+++ /dev/null
-/*
- * net/dsa/mv88e6123_61_65.c - Marvell 88e6123/6161/6165 switch chip support
- * Copyright (c) 2008-2009 Marvell Semiconductor
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/list.h>
-#include <linux/netdevice.h>
-#include <linux/phy.h>
-#include <net/dsa.h>
-#include "mv88e6xxx.h"
-
-static char *mv88e6123_61_65_probe(struct mii_bus *bus, int sw_addr)
-{
- int ret;
-
- ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), 0x03);
- if (ret >= 0) {
- ret &= 0xfff0;
- if (ret == 0x1210)
- return "Marvell 88E6123";
- if (ret == 0x1610)
- return "Marvell 88E6161";
- if (ret == 0x1650)
- return "Marvell 88E6165";
- }
-
- return NULL;
-}
-
-static int mv88e6123_61_65_switch_reset(struct dsa_switch *ds)
-{
- int i;
- int ret;
-
- /*
- * Set all ports to the disabled state.
- */
- for (i = 0; i < 8; i++) {
- ret = REG_READ(REG_PORT(i), 0x04);
- REG_WRITE(REG_PORT(i), 0x04, ret & 0xfffc);
- }
-
- /*
- * Wait for transmit queues to drain.
- */
- msleep(2);
-
- /*
- * Reset the switch.
- */
- REG_WRITE(REG_GLOBAL, 0x04, 0xc400);
-
- /*
- * Wait up to one second for reset to complete.
- */
- for (i = 0; i < 1000; i++) {
- ret = REG_READ(REG_GLOBAL, 0x00);
- if ((ret & 0xc800) == 0xc800)
- break;
-
- msleep(1);
- }
- if (i == 1000)
- return -ETIMEDOUT;
-
- return 0;
-}
-
-static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
-{
- int ret;
- int i;
-
- /*
- * Disable the PHY polling unit (since there won't be any
- * external PHYs to poll), don't discard packets with
- * excessive collisions, and mask all interrupt sources.
- */
- REG_WRITE(REG_GLOBAL, 0x04, 0x0000);
-
- /*
- * Set the default address aging time to 5 minutes, and
- * enable address learn messages to be sent to all message
- * ports.
- */
- REG_WRITE(REG_GLOBAL, 0x0a, 0x0148);
-
- /*
- * Configure the priority mapping registers.
- */
- ret = mv88e6xxx_config_prio(ds);
- if (ret < 0)
- return ret;
-
- /*
- * Configure the upstream port, and configure the upstream
- * port as the port to which ingress and egress monitor frames
- * are to be sent.
- */
- REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1110));
-
- /*
- * Disable remote management for now, and set the switch's
- * DSA device number.
- */
- REG_WRITE(REG_GLOBAL, 0x1c, ds->index & 0x1f);
-
- /*
- * Send all frames with destination addresses matching
- * 01:80:c2:00:00:2x to the CPU port.
- */
- REG_WRITE(REG_GLOBAL2, 0x02, 0xffff);
-
- /*
- * Send all frames with destination addresses matching
- * 01:80:c2:00:00:0x to the CPU port.
- */
- REG_WRITE(REG_GLOBAL2, 0x03, 0xffff);
-
- /*
- * Disable the loopback filter, disable flow control
- * messages, disable flood broadcast override, disable
- * removing of provider tags, disable ATU age violation
- * interrupts, disable tag flow control, force flow
- * control priority to the highest, and send all special
- * multicast frames to the CPU at the highest priority.
- */
- REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
-
- /*
- * Program the DSA routing table.
- */
- for (i = 0; i < 32; i++) {
- int nexthop;
-
- nexthop = 0x1f;
- if (i != ds->index && i < ds->dst->pd->nr_chips)
- nexthop = ds->pd->rtable[i] & 0x1f;
-
- REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 | (i << 8) | nexthop);
- }
-
- /*
- * Clear all trunk masks.
- */
- for (i = 0; i < 8; i++)
- REG_WRITE(REG_GLOBAL2, 0x07, 0x8000 | (i << 12) | 0xff);
-
- /*
- * Clear all trunk mappings.
- */
- for (i = 0; i < 16; i++)
- REG_WRITE(REG_GLOBAL2, 0x08, 0x8000 | (i << 11));
-
- /*
- * Disable ingress rate limiting by resetting all ingress
- * rate limit registers to their initial state.
- */
- for (i = 0; i < 6; i++)
- REG_WRITE(REG_GLOBAL2, 0x09, 0x9000 | (i << 8));
-
- /*
- * Initialise cross-chip port VLAN table to reset defaults.
- */
- REG_WRITE(REG_GLOBAL2, 0x0b, 0x9000);
-
- /*
- * Clear the priority override table.
