xref: /openbmc/qemu/hw/ppc/e500plat.c (revision 5964ed56)
1 /*
2  * Generic device-tree-driven paravirt PPC e500 platform
3  *
4  * Copyright 2012 Freescale Semiconductor, Inc.
5  *
6  * This is free software; you can redistribute it and/or modify
7  * it under the terms of  the GNU General  Public License as published by
8  * the Free Software Foundation;  either version 2 of the  License, or
9  * (at your option) any later version.
10  */
11 
12 #include "qemu/osdep.h"
13 #include "qemu/units.h"
14 #include "e500.h"
15 #include "hw/net/fsl_etsec/etsec.h"
16 #include "sysemu/device_tree.h"
17 #include "sysemu/kvm.h"
18 #include "hw/sysbus.h"
19 #include "hw/pci/pci.h"
20 #include "hw/ppc/openpic.h"
21 #include "kvm_ppc.h"
22 
23 static void e500plat_fixup_devtree(void *fdt)
24 {
25     const char model[] = "QEMU ppce500";
26     const char compatible[] = "fsl,qemu-e500";
27 
28     qemu_fdt_setprop(fdt, "/", "model", model, sizeof(model));
29     qemu_fdt_setprop(fdt, "/", "compatible", compatible,
30                      sizeof(compatible));
31 }
32 
33 static void e500plat_init(MachineState *machine)
34 {
35     PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(machine);
36     /* Older KVM versions don't support EPR which breaks guests when we announce
37        MPIC variants that support EPR. Revert to an older one for those */
38     if (kvm_enabled() && !kvmppc_has_cap_epr()) {
39         pmc->mpic_version = OPENPIC_MODEL_FSL_MPIC_20;
40     }
41 
42     ppce500_init(machine);
43 }
44 
45 static void e500plat_machine_device_plug_cb(HotplugHandler *hotplug_dev,
46                                             DeviceState *dev, Error **errp)
47 {
48     PPCE500MachineState *pms = PPCE500_MACHINE(hotplug_dev);
49 
50     if (pms->pbus_dev) {
51         if (object_dynamic_cast(OBJECT(dev), TYPE_SYS_BUS_DEVICE)) {
52             platform_bus_link_device(pms->pbus_dev, SYS_BUS_DEVICE(dev));
53         }
54     }
55 }
56 
57 static
58 HotplugHandler *e500plat_machine_get_hotpug_handler(MachineState *machine,
59                                                     DeviceState *dev)
60 {
61     if (object_dynamic_cast(OBJECT(dev), TYPE_SYS_BUS_DEVICE)) {
62         return HOTPLUG_HANDLER(machine);
63     }
64 
65     return NULL;
66 }
67 
68 #define TYPE_E500PLAT_MACHINE  MACHINE_TYPE_NAME("ppce500")
69 
70 static void e500plat_machine_class_init(ObjectClass *oc, void *data)
71 {
72     PPCE500MachineClass *pmc = PPCE500_MACHINE_CLASS(oc);
73     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
74     MachineClass *mc = MACHINE_CLASS(oc);
75 
76     assert(!mc->get_hotplug_handler);
77     mc->get_hotplug_handler = e500plat_machine_get_hotpug_handler;
78     hc->plug = e500plat_machine_device_plug_cb;
79 
80     pmc->pci_first_slot = 0x1;
81     pmc->pci_nr_slots = PCI_SLOT_MAX - 1;
82     pmc->fixup_devtree = e500plat_fixup_devtree;
83     pmc->mpic_version = OPENPIC_MODEL_FSL_MPIC_42;
84     pmc->has_mpc8xxx_gpio = true;
85     pmc->has_platform_bus = true;
86     pmc->platform_bus_base = 0xf00000000ULL;
87     pmc->platform_bus_size = 128 * MiB;
88     pmc->platform_bus_first_irq = 5;
89     pmc->platform_bus_num_irqs = 10;
90     pmc->ccsrbar_base = 0xFE0000000ULL;
91     pmc->pci_pio_base = 0xFE1000000ULL;
92     pmc->pci_mmio_base = 0xC00000000ULL;
93     pmc->pci_mmio_bus_base = 0xE0000000ULL;
94     pmc->spin_base = 0xFEF000000ULL;
95 
96     mc->desc = "generic paravirt e500 platform";
97     mc->init = e500plat_init;
98     mc->max_cpus = 32;
99     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("e500v2_v30");
100     mc->default_ram_id = "mpc8544ds.ram";
101     machine_class_allow_dynamic_sysbus_dev(mc, TYPE_ETSEC_COMMON);
102  }
103 
104 static const TypeInfo e500plat_info = {
105     .name          = TYPE_E500PLAT_MACHINE,
106     .parent        = TYPE_PPCE500_MACHINE,
107     .class_init    = e500plat_machine_class_init,
108     .interfaces    = (InterfaceInfo[]) {
109          { TYPE_HOTPLUG_HANDLER },
110          { }
111     }
112 };
113 
114 static void e500plat_register_types(void)
115 {
116     type_register_static(&e500plat_info);
117 }
118 type_init(e500plat_register_types)
119