xref: /qemu/hw/arm/aspeed_ast27x0.c (revision 5dd883ab0635c9f715c77cc32622e458a0724581)
1 /*
2  * ASPEED SoC 27x0 family
3  *
4  * Copyright (C) 2024 ASPEED Technology Inc.
5  *
6  * This code is licensed under the GPL version 2 or later.  See
7  * the COPYING file in the top-level directory.
8  *
9  * Implementation extracted from the AST2600 and adapted for AST27x0.
10  */
11 
12 #include "qemu/osdep.h"
13 #include "qapi/error.h"
14 #include "hw/misc/unimp.h"
15 #include "hw/arm/aspeed_soc.h"
16 #include "qemu/module.h"
17 #include "qemu/error-report.h"
18 #include "hw/i2c/aspeed_i2c.h"
19 #include "net/net.h"
20 #include "sysemu/sysemu.h"
21 #include "hw/intc/arm_gicv3.h"
22 #include "qapi/qmp/qlist.h"
23 
24 static const hwaddr aspeed_soc_ast2700_memmap[] = {
25     [ASPEED_DEV_SPI_BOOT]  =  0x400000000,
26     [ASPEED_DEV_SRAM]      =  0x10000000,
27     [ASPEED_DEV_SDMC]      =  0x12C00000,
28     [ASPEED_DEV_SCU]       =  0x12C02000,
29     [ASPEED_DEV_SCUIO]     =  0x14C02000,
30     [ASPEED_DEV_UART0]     =  0X14C33000,
31     [ASPEED_DEV_UART1]     =  0X14C33100,
32     [ASPEED_DEV_UART2]     =  0X14C33200,
33     [ASPEED_DEV_UART3]     =  0X14C33300,
34     [ASPEED_DEV_UART4]     =  0X12C1A000,
35     [ASPEED_DEV_UART5]     =  0X14C33400,
36     [ASPEED_DEV_UART6]     =  0X14C33500,
37     [ASPEED_DEV_UART7]     =  0X14C33600,
38     [ASPEED_DEV_UART8]     =  0X14C33700,
39     [ASPEED_DEV_UART9]     =  0X14C33800,
40     [ASPEED_DEV_UART10]    =  0X14C33900,
41     [ASPEED_DEV_UART11]    =  0X14C33A00,
42     [ASPEED_DEV_UART12]    =  0X14C33B00,
43     [ASPEED_DEV_WDT]       =  0x14C37000,
44     [ASPEED_DEV_VUART]     =  0X14C30000,
45     [ASPEED_DEV_FMC]       =  0x14000000,
46     [ASPEED_DEV_SPI0]      =  0x14010000,
47     [ASPEED_DEV_SPI1]      =  0x14020000,
48     [ASPEED_DEV_SPI2]      =  0x14030000,
49     [ASPEED_DEV_SDRAM]     =  0x400000000,
50     [ASPEED_DEV_MII1]      =  0x14040000,
51     [ASPEED_DEV_MII2]      =  0x14040008,
52     [ASPEED_DEV_MII3]      =  0x14040010,
53     [ASPEED_DEV_ETH1]      =  0x14050000,
54     [ASPEED_DEV_ETH2]      =  0x14060000,
55     [ASPEED_DEV_ETH3]      =  0x14070000,
56     [ASPEED_DEV_EMMC]      =  0x12090000,
57     [ASPEED_DEV_INTC]      =  0x12100000,
58     [ASPEED_DEV_SLI]       =  0x12C17000,
59     [ASPEED_DEV_SLIIO]     =  0x14C1E000,
60     [ASPEED_GIC_DIST]      =  0x12200000,
61     [ASPEED_GIC_REDIST]    =  0x12280000,
62 };
63 
64 #define AST2700_MAX_IRQ 288
65 
66 /* Shared Peripheral Interrupt values below are offset by -32 from datasheet */
67 static const int aspeed_soc_ast2700_irqmap[] = {
68     [ASPEED_DEV_UART0]     = 132,
69     [ASPEED_DEV_UART1]     = 132,
70     [ASPEED_DEV_UART2]     = 132,
71     [ASPEED_DEV_UART3]     = 132,
72     [ASPEED_DEV_UART4]     = 8,
73     [ASPEED_DEV_UART5]     = 132,
74     [ASPEED_DEV_UART6]     = 132,
75     [ASPEED_DEV_UART7]     = 132,
76     [ASPEED_DEV_UART8]     = 132,
77     [ASPEED_DEV_UART9]     = 132,
