| /* |
| * OpenPOWER Palmetto BMC |
| * |
| * Andrew Jeffery <andrew@aj.id.au> |
| * |
| * Copyright 2016 IBM Corp. |
| * |
| * This code is licensed under the GPL version 2 or later. See |
| * the COPYING file in the top-level directory. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qapi/error.h" |
| #include "cpu.h" |
| #include "exec/address-spaces.h" |
| #include "hw/arm/boot.h" |
| #include "hw/arm/aspeed.h" |
| #include "hw/arm/aspeed_soc.h" |
| #include "hw/boards.h" |
| #include "hw/i2c/smbus_eeprom.h" |
| #include "hw/misc/pca9552.h" |
| #include "hw/misc/tmp105.h" |
| #include "qemu/log.h" |
| #include "sysemu/block-backend.h" |
| #include "hw/loader.h" |
| #include "qemu/error-report.h" |
| #include "qemu/units.h" |
| |
| static struct arm_boot_info aspeed_board_binfo = { |
| .board_id = -1, /* device-tree-only board */ |
| .nb_cpus = 1, |
| }; |
| |
| struct AspeedBoardState { |
| AspeedSoCState soc; |
| MemoryRegion ram; |
| MemoryRegion max_ram; |
| }; |
| |
| /* Palmetto hardware value: 0x120CE416 */ |
| #define PALMETTO_BMC_HW_STRAP1 ( \ |
| SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \ |
| SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \ |
| SCU_AST2400_HW_STRAP_ACPI_DIS | \ |
| SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \ |
| SCU_HW_STRAP_VGA_CLASS_CODE | \ |
| SCU_HW_STRAP_LPC_RESET_PIN | \ |
| SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \ |
| SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \ |
| SCU_HW_STRAP_SPI_WIDTH | \ |
| SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \ |
| SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT)) |
| |
| /* AST2500 evb hardware value: 0xF100C2E6 */ |
| #define AST2500_EVB_HW_STRAP1 (( \ |
| AST2500_HW_STRAP1_DEFAULTS | \ |
| SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \ |
| SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \ |
| SCU_AST2500_HW_STRAP_UART_DEBUG | \ |
| SCU_AST2500_HW_STRAP_DDR4_ENABLE | \ |
| SCU_HW_STRAP_MAC1_RGMII | \ |
| SCU_HW_STRAP_MAC0_RGMII) & \ |
| ~SCU_HW_STRAP_2ND_BOOT_WDT) |
| |
| /* Romulus hardware value: 0xF10AD206 */ |
| #define ROMULUS_BMC_HW_STRAP1 ( \ |
| AST2500_HW_STRAP1_DEFAULTS | \ |
| SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \ |
| SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \ |
| SCU_AST2500_HW_STRAP_UART_DEBUG | \ |
| SCU_AST2500_HW_STRAP_DDR4_ENABLE | \ |
| SCU_AST2500_HW_STRAP_ACPI_ENABLE | \ |
| SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER)) |
| |
| /* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */ |
| #define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1 |
| |
| /* |
| * The max ram region is for firmwares that scan the address space |
| * with load/store to guess how much RAM the SoC has. |
| */ |
| static uint64_t max_ram_read(void *opaque, hwaddr offset, unsigned size) |
| { |
| return 0; |
| } |
| |
| static void max_ram_write(void *opaque, hwaddr offset, uint64_t value, |
| unsigned size) |
| { |
| /* Discard writes */ |
| } |
| |
| static const MemoryRegionOps max_ram_ops = { |
| .read = max_ram_read, |
| .write = max_ram_write, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| }; |
| |
| #define FIRMWARE_ADDR 0x0 |
| |
| static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size, |
| Error **errp) |
| { |
| BlockBackend *blk = blk_by_legacy_dinfo(dinfo); |
| uint8_t *storage; |
| int64_t size; |
| |
| /* The block backend size should have already been 'validated' by |
| * the creation of the m25p80 object. |
| */ |
| size = blk_getlength(blk); |
| if (size <= 0) { |
| error_setg(errp, "failed to get flash size"); |
| return; |
| } |
| |
| if (rom_size > size) { |
| rom_size = size; |
| } |
| |
| storage = g_new0(uint8_t, rom_size); |
| if (blk_pread(blk, 0, storage, rom_size) < 0) { |
| error_setg(errp, "failed to read the initial flash content"); |
| return; |
| } |
| |
| rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr); |
| g_free(storage); |
| } |
| |
| static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype, |
| Error **errp) |
| { |
| int i ; |
| |
| for (i = 0; i < s->num_cs; ++i) { |
| AspeedSMCFlash *fl = &s->flashes[i]; |
| DriveInfo *dinfo = drive_get_next(IF_MTD); |
| qemu_irq cs_line; |
| |
| fl->flash = ssi_create_slave_no_init(s->spi, flashtype); |
| if (dinfo) { |
| qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo), |
