1 /* 2 * Machine definitions for boards featuring an NPCM7xx SoC. 3 * 4 * Copyright 2020 Google LLC 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * for more details. 15 */ 16 17 #include "qemu/osdep.h" 18 19 #include "exec/address-spaces.h" 20 #include "hw/arm/npcm7xx.h" 21 #include "hw/core/cpu.h" 22 #include "hw/i2c/smbus_eeprom.h" 23 #include "hw/loader.h" 24 #include "hw/qdev-core.h" 25 #include "hw/qdev-properties.h" 26 #include "qapi/error.h" 27 #include "qemu-common.h" 28 #include "qemu/datadir.h" 29 #include "qemu/units.h" 30 #include "sysemu/sysemu.h" 31 32 #define NPCM750_EVB_POWER_ON_STRAPS 0x00001ff7 33 #define QUANTA_GSJ_POWER_ON_STRAPS 0x00001fff 34 35 static const char npcm7xx_default_bootrom[] = "npcm7xx_bootrom.bin"; 36 37 static void npcm7xx_load_bootrom(MachineState *machine, NPCM7xxState *soc) 38 { 39 const char *bios_name = machine->firmware ?: npcm7xx_default_bootrom; 40 g_autofree char *filename = NULL; 41 int ret; 42 43 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 44 if (!filename) { 45 error_report("Could not find ROM image '%s'", bios_name); 46 if (!machine->kernel_filename) { 47 /* We can't boot without a bootrom or a kernel image. */ 48 exit(1); 49 } 50 return; 51 } 52 ret = load_image_mr(filename, &soc->irom); 53 if (ret < 0) { 54 error_report("Failed to load ROM image '%s'", filename); 55 exit(1); 56 } 57 } 58 59 static void npcm7xx_connect_flash(NPCM7xxFIUState *fiu, int cs_no, 60 const char *flash_type, DriveInfo *dinfo) 61 { 62 DeviceState *flash; 63 qemu_irq flash_cs; 64 65 flash = qdev_new(flash_type); 66 if (dinfo) { 67 qdev_prop_set_drive(flash, "drive", blk_by_legacy_dinfo(dinfo)); 68 } 69 qdev_realize_and_unref(flash, BUS(fiu->spi), &error_fatal); 70 71 flash_cs = qdev_get_gpio_in_named(flash, SSI_GPIO_CS, 0); 72 qdev_connect_gpio_out_named(DEVICE(fiu), "cs", cs_no, flash_cs); 73 } 74 75 static void npcm7xx_connect_dram(NPCM7xxState *soc, MemoryRegion *dram) 76 { 77 memory_region_add_subregion(get_system_memory(), NPCM7XX_DRAM_BA, dram); 78 79 object_property_set_link(OBJECT(soc), "dram-mr", OBJECT(dram), 80 &error_abort); 81 } 82 83 static NPCM7xxState *npcm7xx_create_soc(MachineState *machine, 84 uint32_t hw_straps) 85 { 86 NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_GET_CLASS(machine); 87 MachineClass *mc = MACHINE_CLASS(nmc); 88 Object *obj; 89 90 if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) { 91 error_report("This board can only be used with %s", 92 mc->default_cpu_type); 93 exit(1); 94 } 95 96 obj = object_new_with_props(nmc->soc_type, OBJECT(machine), "soc", 97 &error_abort, NULL); 98 object_property_set_uint(obj, "power-on-straps", hw_straps, &error_abort); 99 100 return NPCM7XX(obj); 101 } 102 103 static I2CBus *npcm7xx_i2c_get_bus(NPCM7xxState *soc, uint32_t num) 104 { 105 g_assert(num < ARRAY_SIZE(soc->smbus)); 