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-rw-r--r--target/linux/mvebu/patches-4.9/401-net-phy-move-phy-MMD-accessors-to-phy-core.c.patch292
1 files changed, 292 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-4.9/401-net-phy-move-phy-MMD-accessors-to-phy-core.c.patch b/target/linux/mvebu/patches-4.9/401-net-phy-move-phy-MMD-accessors-to-phy-core.c.patch
new file mode 100644
index 0000000000..970aec1d24
--- /dev/null
+++ b/target/linux/mvebu/patches-4.9/401-net-phy-move-phy-MMD-accessors-to-phy-core.c.patch
@@ -0,0 +1,292 @@
+From: Russell King <rmk+kernel@armlinux.org.uk>
+Date: Wed, 4 Jan 2017 10:46:43 +0000
+Subject: [PATCH] net: phy: move phy MMD accessors to phy-core.c
+
+Move the phy_(read|write)__mmd() helpers out of line, they will become
+our main MMD accessor functions, and so will be a little more complex.
+This complexity doesn't belong in an inline function. Also move the
+_indirect variants as well to keep like functionality together.
+
+Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
+---
+ create mode 100644 drivers/net/phy/phy-core.c
+
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -1,6 +1,7 @@
+ # Makefile for Linux PHY drivers and MDIO bus drivers
+
+-libphy-y := phy.o phy_device.o mdio_bus.o mdio_device.o
++libphy-y := phy.o phy_device.o mdio_bus.o mdio_device.o \
++ phy-core.o
+ libphy-$(CONFIG_SWPHY) += swphy.o
+
+ obj-$(CONFIG_MDIO_BOARDINFO) += mdio-boardinfo.o
+--- a/drivers/net/phy/phy.c
++++ b/drivers/net/phy/phy.c
+@@ -1171,91 +1171,6 @@ void phy_mac_interrupt(struct phy_device
+ }
+ EXPORT_SYMBOL(phy_mac_interrupt);
+
+-static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad,
+- int addr)
+-{
+- /* Write the desired MMD Devad */
+- bus->write(bus, addr, MII_MMD_CTRL, devad);
+-
+- /* Write the desired MMD register address */
+- bus->write(bus, addr, MII_MMD_DATA, prtad);
+-
+- /* Select the Function : DATA with no post increment */
+- bus->write(bus, addr, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
+-}
+-
+-/**
+- * phy_read_mmd_indirect - reads data from the MMD registers
+- * @phydev: The PHY device bus
+- * @prtad: MMD Address
+- * @devad: MMD DEVAD
+- *
+- * Description: it reads data from the MMD registers (clause 22 to access to
+- * clause 45) of the specified phy address.
+- * To read these register we have:
+- * 1) Write reg 13 // DEVAD
+- * 2) Write reg 14 // MMD Address
+- * 3) Write reg 13 // MMD Data Command for MMD DEVAD
+- * 3) Read reg 14 // Read MMD data
+- */
+-int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad)
+-{
+- struct phy_driver *phydrv = phydev->drv;
+- int addr = phydev->mdio.addr;
+- int value = -1;
+-
+- if (!phydrv->read_mmd_indirect) {
+- struct mii_bus *bus = phydev->mdio.bus;
+-
+- mutex_lock(&bus->mdio_lock);
+- mmd_phy_indirect(bus, prtad, devad, addr);
+-
+- /* Read the content of the MMD's selected register */
+- value = bus->read(bus, addr, MII_MMD_DATA);
+- mutex_unlock(&bus->mdio_lock);
+- } else {
+- value = phydrv->read_mmd_indirect(phydev, prtad, devad, addr);
+- }
+- return value;
+-}
+-EXPORT_SYMBOL(phy_read_mmd_indirect);
+-
+-/**
+- * phy_write_mmd_indirect - writes data to the MMD registers
+- * @phydev: The PHY device
+- * @prtad: MMD Address
+- * @devad: MMD DEVAD
+- * @data: data to write in the MMD register
+- *
+- * Description: Write data from the MMD registers of the specified
+- * phy address.
+- * To write these register we have:
+- * 1) Write reg 13 // DEVAD
+- * 2) Write reg 14 // MMD Address
+- * 3) Write reg 13 // MMD Data Command for MMD DEVAD
+- * 3) Write reg 14 // Write MMD data
+- */
+-void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
+- int devad, u32 data)
+-{
+- struct phy_driver *phydrv = phydev->drv;
+- int addr = phydev->mdio.addr;
+-
+- if (!phydrv->write_mmd_indirect) {
+- struct mii_bus *bus = phydev->mdio.bus;
+-
+- mutex_lock(&bus->mdio_lock);
+- mmd_phy_indirect(bus, prtad, devad, addr);
+-
+- /* Write the data into MMD's selected register */
+- bus->write(bus, addr, MII_MMD_DATA, data);
+- mutex_unlock(&bus->mdio_lock);
+- } else {
+- phydrv->write_mmd_indirect(phydev, prtad, devad, addr, data);
+- }
+-}
+-EXPORT_SYMBOL(phy_write_mmd_indirect);
+-
+ /**
+ * phy_init_eee - init and check the EEE feature
+ * @phydev: target phy_device struct
+--- /dev/null
++++ b/drivers/net/phy/phy-core.c
+@@ -0,0 +1,135 @@
++/*
++ * Core PHY library, taken from phy.c
++ *
++ * 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/export.h>
++#include <linux/phy.h>
++
++static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad,
++ int addr)
++{
++ /* Write the desired MMD Devad */
++ bus->write(bus, addr, MII_MMD_CTRL, devad);
++
++ /* Write the desired MMD register address */
++ bus->write(bus, addr, MII_MMD_DATA, prtad);
++
++ /* Select the Function : DATA with no post increment */
++ bus->write(bus, addr, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
++}
++
++/**
++ * phy_read_mmd_indirect - reads data from the MMD registers
++ * @phydev: The PHY device bus
++ * @prtad: MMD Address
++ * @devad: MMD DEVAD
++ *
++ * Description: it reads data from the MMD registers (clause 22 to access to
++ * clause 45) of the specified phy address.