| errp); |
| } |
| qdev_init_nofail(fl->flash); |
| |
| cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0); |
| sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line); |
| } |
| } |
| |
| static void aspeed_board_init(MachineState *machine, |
| const AspeedBoardConfig *cfg) |
| { |
| AspeedBoardState *bmc; |
| AspeedSoCClass *sc; |
| DriveInfo *drive0 = drive_get(IF_MTD, 0, 0); |
| ram_addr_t max_ram_size; |
| |
| bmc = g_new0(AspeedBoardState, 1); |
| object_initialize_child(OBJECT(machine), "soc", &bmc->soc, |
| (sizeof(bmc->soc)), cfg->soc_name, &error_abort, |
| NULL); |
| |
| sc = ASPEED_SOC_GET_CLASS(&bmc->soc); |
| |
| object_property_set_uint(OBJECT(&bmc->soc), ram_size, "ram-size", |
| &error_abort); |
| object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1", |
| &error_abort); |
| object_property_set_int(OBJECT(&bmc->soc), cfg->num_cs, "num-cs", |
| &error_abort); |
| if (machine->kernel_filename) { |
| /* |
| * When booting with a -kernel command line there is no u-boot |
| * that runs to unlock the SCU. In this case set the default to |
| * be unlocked as the kernel expects |
| */ |
| object_property_set_int(OBJECT(&bmc->soc), ASPEED_SCU_PROT_KEY, |
| "hw-prot-key", &error_abort); |
| } |
| object_property_set_bool(OBJECT(&bmc->soc), true, "realized", |
| &error_abort); |
| |
| /* |
| * Allocate RAM after the memory controller has checked the size |
| * was valid. If not, a default value is used. |
| */ |
| ram_size = object_property_get_uint(OBJECT(&bmc->soc), "ram-size", |
| &error_abort); |
| |
| memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size); |
| memory_region_add_subregion(get_system_memory(), sc->info->sdram_base, |
| &bmc->ram); |
| object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram), |
| &error_abort); |
| |
| max_ram_size = object_property_get_uint(OBJECT(&bmc->soc), "max-ram-size", |
| &error_abort); |
| memory_region_init_io(&bmc->max_ram, NULL, &max_ram_ops, NULL, |
| "max_ram", max_ram_size - ram_size); |
| memory_region_add_subregion(get_system_memory(), |
| sc->info->sdram_base + ram_size, |
| &bmc->max_ram); |
| |
| aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort); |
| aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort); |
| |
| /* Install first FMC flash content as a boot rom. */ |
| if (drive0) { |
| AspeedSMCFlash *fl = &bmc->soc.fmc.flashes[0]; |
| MemoryRegion *boot_rom = g_new(MemoryRegion, 1); |
| |
| /* |
| * create a ROM region using the default mapping window size of |
| * the flash module. The window size is 64MB for the AST2400 |
| * SoC and 128MB for the AST2500 SoC, which is twice as big as |
| * needed by the flash modules of the Aspeed machines. |
| */ |
| memory_region_init_rom(boot_rom, OBJECT(bmc), "aspeed.boot_rom", |
| fl->size, &error_abort); |
| memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR, |
| boot_rom); |
| write_boot_rom(drive0, FIRMWARE_ADDR, fl->size, &error_abort); |
| } |
| |
| aspeed_board_binfo.kernel_filename = machine->kernel_filename; |
| aspeed_board_binfo.initrd_filename = machine->initrd_filename; |
| aspeed_board_binfo.kernel_cmdline = machine->kernel_cmdline; |
| aspeed_board_binfo.ram_size = ram_size; |
| aspeed_board_binfo.loader_start = sc->info->sdram_base; |
| |
| if (cfg->i2c_init) { |
| cfg->i2c_init(bmc); |
| } |
| |
| arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo); |
| } |
| |
| static void palmetto_bmc_i2c_init(AspeedBoardState *bmc) |
| { |
| AspeedSoCState *soc = &bmc->soc; |
| DeviceState *dev; |
| uint8_t *eeprom_buf = g_malloc0(32 * 1024); |
| |
| /* The palmetto platform expects a ds3231 RTC but a ds1338 is |
| * enough to provide basic RTC features. Alarms will be missing */ |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), "ds1338", 0x68); |
| |
| smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), 0x50, |
| eeprom_buf); |
| |
| /* add a TMP423 temperature sensor */ |
| dev = i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2), |
| "tmp423", 0x4c); |
| object_property_set_int(OBJECT(dev), 31000, "temperature0", &error_abort); |
| object_property_set_int(OBJECT(dev), 28000, "temperature1", &error_abort); |
| object_property_set_int(OBJECT(dev), 20000, "temperature2", &error_abort); |
| object_property_set_int(OBJECT(dev), 110000, "temperature3", &error_abort); |
| } |
| |
| static void ast2500_evb_i2c_init(AspeedBoardState *bmc) |
