projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| eb188d0e MP |
1 | /* |
| 2 | * RapidIO Tsi500 switch support | |
| 3 | * | |
| 058f88d6 AB |
4 | * Copyright 2009-2010 Integrated Device Technology, Inc. |
| 5 | * Alexandre Bounine <alexandre.bounine@idt.com> | |
| 6 | * - Modified switch operations initialization. | |
| 7 | * | |
| eb188d0e MP |
8 | * Copyright 2005 MontaVista Software, Inc. |
| 9 | * Matt Porter <mporter@kernel.crashing.org> | |
| 10 | * | |
| 11 | * This program is free software; you can redistribute it and/or modify it | |
| 12 | * under the terms of the GNU General Public License as published by the | |
| 13 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 14 | * option) any later version. | |
| 15 | */ | |
| 16 | ||
| 17 | #include <linux/rio.h> | |
| 18 | #include <linux/rio_drv.h> | |
| 19 | #include <linux/rio_ids.h> | |
| 20 | #include "../rio.h" | |
| 21 | ||
| 22 | static int | |
| 23 | tsi500_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 table, u16 route_destid, u8 route_port) | |
| 24 | { | |
| 25 | int i; | |
| 26 | u32 offset = 0x10000 + 0xa00 + ((route_destid / 2)&~0x3); | |
| 27 | u32 result; | |
| 28 | ||
| 29 | if (table == 0xff) { | |
| 30 | rio_mport_read_config_32(mport, destid, hopcount, offset, &result); | |
| 31 | result &= ~(0xf << (4*(route_destid & 0x7))); | |
| 32 | for (i=0;i<4;i++) | |
| 33 | rio_mport_write_config_32(mport, destid, hopcount, offset + (0x20000*i), result | (route_port << (4*(route_destid & 0x7)))); | |
| 34 | } | |
| 35 | else { | |
| 36 | rio_mport_read_config_32(mport, destid, hopcount, offset + (0x20000*table), &result); | |
| 37 | result &= ~(0xf << (4*(route_destid & 0x7))); | |
| 38 | rio_mport_write_config_32(mport, destid, hopcount, offset + (0x20000*table), result | (route_port << (4*(route_destid & 0x7)))); | |
| 39 | } | |
| 40 | ||
| 41 | return 0; | |
| 42 | } | |
| 43 | ||
| 44 | static int | |
| 45 | tsi500_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 table, u16 route_destid, u8 *route_port) | |
| 46 | { | |
| 47 | int ret = 0; | |
| 48 | u32 offset = 0x10000 + 0xa00 + ((route_destid / 2)&~0x3); | |
| 49 | u32 result; | |
| 50 | ||
| 51 | if (table == 0xff) | |
| 52 | rio_mport_read_config_32(mport, destid, hopcount, offset, &result); | |
| 53 | else | |
| 54 | rio_mport_read_config_32(mport, destid, hopcount, offset + (0x20000*table), &result); | |
| 55 | ||
| 56 | result &= 0xf << (4*(route_destid & 0x7)); | |
| 57 | *route_port = result >> (4*(route_destid & 0x7)); | |
| 58 | if (*route_port > 3) | |
| 59 | ret = -1; | |
| 60 | ||
| 61 | return ret; | |
| 62 | } | |
| 63 | ||
| 058f88d6 AB |
64 | static int tsi500_switch_init(struct rio_dev *rdev, int do_enum) |
| 65 | { | |
| 66 | pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev)); | |
| 67 | rdev->rswitch->add_entry = tsi500_route_add_entry; | |
| 68 | rdev->rswitch->get_entry = tsi500_route_get_entry; | |
| 69 | rdev->rswitch->clr_table = NULL; | |
| 7a88d628 AB |
70 | rdev->rswitch->set_domain = NULL; |
| 71 | rdev->rswitch->get_domain = NULL; | |
| 058f88d6 AB |
72 | rdev->rswitch->em_init = NULL; |
| 73 | rdev->rswitch->em_handle = NULL; | |
| 74 | ||
| 75 | return 0; | |
| 76 | } | |
| 77 | ||
| 78 | DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI500, tsi500_switch_init); |