hw/arm/mps2-tz.c

   1 /*
   2  * ARM V2M MPS2 board emulation, trustzone aware FPGA images
   3  *
   4  * Copyright (c) 2017 Linaro Limited
   5  * Written by Peter Maydell
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 or
   9  *  (at your option) any later version.
  10  */
  11
  12 /* The MPS2 and MPS2+ dev boards are FPGA based (the 2+ has a bigger
  13  * FPGA but is otherwise the same as the 2). Since the CPU itself
  14  * and most of the devices are in the FPGA, the details of the board
  15  * as seen by the guest depend significantly on the FPGA image.
  16  * This source file covers the following FPGA images, for TrustZone cores:
  17  *  "mps2-an505" -- Cortex-M33 as documented in ARM Application Note AN505
  18  *  "mps2-an521" -- Dual Cortex-M33 as documented in Application Note AN521
  19  *
  20  * Links to the TRM for the board itself and to the various Application
  21  * Notes which document the FPGA images can be found here:
  22  * https://developer.arm.com/products/system-design/development-boards/fpga-prototyping-boards/mps2
  23  *
  24  * Board TRM:
  25  * http://infocenter.arm.com/help/topic/com.arm.doc.100112_0200_06_en/versatile_express_cortex_m_prototyping_systems_v2m_mps2_and_v2m_mps2plus_technical_reference_100112_0200_06_en.pdf
  26  * Application Note AN505:
  27  * http://infocenter.arm.com/help/topic/com.arm.doc.dai0505b/index.html
  28  * Application Note AN521:
  29  * http://infocenter.arm.com/help/topic/com.arm.doc.dai0521c/index.html
  30  *
  31  * The AN505 defers to the Cortex-M33 processor ARMv8M IoT Kit FVP User Guide
  32  * (ARM ECM0601256) for the details of some of the device layout:
  33  *   http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ecm0601256/index.html
  34  * Similarly, the AN521 uses the SSE-200, and the SSE-200 TRM defines
  35  * most of the device layout:
  36  *  http://infocenter.arm.com/help/topic/com.arm.doc.101104_0100_00_en/corelink_sse200_subsystem_for_embedded_technical_reference_manual_101104_0100_00_en.pdf
  37  *
  38  */
  39
  40 #include "qemu/osdep.h"
  41 #include "qemu/units.h"
  42 #include "qemu/cutils.h"
  43 #include "qapi/error.h"
  44 #include "qemu/error-report.h"
  45 #include "hw/arm/boot.h"
  46 #include "hw/arm/armv7m.h"
  47 #include "hw/or-irq.h"
  48 #include "hw/boards.h"
  49 #include "exec/address-spaces.h"
  50 #include "sysemu/sysemu.h"
  51 #include "hw/misc/unimp.h"
  52 #include "hw/char/cmsdk-apb-uart.h"
  53 #include "hw/timer/cmsdk-apb-timer.h"
  54 #include "hw/misc/mps2-scc.h"
  55 #include "hw/misc/mps2-fpgaio.h"
  56 #include "hw/misc/tz-mpc.h"
  57 #include "hw/misc/tz-msc.h"
  58 #include "hw/arm/armsse.h"
  59 #include "hw/dma/pl080.h"
  60 #include "hw/ssi/pl022.h"
  61 #include "hw/net/lan9118.h"
  62 #include "net/net.h"
  63 #include "hw/core/split-irq.h"
  64
  65 #define MPS2TZ_NUMIRQ 92
  66
  67 typedef enum MPS2TZFPGAType {
  68     FPGA_AN505,
  69     FPGA_AN521,
  70 } MPS2TZFPGAType;
  71
  72 typedef struct {
  73     MachineClass parent;
  74     MPS2TZFPGAType fpga_type;
  75     uint32_t scc_id;
  76     const char *armsse_type;
  77 } MPS2TZMachineClass;
  78
  79 typedef struct {
  80     MachineState parent;
  81
  82     ARMSSE iotkit;
  83     MemoryRegion ssram[3];
  84     MemoryRegion ssram1_m;
  85     MPS2SCC scc;
  86     MPS2FPGAIO fpgaio;
  87     TZPPC ppc[5];
