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/i2c/arm_sbcon_i2c.h"
  62 #include "hw/net/lan9118.h"
  63 #include "net/net.h"
  64 #include "hw/core/split-irq.h"
  65 #include "hw/qdev-clock.h"
  66 #include "qom/object.h"
  67
  68 #define MPS2TZ_NUMIRQ 92
  69
  70 typedef enum MPS2TZFPGAType {
  71     FPGA_AN505,
  72     FPGA_AN521,
  73 } MPS2TZFPGAType;
  74
  75 struct MPS2TZMachineClass {
  76     MachineClass parent;
  77     MPS2TZFPGAType fpga_type;
  78     uint32_t scc_id;
  79     uint32_t sysclk_frq; /* Main SYSCLK frequency in Hz */
  80     const char *armsse_type;
  81 };
  82
  83 struct MPS2TZMachineState {
  84     MachineState parent;
  85
  86     ARMSSE iotkit;
  87     MemoryRegion ssram[3];
  88     MemoryRegion ssram1_m;
  89     MPS2SCC scc;
  90     MPS2FPGAIO fpgaio;
  91     TZPPC ppc[5];
  92     TZMPC ssram_mpc[3];
  93     PL022State spi[5];
  94     ArmSbconI2CState i2c[4];
  95     UnimplementedDeviceState i2s_audio;
  96     UnimplementedDeviceState gpio[4];
  97     UnimplementedDeviceState gfx;
  98     PL080State dma[4];
  99     TZMSC msc[4];
 100     CMSDKAPBUART uart[5];
 101     SplitIRQ sec_resp_splitter;
 102     qemu_or_irq uart_irq_orgate;
 103     DeviceState *lan9118;
 104     SplitIRQ cpu_irq_splitter[MPS2TZ_NUMIRQ];
 105     Clock *sysclk;
 106     Clock *s32kclk;
 107 };
 108
 109 #define TYPE_MPS2TZ_MACHINE "mps2tz"
 110 #define TYPE_MPS2TZ_AN505_MACHINE MACHINE_TYPE_NAME("mps2-an505")
 111 #define TYPE_MPS2TZ_AN521_MACHINE MACHINE_TYPE_NAME("mps2-an521")
 112
 113 OBJECT_DECLARE_TYPE(MPS2TZMachineState, MPS2TZMachineClass, MPS2TZ_MACHINE)
 114
 115 /* Slow 32Khz S32KCLK frequency in Hz */
 116 #define S32KCLK_FRQ (32 * 1000)
 117
 118 /* Create an alias of an entire original MemoryRegion @orig
 119  * located at @base in the memory map.
 120  */
 121 static void make_ram_alias(MemoryRegion *mr, const char *name,
 122                            MemoryRegion *orig, hwaddr base)
 123 {
 124     memory_region_init_alias(mr, NULL, name, orig, 0,
 125                              memory_region_size(orig));
 126     memory_region_add_subregion(get_system_memory(), base, mr);
 127 }
 128
 129 static qemu_irq get_sse_irq_in(MPS2TZMachineState *mms, int irqno)
 130 {
 131     /* Return a qemu_irq which will signal IRQ n to all CPUs in the SSE. */
 132     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
 133
 134     assert(irqno < MPS2TZ_NUMIRQ);
 135
 136     switch (mmc->fpga_type) {
 137     case FPGA_AN505:
 138         return qdev_get_gpio_in_named(DEVICE(&mms->iotkit), "EXP_IRQ", irqno);
 139     case FPGA_AN521:
 140         return qdev_get_gpio_in(DEVICE(&mms->cpu_irq_splitter[irqno]), 0);
 141     default:
 142         g_assert_not_reached();
 143     }
 144 }
 145
 146 /* Most of the devices in the AN505 FPGA image sit behind
 147  * Peripheral Protection Controllers. These data structures
 148  * define the layout of which devices sit behind which PPCs.
 149  * The devfn for each port is a function which creates, configures
 150  * and initializes the device, returning the MemoryRegion which
 151  * needs to be plugged into the downstream end of the PPC port.