78     [ASPEED_DEV_UART10]    = 132,
79     [ASPEED_DEV_UART11]    = 132,
80     [ASPEED_DEV_UART12]    = 132,
81     [ASPEED_DEV_FMC]       = 131,
82     [ASPEED_DEV_SDMC]      = 0,
83     [ASPEED_DEV_SCU]       = 12,
84     [ASPEED_DEV_ADC]       = 130,
85     [ASPEED_DEV_XDMA]      = 5,
86     [ASPEED_DEV_EMMC]      = 15,
87     [ASPEED_DEV_GPIO]      = 11,
88     [ASPEED_DEV_GPIO_1_8V] = 130,
89     [ASPEED_DEV_RTC]       = 13,
90     [ASPEED_DEV_TIMER1]    = 16,
91     [ASPEED_DEV_TIMER2]    = 17,
92     [ASPEED_DEV_TIMER3]    = 18,
93     [ASPEED_DEV_TIMER4]    = 19,
94     [ASPEED_DEV_TIMER5]    = 20,
95     [ASPEED_DEV_TIMER6]    = 21,
96     [ASPEED_DEV_TIMER7]    = 22,
97     [ASPEED_DEV_TIMER8]    = 23,
98     [ASPEED_DEV_WDT]       = 131,
99     [ASPEED_DEV_PWM]       = 131,
100     [ASPEED_DEV_LPC]       = 128,
101     [ASPEED_DEV_IBT]       = 128,
102     [ASPEED_DEV_I2C]       = 130,
103     [ASPEED_DEV_PECI]      = 133,
104     [ASPEED_DEV_ETH1]      = 132,
105     [ASPEED_DEV_ETH2]      = 132,
106     [ASPEED_DEV_ETH3]      = 132,
107     [ASPEED_DEV_HACE]      = 4,
108     [ASPEED_DEV_KCS]       = 128,
109     [ASPEED_DEV_DP]        = 28,
110     [ASPEED_DEV_I3C]       = 131,
111 };
112 
113 /* GICINT 128 */
114 static const int aspeed_soc_ast2700_gic128_intcmap[] = {
115     [ASPEED_DEV_LPC]       = 0,
116     [ASPEED_DEV_IBT]       = 2,
117     [ASPEED_DEV_KCS]       = 4,
118 };
119 
120 /* GICINT 130 */
121 static const int aspeed_soc_ast2700_gic130_intcmap[] = {
122     [ASPEED_DEV_I2C]        = 0,
123     [ASPEED_DEV_ADC]        = 16,
124     [ASPEED_DEV_GPIO_1_8V]  = 18,
125 };
126 
127 /* GICINT 131 */
128 static const int aspeed_soc_ast2700_gic131_intcmap[] = {
129     [ASPEED_DEV_I3C]       = 0,
130     [ASPEED_DEV_WDT]       = 16,
131     [ASPEED_DEV_FMC]       = 25,
132     [ASPEED_DEV_PWM]       = 29,
133 };
134 
135 /* GICINT 132 */
136 static const int aspeed_soc_ast2700_gic132_intcmap[] = {
137     [ASPEED_DEV_ETH1]      = 0,
138     [ASPEED_DEV_ETH2]      = 1,
139     [ASPEED_DEV_ETH3]      = 2,
140     [ASPEED_DEV_UART0]     = 7,
141     [ASPEED_DEV_UART1]     = 8,
142     [ASPEED_DEV_UART2]     = 9,
143     [ASPEED_DEV_UART3]     = 10,
144     [ASPEED_DEV_UART5]     = 11,
145     [ASPEED_DEV_UART6]     = 12,
146     [ASPEED_DEV_UART7]     = 13,
147     [ASPEED_DEV_UART8]     = 14,
148     [ASPEED_DEV_UART9]     = 15,
149     [ASPEED_DEV_UART10]    = 16,
150     [ASPEED_DEV_UART11]    = 17,
151     [ASPEED_DEV_UART12]    = 18,
152 };
153 
154 /* GICINT 133 */
155 static const int aspeed_soc_ast2700_gic133_intcmap[] = {
156     [ASPEED_DEV_PECI]      = 4,
157 };
158 
159 /* GICINT 128 ~ 136 */
160 struct gic_intc_irq_info {
161     int irq;
162     const int *ptr;
163 };
164 
165 static const struct gic_intc_irq_info aspeed_soc_ast2700_gic_intcmap[] = {
166     {128,  aspeed_soc_ast2700_gic128_intcmap},
167     {129,  NULL},
168     {130,  aspeed_soc_ast2700_gic130_intcmap},
169     {131,  aspeed_soc_ast2700_gic131_intcmap},
