hw/arm/xlnx-zcu102.c

   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/arm/boot.h"
  22 #include "hw/boards.h"
  23 #include "qemu/error-report.h"
  24 #include "qemu/log.h"
  25 #include "sysemu/device_tree.h"
  26 #include "qom/object.h"
  27 #include "net/can_emu.h"
  28 #include "audio/audio.h"
  29
  30 struct XlnxZCU102 {
  31     MachineState parent_obj;
  32
  33     XlnxZynqMPState soc;
  34
  35     bool secure;
  36     bool virt;
  37
  38     CanBusState *canbus[XLNX_ZYNQMP_NUM_CAN];
  39
  40     struct arm_boot_info binfo;
  41 };
  42
  43 #define TYPE_ZCU102_MACHINE   MACHINE_TYPE_NAME("xlnx-zcu102")
  44 OBJECT_DECLARE_SIMPLE_TYPE(XlnxZCU102, ZCU102_MACHINE)
  45
  46
  47 static bool zcu102_get_secure(Object *obj, Error **errp)
  48 {
  49     XlnxZCU102 *s = ZCU102_MACHINE(obj);
  50
  51     return s->secure;
  52 }
  53
  54 static void zcu102_set_secure(Object *obj, bool value, Error **errp)
  55 {
  56     XlnxZCU102 *s = ZCU102_MACHINE(obj);
  57
  58     s->secure = value;
  59 }
  60
  61 static bool zcu102_get_virt(Object *obj, Error **errp)
  62 {
  63     XlnxZCU102 *s = ZCU102_MACHINE(obj);
  64
  65     return s->virt;
  66 }
  67
  68 static void zcu102_set_virt(Object *obj, bool value, Error **errp)
  69 {
  70     XlnxZCU102 *s = ZCU102_MACHINE(obj);
  71
  72     s->virt = value;
  73 }
  74
  75 static void zcu102_modify_dtb(const struct arm_boot_info *binfo, void *fdt)
  76 {
  77     XlnxZCU102 *s = container_of(binfo, XlnxZCU102, binfo);
  78     bool method_is_hvc;
  79     char **node_path;
  80     const char *r;
  81     int prop_len;
  82     int i;
  83
  84     /* If EL3 is enabled, we keep all firmware nodes active.  */
  85     if (!s->secure) {
  86         node_path = qemu_fdt_node_path(fdt, NULL, "xlnx,zynqmp-firmware",
  87                                        &error_fatal);
  88
  89         for (i = 0; node_path && node_path[i]; i++) {
  90             r = qemu_fdt_getprop(fdt, node_path[i], "method", &prop_len, NULL);
  91             method_is_hvc = r && !strcmp("hvc", r);
  92
  93             /* Allow HVC based firmware if EL2 is enabled.  */
  94             if (method_is_hvc && s->virt) {
  95                 continue;
  96             }
  97             qemu_fdt_setprop_string(fdt, node_path[i], "status", "disabled");
  98         }
  99         g_strfreev(node_path);
 100     }
 101 }
 102
 103 static void bbram_attach_drive(XlnxBBRam *dev)
 104 {
 105     DriveInfo *dinfo;
 106     BlockBackend *blk;
 107
 108     dinfo = drive_get_by_index(IF_PFLASH, 2);
 109     blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
 110     if (blk) {
 111         qdev_prop_set_drive(DEVICE(dev), "drive", blk);
 112     }
 113 }
 114
 115 static void efuse_attach_drive(XlnxEFuse *dev)
 116 {
 117     DriveInfo *dinfo;
 118     BlockBackend *blk;
 119
 120     dinfo = drive_get_by_index(IF_PFLASH, 3);
 121     blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
 122     if (blk) {
 123         qdev_prop_set_drive(DEVICE(dev), "drive", blk);
 124     }
 125 }
 126
 127 static void xlnx_zcu102_init(MachineState *machine)
 128 {
 129     XlnxZCU102 *s = ZCU102_MACHINE(machine);
 130     int i;
 131     uint64_t ram_size = machine->ram_size;
 132
 133     /* Create the memory region to pass to the SoC */
 134     if (ram_size > XLNX_ZYNQMP_MAX_RAM_SIZE) {
 135         error_report("ERROR: RAM size 0x%" PRIx64 " above max supported of "
 136                      "0x%llx", ram_size,
 137                      XLNX_ZYNQMP_MAX_RAM_SIZE);
 138         exit(1);
 139     }
 140
