1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18#include <linux/rio.h>
19#include <linux/rio_drv.h>
20#include <linux/rio_ids.h>
21#include <linux/delay.h>
22#include <linux/module.h>
23#include "../rio.h"
24
25
26#define SPBC_ROUTE_CFG_DESTID 0x10070
27#define SPBC_ROUTE_CFG_PORT 0x10074
28
29
30#define SPP_ROUTE_CFG_DESTID(n) (0x11070 + 0x100*n)
31#define SPP_ROUTE_CFG_PORT(n) (0x11074 + 0x100*n)
32
33#define TSI568_SP_MODE(n) (0x11004 + 0x100*n)
34#define TSI568_SP_MODE_PW_DIS 0x08000000
35
36static int
37tsi568_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
38 u16 table, u16 route_destid, u8 route_port)
39{
40 if (table == RIO_GLOBAL_TABLE) {
41 rio_mport_write_config_32(mport, destid, hopcount,
42 SPBC_ROUTE_CFG_DESTID, route_destid);
43 rio_mport_write_config_32(mport, destid, hopcount,
44 SPBC_ROUTE_CFG_PORT, route_port);
45 } else {
46 rio_mport_write_config_32(mport, destid, hopcount,
47 SPP_ROUTE_CFG_DESTID(table),
48 route_destid);
49 rio_mport_write_config_32(mport, destid, hopcount,
50 SPP_ROUTE_CFG_PORT(table), route_port);
51 }
52
53 udelay(10);
54
55 return 0;
56}
57
58static int
59tsi568_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
60 u16 table, u16 route_destid, u8 *route_port)
61{
62 int ret = 0;
63 u32 result;
64
65 if (table == RIO_GLOBAL_TABLE) {
66 rio_mport_write_config_32(mport, destid, hopcount,
67 SPBC_ROUTE_CFG_DESTID, route_destid);
68 rio_mport_read_config_32(mport, destid, hopcount,
69 SPBC_ROUTE_CFG_PORT, &result);
70 } else {
71 rio_mport_write_config_32(mport, destid, hopcount,
72 SPP_ROUTE_CFG_DESTID(table),
73 route_destid);
74 rio_mport_read_config_32(mport, destid, hopcount,
75 SPP_ROUTE_CFG_PORT(table), &result);
76 }
77
78 *route_port = result;
79 if (*route_port > 15)
80 ret = -1;
81
82 return ret;
83}
84
85static int
86tsi568_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
87 u16 table)
88{
89 u32 route_idx;
90 u32 lut_size;
91
92 lut_size = (mport->sys_size) ? 0x1ff : 0xff;
93
94 if (table == RIO_GLOBAL_TABLE) {
95 rio_mport_write_config_32(mport, destid, hopcount,
96 SPBC_ROUTE_CFG_DESTID, 0x80000000);
97 for (route_idx = 0; route_idx <= lut_size; route_idx++)
98 rio_mport_write_config_32(mport, destid, hopcount,
99 SPBC_ROUTE_CFG_PORT,
100 RIO_INVALID_ROUTE);
101 } else {
102 rio_mport_write_config_32(mport, destid, hopcount,
103 SPP_ROUTE_CFG_DESTID(table),
104 0x80000000);
105 for (route_idx = 0; route_idx <= lut_size; route_idx++)
106 rio_mport_write_config_32(mport, destid, hopcount,
107 SPP_ROUTE_CFG_PORT(table),
108 RIO_INVALID_ROUTE);
109 }
110
111 return 0;
112}
113
114static int
115tsi568_em_init(struct rio_dev *rdev)
116{
117 u32 regval;
118 int portnum;
119
120 pr_debug("TSI568 %s [%d:%d]\n", __func__, rdev->destid, rdev->hopcount);
121
122
123 for (portnum = 0;
124 portnum < RIO_GET_TOTAL_PORTS(rdev->swpinfo); portnum++) {
125 rio_read_config_32(rdev, TSI568_SP_MODE(portnum), ®val);
126 rio_write_config_32(rdev, TSI568_SP_MODE(portnum),
127 regval | TSI568_SP_MODE_PW_DIS);
128 }
129
130 return 0;
131}
132
133static struct rio_switch_ops tsi568_switch_ops = {
134 .owner = THIS_MODULE,
135 .add_entry = tsi568_route_add_entry,
136 .get_entry = tsi568_route_get_entry,
137 .clr_table = tsi568_route_clr_table,
138 .set_domain = NULL,
139 .get_domain = NULL,
140 .em_init = tsi568_em_init,
141 .em_handle = NULL,
142};
143
144static int tsi568_probe(struct rio_dev *rdev, const struct rio_device_id *id)
145{
146 pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
147
148 spin_lock(&rdev->rswitch->lock);
149
150 if (rdev->rswitch->ops) {
151 spin_unlock(&rdev->rswitch->lock);
152 return -EINVAL;
153 }
154
155 rdev->rswitch->ops = &tsi568_switch_ops;
156 spin_unlock(&rdev->rswitch->lock);
157 return 0;
158}
159
160static void tsi568_remove(struct rio_dev *rdev)
161{
162 pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
163 spin_lock(&rdev->rswitch->lock);
164 if (rdev->rswitch->ops != &tsi568_switch_ops) {
165 spin_unlock(&rdev->rswitch->lock);
166 return;
167 }
168 rdev->rswitch->ops = NULL;
169 spin_unlock(&rdev->rswitch->lock);
170}
171
172static struct rio_device_id tsi568_id_table[] = {
173 {RIO_DEVICE(RIO_DID_TSI568, RIO_VID_TUNDRA)},
174 { 0, }
175};
176
177static struct rio_driver tsi568_driver = {
178 .name = "tsi568",
179 .id_table = tsi568_id_table,
180 .probe = tsi568_probe,
181 .remove = tsi568_remove,
182};
183
184static int __init tsi568_init(void)
185{
186 return rio_register_driver(&tsi568_driver);
187}
188
189static void __exit tsi568_exit(void)
190{
191 rio_unregister_driver(&tsi568_driver);
192}
193
194device_initcall(tsi568_init);
195module_exit(tsi568_exit);
196
197MODULE_DESCRIPTION("IDT Tsi568 Serial RapidIO switch driver");
198MODULE_AUTHOR("Integrated Device Technology, Inc.");
199MODULE_LICENSE("GPL");
200
