1 /* 2 * OpenPOWER Palmetto BMC 3 * 4 * Andrew Jeffery <andrew@aj.id.au> 5 * 6 * Copyright 2016 IBM Corp. 7 * 8 * This code is licensed under the GPL version 2 or later. See 9 * the COPYING file in the top-level directory. 10 */ 11 12 #include "qemu/osdep.h" 13 #include "qapi/error.h" 14 #include "qemu-common.h" 15 #include "cpu.h" 16 #include "exec/address-spaces.h" 17 #include "hw/arm/arm.h" 18 #include "hw/arm/aspeed_soc.h" 19 #include "hw/boards.h" 20 #include "hw/i2c/smbus.h" 21 #include "qemu/log.h" 22 #include "sysemu/block-backend.h" 23 #include "hw/loader.h" 24 #include "qemu/error-report.h" 25 26 static struct arm_boot_info aspeed_board_binfo = { 27 .board_id = -1, /* device-tree-only board */ 28 .nb_cpus = 1, 29 }; 30 31 typedef struct AspeedBoardState { 32 AspeedSoCState soc; 33 MemoryRegion ram; 34 } AspeedBoardState; 35 36 typedef struct AspeedBoardConfig { 37 const char *soc_name; 38 uint32_t hw_strap1; 39 const char *fmc_model; 40 const char *spi_model; 41 uint32_t num_cs; 42 void (*i2c_init)(AspeedBoardState *bmc); 43 } AspeedBoardConfig; 44 45 enum { 46 PALMETTO_BMC, 47 AST2500_EVB, 48 ROMULUS_BMC, 49 WITHERSPOON_BMC, 50 }; 51 52 /* Palmetto hardware value: 0x120CE416 */ 53 #define PALMETTO_BMC_HW_STRAP1 ( \ 54 SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \ 55 SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \ 56 SCU_AST2400_HW_STRAP_ACPI_DIS | \ 57 SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \ 58 SCU_HW_STRAP_VGA_CLASS_CODE | \ 59 SCU_HW_STRAP_LPC_RESET_PIN | \ 60 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \ 61 SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \ 62 SCU_HW_STRAP_SPI_WIDTH | \ 63 SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \ 64 SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT)) 65 66 /* AST2500 evb hardware value: 0xF100C2E6 */ 67 #define AST2500_EVB_HW_STRAP1 (( \ 68 AST2500_HW_STRAP1_DEFAULTS | \ 69 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \ 70 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \ 71 SCU_AST2500_HW_STRAP_UART_DEBUG | \ 72 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \ 73 SCU_HW_STRAP_MAC1_RGMII | \ 74 SCU_HW_STRAP_MAC0_RGMII) & \ 75 ~SCU_HW_STRAP_2ND_BOOT_WDT) 76 77 /* Romulus hardware value: 0xF10AD206 */ 78 #define ROMULUS_BMC_HW_STRAP1 ( \ 79 AST2500_HW_STRAP1_DEFAULTS | \ 80 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \ 81 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \ 82 SCU_AST2500_HW_STRAP_UART_DEBUG | \ 83 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \ 84 SCU_AST2500_HW_STRAP_ACPI_ENABLE | \ 85 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER)) 86 87 /* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */ 88 #define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1 89 90 static void palmetto_bmc_i2c_init(AspeedBoardState *bmc); 91 static void ast2500_evb_i2c_init(AspeedBoardState *bmc); 92 static void romulus_bmc_i2c_init(AspeedBoardState *bmc); 93 static void witherspoon_bmc_i2c_init(AspeedBoardState *bmc); 94 95 static const AspeedBoardConfig aspeed_boards[] = { 96 [PALMETTO_BMC] = { 97 .soc_name = "ast2400-a1", 98 .hw_strap1 = PALMETTO_BMC_HW_STRAP1, 99 .fmc_model = "n25q256a", 100 .spi_model = "mx25l25635e", 101 .num_cs = 1, 102 .i2c_init = palmetto_bmc_i2c_init, 103 }, 104 [AST2500_EVB] = { 105 .soc_name = "ast2500-a1", 106 .hw_strap1 = AST2500_EVB_HW_STRAP1, 107 .fmc_model = "n25q256a", 108 .spi_model = "mx25l25635e", 109 .num_cs = 1, 110 .i2c_init = ast2500_evb_i2c_init, 111 }, 112 [ROMULUS_BMC] = { 113 .soc_name = "ast2500-a1", 114 .hw_strap1 = ROMULUS_BMC_HW_STRAP1, 115 .fmc_model = "n25q256a", 116 .spi_model = "mx66l1g45g", 117 .num_cs = 2, 118 .i2c_init = romulus_bmc_i2c_init, 119 }, 120 [WITHERSPOON_BMC] = { 121 .soc_name = "ast2500-a1", 122 .hw_strap1 = WITHERSPOON_BMC_HW_STRAP1, 123 .fmc_model = "mx25l25635e", 124 .spi_model = "mx66l1g45g", 125 .num_cs = 2, 126 .i2c_init = witherspoon_bmc_i2c_init, 127 }, 128 }; 129 130 #define FIRMWARE_ADDR 0x0 131 132 static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size, 133 Error **errp) 134 { 135 BlockBackend *blk = blk_by_legacy_dinfo(dinfo); 136 uint8_t *storage; 137 int64_t size; 138 139 /* The block backend size should have already been 'validated' by 140 * the creation of the m25p80 object. 141 */ 142 size = blk_getlength(blk); 143 if (size <= 0) { 144 error_setg(errp, "failed to get flash size"); 145 return; 146 } 147 148 if (rom_size > size) { 149 rom_size = size; 150 } 151 152 storage = g_new0(uint8_t, rom_size); 153 if (blk_pread(blk, 0, storage, rom_size) < 0) { 154 error_setg(errp, "failed to read the initial flash content"); 155 return; 156 } 157 158 rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr); 159 g_free(storage); 160 } 161 162 static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype, 163 Error **errp) 164 { 165 int i ; 166 167 for (i = 0; i < s->num_cs; ++i) { 168 AspeedSMCFlash *fl = &s->flashes[i]; 169 DriveInfo *dinfo = drive_get_next(IF_MTD); 170 qemu_irq cs_line; 171 172 fl->flash = ssi_create_slave_no_init(s->spi, flashtype); 173 if (dinfo) { 174 qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo), 175 errp); 176 } 177 qdev_init_nofail(fl->flash); 178 179 cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0); 180 sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line); 181 } 182 } 183 184 static void aspeed_board_init(MachineState *machine, 185 const AspeedBoardConfig *cfg) 186 { 187 AspeedBoardState *bmc; 188 AspeedSoCClass *sc; 189 DriveInfo *drive0 = drive_get(IF_MTD, 0, 0); 190 191 bmc = g_new0(AspeedBoardState, 1); 192 object_initialize(&bmc->soc, (sizeof(bmc->soc)), cfg->soc_name); 193 object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc), 194 &error_abort); 195 196 sc = ASPEED_SOC_GET_CLASS(&bmc->soc); 197 198 object_property_set_uint(OBJECT(&bmc->soc), ram_size, "ram-size", 199 &error_abort); 200 object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1", 201 &error_abort); 202 object_property_set_int(OBJECT(&bmc->soc), cfg->num_cs, "num-cs", 203 &error_abort); 204 if (machine->kernel_filename) { 205 /* 206 * When booting with a -kernel command line there is no u-boot 207 * that runs to unlock the SCU. In this case set the default to 208 * be unlocked as the kernel expects 209 */ 210 object_property_set_int(OBJECT(&bmc->soc), ASPEED_SCU_PROT_KEY, 211 "hw-prot-key", &error_abort); 212 } 213 object_property_set_bool(OBJECT(&bmc->soc), true, "realized", 214 &error_abort); 215 216 /* 217 * Allocate RAM after the memory controller has checked the size 218 * was valid. If not, a default value is used. 219 */ 220 ram_size = object_property_get_uint(OBJECT(&bmc->soc), "ram-size", 221 &error_abort); 222 223 memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size); 224 memory_region_add_subregion(get_system_memory(), sc->info->sdram_base, 225 &bmc->ram); 