Merge tag 'pull-loongarch-20241016' of https://gitlab.com/gaosong/qemu into staging
[qemu/armbru.git] / hw / riscv / sifive_e.c
blob5a1959f2a9e60ab553d20e85981886bfd243dd1a
1 /*
2 * QEMU RISC-V Board Compatible with SiFive Freedom E SDK
4 * Copyright (c) 2017 SiFive, Inc.
6 * Provides a board compatible with the SiFive Freedom E SDK:
8 * 0) UART
9 * 1) CLINT (Core Level Interruptor)
10 * 2) PLIC (Platform Level Interrupt Controller)
11 * 3) PRCI (Power, Reset, Clock, Interrupt)
12 * 4) Registers emulated as RAM: AON, GPIO, QSPI, PWM
13 * 5) Flash memory emulated as RAM
15 * The Mask ROM reset vector jumps to the flash payload at 0x2040_0000.
16 * The OTP ROM and Flash boot code will be emulated in a future version.
18 * This program is free software; you can redistribute it and/or modify it
19 * under the terms and conditions of the GNU General Public License,
20 * version 2 or later, as published by the Free Software Foundation.
22 * This program is distributed in the hope it will be useful, but WITHOUT
23 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
24 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
25 * more details.
27 * You should have received a copy of the GNU General Public License along with
28 * this program. If not, see <http://www.gnu.org/licenses/>.
31 #include "qemu/osdep.h"
32 #include "qemu/cutils.h"
33 #include "qemu/error-report.h"
34 #include "qapi/error.h"
35 #include "hw/boards.h"
36 #include "hw/loader.h"
37 #include "hw/sysbus.h"
38 #include "hw/misc/unimp.h"
39 #include "target/riscv/cpu.h"
40 #include "hw/riscv/riscv_hart.h"
41 #include "hw/riscv/sifive_e.h"
42 #include "hw/riscv/boot.h"
43 #include "hw/char/sifive_uart.h"
44 #include "hw/intc/riscv_aclint.h"
45 #include "hw/intc/sifive_plic.h"
46 #include "hw/misc/sifive_e_prci.h"
47 #include "hw/misc/sifive_e_aon.h"
48 #include "chardev/char.h"
49 #include "sysemu/sysemu.h"
51 static const MemMapEntry sifive_e_memmap[] = {
52 [SIFIVE_E_DEV_DEBUG] = { 0x0, 0x1000 },
53 [SIFIVE_E_DEV_MROM] = { 0x1000, 0x2000 },
54 [SIFIVE_E_DEV_OTP] = { 0x20000, 0x2000 },
55 [SIFIVE_E_DEV_CLINT] = { 0x2000000, 0x10000 },
56 [SIFIVE_E_DEV_PLIC] = { 0xc000000, 0x4000000 },
57 [SIFIVE_E_DEV_AON] = { 0x10000000, 0x8000 },
58 [SIFIVE_E_DEV_PRCI] = { 0x10008000, 0x8000 },
59 [SIFIVE_E_DEV_OTP_CTRL] = { 0x10010000, 0x1000 },
60 [SIFIVE_E_DEV_GPIO0] = { 0x10012000, 0x1000 },
61 [SIFIVE_E_DEV_UART0] = { 0x10013000, 0x1000 },
62 [SIFIVE_E_DEV_QSPI0] = { 0x10014000, 0x1000 },
63 [SIFIVE_E_DEV_PWM0] = { 0x10015000, 0x1000 },
64 [SIFIVE_E_DEV_UART1] = { 0x10023000, 0x1000 },
65 [SIFIVE_E_DEV_QSPI1] = { 0x10024000, 0x1000 },
66 [SIFIVE_E_DEV_PWM1] = { 0x10025000, 0x1000 },
67 [SIFIVE_E_DEV_QSPI2] = { 0x10034000, 0x1000 },
68 [SIFIVE_E_DEV_PWM2] = { 0x10035000, 0x1000 },
69 [SIFIVE_E_DEV_XIP] = { 0x20000000, 0x20000000 },
70 [SIFIVE_E_DEV_DTIM] = { 0x80000000, 0x4000 }
73 static void sifive_e_machine_init(MachineState *machine)
75 MachineClass *mc = MACHINE_GET_CLASS(machine);
76 const MemMapEntry *memmap = sifive_e_memmap;
78 SiFiveEState *s = RISCV_E_MACHINE(machine);
79 MemoryRegion *sys_mem = get_system_memory();
80 int i;
82 if (machine->ram_size != mc->default_ram_size) {
83 char *sz = size_to_str(mc->default_ram_size);
84 error_report("Invalid RAM size, should be %s", sz);
85 g_free(sz);
86 exit(EXIT_FAILURE);
89 /* Initialize SoC */
90 object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_RISCV_E_SOC);
91 qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);
93 /* Data Tightly Integrated Memory */
94 memory_region_add_subregion(sys_mem,
