2 * net/dsa/mv88e6063.c - Driver for Marvell 88e6063 switch chips
3 * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
5 * This driver was base on: net/dsa/mv88e6060.c
6 * net/dsa/mv88e6063.c - Driver for Marvell 88e6060 switch chips
7 * Copyright (c) 2008-2009 Marvell Semiconductor
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
15 #include <linux/version.h>
16 #include <linux/list.h>
17 #include <linux/netdevice.h>
18 #include <linux/phy.h>
20 #include <linux/version.h>
23 #define REG_PHY(p) (REG_BASE + (p))
24 #define REG_PORT(p) (REG_BASE + 8 + (p))
25 #define REG_GLOBAL (REG_BASE + 0x0f)
28 static int reg_read(struct dsa_switch
*ds
, int addr
, int reg
)
30 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
31 struct mii_bus
*bus
= dsa_host_dev_to_mii_bus(ds
->master_dev
);
32 return mdiobus_read(bus
, addr
, reg
);
34 struct mii_bus
*bus
= dsa_host_dev_to_mii_bus(ds
->dev
);
35 return mdiobus_read(bus
, addr
, reg
);
39 #define REG_READ(addr, reg) \
43 __ret = reg_read(ds, addr, reg); \
50 static int reg_write(struct dsa_switch
*ds
, int addr
, int reg
, u16 val
)
52 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
53 struct mii_bus
*bus
= dsa_host_dev_to_mii_bus(ds
->master_dev
);
54 return mdiobus_write(bus
, addr
, reg
, val
);
56 struct mii_bus
*bus
= dsa_host_dev_to_mii_bus(ds
->dev
);
57 return mdiobus_write(bus
, addr
, reg
, val
);
61 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,8,0)
62 static enum dsa_tag_protocol
mv88e6063_get_tag_protocol(struct dsa_switch
*ds
)
64 return DSA_TAG_PROTO_TRAILER
;
68 #define REG_WRITE(addr, reg, val) \
72 __ret = reg_write(ds, addr, reg, val); \
77 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
78 static char *mv88e6063_drv_probe(struct device
*host_dev
, int sw_addr
)
80 static const char *mv88e6063_drv_probe(struct device
*dsa_dev
,
81 struct device
*host_dev
, int sw_addr
,
85 struct mii_bus
*bus
= dsa_host_dev_to_mii_bus(host_dev
);
91 ret
= mdiobus_read(bus
, REG_PORT(0), 0x03);
95 return "Marvell 88E6063";
101 static int mv88e6063_switch_reset(struct dsa_switch
*ds
)
107 * Set all ports to the disabled state.
109 for (i
= 0; i
< NUM_PORTS
; i
++) {
110 ret
= REG_READ(REG_PORT(i
), 0x04);
111 REG_WRITE(REG_PORT(i
), 0x04, ret
& 0xfffc);
115 * Wait for transmit queues to drain.
122 REG_WRITE(REG_GLOBAL
, 0x0a, 0xa130);
125 * Wait up to one second for reset to complete.
127 for (i
= 0; i
< 1000; i
++) {
128 ret
= REG_READ(REG_GLOBAL
, 0x00);
129 if ((ret
& 0x8000) == 0x0000)
140 static int mv88e6063_setup_global(struct dsa_switch
*ds
)
143 * Disable discarding of frames with excessive collisions,
144 * set the maximum frame size to 1536 bytes, and mask all
147 REG_WRITE(REG_GLOBAL
, 0x04, 0x0800);
150 * Enable automatic address learning, set the address
151 * database size to 1024 entries, and set the default aging
154 REG_WRITE(REG_GLOBAL
, 0x0a, 0x2130);
159 static int mv88e6063_setup_port(struct dsa_switch
*ds
, int p
)
161 int addr
= REG_PORT(p
);
164 * Do not force flow control, disable Ingress and Egress
165 * Header tagging, disable VLAN tunneling, and set the port
166 * state to Forwarding. Additionally, if this is the CPU
167 * port, enable Ingress and Egress Trailer tagging mode.
169 REG_WRITE(addr
, 0x04, dsa_is_cpu_port(ds
, p
) ? 0x4103 : 0x0003);
172 * Port based VLAN map: give each port its own address
173 * database, allow the CPU port to talk to each of the 'real'
174 * ports, and allow each of the 'real' ports to only talk to
177 REG_WRITE(addr
, 0x06,
179 (dsa_is_cpu_port(ds
, p
) ?
180 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
183 ds
->enabled_port_mask
:
185 (1 << ds
->dst
->cpu_port
)));
188 * Port Association Vector: when learning source addresses
189 * of packets, add the address to the address database using
190 * a port bitmap that has only the bit for this port set and
191 * the other bits clear.
193 REG_WRITE(addr
, 0x0b, 1 << p
);
198 static int mv88e6063_setup(struct dsa_switch
*ds
)
203 ret
= mv88e6063_switch_reset(ds
);
207 /* @@@ initialise atu */
209 ret
= mv88e6063_setup_global(ds
);
213 for (i
= 0; i
< NUM_PORTS
; i
++) {
214 ret
= mv88e6063_setup_port(ds
, i
);
222 static int mv88e6063_set_addr(struct dsa_switch
*ds
, u8
*addr
)
224 REG_WRITE(REG_GLOBAL
, 0x01, (addr
[0] << 8) | addr
[1]);
225 REG_WRITE(REG_GLOBAL
, 0x02, (addr
[2] << 8) | addr
[3]);
226 REG_WRITE(REG_GLOBAL
, 0x03, (addr
[4] << 8) | addr
[5]);
231 static int mv88e6063_port_to_phy_addr(int port
)
233 if (port
>= 0 && port
<= NUM_PORTS
)
234 return REG_PHY(port
);
238 static int mv88e6063_phy_read(struct dsa_switch
*ds
, int port
, int regnum
)
242 addr
= mv88e6063_port_to_phy_addr(port
);
246 return reg_read(ds
, addr
, regnum
);
250 mv88e6063_phy_write(struct dsa_switch
*ds
, int port
, int regnum
, u16 val
)
254 addr
= mv88e6063_port_to_phy_addr(port
);
258 return reg_write(ds
, addr
, regnum
, val
);
261 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,9,0)
262 static struct dsa_switch_driver mv88e6063_switch_ops
= {
264 static struct dsa_switch_ops mv88e6063_switch_ops
= {
266 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0)
267 .tag_protocol
= htons(ETH_P_TRAILER
),
269 .get_tag_protocol
= mv88e6063_get_tag_protocol
,
271 .probe
= mv88e6063_drv_probe
,
272 .setup
= mv88e6063_setup
,
273 .set_addr
= mv88e6063_set_addr
,
274 .phy_read
= mv88e6063_phy_read
,
275 .phy_write
= mv88e6063_phy_write
,
278 static int __init
mv88e6063_init(void)
280 register_switch_driver(&mv88e6063_switch_ops
);
283 module_init(mv88e6063_init
);
285 static void __exit
mv88e6063_cleanup(void)
287 unregister_switch_driver(&mv88e6063_switch_ops
);
289 module_exit(mv88e6063_cleanup
);