sys/arm/allwinner/aw_machdep.c

   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 <arm/allwinner/aw_mp.h>
  52 #include <arm/allwinner/aw_wdog.h>
  53 #include <arm/allwinner/aw_machdep.h>
  54
  55 #include "platform_if.h"
  56
  57 static platform_attach_t a10_attach;
  58 static platform_attach_t a13_attach;
  59 static platform_attach_t a20_attach;
  60 static platform_attach_t a31_attach;
  61 static platform_attach_t a31s_attach;
  62 static platform_attach_t a83t_attach;
  63 static platform_attach_t h3_attach;
  64 static platform_devmap_init_t allwinner_devmap_init;
  65 static platform_cpu_reset_t allwinner_cpu_reset;
  66
  67 static u_int soc_type;
  68 static u_int soc_family;
  69
  70 static int
  71 a10_attach(platform_t plat)
  72 {
  73         soc_type = ALLWINNERSOC_A10;
  74         soc_family = ALLWINNERSOC_SUN4I;
  75         return (0);
  76 }
  77
  78 static int
  79 a13_attach(platform_t plat)
  80 {
  81         soc_type = ALLWINNERSOC_A13;
  82         soc_family = ALLWINNERSOC_SUN5I;
  83         return (0);
  84 }
  85
  86 static int
  87 a20_attach(platform_t plat)
  88 {
  89         soc_type = ALLWINNERSOC_A20;
  90         soc_family = ALLWINNERSOC_SUN7I;
  91
  92         return (0);
  93 }
  94
  95 static int
  96 a31_attach(platform_t plat)
  97 {
  98         soc_type = ALLWINNERSOC_A31;
  99         soc_family = ALLWINNERSOC_SUN6I;
 100
 101         return (0);
 102 }
 103
 104 static int
 105 a31s_attach(platform_t plat)
 106 {
 107         soc_type = ALLWINNERSOC_A31S;
 108         soc_family = ALLWINNERSOC_SUN6I;
 109
 110         return (0);
 111 }
 112
 113 static int
 114 a33_attach(platform_t plat)
 115 {
 116         soc_type = ALLWINNERSOC_A33;
 117         soc_family = ALLWINNERSOC_SUN8I;
 118
 119         return (0);
 120 }
 121
 122 static int
 123 a83t_attach(platform_t plat)
 124 {
 125         soc_type = ALLWINNERSOC_A83T;
 126         soc_family = ALLWINNERSOC_SUN8I;
 127
 128         return (0);
 129 }
 130
 131 static int
 132 h3_attach(platform_t plat)
 133 {
 134         soc_type = ALLWINNERSOC_H3;
 135         soc_family = ALLWINNERSOC_SUN8I;
 136
 137         return (0);
 138 }
 139
 140 /*
 141  * Set up static device mappings.
 142  *
 143  * This covers all the on-chip device with 1MB section mappings, which is good
 144  * for performance (uses fewer TLB entries for device access).
 145  *
 146  * XXX It also covers a block of SRAM and some GPU (mali400) stuff that maybe
 147  * shouldn't be device-mapped.  The original code mapped a 4MB block, but
 148  * perhaps a 1MB block would be more appropriate.
 149  */
 150 static int
 151 allwinner_devmap_init(platform_t plat)
 152 {
 153
 154         devmap_add_entry(0x01C00000, 0x00400000); /* 4MB */
 155
 156         return (0);
 157 }
 158
 159 static void
 160 allwinner_cpu_reset(platform_t plat)
 161 {
 162         aw_wdog_watchdog_reset();
 163         printf("Reset failed!\n");
 164         while (1);
 165 }
 166
 167 #if defined(SOC_ALLWINNER_A10)
 168 static platform_method_t a10_methods[] = {
 169         PLATFORMMETHOD(platform_attach,         a10_attach),
 170         PLATFORMMETHOD(platform_devmap_init,    allwinner_devmap_init),
 171         PLATFORMMETHOD(platform_cpu_reset,      allwinner_cpu_reset),
 172
 173         PLATFORMMETHOD_END,
 174 };
 175 FDT_PLATFORM_DEF(a10, "a10", 0, "allwinner,sun4i-a10", 200);
 176 #endif
 177
 178 #if defined(SOC_ALLWINNER_A13)
 179 static platform_method_t a13_methods[] = {
 180         PLATFORMMETHOD(platform_attach,         a13_attach),
 181         PLATFORMMETHOD(platform_devmap_init,    allwinner_devmap_init),
 182         PLATFORMMETHOD(platform_cpu_reset,      allwinner_cpu_reset),
 183
 184         PLATFORMMETHOD_END,
 185 };
 186 FDT_PLATFORM_DEF(a13, "a13", 0, "allwinner,sun5i-a13", 200);
 187 #endif
 188
 189 #if defined(SOC_ALLWINNER_A20)
 190 static platform_method_t a20_methods[] = {
 191         PLATFORMMETHOD(platform_attach,         a20_attach),
 192         PLATFORMMETHOD(platform_devmap_init,    allwinner_devmap_init),
 193         PLATFORMMETHOD(platform_cpu_reset,      allwinner_cpu_reset),
