forked from Minki/linux
058f88d672
Modify the way how RapidIO switch operations are declared. Multiple assignments through the linker script replaced by single initialization call. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Thomas Moll <thomas.moll@sysgo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
/*
|
|
* RapidIO Tsi500 switch support
|
|
*
|
|
* Copyright 2009-2010 Integrated Device Technology, Inc.
|
|
* Alexandre Bounine <alexandre.bounine@idt.com>
|
|
* - 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 "../rio.h"
|
|
|
|
static int
|
|
tsi500_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 table, u16 route_destid, u8 route_port)
|
|
{
|
|
int i;
|
|
u32 offset = 0x10000 + 0xa00 + ((route_destid / 2)&~0x3);
|
|
u32 result;
|
|
|
|
if (table == 0xff) {
|
|
rio_mport_read_config_32(mport, destid, hopcount, offset, &result);
|
|
result &= ~(0xf << (4*(route_destid & 0x7)));
|
|
for (i=0;i<4;i++)
|
|
rio_mport_write_config_32(mport, destid, hopcount, offset + (0x20000*i), result | (route_port << (4*(route_destid & 0x7))));
|
|
}
|
|
else {
|
|
rio_mport_read_config_32(mport, destid, hopcount, offset + (0x20000*table), &result);
|
|
result &= ~(0xf << (4*(route_destid & 0x7)));
|
|
rio_mport_write_config_32(mport, destid, hopcount, offset + (0x20000*table), result | (route_port << (4*(route_destid & 0x7))));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
tsi500_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 table, u16 route_destid, u8 *route_port)
|
|
{
|
|
int ret = 0;
|
|
u32 offset = 0x10000 + 0xa00 + ((route_destid / 2)&~0x3);
|
|
u32 result;
|
|
|
|
if (table == 0xff)
|
|
rio_mport_read_config_32(mport, destid, hopcount, offset, &result);
|
|
else
|
|
rio_mport_read_config_32(mport, destid, hopcount, offset + (0x20000*table), &result);
|
|
|
|
result &= 0xf << (4*(route_destid & 0x7));
|
|
*route_port = result >> (4*(route_destid & 0x7));
|
|
if (*route_port > 3)
|
|
ret = -1;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int tsi500_switch_init(struct rio_dev *rdev, int do_enum)
|
|
{
|
|
pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
|
|
rdev->rswitch->add_entry = tsi500_route_add_entry;
|
|
rdev->rswitch->get_entry = tsi500_route_get_entry;
|
|
rdev->rswitch->clr_table = NULL;
|
|
rdev->rswitch->em_init = NULL;
|
|
rdev->rswitch->em_handle = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI500, tsi500_switch_init);
|