diff options
Diffstat (limited to 'net/dsa/mv88e6131.c')
| -rw-r--r-- | net/dsa/mv88e6131.c | 435 |
1 files changed, 0 insertions, 435 deletions
diff --git a/net/dsa/mv88e6131.c b/net/dsa/mv88e6131.c deleted file mode 100644 index e0eb6824..0000000 --- a/net/dsa/mv88e6131.c +++ /dev/null @@ -1,435 +0,0 @@ -/* - * net/dsa/mv88e6131.c - Marvell 88e6095/6095f/6131 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" - -/* - * Switch product IDs - */ -#define ID_6085 0x04a0 -#define ID_6095 0x0950 -#define ID_6131 0x1060 - -static char *mv88e6131_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 == ID_6085) - return "Marvell 88E6085"; - if (ret == ID_6095) - return "Marvell 88E6095/88E6095F"; - if (ret == ID_6131) - return "Marvell 88E6131"; - } - - return NULL; -} - -static int mv88e6131_switch_reset(struct dsa_switch *ds) -{ - int i; - int ret; - - /* - * Set all ports to the disabled state. - */ - for (i = 0; i < 11; 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 mv88e6131_setup_global(struct dsa_switch *ds) -{ - int ret; - int i; - - /* - * Enable the PHY polling unit, don't discard packets with - * excessive collisions, use a weighted fair queueing scheme - * to arbitrate between packet queues, set the maximum frame - * size to 1632, and mask all interrupt sources. - */ - REG_WRITE(REG_GLOBAL, 0x04, 0x4400); - - /* - * 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; - - /* - * Set the VLAN ethertype to 0x8100. - */ - REG_WRITE(REG_GLOBAL, 0x19, 0x8100); - - /* - * Disable ARP mirroring, 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) * 0x1100) | 0x00f0); - - /* - * Disable cascade port functionality unless this device - * is used in a cascade configuration, and set the switch's - * DSA device number. - */ - if (ds->dst->pd->nr_chips > 1) - REG_WRITE(REG_GLOBAL, 0x1c, 0xf000 | (ds->index & 0x1f)); - else - REG_WRITE(REG_GLOBAL, 0x1c, 0xe000 | (ds->index & 0x1f)); - - /* - * Send all frames with destination addresses matching - * 01:80:c2:00:00:0x to the CPU port. - */ - REG_WRITE(REG_GLOBAL2, 0x03, 0xffff); - - /* - * Ignore removed tag data on doubly tagged packets, disable - * flow control messages, force flow control priority to the - * highest, and send all special multicast frames to the CPU - * port 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) | 0x7ff); - - /* - * Clear all trunk mappings. - */ - for (i = 0; i < 16; i++) - REG_WRITE(REG_GLOBAL2, 0x08, 0x8000 | (i << 11)); - - /* - * Force the priority of IGMP/MLD snoop frames and ARP frames - * to the highest setting. - */ - REG_WRITE(REG_GLOBAL2, 0x0f, 0x00ff); - - return 0; -} - -static int mv88e6131_setup_port(struct dsa_switch *ds, int p) -{ - struct mv88e6xxx_priv_state *ps = (void *)(ds + 1); - 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 - * (100 Mb/s on 6085) full duplex. - */ - if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p)) - if (ps->id == ID_6085) - REG_WRITE(addr, 0x01, 0x003d); /* 100 Mb/s */ - else - REG_WRITE(addr, 0x01, 0x003e); /* 1000 Mb/s */ - else - REG_WRITE(addr, 0x01, 0x0003); - - /* - * Port Control: disable Core Tag, disable Drop-on-Lock, - * transmit frames unmodified, disable Header mode, - * enable IGMP/MLD snoop, disable DoubleTag, 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 upstream port for this switch, enable - * forwarding of unknown unicasts, and enable DSA tagging - * mode. - * - * If this is the link to another switch, use DSA tagging - * mode, but do not enable forwarding of unknown unicasts. - */ - val = 0x0433; - if (p == dsa_upstream_port(ds)) { - val |= 