xref: /qemu/hw/riscv/opentitan.c (revision 732612856a8948a6ba1148322651743aa963b51c)
1fe0fe473SAlistair Francis /*
2fe0fe473SAlistair Francis  * QEMU RISC-V Board Compatible with OpenTitan FPGA platform
3fe0fe473SAlistair Francis  *
4fe0fe473SAlistair Francis  * Copyright (c) 2020 Western Digital
5fe0fe473SAlistair Francis  *
6fe0fe473SAlistair Francis  * Provides a board compatible with the OpenTitan FPGA platform:
7fe0fe473SAlistair Francis  *
8fe0fe473SAlistair Francis  * This program is free software; you can redistribute it and/or modify it
9fe0fe473SAlistair Francis  * under the terms and conditions of the GNU General Public License,
10fe0fe473SAlistair Francis  * version 2 or later, as published by the Free Software Foundation.
11fe0fe473SAlistair Francis  *
12fe0fe473SAlistair Francis  * This program is distributed in the hope it will be useful, but WITHOUT
13fe0fe473SAlistair Francis  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14fe0fe473SAlistair Francis  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15fe0fe473SAlistair Francis  * more details.
16fe0fe473SAlistair Francis  *
17fe0fe473SAlistair Francis  * You should have received a copy of the GNU General Public License along with
18fe0fe473SAlistair Francis  * this program.  If not, see <http://www.gnu.org/licenses/>.
19fe0fe473SAlistair Francis  */
20fe0fe473SAlistair Francis 
21fe0fe473SAlistair Francis #include "qemu/osdep.h"
22fe0fe473SAlistair Francis #include "hw/riscv/opentitan.h"
23fe0fe473SAlistair Francis #include "qapi/error.h"
24fe0fe473SAlistair Francis #include "hw/boards.h"
25fe0fe473SAlistair Francis #include "hw/misc/unimp.h"
26fe0fe473SAlistair Francis #include "hw/riscv/boot.h"
27fe0fe473SAlistair Francis #include "exec/address-spaces.h"
28888c9af2SAlistair Francis #include "qemu/units.h"
29b9fc5135SAlistair Francis #include "sysemu/sysemu.h"
30fe0fe473SAlistair Francis 
31*73261285SBin Meng static const MemMapEntry ibex_memmap[] = {
3230c717cbSEduardo Habkost     [IBEX_DEV_ROM] =            {  0x00008000, 16 * KiB },
3330c717cbSEduardo Habkost     [IBEX_DEV_RAM] =            {  0x10000000,  0x10000 },
3430c717cbSEduardo Habkost     [IBEX_DEV_FLASH] =          {  0x20000000,  0x80000 },
35d31e970aSAlistair Francis     [IBEX_DEV_UART] =           {  0x40000000,  0x1000  },
36d31e970aSAlistair Francis     [IBEX_DEV_GPIO] =           {  0x40040000,  0x1000  },
37d31e970aSAlistair Francis     [IBEX_DEV_SPI] =            {  0x40050000,  0x1000  },
38d31e970aSAlistair Francis     [IBEX_DEV_I2C] =            {  0x40080000,  0x1000  },
39d31e970aSAlistair Francis     [IBEX_DEV_PATTGEN] =        {  0x400e0000,  0x1000  },
40d31e970aSAlistair Francis     [IBEX_DEV_RV_TIMER] =       {  0x40100000,  0x1000  },
41d31e970aSAlistair Francis     [IBEX_DEV_SENSOR_CTRL] =    {  0x40110000,  0x1000  },
42d31e970aSAlistair Francis     [IBEX_DEV_OTP_CTRL] =       {  0x40130000,  0x4000  },
43d31e970aSAlistair Francis     [IBEX_DEV_PWRMGR] =         {  0x40400000,  0x1000  },
44d31e970aSAlistair Francis     [IBEX_DEV_RSTMGR] =         {  0x40410000,  0x1000  },
45d31e970aSAlistair Francis     [IBEX_DEV_CLKMGR] =         {  0x40420000,  0x1000  },
46d31e970aSAlistair Francis     [IBEX_DEV_PINMUX] =         {  0x40460000,  0x1000  },
47d31e970aSAlistair Francis     [IBEX_DEV_PADCTRL] =        {  0x40470000,  0x1000  },