 152  */
 153 typedef MemoryRegion *MakeDevFn(MPS2TZMachineState *mms, void *opaque,
 154                                 const char *name, hwaddr size);
 155
 156 typedef struct PPCPortInfo {
 157     const char *name;
 158     MakeDevFn *devfn;
 159     void *opaque;
 160     hwaddr addr;
 161     hwaddr size;
 162 } PPCPortInfo;
 163
 164 typedef struct PPCInfo {
 165     const char *name;
 166     PPCPortInfo ports[TZ_NUM_PORTS];
 167 } PPCInfo;
 168
 169 static MemoryRegion *make_unimp_dev(MPS2TZMachineState *mms,
 170                                        void *opaque,
 171                                        const char *name, hwaddr size)
 172 {
 173     /* Initialize, configure and realize a TYPE_UNIMPLEMENTED_DEVICE,
 174      * and return a pointer to its MemoryRegion.
 175      */
 176     UnimplementedDeviceState *uds = opaque;
 177
 178     object_initialize_child(OBJECT(mms), name, uds, TYPE_UNIMPLEMENTED_DEVICE);
 179     qdev_prop_set_string(DEVICE(uds), "name", name);
 180     qdev_prop_set_uint64(DEVICE(uds), "size", size);
 181     sysbus_realize(SYS_BUS_DEVICE(uds), &error_fatal);
 182     return sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0);
 183 }
 184
 185 static MemoryRegion *make_uart(MPS2TZMachineState *mms, void *opaque,
 186                                const char *name, hwaddr size)
 187 {
 188     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
 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     object_initialize_child(OBJECT(mms), name, uart, TYPE_CMSDK_APB_UART);
 198     qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i));
 199     qdev_prop_set_uint32(DEVICE(uart), "pclk-frq", mmc->sysclk_frq);
 200     sysbus_realize(SYS_BUS_DEVICE(uart), &error_fatal);
 201     s = SYS_BUS_DEVICE(uart);
 202     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, txirqno));
 203     sysbus_connect_irq(s, 1, get_sse_irq_in(mms, rxirqno));
 204     sysbus_connect_irq(s, 2, qdev_get_gpio_in(orgate_dev, i * 2));
 205     sysbus_connect_irq(s, 3, qdev_get_gpio_in(orgate_dev, i * 2 + 1));
 206     sysbus_connect_irq(s, 4, get_sse_irq_in(mms, combirqno));
 207     return sysbus_mmio_get_region(SYS_BUS_DEVICE(uart), 0);
 208 }
 209
 210 static MemoryRegion *make_scc(MPS2TZMachineState *mms, void *opaque,
 211                               const char *name, hwaddr size)
 212 {
 213     MPS2SCC *scc = opaque;
 214     DeviceState *sccdev;
 215     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
 216
 217     object_initialize_child(OBJECT(mms), "scc", scc, TYPE_MPS2_SCC);
 218     sccdev = DEVICE(scc);
 219     qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2);
 220     qdev_prop_set_uint32(sccdev, "scc-aid", 0x00200008);
 221     qdev_prop_set_uint32(sccdev, "scc-id", mmc->scc_id);
 222     sysbus_realize(SYS_BUS_DEVICE(scc), &error_fatal);
 223     return sysbus_mmio_get_region(SYS_BUS_DEVICE(sccdev), 0);
 224 }
 225
 226 static MemoryRegion *make_fpgaio(MPS2TZMachineState *mms, void *opaque,
 227                                  const char *name, hwaddr size)
 228 {
 229     MPS2FPGAIO *fpgaio = opaque;
 230
 231     object_initialize_child(OBJECT(mms), "fpgaio", fpgaio, TYPE_MPS2_FPGAIO);
 232     sysbus_realize(SYS_BUS_DEVICE(fpgaio), &error_fatal);
 233     return sysbus_mmio_get_region(SYS_BUS_DEVICE(fpgaio), 0);
 234 }
 235
 236 static MemoryRegion *make_eth_dev(MPS2TZMachineState *mms, void *opaque,
 237                                   const char *name, hwaddr size)
 238 {
 239     SysBusDevice *s;
 240     NICInfo *nd = &nd_table[0];
 241
 242     /* In hardware this is a LAN9220; the LAN9118 is software compatible
 243      * except that it doesn't support the checksum-offload feature.
