--- /dev/null
+From 0a63ab263725c427051a8bbaa0732b749627da27 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Thu, 7 Aug 2014 18:15:36 +0200
+Subject: [PATCH 23/36] NET: PHY: adds driver for lantiq PHY11G
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ drivers/net/phy/Kconfig | 5 +
+ drivers/net/phy/Makefile | 1 +
+ drivers/net/phy/lantiq.c | 231 ++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 237 insertions(+)
+ create mode 100644 drivers/net/phy/lantiq.c
+
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -156,6 +156,11 @@ config MICROCHIP_PHY
+ help
+ Supports the LAN88XX PHYs.
+
++config LANTIQ_PHY
++ tristate "Driver for Lantiq PHYs"
++ ---help---
++ Supports the 11G and 22F PHYs.
++
+ config FIXED_PHY
+ tristate "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
+ depends on PHYLIB
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -30,6 +30,7 @@ obj-$(CONFIG_DP83848_PHY) += dp83848.o
+ obj-$(CONFIG_DP83867_PHY) += dp83867.o
+ obj-$(CONFIG_STE10XP) += ste10Xp.o
+ obj-$(CONFIG_MICREL_PHY) += micrel.o
++obj-$(CONFIG_LANTIQ_PHY) += lantiq.o
+ obj-$(CONFIG_MDIO_OCTEON) += mdio-octeon.o
+ obj-$(CONFIG_MICREL_KS8995MA) += spi_ks8995.o
+ obj-$(CONFIG_AT803X_PHY) += at803x.o
+--- /dev/null
++++ b/drivers/net/phy/lantiq.c
+@@ -0,0 +1,278 @@
++/*
++ * 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.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * Copyright (C) 2012 Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
++ */
++
++#include <linux/module.h>
++#include <linux/phy.h>
++#include <linux/of.h>
++
++#define MII_MMDCTRL 0x0d
++#define MII_MMDDATA 0x0e
++
++#define MII_VR9_11G_IMASK 0x19 /* interrupt mask */
++#define MII_VR9_11G_ISTAT 0x1a /* interrupt status */
++
++#define INT_VR9_11G_WOL BIT(15) /* Wake-On-LAN */
++#define INT_VR9_11G_ANE BIT(11) /* Auto-Neg error */
++#define INT_VR9_11G_ANC BIT(10) /* Auto-Neg complete */
++#define INT_VR9_11G_ADSC BIT(5) /* Link auto-downspeed detect */
++#define INT_VR9_11G_DXMC BIT(2) /* Duplex mode change */
++#define INT_VR9_11G_LSPC BIT(1) /* Link speed change */
++#define INT_VR9_11G_LSTC BIT(0) /* Link state change */
++#define INT_VR9_11G_MASK (INT_VR9_11G_LSTC | INT_VR9_11G_ADSC)
++
++#define ADVERTISED_MPD BIT(10) /* Multi-port device */
++
++#define MMD_DEVAD 0x1f
++#define MMD_ACTYPE_SHIFT 14
++#define MMD_ACTYPE_ADDRESS (0 << MMD_ACTYPE_SHIFT)
++#define MMD_ACTYPE_DATA (1 << MMD_ACTYPE_SHIFT)
++#define MMD_ACTYPE_DATA_PI (2 << MMD_ACTYPE_SHIFT)
++#define MMD_ACTYPE_DATA_PIWR (3 << MMD_ACTYPE_SHIFT)
++
++static __maybe_unused int vr9_gphy_mmd_read(struct phy_device *phydev,
++ u16 regnum)
++{
++ phy_write(phydev, MII_MMDCTRL, MMD_ACTYPE_ADDRESS | MMD_DEVAD);
++ phy_write(phydev, MII_MMDDATA, regnum);
++ phy_write(phydev, MII_MMDCTRL, MMD_ACTYPE_DATA | MMD_DEVAD);
++
++ return phy_read(phydev, MII_MMDDATA);
++}
++
++static __maybe_unused int vr9_gphy_mmd_write(struct phy_device *phydev,
++ u16 regnum, u16 val)
++{
++ phy_write(phydev, MII_MMDCTRL, MMD_ACTYPE_ADDRESS | MMD_DEVAD);
++ phy_write(phydev, MII_MMDDATA, regnum);
++ phy_write(phydev, MII_MMDCTRL, MMD_ACTYPE_DATA | MMD_DEVAD);
++ phy_write(phydev, MII_MMDDATA, val);
++
++ return 0;
++}
++
++#if IS_ENABLED(CONFIG_OF_MDIO)
++static int vr9_gphy_of_reg_init(struct phy_device *phydev)
++{
++ u32 tmp;
++
++ /* store the led values if one was passed by the devicetree */
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,ledch", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e0, tmp);
++
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,ledcl", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e1, tmp);
++
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,led0h", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e2, tmp);
++
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,led0l", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e3, tmp);
++
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,led1h", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e4, tmp);
