xref: /openbmc/qemu/hw/arm/mps2-tz.c (revision 784155cd)
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  *  "mps2-an524" -- Dual Cortex-M33 as documented in Application Note AN524
20  *  "mps2-an547" -- Single Cortex-M55 as documented in Application Note AN547
21  *
22  * Links to the TRM for the board itself and to the various Application
23  * Notes which document the FPGA images can be found here:
24  * https://developer.arm.com/products/system-design/development-boards/fpga-prototyping-boards/mps2
25  *
26  * Board TRM:
27  * https://developer.arm.com/documentation/100112/latest/
28  * Application Note AN505:
29  * https://developer.arm.com/documentation/dai0505/latest/
30  * Application Note AN521:
31  * https://developer.arm.com/documentation/dai0521/latest/
32  * Application Note AN524:
33  * https://developer.arm.com/documentation/dai0524/latest/
34  * Application Note AN547:
35  * https://developer.arm.com/documentation/dai0547/latest/
36  *
37  * The AN505 defers to the Cortex-M33 processor ARMv8M IoT Kit FVP User Guide
38  * (ARM ECM0601256) for the details of some of the device layout:
39  *  https://developer.arm.com/documentation/ecm0601256/latest
40  * Similarly, the AN521 and AN524 use the SSE-200, and the SSE-200 TRM defines
41  * most of the device layout:
42  *  https://developer.arm.com/documentation/101104/latest/
43  * and the AN547 uses the SSE-300, whose layout is in the SSE-300 TRM:
44  *  https://developer.arm.com/documentation/101773/latest/
45  */
46 
47 #include "qemu/osdep.h"
48 #include "qemu/units.h"
49 #include "qemu/cutils.h"
50 #include "qapi/error.h"
51 #include "qemu/error-report.h"
52 #include "hw/arm/boot.h"
53 #include "hw/arm/armv7m.h"
54 #include "hw/or-irq.h"
55 #include "hw/boards.h"
56 #include "exec/address-spaces.h"
57 #include "sysemu/sysemu.h"
58 #include "sysemu/reset.h"
59 #include "hw/misc/unimp.h"
60 #include "hw/char/cmsdk-apb-uart.h"
61 #include "hw/timer/cmsdk-apb-timer.h"
62 #include "hw/misc/mps2-scc.h"
63 #include "hw/misc/mps2-fpgaio.h"
64 #include "hw/misc/tz-mpc.h"
65 #include "hw/misc/tz-msc.h"
66 #include "hw/arm/armsse.h"
67 #include "hw/dma/pl080.h"
68 #include "hw/rtc/pl031.h"
69 #include "hw/ssi/pl022.h"
70 #include "hw/i2c/arm_sbcon_i2c.h"
71 #include "hw/net/lan9118.h"
72 #include "net/net.h"
73 #include "hw/core/split-irq.h"
74 #include "hw/qdev-clock.h"
75 #include "qom/object.h"
76 #include "hw/irq.h"
77 
78 #define MPS2TZ_NUMIRQ_MAX 96
79 #define MPS2TZ_RAM_MAX 5
80 
81 typedef enum MPS2TZFPGAType {
82     FPGA_AN505,
83     FPGA_AN521,
84     FPGA_AN524,
85     FPGA_AN547,
86 } MPS2TZFPGAType;
87 
88 /*
89  * Define the layout of RAM in a board, including which parts are
90  * behind which MPCs.
91  * mrindex specifies the index into mms->ram[] to use for the backing RAM;
92  * -1 means "use the system RAM".
93  */
94 typedef struct RAMInfo {
95     const char *name;
96     uint32_t base;
97     uint32_t size;
98     int mpc; /* MPC number, -1 for "not behind an MPC" */
99     int mrindex;
100     int flags;
101 } RAMInfo;
102 
103 /*
104  * Flag values:
105  *  IS_ALIAS: this RAM area is an alias to the upstream end of the
106  *    MPC specified by its .mpc value
107  *  IS_ROM: this RAM area is read-only
108  */
109 #define IS_ALIAS 1
110 #define IS_ROM 2
111 
112 struct MPS2TZMachineClass {
113     MachineClass parent;
114     MPS2TZFPGAType fpga_type;
115     uint32_t scc_id;
116     uint32_t sysclk_frq; /* Main SYSCLK frequency in Hz */
117     uint32_t apb_periph_frq; /* APB peripheral frequency in Hz */
118     uint32_t len_oscclk;
119     const uint32_t *oscclk;
120     uint32_t fpgaio_num_leds; /* Number of LEDs in FPGAIO LED0 register */
121     bool fpgaio_has_switches; /* Does FPGAIO have SWITCH register? */
122     bool fpgaio_has_dbgctrl; /* Does FPGAIO have DBGCTRL register? */
123     int numirq; /* Number of external interrupts */
124     int uart_overflow_irq; /* number of the combined UART overflow IRQ */
125     uint32_t init_svtor; /* init-svtor setting for SSE */
126     uint32_t sram_addr_width; /* SRAM_ADDR_WIDTH setting for SSE */
127     uint32_t cpu0_mpu_ns; /* CPU0_MPU_NS setting for SSE */
128     uint32_t cpu0_mpu_s; /* CPU0_MPU_S setting for SSE */
129     uint32_t cpu1_mpu_ns; /* CPU1_MPU_NS setting for SSE */
130     uint32_t cpu1_mpu_s; /* CPU1_MPU_S setting for SSE */
131     const RAMInfo *raminfo;
132     const char *armsse_type;
133     uint32_t boot_ram_size; /* size of ram at address 0; 0 == find in raminfo */
134 };
135 
136 struct MPS2TZMachineState {
137     MachineState parent;
138 
139     ARMSSE iotkit;
140     MemoryRegion ram[MPS2TZ_RAM_MAX];
141     MemoryRegion eth_usb_container;
142 
143     MPS2SCC scc;
144     MPS2FPGAIO fpgaio;
145     TZPPC ppc[5];
146     TZMPC mpc[3];
147     PL022State spi[5];
148     ArmSbconI2CState i2c[5];
149     UnimplementedDeviceState i2s_audio;
150     UnimplementedDeviceState gpio[4];
151     UnimplementedDeviceState gfx;
152     UnimplementedDeviceState cldc;
153     UnimplementedDeviceState usb;
154     PL031State rtc;
155     PL080State dma[4];
156     TZMSC msc[4];
157     CMSDKAPBUART uart[6];
158     SplitIRQ sec_resp_splitter;
159     OrIRQState uart_irq_orgate;
160     DeviceState *lan9118;
161     SplitIRQ cpu_irq_splitter[MPS2TZ_NUMIRQ_MAX];
162     Clock *sysclk;
163     Clock *s32kclk;
164 
165     bool remap;
166     qemu_irq remap_irq;
167 };
168 
169 #define TYPE_MPS2TZ_MACHINE "mps2tz"
170 #define TYPE_MPS2TZ_AN505_MACHINE MACHINE_TYPE_NAME("mps2-an505")
171 #define TYPE_MPS2TZ_AN521_MACHINE MACHINE_TYPE_NAME("mps2-an521")
172 #define TYPE_MPS3TZ_AN524_MACHINE MACHINE_TYPE_NAME("mps3-an524")
173 #define TYPE_MPS3TZ_AN547_MACHINE MACHINE_TYPE_NAME("mps3-an547")
174 
175 OBJECT_DECLARE_TYPE(MPS2TZMachineState, MPS2TZMachineClass, MPS2TZ_MACHINE)
176 
177 /* Slow 32Khz S32KCLK frequency in Hz */
178 #define S32KCLK_FRQ (32 * 1000)
179 
180 /*
181  * The MPS3 DDR is 2GiB, but on a 32-bit host QEMU doesn't permit
182  * emulation of that much guest RAM, so artificially make it smaller.
183  */
184 #if HOST_LONG_BITS == 32
185 #define MPS3_DDR_SIZE (1 * GiB)
186 #else
187 #define MPS3_DDR_SIZE (2 * GiB)
188 #endif
189 
190 /* For cpu{0,1}_mpu_{ns,s}, means "leave at SSE's default value" */
191 #define MPU_REGION_DEFAULT UINT32_MAX
192 
193 static const uint32_t an505_oscclk[] = {
194     40000000,
195     24580000,
196     25000000,
197 };
198 
199 static const uint32_t an524_oscclk[] = {
200     24000000,
201     32000000,
202     50000000,
203     50000000,
204     24576000,
205     23750000,
206 };
207 
208 static const RAMInfo an505_raminfo[] = { {
209         .name = "ssram-0",
210         .base = 0x00000000,
211         .size = 0x00400000,
212         .mpc = 0,
213         .mrindex = 0,
214     }, {
215         .name = "ssram-1",
216         .base = 0x28000000,
217         .size = 0x00200000,
218         .mpc = 1,
219         .mrindex = 1,
220     }, {
221         .name = "ssram-2",
222         .base = 0x28200000,
223         .size = 0x00200000,
224         .mpc = 2,
225         .mrindex = 2,
226     }, {
227         .name = "ssram-0-alias",
228         .base = 0x00400000,
229         .size = 0x00400000,
230         .mpc = 0,
231         .mrindex = 3,
232         .flags = IS_ALIAS,
233     }, {
234         /* Use the largest bit of contiguous RAM as our "system memory" */
235         .name = "mps.ram",
236         .base = 0x80000000,
237         .size = 16 * MiB,
238         .mpc = -1,
239         .mrindex = -1,
240     }, {
241         .name = NULL,
242     },
243 };
244 
245 /*
246  * Note that the addresses and MPC numbering here should match up
247  * with those used in remap_memory(), which can swap the BRAM and QSPI.
