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-rw-r--r--drivers/net/dsa/Kconfig39
-rw-r--r--drivers/net/dsa/Makefile9
-rw-r--r--drivers/net/dsa/mv88e6060.c286
-rw-r--r--drivers/net/dsa/mv88e6123_61_65.c409
-rw-r--r--drivers/net/dsa/mv88e6131.c398
-rw-r--r--drivers/net/dsa/mv88e6xxx.c521
-rw-r--r--drivers/net/dsa/mv88e6xxx.h95
7 files changed, 1757 insertions, 0 deletions
diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
new file mode 100644
index 00000000000..b8fe808b795
--- /dev/null
+++ b/drivers/net/dsa/Kconfig
@@ -0,0 +1,39 @@
+menu "Distributed Switch Architecture drivers"
+ depends on HAVE_NET_DSA
+
+config NET_DSA_MV88E6XXX
+ tristate
+ default n
+
+config NET_DSA_MV88E6060
+ tristate "Marvell 88E6060 ethernet switch chip support"
+ select NET_DSA
+ select NET_DSA_TAG_TRAILER
+ ---help---
+ This enables support for the Marvell 88E6060 ethernet switch
+ chip.
+
+config NET_DSA_MV88E6XXX_NEED_PPU
+ bool
+ default n
+
+config NET_DSA_MV88E6131
+ tristate "Marvell 88E6085/6095/6095F/6131 ethernet switch chip support"
+ select NET_DSA
+ select NET_DSA_MV88E6XXX
+ select NET_DSA_MV88E6XXX_NEED_PPU
+ select NET_DSA_TAG_DSA
+ ---help---
+ This enables support for the Marvell 88E6085/6095/6095F/6131
+ ethernet switch chips.
+
+config NET_DSA_MV88E6123_61_65
+ tristate "Marvell 88E6123/6161/6165 ethernet switch chip support"
+ select NET_DSA
+ select NET_DSA_MV88E6XXX
+ select NET_DSA_TAG_EDSA
+ ---help---
+ This enables support for the Marvell 88E6123/6161/6165
+ ethernet switch chips.
+
+endmenu
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
new file mode 100644
index 00000000000..f3bda05536c
--- /dev/null
+++ b/drivers/net/dsa/Makefile
@@ -0,0 +1,9 @@
+obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o
+obj-$(CONFIG_NET_DSA_MV88E6XXX) += mv88e6xxx_drv.o
+mv88e6xxx_drv-y += mv88e6xxx.o
+ifdef CONFIG_NET_DSA_MV88E6123_61_65
+mv88e6xxx_drv-y += mv88e6123_61_65.o
+endif
+ifdef CONFIG_NET_DSA_MV88E6131
+mv88e6xxx_drv-y += mv88e6131.o
+endif
diff --git a/drivers/net/dsa/mv88e6060.c b/drivers/net/dsa/mv88e6060.c
new file mode 100644
index 00000000000..7a54ec04b41
--- /dev/null
+++ b/drivers/net/dsa/mv88e6060.c
@@ -0,0 +1,286 @@
+/*
+ * net/dsa/mv88e6060.c - Driver for Marvell 88e6060 switch chips
+ * 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>
+
+#define REG_PORT(p) (8 + (p))
+#define REG_GLOBAL 0x0f
+
+static int reg_read(struct dsa_switch *ds, int addr, int reg)
+{
+ return mdiobus_read(ds->master_mii_bus, ds->pd->sw_addr + addr, reg);
+}
+
+#define REG_READ(addr, reg) \
+ ({ \
+ int __ret; \
+ \
+ __ret = reg_read(ds, addr, reg); \
+ if (__ret < 0) \
+ return __ret; \
+ __ret; \
+ })
+
+
+static int reg_write(struct dsa_switch *ds, int addr, int reg, u16 val)
+{
+ return mdiobus_write(ds->master_mii_bus, ds->pd->sw_addr + addr,
+ reg, val);
+}
+
+#define REG_WRITE(addr, reg, val) \
+ ({ \
+ int __ret; \
+ \
+ __ret = reg_write(ds, addr, reg, val); \
+ if (__ret < 0) \
+ return __ret; \
+ })
+
+static char *mv88e6060_probe(struct mii_bus *bus, int sw_addr)
+{
+ int ret;
+
+ ret = mdiobus_read(bus, sw_addr + REG_PORT(0), 0x03);
+ if (ret >= 0) {
+ ret &= 0xfff0;
+ if (ret == 0x0600)
+ return "Marvell 88E6060";
+ }
+
+ return NULL;
+}
+
+static int mv88e6060_switch_reset(struct dsa_switch *ds)
+{
+ int i;
+ int ret;
+ 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);
+ }
+
+ /* Wait for transmit queues to drain. */
+ usleep_range(2000, 4000);
+
+ /* Reset the switch. */
+ REG_WRITE(REG_GLOBAL, 0x0a, 0xa130);
+
+ /* 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)
+ break;
+
+ usleep_range(1000, 2000);
+ }
+ if (time_after(jiffies, timeout))
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int mv88e6060_setup_global(struct dsa_switch *ds)
+{
+ /* Disable discarding of frames with excessive collisions,
+ * set the maximum frame size to 1536 bytes, and mask all
+ * interrupt sources.