95 memmap[SIFIVE_E_DEV_DTIM].base, machine->ram);
97 /* Mask ROM reset vector */
98 uint32_t reset_vec[4];
100 if (s->revb) {
101 reset_vec[1] = 0x200102b7; /* 0x1004: lui t0,0x20010 */
102 } else {
103 reset_vec[1] = 0x204002b7; /* 0x1004: lui t0,0x20400 */
105 reset_vec[2] = 0x00028067; /* 0x1008: jr t0 */
107 reset_vec[0] = reset_vec[3] = 0;
109 /* copy in the reset vector in little_endian byte order */
110 for (i = 0; i < sizeof(reset_vec) >> 2; i++) {
111 reset_vec[i] = cpu_to_le32(reset_vec[i]);
113 rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec),
114 memmap[SIFIVE_E_DEV_MROM].base, &address_space_memory);
116 if (machine->kernel_filename) {
117 riscv_load_kernel(machine, &s->soc.cpus,
118 memmap[SIFIVE_E_DEV_DTIM].base,
119 false, NULL);
123 static bool sifive_e_machine_get_revb(Object *obj, Error **errp)
125 SiFiveEState *s = RISCV_E_MACHINE(obj);
127 return s->revb;
130 static void sifive_e_machine_set_revb(Object *obj, bool value, Error **errp)
132 SiFiveEState *s = RISCV_E_MACHINE(obj);
134 s->revb = value;
137 static void sifive_e_machine_instance_init(Object *obj)
139 SiFiveEState *s = RISCV_E_MACHINE(obj);
141 s->revb = false;
144 static void sifive_e_machine_class_init(ObjectClass *oc, void *data)
146 MachineClass *mc = MACHINE_CLASS(oc);
148 mc->desc = "RISC-V Board compatible with SiFive E SDK";
149 mc->init = sifive_e_machine_init;
150 mc->max_cpus = 1;
151 mc->default_cpu_type = SIFIVE_E_CPU;
152 mc->default_ram_id = "riscv.sifive.e.ram";
153 mc->default_ram_size = sifive_e_memmap[SIFIVE_E_DEV_DTIM].size;
155 object_class_property_add_bool(oc, "revb", sifive_e_machine_get_revb,
156 sifive_e_machine_set_revb);
157 object_class_property_set_description(oc, "revb",
158 "Set on to tell QEMU that it should model "
159 "the revB HiFive1 board");
162 static const TypeInfo sifive_e_machine_typeinfo = {
163 .name = MACHINE_TYPE_NAME("sifive_e"),
164 .parent = TYPE_MACHINE,
165 .class_init = sifive_e_machine_class_init,
166 .instance_init = sifive_e_machine_instance_init,
167 .instance_size = sizeof(SiFiveEState),
170 static void sifive_e_machine_init_register_types(void)
172 type_register_static(&sifive_e_machine_typeinfo);
175 type_init(sifive_e_machine_init_register_types)
177 static void sifive_e_soc_init(Object *obj)
179 MachineState *ms = MACHINE(qdev_get_machine());
180 SiFiveESoCState *s = RISCV_E_SOC(obj);
182 object_initialize_child(obj, "cpus", &s->cpus, TYPE_RISCV_HART_ARRAY);
183 object_property_set_int(OBJECT(&s->cpus), "num-harts", ms->smp.cpus,
184 &error_abort);
185 object_property_set_int(OBJECT(&s->cpus), "resetvec", 0x1004, &error_abort);
186 object_initialize_child(obj, "riscv.sifive.e.gpio0", &s->gpio,
187 TYPE_SIFIVE_GPIO);
188 object_initialize_child(obj, "riscv.sifive.e.aon", &s->aon,
189 TYPE_SIFIVE_E_AON);
192 static void sifive_e_soc_realize(DeviceState *dev, Error **errp)
194 MachineState *ms = MACHINE(qdev_get_machine());
195 const MemMapEntry *memmap = sifive_e_memmap;
196 SiFiveESoCState *s = RISCV_E_SOC(dev);
197 MemoryRegion *sys_mem = get_system_memory();
199 object_property_set_str(OBJECT(&s->cpus), "cpu-type", ms->cpu_type,
200 &error_abort);
201 sysbus_realize(SYS_BUS_DEVICE(&s->cpus), &error_fatal);
203 /* Mask ROM */
204 memory_region_init_rom(&s->mask_rom, OBJECT(dev), "riscv.sifive.e.mrom",
205 memmap[SIFIVE_E_DEV_MROM].size, &error_fatal);
206 memory_region_add_subregion(sys_mem,
207 memmap[SIFIVE_E_DEV_MROM].base, &s->mask_rom);
209 /* MMIO */
210 s->plic = sifive_plic_create(memmap[SIFIVE_E_DEV_PLIC].base,
