/* * Xilinx Zynq MPSoC PMU (Power Management Unit) emulation * * Copyright (C) 2017 Xilinx Inc * Written by Alistair Francis * * 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" #include "qom/object.h" /* Define the PMU device */ #define TYPE_XLNX_ZYNQMP_PMU_SOC "xlnx-zynqmp-pmu-soc" OBJECT_DECLARE_SIMPLE_TYPE(XlnxZynqMPPMUSoCState, 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, }; struct XlnxZynqMPPMUSoCState { /*< private >*/ DeviceState parent_obj; /*< public >*/ MicroBlazeCPU cpu; XlnxPMUIOIntc intc; XlnxZynqMPIPI ipi[XLNX_ZYNQMP_PMU_NUM_IPIS]; }; 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), "little-endian", 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); /* xlnx-zynqmp-pmu-soc causes crashes when cold-plugged twice */ dc->user_creatable = false; 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) { #if TARGET_BIG_ENDIAN mc->desc = "Xilinx ZynqMP PMU machine (big endian)"; mc->deprecation_reason = "big endian support is not tested"; #else mc->desc = "Xilinx ZynqMP PMU machine (little endian)"; #endif mc->init = xlnx_zynqmp_pmu_init; } DEFINE_MACHINE("xlnx-zynqmp-pmu", xlnx_zynqmp_pmu_machine_init)