170     {132,  aspeed_soc_ast2700_gic132_intcmap},
171     {133,  aspeed_soc_ast2700_gic133_intcmap},
172     {134,  NULL},
173     {135,  NULL},
174     {136,  NULL},
175 };
176 
177 static qemu_irq aspeed_soc_ast2700_get_irq(AspeedSoCState *s, int dev)
178 {
179     Aspeed27x0SoCState *a = ASPEED27X0_SOC(s);
180     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
181     int i;
182 
183     for (i = 0; i < ARRAY_SIZE(aspeed_soc_ast2700_gic_intcmap); i++) {
184         if (sc->irqmap[dev] == aspeed_soc_ast2700_gic_intcmap[i].irq) {
185             assert(aspeed_soc_ast2700_gic_intcmap[i].ptr);
186             return qdev_get_gpio_in(DEVICE(&a->intc.orgates[i]),
187                 aspeed_soc_ast2700_gic_intcmap[i].ptr[dev]);
188         }
189     }
190 
191     return qdev_get_gpio_in(DEVICE(&a->gic), sc->irqmap[dev]);
192 }
193 
194 static void aspeed_soc_ast2700_init(Object *obj)
195 {
196     Aspeed27x0SoCState *a = ASPEED27X0_SOC(obj);
197     AspeedSoCState *s = ASPEED_SOC(obj);
198     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
199     int i;
200     char socname[8];
201     char typename[64];
202 
203     if (sscanf(sc->name, "%7s", socname) != 1) {
204         g_assert_not_reached();
205     }
206 
207     for (i = 0; i < sc->num_cpus; i++) {
208         object_initialize_child(obj, "cpu[*]", &a->cpu[i],
209                                 aspeed_soc_cpu_type(sc));
210     }
211 
212     object_initialize_child(obj, "gic", &a->gic, gicv3_class_name());
213 
214     object_initialize_child(obj, "scu", &s->scu, TYPE_ASPEED_2700_SCU);
215     qdev_prop_set_uint32(DEVICE(&s->scu), "silicon-rev",
216                          sc->silicon_rev);
217     object_property_add_alias(obj, "hw-strap1", OBJECT(&s->scu),
218                               "hw-strap1");
219     object_property_add_alias(obj, "hw-strap2", OBJECT(&s->scu),
220                               "hw-strap2");
221     object_property_add_alias(obj, "hw-prot-key", OBJECT(&s->scu),
222                               "hw-prot-key");
223 
224     object_initialize_child(obj, "scuio", &s->scuio, TYPE_ASPEED_2700_SCUIO);
225     qdev_prop_set_uint32(DEVICE(&s->scuio), "silicon-rev",
226                          sc->silicon_rev);
227 
228     snprintf(typename, sizeof(typename), "aspeed.fmc-%s", socname);
229     object_initialize_child(obj, "fmc", &s->fmc, typename);
230 
231     for (i = 0; i < sc->spis_num; i++) {
232         snprintf(typename, sizeof(typename), "aspeed.spi%d-%s", i, socname);
233         object_initialize_child(obj, "spi[*]", &s->spi[i], typename);
234     }
235 
236     snprintf(typename, sizeof(typename), "aspeed.sdmc-%s", socname);
237     object_initialize_child(obj, "sdmc", &s->sdmc, typename);
238     object_property_add_alias(obj, "ram-size", OBJECT(&s->sdmc),
239                               "ram-size");
240 
241     for (i = 0; i < sc->wdts_num; i++) {
242         snprintf(typename, sizeof(typename), "aspeed.wdt-%s", socname);
