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/*
* SABRELITE Board System emulation.
*
* Copyright (c) 2015 Jean-Christophe Dubois <jcd@tribudubois.net>
*
* This code is licensed under the GPL, version 2 or later.
* See the file `COPYING' in the top level directory.
*
* It (partially) emulates a sabrelite board, with a Freescale
* i.MX6 SoC
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu-common.h"
#include "hw/arm/fsl-imx6.h"
#include "hw/boards.h"
#include "sysemu/sysemu.h"
#include "qemu/error-report.h"
#include "sysemu/qtest.h"
typedef struct IMX6Sabrelite {
FslIMX6State soc;
MemoryRegion ram;
} IMX6Sabrelite;
static struct arm_boot_info sabrelite_binfo = {
/* DDR memory start */
.loader_start = FSL_IMX6_MMDC_ADDR,
/* No board ID, we boot from DT tree */
.board_id = -1,
};
/* No need to do any particular setup for secondary boot */
static void sabrelite_write_secondary(ARMCPU *cpu,
const struct arm_boot_info *info)
{
}
/* Secondary cores are reset through SRC device */
static void sabrelite_reset_secondary(ARMCPU *cpu,
const struct arm_boot_info *info)
{
}
static void sabrelite_init(MachineState *machine)
{
IMX6Sabrelite *s = g_new0(IMX6Sabrelite, 1);
Error *err = NULL;
/* Check the amount of memory is compatible with the SOC */
if (machine->ram_size > FSL_IMX6_MMDC_SIZE) {
error_report("RAM size " RAM_ADDR_FMT " above max supported (%08x)",
machine->ram_size, FSL_IMX6_MMDC_SIZE);
exit(1);
}
object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX6);
object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
&error_abort);
object_property_set_bool(OBJECT(&s->soc), true, "realized", &err);
if (err != NULL) {
error_report("%s", error_get_pretty(err));
exit(1);
}
memory_region_allocate_system_memory(&s->ram, NULL, "sabrelite.ram",
machine->ram_size);
memory_region_add_subregion(get_system_memory(), FSL_IMX6_MMDC_ADDR,
&s->ram);
{
/*
* TODO: Ideally we would expose the chip select and spi bus on the
* SoC object using alias properties; then we would not need to
* directly access the underlying spi device object.
*/
/* Add the sst25vf016b NOR FLASH memory to first SPI */
Object *spi_dev;
spi_dev = object_resolve_path_component(OBJECT(&s->soc), "spi1");
if (spi_dev) {
SSIBus *spi_bus;
spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(spi_dev), "spi");
if (spi_bus) {
DeviceState *flash_dev;
qemu_irq cs_line;
DriveInfo *dinfo = drive_get_next(IF_MTD);
flash_dev = ssi_create_slave_no_init(spi_bus, "sst25vf016b");
if (dinfo) {
qdev_prop_set_drive(flash_dev, "drive",
blk_by_legacy_dinfo(dinfo),
&error_fatal);
}
qdev_init_nofail(flash_dev);
cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
sysbus_connect_irq(SYS_BUS_DEVICE(spi_dev), 1, cs_line);
}
}
}
sabrelite_binfo.ram_size = machine->ram_size;
sabrelite_binfo.kernel_filename = machine->kernel_filename;
sabrelite_binfo.kernel_cmdline = machine->kernel_cmdline;
sabrelite_binfo.initrd_filename = machine->initrd_filename;
sabrelite_binfo.nb_cpus = smp_cpus;
sabrelite_binfo.secure_boot = true;
sabrelite_binfo.write_secondary_boot = sabrelite_write_secondary;
sabrelite_binfo.secondary_cpu_reset_hook = sabrelite_reset_secondary;
if (!qtest_enabled()) {
arm_load_kernel(&s->soc.cpu[0], &sabrelite_binfo);
}
}
static void sabrelite_machine_init(MachineClass *mc)
{
mc->desc = "Freescale i.MX6 Quad SABRE Lite Board (Cortex A9)";
mc->init = sabrelite_init;
mc->max_cpus = FSL_IMX6_NUM_CPUS;
}
DEFINE_MACHINE("sabrelite", sabrelite_machine_init)
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