hw/arm/orangepi.c

   1 /*
   2  * Orange Pi emulation
   3  *
   4  * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "qemu/osdep.h"
  21 #include "qemu/units.h"
  22 #include "exec/address-spaces.h"
  23 #include "qapi/error.h"
  24 #include "cpu.h"
  25 #include "hw/sysbus.h"
  26 #include "hw/boards.h"
  27 #include "hw/qdev-properties.h"
  28 #include "hw/arm/allwinner-h3.h"
  29 #include "sysemu/sysemu.h"
  30
  31 static struct arm_boot_info orangepi_binfo = {
  32     .nb_cpus = AW_H3_NUM_CPUS,
  33 };
  34
  35 static void orangepi_init(MachineState *machine)
  36 {
  37     AwH3State *h3;
  38     DriveInfo *di;
  39     BlockBackend *blk;
  40     BusState *bus;
  41     DeviceState *carddev;
  42
  43     /* BIOS is not supported by this board */
  44     if (bios_name) {
  45         error_report("BIOS not supported for this machine");
  46         exit(1);
  47     }
  48
  49     /* This board has fixed size RAM */
  50     if (machine->ram_size != 1 * GiB) {
  51         error_report("This machine can only be used with 1GiB of RAM");
  52         exit(1);
  53     }
  54
  55     /* Only allow Cortex-A7 for this board */
  56     if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a7")) != 0) {
  57         error_report("This board can only be used with cortex-a7 CPU");
  58         exit(1);
  59     }
  60
  61     h3 = AW_H3(object_new(TYPE_AW_H3));
  62     object_property_add_child(OBJECT(machine), "soc", OBJECT(h3));
  63     object_unref(OBJECT(h3));
  64
  65     /* Setup timer properties */
  66     object_property_set_int(OBJECT(h3), 32768, "clk0-freq",
  67                             &error_abort);
  68     object_property_set_int(OBJECT(h3), 24 * 1000 * 1000, "clk1-freq",
  69                             &error_abort);
  70
  71     /* Setup SID properties. Currently using a default fixed SID identifier. */
  72     if (qemu_uuid_is_null(&h3->sid.identifier)) {
  73         qdev_prop_set_string(DEVICE(h3), "identifier",
  74                              "02c00081-1111-2222-3333-000044556677");
  75     } else if (ldl_be_p(&h3->sid.identifier.data[0]) != 0x02c00081) {
  76         warn_report("Security Identifier value does not include H3 prefix");
  77     }
  78
  79     /* Setup EMAC properties */
  80     object_property_set_int(OBJECT(&h3->emac), 1, "phy-addr", &error_abort);
  81
  82     /* DRAMC */
  83     object_property_set_uint(OBJECT(h3), h3->memmap[AW_H3_SDRAM],
  84                              "ram-addr", &error_abort);
  85     object_property_set_int(OBJECT(h3), machine->ram_size / MiB, "ram-size",
  86                             &error_abort);
  87
  88     /* Mark H3 object realized */
  89     qdev_realize(DEVICE(h3), NULL, &error_abort);
  90
  91     /* Retrieve SD bus */
  92     di = drive_get_next(IF_SD);
  93     blk = di ? blk_by_legacy_dinfo(di) : NULL;
  94     bus = qdev_get_child_bus(DEVICE(h3), "sd-bus");
  95
  96     /* Plug in SD card */
  97     carddev = qdev_new(TYPE_SD_CARD);
  98     qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
  99     qdev_realize_and_unref(carddev, bus, &error_fatal);
 100
 101     /* SDRAM */
 102     memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_SDRAM],
 103                                 machine->ram);
 104
 105     /* Load target kernel or start using BootROM */
 106     if (!machine->kernel_filename && blk && blk_is_available(blk)) {
 107         /* Use Boot ROM to copy data from SD card to SRAM */
 108         allwinner_h3_bootrom_setup(h3, blk);
 109     }
 110     orangepi_binfo.loader_start = h3->memmap[AW_H3_SDRAM];
 111     orangepi_binfo.ram_size = machine->ram_size;
 112     arm_load_kernel(ARM_CPU(first_cpu), machine, &orangepi_binfo);
 113 }
 114
 115 static void orangepi_machine_init(MachineClass *mc)
 116 {
 117     mc->desc = "Orange Pi PC";
 118     mc->init = orangepi_init;
 119     mc->block_default_type = IF_SD;
 120     mc->units_per_default_bus = 1;
 121     mc->min_cpus = AW_H3_NUM_CPUS;
 122     mc->max_cpus = AW_H3_NUM_CPUS;
 123     mc->default_cpus = AW_H3_NUM_CPUS;
 124     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
 125     mc->default_ram_size = 1 * GiB;
 126     mc->default_ram_id = "orangepi.ram";
 127 }
 128
 129 DEFINE_MACHINE("orangepi-pc", orangepi_machine_init)