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_61_65_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_61_65_probe(struct device *host_dev, int sw_addr)
33{
34	return mv88e6xxx_lookup_name(host_dev, sw_addr, mv88e6123_61_65_table,
35				     ARRAY_SIZE(mv88e6123_61_65_table));
36}
37
38static int mv88e6123_61_65_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_61_65_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_61_65_setup_global(ds);
97	if (ret < 0)
98		return ret;
99
100	return mv88e6xxx_setup_ports(ds);
101}
102
103struct dsa_switch_driver mv88e6123_61_65_switch_driver = {
104	.tag_protocol		= DSA_TAG_PROTO_EDSA,
105	.priv_size		= sizeof(struct mv88e6xxx_priv_state),
106	.probe			= mv88e6123_61_65_probe,
107	.setup			= mv88e6123_61_65_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");
125