 244      */
 245     qemu_check_nic_model(nd, "lan9118");
 246     mms->lan9118 = qdev_new(TYPE_LAN9118);
 247     qdev_set_nic_properties(mms->lan9118, nd);
 248
 249     s = SYS_BUS_DEVICE(mms->lan9118);
 250     sysbus_realize_and_unref(s, &error_fatal);
 251     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, 16));
 252     return sysbus_mmio_get_region(s, 0);
 253 }
 254
 255 static MemoryRegion *make_mpc(MPS2TZMachineState *mms, void *opaque,
 256                               const char *name, hwaddr size)
 257 {
 258     TZMPC *mpc = opaque;
 259     int i = mpc - &mms->ssram_mpc[0];
 260     MemoryRegion *ssram = &mms->ssram[i];
 261     MemoryRegion *upstream;
 262     char *mpcname = g_strdup_printf("%s-mpc", name);
 263     static uint32_t ramsize[] = { 0x00400000, 0x00200000, 0x00200000 };
 264     static uint32_t rambase[] = { 0x00000000, 0x28000000, 0x28200000 };
 265
 266     memory_region_init_ram(ssram, NULL, name, ramsize[i], &error_fatal);
 267
 268     object_initialize_child(OBJECT(mms), mpcname, mpc, TYPE_TZ_MPC);
 269     object_property_set_link(OBJECT(mpc), "downstream", OBJECT(ssram),
 270                              &error_fatal);
 271     sysbus_realize(SYS_BUS_DEVICE(mpc), &error_fatal);
 272     /* Map the upstream end of the MPC into system memory */
 273     upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 1);
 274     memory_region_add_subregion(get_system_memory(), rambase[i], upstream);
 275     /* and connect its interrupt to the IoTKit */
 276     qdev_connect_gpio_out_named(DEVICE(mpc), "irq", 0,
 277                                 qdev_get_gpio_in_named(DEVICE(&mms->iotkit),
 278                                                        "mpcexp_status", i));
 279
 280     /* The first SSRAM is a special case as it has an alias; accesses to
 281      * the alias region at 0x00400000 must also go to the MPC upstream.
 282      */
 283     if (i == 0) {
 284         make_ram_alias(&mms->ssram1_m, "mps.ssram1_m", upstream, 0x00400000);
 285     }
 286
 287     g_free(mpcname);
 288     /* Return the register interface MR for our caller to map behind the PPC */
 289     return sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 0);
 290 }
 291
 292 static MemoryRegion *make_dma(MPS2TZMachineState *mms, void *opaque,
 293                               const char *name, hwaddr size)
 294 {
 295     PL080State *dma = opaque;
 296     int i = dma - &mms->dma[0];
 297     SysBusDevice *s;
 298     char *mscname = g_strdup_printf("%s-msc", name);
 299     TZMSC *msc = &mms->msc[i];
 300     DeviceState *iotkitdev = DEVICE(&mms->iotkit);
 301     MemoryRegion *msc_upstream;
 302     MemoryRegion *msc_downstream;
 303
 304     /*
 305      * Each DMA device is a PL081 whose transaction master interface
 306      * is guarded by a Master Security Controller. The downstream end of
 307      * the MSC connects to the IoTKit AHB Slave Expansion port, so the
 308      * DMA devices can see all devices and memory that the CPU does.