248  */
249 static const RAMInfo an524_raminfo[] = { {
250         .name = "bram",
251         .base = 0x00000000,
252         .size = 512 * KiB,
253         .mpc = 0,
254         .mrindex = 0,
255     }, {
256         /* We don't model QSPI flash yet; for now expose it as simple ROM */
257         .name = "QSPI",
258         .base = 0x28000000,
259         .size = 8 * MiB,
260         .mpc = 1,
261         .mrindex = 1,
262         .flags = IS_ROM,
263     }, {
264         .name = "DDR",
265         .base = 0x60000000,
266         .size = MPS3_DDR_SIZE,
267         .mpc = 2,
268         .mrindex = -1,
269     }, {
270         .name = NULL,
271     },
272 };
273 
274 static const RAMInfo an547_raminfo[] = { {
275         .name = "sram",
276         .base = 0x01000000,
277         .size = 2 * MiB,
278         .mpc = 0,
279         .mrindex = 1,
280     }, {
281         .name = "sram 2",
282         .base = 0x21000000,
283         .size = 4 * MiB,
284         .mpc = -1,
285         .mrindex = 3,
286     }, {
287         /* We don't model QSPI flash yet; for now expose it as simple ROM */
288         .name = "QSPI",
289         .base = 0x28000000,
290         .size = 8 * MiB,
291         .mpc = 1,
292         .mrindex = 4,
293         .flags = IS_ROM,
294     }, {
295         .name = "DDR",
296         .base = 0x60000000,
297         .size = MPS3_DDR_SIZE,
298         .mpc = 2,
299         .mrindex = -1,
300     }, {
301         .name = NULL,
302     },
303 };
304 
305 static const RAMInfo *find_raminfo_for_mpc(MPS2TZMachineState *mms, int mpc)
306 {
307     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
308     const RAMInfo *p;
309     const RAMInfo *found = NULL;
310 
311     for (p = mmc->raminfo; p->name; p++) {
312         if (p->mpc == mpc && !(p->flags & IS_ALIAS)) {
313             /* There should only be one entry in the array for this MPC */
314             g_assert(!found);
315             found = p;
316         }
317     }
318     /* if raminfo array doesn't have an entry for each MPC this is a bug */
319     assert(found);
320     return found;
321 }
322 
323 static MemoryRegion *mr_for_raminfo(MPS2TZMachineState *mms,
324                                     const RAMInfo *raminfo)
325 {
326     /* Return an initialized MemoryRegion for the RAMInfo. */
327     MemoryRegion *ram;
328 
329     if (raminfo->mrindex < 0) {
330         /* Means this RAMInfo is for QEMU's "system memory" */
331         MachineState *machine = MACHINE(mms);
332         assert(!(raminfo->flags & IS_ROM));
333         return machine->ram;
334     }
335 
336     assert(raminfo->mrindex < MPS2TZ_RAM_MAX);
337     ram = &mms->ram[raminfo->mrindex];
338 
339     memory_region_init_ram(ram, NULL, raminfo->name,
340                            raminfo->size, &error_fatal);
341     if (raminfo->flags & IS_ROM) {
342         memory_region_set_readonly(ram, true);
343     }
344     return ram;
345 }
346 
347 /* Create an alias of an entire original MemoryRegion @orig
348  * located at @base in the memory map.
349  */
350 static void make_ram_alias(MemoryRegion *mr, const char *name,
351                            MemoryRegion *orig, hwaddr base)
352 {
353     memory_region_init_alias(mr, NULL, name, orig, 0,
354                              memory_region_size(orig));
355     memory_region_add_subregion(get_system_memory(), base, mr);
356 }
357 
358 static qemu_irq get_sse_irq_in(MPS2TZMachineState *mms, int irqno)
359 {
360     /*
361      * Return a qemu_irq which will signal IRQ n to all CPUs in the
362      * SSE.  The irqno should be as the CPU sees it, so the first
363      * external-to-the-SSE interrupt is 32.
364      */
365     MachineClass *mc = MACHINE_GET_CLASS(mms);
366     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
367 
368     assert(irqno >= 32 && irqno < (mmc->numirq + 32));
369 
370     /*
371      * Convert from "CPU irq number" (as listed in the FPGA image
372      * documentation) to the SSE external-interrupt number.
373      */
374     irqno -= 32;
375 
376     if (mc->max_cpus > 1) {
377         return qdev_get_gpio_in(DEVICE(&mms->cpu_irq_splitter[irqno]), 0);
378     } else {
379         return qdev_get_gpio_in_named(DEVICE(&mms->iotkit), "EXP_IRQ", irqno);
380     }
381 }
382 
383 /* Union describing the device-specific extra data we pass to the devfn. */
384 typedef union PPCExtraData {
385     bool i2c_internal;
386 } PPCExtraData;
387 
388 /* Most of the devices in the AN505 FPGA image sit behind
389  * Peripheral Protection Controllers. These data structures
390  * define the layout of which devices sit behind which PPCs.
391  * The devfn for each port is a function which creates, configures
392  * and initializes the device, returning the MemoryRegion which
393  * needs to be plugged into the downstream end of the PPC port.
394  */
395 typedef MemoryRegion *MakeDevFn(MPS2TZMachineState *mms, void *opaque,
396                                 const char *name, hwaddr size,
397                                 const int *irqs,
398                                 const PPCExtraData *extradata);
399 
400 typedef struct PPCPortInfo {
401     const char *name;
402     MakeDevFn *devfn;
403     void *opaque;
404     hwaddr addr;
405     hwaddr size;
406     int irqs[3]; /* currently no device needs more IRQ lines than this */
407     PPCExtraData extradata; /* to pass device-specific info to the devfn */
408 } PPCPortInfo;
409 
410 typedef struct PPCInfo {
411     const char *name;
412     PPCPortInfo ports[TZ_NUM_PORTS];
413 } PPCInfo;
414 
415 static MemoryRegion *make_unimp_dev(MPS2TZMachineState *mms,
416                                     void *opaque,
417                                     const char *name, hwaddr size,
418                                     const int *irqs,
419                                     const PPCExtraData *extradata)
420 {
421     /* Initialize, configure and realize a TYPE_UNIMPLEMENTED_DEVICE,
422      * and return a pointer to its MemoryRegion.
