1 /* 2 * cubieboard emulation 3 * 4 * Copyright (C) 2013 Li Guang 5 * Written by Li Guang <lig.fnst@cn.fujitsu.com> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 * for more details. 16 */ 17 18 #include "qemu/osdep.h" 19 #include "qapi/error.h" 20 #include "hw/boards.h" 21 #include "hw/qdev-properties.h" 22 #include "hw/arm/allwinner-a10.h" 23 24 static struct arm_boot_info cubieboard_binfo = { 25 .loader_start = AW_A10_SDRAM_BASE, 26 .board_id = 0x1008, 27 }; 28 29 static void cubieboard_init(MachineState *machine) 30 { 31 AwA10State *a10; 32 Error *err = NULL; 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 (512MiB or 1GiB) */ 45 if (machine->ram_size != 512 * MiB && 46 machine->ram_size != 1 * GiB) { 47 error_report("This machine can only be used with 512MiB or 1GiB RAM"); 48 exit(1); 49 } 50 51 /* Only allow Cortex-A8 for this board */ 52 if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a8")) != 0) { 53 error_report("This board can only be used with cortex-a8 CPU"); 54 exit(1); 55 } 56 57 a10 = AW_A10(object_new(TYPE_AW_A10)); 58 object_property_add_child(OBJECT(machine), "soc", OBJECT(a10)); 59 object_unref(OBJECT(a10)); 60 61 if (!object_property_set_int(OBJECT(&a10->emac), "phy-addr", 1, &err)) { 62 error_reportf_err(err, "Couldn't set phy address: "); 63 exit(1); 64 } 65 66 if (!object_property_set_int(OBJECT(&a10->timer), "clk0-freq", 32768, 67 &err)) { 68 error_reportf_err(err, "Couldn't set clk0 frequency: "); 69 exit(1); 70 } 71 72 if (!object_property_set_int(OBJECT(&a10->timer), "clk1-freq", 24000000, 73 &err)) { 74 error_reportf_err(err, "Couldn't set clk1 frequency: "); 75 exit(1); 76 } 77 78 if (!qdev_realize(DEVICE(a10), NULL, &err)) { 79 error_reportf_err(err, "Couldn't realize Allwinner A10: "); 80 exit(1); 81 } 82 83 /* Retrieve SD bus */ 84 di = drive_get(IF_SD, 0, 0); 85 blk = di ? blk_by_legacy_dinfo(di) : NULL; 86 bus = qdev_get_child_bus(DEVICE(a10), "sd-bus"); 87 88 /* Plug in SD card */ 89 carddev = qdev_new(TYPE_SD_CARD); 90 qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal); 91 qdev_realize_and_unref(carddev, bus, &error_fatal); 92 93 memory_region_add_subregion(get_system_memory(), AW_A10_SDRAM_BASE, 94 machine->ram); 95 96 /* TODO create and connect IDE devices for ide_drive_get() */ 97 98 cubieboard_binfo.ram_size = machine->ram_size; 99 arm_load_kernel(&a10->cpu, machine, &cubieboard_binfo); 100 } 101 102 static void cubieboard_machine_init(MachineClass *mc) 103 { 104 mc->desc = "cubietech cubieboard (Cortex-A8)"; 105 mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a8"); 106 mc->default_ram_size = 1 * GiB; 107 mc->init = cubieboard_init; 108 mc->block_default_type = IF_IDE; 109 mc->units_per_default_bus = 1; 110 mc->ignore_memory_transaction_failures = true; 111 mc->default_ram_id = "cubieboard.ram"; 112 } 113 114 DEFINE_MACHINE("cubieboard", cubieboard_machine_init) 115