115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
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/*
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* SABRELITE Board System emulation.
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*
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* Copyright (c) 2015 Jean-Christophe Dubois <jcd@tribudubois.net>
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*
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* This code is licensed under the GPL, version 2 or later.
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* See the file `COPYING' in the top level directory.
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*
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* It (partially) emulates a sabrelite board, with a Freescale
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* i.MX6 SoC
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "hw/arm/fsl-imx6.h"
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#include "hw/boards.h"
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#include "hw/qdev-properties.h"
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#include "qemu/error-report.h"
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#include "sysemu/qtest.h"
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static struct arm_boot_info sabrelite_binfo = {
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/* DDR memory start */
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.loader_start = FSL_IMX6_MMDC_ADDR,
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/* No board ID, we boot from DT tree */
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.board_id = -1,
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};
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/* No need to do any particular setup for secondary boot */
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static void sabrelite_write_secondary(ARMCPU *cpu,
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const struct arm_boot_info *info)
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{
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}
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/* Secondary cores are reset through SRC device */
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static void sabrelite_reset_secondary(ARMCPU *cpu,
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const struct arm_boot_info *info)
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{
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}
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static void sabrelite_init(MachineState *machine)
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{
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FslIMX6State *s;
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/* Check the amount of memory is compatible with the SOC */
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if (machine->ram_size > FSL_IMX6_MMDC_SIZE) {
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error_report("RAM size " RAM_ADDR_FMT " above max supported (%08x)",
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machine->ram_size, FSL_IMX6_MMDC_SIZE);
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exit(1);
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}
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s = FSL_IMX6(object_new(TYPE_FSL_IMX6));
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object_property_add_child(OBJECT(machine), "soc", OBJECT(s));
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/* Ethernet PHY address is 6 */
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object_property_set_int(OBJECT(s), "fec-phy-num", 6, &error_fatal);
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qdev_realize(DEVICE(s), NULL, &error_fatal);
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memory_region_add_subregion(get_system_memory(), FSL_IMX6_MMDC_ADDR,
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machine->ram);
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{
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/*
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* TODO: Ideally we would expose the chip select and spi bus on the
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* SoC object using alias properties; then we would not need to
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* directly access the underlying spi device object.
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*/
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/* Add the sst25vf016b NOR FLASH memory to first SPI */
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Object *spi_dev;
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spi_dev = object_resolve_path_component(OBJECT(s), "spi1");
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if (spi_dev) {
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SSIBus *spi_bus;
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spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(spi_dev), "spi");
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if (spi_bus) {
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DeviceState *flash_dev;
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qemu_irq cs_line;
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DriveInfo *dinfo = drive_get(IF_MTD, 0, 0);
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flash_dev = qdev_new("sst25vf016b");
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if (dinfo) {
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qdev_prop_set_drive_err(flash_dev, "drive",
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blk_by_legacy_dinfo(dinfo),
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&error_fatal);
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}
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qdev_realize_and_unref(flash_dev, BUS(spi_bus), &error_fatal);
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cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
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qdev_connect_gpio_out(DEVICE(&s->gpio[2]), 19, cs_line);
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}
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}
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}
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sabrelite_binfo.ram_size = machine->ram_size;
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sabrelite_binfo.secure_boot = true;
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sabrelite_binfo.write_secondary_boot = sabrelite_write_secondary;
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sabrelite_binfo.secondary_cpu_reset_hook = sabrelite_reset_secondary;
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if (!qtest_enabled()) {
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arm_load_kernel(&s->cpu[0], machine, &sabrelite_binfo);
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}
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}
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static void sabrelite_machine_init(MachineClass *mc)
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{
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mc->desc = "Freescale i.MX6 Quad SABRE Lite Board (Cortex-A9)";
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mc->init = sabrelite_init;
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mc->max_cpus = FSL_IMX6_NUM_CPUS;
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mc->ignore_memory_transaction_failures = true;
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mc->default_ram_id = "sabrelite.ram";
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}
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DEFINE_MACHINE("sabrelite", sabrelite_machine_init)
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