Matt Porter | eb188d0 | 2005-11-07 01:00:17 -0800 | [diff] [blame] | 1 | /* |
| 2 | * RapidIO Tsi500 switch support |
| 3 | * |
Alexandre Bounine | 058f88d | 2010-05-26 14:44:03 -0700 | [diff] [blame] | 4 | * Copyright 2009-2010 Integrated Device Technology, Inc. |
| 5 | * Alexandre Bounine <alexandre.bounine@idt.com> |
| 6 | * - Modified switch operations initialization. |
| 7 | * |
Matt Porter | eb188d0 | 2005-11-07 01:00:17 -0800 | [diff] [blame] | 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 | |
Alexandre Bounine | 058f88d | 2010-05-26 14:44:03 -0700 | [diff] [blame] | 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; |
Alexandre Bounine | 7a88d62 | 2010-05-26 14:44:04 -0700 | [diff] [blame] | 70 | rdev->rswitch->set_domain = NULL; |
| 71 | rdev->rswitch->get_domain = NULL; |
Alexandre Bounine | 058f88d | 2010-05-26 14:44:03 -0700 | [diff] [blame] | 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); |