xref: /qemu/hw/arm/mps2.c (revision 8063396b)
1 /*
2  * ARM V2M MPS2 board emulation.
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  * We model the following FPGA images:
17  *  "mps2-an385" -- Cortex-M3 as documented in ARM Application Note AN385
18  *  "mps2-an386" -- Cortex-M4 as documented in ARM Application Note AN386
19  *  "mps2-an500" -- Cortex-M7 as documented in ARM Application Note AN500
20  *  "mps2-an511" -- Cortex-M3 'DesignStart' as documented in AN511
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/cortex-m-prototyping-system
25  */
26 
27 #include "qemu/osdep.h"
28 #include "qemu/units.h"
29 #include "qemu/cutils.h"
30 #include "qapi/error.h"
31 #include "qemu/error-report.h"
32 #include "hw/arm/boot.h"
33 #include "hw/arm/armv7m.h"
34 #include "hw/or-irq.h"
35 #include "hw/boards.h"
36 #include "exec/address-spaces.h"
37 #include "sysemu/sysemu.h"
38 #include "hw/misc/unimp.h"
39 #include "hw/char/cmsdk-apb-uart.h"
40 #include "hw/timer/cmsdk-apb-timer.h"
41 #include "hw/timer/cmsdk-apb-dualtimer.h"
42 #include "hw/misc/mps2-scc.h"
43 #include "hw/misc/mps2-fpgaio.h"
44 #include "hw/ssi/pl022.h"
45 #include "hw/i2c/arm_sbcon_i2c.h"
46 #include "hw/net/lan9118.h"
47 #include "net/net.h"
48 #include "hw/watchdog/cmsdk-apb-watchdog.h"
49 #include "qom/object.h"
50 
51 typedef enum MPS2FPGAType {
52     FPGA_AN385,
53     FPGA_AN386,
54     FPGA_AN500,
55     FPGA_AN511,
56 } MPS2FPGAType;
57 
58 struct MPS2MachineClass {
59     MachineClass parent;
60     MPS2FPGAType fpga_type;
61     uint32_t scc_id;
62     bool has_block_ram;
63     hwaddr ethernet_base;
64     hwaddr psram_base;
65 };
66 
67 struct MPS2MachineState {
68     MachineState parent;
69 
70     ARMv7MState armv7m;
71     MemoryRegion ssram1;
72     MemoryRegion ssram1_m;
73     MemoryRegion ssram23;
74     MemoryRegion ssram23_m;
75     MemoryRegion blockram;
76     MemoryRegion blockram_m1;
77     MemoryRegion blockram_m2;
78     MemoryRegion blockram_m3;
79     MemoryRegion sram;
80     /* FPGA APB subsystem */
81     MPS2SCC scc;
82     MPS2FPGAIO fpgaio;
83     /* CMSDK APB subsystem */
84     CMSDKAPBDualTimer dualtimer;
85     CMSDKAPBWatchdog watchdog;
86 };
87 
88 #define TYPE_MPS2_MACHINE "mps2"
89 #define TYPE_MPS2_AN385_MACHINE MACHINE_TYPE_NAME("mps2-an385")
90 #define TYPE_MPS2_AN386_MACHINE MACHINE_TYPE_NAME("mps2-an386")
91 #define TYPE_MPS2_AN500_MACHINE MACHINE_TYPE_NAME("mps2-an500")
92 #define TYPE_MPS2_AN511_MACHINE MACHINE_TYPE_NAME("mps2-an511")
93 
94 OBJECT_DECLARE_TYPE(MPS2MachineState, MPS2MachineClass, MPS2_MACHINE)
95 
96 /* Main SYSCLK frequency in Hz */
97 #define SYSCLK_FRQ 25000000
98 
99 /* Initialize the auxiliary RAM region @mr and map it into
100  * the memory map at @base.
101  */
102 static void make_ram(MemoryRegion *mr, const char *name,
103                      hwaddr base, hwaddr size)
104 {
105     memory_region_init_ram(mr, NULL, name, size, &error_fatal);
106     memory_region_add_subregion(get_system_memory(), base, mr);
107 }
108 
109 /* Create an alias of an entire original MemoryRegion @orig
110  * located at @base in the memory map.
