3 * TI X3130 pci express downstream 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/>.
25 #include "xio3130_downstream.h"
27 #define PCI_DEVICE_ID_TI_XIO3130D 0x8233 /* downstream port */
28 #define XIO3130_REVISION 0x1
29 #define XIO3130_MSI_OFFSET 0x70
30 #define XIO3130_MSI_SUPPORTED_FLAGS PCI_MSI_FLAGS_64BIT
31 #define XIO3130_MSI_NR_VECTOR 1
32 #define XIO3130_SSVID_OFFSET 0x80
33 #define XIO3130_SSVID_SVID 0
34 #define XIO3130_SSVID_SSID 0
35 #define XIO3130_EXP_OFFSET 0x90
36 #define XIO3130_AER_OFFSET 0x100
38 static void xio3130_downstream_write_config(PCIDevice *d, uint32_t address,
39 uint32_t val, int len)
41 pci_bridge_write_config(d, address, val, len);
42 pcie_cap_flr_write_config(d, address, val, len);
43 pcie_cap_slot_write_config(d, address, val, len);
44 msi_write_config(d, address, val, len);
45 pcie_aer_write_config(d, address, val, len);
48 static void xio3130_downstream_reset(DeviceState *qdev)
50 PCIDevice *d = DO_UPCAST(PCIDevice, qdev, qdev);
52 pcie_cap_deverr_reset(d);
53 pcie_cap_slot_reset(d);
54 pcie_cap_ari_reset(d);
55 pci_bridge_reset(qdev);
58 static int xio3130_downstream_initfn(PCIDevice *d)
60 PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
61 PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
62 PCIESlot *s = DO_UPCAST(PCIESlot, port, p);
66 rc = pci_bridge_initfn(d);
71 pcie_port_init_reg(d);
72 pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_TI);
73 pci_config_set_device_id(d->config, PCI_DEVICE_ID_TI_XIO3130D);
74 d->config[PCI_REVISION_ID] = XIO3130_REVISION;
76 rc = msi_init(d, XIO3130_MSI_OFFSET, XIO3130_MSI_NR_VECTOR,
77 XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_64BIT,
78 XIO3130_MSI_SUPPORTED_FLAGS & PCI_MSI_FLAGS_MASKBIT);
82 rc = pci_bridge_ssvid_init(d, XIO3130_SSVID_OFFSET,
83 XIO3130_SSVID_SVID, XIO3130_SSVID_SSID);
87 rc = pcie_cap_init(d, XIO3130_EXP_OFFSET, PCI_EXP_TYPE_DOWNSTREAM,
93 pcie_cap_deverr_init(d);
94 pcie_cap_slot_init(d, s->slot);
95 pcie_chassis_create(s->chassis);
96 rc = pcie_chassis_add_slot(s);
100 pcie_cap_ari_init(d);
101 rc = pcie_aer_init(d, XIO3130_AER_OFFSET);
109 pcie_chassis_del_slot(s);
115 tmp = pci_bridge_exitfn(d);
120 static int xio3130_downstream_exitfn(PCIDevice *d)
122 PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
123 PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
124 PCIESlot *s = DO_UPCAST(PCIESlot, port, p);
127 pcie_chassis_del_slot(s);
130 return pci_bridge_exitfn(d);
133 PCIESlot *xio3130_downstream_init(PCIBus *bus, int devfn, bool multifunction,
134 const char *bus_name, pci_map_irq_fn map_irq,
135 uint8_t port, uint8_t chassis,
142 d = pci_create_multifunction(bus, devfn, multifunction,
143 "xio3130-downstream");
147 br = DO_UPCAST(PCIBridge, dev, d);
149 qdev = &br->dev.qdev;
150 pci_bridge_map_irq(br, bus_name, map_irq);
151 qdev_prop_set_uint8(qdev, "port", port);
152 qdev_prop_set_uint8(qdev, "chassis", chassis);
153 qdev_prop_set_uint16(qdev, "slot", slot);
154 qdev_init_nofail(qdev);
156 return DO_UPCAST(PCIESlot, port, DO_UPCAST(PCIEPort, br, br));
159 static const VMStateDescription vmstate_xio3130_downstream = {
160 .name = "xio3130-express-downstream-port",
162 .minimum_version_id = 1,
163 .minimum_version_id_old = 1,
164 .post_load = pcie_cap_slot_post_load,
165 .fields = (VMStateField[]) {
166 VMSTATE_PCIE_DEVICE(port.br.dev, PCIESlot),
167 VMSTATE_STRUCT(port.br.dev.exp.aer_log, PCIESlot, 0,
168 vmstate_pcie_aer_log, PCIEAERLog),
169 VMSTATE_END_OF_LIST()
173 static PCIDeviceInfo xio3130_downstream_info = {
174 .qdev.name = "xio3130-downstream",
175 .qdev.desc = "TI X3130 Downstream Port of PCI Express Switch",
176 .qdev.size = sizeof(PCIESlot),
177 .qdev.reset = xio3130_downstream_reset,
178 .qdev.vmsd = &vmstate_xio3130_downstream,
182 .config_write = xio3130_downstream_write_config,
183 .init = xio3130_downstream_initfn,
184 .exit = xio3130_downstream_exitfn,
186 .qdev.props = (Property[]) {
187 DEFINE_PROP_UINT8("port", PCIESlot, port.port, 0),
188 DEFINE_PROP_UINT8("chassis", PCIESlot, chassis, 0),
189 DEFINE_PROP_UINT16("slot", PCIESlot, slot, 0),
190 DEFINE_PROP_UINT16("aer_log_max", PCIESlot,
191 port.br.dev.exp.aer_log.log_max,
192 PCIE_AER_LOG_MAX_DEFAULT),
193 DEFINE_PROP_END_OF_LIST(),
197 static void xio3130_downstream_register(void)
199 pci_qdev_register(&xio3130_downstream_info);
202 device_init(xio3130_downstream_register);
209 * indent-tab-mode: nil