xref: /openbmc/qemu/hw/arm/aspeed_ast10x0.c (revision fb08790b)
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_I2C]       = 0x7E7B0000,
51 };
52 
53 static const int aspeed_soc_ast1030_irqmap[] = {
54     [ASPEED_DEV_UART1]     = 47,
55     [ASPEED_DEV_UART2]     = 48,
56     [ASPEED_DEV_UART3]     = 49,
57     [ASPEED_DEV_UART4]     = 50,
58     [ASPEED_DEV_UART5]     = 8,
59     [ASPEED_DEV_UART6]     = 57,
60     [ASPEED_DEV_UART7]     = 58,
61     [ASPEED_DEV_UART8]     = 59,
62     [ASPEED_DEV_UART9]     = 60,
63     [ASPEED_DEV_UART10]    = 61,
64     [ASPEED_DEV_UART11]    = 62,
65     [ASPEED_DEV_UART12]    = 63,
66     [ASPEED_DEV_UART13]    = 64,
67     [ASPEED_DEV_GPIO]      = 11,
68     [ASPEED_DEV_TIMER1]    = 16,
69     [ASPEED_DEV_TIMER2]    = 17,
70     [ASPEED_DEV_TIMER3]    = 18,
71     [ASPEED_DEV_TIMER4]    = 19,
72     [ASPEED_DEV_TIMER5]    = 20,
73     [ASPEED_DEV_TIMER6]    = 21,
74     [ASPEED_DEV_TIMER7]    = 22,
75     [ASPEED_DEV_TIMER8]    = 23,
76     [ASPEED_DEV_WDT]       = 24,
77     [ASPEED_DEV_LPC]       = 35,
78     [ASPEED_DEV_FMC]       = 39,
79     [ASPEED_DEV_PWM]       = 44,
80     [ASPEED_DEV_ADC]       = 46,
81     [ASPEED_DEV_SPI1]      = 65,
82     [ASPEED_DEV_SPI2]      = 66,
83     [ASPEED_DEV_I2C]       = 110, /* 110 ~ 123 */
84     [ASPEED_DEV_KCS]       = 138, /* 138 -> 142 */
85 };
86 
87 static qemu_irq aspeed_soc_ast1030_get_irq(AspeedSoCState *s, int dev)
88 {
89     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
90 
91     return qdev_get_gpio_in(DEVICE(&s->armv7m), sc->irqmap[dev]);
92 }
93 
94 static void aspeed_soc_ast1030_init(Object *obj)
95 {
96     AspeedSoCState *s = ASPEED_SOC(obj);
97     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
98     char socname[8];
99     char typename[64];
100     int i;
101 
102     if (sscanf(sc->name, "%7s", socname) != 1) {
103         g_assert_not_reached();
104     }
105 
106     object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M);
107 
108     s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0);
109 
110     snprintf(typename, sizeof(typename), "aspeed.scu-%s", socname);
111     object_initialize_child(obj, "scu", &s->scu, typename);
112     qdev_prop_set_uint32(DEVICE(&s->scu), "silicon-rev", sc->silicon_rev);
113 
114     object_property_add_alias(obj, "hw-strap1", OBJECT(&s->scu), "hw-strap1");
115     object_property_add_alias(obj, "hw-strap2", OBJECT(&s->scu), "hw-strap2");
116 
117     snprintf(typename, sizeof(typename), "aspeed.i2c-%s", socname);
118     object_initialize_child(obj, "i2c", &s->i2c, typename);
119 
120     snprintf(typename, sizeof(typename), "aspeed.timer-%s", socname);
121     object_initialize_child(obj, "timerctrl", &s->timerctrl, typename);
122 
123     snprintf(typename, sizeof(typename), "aspeed.adc-%s", socname);
124     object_initialize_child(obj, "adc", &s->adc, typename);
125 
126     snprintf(typename, sizeof(typename), "aspeed.fmc-%s", socname);
127     object_initialize_child(obj, "fmc", &s->fmc, typename);
128 
129     for (i = 0; i < sc->spis_num; i++) {
130         snprintf(typename, sizeof(typename), "aspeed.spi%d-%s", i + 1, socname);
131         object_initialize_child(obj, "spi[*]", &s->spi[i], typename);
132     }
133 
134     object_initialize_child(obj, "lpc", &s->lpc, TYPE_ASPEED_LPC);
135 
136     object_initialize_child(obj, "sbc", &s->sbc, TYPE_ASPEED_SBC);
137 
138     for (i = 0; i < sc->wdts_num; i++) {
