1 /*-
2 * Copyright (c) 2012 Ganbold Tsagaankhuu <ganbold@freebsd.org>
3 * Copyright (c) 2015-2016 Emmanuel Vadot <manu@freebsd.org>
4 * All rights reserved.
5 *
6 * This code is derived from software written for Brini by Mark Brinicombe
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29
30 * from: FreeBSD: //depot/projects/arm/src/sys/arm/ti/ti_machdep.c
31 */
32
33 #include "opt_ddb.h"
34 #include "opt_platform.h"
35
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/bus.h>
42 #include <sys/devmap.h>
43
44 #include <vm/vm.h>
45 #include <vm/pmap.h>
46
47 #include <machine/bus.h>
48 #include <machine/machdep.h>
49 #include <machine/platformvar.h>
50
51 #include <dev/fdt/fdt_common.h>
52
53 #include <arm/allwinner/aw_mp.h>
54 #include <arm/allwinner/aw_wdog.h>
55 #include <arm/allwinner/aw_machdep.h>
56
57 #include "platform_if.h"
58
59 static u_int soc_type;
60 static u_int soc_family;
61
62 static int
a10_attach(platform_t plat)63 a10_attach(platform_t plat)
64 {
65 soc_type = ALLWINNERSOC_A10;
66 soc_family = ALLWINNERSOC_SUN4I;
67 return (0);
68 }
69
70 static int
a13_attach(platform_t plat)71 a13_attach(platform_t plat)
72 {
73 soc_type = ALLWINNERSOC_A13;
74 soc_family = ALLWINNERSOC_SUN5I;
75 return (0);
76 }
77
78 static int
a20_attach(platform_t plat)79 a20_attach(platform_t plat)
80 {
81 soc_type = ALLWINNERSOC_A20;
82 soc_family = ALLWINNERSOC_SUN7I;
83
84 return (0);
85 }
86
87 static int
a31_attach(platform_t plat)88 a31_attach(platform_t plat)
89 {
90 soc_type = ALLWINNERSOC_A31;
91 soc_family = ALLWINNERSOC_SUN6I;
92
93 return (0);
94 }
95
96 static int
a31s_attach(platform_t plat)97 a31s_attach(platform_t plat)
98 {
99 soc_type = ALLWINNERSOC_A31S;
100 soc_family = ALLWINNERSOC_SUN6I;
101
102 return (0);
103 }
104
105 static int
a83t_attach(platform_t plat)106 a83t_attach(platform_t plat)
107 {
108 soc_type = ALLWINNERSOC_A83T;
109 soc_family = ALLWINNERSOC_SUN8I;
110
111 return (0);
112 }
113
114 static int
h3_attach(platform_t plat)115 h3_attach(platform_t plat)
116 {
117 soc_type = ALLWINNERSOC_H3;
118 soc_family = ALLWINNERSOC_SUN8I;
119
120 return (0);
121 }
122
123 static vm_offset_t
allwinner_lastaddr(platform_t plat)124 allwinner_lastaddr(platform_t plat)
125 {
126
127 return (devmap_lastaddr());
128 }
129
130 /*
131 * Set up static device mappings.
132 *
133 * This covers all the on-chip device with 1MB section mappings, which is good
134 * for performance (uses fewer TLB entries for device access).
135 *
136 * XXX It also covers a block of SRAM and some GPU (mali400) stuff that maybe
137 * shouldn't be device-mapped. The original code mapped a 4MB block, but
138 * perhaps a 1MB block would be more appropriate.
