2 * RapidIO Tsi568 switch support
4 * Copyright 2009-2010 Integrated Device Technology, Inc.
5 * Alexandre Bounine <alexandre.bounine@idt.com>
7 * - Modified switch operations initialization.
9 * Copyright 2005 MontaVista Software, Inc.
10 * Matt Porter <mporter@kernel.crashing.org>
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2 of the License, or (at your
15 * option) any later version.
18 #include <linux/rio.h>
19 #include <linux/rio_drv.h>
20 #include <linux/rio_ids.h>
21 #include <linux/delay.h>
24 /* Global (broadcast) route registers */
25 #define SPBC_ROUTE_CFG_DESTID 0x10070
26 #define SPBC_ROUTE_CFG_PORT 0x10074
28 /* Per port route registers */
29 #define SPP_ROUTE_CFG_DESTID(n) (0x11070 + 0x100*n)
30 #define SPP_ROUTE_CFG_PORT(n) (0x11074 + 0x100*n)
32 #define TSI568_SP_MODE(n) (0x11004 + 0x100*n)
33 #define TSI568_SP_MODE_PW_DIS 0x08000000
36 tsi568_route_add_entry(struct rio_mport
*mport
, u16 destid
, u8 hopcount
,
37 u16 table
, u16 route_destid
, u8 route_port
)
39 if (table
== RIO_GLOBAL_TABLE
) {
40 rio_mport_write_config_32(mport
, destid
, hopcount
,
41 SPBC_ROUTE_CFG_DESTID
, route_destid
);
42 rio_mport_write_config_32(mport
, destid
, hopcount
,
43 SPBC_ROUTE_CFG_PORT
, route_port
);
45 rio_mport_write_config_32(mport
, destid
, hopcount
,
46 SPP_ROUTE_CFG_DESTID(table
),
48 rio_mport_write_config_32(mport
, destid
, hopcount
,
49 SPP_ROUTE_CFG_PORT(table
), route_port
);
58 tsi568_route_get_entry(struct rio_mport
*mport
, u16 destid
, u8 hopcount
,
59 u16 table
, u16 route_destid
, u8
*route_port
)
64 if (table
== RIO_GLOBAL_TABLE
) {
65 rio_mport_write_config_32(mport
, destid
, hopcount
,
66 SPBC_ROUTE_CFG_DESTID
, route_destid
);
67 rio_mport_read_config_32(mport
, destid
, hopcount
,
68 SPBC_ROUTE_CFG_PORT
, &result
);
70 rio_mport_write_config_32(mport
, destid
, hopcount
,
71 SPP_ROUTE_CFG_DESTID(table
),
73 rio_mport_read_config_32(mport
, destid
, hopcount
,
74 SPP_ROUTE_CFG_PORT(table
), &result
);
85 tsi568_route_clr_table(struct rio_mport
*mport
, u16 destid
, u8 hopcount
,
91 lut_size
= (mport
->sys_size
) ? 0x1ff : 0xff;
93 if (table
== RIO_GLOBAL_TABLE
) {
94 rio_mport_write_config_32(mport
, destid
, hopcount
,
95 SPBC_ROUTE_CFG_DESTID
, 0x80000000);
96 for (route_idx
= 0; route_idx
<= lut_size
; route_idx
++)
97 rio_mport_write_config_32(mport
, destid
, hopcount
,
101 rio_mport_write_config_32(mport
, destid
, hopcount
,
102 SPP_ROUTE_CFG_DESTID(table
),
104 for (route_idx
= 0; route_idx
<= lut_size
; route_idx
++)
105 rio_mport_write_config_32(mport
, destid
, hopcount
,
106 SPP_ROUTE_CFG_PORT(table
),
114 tsi568_em_init(struct rio_dev
*rdev
)
116 struct rio_mport
*mport
= rdev
->net
->hport
;
117 u16 destid
= rdev
->rswitch
->destid
;
118 u8 hopcount
= rdev
->rswitch
->hopcount
;
122 pr_debug("TSI568 %s [%d:%d]\n", __func__
, destid
, hopcount
);
124 /* Make sure that Port-Writes are disabled (for all ports) */
126 portnum
< RIO_GET_TOTAL_PORTS(rdev
->swpinfo
); portnum
++) {
127 rio_mport_read_config_32(mport
, destid
, hopcount
,
128 TSI568_SP_MODE(portnum
), ®val
);
129 rio_mport_write_config_32(mport
, destid
, hopcount
,
130 TSI568_SP_MODE(portnum
),
131 regval
| TSI568_SP_MODE_PW_DIS
);
137 static int tsi568_switch_init(struct rio_dev
*rdev
, int do_enum
)
139 pr_debug("RIO: %s for %s\n", __func__
, rio_name(rdev
));
140 rdev
->rswitch
->add_entry
= tsi568_route_add_entry
;
141 rdev
->rswitch
->get_entry
= tsi568_route_get_entry
;
142 rdev
->rswitch
->clr_table
= tsi568_route_clr_table
;
143 rdev
->rswitch
->set_domain
= NULL
;
144 rdev
->rswitch
->get_domain
= NULL
;
145 rdev
->rswitch
->em_init
= tsi568_em_init
;
146 rdev
->rswitch
->em_handle
= NULL
;
151 DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA
, RIO_DID_TSI568
, tsi568_switch_init
);