qemu

FORK: QEMU emulator
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orangepi.c (4388B)

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