Commit 17c790a6 authored by David S. Miller's avatar David S. Miller

Merge branch 'mv88e6060-fixes'

Neil Armstrong says:

====================
net: dsa: mv88e6060: cleanup and fix setup

This patchset introduces some fixes and a registers addressing cleanup for
the mv88e6060 DSA driver.

The first patch removes the poll_link as mv88e6xxx.
The 3 following patches fixes the setup in regards of the datasheet.
The 2 last patches introduces a clean header and replaces all magic values.

v2: cleanup InitReady patch, add missing Acked-by and fix header copyright notice
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 8863002c 6a4b2980
......@@ -15,9 +15,7 @@
#include <linux/netdevice.h>
#include <linux/phy.h>
#include <net/dsa.h>
#define REG_PORT(p) (8 + (p))
#define REG_GLOBAL 0x0f
#include "mv88e6060.h"
static int reg_read(struct dsa_switch *ds, int addr, int reg)
{
......@@ -67,13 +65,14 @@ static char *mv88e6060_probe(struct device *host_dev, int sw_addr)
if (bus == NULL)
return NULL;
ret = mdiobus_read(bus, sw_addr + REG_PORT(0), 0x03);
ret = mdiobus_read(bus, sw_addr + REG_PORT(0), PORT_SWITCH_ID);
if (ret >= 0) {
if (ret == 0x0600)
if (ret == PORT_SWITCH_ID_6060)
return "Marvell 88E6060 (A0)";
if (ret == 0x0601 || ret == 0x0602)
if (ret == PORT_SWITCH_ID_6060_R1 ||
ret == PORT_SWITCH_ID_6060_R2)
return "Marvell 88E6060 (B0)";
if ((ret & 0xfff0) == 0x0600)
if ((ret & PORT_SWITCH_ID_6060_MASK) == PORT_SWITCH_ID_6060)
return "Marvell 88E6060";
}
......@@ -87,22 +86,26 @@ static int mv88e6060_switch_reset(struct dsa_switch *ds)
unsigned long timeout;
/* Set all ports to the disabled state. */
for (i = 0; i < 6; i++) {
ret = REG_READ(REG_PORT(i), 0x04);
REG_WRITE(REG_PORT(i), 0x04, ret & 0xfffc);
for (i = 0; i < MV88E6060_PORTS; i++) {
ret = REG_READ(REG_PORT(i), PORT_CONTROL);
REG_WRITE(REG_PORT(i), PORT_CONTROL,
ret & ~PORT_CONTROL_STATE_MASK);
}
/* Wait for transmit queues to drain. */
usleep_range(2000, 4000);
/* Reset the switch. */
REG_WRITE(REG_GLOBAL, 0x0a, 0xa130);
REG_WRITE(REG_GLOBAL, GLOBAL_ATU_CONTROL,
GLOBAL_ATU_CONTROL_SWRESET |
GLOBAL_ATU_CONTROL_ATUSIZE_1024 |
GLOBAL_ATU_CONTROL_ATE_AGE_5MIN);
/* 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 & 0x8000) == 0x0000)
ret = REG_READ(REG_GLOBAL, GLOBAL_STATUS);
if (ret & GLOBAL_STATUS_INIT_READY)
break;
usleep_range(1000, 2000);
......@@ -119,13 +122,15 @@ static int mv88e6060_setup_global(struct dsa_switch *ds)
* set the maximum frame size to 1536 bytes, and mask all
* interrupt sources.
*/
REG_WRITE(REG_GLOBAL, 0x04, 0x0800);
REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL, GLOBAL_CONTROL_MAX_FRAME_1536);
/* Enable automatic address learning, set the address
* database size to 1024 entries, and set the default aging
* time to 5 minutes.
*/
REG_WRITE(REG_GLOBAL, 0x0a, 0x2130);
REG_WRITE(REG_GLOBAL, GLOBAL_ATU_CONTROL,
GLOBAL_ATU_CONTROL_ATUSIZE_1024 |
GLOBAL_ATU_CONTROL_ATE_AGE_5MIN);
return 0;
}
......@@ -139,25 +144,30 @@ static int mv88e6060_setup_port(struct dsa_switch *ds, int p)
* state to Forwarding. Additionally, if this is the CPU
* port, enable Ingress and Egress Trailer tagging mode.
*/
REG_WRITE(addr, 0x04, dsa_is_cpu_port(ds, p) ? 0x4103 : 0x0003);
REG_WRITE(addr, PORT_CONTROL,
dsa_is_cpu_port(ds, p) ?
PORT_CONTROL_TRAILER |
PORT_CONTROL_INGRESS_MODE |
PORT_CONTROL_STATE_FORWARDING :
PORT_CONTROL_STATE_FORWARDING);
