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/*
* net/dsa/mv88e6123_61_65.c - Marvell 88e6123/6161/6165 switch chip support
* Copyright (c) 2008-2009 Marvell Semiconductor
*
* 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/delay.h>
#include <linux/jiffies.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/phy.h>
#include <net/dsa.h>
#include "mv88e6xxx.h"
static char *mv88e6123_61_65_probe(struct device *host_dev, int sw_addr)
{
struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
int ret;
if (bus == NULL)
return NULL;
ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), PORT_SWITCH_ID);
if (ret >= 0) {
if (ret == PORT_SWITCH_ID_6123_A1)
return "Marvell 88E6123 (A1)";
if (ret == PORT_SWITCH_ID_6123_A2)
return "Marvell 88E6123 (A2)";
if ((ret & 0xfff0) == PORT_SWITCH_ID_6123)
return "Marvell 88E6123";
if (ret == PORT_SWITCH_ID_6161_A1)
return "Marvell 88E6161 (A1)";
if (ret == PORT_SWITCH_ID_6161_A2)
return "Marvell 88E6161 (A2)";
if ((ret & 0xfff0) == PORT_SWITCH_ID_6161)
return "Marvell 88E6161";
if (ret == PORT_SWITCH_ID_6165_A1)
return "Marvell 88E6165 (A1)";
if (ret == PORT_SWITCH_ID_6165_A2)
return "Marvell 88e6165 (A2)";
if ((ret & 0xfff0) == PORT_SWITCH_ID_6165)
return "Marvell 88E6165";
}
return NULL;
}
static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
{
int ret;
ret = mv88e6xxx_setup_global(ds);
if (ret)
return ret;
/* Disable the PHY polling unit (since there won't be any
* external PHYs to poll), don't discard packets with
* excessive collisions, and mask all interrupt sources.
*/
REG_WRITE(REG_GLOBAL, 0x04, 0x0000);
/* Configure the upstream port, and configure the upstream
* port as the port to which ingress and egress monitor frames
* are to be sent.
*/
REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1110));
/* Disable remote management for now, and set the switch's
* DSA device number.
*/
REG_WRITE(REG_GLOBAL, 0x1c, ds->index & 0x1f);
return 0;
}
static int mv88e6123_61_65_setup(struct dsa_switch *ds)
{
struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
int ret;
ret = mv88e6xxx_setup_common(ds);
if (ret < 0)
return ret;
switch (ps->id) {
case PORT_SWITCH_ID_6123:
ps->num_ports = 3;
break;
case PORT_SWITCH_ID_6161:
case PORT_SWITCH_ID_6165:
ps->num_ports = 6;
break;
default:
return -ENODEV;
}
ret = mv88e6xxx_switch_reset(ds, false);
if (ret < 0)
return ret;
ret = mv88e6123_61_65_setup_global(ds);
if (ret < 0)
return ret;
return mv88e6xxx_setup_ports(ds);
}
struct dsa_switch_driver mv88e6123_61_65_switch_driver = {
.tag_protocol = DSA_TAG_PROTO_EDSA,
.priv_size = sizeof(struct mv88e6xxx_priv_state),
.probe = mv88e6123_61_65_probe,
.setup = mv88e6123_61_65_setup,
.set_addr = mv88e6xxx_set_addr_indirect,
.phy_read = mv88e6xxx_phy_read,
.phy_write = mv88e6xxx_phy_write,
.poll_link = mv88e6xxx_poll_link,
.get_strings = mv88e6xxx_get_strings,
.get_ethtool_stats = mv88e6xxx_get_ethtool_stats,
.get_sset_count = mv88e6xxx_get_sset_count,
#ifdef CONFIG_NET_DSA_HWMON
.get_temp = mv88e6xxx_get_temp,
#endif
.get_regs_len = mv88e6xxx_get_regs_len,
.get_regs = mv88e6xxx_get_regs,
};
MODULE_ALIAS("platform:mv88e6123");
MODULE_ALIAS("platform:mv88e6161");
MODULE_ALIAS("platform:mv88e6165");
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