139         snprintf(typename, sizeof(typename), "aspeed.wdt-%s", socname);
140         object_initialize_child(obj, "wdt[*]", &s->wdt[i], typename);
141     }
142 
143     snprintf(typename, sizeof(typename), "aspeed.gpio-%s", socname);
144     object_initialize_child(obj, "gpio", &s->gpio, typename);
145 }
146 
147 static void aspeed_soc_ast1030_realize(DeviceState *dev_soc, Error **errp)
148 {
149     AspeedSoCState *s = ASPEED_SOC(dev_soc);
150     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
151     MemoryRegion *system_memory = get_system_memory();
152     DeviceState *armv7m;
153     Error *err = NULL;
154     int i;
155 
156     if (!clock_has_source(s->sysclk)) {
157         error_setg(errp, "sysclk clock must be wired up by the board code");
158         return;
159     }
160 
161     /* General I/O memory space to catch all unimplemented device */
162     create_unimplemented_device("aspeed.sbc",
163                                 sc->memmap[ASPEED_DEV_SBC],
164                                 0x40000);
165     create_unimplemented_device("aspeed.io",
166                                 sc->memmap[ASPEED_DEV_IOMEM],
167                                 ASPEED_SOC_IOMEM_SIZE);
168 
169     /* AST1030 CPU Core */
170     armv7m = DEVICE(&s->armv7m);
171     qdev_prop_set_uint32(armv7m, "num-irq", 256);
172     qdev_prop_set_string(armv7m, "cpu-type", sc->cpu_type);
173     qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk);
174     object_property_set_link(OBJECT(&s->armv7m), "memory",
175                              OBJECT(system_memory), &error_abort);
176     sysbus_realize(SYS_BUS_DEVICE(&s->armv7m), &error_abort);
177 
178     /* Internal SRAM */
179     memory_region_init_ram(&s->sram, NULL, "aspeed.sram", sc->sram_size, &err);
180     if (err != NULL) {
181         error_propagate(errp, err);
182         return;
183     }
184     memory_region_add_subregion(system_memory,
185                                 sc->memmap[ASPEED_DEV_SRAM],
186                                 &s->sram);
187 
188     /* SCU */
189     if (!sysbus_realize(SYS_BUS_DEVICE(&s->scu), errp)) {
190         return;
191     }
192     sysbus_mmio_map(SYS_BUS_DEVICE(&s->scu), 0, sc->memmap[ASPEED_DEV_SCU]);
193 
194     /* I2C */
195 
196     object_property_set_link(OBJECT(&s->i2c), "dram", OBJECT(&s->sram),
197                              &error_abort);
198     if (!sysbus_realize(SYS_BUS_DEVICE(&s->i2c), errp)) {
199         return;
200     }
201     sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c), 0, sc->memmap[ASPEED_DEV_I2C]);
202     for (i = 0; i < ASPEED_I2C_GET_CLASS(&s->i2c)->num_busses; i++) {
203         qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->armv7m),
204                                         sc->irqmap[ASPEED_DEV_I2C] + i);
205         /* The AST1030 I2C controller has one IRQ per bus. */
206         sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c.busses[i]), 0, irq);
207     }
208 
209     /* LPC */
210     if (!sysbus_realize(SYS_BUS_DEVICE(&s->lpc), errp)) {
211         return;
212     }
213     sysbus_mmio_map(SYS_BUS_DEVICE(&s->lpc), 0, sc->memmap[ASPEED_DEV_LPC]);
214 
215     /* Connect the LPC IRQ to the GIC. It is otherwise unused. */
216     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 0,
217                        aspeed_soc_get_irq(s, ASPEED_DEV_LPC));
218 
219     /*
220      * On the AST1030 LPC subdevice IRQs are connected straight to the GIC.