0x0104; - /* - * On 6085, unknown multicast forward is controlled - * here rather than in Port Control 2 register. - */ - if (ps->id == ID_6085) - val |= 0x0008; - } - if (ds->dsa_port_mask & (1 << p)) - val |= 0x0100; - 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, don't use - * VLAN-based, source address-based or destination - * address-based priority overrides, 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 received packets as usual, don't send a copy - * of all transmitted/received frames on this port to the - * CPU, and configure the upstream port number. - * - * If this is the upstream port for this switch, enable - * forwarding of unknown multicast addresses. - */ - if (ps->id == ID_6085) - /* - * on 6085, bits 3:0 are reserved, bit 6 control ARP - * mirroring, and multicast forward is handled in - * Port Control register. - */ - REG_WRITE(addr, 0x08, 0x0080); - else { - val = 0x0080 | dsa_upstream_port(ds); - if (p == dsa_upstream_port(ds)) - val |= 0x0040; - REG_WRITE(addr, 0x08, val); - } - - /* - * Rate Control: disable ingress rate limiting. - */ - REG_WRITE(addr, 0x09, 0x0000); - - /* - * Rate Control 2: disable egress rate limiting. - */ - 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); - - /* - * 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 mv88e6131_setup(struct dsa_switch *ds) -{ - struct mv88e6xxx_priv_state *ps = (void *)(ds + 1); - int i; - int ret; - - mutex_init(&ps->smi_mutex); - mv88e6xxx_ppu_state_init(ds); - mutex_init(&ps->stats_mutex); - - ps->id = REG_READ(REG_PORT(0), 0x03) & 0xfff0; - - ret = mv88e6131_switch_reset(ds); - if (ret < 0) - return ret; - - /* @@@ initialise vtu and atu */ - - ret = mv88e6131_setup_global(ds); - if (ret < 0) - return ret; - - for (i = 0; i < 11; i++) { - ret = mv88e6131_setup_port(ds, i); - if (ret < 0) - return ret; - } - - return 0; -} - -static int mv88e6131_port_to_phy_addr(int port) -{ - if (port >= 0 && port <= 11) - return port; - return -1; -} - -static int -mv88e6131_phy_read(struct dsa_switch *ds, int port, int regnum) -{ - int addr = mv88e6131_port_to_phy_addr(port); - return mv88e6xxx_phy_read_ppu(ds, addr, regnum); -} - -static int -mv88e6131_phy_write(struct dsa_switch *ds, - int port, int regnum, u16 val) -{ - int addr = mv88e6131_port_to_phy_addr(port); - return mv88e6xxx_phy_write_ppu(ds, addr, regnum, val); -} - -static struct mv88e6xxx_hw_stat mv88e6131_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 -mv88e6131_get_strings(struct dsa_switch *ds, int port, uint8_t *data) -{ - mv88e6xxx_get_strings(ds, ARRAY_SIZE(mv88e6131_hw_stats), - mv88e6131_hw_stats, port, data); -} - -static void -mv88e6131_get_ethtool_stats(struct dsa_switch *ds, - int port, uint64_t *data) -{ - mv88e6xxx_get_ethtool_stats(ds, ARRAY_SIZE(mv88e6131_hw_stats), - mv88e6131_hw_stats, port, data); -} - -static int mv88e6131_get_sset_count(struct dsa_switch *ds) -{ - return ARRAY_SIZE(mv88e6131_hw_stats); -} - -struct dsa_switch_driver mv88e6131_switch_driver = { - .tag_protocol = cpu_to_be16(ETH_P_DSA), - .priv_size = sizeof(struct mv88e6xxx_priv_state), - .probe = mv88e6131_probe, - .setup = mv88e6131_setup, - .set_addr = mv88e6xxx_set_addr_direct, - .phy_read = mv88e6131_phy_read, - .phy_write = mv88e6131_phy_write, - .poll_link = mv88e6xxx_poll_link, - .get_strings = mv88e6131_get_strings, - .get_ethtool_stats = mv88e6131_get_ethtool_stats, - .get_sset_count = mv88e6131_get_sset_count, -}; - -MODULE_ALIAS("platform:mv88e6085"); -MODULE_ALIAS("platform:mv88e6095"); -MODULE_ALIAS("platform:mv88e6095f"); -MODULE_ALIAS("platform:mv88e6131"); |