1 /* 2 * Xilinx Zynq MPSoC emulation 3 * 4 * Copyright (C) 2015 Xilinx Inc 5 * Written by Peter Crosthwaite <peter.crosthwaite@xilinx.com> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 * for more details. 16 */ 17 18 #include "hw/arm/xlnx-zynqmp.h" 19 #include "exec/address-spaces.h" 20 21 #define GIC_NUM_SPI_INTR 160 22 23 #define GIC_BASE_ADDR 0xf9000000 24 #define GIC_DIST_ADDR 0xf9010000 25 #define GIC_CPU_ADDR 0xf9020000 26 27 typedef struct XlnxZynqMPGICRegion { 28 int region_index; 29 uint32_t address; 30 } XlnxZynqMPGICRegion; 31 32 static const XlnxZynqMPGICRegion xlnx_zynqmp_gic_regions[] = { 33 { .region_index = 0, .address = GIC_DIST_ADDR, }, 34 { .region_index = 1, .address = GIC_CPU_ADDR, }, 35 }; 36 37 static void xlnx_zynqmp_init(Object *obj) 38 { 39 XlnxZynqMPState *s = XLNX_ZYNQMP(obj); 40 int i; 41 42 for (i = 0; i < XLNX_ZYNQMP_NUM_CPUS; i++) { 43 object_initialize(&s->cpu[i], sizeof(s->cpu[i]), 44 "cortex-a53-" TYPE_ARM_CPU); 45 object_property_add_child(obj, "cpu[*]", OBJECT(&s->cpu[i]), 46 &error_abort); 47 } 48 49 object_initialize(&s->gic, sizeof(s->gic), TYPE_ARM_GIC); 50 qdev_set_parent_bus(DEVICE(&s->gic), sysbus_get_default()); 51 } 52 53 static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp) 54 { 55 XlnxZynqMPState *s = XLNX_ZYNQMP(dev); 56 MemoryRegion *system_memory = get_system_memory(); 57 uint8_t i; 58 Error *err = NULL; 59 60 qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", GIC_NUM_SPI_INTR + 32); 61 qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2); 62 qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", XLNX_ZYNQMP_NUM_CPUS); 63 object_property_set_bool(OBJECT(&s->gic), true, "realized", &err); 64 if (err) { 65 error_propagate((errp), (err)); 66 return; 67 } 68 assert(ARRAY_SIZE(xlnx_zynqmp_gic_regions) == XLNX_ZYNQMP_GIC_REGIONS); 69 for (i = 0; i < XLNX_ZYNQMP_GIC_REGIONS; i++) { 70 SysBusDevice *gic = SYS_BUS_DEVICE(&s->gic); 71 const XlnxZynqMPGICRegion *r = &xlnx_zynqmp_gic_regions[i]; 72 MemoryRegion *mr = sysbus_mmio_get_region(gic, r->region_index); 73 uint32_t addr = r->address; 74 int j; 75 76 sysbus_mmio_map(gic, r->region_index, addr); 77 78 for (j = 0; j < XLNX_ZYNQMP_GIC_ALIASES; j++) { 79 MemoryRegion *alias = &s->gic_mr[i][j]; 80 81 addr += XLNX_ZYNQMP_GIC_REGION_SIZE; 82 memory_region_init_alias(alias, OBJECT(s), "zynqmp-gic-alias", mr, 83 0, XLNX_ZYNQMP_GIC_REGION_SIZE); 84 memory_region_add_subregion(system_memory, addr, alias); 85 } 86 } 87 88 for (i = 0; i < XLNX_ZYNQMP_NUM_CPUS; i++) { 89 object_property_set_int(OBJECT(&s->cpu[i]), QEMU_PSCI_CONDUIT_SMC, 90 "psci-conduit", &error_abort); 91 if (i > 0) { 92 /* Secondary CPUs start in PSCI powered-down state */ 93 object_property_set_bool(OBJECT(&s->cpu[i]), true, 94 "start-powered-off", &error_abort); 95 } 96 97 object_property_set_int(OBJECT(&s->cpu[i]), GIC_BASE_ADDR, 98 "reset-cbar", &err); 99 if (err) { 100 error_propagate((errp), (err)); 101 return; 102 } 103 104 object_property_set_bool(OBJECT(&s->cpu[i]), true, "realized", &err); 105 if (err) { 106 error_propagate((errp), (err)); 107 return; 108 } 109 110 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i, 111 qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_IRQ)); 112 } 113 } 114 115 static void xlnx_zynqmp_class_init(ObjectClass *oc, void *data) 116 { 117 DeviceClass *dc = DEVICE_CLASS(oc); 118 119 dc->realize = xlnx_zynqmp_realize; 120 } 121 122 static const TypeInfo xlnx_zynqmp_type_info = { 123 .name = TYPE_XLNX_ZYNQMP, 124 .parent = TYPE_DEVICE, 125 .instance_size = sizeof(XlnxZynqMPState), 126 .instance_init = xlnx_zynqmp_init, 127 .class_init = xlnx_zynqmp_class_init, 128 }; 129 130 static void xlnx_zynqmp_register_types(void) 131 { 132 type_register_static(&xlnx_zynqmp_type_info); 133 } 134 135 type_init(xlnx_zynqmp_register_types) 136