221      */
222     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_1,
223                        qdev_get_gpio_in(DEVICE(&s->armv7m),
224                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_1));
225 
226     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_2,
227                        qdev_get_gpio_in(DEVICE(&s->armv7m),
228                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_2));
229 
230     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_3,
231                        qdev_get_gpio_in(DEVICE(&s->armv7m),
232                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_3));
233 
234     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_4,
235                        qdev_get_gpio_in(DEVICE(&s->armv7m),
236                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_4));
237 
238     /* UART */
239     aspeed_soc_uart_init(s);
240 
241     /* Timer */
242     object_property_set_link(OBJECT(&s->timerctrl), "scu", OBJECT(&s->scu),
243                              &error_abort);
244     if (!sysbus_realize(SYS_BUS_DEVICE(&s->timerctrl), errp)) {
245         return;
246     }
247     sysbus_mmio_map(SYS_BUS_DEVICE(&s->timerctrl), 0,
248                     sc->memmap[ASPEED_DEV_TIMER1]);
249     for (i = 0; i < ASPEED_TIMER_NR_TIMERS; i++) {
250         qemu_irq irq = aspeed_soc_get_irq(s, ASPEED_DEV_TIMER1 + i);
251         sysbus_connect_irq(SYS_BUS_DEVICE(&s->timerctrl), i, irq);
252     }
253 
254     /* ADC */
255     if (!sysbus_realize(SYS_BUS_DEVICE(&s->adc), errp)) {
256         return;
257     }
258     sysbus_mmio_map(SYS_BUS_DEVICE(&s->adc), 0, sc->memmap[ASPEED_DEV_ADC]);
259     sysbus_connect_irq(SYS_BUS_DEVICE(&s->adc), 0,
260                        aspeed_soc_get_irq(s, ASPEED_DEV_ADC));
261 
262     /* FMC, The number of CS is set at the board level */
263     object_property_set_link(OBJECT(&s->fmc), "dram", OBJECT(&s->sram),
264             &error_abort);
265     if (!sysbus_realize(SYS_BUS_DEVICE(&s->fmc), errp)) {
266         return;
267     }
268     sysbus_mmio_map(SYS_BUS_DEVICE(&s->fmc), 0, sc->memmap[ASPEED_DEV_FMC]);
269     sysbus_mmio_map(SYS_BUS_DEVICE(&s->fmc), 1,
270                     ASPEED_SMC_GET_CLASS(&s->fmc)->flash_window_base);
271     sysbus_connect_irq(SYS_BUS_DEVICE(&s->fmc), 0,
272                        aspeed_soc_get_irq(s, ASPEED_DEV_FMC));
273 
274     /* SPI */
275     for (i = 0; i < sc->spis_num; i++) {
276         object_property_set_link(OBJECT(&s->spi[i]), "dram",
277                                  OBJECT(&s->sram), &error_abort);
278         if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
279             return;
280         }
281         sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 0,
282                         sc->memmap[ASPEED_DEV_SPI1 + i]);
283         sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 1,
284                         ASPEED_SMC_GET_CLASS(&s->spi[i])->flash_window_base);
285     }
286 
287     /* Secure Boot Controller */
288     if (!sysbus_realize(SYS_BUS_DEVICE(&s->sbc), errp)) {
289         return;
290     }
291     sysbus_mmio_map(SYS_BUS_DEVICE(&s->sbc), 0, sc->memmap[ASPEED_DEV_SBC]);
292 
293     /* Watch dog */
294     for (i = 0; i < sc->wdts_num; i++) {
295         AspeedWDTClass *awc = ASPEED_WDT_GET_CLASS(&s->wdt[i]);
296 
297         object_property_set_link(OBJECT(&s->wdt[i]), "scu", OBJECT(&s->scu),
298                                  &error_abort);
299         if (!sysbus_realize(SYS_BUS_DEVICE(&s->wdt[i]), errp)) {
300             return;
301         }
302         sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt[i]), 0,
303                         sc->memmap[ASPEED_DEV_WDT] + i * awc->offset);
304     }
305 
306     /* GPIO */
307     if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio), errp)) {
308         return;
309     }
310     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio), 0, sc->memmap[ASPEED_DEV_GPIO]);
311     sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), 0,
312                        aspeed_soc_get_irq(s, ASPEED_DEV_GPIO));
313 }
314 
315 static void aspeed_soc_ast1030_class_init(ObjectClass *klass, void *data)
316 {
317     DeviceClass *dc = DEVICE_CLASS(klass);
318     AspeedSoCClass *sc = ASPEED_SOC_CLASS(dc);
319 
320     dc->realize = aspeed_soc_ast1030_realize;
321 
322     sc->name = "ast1030-a1";
323     sc->cpu_type = ARM_CPU_TYPE_NAME("cortex-m4");
324     sc->silicon_rev = AST1030_A1_SILICON_REV;
325     sc->sram_size = 0xc0000;
326     sc->spis_num = 2;
327     sc->ehcis_num = 0;
328     sc->wdts_num = 4;
329     sc->macs_num = 1;
330     sc->uarts_num = 13;
331     sc->irqmap = aspeed_soc_ast1030_irqmap;
332     sc->memmap = aspeed_soc_ast1030_memmap;
333     sc->num_cpus = 1;
334     sc->get_irq = aspeed_soc_ast1030_get_irq;
335 }
336 
337 static const TypeInfo aspeed_soc_ast1030_type_info = {
338     .name          = "ast1030-a1",
339     .parent        = TYPE_ASPEED_SOC,
340     .instance_size = sizeof(AspeedSoCState),
341     .instance_init = aspeed_soc_ast1030_init,
342     .class_init    = aspeed_soc_ast1030_class_init,
343     .class_size    = sizeof(AspeedSoCClass),
344 };
345 
346 static void aspeed_soc_register_types(void)
347 {
348     type_register_static(&aspeed_soc_ast1030_type_info);
349 }
350 
351 type_init(aspeed_soc_register_types)
352