243         object_initialize_child(obj, "wdt[*]", &s->wdt[i], typename);
244     }
245 
246     for (i = 0; i < sc->macs_num; i++) {
247         object_initialize_child(obj, "ftgmac100[*]", &s->ftgmac100[i],
248                                 TYPE_FTGMAC100);
249 
250         object_initialize_child(obj, "mii[*]", &s->mii[i], TYPE_ASPEED_MII);
251     }
252 
253     for (i = 0; i < sc->uarts_num; i++) {
254         object_initialize_child(obj, "uart[*]", &s->uart[i], TYPE_SERIAL_MM);
255     }
256 
257     object_initialize_child(obj, "sli", &s->sli, TYPE_ASPEED_2700_SLI);
258     object_initialize_child(obj, "sliio", &s->sliio, TYPE_ASPEED_2700_SLIIO);
259     object_initialize_child(obj, "intc", &a->intc, TYPE_ASPEED_2700_INTC);
260 }
261 
262 /*
263  * ASPEED ast2700 has 0x0 as cluster ID
264  *
265  * https://developer.arm.com/documentation/100236/0100/register-descriptions/aarch64-system-registers/multiprocessor-affinity-register--el1
266  */
267 static uint64_t aspeed_calc_affinity(int cpu)
268 {
269     return (0x0 << ARM_AFF1_SHIFT) | cpu;
270 }
271 
272 static bool aspeed_soc_ast2700_gic_realize(DeviceState *dev, Error **errp)
273 {
274     Aspeed27x0SoCState *a = ASPEED27X0_SOC(dev);
275     AspeedSoCState *s = ASPEED_SOC(dev);
276     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
277     SysBusDevice *gicbusdev;
278     DeviceState *gicdev;
279     QList *redist_region_count;
280     int i;
281 
282     gicbusdev = SYS_BUS_DEVICE(&a->gic);
283     gicdev = DEVICE(&a->gic);
284     qdev_prop_set_uint32(gicdev, "revision", 3);
285     qdev_prop_set_uint32(gicdev, "num-cpu", sc->num_cpus);
286     qdev_prop_set_uint32(gicdev, "num-irq", AST2700_MAX_IRQ);
287 
288     redist_region_count = qlist_new();
289     qlist_append_int(redist_region_count, sc->num_cpus);
290     qdev_prop_set_array(gicdev, "redist-region-count", redist_region_count);
291 
292     if (!sysbus_realize(gicbusdev, errp)) {
293         return false;
294     }
295     sysbus_mmio_map(gicbusdev, 0, sc->memmap[ASPEED_GIC_DIST]);
296     sysbus_mmio_map(gicbusdev, 1, sc->memmap[ASPEED_GIC_REDIST]);
297 
298     for (i = 0; i < sc->num_cpus; i++) {
299         DeviceState *cpudev = DEVICE(&a->cpu[i]);
300         int NUM_IRQS = 256, ARCH_GIC_MAINT_IRQ = 9, VIRTUAL_PMU_IRQ = 7;
301         int ppibase = NUM_IRQS + i * GIC_INTERNAL + GIC_NR_SGIS;
302 
303         const int timer_irq[] = {
304             [GTIMER_PHYS] = 14,
305             [GTIMER_VIRT] = 11,
306             [GTIMER_HYP]  = 10,
307             [GTIMER_SEC]  = 13,
308         };
309         int j;
310 
311         for (j = 0; j < ARRAY_SIZE(timer_irq); j++) {
312             qdev_connect_gpio_out(cpudev, j,
313                     qdev_get_gpio_in(gicdev, ppibase + timer_irq[j]));
314         }
315 
316         qemu_irq irq = qdev_get_gpio_in(gicdev,
317                                         ppibase + ARCH_GIC_MAINT_IRQ);
318         qdev_connect_gpio_out_named(cpudev, "gicv3-maintenance-interrupt",