/* 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 CPU port.
*/
REG_WRITE(addr, 0x06,
((p & 0xf) << 12) |
(dsa_is_cpu_port(ds, p) ?
ds->phys_port_mask :
(1 << ds->dst->cpu_port)));
REG_WRITE(addr, PORT_VLAN_MAP,
((p & 0xf) << PORT_VLAN_MAP_DBNUM_SHIFT) |
(dsa_is_cpu_port(ds, p) ?
ds->phys_port_mask :
BIT(ds->dst->cpu_port)));
/* 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);
REG_WRITE(addr, PORT_ASSOC_VECTOR, BIT(p));
return 0;
}
......@@ -177,7 +187,7 @@ static int mv88e6060_setup(struct dsa_switch *ds)
if (ret < 0)
return ret;
for (i = 0; i < 6; i++) {
for (i = 0; i < MV88E6060_PORTS; i++) {
ret = mv88e6060_setup_port(ds, i);
if (ret < 0)
return ret;
......@@ -188,16 +198,17 @@ static int mv88e6060_setup(struct dsa_switch *ds)
static int mv88e6060_set_addr(struct dsa_switch *ds, u8 *addr)
{
REG_WRITE(REG_GLOBAL, 0x01, (addr[0] << 8) | addr[1]);
REG_WRITE(REG_GLOBAL, 0x02, (addr[2] << 8) | addr[3]);
REG_WRITE(REG_GLOBAL, 0x03, (addr[4] << 8) | addr[5]);
/* Use the same MAC Address as FD Pause frames for all ports */
REG_WRITE(REG_GLOBAL, GLOBAL_MAC_01, (addr[0] << 9) | addr[1]);
REG_WRITE(REG_GLOBAL, GLOBAL_MAC_23, (addr[2] << 8) | addr[3]);
REG_WRITE(REG_GLOBAL, GLOBAL_MAC_45, (addr[4] << 8) | addr[5]);
return 0;
}
static int mv88e6060_port_to_phy_addr(int port)
{
if (port >= 0 && port <= 5)
if (port >= 0 && port < MV88E6060_PORTS)
return port;
return -1;
}
......@@ -225,54 +236,6 @@ mv88e6060_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val)
return reg_write(ds, addr, regnum, val);
}
static void mv88e6060_poll_link(struct dsa_switch *ds)
{
int i;
for (i = 0; i < DSA_MAX_PORTS; i++) {
struct net_device *dev;
int uninitialized_var(port_status);
int link;
int speed;
int duplex;
int fc;
dev = ds->ports[i];
if (dev == NULL)
continue;
link = 0;
if (dev->flags & IFF_UP) {
port_status = reg_read(ds, REG_PORT(i), 0x00);
if (port_status < 0)
continue;
link = !!(port_status & 0x1000);
}
if (!link) {
if (netif_carrier_ok(dev)) {
netdev_info(dev, "link down\n");
netif_carrier_off(dev);
}
continue;
}
speed = (port_status & 0x0100) ? 100 : 10;
duplex = (port_status & 0x0200) ? 1 : 0;
fc = ((port_status & 0xc000) == 0xc000) ? 1 : 0;
if (!netif_carrier_ok(dev)) {
netdev_info(dev,
"link up, %d Mb/s, %s duplex, flow control %sabled\n",
speed,
duplex ? "full" : "half",
fc ? "en" : "dis");
netif_carrier_on(dev);
}
}
}
static struct dsa_switch_driver mv88e6060_switch_driver = {
.tag_protocol = DSA_TAG_PROTO_TRAILER,
.probe = mv88e6060_probe,
......@@ -280,7 +243,6 @@ static struct dsa_switch_driver mv88e6060_switch_driver = {
.set_addr = mv88e6060_set_addr,
.phy_read = mv88e6060_phy_read,
.phy_write = mv88e6060_phy_write,
.poll_link = mv88e6060_poll_link,
};
static int __init mv88e6060_init(void)
......
/*
* drivers/net/dsa/mv88e6060.h - Marvell 88e6060 switch chip support
* Copyright (c) 2015 Neil Armstrong
*
* Based on mv88e6xxx.h
* Copyright (c) 2008 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.
*/
#ifndef __MV88E6060_H
#define __MV88E6060_H
#define MV88E6060_PORTS 6
#define REG_PORT(p) (0x8 + (p))
#define PORT_STATUS 0x00
#define PORT_STATUS_PAUSE_EN BIT(15)
#define PORT_STATUS_MY_PAUSE BIT(14)
#define PORT_STATUS_FC (PORT_STATUS_MY_PAUSE | PORT_STATUS_PAUSE_EN)
#define PORT_STATUS_RESOLVED BIT(13)
#define PORT_STATUS_LINK BIT(12)
#define PORT_STATUS_PORTMODE BIT(11)
#define PORT_STATUS_PHYMODE BIT(10)