 141     if (ram_size < 0x08000000) {
 142         qemu_log("WARNING: RAM size 0x%" PRIx64 " is small for ZCU102",
 143                  ram_size);
 144     }
 145
 146     object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_XLNX_ZYNQMP);
 147
 148     if (machine->audiodev) {
 149         qdev_prop_set_string(DEVICE(&s->soc.dp), "audiodev", machine->audiodev);
 150     }
 151
 152     object_property_set_link(OBJECT(&s->soc), "ddr-ram", OBJECT(machine->ram),
 153                              &error_abort);
 154     object_property_set_bool(OBJECT(&s->soc), "secure", s->secure,
 155                              &error_fatal);
 156     object_property_set_bool(OBJECT(&s->soc), "virtualization", s->virt,
 157                              &error_fatal);
 158
 159     for (i = 0; i < XLNX_ZYNQMP_NUM_CAN; i++) {
 160         gchar *bus_name = g_strdup_printf("canbus%d", i);
 161
 162         object_property_set_link(OBJECT(&s->soc), bus_name,
 163                                  OBJECT(s->canbus[i]), &error_fatal);
 164         g_free(bus_name);
 165     }
 166
 167     qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);
 168
 169     /* Attach bbram backend, if given */
 170     bbram_attach_drive(&s->soc.bbram);
 171
 172     /* Attach efuse backend, if given */
 173     efuse_attach_drive(&s->soc.efuse);
 174
 175     /* Create and plug in the SD cards */
 176     for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
 177         BusState *bus;
 178         DriveInfo *di = drive_get(IF_SD, 0, i);
 179         BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
 180         DeviceState *carddev;
 181         char *bus_name;
 182
 183         bus_name = g_strdup_printf("sd-bus%d", i);
 184         bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
 185         g_free(bus_name);
 186         if (!bus) {
 187             error_report("No SD bus found for SD card %d", i);
 188             exit(1);
 189         }
 190         carddev = qdev_new(TYPE_SD_CARD);
 191         qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
 192         qdev_realize_and_unref(carddev, bus, &error_fatal);
 193     }
 194
 195     for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
 196         BusState *spi_bus;
 197         DeviceState *flash_dev;
 198         qemu_irq cs_line;
 199         DriveInfo *dinfo = drive_get(IF_MTD, 0, i);
 200         gchar *bus_name = g_strdup_printf("spi%d", i);
 201
 202         spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
 203         g_free(bus_name);
 204
 205         flash_dev = qdev_new("sst25wf080");
 206         if (dinfo) {
 207             qdev_prop_set_drive_err(flash_dev, "drive",
 208                                     blk_by_legacy_dinfo(dinfo), &error_fatal);
 209         }
 210         qdev_prop_set_uint8(flash_dev, "cs", i);
 211         qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
 212
 213         cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
 214
 215         sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi[i]), 1, cs_line);
 216     }
 217
 218     for (i = 0; i < XLNX_ZYNQMP_NUM_QSPI_FLASH; i++) {
 219         BusState *spi_bus;
 220         DeviceState *flash_dev;
 221         qemu_irq cs_line;
 222         DriveInfo *dinfo = drive_get(IF_MTD, 0, XLNX_ZYNQMP_NUM_SPIS + i);
 223         int bus = i / XLNX_ZYNQMP_NUM_QSPI_BUS_CS;
 224         gchar *bus_name = g_strdup_printf("qspi%d", bus);
 225
 226         spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
 227         g_free(bus_name);
 228
 229         flash_dev = qdev_new("n25q512a11");
