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authorTejun Heo <tj@kernel.org>2012-04-01 12:30:01 -0700
committerTejun Heo <tj@kernel.org>2012-04-01 12:55:00 -0700
commit959d851caa48829eb85cb85aa949fd6b4c5d5bc6 (patch)
tree3ba9c94ec346275fb44c4f0d1cd2537cdff8d811 /drivers/net/phy/amd.c
parenta5567932fc926739e29e98487128080f40c61710 (diff)
parent48ddbe194623ae089cc0576e60363f2d2e85662a (diff)
Merge branch 'for-3.5' of ../cgroup into block/for-3.5/core-merged
cgroup/for-3.5 contains the following changes which blk-cgroup needs to proceed with the on-going cleanup. * Dynamic addition and removal of cftypes to make config/stat file handling modular for policies. * cgroup removal update to not wait for css references to drain to fix blkcg removal hang caused by cfq caching cfqgs. Pull in cgroup/for-3.5 into block/for-3.5/core. This causes the following conflicts in block/blk-cgroup.c. * 761b3ef50e "cgroup: remove cgroup_subsys argument from callbacks" conflicts with blkiocg_pre_destroy() addition and blkiocg_attach() removal. Resolved by removing @subsys from all subsys methods. * 676f7c8f84 "cgroup: relocate cftype and cgroup_subsys definitions in controllers" conflicts with ->pre_destroy() and ->attach() updates and removal of modular config. Resolved by dropping forward declarations of the methods and applying updates to the relocated blkio_subsys. * 4baf6e3325 "cgroup: convert all non-memcg controllers to the new cftype interface" builds upon the previous item. Resolved by adding ->base_cftypes to the relocated blkio_subsys. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/net/phy/amd.c')
-rw-r--r--drivers/net/phy/amd.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/net/phy/amd.c b/drivers/net/phy/amd.c
new file mode 100644
index 00000000000..cfabd5fe537
--- /dev/null
+++ b/drivers/net/phy/amd.c
@@ -0,0 +1,102 @@
+/*
+ * Driver for AMD am79c PHYs
+ *
+ * Author: Heiko Schocher <hs@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/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+
+#define PHY_ID_AM79C874 0x0022561b
+
+#define MII_AM79C_IR 17 /* Interrupt Status/Control Register */
+#define MII_AM79C_IR_EN_LINK 0x0400 /* IR enable Linkstate */
+#define MII_AM79C_IR_EN_ANEG 0x0100 /* IR enable Aneg Complete */
+#define MII_AM79C_IR_IMASK_INIT (MII_AM79C_IR_EN_LINK | MII_AM79C_IR_EN_ANEG)
+
+MODULE_DESCRIPTION("AMD PHY driver");
+MODULE_AUTHOR("Heiko Schocher <hs@denx.de>");
+MODULE_LICENSE("GPL");
+
+static int am79c_ack_interrupt(struct phy_device *phydev)
+{
+ int err;
+
+ err = phy_read(phydev, MII_BMSR);
+ if (err < 0)
+ return err;
+
+ err = phy_read(phydev, MII_AM79C_IR);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int am79c_config_init(struct phy_device *phydev)
+{
+ return 0;
+}
+
+static int am79c_config_intr(struct phy_device *phydev)
+{
+ int err;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+ err = phy_write(phydev, MII_AM79C_IR, MII_AM79C_IR_IMASK_INIT);
+ else
+ err = phy_write(phydev, MII_AM79C_IR, 0);
+
+ return err;
+}
+
+static struct phy_driver am79c_driver = {
+ .phy_id = PHY_ID_AM79C874,
+ .name = "AM79C874",
+ .phy_id_mask = 0xfffffff0,
+ .features = PHY_BASIC_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .config_init = am79c_config_init,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = am79c_ack_interrupt,
+ .config_intr = am79c_config_intr,
+ .driver = { .owner = THIS_MODULE,},
+};
+
+static int __init am79c_init(void)
+{
+ int ret;
+
+ ret = phy_driver_register(&am79c_driver);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void __exit am79c_exit(void)
+{
+ phy_driver_unregister(&am79c_driver);
+}
+
+module_init(am79c_init);
+module_exit(am79c_exit);
+
+static struct mdio_device_id __maybe_unused amd_tbl[] = {
+ { PHY_ID_AM79C874, 0xfffffff0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(mdio, amd_tbl);