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 "qemu/error-report.h"
  25#include "hw/boards.h"
  26#include "hw/qdev-properties.h"
  27#include "hw/arm/allwinner-h3.h"
  28
  29static struct arm_boot_info orangepi_binfo;
  30
  31static void orangepi_init(MachineState *machine)
  32{
  33    AwH3State *h3;
  34    DriveInfo *di;
  35    BlockBackend *blk;
  36    BusState *bus;
  37    DeviceState *carddev;
  38
  39    /* BIOS is not supported by this board */
  40    if (machine->firmware) {
  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    object_unref(OBJECT(h3));
  60
  61    /* Setup timer properties */
  62    object_property_set_int(OBJECT(h3), "clk0-freq", 32768, &error_abort);
  63    object_property_set_int(OBJECT(h3), "clk1-freq", 24 * 1000 * 1000,
  64                            &error_abort);
  65
  66    /* Setup SID properties. Currently using a default fixed SID identifier. */
  67    if (qemu_uuid_is_null(&h3->sid.identifier)) {
  68        qdev_prop_set_string(DEVICE(h3), "identifier",
  69                             "02c00081-1111-2222-3333-000044556677");
  70    } else if (ldl_be_p(&h3->sid.identifier.data[0]) != 0x02c00081) {
  71        warn_report("Security Identifier value does not include H3 prefix");
  72    }
  73
  74    /* Setup EMAC properties */
  75    object_property_set_int(OBJECT(&h3->emac), "phy-addr", 1, &error_abort);
  76
  77    /* DRAMC */
  78    object_property_set_uint(OBJECT(h3), "ram-addr", h3->memmap[AW_H3_DEV_SDRAM],
  79                             &error_abort);
  80    object_property_set_int(OBJECT(h3), "ram-size", machine->ram_size / MiB,
  81                            &error_abort);
  82
  83    /* Mark H3 object realized */
  84    qdev_realize(DEVICE(h3), NULL, &error_abort);
  85
  86    /* Retrieve SD bus */
  87    di = drive_get(IF_SD, 0, 0);
  88    blk = di ? blk_by_legacy_dinfo(di) : NULL;
  89    bus = qdev_get_child_bus(DEVICE(h3), "sd-bus");
  90
  91    /* Plug in SD card */
  92    carddev = qdev_new(TYPE_SD_CARD);
  93    qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
  94    qdev_realize_and_unref(carddev, bus, &error_fatal);
  95
  96    /* SDRAM */
  97    memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_DEV_SDRAM],
  98                                machine->ram);
  99
 100    /* Load target kernel or start using BootROM */
 101    if (!machine->kernel_filename && blk && blk_is_available(blk)) {
 102        /* Use Boot ROM to copy data from SD card to SRAM */
 103        allwinner_h3_bootrom_setup(h3, blk);
 104    }
 105    orangepi_binfo.loader_start = h3->memmap[AW_H3_DEV_SDRAM];
 106    orangepi_binfo.ram_size = machine->ram_size;
 107    orangepi_binfo.psci_conduit = QEMU_PSCI_CONDUIT_SMC;
 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