 194
 195 #ifdef SMP
 196         PLATFORMMETHOD(platform_mp_start_ap,    aw_mp_start_ap),
 197         PLATFORMMETHOD(platform_mp_setmaxid,    aw_mp_setmaxid),
 198 #endif
 199         PLATFORMMETHOD_END,
 200 };
 201 FDT_PLATFORM_DEF(a20, "a20", 0, "allwinner,sun7i-a20", 200);
 202 #endif
 203
 204 #if defined(SOC_ALLWINNER_A31)
 205 static platform_method_t a31_methods[] = {
 206         PLATFORMMETHOD(platform_attach,         a31_attach),
 207         PLATFORMMETHOD(platform_devmap_init,    allwinner_devmap_init),
 208         PLATFORMMETHOD(platform_cpu_reset,      allwinner_cpu_reset),
 209
 210 #ifdef SMP
 211         PLATFORMMETHOD(platform_mp_start_ap,    aw_mp_start_ap),
 212         PLATFORMMETHOD(platform_mp_setmaxid,    aw_mp_setmaxid),
 213 #endif
 214         PLATFORMMETHOD_END,
 215 };
 216 FDT_PLATFORM_DEF(a31, "a31", 0, "allwinner,sun6i-a31", 200);
 217 #endif
 218
 219 #if defined(SOC_ALLWINNER_A31S)
 220 static platform_method_t a31s_methods[] = {
 221         PLATFORMMETHOD(platform_attach,         a31s_attach),
 222         PLATFORMMETHOD(platform_devmap_init,    allwinner_devmap_init),
 223         PLATFORMMETHOD(platform_cpu_reset,      allwinner_cpu_reset),
 224
 225 #ifdef SMP
 226         PLATFORMMETHOD(platform_mp_start_ap,    aw_mp_start_ap),
 227         PLATFORMMETHOD(platform_mp_setmaxid,    aw_mp_setmaxid),
 228 #endif
 229         PLATFORMMETHOD_END,
 230 };
 231 FDT_PLATFORM_DEF(a31s, "a31s", 0, "allwinner,sun6i-a31s", 200);
 232 #endif
 233
 234 #if defined(SOC_ALLWINNER_A33)
 235 static platform_method_t a33_methods[] = {
 236         PLATFORMMETHOD(platform_attach,         a33_attach),
 237         PLATFORMMETHOD(platform_devmap_init,    allwinner_devmap_init),
 238         PLATFORMMETHOD(platform_cpu_reset,      allwinner_cpu_reset),
 239
 240 #ifdef SMP
 241         PLATFORMMETHOD(platform_mp_start_ap,    aw_mp_start_ap),
 242         PLATFORMMETHOD(platform_mp_setmaxid,    aw_mp_setmaxid),
 243 #endif
 244         PLATFORMMETHOD_END,
 245 };
 246 FDT_PLATFORM_DEF(a33, "a33", 0, "allwinner,sun8i-a33", 200);
 247 #endif
 248
 249 #if defined(SOC_ALLWINNER_A83T)
 250 static platform_method_t a83t_methods[] = {
 251         PLATFORMMETHOD(platform_attach,         a83t_attach),
 252         PLATFORMMETHOD(platform_devmap_init,    allwinner_devmap_init),
 253         PLATFORMMETHOD(platform_cpu_reset,      allwinner_cpu_reset),
 254
 255 #ifdef SMP
 256         PLATFORMMETHOD(platform_mp_start_ap,    a83t_mp_start_ap),
 257         PLATFORMMETHOD(platform_mp_setmaxid,    aw_mp_setmaxid),
 258 #endif
 259         PLATFORMMETHOD_END,
 260 };
 261 FDT_PLATFORM_DEF(a83t, "a83t", 0, "allwinner,sun8i-a83t", 200);
 262 #endif
 263
 264 #if defined(SOC_ALLWINNER_H2PLUS)
 265 static platform_method_t h2_plus_methods[] = {
 266         PLATFORMMETHOD(platform_attach,         h3_attach),
 267         PLATFORMMETHOD(platform_devmap_init,    allwinner_devmap_init),
 268         PLATFORMMETHOD(platform_cpu_reset,      allwinner_cpu_reset),
 269
 270 #ifdef SMP
 271         PLATFORMMETHOD(platform_mp_start_ap,    aw_mp_start_ap),
 272         PLATFORMMETHOD(platform_mp_setmaxid,    aw_mp_setmaxid),
 273 #endif
 274         PLATFORMMETHOD_END,
 275 };
 276 FDT_PLATFORM_DEF(h2_plus, "h2_plus", 0, "allwinner,sun8i-h2-plus", 200);
 277 #endif
 278
 279 #if defined(SOC_ALLWINNER_H3)
 280 static platform_method_t h3_methods[] = {
 281         PLATFORMMETHOD(platform_attach,         h3_attach),
 282         PLATFORMMETHOD(platform_devmap_init,    allwinner_devmap_init),
 283         PLATFORMMETHOD(platform_cpu_reset,      allwinner_cpu_reset),
 284
 285 #ifdef SMP
 286         PLATFORMMETHOD(platform_mp_start_ap,    aw_mp_start_ap),
 287         PLATFORMMETHOD(platform_mp_setmaxid,    aw_mp_setmaxid),
 288 #endif
 289         PLATFORMMETHOD_END,
 290 };
 291 FDT_PLATFORM_DEF(h3, "h3", 0, "allwinner,sun8i-h3", 200);
 292 #endif
 293
 294
 295
 296 u_int
 297 allwinner_soc_type(void)
 298 {
 299         return (soc_type);
 300 }
 301
 302 u_int
 303 allwinner_soc_family(void)
 304 {
 305         return (soc_family);
 306 }