111  */
112 static void make_ram_alias(MemoryRegion *mr, const char *name,
113                            MemoryRegion *orig, hwaddr base)
114 {
115     memory_region_init_alias(mr, NULL, name, orig, 0,
116                              memory_region_size(orig));
117     memory_region_add_subregion(get_system_memory(), base, mr);
118 }
119 
120 static void mps2_common_init(MachineState *machine)
121 {
122     MPS2MachineState *mms = MPS2_MACHINE(machine);
123     MPS2MachineClass *mmc = MPS2_MACHINE_GET_CLASS(machine);
124     MemoryRegion *system_memory = get_system_memory();
125     MachineClass *mc = MACHINE_GET_CLASS(machine);
126     DeviceState *armv7m, *sccdev;
127     int i;
128 
129     if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
130         error_report("This board can only be used with CPU %s",
131                      mc->default_cpu_type);
132         exit(1);
133     }
134 
135     if (machine->ram_size != mc->default_ram_size) {
136         char *sz = size_to_str(mc->default_ram_size);
137         error_report("Invalid RAM size, should be %s", sz);
138         g_free(sz);
139         exit(EXIT_FAILURE);
140     }
141 
142     /* The FPGA images have an odd combination of different RAMs,
143      * because in hardware they are different implementations and
144      * connected to different buses, giving varying performance/size
145      * tradeoffs. For QEMU they're all just RAM, though. We arbitrarily
146      * call the 16MB our "system memory", as it's the largest lump.
147      *
148      * AN385/AN386/AN511:
149      *  0x21000000 .. 0x21ffffff : PSRAM (16MB)
150      * AN385/AN386/AN500:
151      *  0x00000000 .. 0x003fffff : ZBT SSRAM1
152      *  0x00400000 .. 0x007fffff : mirror of ZBT SSRAM1
153      *  0x20000000 .. 0x203fffff : ZBT SSRAM 2&3
154      *  0x20400000 .. 0x207fffff : mirror of ZBT SSRAM 2&3
155      * AN385/AN386 only:
156      *  0x01000000 .. 0x01003fff : block RAM (16K)
157      *  0x01004000 .. 0x01007fff : mirror of above
158      *  0x01008000 .. 0x0100bfff : mirror of above
159      *  0x0100c000 .. 0x0100ffff : mirror of above
160      * AN511 only:
161      *  0x00000000 .. 0x0003ffff : FPGA block RAM
162      *  0x00400000 .. 0x007fffff : ZBT SSRAM1
163      *  0x20000000 .. 0x2001ffff : SRAM
164      *  0x20400000 .. 0x207fffff : ZBT SSRAM 2&3
165      * AN500 only:
166      *  0x60000000 .. 0x60ffffff : PSRAM (16MB)
167      *
168      * The AN385/AN386 has a feature where the lowest 16K can be mapped
169      * either to the bottom of the ZBT SSRAM1 or to the block RAM.
170      * This is of no use for QEMU so we don't implement it (as if
171      * zbt_boot_ctrl is always zero).