  88     TZMPC ssram_mpc[3];
  89     PL022State spi[5];
  90     UnimplementedDeviceState i2c[4];
  91     UnimplementedDeviceState i2s_audio;
  92     UnimplementedDeviceState gpio[4];
  93     UnimplementedDeviceState gfx;
  94     PL080State dma[4];
  95     TZMSC msc[4];
  96     CMSDKAPBUART uart[5];
  97     SplitIRQ sec_resp_splitter;
  98     qemu_or_irq uart_irq_orgate;
  99     DeviceState *lan9118;
 100     SplitIRQ cpu_irq_splitter[MPS2TZ_NUMIRQ];
 101 } MPS2TZMachineState;
 102
 103 #define TYPE_MPS2TZ_MACHINE "mps2tz"
 104 #define TYPE_MPS2TZ_AN505_MACHINE MACHINE_TYPE_NAME("mps2-an505")
 105 #define TYPE_MPS2TZ_AN521_MACHINE MACHINE_TYPE_NAME("mps2-an521")
 106
 107 #define MPS2TZ_MACHINE(obj) \
 108     OBJECT_CHECK(MPS2TZMachineState, obj, TYPE_MPS2TZ_MACHINE)
 109 #define MPS2TZ_MACHINE_GET_CLASS(obj) \
 110     OBJECT_GET_CLASS(MPS2TZMachineClass, obj, TYPE_MPS2TZ_MACHINE)
 111 #define MPS2TZ_MACHINE_CLASS(klass) \
 112     OBJECT_CLASS_CHECK(MPS2TZMachineClass, klass, TYPE_MPS2TZ_MACHINE)
 113
 114 /* Main SYSCLK frequency in Hz */
 115 #define SYSCLK_FRQ 20000000
 116
 117 /* Create an alias of an entire original MemoryRegion @orig
 118  * located at @base in the memory map.
 119  */
 120 static void make_ram_alias(MemoryRegion *mr, const char *name,
 121                            MemoryRegion *orig, hwaddr base)
 122 {
 123     memory_region_init_alias(mr, NULL, name, orig, 0,
 124                              memory_region_size(orig));
 125     memory_region_add_subregion(get_system_memory(), base, mr);
 126 }
 127
 128 static qemu_irq get_sse_irq_in(MPS2TZMachineState *mms, int irqno)
 129 {
 130     /* Return a qemu_irq which will signal IRQ n to all CPUs in the SSE. */
 131     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
 132
 133     assert(irqno < MPS2TZ_NUMIRQ);
 134
 135     switch (mmc->fpga_type) {
 136     case FPGA_AN505:
 137         return qdev_get_gpio_in_named(DEVICE(&mms->iotkit), "EXP_IRQ", irqno);
 138     case FPGA_AN521:
 139         return qdev_get_gpio_in(DEVICE(&mms->cpu_irq_splitter[irqno]), 0);
 140     default:
 141         g_assert_not_reached();
 142     }
 143 }
 144
 145 /* Most of the devices in the AN505 FPGA image sit behind
 146  * Peripheral Protection Controllers. These data structures
 147  * define the layout of which devices sit behind which PPCs.
 148  * The devfn for each port is a function which creates, configures
 149  * and initializes the device, returning the MemoryRegion which
 150  * needs to be plugged into the downstream end of the PPC port.
 151  */
 152 typedef MemoryRegion *MakeDevFn(MPS2TZMachineState *mms, void *opaque,
 153                                 const char *name, hwaddr size);
 154
 155 typedef struct PPCPortInfo {
 156     const char *name;
 157     MakeDevFn *devfn;
 158     void *opaque;
 159     hwaddr addr;
 160     hwaddr size;
 161 } PPCPortInfo;
 162
 163 typedef struct PPCInfo {
 164     const char *name;
 165     PPCPortInfo ports[TZ_NUM_PORTS];
 166 } PPCInfo;
 167
 168 static MemoryRegion *make_unimp_dev(MPS2TZMachineState *mms,
 169                                        void *opaque,
 170                                        const char *name, hwaddr size)
 171 {
 172     /* Initialize, configure and realize a TYPE_UNIMPLEMENTED_DEVICE,
 173      * and return a pointer to its MemoryRegion.
