qemu/hw/arm/orangepi.c
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   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
  31static struct arm_boot_info orangepi_binfo = {
  32    .nb_cpus = AW_H3_NUM_CPUS,
  33};
  34
  35static 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 (machine->firmware) {
  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), "clk0-freq", 32768, &error_abort);
  67    object_property_set_int(OBJECT(h3), "clk1-freq", 24 * 1000 * 1000,
  68                            &error_abort);
  69
  70    /* Setup SID properties. Currently using a default fixed SID identifier. */
  71    if (qemu_uuid_is_null(&h3->sid.identifier)) {
  72        qdev_prop_set_string(DEVICE(h3), "identifier",
  73                             "02c00081-1111-2222-3333-000044556677");
  74    } else if (ldl_be_p(&h3->sid.identifier.data[0]) != 0x02c00081) {
  75        warn_report("Security Identifier value does not include H3 prefix");
  76    }
  77
  78    /* Setup EMAC properties */
  79    object_property_set_int(OBJECT(&h3->emac), "phy-addr", 1, &error_abort);
  80
  81    /* DRAMC */
  82    object_property_set_uint(OBJECT(h3), "ram-addr", h3->memmap[AW_H3_DEV_SDRAM],
  83                             &error_abort);
  84    object_property_set_int(OBJECT(h3), "ram-size", machine->ram_size / MiB,
  85                            &error_abort);
  86
  87    /* Mark H3 object realized */
  88    qdev_realize(DEVICE(h3), NULL, &error_abort);
  89
  90    /* Retrieve SD bus */
  91    di = drive_get_next(IF_SD);
  92    blk = di ? blk_by_legacy_dinfo(di) : NULL;
  93    bus = qdev_get_child_bus(DEVICE(h3), "sd-bus");
  94
  95    /* Plug in SD card */
  96    carddev = qdev_new(TYPE_SD_CARD);
  97    qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
  98    qdev_realize_and_unref(carddev, bus, &error_fatal);
  99
 100    /* SDRAM */
 101    memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_DEV_SDRAM],
 102                                machine->ram);
 103
 104    /* Load target kernel or start using BootROM */
 105    if (!machine->kernel_filename && blk && blk_is_available(blk)) {
 106        /* Use Boot ROM to copy data from SD card to SRAM */
 107        allwinner_h3_bootrom_setup(h3, blk);
 108    }
 109    orangepi_binfo.loader_start = h3->memmap[AW_H3_DEV_SDRAM];
 110    orangepi_binfo.ram_size = machine->ram_size;
 111    arm_load_kernel(ARM_CPU(first_cpu), machine, &orangepi_binfo);
 112}
 113
 114static void orangepi_machine_init(MachineClass *mc)
 115{
 116    mc->desc = "Orange Pi PC (Cortex-A7)";
 117    mc->init = orangepi_init;
 118    mc->block_default_type = IF_SD;
 119    mc->units_per_default_bus = 1;
 120    mc->min_cpus = AW_H3_NUM_CPUS;
 121    mc->max_cpus = AW_H3_NUM_CPUS;
 122    mc->default_cpus = AW_H3_NUM_CPUS;
 123    mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
 124    mc->default_ram_size = 1 * GiB;
 125    mc->default_ram_id = "orangepi.ram";
 126}
 127
 128DEFINE_MACHINE("orangepi-pc", orangepi_machine_init)
 129