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Diffstat (limited to 'drivers/net/phy/cicada.c')
-rw-r--r--drivers/net/phy/cicada.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/drivers/net/phy/cicada.c b/drivers/net/phy/cicada.c
new file mode 100644
index 000000000000..c47fb2ecd147
--- /dev/null
+++ b/drivers/net/phy/cicada.c
@@ -0,0 +1,134 @@
1/*
2 * drivers/net/phy/cicada.c
3 *
4 * Driver for Cicada PHYs
5 *
6 * Author: Andy Fleming
7 *
8 * Copyright (c) 2004 Freescale Semiconductor, Inc.
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16#include <linux/config.h>
17#include <linux/kernel.h>
18#include <linux/sched.h>
19#include <linux/string.h>
20#include <linux/errno.h>
21#include <linux/unistd.h>
22#include <linux/slab.h>
23#include <linux/interrupt.h>
24#include <linux/init.h>
25#include <linux/delay.h>
26#include <linux/netdevice.h>
27#include <linux/etherdevice.h>
28#include <linux/skbuff.h>
29#include <linux/spinlock.h>
30#include <linux/mm.h>
31#include <linux/module.h>
32#include <linux/version.h>
33#include <linux/mii.h>
34#include <linux/ethtool.h>
35#include <linux/phy.h>
36
37#include <asm/io.h>
38#include <asm/irq.h>
39#include <asm/uaccess.h>
40
41/* Cicada Extended Control Register 1 */
42#define MII_CIS8201_EXT_CON1 0x17
43#define MII_CIS8201_EXTCON1_INIT 0x0000
44
45/* Cicada Interrupt Mask Register */
46#define MII_CIS8201_IMASK 0x19
47#define MII_CIS8201_IMASK_IEN 0x8000
48#define MII_CIS8201_IMASK_SPEED 0x4000
49#define MII_CIS8201_IMASK_LINK 0x2000
50#define MII_CIS8201_IMASK_DUPLEX 0x1000
51#define MII_CIS8201_IMASK_MASK 0xf000
52
53/* Cicada Interrupt Status Register */
54#define MII_CIS8201_ISTAT 0x1a
55#define MII_CIS8201_ISTAT_STATUS 0x8000
56#define MII_CIS8201_ISTAT_SPEED 0x4000
57#define MII_CIS8201_ISTAT_LINK 0x2000
58#define MII_CIS8201_ISTAT_DUPLEX 0x1000
59
60/* Cicada Auxiliary Control/Status Register */
61#define MII_CIS8201_AUX_CONSTAT 0x1c
62#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
63#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
64#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
65#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
66#define MII_CIS8201_AUXCONSTAT_100 0x0008
67
68MODULE_DESCRIPTION("Cicadia PHY driver");
69MODULE_AUTHOR("Andy Fleming");
70MODULE_LICENSE("GPL");
71
72static int cis820x_config_init(struct phy_device *phydev)
73{
74 int err;
75
76 err = phy_write(phydev, MII_CIS8201_AUX_CONSTAT,
77 MII_CIS8201_AUXCONSTAT_INIT);
78
79 if (err < 0)
80 return err;
81
82 err = phy_write(phydev, MII_CIS8201_EXT_CON1,
83 MII_CIS8201_EXTCON1_INIT);
84
85 return err;
86}
87
88static int cis820x_ack_interrupt(struct phy_device *phydev)
89{
90 int err = phy_read(phydev, MII_CIS8201_ISTAT);
91
92 return (err < 0) ? err : 0;
93}
94
95static int cis820x_config_intr(struct phy_device *phydev)
96{
97 int err;
98
99 if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
100 err = phy_write(phydev, MII_CIS8201_IMASK,
101 MII_CIS8201_IMASK_MASK);
102 else
103 err = phy_write(phydev, MII_CIS8201_IMASK, 0);
104
105 return err;
106}
107
108/* Cicada 820x */
109static struct phy_driver cis8204_driver = {
110 .phy_id = 0x000fc440,
111 .name = "Cicada Cis8204",
112 .phy_id_mask = 0x000fffc0,
113 .features = PHY_GBIT_FEATURES,
114 .flags = PHY_HAS_INTERRUPT,
115 .config_init = &cis820x_config_init,
116 .config_aneg = &genphy_config_aneg,
117 .read_status = &genphy_read_status,
118 .ack_interrupt = &cis820x_ack_interrupt,
119 .config_intr = &cis820x_config_intr,
120 .driver = { .owner = THIS_MODULE,},
121};
122
123static int __init cis8204_init(void)
124{
125 return phy_driver_register(&cis8204_driver);
126}
127
128static void __exit cis8204_exit(void)
129{
130 phy_driver_unregister(&cis8204_driver);
131}
132
133module_init(cis8204_init);
134module_exit(cis8204_exit);