 174      */
 175     UnimplementedDeviceState *uds = opaque;
 176
 177     sysbus_init_child_obj(OBJECT(mms), name, uds,
 178                           sizeof(UnimplementedDeviceState),
 179                           TYPE_UNIMPLEMENTED_DEVICE);
 180     qdev_prop_set_string(DEVICE(uds), "name", name);
 181     qdev_prop_set_uint64(DEVICE(uds), "size", size);
 182     object_property_set_bool(OBJECT(uds), true, "realized", &error_fatal);
 183     return sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0);
 184 }
 185
 186 static MemoryRegion *make_uart(MPS2TZMachineState *mms, void *opaque,
 187                                const char *name, hwaddr size)
 188 {
 189     CMSDKAPBUART *uart = opaque;
 190     int i = uart - &mms->uart[0];
 191     int rxirqno = i * 2;
 192     int txirqno = i * 2 + 1;
 193     int combirqno = i + 10;
 194     SysBusDevice *s;
 195     DeviceState *orgate_dev = DEVICE(&mms->uart_irq_orgate);
 196
 197     sysbus_init_child_obj(OBJECT(mms), name, uart, sizeof(mms->uart[0]),
 198                           TYPE_CMSDK_APB_UART);
 199     qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i));
 200     qdev_prop_set_uint32(DEVICE(uart), "pclk-frq", SYSCLK_FRQ);
 201     object_property_set_bool(OBJECT(uart), true, "realized", &error_fatal);
 202     s = SYS_BUS_DEVICE(uart);
 203     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, txirqno));
 204     sysbus_connect_irq(s, 1, get_sse_irq_in(mms, rxirqno));
 205     sysbus_connect_irq(s, 2, qdev_get_gpio_in(orgate_dev, i * 2));
 206     sysbus_connect_irq(s, 3, qdev_get_gpio_in(orgate_dev, i * 2 + 1));
 207     sysbus_connect_irq(s, 4, get_sse_irq_in(mms, combirqno));
 208     return sysbus_mmio_get_region(SYS_BUS_DEVICE(uart), 0);
 209 }
 210
 211 static MemoryRegion *make_scc(MPS2TZMachineState *mms, void *opaque,
 212                               const char *name, hwaddr size)
 213 {
 214     MPS2SCC *scc = opaque;
 215     DeviceState *sccdev;
 216     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
 217
 218     sysbus_init_child_obj(OBJECT(mms), "scc", scc,
 219                           sizeof(mms->scc), TYPE_MPS2_SCC);
 220     sccdev = DEVICE(scc);
 221     qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2);
 222     qdev_prop_set_uint32(sccdev, "scc-aid", 0x00200008);
 223     qdev_prop_set_uint32(sccdev, "scc-id", mmc->scc_id);
 224     object_property_set_bool(OBJECT(scc), true, "realized", &error_fatal);
 225     return sysbus_mmio_get_region(SYS_BUS_DEVICE(sccdev), 0);
 226 }
 227
 228 static MemoryRegion *make_fpgaio(MPS2TZMachineState *mms, void *opaque,
 229                                  const char *name, hwaddr size)
 230 {
 231     MPS2FPGAIO *fpgaio = opaque;
 232
 233     sysbus_init_child_obj(OBJECT(mms), "fpgaio", fpgaio,
 234                           sizeof(mms->fpgaio), TYPE_MPS2_FPGAIO);
 235     object_property_set_bool(OBJECT(fpgaio), true, "realized", &error_fatal);
 236     return sysbus_mmio_get_region(SYS_BUS_DEVICE(fpgaio), 0);
 237 }
 238
 239 static MemoryRegion *make_eth_dev(MPS2TZMachineState *mms, void *opaque,
 240                                   const char *name, hwaddr size)
 241 {
 242     SysBusDevice *s;
 243     NICInfo *nd = &nd_table[0];
 244
 245     /* In hardware this is a LAN9220; the LAN9118 is software compatible
 246      * except that it doesn't support the checksum-offload feature.
 247      */
 248     qemu_check_nic_model(nd, "lan9118");
 249     mms->lan9118 = qdev_create(NULL, TYPE_LAN9118);
 250     qdev_set_nic_properties(mms->lan9118, nd);
 251     qdev_init_nofail(mms->lan9118);
 252
 253     s = SYS_BUS_DEVICE(mms->lan9118);
 254     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, 16));
 255     return sysbus_mmio_get_region(s, 0);
 256 }
 257
 258 static MemoryRegion *make_mpc(MPS2TZMachineState *mms, void *opaque,
 259                               const char *name, hwaddr size)
 260 {
 261     TZMPC *mpc = opaque;
 262     int i = mpc - &mms->ssram_mpc[0];
 263     MemoryRegion *ssram = &mms->ssram[i];
 264     MemoryRegion *upstream;
 265     char *mpcname = g_strdup_printf("%s-mpc", name);
 266     static uint32_t ramsize[] = { 0x00400000, 0x00200000, 0x00200000 };
 267     static uint32_t rambase[] = { 0x00000000, 0x28000000, 0x28200000 };
 268
 269     memory_region_init_ram(ssram, NULL, name, ramsize[i], &error_fatal);
 270
 271     sysbus_init_child_obj(OBJECT(mms), mpcname, mpc, sizeof(mms->ssram_mpc[0]),
 272                           TYPE_TZ_MPC);
 273     object_property_set_link(OBJECT(mpc), OBJECT(ssram),
 274                              "downstream", &error_fatal);
 275     object_property_set_bool(OBJECT(mpc), true, "realized", &error_fatal);
 276     /* Map the upstream end of the MPC into system memory */
 277     upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 1);
 278     memory_region_add_subregion(get_system_memory(), rambase[i], upstream);
 279     /* and connect its interrupt to the IoTKit */
 280     qdev_connect_gpio_out_named(DEVICE(mpc), "irq", 0,
 281                                 qdev_get_gpio_in_named(DEVICE(&mms->iotkit),
 282                                                        "mpcexp_status", i));
 283
 284     /* The first SSRAM is a special case as it has an alias; accesses to
 285      * the alias region at 0x00400000 must also go to the MPC upstream.