48d31e970aSAlistair Francis     [IBEX_DEV_USBDEV] =         {  0x40500000,  0x1000  },
49d31e970aSAlistair Francis     [IBEX_DEV_FLASH_CTRL] =     {  0x41000000,  0x1000  },
50d31e970aSAlistair Francis     [IBEX_DEV_PLIC] =           {  0x41010000,  0x1000  },
51d31e970aSAlistair Francis     [IBEX_DEV_AES] =            {  0x41100000,  0x1000  },
52d31e970aSAlistair Francis     [IBEX_DEV_HMAC] =           {  0x41110000,  0x1000  },
53d31e970aSAlistair Francis     [IBEX_DEV_KMAC] =           {  0x41120000,  0x1000  },
54d31e970aSAlistair Francis     [IBEX_DEV_KEYMGR] =         {  0x41130000,  0x1000  },
55d31e970aSAlistair Francis     [IBEX_DEV_CSRNG] =          {  0x41150000,  0x1000  },
56d31e970aSAlistair Francis     [IBEX_DEV_ENTROPY] =        {  0x41160000,  0x1000  },
57d31e970aSAlistair Francis     [IBEX_DEV_EDNO] =           {  0x41170000,  0x1000  },
58d31e970aSAlistair Francis     [IBEX_DEV_EDN1] =           {  0x41180000,  0x1000  },
59d31e970aSAlistair Francis     [IBEX_DEV_ALERT_HANDLER] =  {  0x411b0000,  0x1000  },
60d31e970aSAlistair Francis     [IBEX_DEV_NMI_GEN] =        {  0x411c0000,  0x1000  },
61d31e970aSAlistair Francis     [IBEX_DEV_OTBN] =           {  0x411d0000,  0x10000 },
62fe0fe473SAlistair Francis };
63fe0fe473SAlistair Francis 
6489494462SBin Meng static void opentitan_board_init(MachineState *machine)
65fe0fe473SAlistair Francis {
66*73261285SBin Meng     const MemMapEntry *memmap = ibex_memmap;
67fe0fe473SAlistair Francis     OpenTitanState *s = g_new0(OpenTitanState, 1);
68fe0fe473SAlistair Francis     MemoryRegion *sys_mem = get_system_memory();
69fe0fe473SAlistair Francis     MemoryRegion *main_mem = g_new(MemoryRegion, 1);
70fe0fe473SAlistair Francis 
71fe0fe473SAlistair Francis     /* Initialize SoC */
72fe0fe473SAlistair Francis     object_initialize_child(OBJECT(machine), "soc", &s->soc,
739fc7fc4dSMarkus Armbruster                             TYPE_RISCV_IBEX_SOC);
74ce189ab2SMarkus Armbruster     qdev_realize(DEVICE(&s->soc), NULL, &error_abort);
75fe0fe473SAlistair Francis 
76fe0fe473SAlistair Francis     memory_region_init_ram(main_mem, NULL, "riscv.lowrisc.ibex.ram",
7730c717cbSEduardo Habkost         memmap[IBEX_DEV_RAM].size, &error_fatal);
78fe0fe473SAlistair Francis     memory_region_add_subregion(sys_mem,
7930c717cbSEduardo Habkost         memmap[IBEX_DEV_RAM].base, main_mem);
80fe0fe473SAlistair Francis 
81fe0fe473SAlistair Francis     if (machine->firmware) {
8230c717cbSEduardo Habkost         riscv_load_firmware(machine->firmware, memmap[IBEX_DEV_RAM].base, NULL);
83fe0fe473SAlistair Francis     }
84fe0fe473SAlistair Francis 
85fe0fe473SAlistair Francis     if (machine->kernel_filename) {
8638bc4e34SAlistair Francis         riscv_load_kernel(machine->kernel_filename,
8738bc4e34SAlistair Francis                           memmap[IBEX_DEV_RAM].base, NULL);
88fe0fe473SAlistair Francis     }
89fe0fe473SAlistair Francis }
90fe0fe473SAlistair Francis 
9189494462SBin Meng static void opentitan_machine_init(MachineClass *mc)
92fe0fe473SAlistair Francis {
93fe0fe473SAlistair Francis     mc->desc = "RISC-V Board compatible with OpenTitan";
9489494462SBin Meng     mc->init = opentitan_board_init;
95fe0fe473SAlistair Francis     mc->max_cpus = 1;
96fe0fe473SAlistair Francis     mc->default_cpu_type = TYPE_RISCV_CPU_IBEX;
97fe0fe473SAlistair Francis }
