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Release 4.11 drivers/rapidio/switches/tsi568.c

/*
 * 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; }

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Alexandre Bounine103100.00%1100.00%
Total103100.00%1100.00%


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; }

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Alexandre Bounine126100.00%1100.00%
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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; if (table == RIO_GLOBAL_TABLE) { rio_mport_write_config_32(mport, destid, hopcount, SPBC_ROUTE_CFG_DESTID, 0x80000000); for (route_idx = 0; route_idx <= lut_size; route_idx++) rio_mport_write_config_32(mport, destid, hopcount, SPBC_ROUTE_CFG_PORT, RIO_INVALID_ROUTE); } else { rio_mport_write_config_32(mport, destid, hopcount, SPP_ROUTE_CFG_DESTID(table), 0x80000000); for (route_idx = 0; route_idx <= lut_size; route_idx++) rio_mport_write_config_32(mport, destid, hopcount, SPP_ROUTE_CFG_PORT(table), RIO_INVALID_ROUTE); } return 0; }

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Alexandre Bounine136100.00%1100.00%
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static int tsi568_em_init(struct rio_dev *rdev) { u32 regval; int portnum; pr_debug("TSI568 %s [%d:%d]\n", __func__, rdev->destid, rdev->hopcount); /* Make sure that Port-Writes are disabled (for all ports) */ for (portnum = 0; portnum < RIO_GET_TOTAL_PORTS(rdev->swpinfo); portnum++) { rio_read_config_32(rdev, TSI568_SP_MODE(portnum), &regval); rio_write_config_32(rdev, TSI568_SP_MODE(portnum), regval | TSI568_SP_MODE_PW_DIS); } return 0; }

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static struct rio_switch_ops tsi568_switch_ops = { .owner = THIS_MODULE, .add_entry = tsi568_route_add_entry, .get_entry = tsi568_route_get_entry, .clr_table = tsi568_route_clr_table, .set_domain = NULL, .get_domain = NULL, .em_init = tsi568_em_init, .em_handle = NULL, };
static int tsi568_probe(struct rio_dev *rdev, const struct rio_device_id *id) { pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev)); spin_lock(&rdev->rswitch->lock); if (rdev->rswitch->ops) { spin_unlock(&rdev->rswitch->lock); return -EINVAL; } rdev->rswitch->ops = &tsi568_switch_ops; spin_unlock(&rdev->rswitch->lock); return 0; }

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Alexandre Bounine85100.00%2100.00%
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static void tsi568_remove(struct rio_dev *rdev) { pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev)); spin_lock(&rdev->rswitch->lock); if (rdev->rswitch->ops != &tsi568_switch_ops) { spin_unlock(&rdev->rswitch->lock); return; } rdev->rswitch->ops = NULL; spin_unlock(&rdev->rswitch->lock); }

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Alexandre Bounine75100.00%3100.00%
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static struct rio_device_id tsi568_id_table[] = { {RIO_DEVICE(RIO_DID_TSI568, RIO_VID_TUNDRA)}, { 0, } /* terminate list */ }; static struct rio_driver tsi568_driver = { .name = "tsi568", .id_table = tsi568_id_table, .probe = tsi568_probe, .remove = tsi568_remove, };
static int __init tsi568_init(void) { return rio_register_driver(&tsi568_driver); }

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static void __exit tsi568_exit(void) { rio_unregister_driver(&tsi568_driver); }

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device_initcall(tsi568_init); module_exit(tsi568_exit); MODULE_DESCRIPTION("IDT Tsi568 Serial RapidIO switch driver"); MODULE_AUTHOR("Integrated Device Technology, Inc."); MODULE_LICENSE("GPL");

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Alexandre Bounine814100.00%7100.00%
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