+ */
+ REG_WRITE(REG_GLOBAL, 0x04, 0x0800);
+
+ /* 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);
+
+ return 0;
+}
+
+static int mv88e6060_setup_port(struct dsa_switch *ds, int p)
+{
+ int addr = REG_PORT(p);
+
+ /* Do not force flow control, disable Ingress and Egress
+ * Header tagging, disable VLAN tunneling, and set the port
+ * 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);
+
+ /* 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)));
+
+ /* 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);
+
+ return 0;
+}
+
+static int mv88e6060_setup(struct dsa_switch *ds)
+{
+ int i;
+ int ret;
+
+ ret = mv88e6060_switch_reset(ds);
+ if (ret < 0)
+ return ret;
+
+ /* @@@ initialise atu */
+
+ ret = mv88e6060_setup_global(ds);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; i < 6; i++) {
+ ret = mv88e6060_setup_port(ds, i);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+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]);
+
+ return 0;
+}
+
+static int mv88e6060_port_to_phy_addr(int port)
+{
+ if (port >= 0 && port <= 5)
+ return port;
+ return -1;
+}
+
+static int mv88e6060_phy_read(struct dsa_switch *ds, int port, int regnum)
+{
+ int addr;
+
+ addr = mv88e6060_port_to_phy_addr(port);
+ if (addr == -1)
+ return 0xffff;
+
+ return reg_read(ds, addr, regnum);
+}
+
+static int
+mv88e6060_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val)
+{
+ int addr;
+
+ addr = mv88e6060_port_to_phy_addr(port);
+ if (addr == -1)
+ return 0xffff;
+
+ 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 = htons(ETH_P_TRAILER),
+ .probe = mv88e6060_probe,
+ .setup = mv88e6060_setup,
+ .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)
+{
+ register_switch_driver(&mv88e6060_switch_driver);
+ return 0;
+}
+module_init(mv88e6060_init);
+
+static void __exit mv88e6060_cleanup(void)
+{
+ unregister_switch_driver(&mv88e6060_switch_driver);
+}
+module_exit(mv88e6060_cleanup);
+
+MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
+MODULE_DESCRIPTION("Driver for Marvell 88E6060 ethernet switch chip");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mv88e6060");
diff --git a/drivers/net/dsa/mv88e6123_61_65.c b/drivers/net/dsa/mv88e6123_61_65.c
new file mode 100644
index 00000000000..69c42513dd7
--- /dev/null
+++ b/drivers/net/dsa/mv88e6123_61_65.c
@@ -0,0 +1,409 @@
+/*
+ * 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/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"
+
+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) {
+ if (ret == 0x1212)
+ return "Marvell 88E6123 (A1)";
+ if (ret == 0x1213)
+ return "Marvell 88E6123 (A2)";
+ if ((ret & 0xfff0) == 0x1210)
+ return "Marvell 88E6123";
+
+ if (ret == 0x1612)
+ return "Marvell 88E6161 (A1)";
+ if (ret == 0x1613)
+ return "Marvell 88E6161 (A2)";
+ if ((ret & 0xfff0) == 0x1610)
+ return "Marvell 88E6161";
+
+ if (ret == 0x1652)
+ return "Marvell 88E6165 (A1)";
+ if (ret == 0x1653)
+ return "Marvell 88e6165 (A2)";
+ if ((ret & 0xfff0) == 0x1650)
+ return "Marvell 88E6165";
+ }
+
+ return NULL;
+}
+
+static int mv88e6123_61_65_switch_reset(struct dsa_switch *ds)
+{
+ int i;
+ int ret;
+ unsigned long timeout;
+
+ /* 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. */
+ 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 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);
+
+ /* Priority 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 = ds_to_priv(ds);
+ 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");
diff --git a/drivers/net/dsa/mv88e6131.c b/drivers/net/dsa/mv88e6131.c
new file mode 100644
index 00000000000..953bc6a49e5
--- /dev/null
+++ b/drivers/net/dsa/mv88e6131.c
@@ -0,0 +1,398 @@
+/*
+ * 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
+
+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;
+ 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 = 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");
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
new file mode 100644
index 00000000000..9ce2146346b
--- /dev/null
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -0,0 +1,521 @@
+/*
+ * net/dsa/mv88e6xxx.c - Marvell 88e6xxx switch chip support
+ * 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.