211 (char *)SIFIVE_E_PLIC_HART_CONFIG, ms->smp.cpus, 0,
212 SIFIVE_E_PLIC_NUM_SOURCES,
213 SIFIVE_E_PLIC_NUM_PRIORITIES,
214 SIFIVE_E_PLIC_PRIORITY_BASE,
215 SIFIVE_E_PLIC_PENDING_BASE,
216 SIFIVE_E_PLIC_ENABLE_BASE,
217 SIFIVE_E_PLIC_ENABLE_STRIDE,
218 SIFIVE_E_PLIC_CONTEXT_BASE,
219 SIFIVE_E_PLIC_CONTEXT_STRIDE,
220 memmap[SIFIVE_E_DEV_PLIC].size);
221 riscv_aclint_swi_create(memmap[SIFIVE_E_DEV_CLINT].base,
222 0, ms->smp.cpus, false);
223 riscv_aclint_mtimer_create(memmap[SIFIVE_E_DEV_CLINT].base +
224 RISCV_ACLINT_SWI_SIZE,
225 RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 0, ms->smp.cpus,
226 RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME,
227 SIFIVE_E_LFCLK_DEFAULT_FREQ, false);
228 sifive_e_prci_create(memmap[SIFIVE_E_DEV_PRCI].base);
230 /* AON */
232 if (!sysbus_realize(SYS_BUS_DEVICE(&s->aon), errp)) {
233 return;
236 /* Map AON registers */
237 sysbus_mmio_map(SYS_BUS_DEVICE(&s->aon), 0, memmap[SIFIVE_E_DEV_AON].base);
239 /* GPIO */
241 if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio), errp)) {
242 return;
245 /* Map GPIO registers */
246 sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio), 0, memmap[SIFIVE_E_DEV_GPIO0].base);
248 /* Pass all GPIOs to the SOC layer so they are available to the board */
249 qdev_pass_gpios(DEVICE(&s->gpio), dev, NULL);
251 /* Connect GPIO interrupts to the PLIC */
252 for (int i = 0; i < 32; i++) {
253 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), i,
254 qdev_get_gpio_in(DEVICE(s->plic),
255 SIFIVE_E_GPIO0_IRQ0 + i));
257 sysbus_connect_irq(SYS_BUS_DEVICE(&s->aon), 0,
258 qdev_get_gpio_in(DEVICE(s->plic),
259 SIFIVE_E_AON_WDT_IRQ));
261 sifive_uart_create(sys_mem, memmap[SIFIVE_E_DEV_UART0].base,
262 serial_hd(0), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_E_UART0_IRQ));
263 create_unimplemented_device("riscv.sifive.e.qspi0",
264 memmap[SIFIVE_E_DEV_QSPI0].base, memmap[SIFIVE_E_DEV_QSPI0].size);
265 create_unimplemented_device("riscv.sifive.e.pwm0",
266 memmap[SIFIVE_E_DEV_PWM0].base, memmap[SIFIVE_E_DEV_PWM0].size);
267 sifive_uart_create(sys_mem, memmap[SIFIVE_E_DEV_UART1].base,
268 serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_E_UART1_IRQ));
269 create_unimplemented_device("riscv.sifive.e.qspi1",
270 memmap[SIFIVE_E_DEV_QSPI1].base, memmap[SIFIVE_E_DEV_QSPI1].size);
271 create_unimplemented_device("riscv.sifive.e.pwm1",
272 memmap[SIFIVE_E_DEV_PWM1].base, memmap[SIFIVE_E_DEV_PWM1].size);
273 create_unimplemented_device("riscv.sifive.e.qspi2",
274 memmap[SIFIVE_E_DEV_QSPI2].base, memmap[SIFIVE_E_DEV_QSPI2].size);
275 create_unimplemented_device("riscv.sifive.e.pwm2",
276 memmap[SIFIVE_E_DEV_PWM2].base, memmap[SIFIVE_E_DEV_PWM2].size);
278 /* Flash memory */
279 memory_region_init_rom(&s->xip_mem, OBJECT(dev), "riscv.sifive.e.xip",
280 memmap[SIFIVE_E_DEV_XIP].size, &error_fatal);
281 memory_region_add_subregion(sys_mem, memmap[SIFIVE_E_DEV_XIP].base,
282 &s->xip_mem);
285 static void sifive_e_soc_class_init(ObjectClass *oc, void *data)
287 DeviceClass *dc = DEVICE_CLASS(oc);
289 dc->realize = sifive_e_soc_realize;
290 /* Reason: Uses serial_hds in realize function, thus can't be used twice */
291 dc->user_creatable = false;
294 static const TypeInfo sifive_e_soc_type_info = {
295 .name = TYPE_RISCV_E_SOC,
296 .parent = TYPE_DEVICE,
297 .instance_size = sizeof(SiFiveESoCState),
298 .instance_init = sifive_e_soc_init,
299 .class_init = sifive_e_soc_class_init,
302 static void sifive_e_soc_register_types(void)
304 type_register_static(&sifive_e_soc_type_info);
307 type_init(sifive_e_soc_register_types)