#define PORT_STATUS_DUPLEX BIT(9)
#define PORT_STATUS_SPEED BIT(8)
#define PORT_SWITCH_ID 0x03
#define PORT_SWITCH_ID_6060 0x0600
#define PORT_SWITCH_ID_6060_MASK 0xfff0
#define PORT_SWITCH_ID_6060_R1 0x0601
#define PORT_SWITCH_ID_6060_R2 0x0602
#define PORT_CONTROL 0x04
#define PORT_CONTROL_FORCE_FLOW_CTRL BIT(15)
#define PORT_CONTROL_TRAILER BIT(14)
#define PORT_CONTROL_HEADER BIT(11)
#define PORT_CONTROL_INGRESS_MODE BIT(8)
#define PORT_CONTROL_VLAN_TUNNEL BIT(7)
#define PORT_CONTROL_STATE_MASK 0x03
#define PORT_CONTROL_STATE_DISABLED 0x00
#define PORT_CONTROL_STATE_BLOCKING 0x01
#define PORT_CONTROL_STATE_LEARNING 0x02
#define PORT_CONTROL_STATE_FORWARDING 0x03
#define PORT_VLAN_MAP 0x06
#define PORT_VLAN_MAP_DBNUM_SHIFT 12
#define PORT_VLAN_MAP_TABLE_MASK 0x1f
#define PORT_ASSOC_VECTOR 0x0b
#define PORT_ASSOC_VECTOR_MONITOR BIT(15)
#define PORT_ASSOC_VECTOR_PAV_MASK 0x1f
#define PORT_RX_CNTR 0x10
#define PORT_TX_CNTR 0x11
#define REG_GLOBAL 0x0f
#define GLOBAL_STATUS 0x00
#define GLOBAL_STATUS_SW_MODE_MASK (0x3 << 12)
#define GLOBAL_STATUS_SW_MODE_0 (0x0 << 12)
#define GLOBAL_STATUS_SW_MODE_1 (0x1 << 12)
#define GLOBAL_STATUS_SW_MODE_2 (0x2 << 12)
#define GLOBAL_STATUS_SW_MODE_3 (0x3 << 12)
#define GLOBAL_STATUS_INIT_READY BIT(11)
#define GLOBAL_STATUS_ATU_FULL BIT(3)
#define GLOBAL_STATUS_ATU_DONE BIT(2)
#define GLOBAL_STATUS_PHY_INT BIT(1)
#define GLOBAL_STATUS_EEINT BIT(0)
#define GLOBAL_MAC_01 0x01
#define GLOBAL_MAC_01_DIFF_ADDR BIT(8)
#define GLOBAL_MAC_23 0x02
#define GLOBAL_MAC_45 0x03
#define GLOBAL_CONTROL 0x04
#define GLOBAL_CONTROL_DISCARD_EXCESS BIT(13)
#define GLOBAL_CONTROL_MAX_FRAME_1536 BIT(10)
#define GLOBAL_CONTROL_RELOAD_EEPROM BIT(9)
#define GLOBAL_CONTROL_CTRMODE BIT(8)
#define GLOBAL_CONTROL_ATU_FULL_EN BIT(3)
#define GLOBAL_CONTROL_ATU_DONE_EN BIT(2)
#define GLOBAL_CONTROL_PHYINT_EN BIT(1)
#define GLOBAL_CONTROL_EEPROM_DONE_EN BIT(0)
#define GLOBAL_ATU_CONTROL 0x0a
#define GLOBAL_ATU_CONTROL_SWRESET BIT(15)
#define GLOBAL_ATU_CONTROL_LEARNDIS BIT(14)
#define GLOBAL_ATU_CONTROL_ATUSIZE_256 (0x0 << 12)
#define GLOBAL_ATU_CONTROL_ATUSIZE_512 (0x1 << 12)
#define GLOBAL_ATU_CONTROL_ATUSIZE_1024 (0x2 << 12)
#define GLOBAL_ATU_CONTROL_ATE_AGE_SHIFT 4
#define GLOBAL_ATU_CONTROL_ATE_AGE_MASK (0xff << 4)
#define GLOBAL_ATU_CONTROL_ATE_AGE_5MIN (0x13 << 4)
#define GLOBAL_ATU_OP 0x0b
#define GLOBAL_ATU_OP_BUSY BIT(15)
#define GLOBAL_ATU_OP_NOP (0 << 12)
#define GLOBAL_ATU_OP_FLUSH_ALL ((1 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_FLUSH_UNLOCKED ((2 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_LOAD_DB ((3 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_GET_NEXT_DB ((4 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_FLUSH_DB ((5 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_FLUSH_UNLOCKED_DB ((6 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_DATA 0x0c
#define GLOBAL_ATU_DATA_PORT_VECTOR_MASK 0x3f0
#define GLOBAL_ATU_DATA_PORT_VECTOR_SHIFT 4
#define GLOBAL_ATU_DATA_STATE_MASK 0x0f
#define GLOBAL_ATU_DATA_STATE_UNUSED 0x00
#define GLOBAL_ATU_DATA_STATE_UC_STATIC 0x0e
#define GLOBAL_ATU_DATA_STATE_UC_LOCKED 0x0f
#define GLOBAL_ATU_DATA_STATE_MC_STATIC 0x07
#define GLOBAL_ATU_DATA_STATE_MC_LOCKED 0x0e
#define GLOBAL_ATU_MAC_01 0x0d
#define GLOBAL_ATU_MAC_23 0x0e
#define GLOBAL_ATU_MAC_45 0x0f
#endif
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