 286      */
 287     if (i == 0) {
 288         make_ram_alias(&mms->ssram1_m, "mps.ssram1_m", upstream, 0x00400000);
 289     }
 290
 291     g_free(mpcname);
 292     /* Return the register interface MR for our caller to map behind the PPC */
 293     return sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 0);
 294 }
 295
 296 static MemoryRegion *make_dma(MPS2TZMachineState *mms, void *opaque,
 297                               const char *name, hwaddr size)
 298 {
 299     PL080State *dma = opaque;
 300     int i = dma - &mms->dma[0];
 301     SysBusDevice *s;
 302     char *mscname = g_strdup_printf("%s-msc", name);
 303     TZMSC *msc = &mms->msc[i];
 304     DeviceState *iotkitdev = DEVICE(&mms->iotkit);
 305     MemoryRegion *msc_upstream;
 306     MemoryRegion *msc_downstream;
 307
 308     /*
 309      * Each DMA device is a PL081 whose transaction master interface
 310      * is guarded by a Master Security Controller. The downstream end of
 311      * the MSC connects to the IoTKit AHB Slave Expansion port, so the
 312      * DMA devices can see all devices and memory that the CPU does.
 313      */
 314     sysbus_init_child_obj(OBJECT(mms), mscname, msc, sizeof(*msc), TYPE_TZ_MSC);
 315     msc_downstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(&mms->iotkit), 0);
 316     object_property_set_link(OBJECT(msc), OBJECT(msc_downstream),
 317                              "downstream", &error_fatal);
 318     object_property_set_link(OBJECT(msc), OBJECT(mms),
 319                              "idau", &error_fatal);
 320     object_property_set_bool(OBJECT(msc), true, "realized", &error_fatal);
 321
 322     qdev_connect_gpio_out_named(DEVICE(msc), "irq", 0,
 323                                 qdev_get_gpio_in_named(iotkitdev,
 324                                                        "mscexp_status", i));
 325     qdev_connect_gpio_out_named(iotkitdev, "mscexp_clear", i,
 326                                 qdev_get_gpio_in_named(DEVICE(msc),
 327                                                        "irq_clear", 0));
 328     qdev_connect_gpio_out_named(iotkitdev, "mscexp_ns", i,
 329                                 qdev_get_gpio_in_named(DEVICE(msc),
 330                                                        "cfg_nonsec", 0));
 331     qdev_connect_gpio_out(DEVICE(&mms->sec_resp_splitter),
 332                           ARRAY_SIZE(mms->ppc) + i,
 333                           qdev_get_gpio_in_named(DEVICE(msc),
 334                                                  "cfg_sec_resp", 0));
 335     msc_upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(msc), 0);
 336
 337     sysbus_init_child_obj(OBJECT(mms), name, dma, sizeof(*dma), TYPE_PL081);
 338     object_property_set_link(OBJECT(dma), OBJECT(msc_upstream),
 339                              "downstream", &error_fatal);
 340     object_property_set_bool(OBJECT(dma), true, "realized", &error_fatal);
 341
 342     s = SYS_BUS_DEVICE(dma);
 343     /* Wire up DMACINTR, DMACINTERR, DMACINTTC */
 344     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, 58 + i * 3));
 345     sysbus_connect_irq(s, 1, get_sse_irq_in(mms, 56 + i * 3));
 346     sysbus_connect_irq(s, 2, get_sse_irq_in(mms, 57 + i * 3));
 347
 348     g_free(mscname);
 349     return sysbus_mmio_get_region(s, 0);
 350 }
 351
 352 static MemoryRegion *make_spi(MPS2TZMachineState *mms, void *opaque,
 353                               const char *name, hwaddr size)
 354 {
 355     /*
 356      * The AN505 has five PL022 SPI controllers.
 357      * One of these should have the LCD controller behind it; the others
 358      * are connected only to the FPGA's "general purpose SPI connector"
 359      * or "shield" expansion connectors.