423      */
424     UnimplementedDeviceState *uds = opaque;
425 
426     object_initialize_child(OBJECT(mms), name, uds, TYPE_UNIMPLEMENTED_DEVICE);
427     qdev_prop_set_string(DEVICE(uds), "name", name);
428     qdev_prop_set_uint64(DEVICE(uds), "size", size);
429     sysbus_realize(SYS_BUS_DEVICE(uds), &error_fatal);
430     return sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0);
431 }
432 
433 static MemoryRegion *make_uart(MPS2TZMachineState *mms, void *opaque,
434                                const char *name, hwaddr size,
435                                const int *irqs, const PPCExtraData *extradata)
436 {
437     /* The irq[] array is tx, rx, combined, in that order */
438     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
439     CMSDKAPBUART *uart = opaque;
440     int i = uart - &mms->uart[0];
441     SysBusDevice *s;
442     DeviceState *orgate_dev = DEVICE(&mms->uart_irq_orgate);
443 
444     object_initialize_child(OBJECT(mms), name, uart, TYPE_CMSDK_APB_UART);
445     qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i));
446     qdev_prop_set_uint32(DEVICE(uart), "pclk-frq", mmc->apb_periph_frq);
447     sysbus_realize(SYS_BUS_DEVICE(uart), &error_fatal);
448     s = SYS_BUS_DEVICE(uart);
449     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, irqs[0]));
450     sysbus_connect_irq(s, 1, get_sse_irq_in(mms, irqs[1]));
451     sysbus_connect_irq(s, 2, qdev_get_gpio_in(orgate_dev, i * 2));
452     sysbus_connect_irq(s, 3, qdev_get_gpio_in(orgate_dev, i * 2 + 1));
453     sysbus_connect_irq(s, 4, get_sse_irq_in(mms, irqs[2]));
454     return sysbus_mmio_get_region(SYS_BUS_DEVICE(uart), 0);
455 }
456 
457 static MemoryRegion *make_scc(MPS2TZMachineState *mms, void *opaque,
458                               const char *name, hwaddr size,
459                               const int *irqs, const PPCExtraData *extradata)
460 {
461     MPS2SCC *scc = opaque;
462     DeviceState *sccdev;
463     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
464     uint32_t i;
465 
466     object_initialize_child(OBJECT(mms), "scc", scc, TYPE_MPS2_SCC);
467     sccdev = DEVICE(scc);
468     qdev_prop_set_uint32(sccdev, "scc-cfg0", mms->remap ? 1 : 0);
469     qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2);
470     qdev_prop_set_uint32(sccdev, "scc-aid", 0x00200008);
471     qdev_prop_set_uint32(sccdev, "scc-id", mmc->scc_id);
472     qdev_prop_set_uint32(sccdev, "len-oscclk", mmc->len_oscclk);
473     for (i = 0; i < mmc->len_oscclk; i++) {
474         g_autofree char *propname = g_strdup_printf("oscclk[%u]", i);
475         qdev_prop_set_uint32(sccdev, propname, mmc->oscclk[i]);
476     }
477     sysbus_realize(SYS_BUS_DEVICE(scc), &error_fatal);
478     return sysbus_mmio_get_region(SYS_BUS_DEVICE(sccdev), 0);
479 }
480 
481 static MemoryRegion *make_fpgaio(MPS2TZMachineState *mms, void *opaque,
482                                  const char *name, hwaddr size,
483                                  const int *irqs, const PPCExtraData *extradata)
484 {
485     MPS2FPGAIO *fpgaio = opaque;
486     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
487 
488     object_initialize_child(OBJECT(mms), "fpgaio", fpgaio, TYPE_MPS2_FPGAIO);
489     qdev_prop_set_uint32(DEVICE(fpgaio), "num-leds", mmc->fpgaio_num_leds);
490     qdev_prop_set_bit(DEVICE(fpgaio), "has-switches", mmc->fpgaio_has_switches);
491     qdev_prop_set_bit(DEVICE(fpgaio), "has-dbgctrl", mmc->fpgaio_has_dbgctrl);
492     sysbus_realize(SYS_BUS_DEVICE(fpgaio), &error_fatal);
493     return sysbus_mmio_get_region(SYS_BUS_DEVICE(fpgaio), 0);
494 }
495 
496 static MemoryRegion *make_eth_dev(MPS2TZMachineState *mms, void *opaque,
497                                   const char *name, hwaddr size,
498                                   const int *irqs,
499                                   const PPCExtraData *extradata)
500 {
501     SysBusDevice *s;
502     NICInfo *nd = &nd_table[0];
503 
504     /* In hardware this is a LAN9220; the LAN9118 is software compatible
505      * except that it doesn't support the checksum-offload feature.
506      */
507     qemu_check_nic_model(nd, "lan9118");
508     mms->lan9118 = qdev_new(TYPE_LAN9118);
509     qdev_set_nic_properties(mms->lan9118, nd);
510 
511     s = SYS_BUS_DEVICE(mms->lan9118);
512     sysbus_realize_and_unref(s, &error_fatal);
513     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, irqs[0]));
514     return sysbus_mmio_get_region(s, 0);
515 }
516 
517 static MemoryRegion *make_eth_usb(MPS2TZMachineState *mms, void *opaque,
518                                   const char *name, hwaddr size,
519                                   const int *irqs,
520                                   const PPCExtraData *extradata)
521 {
522     /*
523      * The AN524 makes the ethernet and USB share a PPC port.
524      * irqs[] is the ethernet IRQ.
525      */
526     SysBusDevice *s;
527     NICInfo *nd = &nd_table[0];
528 
529     memory_region_init(&mms->eth_usb_container, OBJECT(mms),
530                        "mps2-tz-eth-usb-container", 0x200000);
531 
532     /*
533      * In hardware this is a LAN9220; the LAN9118 is software compatible
534      * except that it doesn't support the checksum-offload feature.
535      */
536     qemu_check_nic_model(nd, "lan9118");
537     mms->lan9118 = qdev_new(TYPE_LAN9118);
538     qdev_set_nic_properties(mms->lan9118, nd);
539 
540     s = SYS_BUS_DEVICE(mms->lan9118);
541     sysbus_realize_and_unref(s, &error_fatal);
542     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, irqs[0]));
543 
544     memory_region_add_subregion(&mms->eth_usb_container,
545                                 0, sysbus_mmio_get_region(s, 0));
546 
547     /* The USB OTG controller is an ISP1763; we don't have a model of it. */
548     object_initialize_child(OBJECT(mms), "usb-otg",
549                             &mms->usb, TYPE_UNIMPLEMENTED_DEVICE);
550     qdev_prop_set_string(DEVICE(&mms->usb), "name", "usb-otg");
551     qdev_prop_set_uint64(DEVICE(&mms->usb), "size", 0x100000);
552     s = SYS_BUS_DEVICE(&mms->usb);
553     sysbus_realize(s, &error_fatal);
554 
555     memory_region_add_subregion(&mms->eth_usb_container,
556                                 0x100000, sysbus_mmio_get_region(s, 0));
557 
558     return &mms->eth_usb_container;
559 }
560 
561 static MemoryRegion *make_mpc(MPS2TZMachineState *mms, void *opaque,
562                               const char *name, hwaddr size,
563                               const int *irqs, const PPCExtraData *extradata)
564 {
565     TZMPC *mpc = opaque;
566     int i = mpc - &mms->mpc[0];
567     MemoryRegion *upstream;
568     const RAMInfo *raminfo = find_raminfo_for_mpc(mms, i);
569     MemoryRegion *ram = mr_for_raminfo(mms, raminfo);
570 
571     object_initialize_child(OBJECT(mms), name, mpc, TYPE_TZ_MPC);
572     object_property_set_link(OBJECT(mpc), "downstream", OBJECT(ram),
573                              &error_fatal);
574     sysbus_realize(SYS_BUS_DEVICE(mpc), &error_fatal);
575     /* Map the upstream end of the MPC into system memory */
576     upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 1);
577     memory_region_add_subregion(get_system_memory(), raminfo->base, upstream);
578     /* and connect its interrupt to the IoTKit */
579     qdev_connect_gpio_out_named(DEVICE(mpc), "irq", 0,
580                                 qdev_get_gpio_in_named(DEVICE(&mms->iotkit),
581                                                        "mpcexp_status", i));
582 
583     /* Return the register interface MR for our caller to map behind the PPC */
584     return sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 0);
585 }
586 
587 static hwaddr boot_mem_base(MPS2TZMachineState *mms)
588 {
589     /*
590      * Return the canonical address of the block which will be mapped
591      * at address 0x0 (i.e. where the vector table is).
592      * This is usually 0, but if the AN524 alternate memory map is
593      * enabled it will be the base address of the QSPI block.
594      */
595     return mms->remap ? 0x28000000 : 0;
596 }
597 
598 static void remap_memory(MPS2TZMachineState *mms, int map)
599 {
600     /*
601      * Remap the memory for the AN524. 'map' is the value of
602      * SCC CFG_REG0 bit 0, i.e. 0 for the default map and 1
603      * for the "option 1" mapping where QSPI is at address 0.
604      *
605      * Effectively we need to swap around the "upstream" ends of
606      * MPC 0 and MPC 1.
607      */
608     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
609     int i;
610 
611     if (mmc->fpga_type != FPGA_AN524) {
612         return;
613     }
614 
615     memory_region_transaction_begin();
616     for (i = 0; i < 2; i++) {
617         TZMPC *mpc = &mms->mpc[i];
618         MemoryRegion *upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 1);
619         hwaddr addr = (i ^ map) ? 0x28000000 : 0;
620 
621         memory_region_set_address(upstream, addr);
622     }
623     memory_region_transaction_commit();
624 }
625 
626 static void remap_irq_fn(void *opaque, int n, int level)
627 {
628     MPS2TZMachineState *mms = opaque;
629 
630     remap_memory(mms, level);
631 }
632 
633 static MemoryRegion *make_dma(MPS2TZMachineState *mms, void *opaque,
634                               const char *name, hwaddr size,
635                               const int *irqs, const PPCExtraData *extradata)
636 {
637     /* The irq[] array is DMACINTR, DMACINTERR, DMACINTTC, in that order */
638     PL080State *dma = opaque;
639     int i = dma - &mms->dma[0];
640     SysBusDevice *s;
641     char *mscname = g_strdup_printf("%s-msc", name);
642     TZMSC *msc = &mms->msc[i];
643     DeviceState *iotkitdev = DEVICE(&mms->iotkit);
644     MemoryRegion *msc_upstream;
645     MemoryRegion *msc_downstream;
646 
647     /*
648      * Each DMA device is a PL081 whose transaction master interface
649      * is guarded by a Master Security Controller. The downstream end of
650      * the MSC connects to the IoTKit AHB Slave Expansion port, so the
651      * DMA devices can see all devices and memory that the CPU does.