- */
- for (i = 0; i < 16; i++)
- REG_WRITE(REG_GLOBAL2, 0x0f, 0x8000 | (i << 8));
-
- /* @@@ initialise AVB (22/23) watchdog (27) sdet (29) registers */
-
- return 0;
-}
-
-static int mv88e6123_61_65_setup_port(struct dsa_switch *ds, int p)
-{
- int addr = REG_PORT(p);
- u16 val;
-
- /*
- * MAC Forcing register: don't force link, speed, duplex
- * or flow control state to any particular values on physical
- * ports, but force the CPU port and all DSA ports to 1000 Mb/s
- * full duplex.
- */
- if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p))
- REG_WRITE(addr, 0x01, 0x003e);
- else
- REG_WRITE(addr, 0x01, 0x0003);
-
- /*
- * Do not limit the period of time that this port can be
- * paused for by the remote end or the period of time that
- * this port can pause the remote end.
- */
- REG_WRITE(addr, 0x02, 0x0000);
-
- /*
- * Port Control: disable Drop-on-Unlock, disable Drop-on-Lock,
- * disable Header mode, enable IGMP/MLD snooping, disable VLAN
- * tunneling, determine priority by looking at 802.1p and IP
- * priority fields (IP prio has precedence), and set STP state
- * to Forwarding.
- *
- * If this is the CPU link, use DSA or EDSA tagging depending
- * on which tagging mode was configured.
- *
- * If this is a link to another switch, use DSA tagging mode.
- *
- * If this is the upstream port for this switch, enable
- * forwarding of unknown unicasts and multicasts.
- */
- val = 0x0433;
- if (dsa_is_cpu_port(ds, p)) {
- if (ds->dst->tag_protocol == htons(ETH_P_EDSA))
- val |= 0x3300;
- else
- val |= 0x0100;
- }
- if (ds->dsa_port_mask & (1 << p))
- val |= 0x0100;
- if (p == dsa_upstream_port(ds))
- val |= 0x000c;
- REG_WRITE(addr, 0x04, val);
-
- /*
- * Port Control 1: disable trunking. Also, if this is the
- * CPU port, enable learn messages to be sent to this port.
- */
- REG_WRITE(addr, 0x05, dsa_is_cpu_port(ds, p) ? 0x8000 : 0x0000);
-
- /*
- * Port based VLAN map: give each port its own address
- * database, allow the CPU port to talk to each of the 'real'
- * ports, and allow each of the 'real' ports to only talk to
- * the upstream port.
- */
- val = (p & 0xf) << 12;
- if (dsa_is_cpu_port(ds, p))
- val |= ds->phys_port_mask;
- else
- val |= 1 << dsa_upstream_port(ds);
- REG_WRITE(addr, 0x06, val);
-
- /*
- * Default VLAN ID and priority: don't set a default VLAN
- * ID, and set the default packet priority to zero.
- */
- REG_WRITE(addr, 0x07, 0x0000);
-
- /*
- * Port Control 2: don't force a good FCS, set the maximum
- * frame size to 10240 bytes, don't let the switch add or
- * strip 802.1q tags, don't discard tagged or untagged frames
- * on this port, do a destination address lookup on all
- * received packets as usual, disable ARP mirroring and don't
- * send a copy of all transmitted/received frames on this port
- * to the CPU.
- */
- REG_WRITE(addr, 0x08, 0x2080);
-
- /*
- * Egress rate control: disable egress rate control.
- */
- REG_WRITE(addr, 0x09, 0x0001);
-
- /*
- * Egress rate control 2: disable egress rate control.
- */
- REG_WRITE(addr, 0x0a, 0x0000);
-
- /*
- * Port Association Vector: when learning source addresses
- * of packets, add the address to the address database using
- * a port bitmap that has only the bit for this port set and
- * the other bits clear.
- */
- REG_WRITE(addr, 0x0b, 1 << p);
-
- /*
- * Port ATU control: disable limiting the number of address
- * database entries that this port is allowed to use.
- */
- REG_WRITE(addr, 0x0c, 0x0000);
-
- /*
- * Priorit Override: disable DA, SA and VTU priority override.
- */
- REG_WRITE(addr, 0x0d, 0x0000);
-
- /*
- * Port Ethertype: use the Ethertype DSA Ethertype value.
- */
- REG_WRITE(addr, 0x0f, ETH_P_EDSA);
-
- /*
- * Tag Remap: use an identity 802.1p prio -> switch prio
- * mapping.
- */
- REG_WRITE(addr, 0x18, 0x3210);
-
- /*
- * Tag Remap 2: use an identity 802.1p prio -> switch prio
- * mapping.