106 return I2C_BUS(qdev_get_child_bus(DEVICE(&soc->smbus[num]), "i2c-bus")); 107 } 108 109 static void at24c_eeprom_init(NPCM7xxState *soc, int bus, uint8_t addr, 110 uint32_t rsize) 111 { 112 I2CBus *i2c_bus = npcm7xx_i2c_get_bus(soc, bus); 113 I2CSlave *i2c_dev = i2c_slave_new("at24c-eeprom", addr); 114 DeviceState *dev = DEVICE(i2c_dev); 115 116 qdev_prop_set_uint32(dev, "rom-size", rsize); 117 i2c_slave_realize_and_unref(i2c_dev, i2c_bus, &error_abort); 118 } 119 120 static void npcm7xx_init_pwm_splitter(NPCM7xxMachine *machine, 121 NPCM7xxState *soc, const int *fan_counts) 122 { 123 SplitIRQ *splitters = machine->fan_splitter; 124 125 /* 126 * PWM 0~3 belong to module 0 output 0~3. 127 * PWM 4~7 belong to module 1 output 0~3. 128 */ 129 for (int i = 0; i < NPCM7XX_NR_PWM_MODULES; ++i) { 130 for (int j = 0; j < NPCM7XX_PWM_PER_MODULE; ++j) { 131 int splitter_no = i * NPCM7XX_PWM_PER_MODULE + j; 132 DeviceState *splitter; 133 134 if (fan_counts[splitter_no] < 1) { 135 continue; 136 } 137 object_initialize_child(OBJECT(machine), "fan-splitter[*]", 138 &splitters[splitter_no], TYPE_SPLIT_IRQ); 139 splitter = DEVICE(&splitters[splitter_no]); 140 qdev_prop_set_uint16(splitter, "num-lines", 141 fan_counts[splitter_no]); 142 qdev_realize(splitter, NULL, &error_abort); 143 qdev_connect_gpio_out_named(DEVICE(&soc->pwm[i]), "duty-gpio-out", 144 j, qdev_get_gpio_in(splitter, 0)); 145 } 146 } 147 } 148 149 static void npcm7xx_connect_pwm_fan(NPCM7xxState *soc, SplitIRQ *splitter, 150 int fan_no, int output_no) 151 { 152 DeviceState *fan; 153 int fan_input; 154 qemu_irq fan_duty_gpio; 155 156 g_assert(fan_no >= 0 && fan_no <= NPCM7XX_MFT_MAX_FAN_INPUT); 157 /* 158 * Fan 0~1 belong to module 0 input 0~1. 159 * Fan 2~3 belong to module 1 input 0~1. 160 * ... 161 * Fan 14~15 belong to module 7 input 0~1. 162 * Fan 16~17 belong to module 0 input 2~3. 163 * Fan 18~19 belong to module 1 input 2~3. 164 */ 165 if (fan_no < 16) { 166 fan = DEVICE(&soc->mft[fan_no / 2]); 167 fan_input = fan_no % 2; 168 } else { 169 fan = DEVICE(&soc->mft[(fan_no - 16) / 2]); 170 fan_input = fan_no % 2 + 2; 171 } 172 173 /* Connect the Fan to PWM module */ 174 fan_duty_gpio = qdev_get_gpio_in_named(fan, "duty", fan_input); 175 qdev_connect_gpio_out(DEVICE(splitter), output_no, fan_duty_gpio); 176 } 177 178 static void npcm750_evb_i2c_init(NPCM7xxState *soc) 179 { 180 /* lm75 temperature sensor on SVB, tmp105 is compatible */ 181 i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 0), "tmp105", 0x48); 182 /* lm75 temperature sensor on EB, tmp105 is compatible */ 183 i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 1), "tmp105", 0x48); 184 /* tmp100 temperature sensor on EB, tmp105 is compatible */ 185 i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 2), "tmp105", 0x48); 186 /* tmp100 temperature sensor on SVB, tmp105 