projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| eb188d0e MP |
1 | /* |
| 2 | * RapidIO Tsi500 switch support | |
| 3 | * | |
| 4 | * Copyright 2005 MontaVista Software, Inc. | |
| 5 | * Matt Porter <[email protected]> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it | |
| 8 | * under the terms of the GNU General Public License as published by the | |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 10 | * option) any later version. | |
| 11 | */ | |
| 12 | ||
| 13 | #include <linux/rio.h> | |
| 14 | #include <linux/rio_drv.h> | |
| 15 | #include <linux/rio_ids.h> | |
| 16 | #include "../rio.h" | |
| 17 | ||
| 18 | static int | |
| 19 | tsi500_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 table, u16 route_destid, u8 route_port) | |
| 20 | { | |
| 21 | int i; | |
| 22 | u32 offset = 0x10000 + 0xa00 + ((route_destid / 2)&~0x3); | |
| 23 | u32 result; | |
| 24 | ||
| 25 | if (table == 0xff) { | |
| 26 | rio_mport_read_config_32(mport, destid, hopcount, offset, &result); | |
| 27 | result &= ~(0xf << (4*(route_destid & 0x7))); | |
| 28 | for (i=0;i<4;i++) | |
| 29 | rio_mport_write_config_32(mport, destid, hopcount, offset + (0x20000*i), result | (route_port << (4*(route_destid & 0x7)))); | |
| 30 | } | |
| 31 | else { | |
| 32 | rio_mport_read_config_32(mport, destid, hopcount, offset + (0x20000*table), &result); | |
| 33 | result &= ~(0xf << (4*(route_destid & 0x7))); | |
| 34 | rio_mport_write_config_32(mport, destid, hopcount, offset + (0x20000*table), result | (route_port << (4*(route_destid & 0x7)))); | |
| 35 | } | |
| 36 | ||
| 37 | return 0; | |
| 38 | } | |
| 39 | ||
| 40 | static int | |
| 41 | tsi500_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 table, u16 route_destid, u8 *route_port) | |
| 42 | { | |
| 43 | int ret = 0; | |
| 44 | u32 offset = 0x10000 + 0xa00 + ((route_destid / 2)&~0x3); | |
| 45 | u32 result; | |
| 46 | ||
| 47 | if (table == 0xff) | |
| 48 | rio_mport_read_config_32(mport, destid, hopcount, offset, &result); | |
| 49 | else | |
| 50 | rio_mport_read_config_32(mport, destid, hopcount, offset + (0x20000*table), &result); | |
| 51 | ||
| 52 | result &= 0xf << (4*(route_destid & 0x7)); | |
| 53 | *route_port = result >> (4*(route_destid & 0x7)); | |
| 54 | if (*route_port > 3) | |
| 55 | ret = -1; | |
| 56 | ||
| 57 | return ret; | |
| 58 | } | |
| 59 | ||
| 60 | DECLARE_RIO_ROUTE_OPS(RIO_VID_TUNDRA, RIO_DID_TSI500, tsi500_route_add_entry, tsi500_route_get_entry); |