qemu/hw/arm/xlnx-zcu102.c
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   1/*
   2 * Xilinx ZynqMP ZCU102 board
   3 *
   4 * Copyright (C) 2015 Xilinx Inc
   5 * Written by Peter Crosthwaite <peter.crosthwaite@xilinx.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/arm/xlnx-zynqmp.h"
  21#include "hw/boards.h"
  22#include "qemu/error-report.h"
  23#include "qemu/log.h"
  24#include "sysemu/device_tree.h"
  25#include "qom/object.h"
  26#include "net/can_emu.h"
  27
  28struct XlnxZCU102 {
  29    MachineState parent_obj;
  30
  31    XlnxZynqMPState soc;
  32
  33    bool secure;
  34    bool virt;
  35
  36    CanBusState *canbus[XLNX_ZYNQMP_NUM_CAN];
  37
  38    struct arm_boot_info binfo;
  39};
  40
  41#define TYPE_ZCU102_MACHINE   MACHINE_TYPE_NAME("xlnx-zcu102")
  42OBJECT_DECLARE_SIMPLE_TYPE(XlnxZCU102, ZCU102_MACHINE)
  43
  44
  45static bool zcu102_get_secure(Object *obj, Error **errp)
  46{
  47    XlnxZCU102 *s = ZCU102_MACHINE(obj);
  48
  49    return s->secure;
  50}
  51
  52static void zcu102_set_secure(Object *obj, bool value, Error **errp)
  53{
  54    XlnxZCU102 *s = ZCU102_MACHINE(obj);
  55
  56    s->secure = value;
  57}
  58
  59static bool zcu102_get_virt(Object *obj, Error **errp)
  60{
  61    XlnxZCU102 *s = ZCU102_MACHINE(obj);
  62
  63    return s->virt;
  64}
  65
  66static void zcu102_set_virt(Object *obj, bool value, Error **errp)
  67{
  68    XlnxZCU102 *s = ZCU102_MACHINE(obj);
  69
  70    s->virt = value;
  71}
  72
  73static void zcu102_modify_dtb(const struct arm_boot_info *binfo, void *fdt)
  74{
  75    XlnxZCU102 *s = container_of(binfo, XlnxZCU102, binfo);
  76    bool method_is_hvc;
  77    char **node_path;
  78    const char *r;
  79    int prop_len;
  80    int i;
  81
  82    /* If EL3 is enabled, we keep all firmware nodes active.  */
  83    if (!s->secure) {
  84        node_path = qemu_fdt_node_path(fdt, NULL, "xlnx,zynqmp-firmware",
  85                                       &error_fatal);
  86
  87        for (i = 0; node_path && node_path[i]; i++) {
  88            r = qemu_fdt_getprop(fdt, node_path[i], "method", &prop_len, NULL);
  89            method_is_hvc = r && !strcmp("hvc", r);
  90
  91            /* Allow HVC based firmware if EL2 is enabled.  */
  92            if (method_is_hvc && s->virt) {
  93                continue;
  94            }
  95            qemu_fdt_setprop_string(fdt, node_path[i], "status", "disabled");
  96        }
  97        g_strfreev(node_path);
  98    }
  99}
 100
 101static void bbram_attach_drive(XlnxBBRam *dev)
 102{
 103    DriveInfo *dinfo;
 104    BlockBackend *blk;
 105
 106    dinfo = drive_get_by_index(IF_PFLASH, 2);
 107    blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
 108    if (blk) {
 109        qdev_prop_set_drive(DEVICE(dev), "drive", blk);
 110    }
 111}
 112
 113static void efuse_attach_drive(XlnxEFuse *dev)
 114{
 115    DriveInfo *dinfo;
 116    BlockBackend *blk;
 117
 118    dinfo = drive_get_by_index(IF_PFLASH, 3);
 119    blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
 120    if (blk) {
 121        qdev_prop_set_drive(DEVICE(dev), "drive", blk);
 122    }
 123}
 124
 125static void xlnx_zcu102_init(MachineState *machine)
 126{
 127    XlnxZCU102 *s = ZCU102_MACHINE(machine);
 128    int i;
 129    uint64_t ram_size = machine->ram_size;
 130
 131    /* Create the memory region to pass to the SoC */
 132    if (ram_size > XLNX_ZYNQMP_MAX_RAM_SIZE) {
 133        error_report("ERROR: RAM size 0x%" PRIx64 " above max supported of "
 134                     "0x%llx", ram_size,
 135                     XLNX_ZYNQMP_MAX_RAM_SIZE);
 136        exit(1);
 137    }
 138
 139    if (ram_size < 0x08000000) {
 140        qemu_log("WARNING: RAM size 0x%" PRIx64 " is small for ZCU102",
 141                 ram_size);
 142    }
 143
 144    object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_XLNX_ZYNQMP);
 145
 146    object_property_set_link(OBJECT(&s->soc), "ddr-ram", OBJECT(machine->ram),
 147                             &error_abort);
 148    object_property_set_bool(OBJECT(&s->soc), "secure", s->secure,
 149                             &error_fatal);
 150    object_property_set_bool(OBJECT(&s->soc), "virtualization", s->virt,
 151                             &error_fatal);
 152
 153    for (i = 0; i < XLNX_ZYNQMP_NUM_CAN; i++) {
 154        gchar *bus_name = g_strdup_printf("canbus%d", i);
 155
 156        object_property_set_link(OBJECT(&s->soc), bus_name,
 157                                 OBJECT(s->canbus[i]), &error_fatal);
 158        g_free(bus_name);
 159    }
 160
 161    qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);
 162
 163    /* Attach bbram backend, if given */
 164    bbram_attach_drive(&s->soc.bbram);
 165
 166    /* Attach efuse backend, if given */
 167    efuse_attach_drive(&s->soc.efuse);
 168
 169    /* Create and plug in the SD cards */
 170    for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
 171        BusState *bus;
 172        DriveInfo *di = drive_get(IF_SD, 0, i);
 173        BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
 174        DeviceState *carddev;
 175        char *bus_name;
 176
 177        bus_name = g_strdup_printf("sd-bus%d", i);
