[linux-2.6-block.git] / drivers / net / dsa / mv88e6131.c

/*
 * 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/delay.h>
#include <linux/jiffies.h>
#include <linux/list.h>
#include <linux/module.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
#define ID_6131_B2	0x1066

static char *mv88e6131_probe(struct device *host_dev, int sw_addr)
{
	struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
	int ret;

	if (bus == NULL)
		return NULL;

	ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), 0x03);
	if (ret >= 0) {
		int ret_masked = ret & 0xfff0;

		if (ret_masked == ID_6085)
			return "Marvell 88E6085";
		if (ret_masked == ID_6095)
			return "Marvell 88E6095/88E6095F";
		if (ret == ID_6131_B2)
			return "Marvell 88E6131 (B2)";
		if (ret_masked == ID_6131)
			return "Marvell 88E6131";
	}

	return NULL;
}

static int mv88e6131_switch_reset(struct dsa_switch *ds)
{
	int i;
	int ret;
	unsigned long timeout;

	/* 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. */
	usleep_range(2000, 4000);

	/* Reset the switch. */
	REG_WRITE(REG_GLOBAL, 0x04, 0xc400);

	/* Wait up to one second for reset to complete. */
	timeout = jiffies + 1 * HZ;
	while (time_before(jiffies, timeout)) {
		ret = REG_READ(REG_GLOBAL, 0x00);
		if ((ret & 0xc800) == 0xc800)
			break;