 360      * Note that if we do implement devices behind SPI, the chip select
 361      * lines are set via the "MISC" register in the MPS2 FPGAIO device.
 362      */
 363     PL022State *spi = opaque;
 364     int i = spi - &mms->spi[0];
 365     SysBusDevice *s;
 366
 367     sysbus_init_child_obj(OBJECT(mms), name, spi, sizeof(mms->spi[0]),
 368                           TYPE_PL022);
 369     object_property_set_bool(OBJECT(spi), true, "realized", &error_fatal);
 370     s = SYS_BUS_DEVICE(spi);
 371     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, 51 + i));
 372     return sysbus_mmio_get_region(s, 0);
 373 }
 374
 375 static void mps2tz_common_init(MachineState *machine)
 376 {
 377     MPS2TZMachineState *mms = MPS2TZ_MACHINE(machine);
 378     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
 379     MachineClass *mc = MACHINE_GET_CLASS(machine);
 380     MemoryRegion *system_memory = get_system_memory();
 381     DeviceState *iotkitdev;
 382     DeviceState *dev_splitter;
 383     int i;
 384
 385     if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
 386         error_report("This board can only be used with CPU %s",
 387                      mc->default_cpu_type);
 388         exit(1);
 389     }
 390
 391     if (machine->ram_size != mc->default_ram_size) {
 392         char *sz = size_to_str(mc->default_ram_size);
 393         error_report("Invalid RAM size, should be %s", sz);
 394         g_free(sz);
 395         exit(EXIT_FAILURE);
 396     }
 397
 398     sysbus_init_child_obj(OBJECT(machine), TYPE_IOTKIT, &mms->iotkit,
 399                           sizeof(mms->iotkit), mmc->armsse_type);
 400     iotkitdev = DEVICE(&mms->iotkit);
 401     object_property_set_link(OBJECT(&mms->iotkit), OBJECT(system_memory),
 402                              "memory", &error_abort);
 403     qdev_prop_set_uint32(iotkitdev, "EXP_NUMIRQ", MPS2TZ_NUMIRQ);
 404     qdev_prop_set_uint32(iotkitdev, "MAINCLK", SYSCLK_FRQ);
 405     object_property_set_bool(OBJECT(&mms->iotkit), true, "realized",
 406                              &error_fatal);
 407
 408     /*
 409      * The AN521 needs us to create splitters to feed the IRQ inputs
 410      * for each CPU in the SSE-200 from each device in the board.
 411      */
 412     if (mmc->fpga_type == FPGA_AN521) {
 413         for (i = 0; i < MPS2TZ_NUMIRQ; i++) {
 414             char *name = g_strdup_printf("mps2-irq-splitter%d", i);
 415             SplitIRQ *splitter = &mms->cpu_irq_splitter[i];
 416
 417             object_initialize_child(OBJECT(machine), name,
 418                                     splitter, sizeof(*splitter),
 419                                     TYPE_SPLIT_IRQ, &error_fatal, NULL);
 420             g_free(name);
 421
 422             object_property_set_int(OBJECT(splitter), 2, "num-lines",
 423                                     &error_fatal);
 424             object_property_set_bool(OBJECT(splitter), true, "realized",
 425                                      &error_fatal);
 426             qdev_connect_gpio_out(DEVICE(splitter), 0,
 427                                   qdev_get_gpio_in_named(DEVICE(&mms->iotkit),
 428                                                          "EXP_IRQ", i));
 429             qdev_connect_gpio_out(DEVICE(splitter), 1,
 430                                   qdev_get_gpio_in_named(DEVICE(&mms->iotkit),
 431                                                          "EXP_CPU1_IRQ", i));
 432         }
 433     }
 434
 435     /* The sec_resp_cfg output from the IoTKit must be split into multiple
 436      * lines, one for each of the PPCs we create here, plus one per MSC.