is compatible */ 187 i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 6), "tmp105", 0x48); 188 } 189 190 static void npcm750_evb_fan_init(NPCM7xxMachine *machine, NPCM7xxState *soc) 191 { 192 SplitIRQ *splitter = machine->fan_splitter; 193 static const int fan_counts[] = {2, 2, 2, 2, 2, 2, 2, 2}; 194 195 npcm7xx_init_pwm_splitter(machine, soc, fan_counts); 196 npcm7xx_connect_pwm_fan(soc, &splitter[0], 0x00, 0); 197 npcm7xx_connect_pwm_fan(soc, &splitter[0], 0x01, 1); 198 npcm7xx_connect_pwm_fan(soc, &splitter[1], 0x02, 0); 199 npcm7xx_connect_pwm_fan(soc, &splitter[1], 0x03, 1); 200 npcm7xx_connect_pwm_fan(soc, &splitter[2], 0x04, 0); 201 npcm7xx_connect_pwm_fan(soc, &splitter[2], 0x05, 1); 202 npcm7xx_connect_pwm_fan(soc, &splitter[3], 0x06, 0); 203 npcm7xx_connect_pwm_fan(soc, &splitter[3], 0x07, 1); 204 npcm7xx_connect_pwm_fan(soc, &splitter[4], 0x08, 0); 205 npcm7xx_connect_pwm_fan(soc, &splitter[4], 0x09, 1); 206 npcm7xx_connect_pwm_fan(soc, &splitter[5], 0x0a, 0); 207 npcm7xx_connect_pwm_fan(soc, &splitter[5], 0x0b, 1); 208 npcm7xx_connect_pwm_fan(soc, &splitter[6], 0x0c, 0); 209 npcm7xx_connect_pwm_fan(soc, &splitter[6], 0x0d, 1); 210 npcm7xx_connect_pwm_fan(soc, &splitter[7], 0x0e, 0); 211 npcm7xx_connect_pwm_fan(soc, &splitter[7], 0x0f, 1); 212 } 213 214 static void quanta_gsj_i2c_init(NPCM7xxState *soc) 215 { 216 /* GSJ machine have 4 max31725 temperature sensors, tmp105 is compatible. */ 217 i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 1), "tmp105", 0x5c); 218 i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 2), "tmp105", 0x5c); 219 i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 3), "tmp105", 0x5c); 220 i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 4), "tmp105", 0x5c); 221 222 at24c_eeprom_init(soc, 9, 0x55, 8192); 223 at24c_eeprom_init(soc, 10, 0x55, 8192); 224 225 /* TODO: Add additional i2c devices. */ 226 } 227 228 static void quanta_gsj_fan_init(NPCM7xxMachine *machine, NPCM7xxState *soc) 229 { 230 SplitIRQ *splitter = machine->fan_splitter; 231 static const int fan_counts[] = {2, 2, 2, 0, 0, 0, 0, 0}; 232 233 npcm7xx_init_pwm_splitter(machine, soc, fan_counts); 234 npcm7xx_connect_pwm_fan(soc, &splitter[0], 0x00, 0); 235 npcm7xx_connect_pwm_fan(soc, &splitter[0], 0x01, 1); 236 npcm7xx_connect_pwm_fan(soc, &splitter[1], 0x02, 0); 237 npcm7xx_connect_pwm_fan(soc, &splitter[1], 0x03, 1); 238 npcm7xx_connect_pwm_fan(soc, &splitter[2], 0x04, 0); 239 npcm7xx_connect_pwm_fan(soc, &splitter[2], 0x05, 1); 240 } 241 242 static void npcm750_evb_init(MachineState *machine) 243 { 244 NPCM7xxState *soc; 245 246 soc = npcm7xx_create_soc(machine, NPCM750_EVB_POWER_ON_STRAPS); 247 npcm7xx_connect_dram(soc, machine->ram); 248 qdev_realize(DEVICE(soc), NULL, &error_fatal); 249 250 npcm7xx_load_bootrom(machine, soc); 251 npcm7xx_connect_flash(&soc->fiu[0], 