		usleep_range(1000, 2000);
	}
	if (time_after(jiffies, timeout))
		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 = ds_to_priv(ds);
	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 = ds_to_priv(ds);
	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		= DSA_TAG_PROTO_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");
Commit	Line	Data
2e5f0320	1	/*
076d3e10 LB	2	* net/dsa/mv88e6131.c - Marvell 88e6095/6095f/6131 switch chip support
076d3e10 LB	3	* Copyright (c) 2008-2009 Marvell Semiconductor
2e5f0320 LB	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
19b2f97e BG	11	#include <linux/delay.h>
19b2f97e BG	12	#include <linux/jiffies.h>
2e5f0320	13	#include <linux/list.h>
2bbba277	14	#include <linux/module.h>
2e5f0320 LB	15	#include <linux/netdevice.h>
2e5f0320 LB	16	#include <linux/phy.h>
c8f0b869	17	#include <net/dsa.h>
2e5f0320 LB	18	#include "mv88e6xxx.h"
2e5f0320 LB	19
3675c8d7	20	/* Switch product IDs */
ec80bfcb PK	21	#define ID_6085 0x04a0
	22	#define ID_6095 0x0950
	23	#define ID_6131 0x1060
a93e464a	24	#define ID_6131_B2 0x1066
ec80bfcb	25
b4d2394d	26	static char mv88e6131_probe(struct device host_dev, int sw_addr)
2e5f0320	27	{
b4d2394d	28	struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
2e5f0320 LB	29	int ret;
2e5f0320 LB	30
b4d2394d AD	31	if (bus == NULL)
	32	return NULL;
	33
2e5f0320 LB	34	ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), 0x03);
2e5f0320 LB	35	if (ret >= 0) {
a93e464a GR	36	int ret_masked = ret & 0xfff0;
	37
	38	if (ret_masked == ID_6085)
ec80bfcb	39	return "Marvell 88E6085";
a93e464a	40	if (ret_masked == ID_6095)
076d3e10	41	return "Marvell 88E6095/88E6095F";
a93e464a GR	42	if (ret == ID_6131_B2)
	43	return "Marvell 88E6131 (B2)";
	44	if (ret_masked == ID_6131)
2e5f0320 LB	45	return "Marvell 88E6131";
	46	}
	47
	48	return NULL;
	49	}
	50
	51	static int mv88e6131_switch_reset(struct dsa_switch *ds)
	52	{
	53	int i;
	54	int ret;
19b2f97e	55	unsigned long timeout;
2e5f0320	56
3675c8d7	57	/* Set all ports to the disabled state. */
076d3e10	58	for (i = 0; i < 11; i++) {
2e5f0320 LB	59	ret = REG_READ(REG_PORT(i), 0x04);
	60	REG_WRITE(REG_PORT(i), 0x04, ret & 0xfffc);
	61	}
	62
3675c8d7	63	/* Wait for transmit queues to drain. */
19b2f97e	64	usleep_range(2000, 4000);
2e5f0320	65
3675c8d7	66	/* Reset the switch. */
2e5f0320 LB	67	REG_WRITE(REG_GLOBAL, 0x04, 0xc400);
2e5f0320 LB	68
3675c8d7	69	/* Wait up to one second for reset to complete. */
19b2f97e BG	70	timeout = jiffies + 1 * HZ;
19b2f97e BG	71	while (time_before(jiffies, timeout)) {
2e5f0320 LB	72	ret = REG_READ(REG_GLOBAL, 0x00);
	73	if ((ret & 0xc800) == 0xc800)
	74	break;
	75
19b2f97e	76	usleep_range(1000, 2000);
2e5f0320	77	}
19b2f97e	78	if (time_after(jiffies, timeout))
2e5f0320 LB	79	return -ETIMEDOUT;
	80
	81	return 0;
	82	}
	83
	84	static int mv88e6131_setup_global(struct dsa_switch *ds)
	85	{
	86	int ret;
	87	int i;
	88
3675c8d7	89	/* Enable the PHY polling unit, don't discard packets with
2e5f0320 LB	90	* excessive collisions, use a weighted fair queueing scheme
	91	* to arbitrate between packet queues, set the maximum frame
	92	* size to 1632, and mask all interrupt sources.
	93	*/
	94	REG_WRITE(REG_GLOBAL, 0x04, 0x4400);
	95
3675c8d7	96	/* Set the default address aging time to 5 minutes, and
2e5f0320 LB	97	* enable address learn messages to be sent to all message
	98	* ports.
	99	*/
	100	REG_WRITE(REG_GLOBAL, 0x0a, 0x0148);
	101
3675c8d7	102	/* Configure the priority mapping registers. */
2e5f0320 LB	103	ret = mv88e6xxx_config_prio(ds);
	104	if (ret < 0)