 309      */
 310     object_initialize_child(OBJECT(mms), mscname, msc, TYPE_TZ_MSC);
 311     msc_downstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(&mms->iotkit), 0);
 312     object_property_set_link(OBJECT(msc), "downstream",
 313                              OBJECT(msc_downstream), &error_fatal);
 314     object_property_set_link(OBJECT(msc), "idau", OBJECT(mms), &error_fatal);
 315     sysbus_realize(SYS_BUS_DEVICE(msc), &error_fatal);
 316
 317     qdev_connect_gpio_out_named(DEVICE(msc), "irq", 0,
 318                                 qdev_get_gpio_in_named(iotkitdev,
 319                                                        "mscexp_status", i));
 320     qdev_connect_gpio_out_named(iotkitdev, "mscexp_clear", i,
 321                                 qdev_get_gpio_in_named(DEVICE(msc),
 322                                                        "irq_clear", 0));
 323     qdev_connect_gpio_out_named(iotkitdev, "mscexp_ns", i,
 324                                 qdev_get_gpio_in_named(DEVICE(msc),
 325                                                        "cfg_nonsec", 0));
 326     qdev_connect_gpio_out(DEVICE(&mms->sec_resp_splitter),
 327                           ARRAY_SIZE(mms->ppc) + i,
 328                           qdev_get_gpio_in_named(DEVICE(msc),
 329                                                  "cfg_sec_resp", 0));
 330     msc_upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(msc), 0);
 331
 332     object_initialize_child(OBJECT(mms), name, dma, TYPE_PL081);
 333     object_property_set_link(OBJECT(dma), "downstream", OBJECT(msc_upstream),
 334                              &error_fatal);
 335     sysbus_realize(SYS_BUS_DEVICE(dma), &error_fatal);
 336
 337     s = SYS_BUS_DEVICE(dma);
 338     /* Wire up DMACINTR, DMACINTERR, DMACINTTC */
 339     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, 58 + i * 3));
 340     sysbus_connect_irq(s, 1, get_sse_irq_in(mms, 56 + i * 3));
 341     sysbus_connect_irq(s, 2, get_sse_irq_in(mms, 57 + i * 3));
 342
 343     g_free(mscname);
 344     return sysbus_mmio_get_region(s, 0);
 345 }
 346
 347 static MemoryRegion *make_spi(MPS2TZMachineState *mms, void *opaque,
 348                               const char *name, hwaddr size)
 349 {
 350     /*
 351      * The AN505 has five PL022 SPI controllers.
 352      * One of these should have the LCD controller behind it; the others
 353      * are connected only to the FPGA's "general purpose SPI connector"
 354      * or "shield" expansion connectors.
 355      * Note that if we do implement devices behind SPI, the chip select
 356      * lines are set via the "MISC" register in the MPS2 FPGAIO device.
 357      */
 358     PL022State *spi = opaque;
 359     int i = spi - &mms->spi[0];
 360     SysBusDevice *s;
 361
 362     object_initialize_child(OBJECT(mms), name, spi, TYPE_PL022);
 363     sysbus_realize(SYS_BUS_DEVICE(spi), &error_fatal);
 364     s = SYS_BUS_DEVICE(spi);
 365     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, 51 + i));
 366     return sysbus_mmio_get_region(s, 0);
 367 }
 368
 369 static MemoryRegion *make_i2c(MPS2TZMachineState *mms, void *opaque,
 370                               const char *name, hwaddr size)
 371 {
 372     ArmSbconI2CState *i2c = opaque;
 373     SysBusDevice *s;
 374
 375     object_initialize_child(OBJECT(mms), name, i2c, TYPE_ARM_SBCON_I2C);
 376     s = SYS_BUS_DEVICE(i2c);
 377     sysbus_realize(s, &error_fatal);
 378     return sysbus_mmio_get_region(s, 0);
 379 }
 380
 381 static void mps2tz_common_init(MachineState *machine)
 382 {
 383     MPS2TZMachineState *mms = MPS2TZ_MACHINE(machine);
 384     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
 385     MachineClass *mc = MACHINE_GET_CLASS(machine);
 386     MemoryRegion *system_memory = get_system_memory();
 387     DeviceState *iotkitdev;
 388     DeviceState *dev_splitter;
 389     int i;
 390
 391     if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
 392         error_report("This board can only be used with CPU %s",
 393                      mc->default_cpu_type);
 394         exit(1);
 395     }
 396
 397     if (machine->ram_size != mc->default_ram_size) {
 398         char *sz = size_to_str(mc->default_ram_size);
 399         error_report("Invalid RAM size, should be %s", sz);
 400         g_free(sz);
 401         exit(EXIT_FAILURE);
 402     }
 403
 404     /* These clocks don't need migration because they are fixed-frequency */
 405     mms->sysclk = clock_new(OBJECT(machine), "SYSCLK");
 406     clock_set_hz(mms->sysclk, mmc->sysclk_frq);
 407     mms->s32kclk = clock_new(OBJECT(machine), "S32KCLK");
 408     clock_set_hz(mms->s32kclk, S32KCLK_FRQ);
 409
 410     object_initialize_child(OBJECT(machine), TYPE_IOTKIT, &mms->iotkit,
 411                             mmc->armsse_type);
 412     iotkitdev = DEVICE(&mms->iotkit);
 413     object_property_set_link(OBJECT(&mms->iotkit), "memory",
 414                              OBJECT(system_memory), &error_abort);
 415     qdev_prop_set_uint32(iotkitdev, "EXP_NUMIRQ", MPS2TZ_NUMIRQ);
 416     qdev_connect_clock_in(iotkitdev, "MAINCLK", mms->sysclk);
 417     qdev_connect_clock_in(iotkitdev, "S32KCLK", mms->s32kclk);
 418     sysbus_realize(SYS_BUS_DEVICE(&mms->iotkit), &error_fatal);
 419
 420     /*
 421      * The AN521 needs us to create splitters to feed the IRQ inputs
 422      * for each CPU in the SSE-200 from each device in the board.
