xref: /openbmc/qemu/hw/arm/aspeed_ast10x0.c (revision 44602af8)
1 /*
2  * ASPEED Ast10x0 SoC
3  *
4  * Copyright (C) 2022 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 Ast10x0.
10  */
11 
12 #include "qemu/osdep.h"
13 #include "qapi/error.h"
14 #include "exec/address-spaces.h"
15 #include "sysemu/sysemu.h"
16 #include "hw/qdev-clock.h"
17 #include "hw/misc/unimp.h"
18 #include "hw/arm/aspeed_soc.h"
19 
20 #define ASPEED_SOC_IOMEM_SIZE 0x00200000
21 
22 static const hwaddr aspeed_soc_ast1030_memmap[] = {
23     [ASPEED_DEV_SRAM]      = 0x00000000,
24     [ASPEED_DEV_SBC]       = 0x79000000,
25     [ASPEED_DEV_IOMEM]     = 0x7E600000,
26     [ASPEED_DEV_PWM]       = 0x7E610000,
27     [ASPEED_DEV_FMC]       = 0x7E620000,
28     [ASPEED_DEV_SPI1]      = 0x7E630000,
29     [ASPEED_DEV_SPI2]      = 0x7E640000,
30     [ASPEED_DEV_SCU]       = 0x7E6E2000,
31     [ASPEED_DEV_ADC]       = 0x7E6E9000,
32     [ASPEED_DEV_SBC]       = 0x7E6F2000,
33     [ASPEED_DEV_GPIO]      = 0x7E780000,
34     [ASPEED_DEV_TIMER1]    = 0x7E782000,
35     [ASPEED_DEV_UART1]     = 0x7E783000,
36     [ASPEED_DEV_UART2]     = 0x7E78D000,
37     [ASPEED_DEV_UART3]     = 0x7E78E000,
38     [ASPEED_DEV_UART4]     = 0x7E78F000,
39     [ASPEED_DEV_UART5]     = 0x7E784000,
40     [ASPEED_DEV_UART6]     = 0x7E790000,
41     [ASPEED_DEV_UART7]     = 0x7E790100,
42     [ASPEED_DEV_UART8]     = 0x7E790200,
43     [ASPEED_DEV_UART9]     = 0x7E790300,
44     [ASPEED_DEV_UART10]    = 0x7E790400,
45     [ASPEED_DEV_UART11]    = 0x7E790500,
46     [ASPEED_DEV_UART12]    = 0x7E790600,
47     [ASPEED_DEV_UART13]    = 0x7E790700,
48     [ASPEED_DEV_WDT]       = 0x7E785000,
49     [ASPEED_DEV_LPC]       = 0x7E789000,
50     [ASPEED_DEV_PECI]      = 0x7E78B000,
51     [ASPEED_DEV_I2C]       = 0x7E7B0000,
52 };
53 
54 static const int aspeed_soc_ast1030_irqmap[] = {
55     [ASPEED_DEV_UART1]     = 47,
56     [ASPEED_DEV_UART2]     = 48,
57     [ASPEED_DEV_UART3]     = 49,
58     [ASPEED_DEV_UART4]     = 50,
59     [ASPEED_DEV_UART5]     = 8,
60     [ASPEED_DEV_UART6]     = 57,
61     [ASPEED_DEV_UART7]     = 58,
62     [ASPEED_DEV_UART8]     = 59,
63     [ASPEED_DEV_UART9]     = 60,
64     [ASPEED_DEV_UART10]    = 61,
65     [ASPEED_DEV_UART11]    = 62,
66     [ASPEED_DEV_UART12]    = 63,
67     [ASPEED_DEV_UART13]    = 64,
68     [ASPEED_DEV_GPIO]      = 11,
69     [ASPEED_DEV_TIMER1]    = 16,
70     [ASPEED_DEV_TIMER2]    = 17,
71     [ASPEED_DEV_TIMER3]    = 18,
72     [ASPEED_DEV_TIMER4]    = 19,
73     [ASPEED_DEV_TIMER5]    = 20,
74     [ASPEED_DEV_TIMER6]    = 21,
75     [ASPEED_DEV_TIMER7]    = 22,
76     [ASPEED_DEV_TIMER8]    = 23,
77     [ASPEED_DEV_WDT]       = 24,
78     [ASPEED_DEV_LPC]       = 35,
79     [ASPEED_DEV_PECI]      = 38,
80     [ASPEED_DEV_FMC]       = 39,
81     [ASPEED_DEV_PWM]       = 44,
82     [ASPEED_DEV_ADC]       = 46,
83     [ASPEED_DEV_SPI1]      = 65,
84     [ASPEED_DEV_SPI2]      = 66,
85     [ASPEED_DEV_I2C]       = 110, /* 110 ~ 123 */
86     [ASPEED_DEV_KCS]       = 138, /* 138 -> 142 */
87 };
88 
89 static qemu_irq aspeed_soc_ast1030_get_irq(AspeedSoCState *s, int dev)
90 {
91     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
92 
