hw/arm/mcimx7d-sabre.c

   1 /*
   2  * Copyright (c) 2018, Impinj, Inc.
   3  *
   4  * MCIMX7D_SABRE Board System emulation.
   5  *
   6  * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
   7  *
   8  * This code is licensed under the GPL, version 2 or later.
   9  * See the file `COPYING' in the top level directory.
  10  *
  11  * It (partially) emulates a mcimx7d_sabre board, with a Freescale
  12  * i.MX7 SoC
  13  */
  14
  15 #include "qemu/osdep.h"
  16 #include "qapi/error.h"
  17 #include "qemu-common.h"
  18 #include "hw/arm/fsl-imx7.h"
  19 #include "hw/boards.h"
  20 #include "sysemu/sysemu.h"
  21 #include "sysemu/device_tree.h"
  22 #include "qemu/error-report.h"
  23 #include "sysemu/qtest.h"
  24 #include "net/net.h"
  25
  26 typedef struct {
  27     FslIMX7State soc;
  28     MemoryRegion ram;
  29 } MCIMX7Sabre;
  30
  31 static void mcimx7d_sabre_init(MachineState *machine)
  32 {
  33     static struct arm_boot_info boot_info;
  34     MCIMX7Sabre *s = g_new0(MCIMX7Sabre, 1);
  35     Object *soc;
  36     int i;
  37
  38     if (machine->ram_size > FSL_IMX7_MMDC_SIZE) {
  39         error_report("RAM size " RAM_ADDR_FMT " above max supported (%08x)",
  40                      machine->ram_size, FSL_IMX7_MMDC_SIZE);
  41         exit(1);
  42     }
  43
  44     boot_info = (struct arm_boot_info) {
  45         .loader_start = FSL_IMX7_MMDC_ADDR,
  46         .board_id = -1,
  47         .ram_size = machine->ram_size,
  48         .kernel_filename = machine->kernel_filename,
  49         .kernel_cmdline = machine->kernel_cmdline,
  50         .initrd_filename = machine->initrd_filename,
  51         .nb_cpus = smp_cpus,
  52     };
  53
  54     object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX7);
  55     soc = OBJECT(&s->soc);
  56     object_property_add_child(OBJECT(machine), "soc", soc, &error_fatal);
  57     object_property_set_bool(soc, true, "realized", &error_fatal);
  58
  59     memory_region_allocate_system_memory(&s->ram, NULL, "mcimx7d-sabre.ram",
  60                                          machine->ram_size);
  61     memory_region_add_subregion(get_system_memory(),
  62                                 FSL_IMX7_MMDC_ADDR, &s->ram);
  63
  64     for (i = 0; i < FSL_IMX7_NUM_USDHCS; i++) {
  65         BusState *bus;
  66         DeviceState *carddev;
  67         DriveInfo *di;
  68         BlockBackend *blk;
  69
  70         di = drive_get_next(IF_SD);
  71         blk = di ? blk_by_legacy_dinfo(di) : NULL;
  72         bus = qdev_get_child_bus(DEVICE(&s->soc.usdhc[i]), "sd-bus");
  73         carddev = qdev_create(bus, TYPE_SD_CARD);
  74         qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
  75         object_property_set_bool(OBJECT(carddev), true,
  76                                  "realized", &error_fatal);
  77     }
  78
  79     if (!qtest_enabled()) {
  80         arm_load_kernel(&s->soc.cpu[0], &boot_info);
  81     }
  82 }
  83
  84 static void mcimx7d_sabre_machine_init(MachineClass *mc)
  85 {
  86     mc->desc = "Freescale i.MX7 DUAL SABRE (Cortex A7)";
  87     mc->init = mcimx7d_sabre_init;
  88     mc->max_cpus = FSL_IMX7_NUM_CPUS;
  89 }
  90 DEFINE_MACHINE("mcimx7d-sabre", mcimx7d_sabre_machine_init)