linux-imx

/*

 * RapidIO Tsi568 switch support

 *

 * Copyright 2009-2010 Integrated Device Technology, Inc.

 * Alexandre Bounine <alexandre.bounine@idt.com>

 *  - Added EM support

 *  - Modified switch operations initialization.

 *

 * Copyright 2005 MontaVista Software, Inc.

 * Matt Porter <mporter@kernel.crashing.org>

 *

 * 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 <linux/delay.h>

#include <linux/module.h>

#include "../rio.h"

​

/* Global (broadcast) route registers */

#define SPBC_ROUTE_CFG_DESTID   0x10070

#define SPBC_ROUTE_CFG_PORT 0x10074

​

/* Per port route registers */

#define SPP_ROUTE_CFG_DESTID(n) (0x11070 + 0x100*n)

#define SPP_ROUTE_CFG_PORT(n)   (0x11074 + 0x100*n)

​

#define TSI568_SP_MODE(n)   (0x11004 + 0x100*n)

#define  TSI568_SP_MODE_PW_DIS  0x08000000

​

static int

tsi568_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,

               u16 table, u16 route_destid, u8 route_port)

{

    if (table == RIO_GLOBAL_TABLE) {

        rio_mport_write_config_32(mport, destid, hopcount,

                    SPBC_ROUTE_CFG_DESTID, route_destid);

        rio_mport_write_config_32(mport, destid, hopcount,

                    SPBC_ROUTE_CFG_PORT, route_port);

    } else {

        rio_mport_write_config_32(mport, destid, hopcount,

                    SPP_ROUTE_CFG_DESTID(table),

                    route_destid);

        rio_mport_write_config_32(mport, destid, hopcount,

                    SPP_ROUTE_CFG_PORT(table), route_port);

    }

​

    udelay(10);

​

    return 0;

}

​

static int

tsi568_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,

               u16 table, u16 route_destid, u8 *route_port)

{

    int ret = 0;

    u32 result;

​

    if (table == RIO_GLOBAL_TABLE) {

        rio_mport_write_config_32(mport, destid, hopcount,

                    SPBC_ROUTE_CFG_DESTID, route_destid);

        rio_mport_read_config_32(mport, destid, hopcount,

                    SPBC_ROUTE_CFG_PORT, &result);

    } else {

        rio_mport_write_config_32(mport, destid, hopcount,

                    SPP_ROUTE_CFG_DESTID(table),

                    route_destid);

        rio_mport_read_config_32(mport, destid, hopcount,

                    SPP_ROUTE_CFG_PORT(table), &result);

    }

​

    *route_port = result;

    if (*route_port > 15)

        ret = -1;

​

    return ret;

}

​

static int

tsi568_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,

               u16 table)

{

    u32 route_idx;

    u32 lut_size;

​

    lut_size = (mport->sys_size) ? 0x1ff : 0xff;