 178        bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
 179        g_free(bus_name);
 180        if (!bus) {
 181            error_report("No SD bus found for SD card %d", i);
 182            exit(1);
 183        }
 184        carddev = qdev_new(TYPE_SD_CARD);
 185        qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
 186        qdev_realize_and_unref(carddev, bus, &error_fatal);
 187    }
 188
 189    for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
 190        BusState *spi_bus;
 191        DeviceState *flash_dev;
 192        qemu_irq cs_line;
 193        DriveInfo *dinfo = drive_get(IF_MTD, 0, i);
 194        gchar *bus_name = g_strdup_printf("spi%d", i);
 195
 196        spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
 197        g_free(bus_name);
 198
 199        flash_dev = qdev_new("sst25wf080");
 200        if (dinfo) {
 201            qdev_prop_set_drive_err(flash_dev, "drive",
 202                                    blk_by_legacy_dinfo(dinfo), &error_fatal);
 203        }
 204        qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
 205
 206        cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
 207
 208        sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi[i]), 1, cs_line);
 209    }
 210
 211    for (i = 0; i < XLNX_ZYNQMP_NUM_QSPI_FLASH; i++) {
 212        BusState *spi_bus;
 213        DeviceState *flash_dev;
 214        qemu_irq cs_line;
 215        DriveInfo *dinfo = drive_get(IF_MTD, 0, XLNX_ZYNQMP_NUM_SPIS + i);
 216        int bus = i / XLNX_ZYNQMP_NUM_QSPI_BUS_CS;
 217        gchar *bus_name = g_strdup_printf("qspi%d", bus);
 218
 219        spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
 220        g_free(bus_name);
 221
 222        flash_dev = qdev_new("n25q512a11");
 223        if (dinfo) {
 224            qdev_prop_set_drive_err(flash_dev, "drive",
 225                                    blk_by_legacy_dinfo(dinfo), &error_fatal);
 226        }
 227        qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
 228
 229        cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
 230
 231        sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.qspi), i + 1, cs_line);
 232    }
 233
 234    /* TODO create and connect IDE devices for ide_drive_get() */
 235
 236    s->binfo.ram_size = ram_size;
 237    s->binfo.loader_start = 0;
 238    s->binfo.modify_dtb = zcu102_modify_dtb;
 239    s->binfo.psci_conduit = QEMU_PSCI_CONDUIT_SMC;
 240    arm_load_kernel(s->soc.boot_cpu_ptr, machine, &s->binfo);
 241}
 242
 243static void xlnx_zcu102_machine_instance_init(Object *obj)
 244{
 245    XlnxZCU102 *s = ZCU102_MACHINE(obj);
 246
 247    /* Default to secure mode being disabled */
 248    s->secure = false;
 249    /* Default to virt (EL2) being disabled */
 250    s->virt = false;
 251    object_property_add_link(obj, "canbus0", TYPE_CAN_BUS,
 252                             (Object **)&s->canbus[0],
 253                             object_property_allow_set_link,
 254                             0);
 255
 256    object_property_add_link(obj, "canbus1", TYPE_CAN_BUS,
 257                             (Object **)&s->canbus[1],
 258                             object_property_allow_set_link,
 259                             0);
 260}
 261
 262static void xlnx_zcu102_machine_class_init(ObjectClass *oc, void *data)
 263{
 264    MachineClass *mc = MACHINE_CLASS(oc);
 265
 266    mc->desc = "Xilinx ZynqMP ZCU102 board with 4xA53s and 2xR5Fs based on " \
 267               "the value of smp";
 268    mc->init = xlnx_zcu102_init;
 269    mc->block_default_type = IF_IDE;
 270    mc->units_per_default_bus = 1;
 271    mc->ignore_memory_transaction_failures = true;
 272    mc->max_cpus = XLNX_ZYNQMP_NUM_APU_CPUS + XLNX_ZYNQMP_NUM_RPU_CPUS;
 273    mc->default_cpus = XLNX_ZYNQMP_NUM_APU_CPUS;
 274    mc->default_ram_id = "ddr-ram";
 275
 276    object_class_property_add_bool(oc, "secure", zcu102_get_secure,
 277                                   zcu102_set_secure);
 278    object_class_property_set_description(oc, "secure",
 279                                          "Set on/off to enable/disable the ARM "
 280                                          "Security Extensions (TrustZone)");
 281
 282    object_class_property_add_bool(oc, "virtualization", zcu102_get_virt,
 283                                   zcu102_set_virt);
 284    object_class_property_set_description(oc, "virtualization",
 285                                          "Set on/off to enable/disable emulating a "
 286                                          "guest CPU which implements the ARM "
 287                                          "Virtualization Extensions");
 288}
 289
 290static const TypeInfo xlnx_zcu102_machine_init_typeinfo = {
 291    .name       = TYPE_ZCU102_MACHINE,
 292    .parent     = TYPE_MACHINE,
 293    .class_init = xlnx_zcu102_machine_class_init,
 294    .instance_init = xlnx_zcu102_machine_instance_init,
 295    .instance_size = sizeof(XlnxZCU102),
 296};
 297
 298static void xlnx_zcu102_machine_init_register_types(void)
 299{
 300    type_register_static(&xlnx_zcu102_machine_init_typeinfo);
 301}
 302
 303type_init(xlnx_zcu102_machine_init_register_types)
 304