319                                     0, irq);
320         qdev_connect_gpio_out_named(cpudev, "pmu-interrupt", 0,
321                 qdev_get_gpio_in(gicdev, ppibase + VIRTUAL_PMU_IRQ));
322 
323         sysbus_connect_irq(gicbusdev, i, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
324         sysbus_connect_irq(gicbusdev, i + sc->num_cpus,
325                            qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
326         sysbus_connect_irq(gicbusdev, i + 2 * sc->num_cpus,
327                            qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
328         sysbus_connect_irq(gicbusdev, i + 3 * sc->num_cpus,
329                            qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
330     }
331 
332     return true;
333 }
334 
335 static void aspeed_soc_ast2700_realize(DeviceState *dev, Error **errp)
336 {
337     int i;
338     Aspeed27x0SoCState *a = ASPEED27X0_SOC(dev);
339     AspeedSoCState *s = ASPEED_SOC(dev);
340     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
341     AspeedINTCClass *ic = ASPEED_INTC_GET_CLASS(&a->intc);
342     g_autofree char *sram_name = NULL;
343 
344     /* Default boot region (SPI memory or ROMs) */
345     memory_region_init(&s->spi_boot_container, OBJECT(s),
346                        "aspeed.spi_boot_container", 0x400000000);
347     memory_region_add_subregion(s->memory, sc->memmap[ASPEED_DEV_SPI_BOOT],
348                                 &s->spi_boot_container);
349 
350     /* CPU */
351     for (i = 0; i < sc->num_cpus; i++) {
352         object_property_set_int(OBJECT(&a->cpu[i]), "mp-affinity",
353                                 aspeed_calc_affinity(i), &error_abort);
354 
355         object_property_set_int(OBJECT(&a->cpu[i]), "cntfrq", 1125000000,
356                                 &error_abort);
357         object_property_set_link(OBJECT(&a->cpu[i]), "memory",
358                                  OBJECT(s->memory), &error_abort);
359 
360         if (!qdev_realize(DEVICE(&a->cpu[i]), NULL, errp)) {
361             return;
362         }
363     }
364 
365     /* GIC */
366     if (!aspeed_soc_ast2700_gic_realize(dev, errp)) {
367         return;
368     }
369 
370     /* INTC */
371     if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc), errp)) {
372         return;
373     }
374 
375     aspeed_mmio_map(s, SYS_BUS_DEVICE(&a->intc), 0,
376                     sc->memmap[ASPEED_DEV_INTC]);
377 
378     /* GICINT orgates -> INTC -> GIC */
379     for (i = 0; i < ic->num_ints; i++) {
380         qdev_connect_gpio_out(DEVICE(&a->intc.orgates[i]), 0,
381                                 qdev_get_gpio_in(DEVICE(&a->intc), i));
382         sysbus_connect_irq(SYS_BUS_DEVICE(&a->intc), i,
383                            qdev_get_gpio_in(DEVICE(&a->gic),
384                                 aspeed_soc_ast2700_gic_intcmap[i].irq));
385     }
386 
387     /* SRAM */
388     sram_name = g_strdup_printf("aspeed.sram.%d", CPU(&a->cpu[0])->cpu_index);