 423      */
 424     if (mmc->fpga_type == FPGA_AN521) {
 425         for (i = 0; i < MPS2TZ_NUMIRQ; i++) {
 426             char *name = g_strdup_printf("mps2-irq-splitter%d", i);
 427             SplitIRQ *splitter = &mms->cpu_irq_splitter[i];
 428
 429             object_initialize_child_with_props(OBJECT(machine), name,
 430                                                splitter, sizeof(*splitter),
 431                                                TYPE_SPLIT_IRQ, &error_fatal,
 432                                                NULL);
 433             g_free(name);
 434
 435             object_property_set_int(OBJECT(splitter), "num-lines", 2,
 436                                     &error_fatal);
 437             qdev_realize(DEVICE(splitter), NULL, &error_fatal);
 438             qdev_connect_gpio_out(DEVICE(splitter), 0,
 439                                   qdev_get_gpio_in_named(DEVICE(&mms->iotkit),
 440                                                          "EXP_IRQ", i));
 441             qdev_connect_gpio_out(DEVICE(splitter), 1,
 442                                   qdev_get_gpio_in_named(DEVICE(&mms->iotkit),
 443                                                          "EXP_CPU1_IRQ", i));
 444         }
 445     }
 446
 447     /* The sec_resp_cfg output from the IoTKit must be split into multiple
 448      * lines, one for each of the PPCs we create here, plus one per MSC.
 449      */
 450     object_initialize_child(OBJECT(machine), "sec-resp-splitter",
 451                             &mms->sec_resp_splitter, TYPE_SPLIT_IRQ);
 452     object_property_set_int(OBJECT(&mms->sec_resp_splitter), "num-lines",
 453                             ARRAY_SIZE(mms->ppc) + ARRAY_SIZE(mms->msc),
 454                             &error_fatal);
 455     qdev_realize(DEVICE(&mms->sec_resp_splitter), NULL, &error_fatal);
 456     dev_splitter = DEVICE(&mms->sec_resp_splitter);
 457     qdev_connect_gpio_out_named(iotkitdev, "sec_resp_cfg", 0,
 458                                 qdev_get_gpio_in(dev_splitter, 0));
 459
 460     /* The IoTKit sets up much of the memory layout, including
 461      * the aliases between secure and non-secure regions in the
 462      * address space. The FPGA itself contains:
 463      *
 464      * 0x00000000..0x003fffff  SSRAM1
 465      * 0x00400000..0x007fffff  alias of SSRAM1
 466      * 0x28000000..0x283fffff  4MB SSRAM2 + SSRAM3
 467      * 0x40100000..0x4fffffff  AHB Master Expansion 1 interface devices
 468      * 0x80000000..0x80ffffff  16MB PSRAM
 469      */
 470
 471     /* The FPGA images have an odd combination of different RAMs,
 472      * because in hardware they are different implementations and
 473      * connected to different buses, giving varying performance/size
 474      * tradeoffs. For QEMU they're all just RAM, though. We arbitrarily
 475      * call the 16MB our "system memory", as it's the largest lump.
 476      */
 477     memory_region_add_subregion(system_memory, 0x80000000, machine->ram);
 478
 479     /* The overflow IRQs for all UARTs are ORed together.
