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authorGiuseppe Cavallaro <peppe.cavallaro@st.com>2008-11-28 19:42:41 -0500
committerDavid S. Miller <davem@davemloft.net>2008-11-28 19:42:41 -0500
commitf95be1806fde884c1655237d49a7e5f82e4a935f (patch)
tree546cf0d1ea682fa6580b1cf387ed8c78fed9a5ec /drivers/net/phy
parent4621bf129856bad902d7662053b79faaeb3e66cc (diff)
phy: add the ST ste10Xp PHYs
This patch adds the STMicroelectronics ste10xp PHY device driver. It supports both the ste100p and the ste101p devices. Suspend/resume alredy added. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy')
-rw-r--r--drivers/net/phy/Kconfig6
-rw-r--r--drivers/net/phy/Makefile1
-rw-r--r--drivers/net/phy/ste10Xp.c137
3 files changed, 144 insertions, 0 deletions
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index a1938e18cb62..0b368dc49aea 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -71,6 +71,12 @@ config NATIONAL_PHY
71 ---help--- 71 ---help---
72 Currently supports the DP83865 PHY. 72 Currently supports the DP83865 PHY.
73 73
74config STE10XP
75 depends on PHYLIB
76 tristate "Driver for STMicroelectronics STe10Xp PHYs"
77 ---help---
78 This is the driver for the STe100p and STe101p PHYs.
79
74config FIXED_PHY 80config FIXED_PHY
75 bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" 81 bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
76 depends on PHYLIB=y 82 depends on PHYLIB=y
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index eba495453aef..67959c9d4ca5 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_FIXED_PHY) += fixed.o
17obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o 17obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
18obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o 18obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o
19obj-$(CONFIG_NATIONAL_PHY) += national.o 19obj-$(CONFIG_NATIONAL_PHY) += national.o
20obj-$(CONFIG_STE10XP) += ste10Xp.o
diff --git a/drivers/net/phy/ste10Xp.c b/drivers/net/phy/ste10Xp.c
new file mode 100644
index 000000000000..6bdb0d53aaf9
--- /dev/null
+++ b/drivers/net/phy/ste10Xp.c
@@ -0,0 +1,137 @@
1/*
2 * drivers/net/phy/ste10Xp.c
3 *
4 * Driver for STMicroelectronics STe10Xp PHYs
5 *
6 * Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
7 *
8 * Copyright (c) 2008 STMicroelectronics Limited
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
17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/sched.h>
20#include <linux/kernel.h>
21#include <linux/moduleparam.h>
22#include <linux/interrupt.h>
23#include <linux/netdevice.h>
24#include <linux/ethtool.h>
25#include <linux/mii.h>
26#include <linux/phy.h>
27
28#define MII_XCIIS 0x11 /* Configuration Info IRQ & Status Reg */
29#define MII_XIE 0x12 /* Interrupt Enable Register */
30#define MII_XIE_DEFAULT_MASK 0x0070 /* ANE complete, Remote Fault, Link Down */
31
32#define STE101P_PHY_ID 0x00061c50
33#define STE100P_PHY_ID 0x1c040011
34
35static int ste10Xp_config_init(struct phy_device *phydev)
36{
37 int value, err;
38
39 /* Software Reset PHY */
40 value = phy_read(phydev, MII_BMCR);
41 if (value < 0)
42 return value;
43
44 value |= BMCR_RESET;
45 err = phy_write(phydev, MII_BMCR, value);
46 if (err < 0)
47 return err;
48
49 do {
50 value = phy_read(phydev, MII_BMCR);
51 } while (value & BMCR_RESET);
52
53 return 0;
54}
55
56static int ste10Xp_config_intr(struct phy_device *phydev)
57{
58 int err, value;
59
60 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
61 /* Enable all STe101P interrupts (PR12) */
62 err = phy_write(phydev, MII_XIE, MII_XIE_DEFAULT_MASK);
63 /* clear any pending interrupts */
64 if (err == 0) {
65 value = phy_read(phydev, MII_XCIIS);
66 if (value < 0)
67 err = value;
68 }
69 } else
70 err = phy_write(phydev, MII_XIE, 0);
71
72 return err;
73}
74
75static int ste10Xp_ack_interrupt(struct phy_device *phydev)
76{
77 int err = phy_read(phydev, MII_XCIIS);
78 if (err < 0)
79 return err;
80
81 return 0;
82}
83
84static struct phy_driver ste101p_pdriver = {
85 .phy_id = STE101P_PHY_ID,
86 .phy_id_mask = 0xfffffff0,
87 .name = "STe101p",
88 .features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
89 .flags = PHY_HAS_INTERRUPT,
90 .config_init = ste10Xp_config_init,
91 .config_aneg = genphy_config_aneg,
92 .read_status = genphy_read_status,
93 .ack_interrupt = ste10Xp_ack_interrupt,
94 .config_intr = ste10Xp_config_intr,
95 .suspend = genphy_suspend,
96 .resume = genphy_resume,
97 .driver = {.owner = THIS_MODULE,}
98};
99
100static struct phy_driver ste100p_pdriver = {
101 .phy_id = STE100P_PHY_ID,
102 .phy_id_mask = 0xffffffff,
103 .name = "STe100p",
104 .features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
105 .flags = PHY_HAS_INTERRUPT,
106 .config_init = ste10Xp_config_init,
107 .config_aneg = genphy_config_aneg,
108 .read_status = genphy_read_status,
109 .ack_interrupt = ste10Xp_ack_interrupt,
110 .config_intr = ste10Xp_config_intr,
111 .suspend = genphy_suspend,
112 .resume = genphy_resume,
113 .driver = {.owner = THIS_MODULE,}
114};
115
116static int __init ste10Xp_init(void)
117{
118 int retval;
119
120 retval = phy_driver_register(&ste100p_pdriver);
121 if (retval < 0)
122 return retval;
123 return phy_driver_register(&ste101p_pdriver);
124}
125
126static void __exit ste10Xp_exit(void)
127{
128 phy_driver_unregister(&ste100p_pdriver);
129 phy_driver_unregister(&ste101p_pdriver);
130}
131
132module_init(ste10Xp_init);
133module_exit(ste10Xp_exit);
134
135MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");
136MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
137MODULE_LICENSE("GPL");