+ */
+
+#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"
+
+/* If the switch's ADDR[4:0] strap pins are strapped to zero, it will
+ * use all 32 SMI bus addresses on its SMI bus, and all switch registers
+ * will be directly accessible on some {device address,register address}
+ * pair. If the ADDR[4:0] pins are not strapped to zero, the switch
+ * will only respond to SMI transactions to that specific address, and
+ * an indirect addressing mechanism needs to be used to access its
+ * registers.
+ */
+static int mv88e6xxx_reg_wait_ready(struct mii_bus *bus, int sw_addr)
+{
+ int ret;
+ int i;
+
+ for (i = 0; i < 16; i++) {
+ ret = mdiobus_read(bus, sw_addr, 0);
+ if (ret < 0)
+ return ret;
+
+ if ((ret & 0x8000) == 0)
+ return 0;
+ }
+
+ return -ETIMEDOUT;
+}
+
+int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg)
+{
+ int ret;
+
+ if (sw_addr == 0)
+ return mdiobus_read(bus, addr, reg);
+
+ /* Wait for the bus to become free. */
+ ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
+ if (ret < 0)
+ return ret;
+
+ /* Transmit the read command. */
+ ret = mdiobus_write(bus, sw_addr, 0, 0x9800 | (addr << 5) | reg);
+ if (ret < 0)
+ return ret;
+
+ /* Wait for the read command to complete. */
+ ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
+ if (ret < 0)
+ return ret;
+
+ /* Read the data. */
+ ret = mdiobus_read(bus, sw_addr, 1);
+ if (ret < 0)
+ return ret;
+
+ return ret & 0xffff;
+}
+
+int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg)
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+ int ret;
+
+ mutex_lock(&ps->smi_mutex);
+ ret = __mv88e6xxx_reg_read(ds->master_mii_bus,
+ ds->pd->sw_addr, addr, reg);
+ mutex_unlock(&ps->smi_mutex);
+
+ return ret;
+}
+
+int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
+ int reg, u16 val)
+{
+ int ret;
+
+ if (sw_addr == 0)
+ return mdiobus_write(bus, addr, reg, val);
+
+ /* Wait for the bus to become free. */
+ ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
+ if (ret < 0)
+ return ret;
+
+ /* Transmit the data to write. */
+ ret = mdiobus_write(bus, sw_addr, 1, val);
+ if (ret < 0)
+ return ret;
+
+ /* Transmit the write command. */
+ ret = mdiobus_write(bus, sw_addr, 0, 0x9400 | (addr << 5) | reg);
+ if (ret < 0)
+ return ret;
+
+ /* Wait for the write command to complete. */
+ ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val)
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+ int ret;
+
+ mutex_lock(&ps->smi_mutex);
+ ret = __mv88e6xxx_reg_write(ds->master_mii_bus,
+ ds->pd->sw_addr, addr, reg, val);
+ mutex_unlock(&ps->smi_mutex);
+
+ return ret;
+}
+
+int mv88e6xxx_config_prio(struct dsa_switch *ds)
+{
+ /* Configure the IP ToS mapping registers. */
+ REG_WRITE(REG_GLOBAL, 0x10, 0x0000);
+ REG_WRITE(REG_GLOBAL, 0x11, 0x0000);
+ REG_WRITE(REG_GLOBAL, 0x12, 0x5555);
