1 /* net/dsa/mv88e6171.c - Marvell 88e6171 switch chip support
2 * Copyright (c) 2008-2009 Marvell Semiconductor
3 * Copyright (c) 2014 Claudio Leite <leitec@staticky.com>
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
20 static const struct mv88e6xxx_switch_id mv88e6171_table[] = {
21 { PORT_SWITCH_ID_6171, "Marvell 88E6171" },
22 { PORT_SWITCH_ID_6175, "Marvell 88E6175" },
23 { PORT_SWITCH_ID_6350, "Marvell 88E6350" },
24 { PORT_SWITCH_ID_6351, "Marvell 88E6351" },
25 };
26
mv88e6171_probe(struct device * host_dev,int sw_addr)27 static char *mv88e6171_probe(struct device *host_dev, int sw_addr)
28 {
29 return mv88e6xxx_lookup_name(host_dev, sw_addr, mv88e6171_table,
30 ARRAY_SIZE(mv88e6171_table));
31 }
32
mv88e6171_setup_global(struct dsa_switch * ds)33 static int mv88e6171_setup_global(struct dsa_switch *ds)
34 {
35 u32 upstream_port = dsa_upstream_port(ds);
36 int ret;
37 u32 reg;
38
39 ret = mv88e6xxx_setup_global(ds);
40 if (ret)
41 return ret;
42
43 /* Discard packets with excessive collisions, mask all
44 * interrupt sources, enable PPU.
45 */
46 REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL,
47 GLOBAL_CONTROL_PPU_ENABLE | GLOBAL_CONTROL_DISCARD_EXCESS);
48
49 /* Configure the upstream port, and configure the upstream
50 * port as the port to which ingress and egress monitor frames
51 * are to be sent.
52 */
53 reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
54 upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
55 upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT |
56 upstream_port << GLOBAL_MONITOR_CONTROL_MIRROR_SHIFT;
57 REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
58
59 /* Disable remote management for now, and set the switch's
60 * DSA device number.
61 */
62 REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL_2, ds->index & 0x1f);
63
64 return 0;
65 }
66
mv88e6171_setup(struct dsa_switch * ds)67 static int mv88e6171_setup(struct dsa_switch *ds)
68 {
69 struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
70 int ret;
71
72 ret = mv88e6xxx_setup_common(ds);
73 if (ret < 0)
74 return ret;
75
76 ps->num_ports = 7;
77
78 ret = mv88e6xxx_switch_reset(ds, true);
79 if (ret < 0)
80 return ret;
81
82 ret = mv88e6171_setup_global(ds);
83 if (ret < 0)
84 return ret;
85
86 return mv88e6xxx_setup_ports(ds);
87 }
88
89 struct dsa_switch_driver mv88e6171_switch_driver = {
90 .tag_protocol = DSA_TAG_PROTO_EDSA,
91 .priv_size = sizeof(struct mv88e6xxx_priv_state),
92 .probe = mv88e6171_probe,
93 .setup = mv88e6171_setup,
94 .set_addr = mv88e6xxx_set_addr_indirect,
95 .phy_read = mv88e6xxx_phy_read_indirect,
96 .phy_write = mv88e6xxx_phy_write_indirect,
97 .get_strings = mv88e6xxx_get_strings,
98 .get_ethtool_stats = mv88e6xxx_get_ethtool_stats,
99 .get_sset_count = mv88e6xxx_get_sset_count,
100 .adjust_link = mv88e6xxx_adjust_link,
101 #ifdef CONFIG_NET_DSA_HWMON
102 .get_temp = mv88e6xxx_get_temp,
103 #endif
104 .get_regs_len = mv88e6xxx_get_regs_len,
105 .get_regs = mv88e6xxx_get_regs,
106 .port_join_bridge = mv88e6xxx_port_bridge_join,
107 .port_leave_bridge = mv88e6xxx_port_bridge_leave,
108 .port_stp_update = mv88e6xxx_port_stp_update,
109 .port_pvid_get = mv88e6xxx_port_pvid_get,
110 .port_vlan_prepare = mv88e6xxx_port_vlan_prepare,
111 .port_vlan_add = mv88e6xxx_port_vlan_add,
112 .port_vlan_del = mv88e6xxx_port_vlan_del,
113 .vlan_getnext = mv88e6xxx_vlan_getnext,
114 .port_fdb_prepare = mv88e6xxx_port_fdb_prepare,
115 .port_fdb_add = mv88e6xxx_port_fdb_add,
116 .port_fdb_del = mv88e6xxx_port_fdb_del,
117 .port_fdb_dump = mv88e6xxx_port_fdb_dump,
118 };
119
120 MODULE_ALIAS("platform:mv88e6171");
121 MODULE_ALIAS("platform:mv88e6175");
122 MODULE_ALIAS("platform:mv88e6350");
123 MODULE_ALIAS("platform:mv88e6351");
124