qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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cubieboard.c (3641B)

      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 
     24 static struct arm_boot_info cubieboard_binfo = {
     25     .loader_start = AW_A10_SDRAM_BASE,
     26     .board_id = 0x1008,
     27 };
     28 
     29 static 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(IF_SD, 0, 0);
     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 
    102 static 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 
    114 DEFINE_MACHINE("cubieboard", cubieboard_machine_init)