+ REG_WRITE(REG_GLOBAL, 0x13, 0x5555);
+ REG_WRITE(REG_GLOBAL, 0x14, 0xaaaa);
+ REG_WRITE(REG_GLOBAL, 0x15, 0xaaaa);
+ REG_WRITE(REG_GLOBAL, 0x16, 0xffff);
+ REG_WRITE(REG_GLOBAL, 0x17, 0xffff);
+
+ /* Configure the IEEE 802.1p priority mapping register. */
+ REG_WRITE(REG_GLOBAL, 0x18, 0xfa41);
+
+ return 0;
+}
+
+int mv88e6xxx_set_addr_direct(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]);
+
+ return 0;
+}
+
+int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr)
+{
+ int i;
+ int ret;
+
+ for (i = 0; i < 6; i++) {
+ int j;
+
+ /* Write the MAC address byte. */
+ REG_WRITE(REG_GLOBAL2, 0x0d, 0x8000 | (i << 8) | addr[i]);
+
+ /* Wait for the write to complete. */
+ for (j = 0; j < 16; j++) {
+ ret = REG_READ(REG_GLOBAL2, 0x0d);
+ if ((ret & 0x8000) == 0)
+ break;
+ }
+ if (j == 16)
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum)
+{
+ if (addr >= 0)
+ return mv88e6xxx_reg_read(ds, addr, regnum);
+ return 0xffff;
+}
+
+int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val)
+{
+ if (addr >= 0)
+ return mv88e6xxx_reg_write(ds, addr, regnum, val);
+ return 0;
+}
+
+#ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU
+static int mv88e6xxx_ppu_disable(struct dsa_switch *ds)
+{
+ int ret;
+ unsigned long timeout;
+
+ ret = REG_READ(REG_GLOBAL, 0x04);
+ REG_WRITE(REG_GLOBAL, 0x04, ret & ~0x4000);
+
+ timeout = jiffies + 1 * HZ;
+ while (time_before(jiffies, timeout)) {
+ ret = REG_READ(REG_GLOBAL, 0x00);
+ usleep_range(1000, 2000);
+ if ((ret & 0xc000) != 0xc000)
+ return 0;
+ }
+
+ return -ETIMEDOUT;
+}
+
+static int mv88e6xxx_ppu_enable(struct dsa_switch *ds)
+{
+ int ret;
+ unsigned long timeout;
+
+ ret = REG_READ(REG_GLOBAL, 0x04);
+ REG_WRITE(REG_GLOBAL, 0x04, ret | 0x4000);
+
+ timeout = jiffies + 1 * HZ;
+ while (time_before(jiffies, timeout)) {
+ ret = REG_READ(REG_GLOBAL, 0x00);
+ usleep_range(1000, 2000);
+ if ((ret & 0xc000) == 0xc000)
+ return 0;
+ }
+
+ return -ETIMEDOUT;
+}
+
+static void mv88e6xxx_ppu_reenable_work(struct work_struct *ugly)
+{
+ struct mv88e6xxx_priv_state *ps;
+
+ ps = container_of(ugly, struct mv88e6xxx_priv_state, ppu_work);
+ if (mutex_trylock(&ps->ppu_mutex)) {
+ struct dsa_switch *ds = ((struct dsa_switch *)ps) - 1;
+
+ if (mv88e6xxx_ppu_enable(ds) == 0)
+ ps->ppu_disabled = 0;
+ mutex_unlock(&ps->ppu_mutex);
+ }
+}
+
+static void mv88e6xxx_ppu_reenable_timer(unsigned long _ps)
+{
+ struct mv88e6xxx_priv_state *ps = (void *)_ps;
+
+ schedule_work(&ps->ppu_work);
+}
+
+static int mv88e6xxx_ppu_access_get(struct dsa_switch *ds)
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+ int ret;
+
+ mutex_lock(&ps->ppu_mutex);
+
+ /* If the PHY polling unit is enabled, disable it so that
+ * we can access the PHY registers. If it was already
+ * disabled, cancel the timer that is going to re-enable
+ * it.