172      */
173     memory_region_add_subregion(system_memory, mmc->psram_base, machine->ram);
174 
175     if (mmc->has_block_ram) {
176         make_ram(&mms->blockram, "mps.blockram", 0x01000000, 0x4000);
177         make_ram_alias(&mms->blockram_m1, "mps.blockram_m1",
178                        &mms->blockram, 0x01004000);
179         make_ram_alias(&mms->blockram_m2, "mps.blockram_m2",
180                        &mms->blockram, 0x01008000);
181         make_ram_alias(&mms->blockram_m3, "mps.blockram_m3",
182                        &mms->blockram, 0x0100c000);
183     }
184 
185     switch (mmc->fpga_type) {
186     case FPGA_AN385:
187     case FPGA_AN386:
188     case FPGA_AN500:
189         make_ram(&mms->ssram1, "mps.ssram1", 0x0, 0x400000);
190         make_ram_alias(&mms->ssram1_m, "mps.ssram1_m", &mms->ssram1, 0x400000);
191         make_ram(&mms->ssram23, "mps.ssram23", 0x20000000, 0x400000);
192         make_ram_alias(&mms->ssram23_m, "mps.ssram23_m",
193                        &mms->ssram23, 0x20400000);
194         break;
195     case FPGA_AN511:
196         make_ram(&mms->blockram, "mps.blockram", 0x0, 0x40000);
197         make_ram(&mms->ssram1, "mps.ssram1", 0x00400000, 0x00800000);
198         make_ram(&mms->sram, "mps.sram", 0x20000000, 0x20000);
199         make_ram(&mms->ssram23, "mps.ssram23", 0x20400000, 0x400000);
200         break;
201     default:
202         g_assert_not_reached();
203     }
204 
205     object_initialize_child(OBJECT(mms), "armv7m", &mms->armv7m, TYPE_ARMV7M);
206     armv7m = DEVICE(&mms->armv7m);
207     switch (mmc->fpga_type) {
208     case FPGA_AN385:
209     case FPGA_AN386:
210     case FPGA_AN500:
211         qdev_prop_set_uint32(armv7m, "num-irq", 32);
212         break;
213     case FPGA_AN511:
214         qdev_prop_set_uint32(armv7m, "num-irq", 64);
215         break;
216     default:
217         g_assert_not_reached();
218     }
219     qdev_prop_set_string(armv7m, "cpu-type", machine->cpu_type);
220     qdev_prop_set_bit(armv7m, "enable-bitband", true);
221     object_property_set_link(OBJECT(&mms->armv7m), "memory",
222                              OBJECT(system_memory), &error_abort);
223     sysbus_realize(SYS_BUS_DEVICE(&mms->armv7m), &error_fatal);
224 
225     create_unimplemented_device("zbtsmram mirror", 0x00400000, 0x00400000);
226     create_unimplemented_device("RESERVED 1", 0x00800000, 0x00800000);
227     create_unimplemented_device("Block RAM", 0x01000000, 0x00010000);
228     create_unimplemented_device("RESERVED 2", 0x01010000, 0x1EFF0000);
229     create_unimplemented_device("RESERVED 3", 0x20800000, 0x00800000);
230     create_unimplemented_device("PSRAM", 0x21000000, 0x01000000);
231     /* These three ranges all cover multiple devices; we may implement
232      * some of them below (in which case the real device takes precedence
233      * over the unimplemented-region mapping).
234      */
235     create_unimplemented_device("CMSDK APB peripheral region @0x40000000",
236                                 0x40000000, 0x00010000);
237     create_unimplemented_device("CMSDK AHB peripheral region @0x40010000",
238                                 0x40010000, 0x00010000);
239     create_unimplemented_device("Extra peripheral region @0x40020000",
240                                 0x40020000, 0x00010000);
241 
242     create_unimplemented_device("RESERVED 4", 0x40030000, 0x001D0000);
243     create_unimplemented_device("VGA", 0x41000000, 0x0200000);
244 
245     switch (mmc->fpga_type) {
246     case FPGA_AN385:
247     case FPGA_AN386:
248     case FPGA_AN500:
249     {
250         /* The overflow IRQs for UARTs 0, 1 and 2 are ORed together.
251          * Overflow for UARTs 4 and 5 doesn't trigger any interrupt.
252          */
253         Object *orgate;
254         DeviceState *orgate_dev;
255 
256         orgate = object_new(TYPE_OR_IRQ);
257         object_property_set_int(orgate, "num-lines", 6, &error_fatal);
258         qdev_realize(DEVICE(orgate), NULL, &error_fatal);
259         orgate_dev = DEVICE(orgate);
260         qdev_connect_gpio_out(orgate_dev, 0, qdev_get_gpio_in(armv7m, 12));
261 
262         for (i = 0; i < 5; i++) {
263             static const hwaddr uartbase[] = {0x40004000, 0x40005000,
264                                               0x40006000, 0x40007000,
265                                               0x40009000};
266             /* RX irq number; TX irq is always one greater */
267             static const int uartirq[] = {0, 2, 4, 18, 20};
268             qemu_irq txovrint = NULL, rxovrint = NULL;
269 
270             if (i < 3) {
271                 txovrint = qdev_get_gpio_in(orgate_dev, i * 2);
272                 rxovrint = qdev_get_gpio_in(orgate_dev, i * 2 + 1);
273             }
274 
275             cmsdk_apb_uart_create(uartbase[i],
276                                   qdev_get_gpio_in(armv7m, uartirq[i] + 1),
277                                   qdev_get_gpio_in(armv7m, uartirq[i]),
278                                   txovrint, rxovrint,
279                                   NULL,
280                                   serial_hd(i), SYSCLK_FRQ);
281         }
282         break;
283     }
284     case FPGA_AN511:
285     {
286         /* The overflow IRQs for all UARTs are ORed together.
