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