 437      */
 438     object_initialize_child(OBJECT(machine), "sec-resp-splitter",
 439                             &mms->sec_resp_splitter,
 440                             sizeof(mms->sec_resp_splitter),
 441                             TYPE_SPLIT_IRQ, &error_abort, NULL);
 442     object_property_set_int(OBJECT(&mms->sec_resp_splitter),
 443                             ARRAY_SIZE(mms->ppc) + ARRAY_SIZE(mms->msc),
 444                             "num-lines", &error_fatal);
 445     object_property_set_bool(OBJECT(&mms->sec_resp_splitter), true,
 446                              "realized", &error_fatal);
 447     dev_splitter = DEVICE(&mms->sec_resp_splitter);
 448     qdev_connect_gpio_out_named(iotkitdev, "sec_resp_cfg", 0,
 449                                 qdev_get_gpio_in(dev_splitter, 0));
 450
 451     /* The IoTKit sets up much of the memory layout, including
 452      * the aliases between secure and non-secure regions in the
 453      * address space. The FPGA itself contains:
 454      *
 455      * 0x00000000..0x003fffff  SSRAM1
 456      * 0x00400000..0x007fffff  alias of SSRAM1
 457      * 0x28000000..0x283fffff  4MB SSRAM2 + SSRAM3
 458      * 0x40100000..0x4fffffff  AHB Master Expansion 1 interface devices
 459      * 0x80000000..0x80ffffff  16MB PSRAM
 460      */
 461
 462     /* The FPGA images have an odd combination of different RAMs,
 463      * because in hardware they are different implementations and
 464      * connected to different buses, giving varying performance/size
 465      * tradeoffs. For QEMU they're all just RAM, though. We arbitrarily
 466      * call the 16MB our "system memory", as it's the largest lump.
 467      */
 468     memory_region_add_subregion(system_memory, 0x80000000, machine->ram);
 469
 470     /* The overflow IRQs for all UARTs are ORed together.
 471      * Tx, Rx and "combined" IRQs are sent to the NVIC separately.
 472      * Create the OR gate for this.
 473      */
 474     object_initialize_child(OBJECT(mms), "uart-irq-orgate",
 475                             &mms->uart_irq_orgate, sizeof(mms->uart_irq_orgate),
 476                             TYPE_OR_IRQ, &error_abort, NULL);
 477     object_property_set_int(OBJECT(&mms->uart_irq_orgate), 10, "num-lines",
 478                             &error_fatal);
 479     object_property_set_bool(OBJECT(&mms->uart_irq_orgate), true,
 480                              "realized", &error_fatal);
 481     qdev_connect_gpio_out(DEVICE(&mms->uart_irq_orgate), 0,
 482                           get_sse_irq_in(mms, 15));
 483
 484     /* Most of the devices in the FPGA are behind Peripheral Protection
 485      * Controllers. The required order for initializing things is:
 486      *  + initialize the PPC
 487      *  + initialize, configure and realize downstream devices
 488      *  + connect downstream device MemoryRegions to the PPC
 489      *  + realize the PPC
 490      *  + map the PPC's MemoryRegions to the places in the address map
 491      *    where the downstream devices should appear
 492      *  + wire up the PPC's control lines to the IoTKit object
 493      */
 494
 495     const PPCInfo ppcs[] = { {
 496             .name = "apb_ppcexp0",
 497             .ports = {
 498                 { "ssram-0", make_mpc, &mms->ssram_mpc[0], 0x58007000, 0x1000 },
 499                 { "ssram-1", make_mpc, &mms->ssram_mpc[1], 0x58008000, 0x1000 },
 500                 { "ssram-2", make_mpc, &mms->ssram_mpc[2], 0x58009000, 0x1000 },
 501             },
 502         }, {
 503             .name = "apb_ppcexp1",
 504             .ports = {
 505                 { "spi0", make_spi, &mms->spi[0], 0x40205000, 0x1000 },
 506                 { "spi1", make_spi, &mms->spi[1], 0x40206000, 0x1000 },
 507                 { "spi2", make_spi, &mms->spi[2], 0x40209000, 0x1000 },
 508                 { "spi3", make_spi, &mms->spi[3], 0x4020a000, 0x1000 },
 509                 { "spi4", make_spi, &mms->spi[4], 0x4020b000, 0x1000 },
 510                 { "uart0", make_uart, &mms->uart[0], 0x40200000, 0x1000 },
 511                 { "uart1", make_uart, &mms->uart[1], 0x40201000, 0x1000 },
 512                 { "uart2", make_uart, &mms->uart[2], 0x40202000, 0x1000 },
 513                 { "uart3", make_uart, &mms->uart[3], 0x40203000, 0x1000 },
 514                 { "uart4", make_uart, &mms->uart[4], 0x40204000, 0x1000 },
 515                 { "i2c0", make_unimp_dev, &mms->i2c[0], 0x40207000, 0x1000 },
 516                 { "i2c1", make_unimp_dev, &mms->i2c[1], 0x40208000, 0x1000 },
 517                 { "i2c2", make_unimp_dev, &mms->i2c[2], 0x4020c000, 0x1000 },
 518                 { "i2c3", make_unimp_dev, &mms->i2c[3], 0x4020d000, 0x1000 },
 519             },
 520         }, {
 521             .name = "apb_ppcexp2",
 522             .ports = {
 523                 { "scc", make_scc, &mms->scc, 0x40300000, 0x1000 },
 524                 { "i2s-audio", make_unimp_dev, &mms->i2s_audio,
 525                   0x40301000, 0x1000 },
 526                 { "fpgaio", make_fpgaio, &mms->fpgaio, 0x40302000, 0x1000 },
