#include "qemu/log.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
-#include "hw/hw.h"
#include "hw/boards.h"
#include "hw/loader.h"
#include "hw/sysbus.h"
#include "hw/char/serial.h"
+#include "hw/misc/unimp.h"
#include "target/riscv/cpu.h"
#include "hw/riscv/riscv_hart.h"
#include "hw/riscv/sifive_plic.h"
#include "hw/riscv/sifive_clint.h"
-#include "hw/riscv/sifive_prci.h"
#include "hw/riscv/sifive_uart.h"
#include "hw/riscv/sifive_e.h"
+#include "hw/riscv/sifive_e_prci.h"
+#include "hw/riscv/boot.h"
#include "chardev/char.h"
#include "sysemu/arch_init.h"
+#include "sysemu/sysemu.h"
#include "exec/address-spaces.h"
-#include "elf.h"
static const struct MemmapEntry {
hwaddr base;
[SIFIVE_E_DTIM] = { 0x80000000, 0x4000 }
};
-static uint64_t load_kernel(const char *kernel_filename)
-{
- uint64_t kernel_entry, kernel_high;
-
- if (load_elf(kernel_filename, NULL, NULL,
- &kernel_entry, NULL, &kernel_high,
- 0, EM_RISCV, 1, 0) < 0) {
- error_report("qemu: could not load kernel '%s'", kernel_filename);
- exit(1);
- }
- return kernel_entry;
-}
-
-static void sifive_mmio_emulate(MemoryRegion *parent, const char *name,
- uintptr_t offset, uintptr_t length)
-{
- MemoryRegion *mock_mmio = g_new(MemoryRegion, 1);
- memory_region_init_ram(mock_mmio, NULL, name, length, &error_fatal);
- memory_region_add_subregion(parent, offset, mock_mmio);
-}
-
static void riscv_sifive_e_init(MachineState *machine)
{
const struct MemmapEntry *memmap = sifive_e_memmap;
SiFiveEState *s = g_new0(SiFiveEState, 1);
MemoryRegion *sys_mem = get_system_memory();
MemoryRegion *main_mem = g_new(MemoryRegion, 1);
- MemoryRegion *mask_rom = g_new(MemoryRegion, 1);
- MemoryRegion *xip_mem = g_new(MemoryRegion, 1);
int i;
- /* Initialize SOC */
- object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY);
- object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
- &error_abort);
- object_property_set_str(OBJECT(&s->soc), SIFIVE_E_CPU, "cpu-type",
- &error_abort);
- object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts",
- &error_abort);
+ /* Initialize SoC */
+ object_initialize_child(OBJECT(machine), "soc", &s->soc,
+ sizeof(s->soc), TYPE_RISCV_E_SOC,
+ &error_abort, NULL);
object_property_set_bool(OBJECT(&s->soc), true, "realized",
&error_abort);
memory_region_add_subregion(sys_mem,
memmap[SIFIVE_E_DTIM].base, main_mem);
+ /* Mask ROM reset vector */
+ uint32_t reset_vec[2] = {
+ 0x204002b7, /* 0x1000: lui t0,0x20400 */
+ 0x00028067, /* 0x1004: jr t0 */
+ };
+
+ /* copy in the reset vector in little_endian byte order */
+ for (i = 0; i < sizeof(reset_vec) >> 2; i++) {
+ reset_vec[i] = cpu_to_le32(reset_vec[i]);
+ }
+ rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec),
+ memmap[SIFIVE_E_MROM].base, &address_space_memory);
+
+ if (machine->kernel_filename) {
+ riscv_load_kernel(machine->kernel_filename);
+ }
+}
+