98fe0fe473SAlistair Francis 
9989494462SBin Meng DEFINE_MACHINE("opentitan", opentitan_machine_init)
100fe0fe473SAlistair Francis 
10189494462SBin Meng static void lowrisc_ibex_soc_init(Object *obj)
102fe0fe473SAlistair Francis {
103fe0fe473SAlistair Francis     LowRISCIbexSoCState *s = RISCV_IBEX_SOC(obj);
104fe0fe473SAlistair Francis 
105db873cc5SMarkus Armbruster     object_initialize_child(obj, "cpus", &s->cpus, TYPE_RISCV_HART_ARRAY);
106b9fc5135SAlistair Francis 
107b9fc5135SAlistair Francis     object_initialize_child(obj, "plic", &s->plic, TYPE_IBEX_PLIC);
108cc411260SAlistair Francis 
109cc411260SAlistair Francis     object_initialize_child(obj, "uart", &s->uart, TYPE_IBEX_UART);
110fe0fe473SAlistair Francis }
111fe0fe473SAlistair Francis 
11289494462SBin Meng static void lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp)
113fe0fe473SAlistair Francis {
114*73261285SBin Meng     const MemMapEntry *memmap = ibex_memmap;
115fe0fe473SAlistair Francis     MachineState *ms = MACHINE(qdev_get_machine());
116fe0fe473SAlistair Francis     LowRISCIbexSoCState *s = RISCV_IBEX_SOC(dev_soc);
117fe0fe473SAlistair Francis     MemoryRegion *sys_mem = get_system_memory();
118fe0fe473SAlistair Francis 
1195325cc34SMarkus Armbruster     object_property_set_str(OBJECT(&s->cpus), "cpu-type", ms->cpu_type,
120fe0fe473SAlistair Francis                             &error_abort);
1215325cc34SMarkus Armbruster     object_property_set_int(OBJECT(&s->cpus), "num-harts", ms->smp.cpus,
122fe0fe473SAlistair Francis                             &error_abort);
12373f6ed97SBin Meng     object_property_set_int(OBJECT(&s->cpus), "resetvec", 0x8090, &error_abort);
124db873cc5SMarkus Armbruster     sysbus_realize(SYS_BUS_DEVICE(&s->cpus), &error_abort);
125fe0fe473SAlistair Francis 
126fe0fe473SAlistair Francis     /* Boot ROM */
127fe0fe473SAlistair Francis     memory_region_init_rom(&s->rom, OBJECT(dev_soc), "riscv.lowrisc.ibex.rom",
12830c717cbSEduardo Habkost                            memmap[IBEX_DEV_ROM].size, &error_fatal);
129fe0fe473SAlistair Francis     memory_region_add_subregion(sys_mem,
13030c717cbSEduardo Habkost         memmap[IBEX_DEV_ROM].base, &s->rom);
131fe0fe473SAlistair Francis 
132fe0fe473SAlistair Francis     /* Flash memory */
133fe0fe473SAlistair Francis     memory_region_init_rom(&s->flash_mem, OBJECT(dev_soc), "riscv.lowrisc.ibex.flash",
13430c717cbSEduardo Habkost                            memmap[IBEX_DEV_FLASH].size, &error_fatal);
13530c717cbSEduardo Habkost     memory_region_add_subregion(sys_mem, memmap[IBEX_DEV_FLASH].base,
136fe0fe473SAlistair Francis                                 &s->flash_mem);
137fe0fe473SAlistair Francis 
138b9fc5135SAlistair Francis     /* PLIC */
139668f62ecSMarkus Armbruster     if (!sysbus_realize(SYS_BUS_DEVICE(&s->plic), errp)) {
140b9fc5135SAlistair Francis         return;
141b9fc5135SAlistair Francis     }
14230c717cbSEduardo Habkost     sysbus_mmio_map(SYS_BUS_DEVICE(&s->plic), 0, memmap[IBEX_DEV_PLIC].base);
143b9fc5135SAlistair Francis 
144cc411260SAlistair Francis     /* UART */
145cc411260SAlistair Francis     qdev_prop_set_chr(DEVICE(&(s->uart)), "chardev", serial_hd(0));
146668f62ecSMarkus Armbruster     if (!sysbus_realize(SYS_BUS_DEVICE(&s->uart), errp)) {
147cc411260SAlistair Francis         return;
148cc411260SAlistair Francis     }
