LXR qemu/hw/arm/cubieboard.c

   1/*
   2 * cubieboard emulation
   3 *
   4 * Copyright (C) 2013 Li Guang
   5 * Written by Li Guang <lig.fnst@cn.fujitsu.com>
   6 *
   7 * This program is free software; you can redistribute it and/or modify it
   8 * under the terms of the GNU General Public License as published by the
   9 * Free Software Foundation; either version 2 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful, but WITHOUT
  13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  15 * for more details.
  16 */
  17
  18#include "qemu/osdep.h"
  19#include "qapi/error.h"
  20#include "hw/boards.h"
  21#include "hw/qdev-properties.h"
  22#include "hw/arm/allwinner-a10.h"
  23
  24static struct arm_boot_info cubieboard_binfo = {
  25    .loader_start = AW_A10_SDRAM_BASE,
  26    .board_id = 0x1008,
  27};
  28
  29static void cubieboard_init(MachineState *machine)
  30{
  31    AwA10State *a10;
  32    Error *err = NULL;
  33    DriveInfo *di;
  34    BlockBackend *blk;
  35    BusState *bus;
  36    DeviceState *carddev;
  37
  38    /* BIOS is not supported by this board */
  39    if (machine->firmware) {
  40        error_report("BIOS not supported for this machine");
  41        exit(1);
  42    }
  43
  44    /* This board has fixed size RAM (512MiB or 1GiB) */
  45    if (machine->ram_size != 512 * MiB &&
  46        machine->ram_size != 1 * GiB) {
  47        error_report("This machine can only be used with 512MiB or 1GiB RAM");
  48        exit(1);
  49    }
  50
  51    /* Only allow Cortex-A8 for this board */
  52    if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a8")) != 0) {
  53        error_report("This board can only be used with cortex-a8 CPU");
  54        exit(1);
  55    }
  56
  57    a10 = AW_A10(object_new(TYPE_AW_A10));
  58    object_property_add_child(OBJECT(machine), "soc", OBJECT(a10));
  59    object_unref(OBJECT(a10));
  60
  61    if (!object_property_set_int(OBJECT(&a10->emac), "phy-addr", 1, &err)) {
  62        error_reportf_err(err, "Couldn't set phy address: ");
  63        exit(1);
  64    }
  65
  66    if (!object_property_set_int(OBJECT(&a10->timer), "clk0-freq", 32768,
  67                                 &err)) {
  68        error_reportf_err(err, "Couldn't set clk0 frequency: ");
  69        exit(1);
  70    }
  71
  72    if (!object_property_set_int(OBJECT(&a10->timer), "clk1-freq", 24000000,
  73                                 &err)) {
  74        error_reportf_err(err, "Couldn't set clk1 frequency: ");
  75        exit(1);
  76    }
  77
  78    if (!qdev_realize(DEVICE(a10), NULL, &err)) {
  79        error_reportf_err(err, "Couldn't realize Allwinner A10: ");
  80        exit(1);
  81    }
  82
  83    /* Retrieve SD bus */
  84    di = drive_get_next(IF_SD);
  85    blk = di ? blk_by_legacy_dinfo(di) : NULL;
  86    bus = qdev_get_child_bus(DEVICE(a10), "sd-bus");
  87
  88    /* Plug in SD card */
  89    carddev = qdev_new(TYPE_SD_CARD);
  90    qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
  91    qdev_realize_and_unref(carddev, bus, &error_fatal);
  92
  93    memory_region_add_subregion(get_system_memory(), AW_A10_SDRAM_BASE,
  94                                machine->ram);
  95
  96    /* TODO create and connect IDE devices for ide_drive_get() */
  97
  98    cubieboard_binfo.ram_size = machine->ram_size;
  99    arm_load_kernel(&a10->cpu, machine, &cubieboard_binfo);
 100}
 101
 102static void cubieboard_machine_init(MachineClass *mc)
 103{
 104    mc->desc = "cubietech cubieboard (Cortex-A8)";
 105    mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a8");
 106    mc->default_ram_size = 1 * GiB;
 107    mc->init = cubieboard_init;
 108    mc->block_default_type = IF_IDE;
 109    mc->units_per_default_bus = 1;
 110    mc->ignore_memory_transaction_failures = true;
 111    mc->default_ram_id = "cubieboard.ram";
 112}
 113
 114DEFINE_MACHINE("cubieboard", cubieboard_machine_init)
 115