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
  28 static struct arm_boot_info cubieboard_binfo = {
  29     .loader_start = AW_A10_SDRAM_BASE,
  30     .board_id = 0x1008,
  31 };
  32
  33 static 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     object_property_set_int(OBJECT(&a10->emac), 1, "phy-addr", &err);
  66     if (err != NULL) {
  67         error_reportf_err(err, "Couldn't set phy address: ");
  68         exit(1);
  69     }
  70
  71     object_property_set_int(OBJECT(&a10->timer), 32768, "clk0-freq", &err);
  72     if (err != NULL) {
  73         error_reportf_err(err, "Couldn't set clk0 frequency: ");
  74         exit(1);
  75     }
  76
  77     object_property_set_int(OBJECT(&a10->timer), 24000000, "clk1-freq", &err);
  78     if (err != NULL) {
  79         error_reportf_err(err, "Couldn't set clk1 frequency: ");
  80         exit(1);
  81     }
  82
  83     qdev_realize(DEVICE(a10), NULL, &err);
  84     if (err != NULL) {
  85         error_reportf_err(err, "Couldn't realize Allwinner A10: ");
  86         exit(1);
  87     }
  88
  89     /* Retrieve SD bus */
  90     di = drive_get_next(IF_SD);
  91     blk = di ? blk_by_legacy_dinfo(di) : NULL;
  92     bus = qdev_get_child_bus(DEVICE(a10), "sd-bus");
  93
  94     /* Plug in SD card */
  95     carddev = qdev_new(TYPE_SD_CARD);
  96     qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
  97     qdev_realize_and_unref(carddev, bus, &error_fatal);
  98
  99     memory_region_add_subregion(get_system_memory(), AW_A10_SDRAM_BASE,
 100                                 machine->ram);
 101
 102     /* TODO create and connect IDE devices for ide_drive_get() */
 103
 104     cubieboard_binfo.ram_size = machine->ram_size;
 105     arm_load_kernel(&a10->cpu, machine, &cubieboard_binfo);
 106 }
 107
 108 static void cubieboard_machine_init(MachineClass *mc)
 109 {
 110     mc->desc = "cubietech cubieboard (Cortex-A8)";
 111     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a8");
 112     mc->default_ram_size = 1 * GiB;
 113     mc->init = cubieboard_init;
 114     mc->block_default_type = IF_IDE;
 115     mc->units_per_default_bus = 1;
 116     mc->ignore_memory_transaction_failures = true;
 117     mc->default_ram_id = "cubieboard.ram";
 118 }
 119
 120 DEFINE_MACHINE("cubieboard", cubieboard_machine_init)