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/*
* 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);
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