+ */
+ if (!ps->ppu_disabled) {
+ ret = mv88e6xxx_ppu_disable(ds);
+ if (ret < 0) {
+ mutex_unlock(&ps->ppu_mutex);
+ return ret;
+ }
+ ps->ppu_disabled = 1;
+ } else {
+ del_timer(&ps->ppu_timer);
+ ret = 0;
+ }
+
+ return ret;
+}
+
+static void mv88e6xxx_ppu_access_put(struct dsa_switch *ds)
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+
+ /* Schedule a timer to re-enable the PHY polling unit. */
+ mod_timer(&ps->ppu_timer, jiffies + msecs_to_jiffies(10));
+ mutex_unlock(&ps->ppu_mutex);
+}
+
+void mv88e6xxx_ppu_state_init(struct dsa_switch *ds)
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+
+ mutex_init(&ps->ppu_mutex);
+ INIT_WORK(&ps->ppu_work, mv88e6xxx_ppu_reenable_work);
+ init_timer(&ps->ppu_timer);
+ ps->ppu_timer.data = (unsigned long)ps;
+ ps->ppu_timer.function = mv88e6xxx_ppu_reenable_timer;
+}
+
+int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum)
+{
+ int ret;
+
+ ret = mv88e6xxx_ppu_access_get(ds);
+ if (ret >= 0) {
+ ret = mv88e6xxx_reg_read(ds, addr, regnum);
+ mv88e6xxx_ppu_access_put(ds);
+ }
+
+ return ret;
+}
+
+int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr,
+ int regnum, u16 val)
+{
+ int ret;
+
+ ret = mv88e6xxx_ppu_access_get(ds);
+ if (ret >= 0) {
+ ret = mv88e6xxx_reg_write(ds, addr, regnum, val);
+ mv88e6xxx_ppu_access_put(ds);
+ }
+
+ return ret;
+}
+#endif
+
+void mv88e6xxx_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 = mv88e6xxx_reg_read(ds, REG_PORT(i), 0x00);
+ if (port_status < 0)
+ continue;
+
+ link = !!(port_status & 0x0800);
+ }
+
+ if (!link) {
+ if (netif_carrier_ok(dev)) {
+ netdev_info(dev, "link down\n");
+ netif_carrier_off(dev);
+ }
+ continue;
+ }
+
+ switch (port_status & 0x0300) {
+ case 0x0000:
+ speed = 10;
+ break;
+ case 0x0100:
+ speed = 100;
+ break;
+ case 0x0200:
+ speed = 1000;
+ break;
+ default:
+ speed = -1;
+ break;
+ }
+ duplex = (port_status & 0x0400) ? 1 : 0;
+ fc = (port_status & 0x8000) ? 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 int mv88e6xxx_stats_wait(struct dsa_switch *ds)
+{
+ int ret;
+ int i;
+
+ for (i = 0; i < 10; i++) {
+ ret = REG_READ(REG_GLOBAL, 0x1d);
+ if ((ret & 0x8000) == 0)
+ return 0;
+ }
+
+ return -ETIMEDOUT;
+}
+
+static int mv88e6xxx_stats_snapshot(struct dsa_switch *ds, int port)
+{
+ int ret;
+
+ /* Snapshot the hardware statistics counters for this port. */
+ REG_WRITE(REG_GLOBAL, 0x1d, 0xdc00 | port);
+
+ /* Wait for the snapshotting to complete. */
+ ret = mv88e6xxx_stats_wait(ds);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static void mv88e6xxx_stats_read(struct dsa_switch *ds, int stat, u32 *val)
+{
+ u32 _val;
+ int ret;
+
+ *val = 0;
+
+ ret = mv88e6xxx_reg_write(ds, REG_GLOBAL, 0x1d, 0xcc00 | stat);
+ if (ret < 0)
+ return;
+
+ ret = mv88e6xxx_stats_wait(ds);
+ if (ret < 0)
+ return;
+
+ ret = mv88e6xxx_reg_read(ds, REG_GLOBAL, 0x1e);
+ if (ret < 0)
+ return;
+
+ _val = ret << 16;
+
+ ret = mv88e6xxx_reg_read(ds, REG_GLOBAL, 0x1f);
+ if (ret < 0)
+ return;
+
+ *val = _val | ret;
+}
+
+void mv88e6xxx_get_strings(struct dsa_switch *ds,
+ int nr_stats, struct mv88e6xxx_hw_stat *stats,
+ int port, uint8_t *data)
+{
+ int i;
+
+ for (i = 0; i < nr_stats; i++) {
+ memcpy(data + i * ETH_GSTRING_LEN,
+ stats[i].string, ETH_GSTRING_LEN);
+ }
+}
+
+void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
+ int nr_stats, struct mv88e6xxx_hw_stat *stats,
+ int port, uint64_t *data)
+{
+ struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+ int ret;
+ int i;
+
+ mutex_lock(&ps->stats_mutex);
+
+ ret = mv88e6xxx_stats_snapshot(ds, port);
+ if (ret < 0) {
+ mutex_unlock(&ps->stats_mutex);
+ return;
+ }
+
+ /* Read each of the counters. */
+ for (i = 0; i < nr_stats; i++) {
+ struct mv88e6xxx_hw_stat *s = stats + i;
+ u32 low;
+ u32 high;
+
