diff options
Diffstat (limited to 'hw/arm/fby35.c')
| -rw-r--r-- | hw/arm/fby35.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/hw/arm/fby35.c b/hw/arm/fby35.c new file mode 100644 index 0000000000..79605f3064 --- /dev/null +++ b/hw/arm/fby35.c @@ -0,0 +1,188 @@ +/* + * Copyright (c) Meta Platforms, Inc. and affiliates. (http://www.meta.com) + * + * 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 "qemu/units.h" +#include "qapi/error.h" +#include "sysemu/sysemu.h" +#include "sysemu/block-backend.h" +#include "hw/boards.h" +#include "hw/qdev-clock.h" +#include "hw/arm/aspeed_soc.h" +#include "hw/arm/boot.h" + +#define TYPE_FBY35 MACHINE_TYPE_NAME("fby35") +OBJECT_DECLARE_SIMPLE_TYPE(Fby35State, FBY35); + +struct Fby35State { + MachineState parent_obj; + + MemoryRegion bmc_memory; + MemoryRegion bmc_dram; + MemoryRegion bmc_boot_rom; + MemoryRegion bic_memory; + Clock *bic_sysclk; + + AspeedSoCState bmc; + AspeedSoCState bic; + + bool mmio_exec; +}; + +#define FBY35_BMC_RAM_SIZE (2 * GiB) +#define FBY35_BMC_FIRMWARE_ADDR 0x0 + +static void fby35_bmc_write_boot_rom(DriveInfo *dinfo, MemoryRegion *mr, + hwaddr offset, size_t rom_size, + Error **errp) +{ + BlockBackend *blk = blk_by_legacy_dinfo(dinfo); + g_autofree void *storage = NULL; + 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_malloc0(rom_size); + if (blk_pread(blk, 0, rom_size, storage, 0) < 0) { + error_setg(errp, "failed to read the initial flash content"); + return; + } + + /* TODO: find a better way to install the ROM */ + memcpy(memory_region_get_ram_ptr(mr) + offset, storage, rom_size); +} + +static void fby35_bmc_init(Fby35State *s) +{ + DriveInfo *drive0 = drive_get(IF_MTD, 0, 0); + + memory_region_init(&s->bmc_memory, OBJECT(s), "bmc-memory", UINT64_MAX); + memory_region_init_ram(&s->bmc_dram, OBJECT(s), "bmc-dram", + FBY35_BMC_RAM_SIZE, &error_abort); + + object_initialize_child(OBJECT(s), "bmc", &s->bmc, "ast2600-a3"); + object_property_set_int(OBJECT(&s->bmc), "ram-size", FBY35_BMC_RAM_SIZE, + &error_abort); + object_property_set_link(OBJECT(&s->bmc), "memory", OBJECT(&s->bmc_memory), + &error_abort); + object_property_set_link(OBJECT(&s->bmc), "dram", OBJECT(&s->bmc_dram), + &error_abort); + object_property_set_int(OBJECT(&s->bmc), "hw-strap1", 0x000000C0, + &error_abort); + object_property_set_int(OBJECT(&s->bmc), "hw-strap2", 0x00000003, + &error_abort); + aspeed_soc_uart_set_chr(&s->bmc, ASPEED_DEV_UART5, serial_hd(0)); + qdev_realize(DEVICE(&s->bmc), NULL, &error_abort); + + aspeed_board_init_flashes(&s->bmc.fmc, "n25q00", 2, 0); + + /* Install first FMC flash content as a boot rom. */ + if (drive0) { + AspeedSMCFlash *fl = &s->bmc.fmc.flashes[0]; + MemoryRegion *boot_rom = g_new(MemoryRegion, 1); + uint64_t size = memory_region_size(&fl->mmio); + + if (s->mmio_exec) { + memory_region_init_alias(boot_rom, NULL, "aspeed.boot_rom", + &fl->mmio, 0, size); + memory_region_add_subregion(&s->bmc_memory, FBY35_BMC_FIRMWARE_ADDR, + boot_rom); + } else { + + memory_region_init_rom(boot_rom, NULL, "aspeed.boot_rom", + size, &error_abort); + memory_region_add_subregion(&s->bmc_memory, FBY35_BMC_FIRMWARE_ADDR, + boot_rom); + fby35_bmc_write_boot_rom(drive0, boot_rom, FBY35_BMC_FIRMWARE_ADDR, + size, &error_abort); + } + } +} + +static void fby35_bic_init(Fby35State *s) +{ + s->bic_sysclk = clock_new(OBJECT(s), "SYSCLK"); + clock_set_hz(s->bic_sysclk, 200000000ULL); + + memory_region_init(&s->bic_memory, OBJECT(s), "bic-memory", UINT64_MAX); + + object_initialize_child(OBJECT(s), "bic", &s->bic, "ast1030-a1"); + qdev_connect_clock_in(DEVICE(&s->bic), "sysclk", s->bic_sysclk); + object_property_set_link(OBJECT(&s->bic), "memory", OBJECT(&s->bic_memory), + &error_abort); + aspeed_soc_uart_set_chr(&s->bic, ASPEED_DEV_UART5, serial_hd(1)); + qdev_realize(DEVICE(&s->bic), NULL, &error_abort); + + aspeed_board_init_flashes(&s->bic.fmc, "sst25vf032b", 2, 2); + aspeed_board_init_flashes(&s->bic.spi[0], "sst25vf032b", 2, 4); + aspeed_board_init_flashes(&s->bic.spi[1], "sst25vf032b", 2, 6); +} + +static void fby35_init(MachineState *machine) +{ + Fby35State *s = FBY35(machine); + + fby35_bmc_init(s); + fby35_bic_init(s); +} + + +static bool fby35_get_mmio_exec(Object *obj, Error **errp) +{ + return FBY35(obj)->mmio_exec; +} + +static void fby35_set_mmio_exec(Object *obj, bool value, Error **errp) +{ + FBY35(obj)->mmio_exec = value; +} + +static void fby35_instance_init(Object *obj) +{ + FBY35(obj)->mmio_exec = false; +} + +static void fby35_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + + mc->desc = "Meta Platforms fby35"; + mc->init = fby35_init; + mc->no_floppy = 1; + mc->no_cdrom = 1; + mc->min_cpus = mc->max_cpus = mc->default_cpus = 3; + + object_class_property_add_bool(oc, "execute-in-place", + fby35_get_mmio_exec, + fby35_set_mmio_exec); + object_class_property_set_description(oc, "execute-in-place", + "boot directly from CE0 flash device"); +} + +static const TypeInfo fby35_types[] = { + { + .name = MACHINE_TYPE_NAME("fby35"), + .parent = TYPE_MACHINE, + .class_init = fby35_class_init, + .instance_size = sizeof(Fby35State), + .instance_init = fby35_instance_init, + }, +}; + +DEFINE_TYPES(fby35_types); |