389     if (!memory_region_init_ram(&s->sram, OBJECT(s), sram_name, sc->sram_size,
390                                  errp)) {
391         return;
392     }
393     memory_region_add_subregion(s->memory,
394                                 sc->memmap[ASPEED_DEV_SRAM], &s->sram);
395 
396     /* SCU */
397     if (!sysbus_realize(SYS_BUS_DEVICE(&s->scu), errp)) {
398         return;
399     }
400     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->scu), 0, sc->memmap[ASPEED_DEV_SCU]);
401 
402     /* SCU1 */
403     if (!sysbus_realize(SYS_BUS_DEVICE(&s->scuio), errp)) {
404         return;
405     }
406     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->scuio), 0,
407                     sc->memmap[ASPEED_DEV_SCUIO]);
408 
409     /* UART */
410     if (!aspeed_soc_uart_realize(s, errp)) {
411         return;
412     }
413 
414     /* FMC, The number of CS is set at the board level */
415     object_property_set_int(OBJECT(&s->fmc), "dram-base",
416                             sc->memmap[ASPEED_DEV_SDRAM],
417                             &error_abort);
418     object_property_set_link(OBJECT(&s->fmc), "dram", OBJECT(s->dram_mr),
419                              &error_abort);
420     if (!sysbus_realize(SYS_BUS_DEVICE(&s->fmc), errp)) {
421         return;
422     }
423     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->fmc), 0, sc->memmap[ASPEED_DEV_FMC]);
424     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->fmc), 1,
425                     ASPEED_SMC_GET_CLASS(&s->fmc)->flash_window_base);
426     sysbus_connect_irq(SYS_BUS_DEVICE(&s->fmc), 0,
427                        aspeed_soc_get_irq(s, ASPEED_DEV_FMC));
428 
429     /* Set up an alias on the FMC CE0 region (boot default) */
430     MemoryRegion *fmc0_mmio = &s->fmc.flashes[0].mmio;
431     memory_region_init_alias(&s->spi_boot, OBJECT(s), "aspeed.spi_boot",
432                              fmc0_mmio, 0, memory_region_size(fmc0_mmio));
433     memory_region_add_subregion(&s->spi_boot_container, 0x0, &s->spi_boot);
434 
435     /* SPI */
436     for (i = 0; i < sc->spis_num; i++) {
437         object_property_set_link(OBJECT(&s->spi[i]), "dram",
438                                  OBJECT(s->dram_mr), &error_abort);
439         if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
440             return;
441         }
442         aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->spi[i]), 0,
443                         sc->memmap[ASPEED_DEV_SPI0 + i]);
444         aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->spi[i]), 1,
445                         ASPEED_SMC_GET_CLASS(&s->spi[i])->flash_window_base);
446     }
447 
448     /*
449      * SDMC - SDRAM Memory Controller
450      * The SDMC controller is unlocked at SPL stage.
451      * At present, only supports to emulate booting
452      * start from u-boot stage. Set SDMC controller
453      * unlocked by default. It is a temporarily solution.
