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 "exec/address-spaces.h"
  20#include "qapi/error.h"
  21#include "cpu.h"
  22#include "sysemu/sysemu.h"
  23#include "hw/sysbus.h"
  24#include "hw/boards.h"
  25#include "hw/qdev-properties.h"
  26#include "hw/arm/allwinner-a10.h"
  27
  28static struct arm_boot_info cubieboard_binfo = {
  29    .loader_start = AW_A10_SDRAM_BASE,
  30    .board_id = 0x1008,
  31};
  32
  33static void cubieboard_init(MachineState *machine)
  34{
  35    AwA10State *a10;
  36    Error *err = NULL;
  37    DriveInfo *di;
  38    BlockBackend *blk;
  39    BusState *bus;
  40    DeviceState *carddev;
  41
  42    /* BIOS is not supported by this board */
  43    if (bios_name) {
  44        error_report("BIOS not supported for this machine");
  45        exit(1);
  46    }
  47
  48    /* This board has fixed size RAM (512MiB or 1GiB) */
  49    if (machine->ram_size != 512 * MiB &&
  50        machine->ram_size != 1 * GiB) {
  51        error_report("This machine can only be used with 512MiB or 1GiB RAM");
  52        exit(1);
  53    }
  54
  55    /* Only allow Cortex-A8 for this board */
  56    if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a8")) != 0) {
  57        error_report("This board can only be used with cortex-a8 CPU");
  58        exit(1);
  59    }
  60
  61    a10 = AW_A10(object_new(TYPE_AW_A10));
  62    object_property_add_child(OBJECT(machine), "soc", OBJECT(a10));
  63    object_unref(OBJECT(a10));
  64
  65    if (!object_property_set_int(OBJECT(&a10->emac), "phy-addr", 1, &err)) {
  66        error_reportf_err(err, "Couldn't set phy address: ");
  67        exit(1);
  68    }
  69
  70    if (!object_property_set_int(OBJECT(&a10->timer), "clk0-freq", 32768,
  71                                 &err)) {
  72        error_reportf_err(err, "Couldn't set clk0 frequency: ");
  73        exit(1);
  74    }
  75
  76    if (!object_property_set_int(OBJECT(&a10->timer), "clk1-freq", 24000000,
  77                                 &err)) {
  78        error_reportf_err(err, "Couldn't set clk1 frequency: ");
  79        exit(1);
  80    }
  81
  82    if (!qdev_realize(DEVICE(a10), NULL, &err)) {
  83        error_reportf_err(err, "Couldn't realize Allwinner A10: ");
  84        exit(1);
  85    }
  86
  87    /* Retrieve SD bus */
  88    di = drive_get_next(IF_SD);
  89    blk = di ? blk_by_legacy_dinfo(di) : NULL;
  90    bus = qdev_get_child_bus(DEVICE(a10), "sd-bus");
  91
  92    /* Plug in SD card */
  93    carddev = qdev_new(TYPE_SD_CARD);
  94    qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
  95    qdev_realize_and_unref(carddev, bus, &error_fatal);
  96
  97    memory_region_add_subregion(get_system_memory(), AW_A10_SDRAM_BASE,
  98                                machine->ram);
  99
 100    /* TODO create and connect IDE devices for ide_drive_get() */
 101
 102    cubieboard_binfo.ram_size = machine->ram_size;
 103    arm_load_kernel(&a10->cpu, machine, &cubieboard_binfo);
 104}
 105
 106static void cubieboard_machine_init(MachineClass *mc)
 107{
 108    mc->desc = "cubietech cubieboard (Cortex-A8)";
 109    mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a8");
 110    mc->default_ram_size = 1 * GiB;
 111    mc->init = cubieboard_init;
 112    mc->block_default_type = IF_IDE;
 113    mc->units_per_default_bus = 1;
 114    mc->ignore_memory_transaction_failures = true;
 115    mc->default_ram_id = "cubieboard.ram";
 116}
 117
 118DEFINE_MACHINE("cubieboard", cubieboard_machine_init)
 119