ath79: drop mv88e6063 switch driver

Due do a missing KCONFIG isn't selectable nor enabled in the target
kernel config. Drop it for now and enable/add the driver at the time it
is required.

Signed-off-by: Mathias Kresin <[email protected]>

target/linux/ath79/files/drivers/net/dsa/mv88e6063.c

@@ -1,289 +0,0 @@
-/*
- * net/dsa/mv88e6063.c - Driver for Marvell 88e6063 switch chips
- * Copyright (c) 2009 Gabor Juhos <[email protected]>
- *
- * 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);