	105	return ret;
	106
3675c8d7	107	/* Set the VLAN ethertype to 0x8100. */
2e5f0320 LB	108	REG_WRITE(REG_GLOBAL, 0x19, 0x8100);
2e5f0320 LB	109
3675c8d7	110	/* Disable ARP mirroring, and configure the upstream port as
e84665c9 LB	111	* the port to which ingress and egress monitor frames are to
e84665c9 LB	112	* be sent.
2e5f0320	113	*/
e84665c9	114	REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1100) \| 0x00f0);
2e5f0320	115
3675c8d7	116	/* Disable cascade port functionality unless this device
81399ec6	117	* is used in a cascade configuration, and set the switch's
e84665c9	118	* DSA device number.
2e5f0320	119	*/
81399ec6 BG	120	if (ds->dst->pd->nr_chips > 1)
	121	REG_WRITE(REG_GLOBAL, 0x1c, 0xf000 \| (ds->index & 0x1f));
	122	else
	123	REG_WRITE(REG_GLOBAL, 0x1c, 0xe000 \| (ds->index & 0x1f));
2e5f0320	124
3675c8d7	125	/* Send all frames with destination addresses matching
2e5f0320 LB	126	* 01:80:c2:00:00:0x to the CPU port.
	127	*/
	128	REG_WRITE(REG_GLOBAL2, 0x03, 0xffff);
	129
3675c8d7	130	/* Ignore removed tag data on doubly tagged packets, disable
2e5f0320 LB	131	* flow control messages, force flow control priority to the
2e5f0320 LB	132	* highest, and send all special multicast frames to the CPU
25985edc	133	* port at the highest priority.
2e5f0320 LB	134	*/
	135	REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
	136
3675c8d7	137	/* Program the DSA routing table. */
e84665c9 LB	138	for (i = 0; i < 32; i++) {
	139	int nexthop;
	140
	141	nexthop = 0x1f;
	142	if (i != ds->index && i < ds->dst->pd->nr_chips)
	143	nexthop = ds->pd->rtable[i] & 0x1f;
	144
	145	REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 \| (i << 8) \| nexthop);
	146	}
2e5f0320	147
3675c8d7	148	/* Clear all trunk masks. */
2e5f0320	149	for (i = 0; i < 8; i++)
076d3e10	150	REG_WRITE(REG_GLOBAL2, 0x07, 0x8000 \| (i << 12) \| 0x7ff);
2e5f0320	151
3675c8d7	152	/* Clear all trunk mappings. */
2e5f0320 LB	153	for (i = 0; i < 16; i++)
	154	REG_WRITE(REG_GLOBAL2, 0x08, 0x8000 \| (i << 11));
	155
3675c8d7	156	/* Force the priority of IGMP/MLD snoop frames and ARP frames
2e5f0320 LB	157	* to the highest setting.
	158	*/
	159	REG_WRITE(REG_GLOBAL2, 0x0f, 0x00ff);
	160
	161	return 0;
	162	}
	163
	164	static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
	165	{
a22adce5	166	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
2e5f0320	167	int addr = REG_PORT(p);
e84665c9	168	u16 val;
2e5f0320	169
3675c8d7	170	/* MAC Forcing register: don't force link, speed, duplex
076d3e10	171	* or flow control state to any particular values on physical
e84665c9	172	* ports, but force the CPU port and all DSA ports to 1000 Mb/s
ec80bfcb	173	* (100 Mb/s on 6085) full duplex.
2e5f0320	174	*/
e84665c9	175	if (dsa_is_cpu_port(ds, p) \|\| ds->dsa_port_mask & (1 << p))
ec80bfcb PK	176	if (ps->id == ID_6085)
	177	REG_WRITE(addr, 0x01, 0x003d); /* 100 Mb/s */
	178	else
	179	REG_WRITE(addr, 0x01, 0x003e); /* 1000 Mb/s */
076d3e10 LB	180	else
076d3e10 LB	181	REG_WRITE(addr, 0x01, 0x0003);
2e5f0320	182
3675c8d7	183	/* Port Control: disable Core Tag, disable Drop-on-Lock,
2e5f0320 LB	184	* transmit frames unmodified, disable Header mode,
	185	* enable IGMP/MLD snoop, disable DoubleTag, disable VLAN
	186	* tunneling, determine priority by looking at 802.1p and
	187	* IP priority fields (IP prio has precedence), and set STP
e84665c9 LB	188	* state to Forwarding.
	189	*
	190	* If this is the upstream port for this switch, enable
	191	* forwarding of unknown unicasts, and enable DSA tagging
	192	* mode.
	193	*
