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 (bios_name) { 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"; 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) 129