LXR qemu/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 "hw/boards.h"
  25#include "hw/qdev-properties.h"
  26#include "hw/arm/allwinner-h3.h"
  27
  28static struct arm_boot_info orangepi_binfo = {
  29    .nb_cpus = AW_H3_NUM_CPUS,
  30};
  31
  32static void orangepi_init(MachineState *machine)
  33{
  34    AwH3State *h3;
  35    DriveInfo *di;
  36    BlockBackend *blk;
  37    BusState *bus;
  38    DeviceState *carddev;
  39
  40    /* BIOS is not supported by this board */
  41    if (machine->firmware) {
  42        error_report("BIOS not supported for this machine");
  43        exit(1);
  44    }
  45
  46    /* This board has fixed size RAM */
  47    if (machine->ram_size != 1 * GiB) {
  48        error_report("This machine can only be used with 1GiB of RAM");
  49        exit(1);
  50    }
  51
  52    /* Only allow Cortex-A7 for this board */
  53    if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a7")) != 0) {
  54        error_report("This board can only be used with cortex-a7 CPU");
  55        exit(1);
  56    }
  57
  58    h3 = AW_H3(object_new(TYPE_AW_H3));
  59    object_property_add_child(OBJECT(machine), "soc", OBJECT(h3));
  60    object_unref(OBJECT(h3));
  61
  62    /* Setup timer properties */
  63    object_property_set_int(OBJECT(h3), "clk0-freq", 32768, &error_abort);
  64    object_property_set_int(OBJECT(h3), "clk1-freq", 24 * 1000 * 1000,
  65                            &error_abort);
  66
  67    /* Setup SID properties. Currently using a default fixed SID identifier. */
  68    if (qemu_uuid_is_null(&h3->sid.identifier)) {
  69        qdev_prop_set_string(DEVICE(h3), "identifier",
  70                             "02c00081-1111-2222-3333-000044556677");
  71    } else if (ldl_be_p(&h3->sid.identifier.data[0]) != 0x02c00081) {
  72        warn_report("Security Identifier value does not include H3 prefix");
  73    }
  74
  75    /* Setup EMAC properties */
  76    object_property_set_int(OBJECT(&h3->emac), "phy-addr", 1, &error_abort);
  77
  78    /* DRAMC */
  79    object_property_set_uint(OBJECT(h3), "ram-addr", h3->memmap[AW_H3_DEV_SDRAM],
  80                             &error_abort);
  81    object_property_set_int(OBJECT(h3), "ram-size", machine->ram_size / MiB,
  82                            &error_abort);
  83
  84    /* Mark H3 object realized */
  85    qdev_realize(DEVICE(h3), NULL, &error_abort);
  86
  87    /* Retrieve SD bus */
  88    di = drive_get_next(IF_SD);
  89    blk = di ? blk_by_legacy_dinfo(di) : NULL;
  90    bus = qdev_get_child_bus(DEVICE(h3), "sd-bus");
  91
  92    /* Plug in SD card */
  93    carddev = qdev_new(TYPE_SD_CARD);
  94    qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
  95    qdev_realize_and_unref(carddev, bus, &error_fatal);
  96
  97    /* SDRAM */
  98    memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_DEV_SDRAM],
  99                                machine->ram);
 100
 101    /* Load target kernel or start using BootROM */
 102    if (!machine->kernel_filename && blk && blk_is_available(blk)) {
 103        /* Use Boot ROM to copy data from SD card to SRAM */
 104        allwinner_h3_bootrom_setup(h3, blk);
 105    }
 106    orangepi_binfo.loader_start = h3->memmap[AW_H3_DEV_SDRAM];
 107    orangepi_binfo.ram_size = machine->ram_size;
 108    arm_load_kernel(ARM_CPU(first_cpu), machine, &orangepi_binfo);
 109}
 110
 111static void orangepi_machine_init(MachineClass *mc)
 112{
 113    mc->desc = "Orange Pi PC (Cortex-A7)";
 114    mc->init = orangepi_init;
 115    mc->block_default_type = IF_SD;
 116    mc->units_per_default_bus = 1;
 117    mc->min_cpus = AW_H3_NUM_CPUS;
 118    mc->max_cpus = AW_H3_NUM_CPUS;
 119    mc->default_cpus = AW_H3_NUM_CPUS;
 120    mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
 121    mc->default_ram_size = 1 * GiB;
 122    mc->default_ram_id = "orangepi.ram";
 123}
 124
 125DEFINE_MACHINE("orangepi-pc", orangepi_machine_init)
 126