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