93     return qdev_get_gpio_in(DEVICE(&s->armv7m), sc->irqmap[dev]);
94 }
95 
96 static void aspeed_soc_ast1030_init(Object *obj)
97 {
98     AspeedSoCState *s = ASPEED_SOC(obj);
99     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
100     char socname[8];
101     char typename[64];
102     int i;
103 
104     if (sscanf(sc->name, "%7s", socname) != 1) {
105         g_assert_not_reached();
106     }
107 
108     object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M);
109 
110     s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0);
111 
112     snprintf(typename, sizeof(typename), "aspeed.scu-%s", socname);
113     object_initialize_child(obj, "scu", &s->scu, typename);
114     qdev_prop_set_uint32(DEVICE(&s->scu), "silicon-rev", sc->silicon_rev);
115 
116     object_property_add_alias(obj, "hw-strap1", OBJECT(&s->scu), "hw-strap1");
117     object_property_add_alias(obj, "hw-strap2", OBJECT(&s->scu), "hw-strap2");
118 
119     snprintf(typename, sizeof(typename), "aspeed.i2c-%s", socname);
120     object_initialize_child(obj, "i2c", &s->i2c, typename);
121 
122     snprintf(typename, sizeof(typename), "aspeed.timer-%s", socname);
123     object_initialize_child(obj, "timerctrl", &s->timerctrl, typename);
124 
125     snprintf(typename, sizeof(typename), "aspeed.adc-%s", socname);
126     object_initialize_child(obj, "adc", &s->adc, typename);
127 
128     snprintf(typename, sizeof(typename), "aspeed.fmc-%s", socname);
129     object_initialize_child(obj, "fmc", &s->fmc, typename);
130 
131     for (i = 0; i < sc->spis_num; i++) {
132         snprintf(typename, sizeof(typename), "aspeed.spi%d-%s", i + 1, socname);
133         object_initialize_child(obj, "spi[*]", &s->spi[i], typename);
134     }
135 
136     object_initialize_child(obj, "lpc", &s->lpc, TYPE_ASPEED_LPC);
137 
138     object_initialize_child(obj, "peci", &s->peci, TYPE_ASPEED_PECI);
139 
140     object_initialize_child(obj, "sbc", &s->sbc, TYPE_ASPEED_SBC);
141 
142     for (i = 0; i < sc->wdts_num; i++) {
143         snprintf(typename, sizeof(typename), "aspeed.wdt-%s", socname);
144         object_initialize_child(obj, "wdt[*]", &s->wdt[i], typename);
145     }
146 
147     for (i = 0; i < sc->uarts_num; i++) {
148         object_initialize_child(obj, "uart[*]", &s->uart[i], TYPE_SERIAL_MM);
149     }
150 
151     snprintf(typename, sizeof(typename), "aspeed.gpio-%s", socname);
152     object_initialize_child(obj, "gpio", &s->gpio, typename);
153 
154     object_initialize_child(obj, "iomem", &s->iomem, TYPE_UNIMPLEMENTED_DEVICE);
155     object_initialize_child(obj, "sbc-unimplemented", &s->sbc_unimplemented,
156                             TYPE_UNIMPLEMENTED_DEVICE);
157 }
158 
159 static void aspeed_soc_ast1030_realize(DeviceState *dev_soc, Error **errp)
160 {
161     AspeedSoCState *s = ASPEED_SOC(dev_soc);
162     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
163     DeviceState *armv7m;
164     Error *err = NULL;
165     int i;
166     g_autofree char *sram_name = NULL;
167 
168     if (!clock_has_source(s->sysclk)) {
169         error_setg(errp, "sysclk clock must be wired up by the board code");
170         return;
171     }
172 
173     /* General I/O memory space to catch all unimplemented device */
