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Message-Id: <1227794255-19924-1-git-send-email-peppe.cavallaro@st.com>
Date: Thu, 27 Nov 2008 14:57:35 +0100
From: Giuseppe CAVALLARO <peppe.cavallaro@...com>
To: netdev@...r.kernel.org
Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>
Subject: [PATCH] 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@...com>
---
drivers/net/phy/Kconfig | 6 ++
drivers/net/phy/Makefile | 1 +
drivers/net/phy/ste10Xp.c | 137 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 144 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/phy/ste10Xp.c
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 0923c8f..6ccf9e6 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -71,6 +71,12 @@ config NATIONAL_PHY
---help---
Currently supports the DP83865 PHY.
+config STE10XP
+ depends on PHYLIB
+ tristate "Driver for STMicroelectronics STe10Xp PHYs"
+ ---help---
+ This is the driver for the STe100p and STe101p PHYs.
+
config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
depends on PHYLIB=y
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 5c53ca5..babe76e 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_FIXED_PHY) += fixed.o
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
obj-$(CONFIG_MDIO_OF_GPIO) += mdio-ofgpio.o
obj-$(CONFIG_NATIONAL_PHY) += national.o
+obj-$(CONFIG_STE10XP) += ste10Xp.o
diff --git a/drivers/net/phy/ste10Xp.c b/drivers/net/phy/ste10Xp.c
new file mode 100644
index 0000000..0733151
--- /dev/null
+++ b/drivers/net/phy/ste10Xp.c
@@ -0,0 +1,137 @@
+/*
+ * drivers/net/phy/ste10Xp.c
+ *
+ * Driver for STMicroelectronics STe10Xp PHYs
+ *
+ * Author: Giuseppe Cavallaro <peppe.cavallaro@...com>
+ *
+ * Copyright (c) 2008 STMicroelectronics Limited
+ *
+ * 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/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/moduleparam.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+
+#define MII_XCIIS 0x11 /* Configuration Info IRQ & Status Reg */
+#define MII_XIE 0x12 /* Interrupt Enable Register */
+#define MII_XIE_DEFAULT_MASK 0x0070 /* ANE complete, Remote Fault, Link Down */
+
+#define STE101P_PHY_ID 0x00061c50
+#define STE100P_PHY_ID 0x1c040011
+
+static int ste10Xp_config_init(struct phy_device *phydev)
+{
+ int value, err;
+
+ /* Software Reset PHY */
+ value = phy_read(phydev, MII_BMCR);
+ if (value < 0)
+ return value;
+
+ value |= BMCR_RESET;
+ err = phy_write(phydev, MII_BMCR, value);
+ if (err < 0)
+ return err;
+
+ do {
+ value = phy_read(phydev, MII_BMCR);
+ } while (value & BMCR_RESET);
+
+ return 0;
+}
+
+static int ste10Xp_config_intr(struct phy_device *phydev)
+{
+ int err, value;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+ /* Enable all STe101P interrupts (PR12) */
+ err = phy_write(phydev, MII_XIE, MII_XIE_DEFAULT_MASK);
+ /* clear any pending interrupts */
+ if (err == 0) {
+ value = phy_read(phydev, MII_XCIIS);
+ if (value < 0)
+ err = value;
+ }
+ } else
+ err = phy_write(phydev, MII_XIE, 0);
+
+ return err;
+}
+
+static int ste10Xp_ack_interrupt(struct phy_device *phydev)
+{
+ int err = phy_read(phydev, MII_XCIIS);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static struct phy_driver ste101p_pdriver = {
+ .phy_id = STE101P_PHY_ID,
+ .phy_id_mask = 0xfffffff0,
+ .name = "STe101p",
+ .features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
+ .flags = PHY_HAS_INTERRUPT,
+ .config_init = ste10Xp_config_init,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = ste10Xp_ack_interrupt,
+ .config_intr = ste10Xp_config_intr,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+ .driver = {.owner = THIS_MODULE,}
+};
+
+static struct phy_driver ste100p_pdriver = {
+ .phy_id = STE100P_PHY_ID,
+ .phy_id_mask = 0xffffffff,
+ .name = "STe100p",
+ .features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
+ .flags = PHY_HAS_INTERRUPT,
+ .config_init = ste10Xp_config_init,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = ste10Xp_ack_interrupt,
+ .config_intr = ste10Xp_config_intr,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+ .driver = {.owner = THIS_MODULE,}
+};
+
+static int __init ste10Xp_init(void)
+{
+ int retval;
+
+ retval = phy_driver_register(&ste100p_pdriver);
+ if (retval < 0)
+ return retval;
+ return phy_driver_register(&ste101p_pdriver);
+}
+
+static void __exit ste10Xp_exit(void)
+{
+ phy_driver_unregister(&ste100p_pdriver);
+ phy_driver_unregister(&ste101p_pdriver);
+}
+
+module_init(ste10Xp_init);
+module_exit(ste10Xp_exit);
+
+MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");
+MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@...com>");
+MODULE_LICENSE("GPL");
--
1.5.6.5
--
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