287          * Tx and Rx IRQs for each UART are ORed together.
288          */
289         Object *orgate;
290         DeviceState *orgate_dev;
291 
292         orgate = object_new(TYPE_OR_IRQ);
293         object_property_set_int(orgate, "num-lines", 10, &error_fatal);
294         qdev_realize(DEVICE(orgate), NULL, &error_fatal);
295         orgate_dev = DEVICE(orgate);
296         qdev_connect_gpio_out(orgate_dev, 0, qdev_get_gpio_in(armv7m, 12));
297 
298         for (i = 0; i < 5; i++) {
299             /* system irq numbers for the combined tx/rx for each UART */
300             static const int uart_txrx_irqno[] = {0, 2, 45, 46, 56};
301             static const hwaddr uartbase[] = {0x40004000, 0x40005000,
302                                               0x4002c000, 0x4002d000,
303                                               0x4002e000};
304             Object *txrx_orgate;
305             DeviceState *txrx_orgate_dev;
306 
307             txrx_orgate = object_new(TYPE_OR_IRQ);
308             object_property_set_int(txrx_orgate, "num-lines", 2, &error_fatal);
309             qdev_realize(DEVICE(txrx_orgate), NULL, &error_fatal);
310             txrx_orgate_dev = DEVICE(txrx_orgate);
311             qdev_connect_gpio_out(txrx_orgate_dev, 0,
312                                   qdev_get_gpio_in(armv7m, uart_txrx_irqno[i]));
313             cmsdk_apb_uart_create(uartbase[i],
314                                   qdev_get_gpio_in(txrx_orgate_dev, 0),
315                                   qdev_get_gpio_in(txrx_orgate_dev, 1),
316                                   qdev_get_gpio_in(orgate_dev, i * 2),
317                                   qdev_get_gpio_in(orgate_dev, i * 2 + 1),
318                                   NULL,
319                                   serial_hd(i), SYSCLK_FRQ);
320         }
321         break;
322     }
323     default:
324         g_assert_not_reached();
325     }
326     for (i = 0; i < 4; i++) {
327         static const hwaddr gpiobase[] = {0x40010000, 0x40011000,
328                                           0x40012000, 0x40013000};
329         create_unimplemented_device("cmsdk-ahb-gpio", gpiobase[i], 0x1000);
330     }
331 
332     /* CMSDK APB subsystem */
333     cmsdk_apb_timer_create(0x40000000, qdev_get_gpio_in(armv7m, 8), SYSCLK_FRQ);
334     cmsdk_apb_timer_create(0x40001000, qdev_get_gpio_in(armv7m, 9), SYSCLK_FRQ);
335     object_initialize_child(OBJECT(mms), "dualtimer", &mms->dualtimer,
336                             TYPE_CMSDK_APB_DUALTIMER);
337     qdev_prop_set_uint32(DEVICE(&mms->dualtimer), "pclk-frq", SYSCLK_FRQ);
338     sysbus_realize(SYS_BUS_DEVICE(&mms->dualtimer), &error_fatal);
339     sysbus_connect_irq(SYS_BUS_DEVICE(&mms->dualtimer), 0,
340                        qdev_get_gpio_in(armv7m, 10));
341     sysbus_mmio_map(SYS_BUS_DEVICE(&mms->dualtimer), 0, 0x40002000);
342     object_initialize_child(OBJECT(mms), "watchdog", &mms->watchdog,