454      */
455     object_property_set_bool(OBJECT(&s->sdmc), "unlocked", true,
456                                  &error_abort);
457     if (!sysbus_realize(SYS_BUS_DEVICE(&s->sdmc), errp)) {
458         return;
459     }
460     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->sdmc), 0,
461                     sc->memmap[ASPEED_DEV_SDMC]);
462 
463     /* RAM */
464     if (!aspeed_soc_dram_init(s, errp)) {
465         return;
466     }
467 
468     for (i = 0; i < sc->macs_num; i++) {
469         object_property_set_bool(OBJECT(&s->ftgmac100[i]), "aspeed", true,
470                                  &error_abort);
471         if (!sysbus_realize(SYS_BUS_DEVICE(&s->ftgmac100[i]), errp)) {
472             return;
473         }
474         aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->ftgmac100[i]), 0,
475                         sc->memmap[ASPEED_DEV_ETH1 + i]);
476         sysbus_connect_irq(SYS_BUS_DEVICE(&s->ftgmac100[i]), 0,
477                            aspeed_soc_get_irq(s, ASPEED_DEV_ETH1 + i));
478 
479         object_property_set_link(OBJECT(&s->mii[i]), "nic",
480                                  OBJECT(&s->ftgmac100[i]), &error_abort);
481         if (!sysbus_realize(SYS_BUS_DEVICE(&s->mii[i]), errp)) {
482             return;
483         }
484 
485         aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->mii[i]), 0,
486                         sc->memmap[ASPEED_DEV_MII1 + i]);
487     }
488 
489     /* Watch dog */
490     for (i = 0; i < sc->wdts_num; i++) {
491         AspeedWDTClass *awc = ASPEED_WDT_GET_CLASS(&s->wdt[i]);
492         hwaddr wdt_offset = sc->memmap[ASPEED_DEV_WDT] + i * awc->iosize;
493 
494         object_property_set_link(OBJECT(&s->wdt[i]), "scu", OBJECT(&s->scu),
495                                  &error_abort);
496         if (!sysbus_realize(SYS_BUS_DEVICE(&s->wdt[i]), errp)) {
497             return;
498         }
499         aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->wdt[i]), 0, wdt_offset);
500     }
501 
502     /* SLI */
503     if (!sysbus_realize(SYS_BUS_DEVICE(&s->sli), errp)) {
504         return;
505     }
506     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->sli), 0, sc->memmap[ASPEED_DEV_SLI]);
507 
508     if (!sysbus_realize(SYS_BUS_DEVICE(&s->sliio), errp)) {
509         return;
510     }
511     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->sliio), 0,
512                     sc->memmap[ASPEED_DEV_SLIIO]);
513 
514     create_unimplemented_device("ast2700.dpmcu", 0x11000000, 0x40000);
515     create_unimplemented_device("ast2700.iomem0", 0x12000000, 0x01000000);
516     create_unimplemented_device("ast2700.iomem1", 0x14000000, 0x01000000);
517     create_unimplemented_device("ast2700.ltpi", 0x30000000, 0x1000000);
518     create_unimplemented_device("ast2700.io", 0x0, 0x4000000);
519 }
520 
521 static void aspeed_soc_ast2700_class_init(ObjectClass *oc, void *data)
522 {
523     static const char * const valid_cpu_types[] = {
524         ARM_CPU_TYPE_NAME("cortex-a35"),
525         NULL
526     };
527     DeviceClass *dc = DEVICE_CLASS(oc);
528     AspeedSoCClass *sc = ASPEED_SOC_CLASS(oc);
529 
530     /* Reason: The Aspeed SoC can only be instantiated from a board */
531     dc->user_creatable = false;
532     dc->realize      = aspeed_soc_ast2700_realize;
533 
534     sc->name         = "ast2700-a0";
535     sc->valid_cpu_types = valid_cpu_types;
536     sc->silicon_rev  = AST2700_A0_SILICON_REV;
537     sc->sram_size    = 0x20000;
538     sc->spis_num     = 3;
539     sc->wdts_num     = 8;
540     sc->macs_num     = 1;
541     sc->uarts_num    = 13;
542     sc->num_cpus     = 4;
543     sc->uarts_base   = ASPEED_DEV_UART0;
544     sc->irqmap       = aspeed_soc_ast2700_irqmap;
545     sc->memmap       = aspeed_soc_ast2700_memmap;
546     sc->get_irq      = aspeed_soc_ast2700_get_irq;
547 }
548 
549 static const TypeInfo aspeed_soc_ast27x0_types[] = {
550     {
551         .name           = TYPE_ASPEED27X0_SOC,
552         .parent         = TYPE_ASPEED_SOC,
553         .instance_size  = sizeof(Aspeed27x0SoCState),
554         .abstract       = true,
555     }, {
556         .name           = "ast2700-a0",
557         .parent         = TYPE_ASPEED27X0_SOC,
558         .instance_init  = aspeed_soc_ast2700_init,
559         .class_init     = aspeed_soc_ast2700_class_init,
560     },
561 };
562 
563 DEFINE_TYPES(aspeed_soc_ast27x0_types)
564