	194	* If this is the link to another switch, use DSA tagging
	195	* mode, but do not enable forwarding of unknown unicasts.
2e5f0320	196	*/
e84665c9	197	val = 0x0433;
b3b27005	198	if (p == dsa_upstream_port(ds)) {
e84665c9	199	val \|= 0x0104;
3675c8d7	200	/* On 6085, unknown multicast forward is controlled
b3b27005 PK	201	* here rather than in Port Control 2 register.
	202	*/
	203	if (ps->id == ID_6085)
	204	val \|= 0x0008;
	205	}
e84665c9 LB	206	if (ds->dsa_port_mask & (1 << p))
	207	val \|= 0x0100;
	208	REG_WRITE(addr, 0x04, val);
2e5f0320	209
3675c8d7	210	/* Port Control 1: disable trunking. Also, if this is the
2e5f0320 LB	211	* CPU port, enable learn messages to be sent to this port.
2e5f0320 LB	212	*/
e84665c9	213	REG_WRITE(addr, 0x05, dsa_is_cpu_port(ds, p) ? 0x8000 : 0x0000);
2e5f0320	214
3675c8d7	215	/* Port based VLAN map: give each port its own address
2e5f0320 LB	216	* database, allow the CPU port to talk to each of the 'real'
2e5f0320 LB	217	* ports, and allow each of the 'real' ports to only talk to
e84665c9	218	* the upstream port.
2e5f0320	219	*/
e84665c9 LB	220	val = (p & 0xf) << 12;
	221	if (dsa_is_cpu_port(ds, p))
	222	val \|= ds->phys_port_mask;
	223	else
	224	val \|= 1 << dsa_upstream_port(ds);
	225	REG_WRITE(addr, 0x06, val);
2e5f0320	226
3675c8d7	227	/* Default VLAN ID and priority: don't set a default VLAN
2e5f0320 LB	228	* ID, and set the default packet priority to zero.
	229	*/
	230	REG_WRITE(addr, 0x07, 0x0000);
	231
3675c8d7	232	/* Port Control 2: don't force a good FCS, don't use
2e5f0320 LB	233	* VLAN-based, source address-based or destination
	234	* address-based priority overrides, don't let the switch
	235	* add or strip 802.1q tags, don't discard tagged or
	236	* untagged frames on this port, do a destination address
	237	* lookup on received packets as usual, don't send a copy
	238	* of all transmitted/received frames on this port to the
e84665c9 LB	239	* CPU, and configure the upstream port number.
	240	*
	241	* If this is the upstream port for this switch, enable
	242	* forwarding of unknown multicast addresses.
2e5f0320	243	*/
b3b27005	244	if (ps->id == ID_6085)
3675c8d7	245	/* on 6085, bits 3:0 are reserved, bit 6 control ARP
b3b27005 PK	246	* mirroring, and multicast forward is handled in
	247	* Port Control register.
	248	*/
	249	REG_WRITE(addr, 0x08, 0x0080);
	250	else {
	251	val = 0x0080 \| dsa_upstream_port(ds);
	252	if (p == dsa_upstream_port(ds))
	253	val \|= 0x0040;
	254	REG_WRITE(addr, 0x08, val);
	255	}
2e5f0320	256
3675c8d7	257	/* Rate Control: disable ingress rate limiting. */
2e5f0320 LB	258	REG_WRITE(addr, 0x09, 0x0000);
2e5f0320 LB	259
3675c8d7	260	/* Rate Control 2: disable egress rate limiting. */
2e5f0320 LB	261	REG_WRITE(addr, 0x0a, 0x0000);
2e5f0320 LB	262
3675c8d7	263	/* Port Association Vector: when learning source addresses
2e5f0320 LB	264	* of packets, add the address to the address database using
	265	* a port bitmap that has only the bit for this port set and
	266	* the other bits clear.
	267	*/
	268	REG_WRITE(addr, 0x0b, 1 << p);
	269
3675c8d7	270	/* Tag Remap: use an identity 802.1p prio -> switch prio
2e5f0320 LB	271	* mapping.
	272	*/
	273	REG_WRITE(addr, 0x18, 0x3210);
	274
3675c8d7	275	/* Tag Remap 2: use an identity 802.1p prio -> switch prio
2e5f0320 LB	276	* mapping.
	277	*/
	278	REG_WRITE(addr, 0x19, 0x7654);
	279
	280	return 0;
	281	}
	282
	283	static int mv88e6131_setup(struct dsa_switch *ds)
	284	{
a22adce5	285	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
2e5f0320 LB	286	int i;
	287	int ret;
	288
	289	mutex_init(&ps->smi_mutex);