+ mv88e6xxx_stats_read(ds, s->reg, &low);
+ if (s->sizeof_stat == 8)
+ mv88e6xxx_stats_read(ds, s->reg + 1, &high);
+ else
+ high = 0;
+
+ data[i] = (((u64)high) << 32) | low;
+ }
+
+ mutex_unlock(&ps->stats_mutex);
+}
+
+static int __init mv88e6xxx_init(void)
+{
+#if IS_ENABLED(CONFIG_NET_DSA_MV88E6131)
+ register_switch_driver(&mv88e6131_switch_driver);
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_MV88E6123_61_65)
+ register_switch_driver(&mv88e6123_61_65_switch_driver);
+#endif
+ return 0;
+}
+module_init(mv88e6xxx_init);
+
+static void __exit mv88e6xxx_cleanup(void)
+{
+#if IS_ENABLED(CONFIG_NET_DSA_MV88E6123_61_65)
+ unregister_switch_driver(&mv88e6123_61_65_switch_driver);
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_MV88E6131)
+ unregister_switch_driver(&mv88e6131_switch_driver);
+#endif
+}
+module_exit(mv88e6xxx_cleanup);
+
+MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
+MODULE_DESCRIPTION("Driver for Marvell 88E6XXX ethernet switch chips");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
new file mode 100644
index 00000000000..911ede58dd1
--- /dev/null
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -0,0 +1,95 @@
+/*
+ * net/dsa/mv88e6xxx.h - Marvell 88e6xxx switch chip support
+ * 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 __MV88E6XXX_H
+#define __MV88E6XXX_H
+
+#define REG_PORT(p) (0x10 + (p))
+#define REG_GLOBAL 0x1b
+#define REG_GLOBAL2 0x1c
+
+struct mv88e6xxx_priv_state {
+ /* When using multi-chip addressing, this mutex protects
+ * access to the indirect access registers. (In single-chip
+ * mode, this mutex is effectively useless.)
+ */
+ struct mutex smi_mutex;
+
+#ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU
+ /* Handles automatic disabling and re-enabling of the PHY
+ * polling unit.
+ */
+ struct mutex ppu_mutex;
+ int ppu_disabled;
+ struct work_struct ppu_work;
+ struct timer_list ppu_timer;
+#endif
+
+ /* This mutex serialises access to the statistics unit.
+ * Hold this mutex over snapshot + dump sequences.
+ */
+ struct mutex stats_mutex;
+
+ int id; /* switch product id */
+};
+
+struct mv88e6xxx_hw_stat {
+ char string[ETH_GSTRING_LEN];
+ int sizeof_stat;
+ int reg;
+};
+
+int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
+int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
+int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
+ int reg, u16 val);
+int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);
+int mv88e6xxx_config_prio(struct dsa_switch *ds);
+int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr);
+int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);
+int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum);
+int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val);
+void mv88e6xxx_ppu_state_init(struct dsa_switch *ds);
+int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum);
+int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr,
+ int regnum, u16 val);
+void mv88e6xxx_poll_link(struct dsa_switch *ds);
+void mv88e6xxx_get_strings(struct dsa_switch *ds,
+ int nr_stats, struct mv88e6xxx_hw_stat *stats,
+ int port, uint8_t *data);
+void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
+ int nr_stats, struct mv88e6xxx_hw_stat *stats,
+ int port, uint64_t *data);
+
+extern struct dsa_switch_driver mv88e6131_switch_driver;
+extern struct dsa_switch_driver mv88e6123_61_65_switch_driver;
+
+#define REG_READ(addr, reg) \
+ ({ \
+ int __ret; \
+ \
+ __ret = mv88e6xxx_reg_read(ds, addr, reg); \
+ if (__ret < 0) \
+ return __ret; \
+ __ret; \
+ })
+
+#define REG_WRITE(addr, reg, val) \
+ ({ \
+ int __ret; \
+ \
+ __ret = mv88e6xxx_reg_write(ds, addr, reg, val); \
+ if (__ret < 0) \
+ return __ret; \
+ })
+
+
+
+#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 08:11:54 +0000