xref: /openbmc/qemu/hw/arm/aspeed_ast10x0.c (revision 06680b15)
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.timer-%s", socname);
118     object_initialize_child(obj, "timerctrl", &s->timerctrl, typename);
119 
120     snprintf(typename, sizeof(typename), "aspeed.adc-%s", socname);
121     object_initialize_child(obj, "adc", &s->adc, typename);
122 
123     snprintf(typename, sizeof(typename), "aspeed.fmc-%s", socname);
124     object_initialize_child(obj, "fmc", &s->fmc, typename);
125 
126     for (i = 0; i < sc->spis_num; i++) {
127         snprintf(typename, sizeof(typename), "aspeed.spi%d-%s", i + 1, socname);
128         object_initialize_child(obj, "spi[*]", &s->spi[i], typename);
129     }
130 
131     object_initialize_child(obj, "lpc", &s->lpc, TYPE_ASPEED_LPC);
132 
133     object_initialize_child(obj, "sbc", &s->sbc, TYPE_ASPEED_SBC);
134 
135     for (i = 0; i < sc->wdts_num; i++) {
136         snprintf(typename, sizeof(typename), "aspeed.wdt-%s", socname);
137         object_initialize_child(obj, "wdt[*]", &s->wdt[i], typename);
138     }
139 
140     snprintf(typename, sizeof(typename), "aspeed.gpio-%s", socname);
141     object_initialize_child(obj, "gpio", &s->gpio, typename);
142 }
143 
144 static void aspeed_soc_ast1030_realize(DeviceState *dev_soc, Error **errp)
145 {
146     AspeedSoCState *s = ASPEED_SOC(dev_soc);
147     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
148     MemoryRegion *system_memory = get_system_memory();
149     DeviceState *armv7m;
150     Error *err = NULL;
151     int i;
152 
153     if (!clock_has_source(s->sysclk)) {
154         error_setg(errp, "sysclk clock must be wired up by the board code");
155         return;
156     }
157 
158     /* General I/O memory space to catch all unimplemented device */
159     create_unimplemented_device("aspeed.sbc",
160                                 sc->memmap[ASPEED_DEV_SBC],
161                                 0x40000);
162     create_unimplemented_device("aspeed.io",
163                                 sc->memmap[ASPEED_DEV_IOMEM],
164                                 ASPEED_SOC_IOMEM_SIZE);
165 
166     /* AST1030 CPU Core */
167     armv7m = DEVICE(&s->armv7m);
168     qdev_prop_set_uint32(armv7m, "num-irq", 256);
169     qdev_prop_set_string(armv7m, "cpu-type", sc->cpu_type);
170     qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk);
171     object_property_set_link(OBJECT(&s->armv7m), "memory",
172                              OBJECT(system_memory), &error_abort);
173     sysbus_realize(SYS_BUS_DEVICE(&s->armv7m), &error_abort);
174 
175     /* Internal SRAM */
176     memory_region_init_ram(&s->sram, NULL, "aspeed.sram", sc->sram_size, &err);
177     if (err != NULL) {
178         error_propagate(errp, err);
179         return;
180     }
181     memory_region_add_subregion(system_memory,
182                                 sc->memmap[ASPEED_DEV_SRAM],
183                                 &s->sram);
184 
185     /* SCU */
186     if (!sysbus_realize(SYS_BUS_DEVICE(&s->scu), errp)) {
187         return;
188     }
189     sysbus_mmio_map(SYS_BUS_DEVICE(&s->scu), 0, sc->memmap[ASPEED_DEV_SCU]);
190 
191     /* LPC */
192     if (!sysbus_realize(SYS_BUS_DEVICE(&s->lpc), errp)) {
193         return;
194     }
195     sysbus_mmio_map(SYS_BUS_DEVICE(&s->lpc), 0, sc->memmap[ASPEED_DEV_LPC]);
196 
197     /* Connect the LPC IRQ to the GIC. It is otherwise unused. */
198     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 0,
199                        aspeed_soc_get_irq(s, ASPEED_DEV_LPC));
200 
201     /*
202      * On the AST1030 LPC subdevice IRQs are connected straight to the GIC.