226 object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram), 227 &error_abort); 228 229 aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort); 230 aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort); 231 232 /* Install first FMC flash content as a boot rom. */ 233 if (drive0) { 234 AspeedSMCFlash *fl = &bmc->soc.fmc.flashes[0]; 235 MemoryRegion *boot_rom = g_new(MemoryRegion, 1); 236 237 /* 238 * create a ROM region using the default mapping window size of 239 * the flash module. The window size is 64MB for the AST2400 240 * SoC and 128MB for the AST2500 SoC, which is twice as big as 241 * needed by the flash modules of the Aspeed machines. 242 */ 243 memory_region_init_rom(boot_rom, OBJECT(bmc), "aspeed.boot_rom", 244 fl->size, &error_abort); 245 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR, 246 boot_rom); 247 write_boot_rom(drive0, FIRMWARE_ADDR, fl->size, &error_abort); 248 } 249 250 aspeed_board_binfo.kernel_filename = machine->kernel_filename; 251 aspeed_board_binfo.initrd_filename = machine->initrd_filename; 252 aspeed_board_binfo.kernel_cmdline = machine->kernel_cmdline; 253 aspeed_board_binfo.ram_size = ram_size; 254 aspeed_board_binfo.loader_start = sc->info->sdram_base; 255 256 if (cfg->i2c_init) { 257 cfg->i2c_init(bmc); 258 } 259 260 arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo); 261 } 262 263 static void palmetto_bmc_i2c_init(AspeedBoardState *bmc) 264 { 265 AspeedSoCState *soc = &bmc->soc; 266 DeviceState *dev; 267 uint8_t *eeprom_buf = g_malloc0(32 * 1024); 268 269 /* The palmetto platform expects a ds3231 RTC but a ds1338 is 270 * enough to provide basic RTC features. Alarms will be missing */ 271 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), "ds1338", 0x68); 272 273 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), 0x50, 274 eeprom_buf); 275 276 /* add a TMP423 temperature sensor */ 277 dev = i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2), 278 "tmp423", 0x4c); 279 object_property_set_int(OBJECT(dev), 31000, "temperature0", &error_abort); 280 object_property_set_int(OBJECT(dev), 28000, "temperature1", &error_abort); 281 object_property_set_int(OBJECT(dev), 20000, "temperature2", &error_abort); 282 object_property_set_int(OBJECT(dev), 110000, "temperature3", &error_abort); 283 } 284 285 static void palmetto_bmc_init(MachineState *machine) 286 { 287 aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]); 288 } 289 290 static void palmetto_bmc_class_init(ObjectClass *oc, void *data) 291 { 292 MachineClass *mc = MACHINE_CLASS(oc); 293 294 mc->desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)"; 295 mc->init = palmetto_bmc_init; 296 mc->max_cpus = 1; 297 mc->no_sdcard = 1; 298 mc->no_floppy = 1; 299 mc->no_cdrom = 1; 300 mc->no_parallel = 1; 301 } 302 303 static const TypeInfo palmetto_bmc_type = { 304 .name = MACHINE_TYPE_NAME("palmetto-bmc"), 305 .parent = TYPE_MACHINE, 306 .class_init = palmetto_bmc_class_init, 307 }; 308 309 static void ast2500_evb_i2c_init(AspeedBoardState *bmc) 310 { 311 AspeedSoCState *soc = &bmc->soc; 312 uint8_t *eeprom_buf = g_malloc0(8 * 1024); 313 314 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), 0x50, 315 eeprom_buf); 316 317 /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */ 318 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "tmp105", 0x4d); 319 320 /* The AST2500 EVB does not have an RTC. Let's pretend that one is 321 * plugged on