652      */
653     object_initialize_child(OBJECT(mms), mscname, msc, TYPE_TZ_MSC);
654     msc_downstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(&mms->iotkit), 0);
655     object_property_set_link(OBJECT(msc), "downstream",
656                              OBJECT(msc_downstream), &error_fatal);
657     object_property_set_link(OBJECT(msc), "idau", OBJECT(mms), &error_fatal);
658     sysbus_realize(SYS_BUS_DEVICE(msc), &error_fatal);
659 
660     qdev_connect_gpio_out_named(DEVICE(msc), "irq", 0,
661                                 qdev_get_gpio_in_named(iotkitdev,
662                                                        "mscexp_status", i));
663     qdev_connect_gpio_out_named(iotkitdev, "mscexp_clear", i,
664                                 qdev_get_gpio_in_named(DEVICE(msc),
665                                                        "irq_clear", 0));
666     qdev_connect_gpio_out_named(iotkitdev, "mscexp_ns", i,
667                                 qdev_get_gpio_in_named(DEVICE(msc),
668                                                        "cfg_nonsec", 0));
669     qdev_connect_gpio_out(DEVICE(&mms->sec_resp_splitter),
670                           ARRAY_SIZE(mms->ppc) + i,
671                           qdev_get_gpio_in_named(DEVICE(msc),
672                                                  "cfg_sec_resp", 0));
673     msc_upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(msc), 0);
674 
675     object_initialize_child(OBJECT(mms), name, dma, TYPE_PL081);
676     object_property_set_link(OBJECT(dma), "downstream", OBJECT(msc_upstream),
677                              &error_fatal);
678     sysbus_realize(SYS_BUS_DEVICE(dma), &error_fatal);
679 
680     s = SYS_BUS_DEVICE(dma);
681     /* Wire up DMACINTR, DMACINTERR, DMACINTTC */
682     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, irqs[0]));
683     sysbus_connect_irq(s, 1, get_sse_irq_in(mms, irqs[1]));
684     sysbus_connect_irq(s, 2, get_sse_irq_in(mms, irqs[2]));
685 
686     g_free(mscname);
687     return sysbus_mmio_get_region(s, 0);
688 }
689 
690 static MemoryRegion *make_spi(MPS2TZMachineState *mms, void *opaque,
691                               const char *name, hwaddr size,
692                               const int *irqs, const PPCExtraData *extradata)
693 {
694     /*
695      * The AN505 has five PL022 SPI controllers.
696      * One of these should have the LCD controller behind it; the others
697      * are connected only to the FPGA's "general purpose SPI connector"
698      * or "shield" expansion connectors.
699      * Note that if we do implement devices behind SPI, the chip select
700      * lines are set via the "MISC" register in the MPS2 FPGAIO device.
701      */
702     PL022State *spi = opaque;
703     SysBusDevice *s;
704 
705     object_initialize_child(OBJECT(mms), name, spi, TYPE_PL022);
706     sysbus_realize(SYS_BUS_DEVICE(spi), &error_fatal);
707     s = SYS_BUS_DEVICE(spi);
708     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, irqs[0]));
709     return sysbus_mmio_get_region(s, 0);
710 }
711 
712 static MemoryRegion *make_i2c(MPS2TZMachineState *mms, void *opaque,
713                               const char *name, hwaddr size,
714                               const int *irqs, const PPCExtraData *extradata)
715 {
716     ArmSbconI2CState *i2c = opaque;
717     SysBusDevice *s;
718 
719     object_initialize_child(OBJECT(mms), name, i2c, TYPE_ARM_SBCON_I2C);
720     s = SYS_BUS_DEVICE(i2c);
721     sysbus_realize(s, &error_fatal);
722 
723     /*
724      * If this is an internal-use-only i2c bus, mark it full
725      * so that user-created i2c devices are not plugged into it.
726      * If we implement models of any on-board i2c devices that
727      * plug in to one of the internal-use-only buses, then we will
728      * need to create and plugging those in here before we mark the
729      * bus as full.
730      */
731     if (extradata->i2c_internal) {
732         BusState *qbus = qdev_get_child_bus(DEVICE(i2c), "i2c");
733         qbus_mark_full(qbus);
734     }
735 
736     return sysbus_mmio_get_region(s, 0);
737 }
738 
739 static MemoryRegion *make_rtc(MPS2TZMachineState *mms, void *opaque,
740                               const char *name, hwaddr size,
741                               const int *irqs, const PPCExtraData *extradata)
742 {
743     PL031State *pl031 = opaque;
744     SysBusDevice *s;
745 
746     object_initialize_child(OBJECT(mms), name, pl031, TYPE_PL031);
747     s = SYS_BUS_DEVICE(pl031);
748     sysbus_realize(s, &error_fatal);
749     /*
750      * The board docs don't give an IRQ number for the PL031, so
751      * presumably it is not connected.
752      */
753     return sysbus_mmio_get_region(s, 0);
754 }
755 
756 static void create_non_mpc_ram(MPS2TZMachineState *mms)
757 {
758     /*
759      * Handle the RAMs which are either not behind MPCs or which are
760      * aliases to another MPC.
761      */
762     const RAMInfo *p;
763     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
764 
765     for (p = mmc->raminfo; p->name; p++) {
766         if (p->flags & IS_ALIAS) {
767             SysBusDevice *mpc_sbd = SYS_BUS_DEVICE(&mms->mpc[p->mpc]);
768             MemoryRegion *upstream = sysbus_mmio_get_region(mpc_sbd, 1);
769             make_ram_alias(&mms->ram[p->mrindex], p->name, upstream, p->base);
770         } else if (p->mpc == -1) {
771             /* RAM not behind an MPC */
772             MemoryRegion *mr = mr_for_raminfo(mms, p);
773             memory_region_add_subregion(get_system_memory(), p->base, mr);
774         }
775     }
776 }
777 
778 static uint32_t boot_ram_size(MPS2TZMachineState *mms)
779 {
780     /* Return the size of the RAM block at guest address zero */
781     const RAMInfo *p;
782     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
783 
784     /*
785      * Use a per-board specification (for when the boot RAM is in
786      * the SSE and so doesn't have a RAMInfo list entry)
787      */
788     if (mmc->boot_ram_size) {
789         return mmc->boot_ram_size;
790     }
791 
792     for (p = mmc->raminfo; p->name; p++) {
793         if (p->base == boot_mem_base(mms)) {
794             return p->size;
795         }
796     }
797     g_assert_not_reached();
798 }
799 
800 static void mps2tz_common_init(MachineState *machine)
801 {
802     MPS2TZMachineState *mms = MPS2TZ_MACHINE(machine);
803     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
804     MachineClass *mc = MACHINE_GET_CLASS(machine);
805     MemoryRegion *system_memory = get_system_memory();
806     DeviceState *iotkitdev;
807     DeviceState *dev_splitter;
808     const PPCInfo *ppcs;
809     int num_ppcs;
810     int i;
811 
812     if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
813         error_report("This board can only be used with CPU %s",
814                      mc->default_cpu_type);
815         exit(1);
816     }
817 
818     if (machine->ram_size != mc->default_ram_size) {
819         char *sz = size_to_str(mc->default_ram_size);
820         error_report("Invalid RAM size, should be %s", sz);
821         g_free(sz);
822         exit(EXIT_FAILURE);
823     }
824 
825     /* These clocks don't need migration because they are fixed-frequency */
826     mms->sysclk = clock_new(OBJECT(machine), "SYSCLK");
827     clock_set_hz(mms->sysclk, mmc->sysclk_frq);
828     mms->s32kclk = clock_new(OBJECT(machine), "S32KCLK");
829     clock_set_hz(mms->s32kclk, S32KCLK_FRQ);
830 
831     object_initialize_child(OBJECT(machine), TYPE_IOTKIT, &mms->iotkit,
832                             mmc->armsse_type);
833     iotkitdev = DEVICE(&mms->iotkit);
834     object_property_set_link(OBJECT(&mms->iotkit), "memory",
835                              OBJECT(system_memory), &error_abort);
836     qdev_prop_set_uint32(iotkitdev, "EXP_NUMIRQ", mmc->numirq);
837     qdev_prop_set_uint32(iotkitdev, "init-svtor", mmc->init_svtor);
838     if (mmc->cpu0_mpu_ns != MPU_REGION_DEFAULT) {
839         qdev_prop_set_uint32(iotkitdev, "CPU0_MPU_NS", mmc->cpu0_mpu_ns);
840     }
841     if (mmc->cpu0_mpu_s != MPU_REGION_DEFAULT) {
842         qdev_prop_set_uint32(iotkitdev, "CPU0_MPU_S", mmc->cpu0_mpu_s);
843     }
844     if (object_property_find(OBJECT(iotkitdev), "CPU1_MPU_NS")) {
845         if (mmc->cpu1_mpu_ns != MPU_REGION_DEFAULT) {
846             qdev_prop_set_uint32(iotkitdev, "CPU1_MPU_NS", mmc->cpu1_mpu_ns);
847         }
848         if (mmc->cpu1_mpu_s != MPU_REGION_DEFAULT) {
849             qdev_prop_set_uint32(iotkitdev, "CPU1_MPU_S", mmc->cpu1_mpu_s);
850         }
851     }
852     qdev_prop_set_uint32(iotkitdev, "SRAM_ADDR_WIDTH", mmc->sram_addr_width);
853     qdev_connect_clock_in(iotkitdev, "MAINCLK", mms->sysclk);
854     qdev_connect_clock_in(iotkitdev, "S32KCLK", mms->s32kclk);
855     sysbus_realize(SYS_BUS_DEVICE(&mms->iotkit), &error_fatal);
856 
857     /*
858      * If this board has more than one CPU, then we need to create splitters
859      * to feed the IRQ inputs for each CPU in the SSE from each device in the
860      * board. If there is only one CPU, we can just wire the device IRQ
861      * directly to the SSE's IRQ input.