203      */
204     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_1,
205                        qdev_get_gpio_in(DEVICE(&s->armv7m),
206                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_1));
207 
208     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_2,
209                        qdev_get_gpio_in(DEVICE(&s->armv7m),
210                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_2));
211 
212     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_3,
213                        qdev_get_gpio_in(DEVICE(&s->armv7m),
214                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_3));
215 
216     sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_4,
217                        qdev_get_gpio_in(DEVICE(&s->armv7m),
218                                 sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_4));
219 
220     /* UART */
221     aspeed_soc_uart_init(s);
222 
223     /* Timer */
224     object_property_set_link(OBJECT(&s->timerctrl), "scu", OBJECT(&s->scu),
225                              &error_abort);
226     if (!sysbus_realize(SYS_BUS_DEVICE(&s->timerctrl), errp)) {
227         return;
228     }
229     sysbus_mmio_map(SYS_BUS_DEVICE(&s->timerctrl), 0,
230                     sc->memmap[ASPEED_DEV_TIMER1]);
231     for (i = 0; i < ASPEED_TIMER_NR_TIMERS; i++) {
232         qemu_irq irq = aspeed_soc_get_irq(s, ASPEED_DEV_TIMER1 + i);
233         sysbus_connect_irq(SYS_BUS_DEVICE(&s->timerctrl), i, irq);
234     }
235 
236     /* ADC */
237     if (!sysbus_realize(SYS_BUS_DEVICE(&s->adc), errp)) {
238         return;
239     }
240     sysbus_mmio_map(SYS_BUS_DEVICE(&s->adc), 0, sc->memmap[ASPEED_DEV_ADC]);
241     sysbus_connect_irq(SYS_BUS_DEVICE(&s->adc), 0,
242                        aspeed_soc_get_irq(s, ASPEED_DEV_ADC));
243 
244     /* FMC, The number of CS is set at the board level */
245     object_property_set_link(OBJECT(&s->fmc), "dram", OBJECT(&s->sram),
246             &error_abort);
247     if (!sysbus_realize(SYS_BUS_DEVICE(&s->fmc), errp)) {
248         return;
249     }
250     sysbus_mmio_map(SYS_BUS_DEVICE(&s->fmc), 0, sc->memmap[ASPEED_DEV_FMC]);
251     sysbus_mmio_map(SYS_BUS_DEVICE(&s->fmc), 1,
252                     ASPEED_SMC_GET_CLASS(&s->fmc)->flash_window_base);
253     sysbus_connect_irq(SYS_BUS_DEVICE(&s->fmc), 0,
254                        aspeed_soc_get_irq(s, ASPEED_DEV_FMC));
255 
256     /* SPI */
257     for (i = 0; i < sc->spis_num; i++) {
258         object_property_set_link(OBJECT(&s->spi[i]), "dram",
259                                  OBJECT(&s->sram), &error_abort);
260         if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
261             return;
262         }
263         sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 0,
264                         sc->memmap[ASPEED_DEV_SPI1 + i]);
265         sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 1,
266                         ASPEED_SMC_GET_CLASS(&s->spi[i])->flash_window_base);
267     }
268 
269     /* Secure Boot Controller */
270     if (!sysbus_realize(SYS_BUS_DEVICE(&s->sbc), errp)) {
271         return;
272     }
273     sysbus_mmio_map(SYS_BUS_DEVICE(&s->sbc), 0, sc->memmap[ASPEED_DEV_SBC]);
274 
275     /* Watch dog */
276     for (i = 0; i < sc->wdts_num; i++) {
277         AspeedWDTClass *awc = ASPEED_WDT_GET_CLASS(&s->wdt[i]);
278 
279         object_property_set_link(OBJECT(&s->wdt[i]), "scu", OBJECT(&s->scu),
280                                  &error_abort);
281         if (!sysbus_realize(SYS_BUS_DEVICE(&s->wdt[i]), errp)) {
282             return;
283         }
284         sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt[i]), 0,
285                         sc->memmap[ASPEED_DEV_WDT] + i * awc->offset);
286     }
287 
288     /* GPIO */
289     if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio), errp)) {
290         return;
291     }
292     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio), 0, sc->memmap[ASPEED_DEV_GPIO]);
293     sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), 0,
294                        aspeed_soc_get_irq(s, ASPEED_DEV_GPIO));
295 }
296 
297 static void aspeed_soc_ast1030_class_init(ObjectClass *klass, void *data)
298 {
299     DeviceClass *dc = DEVICE_CLASS(klass);
300     AspeedSoCClass *sc = ASPEED_SOC_CLASS(dc);
301 
302     dc->realize = aspeed_soc_ast1030_realize;
303 
304     sc->name = "ast1030-a1";
305     sc->cpu_type = ARM_CPU_TYPE_NAME("cortex-m4");
306     sc->silicon_rev = AST1030_A1_SILICON_REV;
307     sc->sram_size = 0xc0000;
308     sc->spis_num = 2;
309     sc->ehcis_num = 0;
310     sc->wdts_num = 4;
311     sc->macs_num = 1;
312     sc->uarts_num = 13;
313     sc->irqmap = aspeed_soc_ast1030_irqmap;
314     sc->memmap = aspeed_soc_ast1030_memmap;
315     sc->num_cpus = 1;
316     sc->get_irq = aspeed_soc_ast1030_get_irq;
317 }
318 
319 static const TypeInfo aspeed_soc_ast1030_type_info = {
320     .name          = "ast1030-a1",
321     .parent        = TYPE_ASPEED_SOC,
322     .instance_size = sizeof(AspeedSoCState),
323     .instance_init = aspeed_soc_ast1030_init,
324     .class_init    = aspeed_soc_ast1030_class_init,
325     .class_size    = sizeof(AspeedSoCClass),
326 };
327 
328 static void aspeed_soc_register_types(void)
329 {
330     type_register_static(&aspeed_soc_ast1030_type_info);
331 }
332 
333 type_init(aspeed_soc_register_types)
334