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
20 static 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
mv88e6123_61_65_probe(struct device * host_dev,int sw_addr)32 static 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
mv88e6123_61_65_setup_global(struct dsa_switch * ds)38 static 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
mv88e6123_61_65_setup(struct dsa_switch * ds)71 static 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
103 struct 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
122 MODULE_ALIAS("platform:mv88e6123");
123 MODULE_ALIAS("platform:mv88e6161");
124 MODULE_ALIAS("platform:mv88e6165");
125