++ * To read these register we have:
++ * 1) Write reg 13 // DEVAD
++ * 2) Write reg 14 // MMD Address
++ * 3) Write reg 13 // MMD Data Command for MMD DEVAD
++ * 3) Read reg 14 // Read MMD data
++ */
++int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad)
++{
++ struct phy_driver *phydrv = phydev->drv;
++ int addr = phydev->mdio.addr;
++ int value = -1;
++
++ if (!phydrv->read_mmd_indirect) {
++ struct mii_bus *bus = phydev->mdio.bus;
++
++ mutex_lock(&bus->mdio_lock);
++ mmd_phy_indirect(bus, prtad, devad, addr);
++
++ /* Read the content of the MMD's selected register */
++ value = bus->read(bus, addr, MII_MMD_DATA);
++ mutex_unlock(&bus->mdio_lock);
++ } else {
++ value = phydrv->read_mmd_indirect(phydev, prtad, devad, addr);
++ }
++ return value;
++}
++EXPORT_SYMBOL(phy_read_mmd_indirect);
++
++/**
++ * phy_read_mmd - Convenience function for reading a register
++ * from an MMD on a given PHY.
++ * @phydev: The phy_device struct
++ * @devad: The MMD to read from
++ * @regnum: The register on the MMD to read
++ *
++ * Same rules as for phy_read();
++ */
++int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
++{
++ if (!phydev->is_c45)
++ return -EOPNOTSUPP;
++
++ return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
++ MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
++}
++EXPORT_SYMBOL(phy_read_mmd);
++
++/**
++ * phy_write_mmd_indirect - writes data to the MMD registers
++ * @phydev: The PHY device
++ * @prtad: MMD Address
++ * @devad: MMD DEVAD
++ * @data: data to write in the MMD register
++ *
++ * Description: Write data from the MMD registers of the specified
++ * phy address.
++ * To write these register we have:
++ * 1) Write reg 13 // DEVAD
++ * 2) Write reg 14 // MMD Address
++ * 3) Write reg 13 // MMD Data Command for MMD DEVAD
++ * 3) Write reg 14 // Write MMD data
++ */
++void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
++ int devad, u32 data)
++{
++ struct phy_driver *phydrv = phydev->drv;
++ int addr = phydev->mdio.addr;
++
++ if (!phydrv->write_mmd_indirect) {
++ struct mii_bus *bus = phydev->mdio.bus;
++
++ mutex_lock(&bus->mdio_lock);
++ mmd_phy_indirect(bus, prtad, devad, addr);
++
++ /* Write the data into MMD's selected register */
++ bus->write(bus, addr, MII_MMD_DATA, data);
++ mutex_unlock(&bus->mdio_lock);
++ } else {
++ phydrv->write_mmd_indirect(phydev, prtad, devad, addr, data);
++ }
++}
++EXPORT_SYMBOL(phy_write_mmd_indirect);
++
++/**
++ * phy_write_mmd - Convenience function for writing a register
++ * on an MMD on a given PHY.
++ * @phydev: The phy_device struct
++ * @devad: The MMD to read from
++ * @regnum: The register on the MMD to read
++ * @val: value to write to @regnum
++ *
++ * Same rules as for phy_write();
++ */
++int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val)
++{
++ if (!phydev->is_c45)
++ return -EOPNOTSUPP;
++
++ regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff);
++
++ return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
++}
++EXPORT_SYMBOL(phy_write_mmd);
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -627,14 +627,7 @@ struct phy_fixup {
+ *
+ * Same rules as for phy_read();
+ */
+-static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
+-{
+- if (!phydev->is_c45)
+- return -EOPNOTSUPP;
+-
+- return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
+- MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
+-}
++int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
+
+ /**
+ * phy_read_mmd_indirect - reads data from the MMD registers
+@@ -728,16 +721,7 @@ static inline bool phy_is_pseudo_fixed_l
+ *
+ * Same rules as for phy_write();
+ */
+-static inline int phy_write_mmd(struct phy_device *phydev, int devad,
+- u32 regnum, u16 val)
+-{
+- if (!phydev->is_c45)
+- return -EOPNOTSUPP;
+-
+- regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff);
+-
+- return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
+-}
++int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
+
+ /**
+ * phy_write_mmd_indirect - writes data to the MMD registers
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