 527             },
 528         }, {
 529             .name = "ahb_ppcexp0",
 530             .ports = {
 531                 { "gfx", make_unimp_dev, &mms->gfx, 0x41000000, 0x140000 },
 532                 { "gpio0", make_unimp_dev, &mms->gpio[0], 0x40100000, 0x1000 },
 533                 { "gpio1", make_unimp_dev, &mms->gpio[1], 0x40101000, 0x1000 },
 534                 { "gpio2", make_unimp_dev, &mms->gpio[2], 0x40102000, 0x1000 },
 535                 { "gpio3", make_unimp_dev, &mms->gpio[3], 0x40103000, 0x1000 },
 536                 { "eth", make_eth_dev, NULL, 0x42000000, 0x100000 },
 537             },
 538         }, {
 539             .name = "ahb_ppcexp1",
 540             .ports = {
 541                 { "dma0", make_dma, &mms->dma[0], 0x40110000, 0x1000 },
 542                 { "dma1", make_dma, &mms->dma[1], 0x40111000, 0x1000 },
 543                 { "dma2", make_dma, &mms->dma[2], 0x40112000, 0x1000 },
 544                 { "dma3", make_dma, &mms->dma[3], 0x40113000, 0x1000 },
 545             },
 546         },
 547     };
 548
 549     for (i = 0; i < ARRAY_SIZE(ppcs); i++) {
 550         const PPCInfo *ppcinfo = &ppcs[i];
 551         TZPPC *ppc = &mms->ppc[i];
 552         DeviceState *ppcdev;
 553         int port;
 554         char *gpioname;
 555
 556         sysbus_init_child_obj(OBJECT(machine), ppcinfo->name, ppc,
 557                               sizeof(TZPPC), TYPE_TZ_PPC);
 558         ppcdev = DEVICE(ppc);
 559
 560         for (port = 0; port < TZ_NUM_PORTS; port++) {
 561             const PPCPortInfo *pinfo = &ppcinfo->ports[port];
 562             MemoryRegion *mr;
 563             char *portname;
 564
 565             if (!pinfo->devfn) {
 566                 continue;
 567             }
 568
 569             mr = pinfo->devfn(mms, pinfo->opaque, pinfo->name, pinfo->size);
 570             portname = g_strdup_printf("port[%d]", port);
 571             object_property_set_link(OBJECT(ppc), OBJECT(mr),
 572                                      portname, &error_fatal);
 573             g_free(portname);
 574         }
 575
 576         object_property_set_bool(OBJECT(ppc), true, "realized", &error_fatal);
 577
 578         for (port = 0; port < TZ_NUM_PORTS; port++) {
 579             const PPCPortInfo *pinfo = &ppcinfo->ports[port];
 580
 581             if (!pinfo->devfn) {
 582                 continue;
 583             }
 584             sysbus_mmio_map(SYS_BUS_DEVICE(ppc), port, pinfo->addr);
 585
 586             gpioname = g_strdup_printf("%s_nonsec", ppcinfo->name);
 587             qdev_connect_gpio_out_named(iotkitdev, gpioname, port,
 588                                         qdev_get_gpio_in_named(ppcdev,
 589                                                                "cfg_nonsec",
 590                                                                port));
 591             g_free(gpioname);
 592             gpioname = g_strdup_printf("%s_ap", ppcinfo->name);
 593             qdev_connect_gpio_out_named(iotkitdev, gpioname, port,
 594                                         qdev_get_gpio_in_named(ppcdev,
 595                                                                "cfg_ap", port));
 596             g_free(gpioname);
 597         }
 598
 599         gpioname = g_strdup_printf("%s_irq_enable", ppcinfo->name);
 600         qdev_connect_gpio_out_named(iotkitdev, gpioname, 0,
 601                                     qdev_get_gpio_in_named(ppcdev,
 602                                                            "irq_enable", 0));
 603         g_free(gpioname);
 604         gpioname = g_strdup_printf("%s_irq_clear", ppcinfo->name);
 605         qdev_connect_gpio_out_named(iotkitdev, gpioname, 0,
 606                                     qdev_get_gpio_in_named(ppcdev,
 607                                                            "irq_clear", 0));
 608         g_free(gpioname);
 609         gpioname = g_strdup_printf("%s_irq_status", ppcinfo->name);
 610         qdev_connect_gpio_out_named(ppcdev, "irq", 0,
 611                                     qdev_get_gpio_in_named(iotkitdev,
 612                                                            gpioname, 0));
 613         g_free(gpioname);
 614
 615         qdev_connect_gpio_out(dev_splitter, i,
 616                               qdev_get_gpio_in_named(ppcdev,
 617                                                      "cfg_sec_resp", 0));
 618     }
 619
 620     create_unimplemented_device("FPGA NS PC", 0x48007000, 0x1000);
 621
 622     armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename, 0x400000);
 623 }
 624
 625 static void mps2_tz_idau_check(IDAUInterface *ii, uint32_t address,
 626                                int *iregion, bool *exempt, bool *ns, bool *nsc)
 627 {
 628     /*
 629      * The MPS2 TZ FPGA images have IDAUs in them which are connected to
 630      * the Master Security Controllers. Thes have the same logic as
 631      * is used by the IoTKit for the IDAU connected to the CPU, except
 632      * that MSCs don't care about the NSC attribute.
