2 * net/dsa/mv88e6131.c - Marvell 88e6095/6095f/6131 switch chip support
3 * Copyright (c) 2008-2009 Marvell Semiconductor
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.
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>
18 #include "mv88e6xxx.h"
20 static char *mv88e6131_probe(struct device *host_dev, int sw_addr)
22 struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
28 ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), PORT_SWITCH_ID);
30 int ret_masked = ret & 0xfff0;
32 if (ret_masked == PORT_SWITCH_ID_6085)
33 return "Marvell 88E6085";
34 if (ret_masked == PORT_SWITCH_ID_6095)
35 return "Marvell 88E6095/88E6095F";
36 if (ret == PORT_SWITCH_ID_6131_B2)
37 return "Marvell 88E6131 (B2)";
38 if (ret_masked == PORT_SWITCH_ID_6131)
39 return "Marvell 88E6131";
40 if (ret_masked == PORT_SWITCH_ID_6185)
41 return "Marvell 88E6185";
47 static int mv88e6131_setup_global(struct dsa_switch *ds)
49 u32 upstream_port = dsa_upstream_port(ds);
53 ret = mv88e6xxx_setup_global(ds);
57 /* Enable the PHY polling unit, don't discard packets with
58 * excessive collisions, use a weighted fair queueing scheme
59 * to arbitrate between packet queues, set the maximum frame
60 * size to 1632, and mask all interrupt sources.
62 REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL,
63 GLOBAL_CONTROL_PPU_ENABLE | GLOBAL_CONTROL_MAX_FRAME_1632);
65 /* Set the VLAN ethertype to 0x8100. */
66 REG_WRITE(REG_GLOBAL, GLOBAL_CORE_TAG_TYPE, 0x8100);
68 /* Disable ARP mirroring, and configure the upstream port as
69 * the port to which ingress and egress monitor frames are to
72 reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
73 upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
74 GLOBAL_MONITOR_CONTROL_ARP_DISABLED;
75 REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
77 /* Disable cascade port functionality unless this device
78 * is used in a cascade configuration, and set the switch's
81 if (ds->dst->pd->nr_chips > 1)
82 REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL_2,
83 GLOBAL_CONTROL_2_MULTIPLE_CASCADE |
86 REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL_2,
87 GLOBAL_CONTROL_2_NO_CASCADE |
90 /* Force the priority of IGMP/MLD snoop frames and ARP frames
91 * to the highest setting.
93 REG_WRITE(REG_GLOBAL2, GLOBAL2_PRIO_OVERRIDE,
94 GLOBAL2_PRIO_OVERRIDE_FORCE_SNOOP |
95 7 << GLOBAL2_PRIO_OVERRIDE_SNOOP_SHIFT |
96 GLOBAL2_PRIO_OVERRIDE_FORCE_ARP |
97 7 << GLOBAL2_PRIO_OVERRIDE_ARP_SHIFT);
102 static int mv88e6131_setup(struct dsa_switch *ds)
104 struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
107 ret = mv88e6xxx_setup_common(ds);
111 mv88e6xxx_ppu_state_init(ds);
114 case PORT_SWITCH_ID_6085:
115 case PORT_SWITCH_ID_6185:
118 case PORT_SWITCH_ID_6095:
121 case PORT_SWITCH_ID_6131:
122 case PORT_SWITCH_ID_6131_B2:
129 ret = mv88e6xxx_switch_reset(ds, false);
133 ret = mv88e6131_setup_global(ds);
137 return mv88e6xxx_setup_ports(ds);
140 static int mv88e6131_port_to_phy_addr(struct dsa_switch *ds, int port)
142 struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
144 if (port >= 0 && port < ps->num_ports)
151 mv88e6131_phy_read(struct dsa_switch *ds, int port, int regnum)
153 int addr = mv88e6131_port_to_phy_addr(ds, port);
158 return mv88e6xxx_phy_read_ppu(ds, addr, regnum);
162 mv88e6131_phy_write(struct dsa_switch *ds,
163 int port, int regnum, u16 val)
165 int addr = mv88e6131_port_to_phy_addr(ds, port);
170 return mv88e6xxx_phy_write_ppu(ds, addr, regnum, val);
173 struct dsa_switch_driver mv88e6131_switch_driver = {
174 .tag_protocol = DSA_TAG_PROTO_DSA,
175 .priv_size = sizeof(struct mv88e6xxx_priv_state),
176 .probe = mv88e6131_probe,
177 .setup = mv88e6131_setup,
178 .set_addr = mv88e6xxx_set_addr_direct,
179 .phy_read = mv88e6131_phy_read,
180 .phy_write = mv88e6131_phy_write,
181 .poll_link = mv88e6xxx_poll_link,
182 .get_strings = mv88e6xxx_get_strings,
183 .get_ethtool_stats = mv88e6xxx_get_ethtool_stats,
184 .get_sset_count = mv88e6xxx_get_sset_count,
185 .adjust_link = mv88e6xxx_adjust_link,
188 MODULE_ALIAS("platform:mv88e6085");
189 MODULE_ALIAS("platform:mv88e6095");
190 MODULE_ALIAS("platform:mv88e6095f");
191 MODULE_ALIAS("platform:mv88e6131");