862      */
863     assert(mmc->numirq <= MPS2TZ_NUMIRQ_MAX);
864     if (mc->max_cpus > 1) {
865         for (i = 0; i < mmc->numirq; i++) {
866             char *name = g_strdup_printf("mps2-irq-splitter%d", i);
867             SplitIRQ *splitter = &mms->cpu_irq_splitter[i];
868 
869             object_initialize_child_with_props(OBJECT(machine), name,
870                                                splitter, sizeof(*splitter),
871                                                TYPE_SPLIT_IRQ, &error_fatal,
872                                                NULL);
873             g_free(name);
874 
875             object_property_set_int(OBJECT(splitter), "num-lines", 2,
876                                     &error_fatal);
877             qdev_realize(DEVICE(splitter), NULL, &error_fatal);
878             qdev_connect_gpio_out(DEVICE(splitter), 0,
879                                   qdev_get_gpio_in_named(DEVICE(&mms->iotkit),
880                                                          "EXP_IRQ", i));
881             qdev_connect_gpio_out(DEVICE(splitter), 1,
882                                   qdev_get_gpio_in_named(DEVICE(&mms->iotkit),
883                                                          "EXP_CPU1_IRQ", i));
884         }
885     }
886 
887     /* The sec_resp_cfg output from the IoTKit must be split into multiple
888      * lines, one for each of the PPCs we create here, plus one per MSC.
889      */
890     object_initialize_child(OBJECT(machine), "sec-resp-splitter",
891                             &mms->sec_resp_splitter, TYPE_SPLIT_IRQ);
892     object_property_set_int(OBJECT(&mms->sec_resp_splitter), "num-lines",
893                             ARRAY_SIZE(mms->ppc) + ARRAY_SIZE(mms->msc),
894                             &error_fatal);
895     qdev_realize(DEVICE(&mms->sec_resp_splitter), NULL, &error_fatal);
896     dev_splitter = DEVICE(&mms->sec_resp_splitter);
897     qdev_connect_gpio_out_named(iotkitdev, "sec_resp_cfg", 0,
898                                 qdev_get_gpio_in(dev_splitter, 0));
899 
900     /*
901      * The IoTKit sets up much of the memory layout, including
902      * the aliases between secure and non-secure regions in the
903      * address space, and also most of the devices in the system.
904      * The FPGA itself contains various RAMs and some additional devices.
905      * The FPGA images have an odd combination of different RAMs,
906      * because in hardware they are different implementations and
907      * connected to different buses, giving varying performance/size
908      * tradeoffs. For QEMU they're all just RAM, though. We arbitrarily
909      * call the largest lump our "system memory".
910      */
911 
912     /*
913      * The overflow IRQs for all UARTs are ORed together.
914      * Tx, Rx and "combined" IRQs are sent to the NVIC separately.
915      * Create the OR gate for this: it has one input for the TX overflow
916      * and one for the RX overflow for each UART we might have.
917      * (If the board has fewer than the maximum possible number of UARTs
918      * those inputs are never wired up and are treated as always-zero.)
919      */
920     object_initialize_child(OBJECT(mms), "uart-irq-orgate",
921                             &mms->uart_irq_orgate, TYPE_OR_IRQ);
922     object_property_set_int(OBJECT(&mms->uart_irq_orgate), "num-lines",
923                             2 * ARRAY_SIZE(mms->uart),
924                             &error_fatal);
925     qdev_realize(DEVICE(&mms->uart_irq_orgate), NULL, &error_fatal);
926     qdev_connect_gpio_out(DEVICE(&mms->uart_irq_orgate), 0,
927                           get_sse_irq_in(mms, mmc->uart_overflow_irq));
928 
929     /* Most of the devices in the FPGA are behind Peripheral Protection
930      * Controllers. The required order for initializing things is:
931      *  + initialize the PPC
932      *  + initialize, configure and realize downstream devices
933      *  + connect downstream device MemoryRegions to the PPC
934      *  + realize the PPC
935      *  + map the PPC's MemoryRegions to the places in the address map
936      *    where the downstream devices should appear
937      *  + wire up the PPC's control lines to the IoTKit object
938      */
939 
940     const PPCInfo an505_ppcs[] = { {
941             .name = "apb_ppcexp0",
942             .ports = {
943                 { "ssram-0-mpc", make_mpc, &mms->mpc[0], 0x58007000, 0x1000 },
944                 { "ssram-1-mpc", make_mpc, &mms->mpc[1], 0x58008000, 0x1000 },
945                 { "ssram-2-mpc", make_mpc, &mms->mpc[2], 0x58009000, 0x1000 },
946             },
947         }, {
948             .name = "apb_ppcexp1",
949             .ports = {
950                 { "spi0", make_spi, &mms->spi[0], 0x40205000, 0x1000, { 51 } },
951                 { "spi1", make_spi, &mms->spi[1], 0x40206000, 0x1000, { 52 } },
952                 { "spi2", make_spi, &mms->spi[2], 0x40209000, 0x1000, { 53 } },
953                 { "spi3", make_spi, &mms->spi[3], 0x4020a000, 0x1000, { 54 } },
954                 { "spi4", make_spi, &mms->spi[4], 0x4020b000, 0x1000, { 55 } },
955                 { "uart0", make_uart, &mms->uart[0], 0x40200000, 0x1000, { 32, 33, 42 } },
956                 { "uart1", make_uart, &mms->uart[1], 0x40201000, 0x1000, { 34, 35, 43 } },
957                 { "uart2", make_uart, &mms->uart[2], 0x40202000, 0x1000, { 36, 37, 44 } },
958                 { "uart3", make_uart, &mms->uart[3], 0x40203000, 0x1000, { 38, 39, 45 } },
959                 { "uart4", make_uart, &mms->uart[4], 0x40204000, 0x1000, { 40, 41, 46 } },
960                 { "i2c0", make_i2c, &mms->i2c[0], 0x40207000, 0x1000, {},
961                   { .i2c_internal = true /* touchscreen */ } },
962                 { "i2c1", make_i2c, &mms->i2c[1], 0x40208000, 0x1000, {},
963                   { .i2c_internal = true /* audio conf */ } },
964                 { "i2c2", make_i2c, &mms->i2c[2], 0x4020c000, 0x1000, {},
965                   { .i2c_internal = false /* shield 0 */ } },
966                 { "i2c3", make_i2c, &mms->i2c[3], 0x4020d000, 0x1000, {},
967                   { .i2c_internal = false /* shield 1 */ } },
968             },
969         }, {
970             .name = "apb_ppcexp2",
971             .ports = {
972                 { "scc", make_scc, &mms->scc, 0x40300000, 0x1000 },
973                 { "i2s-audio", make_unimp_dev, &mms->i2s_audio,
974                   0x40301000, 0x1000 },
975                 { "fpgaio", make_fpgaio, &mms->fpgaio, 0x40302000, 0x1000 },
976             },
977         }, {
978             .name = "ahb_ppcexp0",
979             .ports = {
980                 { "gfx", make_unimp_dev, &mms->gfx, 0x41000000, 0x140000 },
981                 { "gpio0", make_unimp_dev, &mms->gpio[0], 0x40100000, 0x1000 },
982                 { "gpio1", make_unimp_dev, &mms->gpio[1], 0x40101000, 0x1000 },
983                 { "gpio2", make_unimp_dev, &mms->gpio[2], 0x40102000, 0x1000 },
984                 { "gpio3", make_unimp_dev, &mms->gpio[3], 0x40103000, 0x1000 },
985                 { "eth", make_eth_dev, NULL, 0x42000000, 0x100000, { 48 } },
986             },
987         }, {
988             .name = "ahb_ppcexp1",
989             .ports = {
990                 { "dma0", make_dma, &mms->dma[0], 0x40110000, 0x1000, { 58, 56, 57 } },