the I2C bus header */ 322 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32); 323 } 324 325 static void ast2500_evb_init(MachineState *machine) 326 { 327 aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]); 328 } 329 330 static void ast2500_evb_class_init(ObjectClass *oc, void *data) 331 { 332 MachineClass *mc = MACHINE_CLASS(oc); 333 334 mc->desc = "Aspeed AST2500 EVB (ARM1176)"; 335 mc->init = ast2500_evb_init; 336 mc->max_cpus = 1; 337 mc->no_sdcard = 1; 338 mc->no_floppy = 1; 339 mc->no_cdrom = 1; 340 mc->no_parallel = 1; 341 } 342 343 static const TypeInfo ast2500_evb_type = { 344 .name = MACHINE_TYPE_NAME("ast2500-evb"), 345 .parent = TYPE_MACHINE, 346 .class_init = ast2500_evb_class_init, 347 }; 348 349 static void romulus_bmc_i2c_init(AspeedBoardState *bmc) 350 { 351 AspeedSoCState *soc = &bmc->soc; 352 353 /* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is 354 * good enough */ 355 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32); 356 } 357 358 static void romulus_bmc_init(MachineState *machine) 359 { 360 aspeed_board_init(machine, &aspeed_boards[ROMULUS_BMC]); 361 } 362 363 static void romulus_bmc_class_init(ObjectClass *oc, void *data) 364 { 365 MachineClass *mc = MACHINE_CLASS(oc); 366 367 mc->desc = "OpenPOWER Romulus BMC (ARM1176)"; 368 mc->init = romulus_bmc_init; 369 mc->max_cpus = 1; 370 mc->no_sdcard = 1; 371 mc->no_floppy = 1; 372 mc->no_cdrom = 1; 373 mc->no_parallel = 1; 374 } 375 376 static const TypeInfo romulus_bmc_type = { 377 .name = MACHINE_TYPE_NAME("romulus-bmc"), 378 .parent = TYPE_MACHINE, 379 .class_init = romulus_bmc_class_init, 380 }; 381 382 static void witherspoon_bmc_i2c_init(AspeedBoardState *bmc) 383 { 384 AspeedSoCState *soc = &bmc->soc; 385 uint8_t *eeprom_buf = g_malloc0(8 * 1024); 386 387 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), "pca9552", 0x60); 388 389 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "tmp423", 0x4c); 390 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 5), "tmp423", 0x4c); 391 392 /* The Witherspoon expects a TMP275 but a TMP105 is compatible */ 393 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), "tmp105", 0x4a); 394 395 /* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is 396 * good enough */ 397 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32); 398 399 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), 0x51, 400 eeprom_buf); 401 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "pca9552", 402 0x60); 403 } 404 405 static void witherspoon_bmc_init(MachineState *machine) 406 { 407 aspeed_board_init(machine, &aspeed_boards[WITHERSPOON_BMC]); 408 } 409 410 static void witherspoon_bmc_class_init(ObjectClass *oc, void *data) 411 { 412 MachineClass *mc = MACHINE_CLASS(oc); 413 414 mc->desc = "OpenPOWER Witherspoon BMC (ARM1176)"; 415 mc->init = witherspoon_bmc_init; 416 mc->max_cpus = 1; 417 mc->no_sdcard = 1; 418 mc->no_floppy = 1; 419 mc->no_cdrom = 1; 420 mc->no_parallel = 1; 421 } 422 423 static const TypeInfo witherspoon_bmc_type = { 424 .name = MACHINE_TYPE_NAME("witherspoon-bmc"), 425 .parent = TYPE_MACHINE, 426 .class_init = witherspoon_bmc_class_init, 427 }; 428 429 static void aspeed_machine_init(void) 430 { 431 type_register_static(&palmetto_bmc_type); 432 type_register_static(&ast2500_evb_type); 433 type_register_static(&romulus_bmc_type); 434 type_register_static(&witherspoon_bmc_type); 435 } 436 437 type_init(aspeed_machine_init) 438