343                             TYPE_CMSDK_APB_WATCHDOG);
344     qdev_prop_set_uint32(DEVICE(&mms->watchdog), "wdogclk-frq", SYSCLK_FRQ);
345     sysbus_realize(SYS_BUS_DEVICE(&mms->watchdog), &error_fatal);
346     sysbus_connect_irq(SYS_BUS_DEVICE(&mms->watchdog), 0,
347                        qdev_get_gpio_in_named(armv7m, "NMI", 0));
348     sysbus_mmio_map(SYS_BUS_DEVICE(&mms->watchdog), 0, 0x40008000);
349 
350     /* FPGA APB subsystem */
351     object_initialize_child(OBJECT(mms), "scc", &mms->scc, TYPE_MPS2_SCC);
352     sccdev = DEVICE(&mms->scc);
353     qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2);
354     qdev_prop_set_uint32(sccdev, "scc-aid", 0x00200008);
355     qdev_prop_set_uint32(sccdev, "scc-id", mmc->scc_id);
356     sysbus_realize(SYS_BUS_DEVICE(&mms->scc), &error_fatal);
357     sysbus_mmio_map(SYS_BUS_DEVICE(sccdev), 0, 0x4002f000);
358     object_initialize_child(OBJECT(mms), "fpgaio",
359                             &mms->fpgaio, TYPE_MPS2_FPGAIO);
360     qdev_prop_set_uint32(DEVICE(&mms->fpgaio), "prescale-clk", 25000000);
361     sysbus_realize(SYS_BUS_DEVICE(&mms->fpgaio), &error_fatal);
362     sysbus_mmio_map(SYS_BUS_DEVICE(&mms->fpgaio), 0, 0x40028000);
363     sysbus_create_simple(TYPE_PL022, 0x40025000,        /* External ADC */
364                          qdev_get_gpio_in(armv7m, 22));
365     for (i = 0; i < 2; i++) {
366         static const int spi_irqno[] = {11, 24};
367         static const hwaddr spibase[] = {0x40020000,    /* APB */
368                                          0x40021000,    /* LCD */
369                                          0x40026000,    /* Shield0 */
370                                          0x40027000};   /* Shield1 */
371         DeviceState *orgate_dev;
372         Object *orgate;
373         int j;
374 
375         orgate = object_new(TYPE_OR_IRQ);
376         object_property_set_int(orgate, "num-lines", 2, &error_fatal);
377         orgate_dev = DEVICE(orgate);
378         qdev_realize(orgate_dev, NULL, &error_fatal);
379         qdev_connect_gpio_out(orgate_dev, 0,
380                               qdev_get_gpio_in(armv7m, spi_irqno[i]));
381         for (j = 0; j < 2; j++) {
382             sysbus_create_simple(TYPE_PL022, spibase[2 * i + j],
383                                  qdev_get_gpio_in(orgate_dev, j));
384         }
385     }
386     for (i = 0; i < 4; i++) {
387         static const hwaddr i2cbase[] = {0x40022000,    /* Touch */
388                                          0x40023000,    /* Audio */
389                                          0x40029000,    /* Shield0 */
390                                          0x4002a000};   /* Shield1 */
391         sysbus_create_simple(TYPE_ARM_SBCON_I2C, i2cbase[i], NULL);
392     }
393     create_unimplemented_device("i2s", 0x40024000, 0x400);
394 
395     /* In hardware this is a LAN9220; the LAN9118 is software compatible
396      * except that it doesn't support the checksum-offload feature.
