xref: /openbmc/qemu/hw/usb/xlnx-usb-subsystem.c (revision 6c769690)
1 /*
2  * QEMU model of the Xilinx usb subsystem
3  *
4  * Copyright (c) 2020 Xilinx Inc. Sai Pavan Boddu <sai.pava.boddu@xilinx.com>
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to deal
8  * in the Software without restriction, including without limitation the rights
9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  * copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 
25 #include "qemu/osdep.h"
26 #include "hw/sysbus.h"
27 #include "hw/register.h"
28 #include "qemu/bitops.h"
29 #include "qom/object.h"
30 #include "qapi/error.h"
31 #include "hw/qdev-properties.h"
32 #include "hw/usb/xlnx-usb-subsystem.h"
33 
versal_usb2_realize(DeviceState * dev,Error ** errp)34 static void versal_usb2_realize(DeviceState *dev, Error **errp)
35 {
36     VersalUsb2 *s = VERSAL_USB2(dev);
37     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
38     Error *err = NULL;
39 
40     sysbus_realize(SYS_BUS_DEVICE(&s->dwc3), &err);
41     if (err) {
42         error_propagate(errp, err);
43         return;
44     }
45     sysbus_realize(SYS_BUS_DEVICE(&s->usb2Ctrl), &err);
46     if (err) {
47         error_propagate(errp, err);
48         return;
49     }
50     sysbus_init_mmio(sbd, &s->dwc3_mr);
51     sysbus_init_mmio(sbd, &s->usb2Ctrl_mr);
52     qdev_pass_gpios(DEVICE(&s->dwc3.sysbus_xhci), dev, SYSBUS_DEVICE_GPIO_IRQ);
53 }
54 
versal_usb2_init(Object * obj)55 static void versal_usb2_init(Object *obj)
56 {
57     VersalUsb2 *s = VERSAL_USB2(obj);
58 
59     object_initialize_child(obj, "versal.dwc3", &s->dwc3,
60                             TYPE_USB_DWC3);
61     object_initialize_child(obj, "versal.usb2-ctrl", &s->usb2Ctrl,
62                             TYPE_XILINX_VERSAL_USB2_CTRL_REGS);
63     memory_region_init_alias(&s->dwc3_mr, obj, "versal.dwc3_alias",
64                              &s->dwc3.iomem, 0, DWC3_SIZE);
65     memory_region_init_alias(&s->usb2Ctrl_mr, obj, "versal.usb2Ctrl_alias",
66                              &s->usb2Ctrl.iomem, 0, USB2_REGS_R_MAX * 4);
67     qdev_alias_all_properties(DEVICE(&s->dwc3), obj);
68     qdev_alias_all_properties(DEVICE(&s->dwc3.sysbus_xhci), obj);
69     object_property_add_alias(obj, "dma", OBJECT(&s->dwc3.sysbus_xhci), "dma");
70 }
71 
versal_usb2_class_init(ObjectClass * klass,void * data)72 static void versal_usb2_class_init(ObjectClass *klass, void *data)
73 {
74     DeviceClass *dc = DEVICE_CLASS(klass);
75 
76     dc->realize = versal_usb2_realize;
77 }
78 
79 static const TypeInfo versal_usb2_info = {
80     .name          = TYPE_XILINX_VERSAL_USB2,
81     .parent        = TYPE_SYS_BUS_DEVICE,
82     .instance_size = sizeof(VersalUsb2),
83     .class_init    = versal_usb2_class_init,
84     .instance_init = versal_usb2_init,
85 };
86 
versal_usb_types(void)87 static void versal_usb_types(void)
88 {
89     type_register_static(&versal_usb2_info);
90 }
91 
92 type_init(versal_usb_types)
93