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 "sysemu/blockdev.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 } 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 const AspeedBoardConfig aspeed_boards[] = { 86 [PALMETTO_BMC] = { 87 .soc_name = "ast2400-a1", 88 .hw_strap1 = PALMETTO_BMC_HW_STRAP1, 89 .fmc_model = "n25q256a", 90 .spi_model = "mx25l25635e", 91 .num_cs = 1, 92 }, 93 [AST2500_EVB] = { 94 .soc_name = "ast2500-a1", 95 .hw_strap1 = AST2500_EVB_HW_STRAP1, 96 .fmc_model = "n25q256a", 97 .spi_model = "mx25l25635e", 98 .num_cs = 1, 99 }, 100 [ROMULUS_BMC] = { 101 .soc_name = "ast2500-a1", 102 .hw_strap1 = ROMULUS_BMC_HW_STRAP1, 103 .fmc_model = "n25q256a", 104 .spi_model = "mx66l1g45g", 105 .num_cs = 2, 106 }, 107 }; 108 109 #define FIRMWARE_ADDR 0x0 110 111 static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size, 112 Error **errp) 113 { 114 BlockBackend *blk = blk_by_legacy_dinfo(dinfo); 115 uint8_t *storage; 116 117 if (rom_size > blk_getlength(blk)) { 118 rom_size = blk_getlength(blk); 119 } 120 121 storage = g_new0(uint8_t, rom_size); 122 if (blk_pread(blk, 0, storage, rom_size) < 0) { 123 error_setg(errp, "failed to read the initial flash content"); 124 return; 125 } 126 127 rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr); 128 g_free(storage); 129 } 130 131 static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype, 132 Error **errp) 133 { 134 int i ; 135 136 for (i = 0; i < s->num_cs; ++i) { 137 AspeedSMCFlash *fl = &s->flashes[i]; 138 DriveInfo *dinfo = drive_get_next(IF_MTD); 139 qemu_irq cs_line; 140 141 /* 142 * FIXME: check that we are not using a flash module exceeding 143 * the controller segment size 144 */ 145 fl->flash = ssi_create_slave_no_init(s->spi, flashtype); 146 if (dinfo) { 147 qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo), 148 errp); 149 } 150 qdev_init_nofail(fl->flash); 151 152 cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0); 153 sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line); 154 } 155 } 156 157 static void aspeed_board_init(MachineState *machine, 158 const AspeedBoardConfig *cfg) 159 { 160 AspeedBoardState *bmc; 161 AspeedSoCClass *sc; 162 DriveInfo *drive0 = drive_get(IF_MTD, 0, 0); 163 164 bmc = g_new0(AspeedBoardState, 1); 165 object_initialize(&bmc->soc, (sizeof(bmc->soc)), cfg->soc_name); 166 object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc), 167 &error_abort); 168 169 sc = ASPEED_SOC_GET_CLASS(&bmc->soc); 170 171 object_property_set_int(OBJECT(&bmc->soc), ram_size, "ram-size", 172 &error_abort); 173 object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1", 174 &error_abort); 175 object_property_set_int(OBJECT(&bmc->soc), cfg->num_cs, "num-cs", 176 &error_abort); 177 object_property_set_bool(OBJECT(&bmc->soc), true, "realized", 178 &error_abort); 179 180 /* 181 * Allocate RAM after the memory controller has checked the size 182 * was valid. If not, a default value is used. 183 */ 184 ram_size = object_property_get_int(OBJECT(&bmc->soc), "ram-size", 185 &error_abort); 186 187 memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size); 188 memory_region_add_subregion(get_system_memory(), sc->info->sdram_base, 189 &bmc->ram); 190 object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram), 191 &error_abort); 192 193 aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort); 194 aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort); 195 196 /* Install first FMC flash content as a boot rom. */ 197 if (drive0) { 198 AspeedSMCFlash *fl = &bmc->soc.fmc.flashes[0]; 199 MemoryRegion *boot_rom = g_new(MemoryRegion, 1); 200 201 /* 202 * create a ROM region using the default mapping window size of 203 * the flash module. 204 */ 205 memory_region_init_rom(boot_rom, OBJECT(bmc), "aspeed.boot_rom", 206 fl->size, &error_abort); 207 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR, 208 boot_rom); 209 write_boot_rom(drive0, FIRMWARE_ADDR, fl->size, &error_abort); 210 } 211 212 aspeed_board_binfo.kernel_filename = machine->kernel_filename; 213 aspeed_board_binfo.initrd_filename = machine->initrd_filename; 214 aspeed_board_binfo.kernel_cmdline = machine->kernel_cmdline; 215 aspeed_board_binfo.ram_size = ram_size; 216 aspeed_board_binfo.loader_start = sc->info->sdram_base; 217 218 arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo); 219 } 220 221 static void palmetto_bmc_init(MachineState *machine) 222 { 223 aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]); 224 } 225 226 static void palmetto_bmc_class_init(ObjectClass *oc, void *data) 227 { 228 MachineClass *mc = MACHINE_CLASS(oc); 229 230 mc->desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)"; 231 mc->init = palmetto_bmc_init; 232 mc->max_cpus = 1; 233 mc->no_sdcard = 1; 234 mc->no_floppy = 1; 235 mc->no_cdrom = 1; 236 mc->no_parallel = 1; 237 } 238 239 static const TypeInfo palmetto_bmc_type = { 240 .name = MACHINE_TYPE_NAME("palmetto-bmc"), 241 .parent = TYPE_MACHINE, 242 .class_init = palmetto_bmc_class_init, 243 }; 244 245 static void ast2500_evb_init(MachineState *machine) 246 { 247 aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]); 248 } 249 250 static void ast2500_evb_class_init(ObjectClass *oc, void *data) 251 { 252 MachineClass *mc = MACHINE_CLASS(oc); 253 254 mc->desc = "Aspeed AST2500 EVB (ARM1176)"; 255 mc->init = ast2500_evb_init; 256 mc->max_cpus = 1; 257 mc->no_sdcard = 1; 258 mc->no_floppy = 1; 259 mc->no_cdrom = 1; 260 mc->no_parallel = 1; 261 } 262 263 static const TypeInfo ast2500_evb_type = { 264 .name = MACHINE_TYPE_NAME("ast2500-evb"), 265 .parent = TYPE_MACHINE, 266 .class_init = ast2500_evb_class_init, 267 }; 268 269 static void romulus_bmc_init(MachineState *machine) 270 { 271 aspeed_board_init(machine, &aspeed_boards[ROMULUS_BMC]); 272 } 273 274 static void romulus_bmc_class_init(ObjectClass *oc, void *data) 275 { 276 MachineClass *mc = MACHINE_CLASS(oc); 277 278 mc->desc = "OpenPOWER Romulus BMC (ARM1176)"; 279 mc->init = romulus_bmc_init; 280 mc->max_cpus = 1; 281 mc->no_sdcard = 1; 282 mc->no_floppy = 1; 283 mc->no_cdrom = 1; 284 mc->no_parallel = 1; 285 } 286 287 static const TypeInfo romulus_bmc_type = { 288 .name = MACHINE_TYPE_NAME("romulus-bmc"), 289 .parent = TYPE_MACHINE, 290 .class_init = romulus_bmc_class_init, 291 }; 292 293 static void aspeed_machine_init(void) 294 { 295 type_register_static(&palmetto_bmc_type); 296 type_register_static(&ast2500_evb_type); 297 type_register_static(&romulus_bmc_type); 298 } 299 300 type_init(aspeed_machine_init) 301