| { |
| AspeedSoCState *soc = &bmc->soc; |
| uint8_t *eeprom_buf = g_malloc0(8 * 1024); |
| |
| smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), 0x50, |
| eeprom_buf); |
| |
| /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */ |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), |
| TYPE_TMP105, 0x4d); |
| |
| /* The AST2500 EVB does not have an RTC. Let's pretend that one is |
| * plugged on the I2C bus header */ |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32); |
| } |
| |
| static void romulus_bmc_i2c_init(AspeedBoardState *bmc) |
| { |
| AspeedSoCState *soc = &bmc->soc; |
| |
| /* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is |
| * good enough */ |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32); |
| } |
| |
| static void witherspoon_bmc_i2c_init(AspeedBoardState *bmc) |
| { |
| AspeedSoCState *soc = &bmc->soc; |
| uint8_t *eeprom_buf = g_malloc0(8 * 1024); |
| |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), TYPE_PCA9552, |
| 0x60); |
| |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "tmp423", 0x4c); |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 5), "tmp423", 0x4c); |
| |
| /* The Witherspoon expects a TMP275 but a TMP105 is compatible */ |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), TYPE_TMP105, |
| 0x4a); |
| |
| /* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is |
| * good enough */ |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32); |
| |
| smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), 0x51, |
| eeprom_buf); |
| i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), TYPE_PCA9552, |
| 0x60); |
| } |
| |
| static void aspeed_machine_init(MachineState *machine) |
| { |
| AspeedMachineClass *amc = ASPEED_MACHINE_GET_CLASS(machine); |
| |
| aspeed_board_init(machine, amc->board); |
| } |
| |
| static void aspeed_machine_class_init(ObjectClass *oc, void *data) |
| { |
| MachineClass *mc = MACHINE_CLASS(oc); |
| AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc); |
| const AspeedBoardConfig *board = data; |
| |
| mc->desc = board->desc; |
| mc->init = aspeed_machine_init; |
| mc->max_cpus = 1; |
| mc->no_sdcard = 1; |
| mc->no_floppy = 1; |
| mc->no_cdrom = 1; |
| mc->no_parallel = 1; |
| if (board->ram) { |
| mc->default_ram_size = board->ram; |
| } |
| amc->board = board; |
| } |
| |
| static const TypeInfo aspeed_machine_type = { |
| .name = TYPE_ASPEED_MACHINE, |
| .parent = TYPE_MACHINE, |
| .instance_size = sizeof(AspeedMachine), |
| .class_size = sizeof(AspeedMachineClass), |
| .abstract = true, |
| }; |
| |
| static const AspeedBoardConfig aspeed_boards[] = { |
| { |
| .name = MACHINE_TYPE_NAME("palmetto-bmc"), |
| .desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)", |
| .soc_name = "ast2400-a1", |
| .hw_strap1 = PALMETTO_BMC_HW_STRAP1, |
| .fmc_model = "n25q256a", |
| .spi_model = "mx25l25635e", |
| .num_cs = 1, |
| .i2c_init = palmetto_bmc_i2c_init, |
| .ram = 256 * MiB, |
| }, { |
| .name = MACHINE_TYPE_NAME("ast2500-evb"), |
| .desc = "Aspeed AST2500 EVB (ARM1176)", |
| .soc_name = "ast2500-a1", |
| .hw_strap1 = AST2500_EVB_HW_STRAP1, |
| .fmc_model = "w25q256", |
| .spi_model = "mx25l25635e", |
| .num_cs = 1, |
| .i2c_init = ast2500_evb_i2c_init, |
| .ram = 512 * MiB, |
| }, { |
| .name = MACHINE_TYPE_NAME("romulus-bmc"), |
| .desc = "OpenPOWER Romulus BMC (ARM1176)", |
| .soc_name = "ast2500-a1", |
| .hw_strap1 = ROMULUS_BMC_HW_STRAP1, |
| .fmc_model = "n25q256a", |
| .spi_model = "mx66l1g45g", |
| .num_cs = 2, |
| .i2c_init = romulus_bmc_i2c_init, |
| .ram = 512 * MiB, |
| }, { |
| .name = MACHINE_TYPE_NAME("witherspoon-bmc"), |
| .desc = "OpenPOWER Witherspoon BMC (ARM1176)", |
| .soc_name = "ast2500-a1", |
| .hw_strap1 = WITHERSPOON_BMC_HW_STRAP1, |
| .fmc_model = "mx25l25635e", |
| .spi_model = "mx66l1g45g", |
| .num_cs = 2, |
| .i2c_init = witherspoon_bmc_i2c_init, |
| .ram = 512 * MiB, |
| }, |
| }; |
| |
| static void aspeed_machine_types(void) |
| { |
| int i; |
| |
| type_register_static(&aspeed_machine_type); |
| for (i = 0; i < ARRAY_SIZE(aspeed_boards); ++i) { |
| TypeInfo ti = { |
| .name = aspeed_boards[i].name, |
| .parent = TYPE_ASPEED_MACHINE, |
| .class_init = aspeed_machine_class_init, |
| .class_data = (void *)&aspeed_boards[i], |
| }; |
| type_register(&ti); |
| } |
| } |
| |
| type_init(aspeed_machine_types) |