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 int64_t size; 117 118 /* The block backend size should have already been 'validated' by 119 * the creation of the m25p80 object. 120 */ 121 size = blk_getlength(blk); 122 if (size <= 0) { 123 error_setg(errp, "failed to get flash size"); 124 return; 125 } 126 127 if (rom_size > size) { 128 rom_size = size; 129 } 130 131 storage = g_new0(uint8_t, rom_size); 132 if (blk_pread(blk, 0, storage, rom_size) < 0) { 133 error_setg(errp, "failed to read the initial flash content"); 134 return; 135 } 136 137 rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr); 138 g_free(storage); 139 } 140 141 static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype, 142 Error **errp) 143 { 144 int i ; 145 146 for (i = 0; i < s->num_cs; ++i) { 147 AspeedSMCFlash *fl = &s->flashes[i]; 148 DriveInfo *dinfo = drive_get_next(IF_MTD); 149 qemu_irq cs_line; 150 151 fl->flash = ssi_create_slave_no_init(s->spi, flashtype); 152 if (dinfo) { 153 qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo), 154 errp); 155 } 156 qdev_init_nofail(fl->flash); 157 158 cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0); 159 sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line); 160 } 161 } 162 163 static void aspeed_board_init(MachineState *machine, 164 const AspeedBoardConfig *cfg) 165 { 166 AspeedBoardState *bmc; 167 AspeedSoCClass *sc; 168 DriveInfo *drive0 = drive_get(IF_MTD, 0, 0); 169 170 bmc = g_new0(AspeedBoardState, 1); 171 object_initialize(&bmc->soc, (sizeof(bmc->soc)), cfg->soc_name); 172 object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc), 173 &error_abort); 174 175 sc = ASPEED_SOC_GET_CLASS(&bmc->soc); 176 177 object_property_set_int(OBJECT(&bmc->soc), ram_size, "ram-size", 178 &error_abort); 179 object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1", 180 &error_abort); 181 object_property_set_int(OBJECT(&bmc->soc), cfg->num_cs, "num-cs", 182 &error_abort); 183 object_property_set_bool(OBJECT(&bmc->soc), true, "realized", 184 &error_abort); 185 186 /* 187 * Allocate RAM after the memory controller has checked the size 188 * was valid. If not, a default value is used. 189 */ 190 ram_size = object_property_get_int(OBJECT(&bmc->soc), "ram-size", 191 &error_abort); 192 193 memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size); 194 memory_region_add_subregion(get_system_memory(), sc->info->sdram_base, 195 &bmc->ram); 196 object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram), 197 &error_abort); 198 199 aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort); 200 aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort); 201 202 /* Install first FMC flash content as a boot rom. */ 203 if (drive0) { 204 AspeedSMCFlash *fl = &bmc->soc.fmc.flashes[0]; 205 MemoryRegion *boot_rom = g_new(MemoryRegion, 1); 206 207 /* 208 * create a ROM region using the default mapping window size of 209 * the flash module. The window size is 64MB for the AST2400 210 * SoC and 128MB for the AST2500 SoC, which is twice as big as 211 * needed by the flash modules of the Aspeed machines. 212 */ 213 memory_region_init_rom(boot_rom, OBJECT(bmc), "aspeed.boot_rom", 214 fl->size, &error_abort); 215 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR, 216 boot_rom); 217 write_boot_rom(drive0, FIRMWARE_ADDR, fl->size, &error_abort); 218 } 219 220 aspeed_board_binfo.kernel_filename = machine->kernel_filename; 221 aspeed_board_binfo.initrd_filename = machine->initrd_filename; 222 aspeed_board_binfo.kernel_cmdline = machine->kernel_cmdline; 223 aspeed_board_binfo.ram_size = ram_size; 224 aspeed_board_binfo.loader_start = sc->info->sdram_base; 225 226 arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo); 227 } 228 229 static void palmetto_bmc_init(MachineState *machine) 230 { 231 aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]); 232 } 233 234 static void palmetto_bmc_class_init(ObjectClass *oc, void *data) 235 { 236 MachineClass *mc = MACHINE_CLASS(oc); 237 238 mc->desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)"; 239 mc->init = palmetto_bmc_init; 240 mc->max_cpus = 1; 241 mc->no_sdcard = 1; 242 mc->no_floppy = 1; 243 mc->no_cdrom = 1; 244 mc->no_parallel = 1; 245 } 246 247 static const TypeInfo palmetto_bmc_type = { 248 .name = MACHINE_TYPE_NAME("palmetto-bmc"), 249 .parent = TYPE_MACHINE, 250 .class_init = palmetto_bmc_class_init, 251 }; 252 253 static void ast2500_evb_init(MachineState *machine) 254 { 255 aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]); 256 } 257 258 static void ast2500_evb_class_init(ObjectClass *oc, void *data) 259 { 260 MachineClass *mc = MACHINE_CLASS(oc); 261 262 mc->desc = "Aspeed AST2500 EVB (ARM1176)"; 263 mc->init = ast2500_evb_init; 264 mc->max_cpus = 1; 265 mc->no_sdcard = 1; 266 mc->no_floppy = 1; 267 mc->no_cdrom = 1; 268 mc->no_parallel = 1; 269 } 270 271 static const TypeInfo ast2500_evb_type = { 272 .name = MACHINE_TYPE_NAME("ast2500-evb"), 273 .parent = TYPE_MACHINE, 274 .class_init = ast2500_evb_class_init, 275 }; 276 277 static void romulus_bmc_init(MachineState *machine) 278 { 279 aspeed_board_init(machine, &aspeed_boards[ROMULUS_BMC]); 280 } 281 282 static void romulus_bmc_class_init(ObjectClass *oc, void *data) 283 { 284 MachineClass *mc = MACHINE_CLASS(oc); 285 286 mc->desc = "OpenPOWER Romulus BMC (ARM1176)"; 287 mc->init = romulus_bmc_init; 288 mc->max_cpus = 1; 289 mc->no_sdcard = 1; 290 mc->no_floppy = 1; 291 mc->no_cdrom = 1; 292 mc->no_parallel = 1; 293 } 294 295 static const TypeInfo romulus_bmc_type = { 296 .name = MACHINE_TYPE_NAME("romulus-bmc"), 297 .parent = TYPE_MACHINE, 298 .class_init = romulus_bmc_class_init, 299 }; 300 301 static void aspeed_machine_init(void) 302 { 303 type_register_static(&palmetto_bmc_type); 304 type_register_static(&ast2500_evb_type); 305 type_register_static(&romulus_bmc_type); 306 } 307 308 type_init(aspeed_machine_init) 309