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qemu/hw/microblaze/xlnx-zynqmp-pmu.c

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/*
* Xilinx Zynq MPSoC PMU (Power Management Unit) emulation
*
* Copyright (C) 2017 Xilinx Inc
* Written by Alistair Francis <alistair.francis@xilinx.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "exec/address-spaces.h"
#include "hw/boards.h"
#include "cpu.h"
#include "boot.h"
#include "hw/intc/xlnx-zynqmp-ipi.h"
#include "hw/intc/xlnx-pmu-iomod-intc.h"
/* Define the PMU device */
#define TYPE_XLNX_ZYNQMP_PMU_SOC "xlnx,zynqmp-pmu-soc"
#define XLNX_ZYNQMP_PMU_SOC(obj) OBJECT_CHECK(XlnxZynqMPPMUSoCState, (obj), \
TYPE_XLNX_ZYNQMP_PMU_SOC)
#define XLNX_ZYNQMP_PMU_ROM_SIZE 0x8000
#define XLNX_ZYNQMP_PMU_ROM_ADDR 0xFFD00000
#define XLNX_ZYNQMP_PMU_RAM_ADDR 0xFFDC0000
#define XLNX_ZYNQMP_PMU_INTC_ADDR 0xFFD40000
#define XLNX_ZYNQMP_PMU_NUM_IPIS 4
static const uint64_t ipi_addr[XLNX_ZYNQMP_PMU_NUM_IPIS] = {
0xFF340000, 0xFF350000, 0xFF360000, 0xFF370000,
};
static const uint64_t ipi_irq[XLNX_ZYNQMP_PMU_NUM_IPIS] = {
19, 20, 21, 22,
};
typedef struct XlnxZynqMPPMUSoCState {
/*< private >*/
DeviceState parent_obj;
/*< public >*/
MicroBlazeCPU cpu;
XlnxPMUIOIntc intc;
XlnxZynqMPIPI ipi[XLNX_ZYNQMP_PMU_NUM_IPIS];
} XlnxZynqMPPMUSoCState;
static void xlnx_zynqmp_pmu_soc_init(Object *obj)
{
XlnxZynqMPPMUSoCState *s = XLNX_ZYNQMP_PMU_SOC(obj);
object_initialize_child(obj, "pmu-cpu", &s->cpu, TYPE_MICROBLAZE_CPU);
object_initialize_child(obj, "intc", &s->intc, TYPE_XLNX_PMU_IO_INTC);
/* Create the IPI device */
for (int i = 0; i < XLNX_ZYNQMP_PMU_NUM_IPIS; i++) {
char *name = g_strdup_printf("ipi%d", i);
object_initialize_child(obj, name, &s->ipi[i], TYPE_XLNX_ZYNQMP_IPI);
g_free(name);
}
}
static void xlnx_zynqmp_pmu_soc_realize(DeviceState *dev, Error **errp)
{
XlnxZynqMPPMUSoCState *s = XLNX_ZYNQMP_PMU_SOC(dev);
object_property_set_uint(OBJECT(&s->cpu), "base-vectors",
XLNX_ZYNQMP_PMU_ROM_ADDR, &error_abort);
object_property_set_bool(OBJECT(&s->cpu), "use-stack-protection", true,
&error_abort);
object_property_set_uint(OBJECT(&s->cpu), "use-fpu", 0, &error_abort);
object_property_set_uint(OBJECT(&s->cpu), "use-hw-mul", 0, &error_abort);
object_property_set_bool(OBJECT(&s->cpu), "use-barrel", true,
&error_abort);
object_property_set_bool(OBJECT(&s->cpu), "use-msr-instr", true,
&error_abort);
object_property_set_bool(OBJECT(&s->cpu), "use-pcmp-instr", true,
&error_abort);
object_property_set_bool(OBJECT(&s->cpu), "use-mmu", false, &error_abort);
object_property_set_bool(OBJECT(&s->cpu), "endianness", true,
&error_abort);
object_property_set_str(OBJECT(&s->cpu), "version", "8.40.b",
&error_abort);
object_property_set_uint(OBJECT(&s->cpu), "pvr", 0, &error_abort);