14930c717cbSEduardo Habkost     sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart), 0, memmap[IBEX_DEV_UART].base);
150cc411260SAlistair Francis     sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart),
151cc411260SAlistair Francis                        0, qdev_get_gpio_in(DEVICE(&s->plic),
152cc411260SAlistair Francis                        IBEX_UART_TX_WATERMARK_IRQ));
153cc411260SAlistair Francis     sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart),
154cc411260SAlistair Francis                        1, qdev_get_gpio_in(DEVICE(&s->plic),
155cc411260SAlistair Francis                        IBEX_UART_RX_WATERMARK_IRQ));
156cc411260SAlistair Francis     sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart),
157cc411260SAlistair Francis                        2, qdev_get_gpio_in(DEVICE(&s->plic),
158cc411260SAlistair Francis                        IBEX_UART_TX_EMPTY_IRQ));
159cc411260SAlistair Francis     sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart),
160cc411260SAlistair Francis                        3, qdev_get_gpio_in(DEVICE(&s->plic),
161cc411260SAlistair Francis                        IBEX_UART_RX_OVERFLOW_IRQ));
162cc411260SAlistair Francis 
163fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.gpio",
16430c717cbSEduardo Habkost         memmap[IBEX_DEV_GPIO].base, memmap[IBEX_DEV_GPIO].size);
165fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.spi",
16630c717cbSEduardo Habkost         memmap[IBEX_DEV_SPI].base, memmap[IBEX_DEV_SPI].size);
167d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.i2c",
168d31e970aSAlistair Francis         memmap[IBEX_DEV_I2C].base, memmap[IBEX_DEV_I2C].size);
169d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.pattgen",
170d31e970aSAlistair Francis         memmap[IBEX_DEV_PATTGEN].base, memmap[IBEX_DEV_PATTGEN].size);
171fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.rv_timer",
17230c717cbSEduardo Habkost         memmap[IBEX_DEV_RV_TIMER].base, memmap[IBEX_DEV_RV_TIMER].size);
173d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.sensor_ctrl",
174d31e970aSAlistair Francis         memmap[IBEX_DEV_SENSOR_CTRL].base, memmap[IBEX_DEV_SENSOR_CTRL].size);
175d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.otp_ctrl",
176d31e970aSAlistair Francis         memmap[IBEX_DEV_OTP_CTRL].base, memmap[IBEX_DEV_OTP_CTRL].size);
177fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.pwrmgr",
17830c717cbSEduardo Habkost         memmap[IBEX_DEV_PWRMGR].base, memmap[IBEX_DEV_PWRMGR].size);
179fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.rstmgr",
18030c717cbSEduardo Habkost         memmap[IBEX_DEV_RSTMGR].base, memmap[IBEX_DEV_RSTMGR].size);
181fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.clkmgr",
18230c717cbSEduardo Habkost         memmap[IBEX_DEV_CLKMGR].base, memmap[IBEX_DEV_CLKMGR].size);
183d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.pinmux",
184d31e970aSAlistair Francis         memmap[IBEX_DEV_PINMUX].base, memmap[IBEX_DEV_PINMUX].size);
185d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.padctrl",
186d31e970aSAlistair Francis         memmap[IBEX_DEV_PADCTRL].base, memmap[IBEX_DEV_PADCTRL].size);
187d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.usbdev",
188d31e970aSAlistair Francis         memmap[IBEX_DEV_USBDEV].base, memmap[IBEX_DEV_USBDEV].size);