991                 { "dma1", make_dma, &mms->dma[1], 0x40111000, 0x1000, { 61, 59, 60 } },
992                 { "dma2", make_dma, &mms->dma[2], 0x40112000, 0x1000, { 64, 62, 63 } },
993                 { "dma3", make_dma, &mms->dma[3], 0x40113000, 0x1000, { 67, 65, 66 } },
994             },
995         },
996     };
997 
998     const PPCInfo an524_ppcs[] = { {
999             .name = "apb_ppcexp0",
1000             .ports = {
1001                 { "bram-mpc", make_mpc, &mms->mpc[0], 0x58007000, 0x1000 },
1002                 { "qspi-mpc", make_mpc, &mms->mpc[1], 0x58008000, 0x1000 },
1003                 { "ddr-mpc", make_mpc, &mms->mpc[2], 0x58009000, 0x1000 },
1004             },
1005         }, {
1006             .name = "apb_ppcexp1",
1007             .ports = {
1008                 { "i2c0", make_i2c, &mms->i2c[0], 0x41200000, 0x1000, {},
1009                   { .i2c_internal = true /* touchscreen */ } },
1010                 { "i2c1", make_i2c, &mms->i2c[1], 0x41201000, 0x1000, {},
1011                   { .i2c_internal = true /* audio conf */ } },
1012                 { "spi0", make_spi, &mms->spi[0], 0x41202000, 0x1000, { 52 } },
1013                 { "spi1", make_spi, &mms->spi[1], 0x41203000, 0x1000, { 53 } },
1014                 { "spi2", make_spi, &mms->spi[2], 0x41204000, 0x1000, { 54 } },
1015                 { "i2c2", make_i2c, &mms->i2c[2], 0x41205000, 0x1000, {},
1016                   { .i2c_internal = false /* shield 0 */ } },
1017                 { "i2c3", make_i2c, &mms->i2c[3], 0x41206000, 0x1000, {},
1018                   { .i2c_internal = false /* shield 1 */ } },
1019                 { /* port 7 reserved */ },
1020                 { "i2c4", make_i2c, &mms->i2c[4], 0x41208000, 0x1000, {},
1021                   { .i2c_internal = true /* DDR4 EEPROM */ } },
1022             },
1023         }, {
1024             .name = "apb_ppcexp2",
1025             .ports = {
1026                 { "scc", make_scc, &mms->scc, 0x41300000, 0x1000 },
1027                 { "i2s-audio", make_unimp_dev, &mms->i2s_audio,
1028                   0x41301000, 0x1000 },
1029                 { "fpgaio", make_fpgaio, &mms->fpgaio, 0x41302000, 0x1000 },
1030                 { "uart0", make_uart, &mms->uart[0], 0x41303000, 0x1000, { 32, 33, 42 } },
1031                 { "uart1", make_uart, &mms->uart[1], 0x41304000, 0x1000, { 34, 35, 43 } },
1032                 { "uart2", make_uart, &mms->uart[2], 0x41305000, 0x1000, { 36, 37, 44 } },
1033                 { "uart3", make_uart, &mms->uart[3], 0x41306000, 0x1000, { 38, 39, 45 } },
1034                 { "uart4", make_uart, &mms->uart[4], 0x41307000, 0x1000, { 40, 41, 46 } },
1035                 { "uart5", make_uart, &mms->uart[5], 0x41308000, 0x1000, { 124, 125, 126 } },
1036 
1037                 { /* port 9 reserved */ },
1038                 { "clcd", make_unimp_dev, &mms->cldc, 0x4130a000, 0x1000 },
1039                 { "rtc", make_rtc, &mms->rtc, 0x4130b000, 0x1000 },
1040             },
1041         }, {
1042             .name = "ahb_ppcexp0",
1043             .ports = {
1044                 { "gpio0", make_unimp_dev, &mms->gpio[0], 0x41100000, 0x1000 },
1045                 { "gpio1", make_unimp_dev, &mms->gpio[1], 0x41101000, 0x1000 },
1046                 { "gpio2", make_unimp_dev, &mms->gpio[2], 0x41102000, 0x1000 },
1047                 { "gpio3", make_unimp_dev, &mms->gpio[3], 0x41103000, 0x1000 },
1048                 { "eth-usb", make_eth_usb, NULL, 0x41400000, 0x200000, { 48 } },
1049             },
1050         },
1051     };
1052 
1053     const PPCInfo an547_ppcs[] = { {
1054             .name = "apb_ppcexp0",
1055             .ports = {
1056                 { "ssram-mpc", make_mpc, &mms->mpc[0], 0x57000000, 0x1000 },
1057                 { "qspi-mpc", make_mpc, &mms->mpc[1], 0x57001000, 0x1000 },
1058                 { "ddr-mpc", make_mpc, &mms->mpc[2], 0x57002000, 0x1000 },
1059             },
1060         }, {
1061             .name = "apb_ppcexp1",
1062             .ports = {
1063                 { "i2c0", make_i2c, &mms->i2c[0], 0x49200000, 0x1000, {},
1064                   { .i2c_internal = true /* touchscreen */ } },
1065                 { "i2c1", make_i2c, &mms->i2c[1], 0x49201000, 0x1000, {},
1066                   { .i2c_internal = true /* audio conf */ } },
1067                 { "spi0", make_spi, &mms->spi[0], 0x49202000, 0x1000, { 53 } },
1068                 { "spi1", make_spi, &mms->spi[1], 0x49203000, 0x1000, { 54 } },
1069                 { "spi2", make_spi, &mms->spi[2], 0x49204000, 0x1000, { 55 } },
1070                 { "i2c2", make_i2c, &mms->i2c[2], 0x49205000, 0x1000, {},
1071                   { .i2c_internal = false /* shield 0 */ } },
1072                 { "i2c3", make_i2c, &mms->i2c[3], 0x49206000, 0x1000, {},
1073                   { .i2c_internal = false /* shield 1 */ } },
1074                 { /* port 7 reserved */ },
1075                 { "i2c4", make_i2c, &mms->i2c[4], 0x49208000, 0x1000, {},
1076                   { .i2c_internal = true /* DDR4 EEPROM */ } },
1077             },
1078         }, {
1079             .name = "apb_ppcexp2",
1080             .ports = {
1081                 { "scc", make_scc, &mms->scc, 0x49300000, 0x1000 },
1082                 { "i2s-audio", make_unimp_dev, &mms->i2s_audio, 0x49301000, 0x1000 },
1083                 { "fpgaio", make_fpgaio, &mms->fpgaio, 0x49302000, 0x1000 },
1084                 { "uart0", make_uart, &mms->uart[0], 0x49303000, 0x1000, { 33, 34, 43 } },
1085                 { "uart1", make_uart, &mms->uart[1], 0x49304000, 0x1000, { 35, 36, 44 } },
1086                 { "uart2", make_uart, &mms->uart[2], 0x49305000, 0x1000, { 37, 38, 45 } },
1087                 { "uart3", make_uart, &mms->uart[3], 0x49306000, 0x1000, { 39, 40, 46 } },
1088                 { "uart4", make_uart, &mms->uart[4], 0x49307000, 0x1000, { 41, 42, 47 } },
1089                 { "uart5", make_uart, &mms->uart[5], 0x49308000, 0x1000, { 125, 126, 127 } },
1090 
1091                 { /* port 9 reserved */ },
1092                 { "clcd", make_unimp_dev, &mms->cldc, 0x4930a000, 0x1000 },
1093                 { "rtc", make_rtc, &mms->rtc, 0x4930b000, 0x1000 },
1094             },
1095         }, {
1096             .name = "ahb_ppcexp0",
1097             .ports = {
1098                 { "gpio0", make_unimp_dev, &mms->gpio[0], 0x41100000, 0x1000 },
1099                 { "gpio1", make_unimp_dev, &mms->gpio[1], 0x41101000, 0x1000 },
1100                 { "gpio2", make_unimp_dev, &mms->gpio[2], 0x41102000, 0x1000 },
1101                 { "gpio3", make_unimp_dev, &mms->gpio[3], 0x41103000, 0x1000 },
1102                 { /* port 4 USER AHB interface 0 */ },
1103                 { /* port 5 USER AHB interface 1 */ },
1104                 { /* port 6 USER AHB interface 2 */ },
1105                 { /* port 7 USER AHB interface 3 */ },
1106                 { "eth-usb", make_eth_usb, NULL, 0x41400000, 0x200000, { 49 } },
1107             },
1108         },
1109     };
1110 
1111     switch (mmc->fpga_type) {
1112     case FPGA_AN505:
1113     case FPGA_AN521:
1114         ppcs = an505_ppcs;
1115         num_ppcs = ARRAY_SIZE(an505_ppcs);
1116         break;
1117     case FPGA_AN524:
1118         ppcs = an524_ppcs;