 633      */
 634     int region = extract32(address, 28, 4);
 635
 636     *ns = !(region & 1);
 637     *nsc = false;
 638     /* 0xe0000000..0xe00fffff and 0xf0000000..0xf00fffff are exempt */
 639     *exempt = (address & 0xeff00000) == 0xe0000000;
 640     *iregion = region;
 641 }
 642
 643 static void mps2tz_class_init(ObjectClass *oc, void *data)
 644 {
 645     MachineClass *mc = MACHINE_CLASS(oc);
 646     IDAUInterfaceClass *iic = IDAU_INTERFACE_CLASS(oc);
 647
 648     mc->init = mps2tz_common_init;
 649     iic->check = mps2_tz_idau_check;
 650     mc->default_ram_size = 16 * MiB;
 651     mc->default_ram_id = "mps.ram";
 652 }
 653
 654 static void mps2tz_an505_class_init(ObjectClass *oc, void *data)
 655 {
 656     MachineClass *mc = MACHINE_CLASS(oc);
 657     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc);
 658
 659     mc->desc = "ARM MPS2 with AN505 FPGA image for Cortex-M33";
 660     mc->default_cpus = 1;
 661     mc->min_cpus = mc->default_cpus;
 662     mc->max_cpus = mc->default_cpus;
 663     mmc->fpga_type = FPGA_AN505;
 664     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33");
 665     mmc->scc_id = 0x41045050;
 666     mmc->armsse_type = TYPE_IOTKIT;
 667 }
 668
 669 static void mps2tz_an521_class_init(ObjectClass *oc, void *data)
 670 {
 671     MachineClass *mc = MACHINE_CLASS(oc);
 672     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc);
 673
 674     mc->desc = "ARM MPS2 with AN521 FPGA image for dual Cortex-M33";
 675     mc->default_cpus = 2;
 676     mc->min_cpus = mc->default_cpus;
 677     mc->max_cpus = mc->default_cpus;
 678     mmc->fpga_type = FPGA_AN521;
 679     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33");
 680     mmc->scc_id = 0x41045210;
 681     mmc->armsse_type = TYPE_SSE200;
 682 }
 683
 684 static const TypeInfo mps2tz_info = {
 685     .name = TYPE_MPS2TZ_MACHINE,
 686     .parent = TYPE_MACHINE,
 687     .abstract = true,
 688     .instance_size = sizeof(MPS2TZMachineState),
 689     .class_size = sizeof(MPS2TZMachineClass),
 690     .class_init = mps2tz_class_init,
 691     .interfaces = (InterfaceInfo[]) {
 692         { TYPE_IDAU_INTERFACE },
 693         { }
 694     },
 695 };
 696
 697 static const TypeInfo mps2tz_an505_info = {
 698     .name = TYPE_MPS2TZ_AN505_MACHINE,
 699     .parent = TYPE_MPS2TZ_MACHINE,
 700     .class_init = mps2tz_an505_class_init,
 701 };
 702
 703 static const TypeInfo mps2tz_an521_info = {
 704     .name = TYPE_MPS2TZ_AN521_MACHINE,
 705     .parent = TYPE_MPS2TZ_MACHINE,
 706     .class_init = mps2tz_an521_class_init,
 707 };
 708
 709 static void mps2tz_machine_init(void)
 710 {
 711     type_register_static(&mps2tz_info);
 712     type_register_static(&mps2tz_an505_info);
 713     type_register_static(&mps2tz_an521_info);
 714 }
 715
 716 type_init(mps2tz_machine_init);