+++ /dev/null
-/*
- * net/dsa/mv88e6063.c - Driver for Marvell 88e6063 switch chips
- * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
- *
- * This driver was base on: net/dsa/mv88e6060.c
- * net/dsa/mv88e6063.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/version.h>
-#include <linux/list.h>
-#include <linux/netdevice.h>
-#include <linux/phy.h>
-#include <net/dsa.h>
-#include <linux/version.h>
-
-#define REG_BASE 0x10
-#define REG_PHY(p) (REG_BASE + (p))
-#define REG_PORT(p) (REG_BASE + 8 + (p))
-#define REG_GLOBAL (REG_BASE + 0x0f)
-#define NUM_PORTS 7
-
-static int reg_read(struct dsa_switch *ds, int addr, int reg)
-{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev);
- return mdiobus_read(bus, addr, reg);
-#else
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->dev);
- return mdiobus_read(bus, addr, reg);
-#endif
-}
-
-#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)
-{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev);
- return mdiobus_write(bus, addr, reg, val);
-#else
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->dev);
- return mdiobus_write(bus, addr, reg, val);
-#endif
-}
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,8,0)
-static enum dsa_tag_protocol mv88e6063_get_tag_protocol(struct dsa_switch *ds)
-{
- return DSA_TAG_PROTO_TRAILER;
-}
-#endif
-
-#define REG_WRITE(addr, reg, val) \
- ({ \
- int __ret; \
- \
- __ret = reg_write(ds, addr, reg, val); \
- if (__ret < 0) \
- return __ret; \
- })
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
-static char *mv88e6063_drv_probe(struct device *host_dev, int sw_addr)
-#else
-static const char *mv88e6063_drv_probe(struct device *dsa_dev,
- struct device *host_dev, int sw_addr,
- void **_priv)
-#endif
-{
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
- int ret;
-
- if (!bus)
- return NULL;
-
- ret = mdiobus_read(bus, REG_PORT(0), 0x03);
- if (ret >= 0) {
- ret &= 0xfff0;
- if (ret == 0x1530)
- return "Marvell 88E6063";
- }
-
- return NULL;
-}
-
-static int mv88e6063_switch_reset(struct dsa_switch *ds)
-{
- int i;
- int ret;
-
- /*
- * Set all ports to the disabled state.
- */
- for (i = 0; i < NUM_PORTS; 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, 0x0a, 0xa130);
-
- /*
- * Wait up to one second for reset to complete.
- */
- for (i = 0; i < 1000; i++) {
- ret = REG_READ(REG_GLOBAL, 0x00);
- if ((ret & 0x8000) == 0x0000)
- break;
-
- msleep(1);
- }
- if (i == 1000)
- return -ETIMEDOUT;
-
- return 0;
-}
-
-static int mv88e6063_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 mv88e6063_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) ?
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
- ds->phys_port_mask :
-#else
- ds->enabled_port_mask :
-#endif
- (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 mv88e6063_setup(struct dsa_switch *ds)
-{
- int i;
- int ret;
-
- ret = mv88e6063_switch_reset(ds);
- if (ret < 0)
- return ret;
-
- /* @@@ initialise atu */
-
- ret = mv88e6063_setup_global(ds);
- if (ret < 0)
- return ret;
-
- for (i = 0; i < NUM_PORTS; i++) {
- ret = mv88e6063_setup_port(ds, i);
- if (ret < 0)
- return ret;
- }
-
- return 0;
-}
-
-static int mv88e6063_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 mv88e6063_port_to_phy_addr(int port)
-{
- if (port >= 0 && port <= NUM_PORTS)
- return REG_PHY(port);
- return -1;
-}
-
-static int mv88e6063_phy_read(struct dsa_switch *ds, int port, int regnum)
-{
- int addr;
-
- addr = mv88e6063_port_to_phy_addr(port);
- if (addr == -1)
- return 0xffff;
-
- return reg_read(ds, addr, regnum);
-}
-
-static int
-mv88e6063_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val)
-{
- int addr;
-
- addr = mv88e6063_port_to_phy_addr(port);
- if (addr == -1)
- return 0xffff;
-
- return reg_write(ds, addr, regnum, val);
-}
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,9,0)
-static struct dsa_switch_driver mv88e6063_switch_ops = {
-#else
-static struct dsa_switch_ops mv88e6063_switch_ops = {
-#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0)
- .tag_protocol = htons(ETH_P_TRAILER),
-#else
- .get_tag_protocol = mv88e6063_get_tag_protocol,
-#endif
- .probe = mv88e6063_drv_probe,
- .setup = mv88e6063_setup,
- .set_addr = mv88e6063_set_addr,
- .phy_read = mv88e6063_phy_read,
- .phy_write = mv88e6063_phy_write,
-};
-
-static int __init mv88e6063_init(void)
-{
- register_switch_driver(&mv88e6063_switch_ops);
- return 0;
-}
-module_init(mv88e6063_init);
-
-static void __exit mv88e6063_cleanup(void)
-{
- unregister_switch_driver(&mv88e6063_switch_ops);
-}
-module_exit(mv88e6063_cleanup);
projects / openwrt / staging / jogo.git / commitdiff