1119         num_ppcs = ARRAY_SIZE(an524_ppcs);
1120         break;
1121     case FPGA_AN547:
1122         ppcs = an547_ppcs;
1123         num_ppcs = ARRAY_SIZE(an547_ppcs);
1124         break;
1125     default:
1126         g_assert_not_reached();
1127     }
1128 
1129     for (i = 0; i < num_ppcs; i++) {
1130         const PPCInfo *ppcinfo = &ppcs[i];
1131         TZPPC *ppc = &mms->ppc[i];
1132         DeviceState *ppcdev;
1133         int port;
1134         char *gpioname;
1135 
1136         object_initialize_child(OBJECT(machine), ppcinfo->name, ppc,
1137                                 TYPE_TZ_PPC);
1138         ppcdev = DEVICE(ppc);
1139 
1140         for (port = 0; port < TZ_NUM_PORTS; port++) {
1141             const PPCPortInfo *pinfo = &ppcinfo->ports[port];
1142             MemoryRegion *mr;
1143             char *portname;
1144 
1145             if (!pinfo->devfn) {
1146                 continue;
1147             }
1148 
1149             mr = pinfo->devfn(mms, pinfo->opaque, pinfo->name, pinfo->size,
1150                               pinfo->irqs, &pinfo->extradata);
1151             portname = g_strdup_printf("port[%d]", port);
1152             object_property_set_link(OBJECT(ppc), portname, OBJECT(mr),
1153                                      &error_fatal);
1154             g_free(portname);
1155         }
1156 
1157         sysbus_realize(SYS_BUS_DEVICE(ppc), &error_fatal);
1158 
1159         for (port = 0; port < TZ_NUM_PORTS; port++) {
1160             const PPCPortInfo *pinfo = &ppcinfo->ports[port];
1161 
1162             if (!pinfo->devfn) {
1163                 continue;
1164             }
1165             sysbus_mmio_map(SYS_BUS_DEVICE(ppc), port, pinfo->addr);
1166 
1167             gpioname = g_strdup_printf("%s_nonsec", ppcinfo->name);
1168             qdev_connect_gpio_out_named(iotkitdev, gpioname, port,
1169                                         qdev_get_gpio_in_named(ppcdev,
1170                                                                "cfg_nonsec",
1171                                                                port));
1172             g_free(gpioname);
1173             gpioname = g_strdup_printf("%s_ap", ppcinfo->name);
1174             qdev_connect_gpio_out_named(iotkitdev, gpioname, port,
1175                                         qdev_get_gpio_in_named(ppcdev,
1176                                                                "cfg_ap", port));
1177             g_free(gpioname);
1178         }
1179 
1180         gpioname = g_strdup_printf("%s_irq_enable", ppcinfo->name);
1181         qdev_connect_gpio_out_named(iotkitdev, gpioname, 0,
1182                                     qdev_get_gpio_in_named(ppcdev,
1183                                                            "irq_enable", 0));
1184         g_free(gpioname);
1185         gpioname = g_strdup_printf("%s_irq_clear", ppcinfo->name);
1186         qdev_connect_gpio_out_named(iotkitdev, gpioname, 0,
1187                                     qdev_get_gpio_in_named(ppcdev,
1188                                                            "irq_clear", 0));
1189         g_free(gpioname);
1190         gpioname = g_strdup_printf("%s_irq_status", ppcinfo->name);
1191         qdev_connect_gpio_out_named(ppcdev, "irq", 0,
1192                                     qdev_get_gpio_in_named(iotkitdev,
1193                                                            gpioname, 0));
1194         g_free(gpioname);
1195 
1196         qdev_connect_gpio_out(dev_splitter, i,
1197                               qdev_get_gpio_in_named(ppcdev,
1198                                                      "cfg_sec_resp", 0));
1199     }
1200 
1201     create_unimplemented_device("FPGA NS PC", 0x48007000, 0x1000);
1202 
1203     if (mmc->fpga_type == FPGA_AN547) {
1204         create_unimplemented_device("U55 timing adapter 0", 0x48102000, 0x1000);
1205         create_unimplemented_device("U55 timing adapter 1", 0x48103000, 0x1000);
1206     }
1207 
1208     create_non_mpc_ram(mms);
1209 
1210     if (mmc->fpga_type == FPGA_AN524) {
1211         /*
1212          * Connect the line from the SCC so that we can remap when the
1213          * guest updates that register.
1214          */
1215         mms->remap_irq = qemu_allocate_irq(remap_irq_fn, mms, 0);
1216         qdev_connect_gpio_out_named(DEVICE(&mms->scc), "remap", 0,
1217                                     mms->remap_irq);
1218     }
1219 
1220     armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
1221                        0, boot_ram_size(mms));
1222 }
1223 
1224 static void mps2_tz_idau_check(IDAUInterface *ii, uint32_t address,
1225                                int *iregion, bool *exempt, bool *ns, bool *nsc)
1226 {
1227     /*
1228      * The MPS2 TZ FPGA images have IDAUs in them which are connected to
1229      * the Master Security Controllers. These have the same logic as
1230      * is used by the IoTKit for the IDAU connected to the CPU, except
1231      * that MSCs don't care about the NSC attribute.
1232      */
1233     int region = extract32(address, 28, 4);
1234 
1235     *ns = !(region & 1);
1236     *nsc = false;
1237     /* 0xe0000000..0xe00fffff and 0xf0000000..0xf00fffff are exempt */
1238     *exempt = (address & 0xeff00000) == 0xe0000000;
1239     *iregion = region;
1240 }
1241 
1242 static char *mps2_get_remap(Object *obj, Error **errp)
1243 {
1244     MPS2TZMachineState *mms = MPS2TZ_MACHINE(obj);
1245     const char *val = mms->remap ? "QSPI" : "BRAM";
1246     return g_strdup(val);
1247 }
1248 
1249 static void mps2_set_remap(Object *obj, const char *value, Error **errp)
1250 {
1251     MPS2TZMachineState *mms = MPS2TZ_MACHINE(obj);
1252 
1253     if (!strcmp(value, "BRAM")) {
1254         mms->remap = false;
1255     } else if (!strcmp(value, "QSPI")) {
1256         mms->remap = true;
1257     } else {
1258         error_setg(errp, "Invalid remap value");
1259         error_append_hint(errp, "Valid values are BRAM and QSPI.\n");
1260     }
1261 }
1262 
1263 static void mps2_machine_reset(MachineState *machine, ShutdownCause reason)
1264 {
1265     MPS2TZMachineState *mms = MPS2TZ_MACHINE(machine);
1266 
1267     /*
1268      * Set the initial memory mapping before triggering the reset of
1269      * the rest of the system, so that the guest image loader and CPU
1270      * reset see the correct mapping.
1271      */
1272     remap_memory(mms, mms->remap);
1273     qemu_devices_reset(reason);
1274 }
1275 
1276 static void mps2tz_class_init(ObjectClass *oc, void *data)
1277 {
1278     MachineClass *mc = MACHINE_CLASS(oc);
1279     IDAUInterfaceClass *iic = IDAU_INTERFACE_CLASS(oc);
1280     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc);
1281 
1282     mc->init = mps2tz_common_init;
1283     mc->reset = mps2_machine_reset;
1284     iic->check = mps2_tz_idau_check;
1285 
1286     /* Most machines leave these at the SSE defaults */
1287     mmc->cpu0_mpu_ns = MPU_REGION_DEFAULT;
1288     mmc->cpu0_mpu_s = MPU_REGION_DEFAULT;
1289     mmc->cpu1_mpu_ns = MPU_REGION_DEFAULT;
1290     mmc->cpu1_mpu_s = MPU_REGION_DEFAULT;
1291 }
1292 
1293 static void mps2tz_set_default_ram_info(MPS2TZMachineClass *mmc)
1294 {
1295     /*
1296      * Set mc->default_ram_size and default_ram_id from the
1297      * information in mmc->raminfo.