if (!qdev_realize(DEVICE(&s->cpu), NULL, errp)) {
return;
}
object_property_set_uint(OBJECT(&s->intc), "intc-intr-size", 0x10,
&error_abort);
object_property_set_uint(OBJECT(&s->intc), "intc-level-edge", 0x0,
&error_abort);
object_property_set_uint(OBJECT(&s->intc), "intc-positive", 0xffff,
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->intc), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->intc), 0, XLNX_ZYNQMP_PMU_INTC_ADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->intc), 0,
qdev_get_gpio_in(DEVICE(&s->cpu), MB_CPU_IRQ));
/* Connect the IPI device */
for (int i = 0; i < XLNX_ZYNQMP_PMU_NUM_IPIS; i++) {
sysbus_realize(SYS_BUS_DEVICE(&s->ipi[i]), &error_abort);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->ipi[i]), 0, ipi_addr[i]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->ipi[i]), 0,
qdev_get_gpio_in(DEVICE(&s->intc), ipi_irq[i]));
}
}
static void xlnx_zynqmp_pmu_soc_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = xlnx_zynqmp_pmu_soc_realize;
}
static const TypeInfo xlnx_zynqmp_pmu_soc_type_info = {
.name = TYPE_XLNX_ZYNQMP_PMU_SOC,
.parent = TYPE_DEVICE,
.instance_size = sizeof(XlnxZynqMPPMUSoCState),
.instance_init = xlnx_zynqmp_pmu_soc_init,
.class_init = xlnx_zynqmp_pmu_soc_class_init,
};
static void xlnx_zynqmp_pmu_soc_register_types(void)
{
type_register_static(&xlnx_zynqmp_pmu_soc_type_info);
}
type_init(xlnx_zynqmp_pmu_soc_register_types)
/* Define the PMU Machine */
static void xlnx_zynqmp_pmu_init(MachineState *machine)
{
XlnxZynqMPPMUSoCState *pmu = g_new0(XlnxZynqMPPMUSoCState, 1);
MemoryRegion *address_space_mem = get_system_memory();
MemoryRegion *pmu_rom = g_new(MemoryRegion, 1);
MemoryRegion *pmu_ram = g_new(MemoryRegion, 1);
/* Create the ROM */
memory_region_init_rom(pmu_rom, NULL, "xlnx-zynqmp-pmu.rom",
XLNX_ZYNQMP_PMU_ROM_SIZE, &error_fatal);
memory_region_add_subregion(address_space_mem, XLNX_ZYNQMP_PMU_ROM_ADDR,
pmu_rom);
/* Create the RAM */
memory_region_init_ram(pmu_ram, NULL, "xlnx-zynqmp-pmu.ram",
machine->ram_size, &error_fatal);
memory_region_add_subregion(address_space_mem, XLNX_ZYNQMP_PMU_RAM_ADDR,
pmu_ram);
/* Create the PMU device */
object_initialize_child(OBJECT(machine), "pmu", pmu,
TYPE_XLNX_ZYNQMP_PMU_SOC);
qdev_realize(DEVICE(pmu), NULL, &error_fatal);
/* Load the kernel */
microblaze_load_kernel(&pmu->cpu, XLNX_ZYNQMP_PMU_RAM_ADDR,
machine->ram_size,
machine->initrd_filename,
machine->dtb,
NULL);
}
static void xlnx_zynqmp_pmu_machine_init(MachineClass *mc)
{
mc->desc = "Xilinx ZynqMP PMU machine";
mc->init = xlnx_zynqmp_pmu_init;
}
DEFINE_MACHINE("xlnx-zynqmp-pmu", xlnx_zynqmp_pmu_machine_init)
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