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aspeed: Add AST2600 (BMC) to fby35 

You can test booting the BMC with both '-device loader' and '-drive
file'. This is necessary because of how the fb-openbmc boot sequence
works (jump to 0x20000000 after U-Boot SPL).

    wget https://github.com/facebook/openbmc/releases/download/openbmc-e2294ff5d31d/fby35.mtd
    qemu-system-arm -machine fby35 -nographic \
        -device loader,file=fby35.mtd,addr=0,cpu-num=0 -drive file=fby35.mtd,format=raw,if=mtd

Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220705191400.41632-7-peter@pjd.dev>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Peter Delevoryas 2022-07-14 16:24:38 +02:00 committed by Cédric Le Goater
parent c2f58c2fa2
commit 778e14cc5c
1 changed files with 41 additions and 0 deletions
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41
hw/arm/fby35.c
View File

@ -6,17 +6,55 @@
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "sysemu/sysemu.h"
#include "hw/boards.h"
#include "hw/arm/aspeed_soc.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;
AspeedSoCState bmc;
};
#define FBY35_BMC_RAM_SIZE (2 * GiB)
static void fby35_bmc_init(Fby35State *s)
{
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);
}
static void fby35_init(MachineState *machine)
{
Fby35State *s = FBY35(machine);
fby35_bmc_init(s);
}
static void fby35_class_init(ObjectClass *oc, void *data)
@ -25,6 +63,9 @@ static void fby35_class_init(ObjectClass *oc, void *data)
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 = 2;
}
static const TypeInfo fby35_types[] = {