Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/arm/allwinner/aw_machdep.c
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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 u_int 295 allwinner_soc_type(void) 296 { 297 return (soc_type); 298 } 299 300 u_int 301 allwinner_soc_family(void) 302 { 303 return (soc_family); 304 }
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