * config)221 atheros_get_board_config(struct ar531x_config *config)
222 {
223 const struct atheros_boardsw * const boardsw = my_chip->ac_boardsw;
224 if (boardsw == NULL)
225 return ENOENT;
226
227 config->board = (*boardsw->absw_get_board_info)();
228 if (config->board == NULL)
229 return ENOENT;
230
231 config->radio = (*boardsw->absw_get_radio_info)();
232 if (config->radio == NULL)
233 return ENOENT; /* XXX distinct code */
234
235 return 0;
236 }
237 #endif /* NATH_ARBUS > 0 */
238