- */
- REG_WRITE(addr, 0x19, 0x7654);
-
- return 0;
-}
-
-static int mv88e6123_61_65_setup(struct dsa_switch *ds)
-{
- struct mv88e6xxx_priv_state *ps = (void *)(ds + 1);
- int i;
- int ret;
-
- mutex_init(&ps->smi_mutex);
- mutex_init(&ps->stats_mutex);
-
- ret = mv88e6123_61_65_switch_reset(ds);
- if (ret < 0)
- return ret;
-
- /* @@@ initialise vtu and atu */
-
- ret = mv88e6123_61_65_setup_global(ds);
- if (ret < 0)
- return ret;
-
- for (i = 0; i < 6; i++) {
- ret = mv88e6123_61_65_setup_port(ds, i);
- if (ret < 0)
- return ret;
- }
-
- return 0;
-}
-
-static int mv88e6123_61_65_port_to_phy_addr(int port)
-{
- if (port >= 0 && port <= 4)
- return port;
- return -1;
-}
-
-static int
-mv88e6123_61_65_phy_read(struct dsa_switch *ds, int port, int regnum)
-{
- int addr = mv88e6123_61_65_port_to_phy_addr(port);
- return mv88e6xxx_phy_read(ds, addr, regnum);
-}
-
-static int
-mv88e6123_61_65_phy_write(struct dsa_switch *ds,
- int port, int regnum, u16 val)
-{
- int addr = mv88e6123_61_65_port_to_phy_addr(port);
- return mv88e6xxx_phy_write(ds, addr, regnum, val);
-}
-
-static struct mv88e6xxx_hw_stat mv88e6123_61_65_hw_stats[] = {
- { "in_good_octets", 8, 0x00, },
- { "in_bad_octets", 4, 0x02, },
- { "in_unicast", 4, 0x04, },
- { "in_broadcasts", 4, 0x06, },
- { "in_multicasts", 4, 0x07, },
- { "in_pause", 4, 0x16, },
- { "in_undersize", 4, 0x18, },
- { "in_fragments", 4, 0x19, },
- { "in_oversize", 4, 0x1a, },
- { "in_jabber", 4, 0x1b, },
- { "in_rx_error", 4, 0x1c, },
- { "in_fcs_error", 4, 0x1d, },
- { "out_octets", 8, 0x0e, },
- { "out_unicast", 4, 0x10, },
- { "out_broadcasts", 4, 0x13, },
- { "out_multicasts", 4, 0x12, },
- { "out_pause", 4, 0x15, },
- { "excessive", 4, 0x11, },
- { "collisions", 4, 0x1e, },
- { "deferred", 4, 0x05, },
- { "single", 4, 0x14, },
- { "multiple", 4, 0x17, },
- { "out_fcs_error", 4, 0x03, },
- { "late", 4, 0x1f, },
- { "hist_64bytes", 4, 0x08, },
- { "hist_65_127bytes", 4, 0x09, },
- { "hist_128_255bytes", 4, 0x0a, },
- { "hist_256_511bytes", 4, 0x0b, },
- { "hist_512_1023bytes", 4, 0x0c, },
- { "hist_1024_max_bytes", 4, 0x0d, },
-};
-
-static void
-mv88e6123_61_65_get_strings(struct dsa_switch *ds, int port, uint8_t *data)
-{
- mv88e6xxx_get_strings(ds, ARRAY_SIZE(mv88e6123_61_65_hw_stats),
- mv88e6123_61_65_hw_stats, port, data);
-}
-
-static void
-mv88e6123_61_65_get_ethtool_stats(struct dsa_switch *ds,
- int port, uint64_t *data)
-{
- mv88e6xxx_get_ethtool_stats(ds, ARRAY_SIZE(mv88e6123_61_65_hw_stats),
- mv88e6123_61_65_hw_stats, port, data);
-}
-
-static int mv88e6123_61_65_get_sset_count(struct dsa_switch *ds)
-{
- return ARRAY_SIZE(mv88e6123_61_65_hw_stats);
-}
-
-struct dsa_switch_driver mv88e6123_61_65_switch_driver = {
- .tag_protocol = cpu_to_be16(ETH_P_EDSA),
- .priv_size = sizeof(struct mv88e6xxx_priv_state),
- .probe = mv88e6123_61_65_probe,
- .setup = mv88e6123_61_65_setup,
- .set_addr = mv88e6xxx_set_addr_indirect,
- .phy_read = mv88e6123_61_65_phy_read,
- .phy_write = mv88e6123_61_65_phy_write,
- .poll_link = mv88e6xxx_poll_link,
- .get_strings = mv88e6123_61_65_get_strings,
- .get_ethtool_stats = mv88e6123_61_65_get_ethtool_stats,
- .get_sset_count = mv88e6123_61_65_get_sset_count,
-};
-
-MODULE_ALIAS("platform:mv88e6123");
-MODULE_ALIAS("platform:mv88e6161");
-MODULE_ALIAS("platform:mv88e6165");
projects / ~andy / linux / blobdiff