+static void riscv_sifive_e_soc_init(Object *obj)
+{
+ MachineState *ms = MACHINE(qdev_get_machine());
+ SiFiveESoCState *s = RISCV_E_SOC(obj);
+
+ object_initialize_child(obj, "cpus", &s->cpus,
+ sizeof(s->cpus), TYPE_RISCV_HART_ARRAY,
+ &error_abort, NULL);
+ object_property_set_str(OBJECT(&s->cpus), SIFIVE_E_CPU, "cpu-type",
+ &error_abort);
+ object_property_set_int(OBJECT(&s->cpus), ms->smp.cpus, "num-harts",
+ &error_abort);
+ sysbus_init_child_obj(obj, "riscv.sifive.e.gpio0",
+ &s->gpio, sizeof(s->gpio),
+ TYPE_SIFIVE_GPIO);
+}
+
+static void riscv_sifive_e_soc_realize(DeviceState *dev, Error **errp)
+{
+ MachineState *ms = MACHINE(qdev_get_machine());
+ const struct MemmapEntry *memmap = sifive_e_memmap;
+ Error *err = NULL;
+
+ SiFiveESoCState *s = RISCV_E_SOC(dev);
+ MemoryRegion *sys_mem = get_system_memory();
+
+ object_property_set_bool(OBJECT(&s->cpus), true, "realized",
+ &error_abort);
+
/* Mask ROM */
- memory_region_init_rom(mask_rom, NULL, "riscv.sifive.e.mrom",
+ memory_region_init_rom(&s->mask_rom, NULL, "riscv.sifive.e.mrom",
memmap[SIFIVE_E_MROM].size, &error_fatal);
memory_region_add_subregion(sys_mem,
- memmap[SIFIVE_E_MROM].base, mask_rom);
+ memmap[SIFIVE_E_MROM].base, &s->mask_rom);
/* MMIO */
s->plic = sifive_plic_create(memmap[SIFIVE_E_PLIC].base,
SIFIVE_E_PLIC_CONTEXT_STRIDE,
memmap[SIFIVE_E_PLIC].size);
sifive_clint_create(memmap[SIFIVE_E_CLINT].base,
- memmap[SIFIVE_E_CLINT].size, smp_cpus,
+ memmap[SIFIVE_E_CLINT].size, ms->smp.cpus,
SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE);
- sifive_mmio_emulate(sys_mem, "riscv.sifive.e.aon",
+ create_unimplemented_device("riscv.sifive.e.aon",
memmap[SIFIVE_E_AON].base, memmap[SIFIVE_E_AON].size);
- sifive_prci_create(memmap[SIFIVE_E_PRCI].base);
- sifive_mmio_emulate(sys_mem, "riscv.sifive.e.gpio0",
- memmap[SIFIVE_E_GPIO0].base, memmap[SIFIVE_E_GPIO0].size);
+ sifive_e_prci_create(memmap[SIFIVE_E_PRCI].base);
+
+ /* GPIO */
+
+ object_property_set_bool(OBJECT(&s->gpio), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ /* Map GPIO registers */
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio), 0, memmap[SIFIVE_E_GPIO0].base);
+
+ /* Pass all GPIOs to the SOC layer so they are available to the board */
+ qdev_pass_gpios(DEVICE(&s->gpio), dev, NULL);
+
+ /* Connect GPIO interrupts to the PLIC */
+ for (int i = 0; i < 32; i++) {
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), i,
+ qdev_get_gpio_in(DEVICE(s->plic),
+ SIFIVE_E_GPIO0_IRQ0 + i));
+ }
+
sifive_uart_create(sys_mem, memmap[SIFIVE_E_UART0].base,
- serial_hd(0), SIFIVE_PLIC(s->plic)->irqs[SIFIVE_E_UART0_IRQ]);
- sifive_mmio_emulate(sys_mem, "riscv.sifive.e.qspi0",
+ serial_hd(0), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_E_UART0_IRQ));
+ create_unimplemented_device("riscv.sifive.e.qspi0",
memmap[SIFIVE_E_QSPI0].base, memmap[SIFIVE_E_QSPI0].size);
