3 * TI X3130 pci express upstream port switch
5 * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
6 * VA Linux Systems Japan K.K.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, see <http://www.gnu.org/licenses/>.
22 #include "qemu/osdep.h"
23 #include "hw/pci/pci_ids.h"
24 #include "hw/pci/msi.h"
25 #include "hw/pci/pcie.h"
26 #include "xio3130_upstream.h"
28 #define PCI_DEVICE_ID_TI_XIO3130U 0x8232 /* upstream port */
29 #define XIO3130_REVISION 0x2
30 #define XIO3130_MSI_OFFSET 0x70
31 #define XIO3130_MSI_SUPPORTED_FLAGS PCI_MSI_FLAGS_64BIT
32 #define XIO3130_MSI_NR_VECTOR 1
33 #define XIO3130_SSVID_OFFSET 0x80
34 #define XIO3130_SSVID_SVID 0
35 #define XIO3130_SSVID_SSID 0
36 #define XIO3130_EXP_OFFSET 0x90
37 #define XIO3130_AER_OFFSET 0x100
39 static void xio3130_upstream_write_config(PCIDevice *d, uint32_t address,
40 uint32_t val, int len)
42 pci_bridge_write_config(d, address, val, len);
43 pcie_cap_flr_write_config(d, address, val, len);
44 pcie_aer_write_config(d, address, val, len);
47 static void xio3130_upstream_reset(DeviceState *qdev)
49 PCIDevice *d = PCI_DEVICE(qdev);
51 pci_bridge_reset(qdev);
52 pcie_cap_deverr_reset(d);
55 static void xio3130_upstream_realize(PCIDevice *d, Error **errp)
57 PCIEPort *p = PCIE_PORT(d);
60 pci_bridge_initfn(d, TYPE_PCIE_BUS);
61 pcie_port_init_reg(d);
63 rc = msi_init(d, XIO3130_MSI_OFFSET, XIO3130_MSI_NR_VECTOR,
64 XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_64BIT,
65 XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_MASKBIT,
68 assert(rc == -ENOTSUP);
72 rc = pci_bridge_ssvid_init(d, XIO3130_SSVID_OFFSET,
73 XIO3130_SSVID_SVID, XIO3130_SSVID_SSID,
79 rc = pcie_cap_init(d, XIO3130_EXP_OFFSET, PCI_EXP_TYPE_UPSTREAM,
85 pcie_cap_deverr_init(d);
87 rc = pcie_aer_init(d, PCI_ERR_VER, XIO3130_AER_OFFSET,
88 PCI_ERR_SIZEOF, errp);
100 pci_bridge_exitfn(d);
103 static void xio3130_upstream_exitfn(PCIDevice *d)
108 pci_bridge_exitfn(d);
111 PCIEPort *xio3130_upstream_init(PCIBus *bus, int devfn, bool multifunction,
112 const char *bus_name, pci_map_irq_fn map_irq,
119 d = pci_create_multifunction(bus, devfn, multifunction, "x3130-upstream");
126 pci_bridge_map_irq(br, bus_name, map_irq);
127 qdev_prop_set_uint8(qdev, "port", port);
128 qdev_init_nofail(qdev);
133 static const VMStateDescription vmstate_xio3130_upstream = {
134 .name = "xio3130-express-upstream-port",
135 .priority = MIG_PRI_PCI_BUS,
137 .minimum_version_id = 1,
138 .fields = (VMStateField[]) {
139 VMSTATE_PCI_DEVICE(parent_obj.parent_obj, PCIEPort),
140 VMSTATE_STRUCT(parent_obj.parent_obj.exp.aer_log, PCIEPort, 0,
141 vmstate_pcie_aer_log, PCIEAERLog),
142 VMSTATE_END_OF_LIST()
146 static void xio3130_upstream_class_init(ObjectClass *klass, void *data)
148 DeviceClass *dc = DEVICE_CLASS(klass);
149 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
152 k->config_write = xio3130_upstream_write_config;
153 k->realize = xio3130_upstream_realize;
154 k->exit = xio3130_upstream_exitfn;
155 k->vendor_id = PCI_VENDOR_ID_TI;
156 k->device_id = PCI_DEVICE_ID_TI_XIO3130U;
157 k->revision = XIO3130_REVISION;
158 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
159 dc->desc = "TI X3130 Upstream Port of PCI Express Switch";
160 dc->reset = xio3130_upstream_reset;
161 dc->vmsd = &vmstate_xio3130_upstream;
164 static const TypeInfo xio3130_upstream_info = {
165 .name = "x3130-upstream",
166 .parent = TYPE_PCIE_PORT,
167 .class_init = xio3130_upstream_class_init,
168 .interfaces = (InterfaceInfo[]) {
169 { INTERFACE_PCIE_DEVICE },
174 static void xio3130_upstream_register_types(void)
176 type_register_static(&xio3130_upstream_info);
179 type_init(xio3130_upstream_register_types)