174     aspeed_mmio_map_unimplemented(s, SYS_BUS_DEVICE(&s->iomem), "aspeed.io",
175                                   sc->memmap[ASPEED_DEV_IOMEM],
176                                   ASPEED_SOC_IOMEM_SIZE);
177     aspeed_mmio_map_unimplemented(s, SYS_BUS_DEVICE(&s->sbc_unimplemented),
178                                   "aspeed.sbc", sc->memmap[ASPEED_DEV_SBC],
179                                   0x40000);
180 
181     /* AST1030 CPU Core */
182     armv7m = DEVICE(&s->armv7m);
183     qdev_prop_set_uint32(armv7m, "num-irq", 256);
184     qdev_prop_set_string(armv7m, "cpu-type", sc->cpu_type);
185     qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk);
186     object_property_set_link(OBJECT(&s->armv7m), "memory",
187                              OBJECT(s->memory), &error_abort);
188     sysbus_realize(SYS_BUS_DEVICE(&s->armv7m), &error_abort);
189 
190     /* Internal SRAM */
191     sram_name = g_strdup_printf("aspeed.sram.%d",
192                                 CPU(s->armv7m.cpu)->cpu_index);
193     memory_region_init_ram(&s->sram, OBJECT(s), sram_name, sc->sram_size, &err);
194     if (err != NULL) {
195         error_propagate(errp, err);
196         return;
197     }
198     memory_region_add_subregion(s->memory,
199                                 sc->memmap[ASPEED_DEV_SRAM],
200                                 &s->sram);
201 
202     /* SCU */
203     if (!sysbus_realize(SYS_BUS_DEVICE(&s->scu), errp)) {
204         return;
205     }
206     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->scu), 0, sc->memmap[ASPEED_DEV_SCU]);
207 
208     /* I2C */
209 
210     object_property_set_link(OBJECT(&s->i2c), "dram", OBJECT(&s->sram),
211                              &error_abort);
212     if (!sysbus_realize(SYS_BUS_DEVICE(&s->i2c), errp)) {
213         return;
214     }
215     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->i2c), 0, sc->memmap[ASPEED_DEV_I2C]);
216     for (i = 0; i < ASPEED_I2C_GET_CLASS(&s->i2c)->num_busses; i++) {
217         qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->armv7m),
218                                         sc->irqmap[ASPEED_DEV_I2C] + i);
219         /* The AST1030 I2C controller has one IRQ per bus. */
220         sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c.busses[i]), 0, irq);
221     }
222 
223     /* PECI */
224     if (!sysbus_realize(SYS_BUS_DEVICE(&s->peci), errp)) {
225         return;
226     }
227     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->peci), 0,
228                     sc->memmap[ASPEED_DEV_PECI]);
229     sysbus_connect_irq(SYS_BUS_DEVICE(&s->peci), 0,
230                        aspeed_soc_get_irq(s, ASPEED_DEV_PECI));
231 
232     /* LPC */
233     if (!sysbus_realize(SYS_BUS_DEVICE(&s->lpc), errp)) {
234         return;
235     }
236     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->lpc), 0, sc->memmap[ASPEED_DEV_LPC]);
237 
238     /* Connect the LPC IRQ to the GIC. It is otherwise unused. */
239     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 0,
240                        aspeed_soc_get_irq(s, ASPEED_DEV_LPC));
241 
242     /*
243      * On the AST1030 LPC subdevice IRQs are connected straight to the GIC.