0, "w25q256", drive_get(IF_MTD, 0, 0)); 252 npcm750_evb_i2c_init(soc); 253 npcm750_evb_fan_init(NPCM7XX_MACHINE(machine), soc); 254 npcm7xx_load_kernel(machine, soc); 255 } 256 257 static void quanta_gsj_init(MachineState *machine) 258 { 259 NPCM7xxState *soc; 260 261 soc = npcm7xx_create_soc(machine, QUANTA_GSJ_POWER_ON_STRAPS); 262 npcm7xx_connect_dram(soc, machine->ram); 263 qdev_realize(DEVICE(soc), NULL, &error_fatal); 264 265 npcm7xx_load_bootrom(machine, soc); 266 npcm7xx_connect_flash(&soc->fiu[0], 0, "mx25l25635e", 267 drive_get(IF_MTD, 0, 0)); 268 quanta_gsj_i2c_init(soc); 269 quanta_gsj_fan_init(NPCM7XX_MACHINE(machine), soc); 270 npcm7xx_load_kernel(machine, soc); 271 } 272 273 static void npcm7xx_set_soc_type(NPCM7xxMachineClass *nmc, const char *type) 274 { 275 NPCM7xxClass *sc = NPCM7XX_CLASS(object_class_by_name(type)); 276 MachineClass *mc = MACHINE_CLASS(nmc); 277 278 nmc->soc_type = type; 279 mc->default_cpus = mc->min_cpus = mc->max_cpus = sc->num_cpus; 280 } 281 282 static void npcm7xx_machine_class_init(ObjectClass *oc, void *data) 283 { 284 MachineClass *mc = MACHINE_CLASS(oc); 285 286 mc->no_floppy = 1; 287 mc->no_cdrom = 1; 288 mc->no_parallel = 1; 289 mc->default_ram_id = "ram"; 290 mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9"); 291 } 292 293 /* 294 * Schematics: 295 * https://github.com/Nuvoton-Israel/nuvoton-info/blob/master/npcm7xx-poleg/evaluation-board/board_deliverables/NPCM750x_EB_ver.A1.1_COMPLETE.pdf 296 */ 297 static void npcm750_evb_machine_class_init(ObjectClass *oc, void *data) 298 { 299 NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_CLASS(oc); 300 MachineClass *mc = MACHINE_CLASS(oc); 301 302 npcm7xx_set_soc_type(nmc, TYPE_NPCM750); 303 304 mc->desc = "Nuvoton NPCM750 Evaluation Board (Cortex A9)"; 305 mc->init = npcm750_evb_init; 306 mc->default_ram_size = 512 * MiB; 307 }; 308 309 static void gsj_machine_class_init(ObjectClass *oc, void *data) 310 { 311 NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_CLASS(oc); 312 MachineClass *mc = MACHINE_CLASS(oc); 313 314 npcm7xx_set_soc_type(nmc, TYPE_NPCM730); 315 316 mc->desc = "Quanta GSJ (Cortex A9)"; 317 mc->init = quanta_gsj_init; 318 mc->default_ram_size = 512 * MiB; 319 }; 320 321 static const TypeInfo npcm7xx_machine_types[] = { 322 { 323 .name = TYPE_NPCM7XX_MACHINE, 324 .parent = TYPE_MACHINE, 325 .instance_size = sizeof(NPCM7xxMachine), 326 .class_size = sizeof(NPCM7xxMachineClass), 327 .class_init = npcm7xx_machine_class_init, 328 .abstract = true, 329 }, { 330 .name = MACHINE_TYPE_NAME("npcm750-evb"), 331 .parent = TYPE_NPCM7XX_MACHINE, 332 .class_init = npcm750_evb_machine_class_init, 333 }, { 334 .name = MACHINE_TYPE_NAME("quanta-gsj"), 335 .parent = TYPE_NPCM7XX_MACHINE, 336 .class_init = gsj_machine_class_init, 337 }, 338 }; 339 340 DEFINE_TYPES(npcm7xx_machine_types) 341