 480      * Tx, Rx and "combined" IRQs are sent to the NVIC separately.
 481      * Create the OR gate for this.
 482      */
 483     object_initialize_child(OBJECT(mms), "uart-irq-orgate",
 484                             &mms->uart_irq_orgate, TYPE_OR_IRQ);
 485     object_property_set_int(OBJECT(&mms->uart_irq_orgate), "num-lines", 10,
 486                             &error_fatal);
 487     qdev_realize(DEVICE(&mms->uart_irq_orgate), NULL, &error_fatal);
 488     qdev_connect_gpio_out(DEVICE(&mms->uart_irq_orgate), 0,
 489                           get_sse_irq_in(mms, 15));
 490
 491     /* Most of the devices in the FPGA are behind Peripheral Protection
 492      * Controllers. The required order for initializing things is:
 493      *  + initialize the PPC
 494      *  + initialize, configure and realize downstream devices
 495      *  + connect downstream device MemoryRegions to the PPC
 496      *  + realize the PPC
 497      *  + map the PPC's MemoryRegions to the places in the address map
 498      *    where the downstream devices should appear
 499      *  + wire up the PPC's control lines to the IoTKit object
 500      */
 501
 502     const PPCInfo ppcs[] = { {
 503             .name = "apb_ppcexp0",
 504             .ports = {
 505                 { "ssram-0", make_mpc, &mms->ssram_mpc[0], 0x58007000, 0x1000 },
 506                 { "ssram-1", make_mpc, &mms->ssram_mpc[1], 0x58008000, 0x1000 },
 507                 { "ssram-2", make_mpc, &mms->ssram_mpc[2], 0x58009000, 0x1000 },
 508             },
 509         }, {
 510             .name = "apb_ppcexp1",
 511             .ports = {
 512                 { "spi0", make_spi, &mms->spi[0], 0x40205000, 0x1000 },
 513                 { "spi1", make_spi, &mms->spi[1], 0x40206000, 0x1000 },
 514                 { "spi2", make_spi, &mms->spi[2], 0x40209000, 0x1000 },
 515                 { "spi3", make_spi, &mms->spi[3], 0x4020a000, 0x1000 },
 516                 { "spi4", make_spi, &mms->spi[4], 0x4020b000, 0x1000 },
 517                 { "uart0", make_uart, &mms->uart[0], 0x40200000, 0x1000 },
 518                 { "uart1", make_uart, &mms->uart[1], 0x40201000, 0x1000 },
 519                 { "uart2", make_uart, &mms->uart[2], 0x40202000, 0x1000 },
 520                 { "uart3", make_uart, &mms->uart[3], 0x40203000, 0x1000 },
 521                 { "uart4", make_uart, &mms->uart[4], 0x40204000, 0x1000 },
 522                 { "i2c0", make_i2c, &mms->i2c[0], 0x40207000, 0x1000 },
 523                 { "i2c1", make_i2c, &mms->i2c[1], 0x40208000, 0x1000 },
 524                 { "i2c2", make_i2c, &mms->i2c[2], 0x4020c000, 0x1000 },
 525                 { "i2c3", make_i2c, &mms->i2c[3], 0x4020d000, 0x1000 },
 526             },
 527         }, {
 528             .name = "apb_ppcexp2",
 529             .ports = {
 530                 { "scc", make_scc, &mms->scc, 0x40300000, 0x1000 },
 531                 { "i2s-audio", make_unimp_dev, &mms->i2s_audio,
 532                   0x40301000, 0x1000 },
 533                 { "fpgaio", make_fpgaio, &mms->fpgaio, 0x40302000, 0x1000 },
 534             },
 535         }, {
 536             .name = "ahb_ppcexp0",
 537             .ports = {
 538                 { "gfx", make_unimp_dev, &mms->gfx, 0x41000000, 0x140000 },
 539                 { "gpio0", make_unimp_dev, &mms->gpio[0], 0x40100000, 0x1000 },
 540                 { "gpio1", make_unimp_dev, &mms->gpio[1], 0x40101000, 0x1000 },
 541                 { "gpio2", make_unimp_dev, &mms->gpio[2], 0x40102000, 0x1000 },
 542                 { "gpio3", make_unimp_dev, &mms->gpio[3], 0x40103000, 0x1000 },
 543                 { "eth", make_eth_dev, NULL, 0x42000000, 0x100000 },
 544             },
 545         }, {
 546             .name = "ahb_ppcexp1",
 547             .ports = {
 548                 { "dma0", make_dma, &mms->dma[0], 0x40110000, 0x1000 },
 549                 { "dma1", make_dma, &mms->dma[1], 0x40111000, 0x1000 },
 550                 { "dma2", make_dma, &mms->dma[2], 0x40112000, 0x1000 },