 230         if (dinfo) {
 231             qdev_prop_set_drive_err(flash_dev, "drive",
 232                                     blk_by_legacy_dinfo(dinfo), &error_fatal);
 233         }
 234         qdev_prop_set_uint8(flash_dev, "cs", i);
 235         qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
 236
 237         cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
 238
 239         sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.qspi), i + 1, cs_line);
 240     }
 241
 242     /* TODO create and connect IDE devices for ide_drive_get() */
 243
 244     s->binfo.ram_size = ram_size;
 245     s->binfo.loader_start = 0;
 246     s->binfo.modify_dtb = zcu102_modify_dtb;
 247     s->binfo.psci_conduit = QEMU_PSCI_CONDUIT_SMC;
 248     arm_load_kernel(s->soc.boot_cpu_ptr, machine, &s->binfo);
 249 }
 250
 251 static void xlnx_zcu102_machine_instance_init(Object *obj)
 252 {
 253     XlnxZCU102 *s = ZCU102_MACHINE(obj);
 254
 255     /* Default to secure mode being disabled */
 256     s->secure = false;
 257     /* Default to virt (EL2) being disabled */
 258     s->virt = false;
 259     object_property_add_link(obj, "canbus0", TYPE_CAN_BUS,
 260                              (Object **)&s->canbus[0],
 261                              object_property_allow_set_link,
 262                              0);
 263
 264     object_property_add_link(obj, "canbus1", TYPE_CAN_BUS,
 265                              (Object **)&s->canbus[1],
 266                              object_property_allow_set_link,
 267                              0);
 268 }
 269
 270 static void xlnx_zcu102_machine_class_init(ObjectClass *oc, void *data)
 271 {
 272     MachineClass *mc = MACHINE_CLASS(oc);
 273
 274     mc->desc = "Xilinx ZynqMP ZCU102 board with 4xA53s and 2xR5Fs based on " \
 275                "the value of smp";
 276     mc->init = xlnx_zcu102_init;
 277     mc->block_default_type = IF_IDE;
 278     mc->units_per_default_bus = 1;
 279     mc->ignore_memory_transaction_failures = true;
 280     mc->max_cpus = XLNX_ZYNQMP_NUM_APU_CPUS + XLNX_ZYNQMP_NUM_RPU_CPUS;
 281     mc->default_cpus = XLNX_ZYNQMP_NUM_APU_CPUS;
 282     mc->default_ram_id = "ddr-ram";
 283
 284     machine_add_audiodev_property(mc);
 285     object_class_property_add_bool(oc, "secure", zcu102_get_secure,
 286                                    zcu102_set_secure);
 287     object_class_property_set_description(oc, "secure",
 288                                           "Set on/off to enable/disable the ARM "
 289                                           "Security Extensions (TrustZone)");
 290
 291     object_class_property_add_bool(oc, "virtualization", zcu102_get_virt,
 292                                    zcu102_set_virt);
 293     object_class_property_set_description(oc, "virtualization",
 294                                           "Set on/off to enable/disable emulating a "
 295                                           "guest CPU which implements the ARM "
 296                                           "Virtualization Extensions");
 297 }
 298
 299 static const TypeInfo xlnx_zcu102_machine_init_typeinfo = {
 300     .name       = TYPE_ZCU102_MACHINE,
 301     .parent     = TYPE_MACHINE,
 302     .class_init = xlnx_zcu102_machine_class_init,
 303     .instance_init = xlnx_zcu102_machine_instance_init,
 304     .instance_size = sizeof(XlnxZCU102),
 305 };
 306
 307 static void xlnx_zcu102_machine_init_register_types(void)
 308 {
 309     type_register_static(&xlnx_zcu102_machine_init_typeinfo);
 310 }
 311
 312 type_init(xlnx_zcu102_machine_init_register_types)