150 строки
4.0 KiB
C
150 строки
4.0 KiB
C
/*
|
|
* IDT CPS RapidIO switches support
|
|
*
|
|
* Copyright 2009-2010 Integrated Device Technology, Inc.
|
|
* Alexandre Bounine <alexandre.bounine@idt.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*/
|
|
|
|
#include <linux/rio.h>
|
|
#include <linux/rio_drv.h>
|
|
#include <linux/rio_ids.h>
|
|
#include "../rio.h"
|
|
|
|
#define CPS_DEFAULT_ROUTE 0xde
|
|
#define CPS_NO_ROUTE 0xdf
|
|
|
|
#define IDTCPS_RIO_DOMAIN 0xf20020
|
|
|
|
static int
|
|
idtcps_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
|
|
u16 table, u16 route_destid, u8 route_port)
|
|
{
|
|
u32 result;
|
|
|
|
if (route_port == RIO_INVALID_ROUTE)
|
|
route_port = CPS_DEFAULT_ROUTE;
|
|
|
|
if (table == RIO_GLOBAL_TABLE) {
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
|
|
|
|
rio_mport_read_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
|
|
|
|
result = (0xffffff00 & result) | (u32)route_port;
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_PORT_SEL_CSR, result);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
idtcps_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
|
|
u16 table, u16 route_destid, u8 *route_port)
|
|
{
|
|
u32 result;
|
|
|
|
if (table == RIO_GLOBAL_TABLE) {
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
|
|
|
|
rio_mport_read_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
|
|
|
|
if (CPS_DEFAULT_ROUTE == (u8)result ||
|
|
CPS_NO_ROUTE == (u8)result)
|
|
*route_port = RIO_INVALID_ROUTE;
|
|
else
|
|
*route_port = (u8)result;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
idtcps_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
|
|
u16 table)
|
|
{
|
|
u32 i;
|
|
|
|
if (table == RIO_GLOBAL_TABLE) {
|
|
for (i = 0x80000000; i <= 0x800000ff;) {
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_DESTID_SEL_CSR, i);
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
RIO_STD_RTE_CONF_PORT_SEL_CSR,
|
|
(CPS_DEFAULT_ROUTE << 24) |
|
|
(CPS_DEFAULT_ROUTE << 16) |
|
|
(CPS_DEFAULT_ROUTE << 8) | CPS_DEFAULT_ROUTE);
|
|
i += 4;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
idtcps_set_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
|
|
u8 sw_domain)
|
|
{
|
|
/*
|
|
* Switch domain configuration operates only at global level
|
|
*/
|
|
rio_mport_write_config_32(mport, destid, hopcount,
|
|
IDTCPS_RIO_DOMAIN, (u32)sw_domain);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
idtcps_get_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
|
|
u8 *sw_domain)
|
|
{
|
|
u32 regval;
|
|
|
|
/*
|
|
* Switch domain configuration operates only at global level
|
|
*/
|
|
rio_mport_read_config_32(mport, destid, hopcount,
|
|
IDTCPS_RIO_DOMAIN, ®val);
|
|
|
|
*sw_domain = (u8)(regval & 0xff);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int idtcps_switch_init(struct rio_dev *rdev, int do_enum)
|
|
{
|
|
pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
|
|
rdev->rswitch->add_entry = idtcps_route_add_entry;
|
|
rdev->rswitch->get_entry = idtcps_route_get_entry;
|
|
rdev->rswitch->clr_table = idtcps_route_clr_table;
|
|
rdev->rswitch->set_domain = idtcps_set_domain;
|
|
rdev->rswitch->get_domain = idtcps_get_domain;
|
|
rdev->rswitch->em_init = NULL;
|
|
rdev->rswitch->em_handle = NULL;
|
|
|
|
if (do_enum) {
|
|
/* set TVAL = ~50us */
|
|
rio_write_config_32(rdev,
|
|
rdev->phys_efptr + RIO_PORT_LINKTO_CTL_CSR, 0x8e << 8);
|
|
/* Ensure that default routing is disabled on startup */
|
|
rio_write_config_32(rdev,
|
|
RIO_STD_RTE_DEFAULT_PORT, CPS_NO_ROUTE);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS6Q, idtcps_switch_init);
|
|
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS8, idtcps_switch_init);
|
|
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS10Q, idtcps_switch_init);
|
|
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS12, idtcps_switch_init);
|
|
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS16, idtcps_switch_init);
|
|
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDT70K200, idtcps_switch_init);
|