 551                 { "dma3", make_dma, &mms->dma[3], 0x40113000, 0x1000 },
 552             },
 553         },
 554     };
 555
 556     for (i = 0; i < ARRAY_SIZE(ppcs); i++) {
 557         const PPCInfo *ppcinfo = &ppcs[i];
 558         TZPPC *ppc = &mms->ppc[i];
 559         DeviceState *ppcdev;
 560         int port;
 561         char *gpioname;
 562
 563         object_initialize_child(OBJECT(machine), ppcinfo->name, ppc,
 564                                 TYPE_TZ_PPC);
 565         ppcdev = DEVICE(ppc);
 566
 567         for (port = 0; port < TZ_NUM_PORTS; port++) {
 568             const PPCPortInfo *pinfo = &ppcinfo->ports[port];
 569             MemoryRegion *mr;
 570             char *portname;
 571
 572             if (!pinfo->devfn) {
 573                 continue;
 574             }
 575
 576             mr = pinfo->devfn(mms, pinfo->opaque, pinfo->name, pinfo->size);
 577             portname = g_strdup_printf("port[%d]", port);
 578             object_property_set_link(OBJECT(ppc), portname, OBJECT(mr),
 579                                      &error_fatal);
 580             g_free(portname);
 581         }
 582
 583         sysbus_realize(SYS_BUS_DEVICE(ppc), &error_fatal);
 584
 585         for (port = 0; port < TZ_NUM_PORTS; port++) {
 586             const PPCPortInfo *pinfo = &ppcinfo->ports[port];
 587
 588             if (!pinfo->devfn) {
 589                 continue;
 590             }
 591             sysbus_mmio_map(SYS_BUS_DEVICE(ppc), port, pinfo->addr);
 592
 593             gpioname = g_strdup_printf("%s_nonsec", ppcinfo->name);
 594             qdev_connect_gpio_out_named(iotkitdev, gpioname, port,
 595                                         qdev_get_gpio_in_named(ppcdev,
 596                                                                "cfg_nonsec",
 597                                                                port));
 598             g_free(gpioname);
 599             gpioname = g_strdup_printf("%s_ap", ppcinfo->name);
 600             qdev_connect_gpio_out_named(iotkitdev, gpioname, port,
 601                                         qdev_get_gpio_in_named(ppcdev,
 602                                                                "cfg_ap", port));
 603             g_free(gpioname);
 604         }
 605
 606         gpioname = g_strdup_printf("%s_irq_enable", ppcinfo->name);
 607         qdev_connect_gpio_out_named(iotkitdev, gpioname, 0,
 608                                     qdev_get_gpio_in_named(ppcdev,
 609                                                            "irq_enable", 0));
 610         g_free(gpioname);
 611         gpioname = g_strdup_printf("%s_irq_clear", ppcinfo->name);
 612         qdev_connect_gpio_out_named(iotkitdev, gpioname, 0,
 613                                     qdev_get_gpio_in_named(ppcdev,
 614                                                            "irq_clear", 0));
 615         g_free(gpioname);
 616         gpioname = g_strdup_printf("%s_irq_status", ppcinfo->name);
 617         qdev_connect_gpio_out_named(ppcdev, "irq", 0,
 618                                     qdev_get_gpio_in_named(iotkitdev,
 619                                                            gpioname, 0));
 620         g_free(gpioname);
 621
 622         qdev_connect_gpio_out(dev_splitter, i,
 623                               qdev_get_gpio_in_named(ppcdev,
 624                                                      "cfg_sec_resp", 0));
 625     }
 626
 627     create_unimplemented_device("FPGA NS PC", 0x48007000, 0x1000);
 628
 629     armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename, 0x400000);
 630 }
 631
 632 static void mps2_tz_idau_check(IDAUInterface *ii, uint32_t address,
 633                                int *iregion, bool *exempt, bool *ns, bool *nsc)
 634 {
 635     /*
 636      * The MPS2 TZ FPGA images have IDAUs in them which are connected to
 637      * the Master Security Controllers. Thes have the same logic as
 638      * is used by the IoTKit for the IDAU connected to the CPU, except
 639      * that MSCs don't care about the NSC attribute.
