1/*
  2 * net/dsa/mv88e6123_61_65.c - Marvell 88e6123/6161/6165 switch chip support
  3 * Copyright (c) 2008-2009 Marvell Semiconductor
  4 *
  5 * This program is free software; you can redistribute it and/or modify
  6 * it under the terms of the GNU General Public License as published by
  7 * the Free Software Foundation; either version 2 of the License, or
  8 * (at your option) any later version.
  9 */
 10
 11#include <linux/delay.h>
 12#include <linux/jiffies.h>
 13#include <linux/list.h>
 14#include <linux/module.h>
 15#include <linux/netdevice.h>
 16#include <linux/phy.h>
 17#include <net/dsa.h>
 18#include "mv88e6xxx.h"
 19
 20static const struct mv88e6xxx_switch_id mv88e6123_table[] = {
 21	{ PORT_SWITCH_ID_6123, "Marvell 88E6123" },
 22	{ PORT_SWITCH_ID_6123_A1, "Marvell 88E6123 (A1)" },
 23	{ PORT_SWITCH_ID_6123_A2, "Marvell 88E6123 (A2)" },
 24	{ PORT_SWITCH_ID_6161, "Marvell 88E6161" },
 25	{ PORT_SWITCH_ID_6161_A1, "Marvell 88E6161 (A1)" },
 26	{ PORT_SWITCH_ID_6161_A2, "Marvell 88E6161 (A2)" },
 27	{ PORT_SWITCH_ID_6165, "Marvell 88E6165" },
 28	{ PORT_SWITCH_ID_6165_A1, "Marvell 88E6165 (A1)" },
 29	{ PORT_SWITCH_ID_6165_A2, "Marvell 88e6165 (A2)" },
 30};
 31
 32static char *mv88e6123_probe(struct device *host_dev, int sw_addr)
 33{
 34	return mv88e6xxx_lookup_name(host_dev, sw_addr, mv88e6123_table,
 35				     ARRAY_SIZE(mv88e6123_table));
 36}
 37
 38static int mv88e6123_setup_global(struct dsa_switch *ds)
 39{
 40	u32 upstream_port = dsa_upstream_port(ds);
 41	int ret;
 42	u32 reg;
 43
 44	ret = mv88e6xxx_setup_global(ds);
 45	if (ret)
 46		return ret;
 47
 48	/* Disable the PHY polling unit (since there won't be any
 49	 * external PHYs to poll), don't discard packets with
 50	 * excessive collisions, and mask all interrupt sources.
 51	 */
 52	REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL, 0x0000);
 53
 54	/* Configure the upstream port, and configure the upstream
 55	 * port as the port to which ingress and egress monitor frames
 56	 * are to be sent.
 57	 */
 58	reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
 59		upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
 60		upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT;
 61	REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
 62
 63	/* Disable remote management for now, and set the switch's
 64	 * DSA device number.
 65	 */
 66	REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL_2, ds->index & 0x1f);
 67
 68	return 0;
 69}
 70
 71static int mv88e6123_setup(struct dsa_switch *ds)
 72{
 73	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 74	int ret;
 75
 76	ret = mv88e6xxx_setup_common(ds);
 77	if (ret < 0)
 78		return ret;
 79
 80	switch (ps->id) {
 81	case PORT_SWITCH_ID_6123:
 82		ps->num_ports = 3;
 83		break;
 84	case PORT_SWITCH_ID_6161:
 85	case PORT_SWITCH_ID_6165:
 86		ps->num_ports = 6;
 87		break;
 88	default:
 89		return -ENODEV;
 90	}
 91
 92	ret = mv88e6xxx_switch_reset(ds, false);
 93	if (ret < 0)
 94		return ret;
 95
 96	ret = mv88e6123_setup_global(ds);
 97	if (ret < 0)
 98		return ret;
 99
100	return mv88e6xxx_setup_ports(ds);
101}
102
103struct dsa_switch_driver mv88e6123_switch_driver = {
104	.tag_protocol		= DSA_TAG_PROTO_EDSA,
105	.priv_size		= sizeof(struct mv88e6xxx_priv_state),
106	.probe			= mv88e6123_probe,
107	.setup			= mv88e6123_setup,
108	.set_addr		= mv88e6xxx_set_addr_indirect,
109	.phy_read		= mv88e6xxx_phy_read,
110	.phy_write		= mv88e6xxx_phy_write,
111	.get_strings		= mv88e6xxx_get_strings,
112	.get_ethtool_stats	= mv88e6xxx_get_ethtool_stats,
113	.get_sset_count		= mv88e6xxx_get_sset_count,
114	.adjust_link		= mv88e6xxx_adjust_link,
115#ifdef CONFIG_NET_DSA_HWMON
116	.get_temp		= mv88e6xxx_get_temp,
117#endif
118	.get_regs_len		= mv88e6xxx_get_regs_len,
119	.get_regs		= mv88e6xxx_get_regs,
120};
121
122MODULE_ALIAS("platform:mv88e6123");
123MODULE_ALIAS("platform:mv88e6161");
124MODULE_ALIAS("platform:mv88e6165");