	290	mv88e6xxx_ppu_state_init(ds);
	291	mutex_init(&ps->stats_mutex);
	292
ec80bfcb PK	293	ps->id = REG_READ(REG_PORT(0), 0x03) & 0xfff0;
ec80bfcb PK	294
2e5f0320 LB	295	ret = mv88e6131_switch_reset(ds);
	296	if (ret < 0)
	297	return ret;
	298
	299	/* @@@ initialise vtu and atu */
	300
	301	ret = mv88e6131_setup_global(ds);
	302	if (ret < 0)
	303	return ret;
	304
076d3e10	305	for (i = 0; i < 11; i++) {
2e5f0320 LB	306	ret = mv88e6131_setup_port(ds, i);
	307	if (ret < 0)
	308	return ret;
	309	}
	310
	311	return 0;
	312	}
	313
	314	static int mv88e6131_port_to_phy_addr(int port)
	315	{
076d3e10	316	if (port >= 0 && port <= 11)
2e5f0320 LB	317	return port;
	318	return -1;
	319	}
	320
	321	static int
	322	mv88e6131_phy_read(struct dsa_switch *ds, int port, int regnum)
	323	{
	324	int addr = mv88e6131_port_to_phy_addr(port);
	325	return mv88e6xxx_phy_read_ppu(ds, addr, regnum);
	326	}
	327
	328	static int
	329	mv88e6131_phy_write(struct dsa_switch *ds,
	330	int port, int regnum, u16 val)
	331	{
	332	int addr = mv88e6131_port_to_phy_addr(port);
	333	return mv88e6xxx_phy_write_ppu(ds, addr, regnum, val);
	334	}
	335
	336	static struct mv88e6xxx_hw_stat mv88e6131_hw_stats[] = {
	337	{ "in_good_octets", 8, 0x00, },
	338	{ "in_bad_octets", 4, 0x02, },
	339	{ "in_unicast", 4, 0x04, },
	340	{ "in_broadcasts", 4, 0x06, },
	341	{ "in_multicasts", 4, 0x07, },
	342	{ "in_pause", 4, 0x16, },
	343	{ "in_undersize", 4, 0x18, },
	344	{ "in_fragments", 4, 0x19, },
	345	{ "in_oversize", 4, 0x1a, },
	346	{ "in_jabber", 4, 0x1b, },
	347	{ "in_rx_error", 4, 0x1c, },
	348	{ "in_fcs_error", 4, 0x1d, },
	349	{ "out_octets", 8, 0x0e, },
	350	{ "out_unicast", 4, 0x10, },
	351	{ "out_broadcasts", 4, 0x13, },
	352	{ "out_multicasts", 4, 0x12, },
	353	{ "out_pause", 4, 0x15, },
	354	{ "excessive", 4, 0x11, },
	355	{ "collisions", 4, 0x1e, },
	356	{ "deferred", 4, 0x05, },
	357	{ "single", 4, 0x14, },
	358	{ "multiple", 4, 0x17, },
	359	{ "out_fcs_error", 4, 0x03, },
	360	{ "late", 4, 0x1f, },
	361	{ "hist_64bytes", 4, 0x08, },
	362	{ "hist_65_127bytes", 4, 0x09, },
	363	{ "hist_128_255bytes", 4, 0x0a, },
	364	{ "hist_256_511bytes", 4, 0x0b, },
	365	{ "hist_512_1023bytes", 4, 0x0c, },
	366	{ "hist_1024_max_bytes", 4, 0x0d, },
	367	};
	368
	369	static void
	370	mv88e6131_get_strings(struct dsa_switch ds, int port, uint8_t data)
	371	{
	372	mv88e6xxx_get_strings(ds, ARRAY_SIZE(mv88e6131_hw_stats),
	373	mv88e6131_hw_stats, port, data);
	374	}
	375
	376	static void
	377	mv88e6131_get_ethtool_stats(struct dsa_switch *ds,
	378	int port, uint64_t *data)
	379	{
	380	mv88e6xxx_get_ethtool_stats(ds, ARRAY_SIZE(mv88e6131_hw_stats),
381	mv88e6131_hw_stats, port, data);
382	}
383
384	static int mv88e6131_get_sset_count(struct dsa_switch *ds)
385	{
386	return ARRAY_SIZE(mv88e6131_hw_stats);
387	}
388
98e67308	389	struct dsa_switch_driver mv88e6131_switch_driver = {
ac7a04c3	390	.tag_protocol = DSA_TAG_PROTO_DSA,
2e5f0320 LB	391	.priv_size = sizeof(struct mv88e6xxx_priv_state),
	392	.probe = mv88e6131_probe,
	393	.setup = mv88e6131_setup,
	394	.set_addr = mv88e6xxx_set_addr_direct,
	395	.phy_read = mv88e6131_phy_read,
	396	.phy_write = mv88e6131_phy_write,
	397	.poll_link = mv88e6xxx_poll_link,
	398	.get_strings = mv88e6131_get_strings,
	399	.get_ethtool_stats = mv88e6131_get_ethtool_stats,
	400	.get_sset_count = mv88e6131_get_sset_count,
	401	};
3d825ede BH	402
	403	MODULE_ALIAS("platform:mv88e6085");
	404	MODULE_ALIAS("platform:mv88e6095");
	405	MODULE_ALIAS("platform:mv88e6095f");
	406	MODULE_ALIAS("platform:mv88e6131");