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
  39     /* BIOS is not supported by this board */
  40     if (bios_name) {
  41         error_report("BIOS not supported for this machine");
  42         exit(1);
  43     }
  44
  45     /* This board has fixed size RAM */
  46     if (machine->ram_size != 1 * GiB) {
  47         error_report("This machine can only be used with 1GiB of RAM");
  48         exit(1);
  49     }
  50
  51     /* Only allow Cortex-A7 for this board */
  52     if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a7")) != 0) {
  53         error_report("This board can only be used with cortex-a7 CPU");
  54         exit(1);
  55     }
  56
  57     h3 = AW_H3(object_new(TYPE_AW_H3));
  58     object_property_add_child(OBJECT(machine), "soc", OBJECT(h3),
  59                               &error_abort);
  60     object_unref(OBJECT(h3));
  61
  62     /* Setup timer properties */
  63     object_property_set_int(OBJECT(h3), 32768, "clk0-freq",
  64                             &error_abort);
  65     object_property_set_int(OBJECT(h3), 24 * 1000 * 1000, "clk1-freq",
  66                             &error_abort);
  67
  68     /* Setup SID properties. Currently using a default fixed SID identifier. */
  69     if (qemu_uuid_is_null(&h3->sid.identifier)) {
  70         qdev_prop_set_string(DEVICE(h3), "identifier",
  71                              "02c00081-1111-2222-3333-000044556677");
  72     } else if (ldl_be_p(&h3->sid.identifier.data[0]) != 0x02c00081) {
  73         warn_report("Security Identifier value does not include H3 prefix");
  74     }
  75
  76     /* Mark H3 object realized */
  77     object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
  78
  79     /* SDRAM */
  80     memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_SDRAM],
  81                                 machine->ram);
  82
  83     orangepi_binfo.loader_start = h3->memmap[AW_H3_SDRAM];
  84     orangepi_binfo.ram_size = machine->ram_size;
  85     arm_load_kernel(ARM_CPU(first_cpu), machine, &orangepi_binfo);
  86 }
  87
  88 static void orangepi_machine_init(MachineClass *mc)
  89 {
  90     mc->desc = "Orange Pi PC";
  91     mc->init = orangepi_init;
  92     mc->min_cpus = AW_H3_NUM_CPUS;
  93     mc->max_cpus = AW_H3_NUM_CPUS;
  94     mc->default_cpus = AW_H3_NUM_CPUS;
  95     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
  96     mc->default_ram_size = 1 * GiB;
  97     mc->default_ram_id = "orangepi.ram";
  98 }
  99
 100 DEFINE_MACHINE("orangepi-pc", orangepi_machine_init)