Signed-off-by: Heiko Schocher <h...@denx.de>
cc: linux-net...@vger.kernel.org
cc: Wolfgang Denk <w...@denx.de>
---
drivers/net/phy/Kconfig | 5 ++
drivers/net/phy/Makefile | 1 +
drivers/net/phy/amd79.c | 109 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 115 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/phy/amd79.c
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index a702443..ee70d04 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -15,6 +15,11 @@ if PHYLIB
comment "MII PHY device drivers"
+config AMD_PHY
+ tristate "Drivers for the AMD79 PHYs"
+ ---help---
+ Currently supports the amd79c874
+
config MARVELL_PHY
tristate "Drivers for Marvell PHYs"
---help---
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 2333215..79bc8b4 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -23,3 +23,4 @@ obj-$(CONFIG_DP83640_PHY) += dp83640.o
obj-$(CONFIG_STE10XP) += ste10Xp.o
obj-$(CONFIG_MICREL_PHY) += micrel.o
obj-$(CONFIG_MDIO_OCTEON) += mdio-octeon.o
+obj-$(CONFIG_AMD_PHY) += amd79.o
diff --git a/drivers/net/phy/amd79.c b/drivers/net/phy/amd79.c
new file mode 100644
index 0000000..914d696
--- /dev/null
+++ b/drivers/net/phy/amd79.c
@@ -0,0 +1,109 @@
+/*
+ * Driver for AMD am79 PHYs
+ *
+ * Author: Heiko Schocher <h...@denx.de>
+ *
+ * Copyright (c) 2011 DENX Software Engineering GmbH
+ *
+ * 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/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/unistd.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/uaccess.h>
+
+#include <asm/irq.h>
+
+#define MII_AMD79_IR 17 /* Interrupt Status/Control Register */
+#define MII_AMD79_IR_EN_LINK 0x0400 /* IR enable Linkstate */
+#define MII_AMD79_IR_ACK_LINK 0x0004 /* IR ack Linkstate */
+
+MODULE_DESCRIPTION("AMD PHY driver");
+MODULE_AUTHOR("Heiko Schocher <h...@denx.de>");
+MODULE_LICENSE("GPL");
+
+static int amd79_ack_interrupt(struct phy_device *phydev)
+{
+ int err;
+
+ err = phy_read(phydev, MII_BMSR);
+ if (err < 0)
+ return err;
+
+ err = phy_read(phydev, MII_AMD79_IR);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int amd79_config_init(struct phy_device *phydev)
+{
+ int err = 0;
+
+ return err;
+}
+
+static int amd79_config_intr(struct phy_device *phydev)
+{
+ int err;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+ err = phy_write(phydev, MII_AMD79_IR_EN_LINK,
+ MII_AMD79_IR_EN_LINK);
+ else
+ err = phy_write(phydev, MII_AMD79_IR_EN_LINK, 0);
+
+ return err;
+}
+
+static struct phy_driver amd79_driver = {
+ .phy_id = 0x0022561b,
+ .name = "AMD79C874",
+ .phy_id_mask = 0xfffffff0,
+ .features = PHY_BASIC_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .config_init = amd79_config_init,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = amd79_ack_interrupt,
+ .config_intr = amd79_config_intr,
+ .driver = { .owner = THIS_MODULE,},
+};
+
+static int __init amd79_init(void)
+{
+ int ret;
+
+ ret = phy_driver_register(&amd79_driver);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void __exit amd79_exit(void)
+{
+ phy_driver_unregister(&amd79_driver);
+}
+
+module_init(amd79_init);
+module_exit(amd79_exit);
--
1.7.5.4
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