139 */
140 static int
allwinner_devmap_init(platform_t plat)141 allwinner_devmap_init(platform_t plat)
142 {
143
144 devmap_add_entry(0x01C00000, 0x00400000); /* 4MB */
145
146 return (0);
147 }
148
149 static void
allwinner_cpu_reset(platform_t plat)150 allwinner_cpu_reset(platform_t plat)
151 {
152 aw_wdog_watchdog_reset();
153 printf("Reset failed!\n");
154 while (1);
155 }
156
157 #if defined(SOC_ALLWINNER_A10)
158 static platform_method_t a10_methods[] = {
159 PLATFORMMETHOD(platform_attach, a10_attach),
160 PLATFORMMETHOD(platform_lastaddr, allwinner_lastaddr),
161 PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
162 PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
163
164 PLATFORMMETHOD_END,
165 };
166 FDT_PLATFORM_DEF(a10, "a10", 0, "allwinner,sun4i-a10", 200);
167 #endif
168
169 #if defined(SOC_ALLWINNER_A13)
170 static platform_method_t a13_methods[] = {
171 PLATFORMMETHOD(platform_attach, a13_attach),
172 PLATFORMMETHOD(platform_lastaddr, allwinner_lastaddr),
173 PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
174 PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
175
176 PLATFORMMETHOD_END,
177 };
178 FDT_PLATFORM_DEF(a13, "a13", 0, "allwinner,sun5i-a13", 200);
179 #endif
180
181 #if defined(SOC_ALLWINNER_A20)
182 static platform_method_t a20_methods[] = {
183 PLATFORMMETHOD(platform_attach, a20_attach),
184 PLATFORMMETHOD(platform_lastaddr, allwinner_lastaddr),
185 PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
186 PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
187
188 #ifdef SMP
189 PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
190 PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
191 #endif
192 PLATFORMMETHOD_END,
193 };
194 FDT_PLATFORM_DEF(a20, "a20", 0, "allwinner,sun7i-a20", 200);
195 #endif
196
197 #if defined(SOC_ALLWINNER_A31)
198 static platform_method_t a31_methods[] = {
199 PLATFORMMETHOD(platform_attach, a31_attach),
200 PLATFORMMETHOD(platform_lastaddr, allwinner_lastaddr),
201 PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
202 PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
203
204 #ifdef SMP
205 PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
206 PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
207 #endif
208 PLATFORMMETHOD_END,
209 };
210 FDT_PLATFORM_DEF(a31, "a31", 0, "allwinner,sun6i-a31", 200);
211 #endif
212
213 #if defined(SOC_ALLWINNER_A31S)
214 static platform_method_t a31s_methods[] = {
215 PLATFORMMETHOD(platform_attach, a31s_attach),
216 PLATFORMMETHOD(platform_lastaddr, allwinner_lastaddr),
217 PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
218 PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
219
220 #ifdef SMP
221 PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
222 PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
223 #endif
224 PLATFORMMETHOD_END,
225 };
226 FDT_PLATFORM_DEF(a31s, "a31s", 0, "allwinner,sun6i-a31s", 200);
227 #endif
228
229 #if defined(SOC_ALLWINNER_A83T)
230 static platform_method_t a83t_methods[] = {
231 PLATFORMMETHOD(platform_attach, a83t_attach),
232 PLATFORMMETHOD(platform_lastaddr, allwinner_lastaddr),
233 PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
234 PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
235
236 #ifdef SMP
237 PLATFORMMETHOD(platform_mp_start_ap, a83t_mp_start_ap),
238 PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
239 #endif
240 PLATFORMMETHOD_END,
241 };
242 FDT_PLATFORM_DEF(a83t, "a83t", 0, "allwinner,sun8i-a83t", 200);
243 #endif
244
245 #if defined(SOC_ALLWINNER_H3)
246 static platform_method_t h3_methods[] = {
247 PLATFORMMETHOD(platform_attach, h3_attach),
248 PLATFORMMETHOD(platform_lastaddr, allwinner_lastaddr),
249 PLATFORMMETHOD(platform_devmap_init, allwinner_devmap_init),
250 PLATFORMMETHOD(platform_cpu_reset, allwinner_cpu_reset),
251
252 #ifdef SMP
253 PLATFORMMETHOD(platform_mp_start_ap, aw_mp_start_ap),
254 PLATFORMMETHOD(platform_mp_setmaxid, aw_mp_setmaxid),
255 #endif
256 PLATFORMMETHOD_END,
257 };
258 FDT_PLATFORM_DEF(h3, "h3", 0, "allwinner,sun8i-h3", 200);
259 #endif
260
261 u_int
allwinner_soc_type(void)262 allwinner_soc_type(void)
263 {
264 return (soc_type);
265 }
266
267 u_int
allwinner_soc_family(void)268 allwinner_soc_family(void)
269 {
270 return (soc_family);
271 }
272