1298      */
1299     MachineClass *mc = MACHINE_CLASS(mmc);
1300     const RAMInfo *p;
1301 
1302     for (p = mmc->raminfo; p->name; p++) {
1303         if (p->mrindex < 0) {
1304             /* Found the entry for "system memory" */
1305             mc->default_ram_size = p->size;
1306             mc->default_ram_id = p->name;
1307             return;
1308         }
1309     }
1310     g_assert_not_reached();
1311 }
1312 
1313 static void mps2tz_an505_class_init(ObjectClass *oc, void *data)
1314 {
1315     MachineClass *mc = MACHINE_CLASS(oc);
1316     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc);
1317 
1318     mc->desc = "ARM MPS2 with AN505 FPGA image for Cortex-M33";
1319     mc->default_cpus = 1;
1320     mc->min_cpus = mc->default_cpus;
1321     mc->max_cpus = mc->default_cpus;
1322     mmc->fpga_type = FPGA_AN505;
1323     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33");
1324     mmc->scc_id = 0x41045050;
1325     mmc->sysclk_frq = 20 * 1000 * 1000; /* 20MHz */
1326     mmc->apb_periph_frq = mmc->sysclk_frq;
1327     mmc->oscclk = an505_oscclk;
1328     mmc->len_oscclk = ARRAY_SIZE(an505_oscclk);
1329     mmc->fpgaio_num_leds = 2;
1330     mmc->fpgaio_has_switches = false;
1331     mmc->fpgaio_has_dbgctrl = false;
1332     mmc->numirq = 92;
1333     mmc->uart_overflow_irq = 47;
1334     mmc->init_svtor = 0x10000000;
1335     mmc->sram_addr_width = 15;
1336     mmc->raminfo = an505_raminfo;
1337     mmc->armsse_type = TYPE_IOTKIT;
1338     mmc->boot_ram_size = 0;
1339     mps2tz_set_default_ram_info(mmc);
1340 }
1341 
1342 static void mps2tz_an521_class_init(ObjectClass *oc, void *data)
1343 {
1344     MachineClass *mc = MACHINE_CLASS(oc);
1345     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc);
1346 
1347     mc->desc = "ARM MPS2 with AN521 FPGA image for dual Cortex-M33";
1348     mc->default_cpus = 2;
1349     mc->min_cpus = mc->default_cpus;
1350     mc->max_cpus = mc->default_cpus;
1351     mmc->fpga_type = FPGA_AN521;
1352     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33");
1353     mmc->scc_id = 0x41045210;
1354     mmc->sysclk_frq = 20 * 1000 * 1000; /* 20MHz */
1355     mmc->apb_periph_frq = mmc->sysclk_frq;
1356     mmc->oscclk = an505_oscclk; /* AN521 is the same as AN505 here */
1357     mmc->len_oscclk = ARRAY_SIZE(an505_oscclk);
1358     mmc->fpgaio_num_leds = 2;
1359     mmc->fpgaio_has_switches = false;
1360     mmc->fpgaio_has_dbgctrl = false;
1361     mmc->numirq = 92;
1362     mmc->uart_overflow_irq = 47;
1363     mmc->init_svtor = 0x10000000;
1364     mmc->sram_addr_width = 15;
1365     mmc->raminfo = an505_raminfo; /* AN521 is the same as AN505 here */
1366     mmc->armsse_type = TYPE_SSE200;
1367     mmc->boot_ram_size = 0;
1368     mps2tz_set_default_ram_info(mmc);
1369 }
1370 
1371 static void mps3tz_an524_class_init(ObjectClass *oc, void *data)
1372 {
1373     MachineClass *mc = MACHINE_CLASS(oc);
1374     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc);
1375 
1376     mc->desc = "ARM MPS3 with AN524 FPGA image for dual Cortex-M33";
1377     mc->default_cpus = 2;
1378     mc->min_cpus = mc->default_cpus;
1379     mc->max_cpus = mc->default_cpus;
1380     mmc->fpga_type = FPGA_AN524;
1381     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33");
1382     mmc->scc_id = 0x41045240;
1383     mmc->sysclk_frq = 32 * 1000 * 1000; /* 32MHz */
1384     mmc->apb_periph_frq = mmc->sysclk_frq;
1385     mmc->oscclk = an524_oscclk;
1386     mmc->len_oscclk = ARRAY_SIZE(an524_oscclk);
1387     mmc->fpgaio_num_leds = 10;
1388     mmc->fpgaio_has_switches = true;
1389     mmc->fpgaio_has_dbgctrl = false;
1390     mmc->numirq = 95;
1391     mmc->uart_overflow_irq = 47;
1392     mmc->init_svtor = 0x10000000;
1393     mmc->sram_addr_width = 15;
1394     mmc->raminfo = an524_raminfo;
1395     mmc->armsse_type = TYPE_SSE200;
1396     mmc->boot_ram_size = 0;
1397     mps2tz_set_default_ram_info(mmc);
1398 
1399     object_class_property_add_str(oc, "remap", mps2_get_remap, mps2_set_remap);
1400     object_class_property_set_description(oc, "remap",
1401                                           "Set memory mapping. Valid values "
1402                                           "are BRAM (default) and QSPI.");
1403 }
1404 
1405 static void mps3tz_an547_class_init(ObjectClass *oc, void *data)
1406 {
1407     MachineClass *mc = MACHINE_CLASS(oc);
1408     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc);
1409 
1410     mc->desc = "ARM MPS3 with AN547 FPGA image for Cortex-M55";
1411     mc->default_cpus = 1;
1412     mc->min_cpus = mc->default_cpus;
1413     mc->max_cpus = mc->default_cpus;
1414     mmc->fpga_type = FPGA_AN547;
1415     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m55");
1416     mmc->scc_id = 0x41055470;
1417     mmc->sysclk_frq = 32 * 1000 * 1000; /* 32MHz */
1418     mmc->apb_periph_frq = 25 * 1000 * 1000; /* 25MHz */
1419     mmc->oscclk = an524_oscclk; /* same as AN524 */
1420     mmc->len_oscclk = ARRAY_SIZE(an524_oscclk);
1421     mmc->fpgaio_num_leds = 10;
1422     mmc->fpgaio_has_switches = true;
1423     mmc->fpgaio_has_dbgctrl = true;
1424     mmc->numirq = 96;
1425     mmc->uart_overflow_irq = 48;
1426     mmc->init_svtor = 0x00000000;
1427     mmc->cpu0_mpu_s = mmc->cpu0_mpu_ns = 16;
1428     mmc->sram_addr_width = 21;
1429     mmc->raminfo = an547_raminfo;
1430     mmc->armsse_type = TYPE_SSE300;
1431     mmc->boot_ram_size = 512 * KiB;
1432     mps2tz_set_default_ram_info(mmc);
1433 }
1434 
1435 static const TypeInfo mps2tz_info = {
1436     .name = TYPE_MPS2TZ_MACHINE,
1437     .parent = TYPE_MACHINE,
1438     .abstract = true,
1439     .instance_size = sizeof(MPS2TZMachineState),
1440     .class_size = sizeof(MPS2TZMachineClass),
1441     .class_init = mps2tz_class_init,
1442     .interfaces = (InterfaceInfo[]) {
1443         { TYPE_IDAU_INTERFACE },
1444         { }
1445     },
1446 };
1447 
1448 static const TypeInfo mps2tz_an505_info = {
1449     .name = TYPE_MPS2TZ_AN505_MACHINE,
1450     .parent = TYPE_MPS2TZ_MACHINE,
1451     .class_init = mps2tz_an505_class_init,
1452 };
1453 
1454 static const TypeInfo mps2tz_an521_info = {
1455     .name = TYPE_MPS2TZ_AN521_MACHINE,
1456     .parent = TYPE_MPS2TZ_MACHINE,
1457     .class_init = mps2tz_an521_class_init,
1458 };
1459 
1460 static const TypeInfo mps3tz_an524_info = {
1461     .name = TYPE_MPS3TZ_AN524_MACHINE,
1462     .parent = TYPE_MPS2TZ_MACHINE,
1463     .class_init = mps3tz_an524_class_init,
1464 };
1465 
1466 static const TypeInfo mps3tz_an547_info = {
1467     .name = TYPE_MPS3TZ_AN547_MACHINE,
1468     .parent = TYPE_MPS2TZ_MACHINE,
1469     .class_init = mps3tz_an547_class_init,
1470 };
1471 
1472 static void mps2tz_machine_init(void)
1473 {
1474     type_register_static(&mps2tz_info);
1475     type_register_static(&mps2tz_an505_info);
1476     type_register_static(&mps2tz_an521_info);
1477     type_register_static(&mps3tz_an524_info);
1478     type_register_static(&mps3tz_an547_info);
1479 }
1480 
1481 type_init(mps2tz_machine_init);
1482