189d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.flash_ctrl",
190d31e970aSAlistair Francis         memmap[IBEX_DEV_FLASH_CTRL].base, memmap[IBEX_DEV_FLASH_CTRL].size);
191fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.aes",
19230c717cbSEduardo Habkost         memmap[IBEX_DEV_AES].base, memmap[IBEX_DEV_AES].size);
193fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.hmac",
19430c717cbSEduardo Habkost         memmap[IBEX_DEV_HMAC].base, memmap[IBEX_DEV_HMAC].size);
195d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.kmac",
196d31e970aSAlistair Francis         memmap[IBEX_DEV_KMAC].base, memmap[IBEX_DEV_KMAC].size);
197d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.keymgr",
198d31e970aSAlistair Francis         memmap[IBEX_DEV_KEYMGR].base, memmap[IBEX_DEV_KEYMGR].size);
199d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.csrng",
200d31e970aSAlistair Francis         memmap[IBEX_DEV_CSRNG].base, memmap[IBEX_DEV_CSRNG].size);
201d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.entropy",
202d31e970aSAlistair Francis         memmap[IBEX_DEV_ENTROPY].base, memmap[IBEX_DEV_ENTROPY].size);
203d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.edn0",
204d31e970aSAlistair Francis         memmap[IBEX_DEV_EDNO].base, memmap[IBEX_DEV_EDNO].size);
205d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.edn1",
206d31e970aSAlistair Francis         memmap[IBEX_DEV_EDN1].base, memmap[IBEX_DEV_EDN1].size);
207fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.alert_handler",
20830c717cbSEduardo Habkost         memmap[IBEX_DEV_ALERT_HANDLER].base, memmap[IBEX_DEV_ALERT_HANDLER].size);
209fe0fe473SAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.nmi_gen",
21030c717cbSEduardo Habkost         memmap[IBEX_DEV_NMI_GEN].base, memmap[IBEX_DEV_NMI_GEN].size);
211d31e970aSAlistair Francis     create_unimplemented_device("riscv.lowrisc.ibex.otbn",
212d31e970aSAlistair Francis         memmap[IBEX_DEV_OTBN].base, memmap[IBEX_DEV_OTBN].size);
213fe0fe473SAlistair Francis }
214fe0fe473SAlistair Francis 
21589494462SBin Meng static void lowrisc_ibex_soc_class_init(ObjectClass *oc, void *data)
216fe0fe473SAlistair Francis {
217fe0fe473SAlistair Francis     DeviceClass *dc = DEVICE_CLASS(oc);
218fe0fe473SAlistair Francis 
21989494462SBin Meng     dc->realize = lowrisc_ibex_soc_realize;
220fe0fe473SAlistair Francis     /* Reason: Uses serial_hds in realize function, thus can't be used twice */
221fe0fe473SAlistair Francis     dc->user_creatable = false;
222fe0fe473SAlistair Francis }
223fe0fe473SAlistair Francis 
22489494462SBin Meng static const TypeInfo lowrisc_ibex_soc_type_info = {
225fe0fe473SAlistair Francis     .name = TYPE_RISCV_IBEX_SOC,
226fe0fe473SAlistair Francis     .parent = TYPE_DEVICE,
227fe0fe473SAlistair Francis     .instance_size = sizeof(LowRISCIbexSoCState),
22889494462SBin Meng     .instance_init = lowrisc_ibex_soc_init,
22989494462SBin Meng     .class_init = lowrisc_ibex_soc_class_init,
230fe0fe473SAlistair Francis };
231fe0fe473SAlistair Francis 
23289494462SBin Meng static void lowrisc_ibex_soc_register_types(void)
233fe0fe473SAlistair Francis {
23489494462SBin Meng     type_register_static(&lowrisc_ibex_soc_type_info);
235fe0fe473SAlistair Francis }
236fe0fe473SAlistair Francis 
23789494462SBin Meng type_init(lowrisc_ibex_soc_register_types)
238