244      */
245     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_1,
246                        qdev_get_gpio_in(DEVICE(&s->armv7m),
247                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_1));
248 
249     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_2,
250                        qdev_get_gpio_in(DEVICE(&s->armv7m),
251                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_2));
252 
253     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_3,
254                        qdev_get_gpio_in(DEVICE(&s->armv7m),
255                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_3));
256 
257     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_4,
258                        qdev_get_gpio_in(DEVICE(&s->armv7m),
259                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_4));
260 
261     /* UART */
262     if (!aspeed_soc_uart_realize(s, errp)) {
263         return;
264     }
265 
266     /* Timer */
267     object_property_set_link(OBJECT(&s->timerctrl), "scu", OBJECT(&s->scu),
268                              &error_abort);
269     if (!sysbus_realize(SYS_BUS_DEVICE(&s->timerctrl), errp)) {
270         return;
271     }
272     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->timerctrl), 0,
273                     sc->memmap[ASPEED_DEV_TIMER1]);
274     for (i = 0; i < ASPEED_TIMER_NR_TIMERS; i++) {
275         qemu_irq irq = aspeed_soc_get_irq(s, ASPEED_DEV_TIMER1 + i);
276         sysbus_connect_irq(SYS_BUS_DEVICE(&s->timerctrl), i, irq);
277     }
278 
279     /* ADC */
280     if (!sysbus_realize(SYS_BUS_DEVICE(&s->adc), errp)) {
281         return;
282     }
283     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->adc), 0, sc->memmap[ASPEED_DEV_ADC]);
284     sysbus_connect_irq(SYS_BUS_DEVICE(&s->adc), 0,
285                        aspeed_soc_get_irq(s, ASPEED_DEV_ADC));
286 
287     /* FMC, The number of CS is set at the board level */
288     object_property_set_link(OBJECT(&s->fmc), "dram", OBJECT(&s->sram),
289             &error_abort);
290     if (!sysbus_realize(SYS_BUS_DEVICE(&s->fmc), errp)) {
291         return;
292     }
293     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->fmc), 0, sc->memmap[ASPEED_DEV_FMC]);
294     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->fmc), 1,
295                     ASPEED_SMC_GET_CLASS(&s->fmc)->flash_window_base);
296     sysbus_connect_irq(SYS_BUS_DEVICE(&s->fmc), 0,
297                        aspeed_soc_get_irq(s, ASPEED_DEV_FMC));
298 
299     /* SPI */
300     for (i = 0; i < sc->spis_num; i++) {
301         object_property_set_link(OBJECT(&s->spi[i]), "dram",
302                                  OBJECT(&s->sram), &error_abort);
303         if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
304             return;
305         }
306         aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->spi[i]), 0,
307                         sc->memmap[ASPEED_DEV_SPI1 + i]);
308         aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->spi[i]), 1,
309                         ASPEED_SMC_GET_CLASS(&s->spi[i])->flash_window_base);
310     }
311 
312     /* Secure Boot Controller */
313     if (!sysbus_realize(SYS_BUS_DEVICE(&s->sbc), errp)) {
314         return;
315     }
316     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->sbc), 0, sc->memmap[ASPEED_DEV_SBC]);
317 
318     /* Watch dog */
319     for (i = 0; i < sc->wdts_num; i++) {
320         AspeedWDTClass *awc = ASPEED_WDT_GET_CLASS(&s->wdt[i]);
321 
322         object_property_set_link(OBJECT(&s->wdt[i]), "scu", OBJECT(&s->scu),
323                                  &error_abort);
324         if (!sysbus_realize(SYS_BUS_DEVICE(&s->wdt[i]), errp)) {
325             return;
326         }
327         aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->wdt[i]), 0,
328                         sc->memmap[ASPEED_DEV_WDT] + i * awc->offset);
329     }
330 
331     /* GPIO */
332     if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio), errp)) {
333         return;
334     }
335     aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->gpio), 0,
336                     sc->memmap[ASPEED_DEV_GPIO]);
337     sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), 0,
338                        aspeed_soc_get_irq(s, ASPEED_DEV_GPIO));
339 }
340 
341 static void aspeed_soc_ast1030_class_init(ObjectClass *klass, void *data)
342 {
343     DeviceClass *dc = DEVICE_CLASS(klass);
344     AspeedSoCClass *sc = ASPEED_SOC_CLASS(dc);
345 
346     dc->realize = aspeed_soc_ast1030_realize;
347 
348     sc->name = "ast1030-a1";
349     sc->cpu_type = ARM_CPU_TYPE_NAME("cortex-m4");
350     sc->silicon_rev = AST1030_A1_SILICON_REV;
351     sc->sram_size = 0xc0000;
352     sc->spis_num = 2;
353     sc->ehcis_num = 0;
354     sc->wdts_num = 4;
355     sc->macs_num = 1;
356     sc->uarts_num = 13;
357     sc->irqmap = aspeed_soc_ast1030_irqmap;
358     sc->memmap = aspeed_soc_ast1030_memmap;
359     sc->num_cpus = 1;
360     sc->get_irq = aspeed_soc_ast1030_get_irq;
361 }
362 
363 static const TypeInfo aspeed_soc_ast1030_type_info = {
364     .name          = "ast1030-a1",
365     .parent        = TYPE_ASPEED_SOC,
366     .instance_size = sizeof(AspeedSoCState),
367     .instance_init = aspeed_soc_ast1030_init,
368     .class_init    = aspeed_soc_ast1030_class_init,
369     .class_size    = sizeof(AspeedSoCClass),
370 };
371 
372 static void aspeed_soc_register_types(void)
373 {
374     type_register_static(&aspeed_soc_ast1030_type_info);
375 }
376 
377 type_init(aspeed_soc_register_types)
378