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 (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
 114 static 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
 128 DEFINE_MACHINE("orangepi-pc", orangepi_machine_init)