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