397      */
398     lan9118_init(&nd_table[0], mmc->ethernet_base,
399                  qdev_get_gpio_in(armv7m,
400                                   mmc->fpga_type == FPGA_AN511 ? 47 : 13));
401 
402     system_clock_scale = NANOSECONDS_PER_SECOND / SYSCLK_FRQ;
403 
404     armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
405                        0x400000);
406 }
407 
408 static void mps2_class_init(ObjectClass *oc, void *data)
409 {
410     MachineClass *mc = MACHINE_CLASS(oc);
411 
412     mc->init = mps2_common_init;
413     mc->max_cpus = 1;
414     mc->default_ram_size = 16 * MiB;
415     mc->default_ram_id = "mps.ram";
416 }
417 
418 static void mps2_an385_class_init(ObjectClass *oc, void *data)
419 {
420     MachineClass *mc = MACHINE_CLASS(oc);
421     MPS2MachineClass *mmc = MPS2_MACHINE_CLASS(oc);
422 
423     mc->desc = "ARM MPS2 with AN385 FPGA image for Cortex-M3";
424     mmc->fpga_type = FPGA_AN385;
425     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
426     mmc->scc_id = 0x41043850;
427     mmc->psram_base = 0x21000000;
428     mmc->ethernet_base = 0x40200000;
429     mmc->has_block_ram = true;
430 }
431 
432 static void mps2_an386_class_init(ObjectClass *oc, void *data)
433 {
434     MachineClass *mc = MACHINE_CLASS(oc);
435     MPS2MachineClass *mmc = MPS2_MACHINE_CLASS(oc);
436 
437     mc->desc = "ARM MPS2 with AN386 FPGA image for Cortex-M4";
438     mmc->fpga_type = FPGA_AN386;
439     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m4");
440     mmc->scc_id = 0x41043860;
441     mmc->psram_base = 0x21000000;
442     mmc->ethernet_base = 0x40200000;
443     mmc->has_block_ram = true;
444 }
445 
446 static void mps2_an500_class_init(ObjectClass *oc, void *data)
447 {
448     MachineClass *mc = MACHINE_CLASS(oc);
449     MPS2MachineClass *mmc = MPS2_MACHINE_CLASS(oc);
450 
451     mc->desc = "ARM MPS2 with AN500 FPGA image for Cortex-M7";
452     mmc->fpga_type = FPGA_AN500;
453     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m7");
454     mmc->scc_id = 0x41045000;
455     mmc->psram_base = 0x60000000;
456     mmc->ethernet_base = 0xa0000000;
457     mmc->has_block_ram = false;
458 }
459 
460 static void mps2_an511_class_init(ObjectClass *oc, void *data)
461 {
462     MachineClass *mc = MACHINE_CLASS(oc);
463     MPS2MachineClass *mmc = MPS2_MACHINE_CLASS(oc);
464 
465     mc->desc = "ARM MPS2 with AN511 DesignStart FPGA image for Cortex-M3";
466     mmc->fpga_type = FPGA_AN511;
467     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
468     mmc->scc_id = 0x41045110;
469     mmc->psram_base = 0x21000000;
470     mmc->ethernet_base = 0x40200000;
471     mmc->has_block_ram = false;
472 }
473 
474 static const TypeInfo mps2_info = {
475     .name = TYPE_MPS2_MACHINE,
476     .parent = TYPE_MACHINE,
477     .abstract = true,
478     .instance_size = sizeof(MPS2MachineState),
479     .class_size = sizeof(MPS2MachineClass),
480     .class_init = mps2_class_init,
481 };
482 
483 static const TypeInfo mps2_an385_info = {
484     .name = TYPE_MPS2_AN385_MACHINE,
485     .parent = TYPE_MPS2_MACHINE,
486     .class_init = mps2_an385_class_init,
487 };
488 
489 static const TypeInfo mps2_an386_info = {
490     .name = TYPE_MPS2_AN386_MACHINE,
491     .parent = TYPE_MPS2_MACHINE,
492     .class_init = mps2_an386_class_init,
493 };
494 
495 static const TypeInfo mps2_an500_info = {
496     .name = TYPE_MPS2_AN500_MACHINE,
497     .parent = TYPE_MPS2_MACHINE,
498     .class_init = mps2_an500_class_init,
499 };
500 
501 static const TypeInfo mps2_an511_info = {
502     .name = TYPE_MPS2_AN511_MACHINE,
503     .parent = TYPE_MPS2_MACHINE,
504     .class_init = mps2_an511_class_init,
505 };
506 
507 static void mps2_machine_init(void)
508 {
509     type_register_static(&mps2_info);
510     type_register_static(&mps2_an385_info);
511     type_register_static(&mps2_an386_info);
512     type_register_static(&mps2_an500_info);
513     type_register_static(&mps2_an511_info);
514 }
515 
516 type_init(mps2_machine_init);
517