- sifive_mmio_emulate(sys_mem, "riscv.sifive.e.pwm0",
+ create_unimplemented_device("riscv.sifive.e.pwm0",
memmap[SIFIVE_E_PWM0].base, memmap[SIFIVE_E_PWM0].size);
- /* sifive_uart_create(sys_mem, memmap[SIFIVE_E_UART1].base,
- serial_hd(1), SIFIVE_PLIC(s->plic)->irqs[SIFIVE_E_UART1_IRQ]); */
- sifive_mmio_emulate(sys_mem, "riscv.sifive.e.qspi1",
+ sifive_uart_create(sys_mem, memmap[SIFIVE_E_UART1].base,
+ serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_E_UART1_IRQ));
+ create_unimplemented_device("riscv.sifive.e.qspi1",
memmap[SIFIVE_E_QSPI1].base, memmap[SIFIVE_E_QSPI1].size);
- sifive_mmio_emulate(sys_mem, "riscv.sifive.e.pwm1",
+ create_unimplemented_device("riscv.sifive.e.pwm1",
memmap[SIFIVE_E_PWM1].base, memmap[SIFIVE_E_PWM1].size);
- sifive_mmio_emulate(sys_mem, "riscv.sifive.e.qspi2",
+ create_unimplemented_device("riscv.sifive.e.qspi2",
memmap[SIFIVE_E_QSPI2].base, memmap[SIFIVE_E_QSPI2].size);
- sifive_mmio_emulate(sys_mem, "riscv.sifive.e.pwm2",
+ create_unimplemented_device("riscv.sifive.e.pwm2",
memmap[SIFIVE_E_PWM2].base, memmap[SIFIVE_E_PWM2].size);
/* Flash memory */
- memory_region_init_ram(xip_mem, NULL, "riscv.sifive.e.xip",
+ memory_region_init_ram(&s->xip_mem, NULL, "riscv.sifive.e.xip",
memmap[SIFIVE_E_XIP].size, &error_fatal);
- memory_region_set_readonly(xip_mem, true);
- memory_region_add_subregion(sys_mem, memmap[SIFIVE_E_XIP].base, xip_mem);
-
- /* Mask ROM reset vector */
- uint32_t reset_vec[2] = {
- 0x204002b7, /* 0x1000: lui t0,0x20400 */
- 0x00028067, /* 0x1004: jr t0 */
- };
-
- /* copy in the reset vector in little_endian byte order */
- for (i = 0; i < sizeof(reset_vec) >> 2; i++) {
- reset_vec[i] = cpu_to_le32(reset_vec[i]);
- }
- rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec),
- memmap[SIFIVE_E_MROM].base, &address_space_memory);
-
- if (machine->kernel_filename) {
- load_kernel(machine->kernel_filename);
- }
+ memory_region_set_readonly(&s->xip_mem, true);
+ memory_region_add_subregion(sys_mem, memmap[SIFIVE_E_XIP].base,
+ &s->xip_mem);
}
static void riscv_sifive_e_machine_init(MachineClass *mc)
}
DEFINE_MACHINE("sifive_e", riscv_sifive_e_machine_init)
+
+static void riscv_sifive_e_soc_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+
+ dc->realize = riscv_sifive_e_soc_realize;
+ /* Reason: Uses serial_hds in realize function, thus can't be used twice */
+ dc->user_creatable = false;
+}
+
+static const TypeInfo riscv_sifive_e_soc_type_info = {
+ .name = TYPE_RISCV_E_SOC,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(SiFiveESoCState),
+ .instance_init = riscv_sifive_e_soc_init,
+ .class_init = riscv_sifive_e_soc_class_init,
+};
+
+static void riscv_sifive_e_soc_register_types(void)
+{
+ type_register_static(&riscv_sifive_e_soc_type_info);
+}
+
+type_init(riscv_sifive_e_soc_register_types)
projects / qemu.git / blobdiff