 640      */
 641     int region = extract32(address, 28, 4);
 642
 643     *ns = !(region & 1);
 644     *nsc = false;
 645     /* 0xe0000000..0xe00fffff and 0xf0000000..0xf00fffff are exempt */
 646     *exempt = (address & 0xeff00000) == 0xe0000000;
 647     *iregion = region;
 648 }
 649
 650 static void mps2tz_class_init(ObjectClass *oc, void *data)
 651 {
 652     MachineClass *mc = MACHINE_CLASS(oc);
 653     IDAUInterfaceClass *iic = IDAU_INTERFACE_CLASS(oc);
 654
 655     mc->init = mps2tz_common_init;
 656     iic->check = mps2_tz_idau_check;
 657     mc->default_ram_size = 16 * MiB;
 658     mc->default_ram_id = "mps.ram";
 659 }
 660
 661 static void mps2tz_an505_class_init(ObjectClass *oc, void *data)
 662 {
 663     MachineClass *mc = MACHINE_CLASS(oc);
 664     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc);
 665
 666     mc->desc = "ARM MPS2 with AN505 FPGA image for Cortex-M33";
 667     mc->default_cpus = 1;
 668     mc->min_cpus = mc->default_cpus;
 669     mc->max_cpus = mc->default_cpus;
 670     mmc->fpga_type = FPGA_AN505;
 671     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33");
 672     mmc->scc_id = 0x41045050;
 673     mmc->sysclk_frq = 20 * 1000 * 1000; /* 20MHz */
 674     mmc->armsse_type = TYPE_IOTKIT;
 675 }
 676
 677 static void mps2tz_an521_class_init(ObjectClass *oc, void *data)
 678 {
 679     MachineClass *mc = MACHINE_CLASS(oc);
 680     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc);
 681
 682     mc->desc = "ARM MPS2 with AN521 FPGA image for dual Cortex-M33";
 683     mc->default_cpus = 2;
 684     mc->min_cpus = mc->default_cpus;
 685     mc->max_cpus = mc->default_cpus;
 686     mmc->fpga_type = FPGA_AN521;
 687     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33");
 688     mmc->scc_id = 0x41045210;
 689     mmc->sysclk_frq = 20 * 1000 * 1000; /* 20MHz */
 690     mmc->armsse_type = TYPE_SSE200;
 691 }
 692
 693 static const TypeInfo mps2tz_info = {
 694     .name = TYPE_MPS2TZ_MACHINE,
 695     .parent = TYPE_MACHINE,
 696     .abstract = true,
 697     .instance_size = sizeof(MPS2TZMachineState),
 698     .class_size = sizeof(MPS2TZMachineClass),
 699     .class_init = mps2tz_class_init,
 700     .interfaces = (InterfaceInfo[]) {
 701         { TYPE_IDAU_INTERFACE },
 702         { }
 703     },
 704 };
 705
 706 static const TypeInfo mps2tz_an505_info = {
 707     .name = TYPE_MPS2TZ_AN505_MACHINE,
 708     .parent = TYPE_MPS2TZ_MACHINE,
 709     .class_init = mps2tz_an505_class_init,
 710 };
 711
 712 static const TypeInfo mps2tz_an521_info = {
 713     .name = TYPE_MPS2TZ_AN521_MACHINE,
 714     .parent = TYPE_MPS2TZ_MACHINE,
 715     .class_init = mps2tz_an521_class_init,
 716 };
 717
 718 static void mps2tz_machine_init(void)
 719 {
 720     type_register_static(&mps2tz_info);
 721     type_register_static(&mps2tz_an505_info);
 722     type_register_static(&mps2tz_an521_info);
 723 }
 724
 725 type_init(mps2tz_machine_init);