++
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,led1l", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e5, tmp);
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,led2h", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e6, tmp);
++
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,led2l", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e7, tmp);
++
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,led3h", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e8, tmp);
++
++ if (!of_property_read_u32(phydev->dev.of_node, "lantiq,led3l", &tmp))
++ vr9_gphy_mmd_write(phydev, 0x1e9, tmp);
++
++ return 0;
++}
++#else
++static int vr9_gphy_of_reg_init(struct phy_device *phydev)
++{
++ return 0;
++}
++#endif /* CONFIG_OF_MDIO */
++
++static int vr9_gphy_config_init(struct phy_device *phydev)
++{
++ int err;
++
++ dev_dbg(&phydev->dev, "%s\n", __func__);
++
++ /* Mask all interrupts */
++ err = phy_write(phydev, MII_VR9_11G_IMASK, 0);
++ if (err)
++ return err;
++
++ /* Clear all pending interrupts */
++ phy_read(phydev, MII_VR9_11G_ISTAT);
++
++ vr9_gphy_mmd_write(phydev, 0x1e0, 0xc0);
++ vr9_gphy_mmd_write(phydev, 0x1e1, 0x00);
++ vr9_gphy_mmd_write(phydev, 0x1e2, 0x70);
++ vr9_gphy_mmd_write(phydev, 0x1e3, 0x03);
++ vr9_gphy_mmd_write(phydev, 0x1e4, 0x70);
++ vr9_gphy_mmd_write(phydev, 0x1e5, 0x03);
++ vr9_gphy_mmd_write(phydev, 0x1e6, 0x70);
++ vr9_gphy_mmd_write(phydev, 0x1e7, 0x03);
++ vr9_gphy_mmd_write(phydev, 0x1e8, 0x70);
++ vr9_gphy_mmd_write(phydev, 0x1e9, 0x03);
++
++ vr9_gphy_of_reg_init(phydev);
++
++ return 0;
++}
++
++static int vr9_gphy_config_aneg(struct phy_device *phydev)
++{
++ int reg, err;
++
++ /* Advertise as multi-port device */
++ reg = phy_read(phydev, MII_CTRL1000);
++ reg |= ADVERTISED_MPD;
++ err = phy_write(phydev, MII_CTRL1000, reg);
++ if (err)
++ return err;
++
++ return genphy_config_aneg(phydev);
++}
++
++static int vr9_gphy_ack_interrupt(struct phy_device *phydev)
++{
++ int reg;
++
++ /*
++ * Possible IRQ numbers:
++ * - IM3_IRL18 for GPHY0
++ * - IM3_IRL17 for GPHY1
++ *
++ * Due to a silicon bug IRQ lines are not really independent from
++ * each other. Sometimes the two lines are driven at the same time
++ * if only one GPHY core raises the interrupt.
++ */
++
++ reg = phy_read(phydev, MII_VR9_11G_ISTAT);
++
++ return (reg < 0) ? reg : 0;
++}
++
++static int vr9_gphy_did_interrupt(struct phy_device *phydev)
++{
++ int reg;
++
++ reg = phy_read(phydev, MII_VR9_11G_ISTAT);
++
++ return reg > 0;
++}
++
++static int vr9_gphy_config_intr(struct phy_device *phydev)
++{
++ int err;
++
++ if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
++ err = phy_write(phydev, MII_VR9_11G_IMASK, INT_VR9_11G_MASK);
++ else
++ err = phy_write(phydev, MII_VR9_11G_IMASK, 0);
++
++ return err;
++}
++
++static struct phy_driver lantiq_phy[] = {
++ {
++ .phy_id = 0xd565a400,
++ .phy_id_mask = 0xfffffff8,
++ .name = "Lantiq XWAY PEF7071",
++ .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause),
++ .flags = 0, /*PHY_HAS_INTERRUPT,*/
++ .config_init = vr9_gphy_config_init,
++ .config_aneg = vr9_gphy_config_aneg,
++ .read_status = genphy_read_status,
++ .ack_interrupt = vr9_gphy_ack_interrupt,
++ .did_interrupt = vr9_gphy_did_interrupt,
++ .config_intr = vr9_gphy_config_intr,
++ .driver = { .owner = THIS_MODULE },
++ }, {
++ .phy_id = 0x030260D0,
++ .phy_id_mask = 0xfffffff0,
++ .name = "Lantiq XWAY VR9 GPHY 11G v1.3",
++ .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause),
++ .flags = 0, /*PHY_HAS_INTERRUPT,*/
++ .config_init = vr9_gphy_config_init,
++ .config_aneg = vr9_gphy_config_aneg,
++ .read_status = genphy_read_status,
++ .ack_interrupt = vr9_gphy_ack_interrupt,
++ .did_interrupt = vr9_gphy_did_interrupt,
++ .config_intr = vr9_gphy_config_intr,
++ .driver = { .owner = THIS_MODULE },
++ }, {
++ .phy_id = 0xd565a408,
++ .phy_id_mask = 0xfffffff8,
++ .name = "Lantiq XWAY VR9 GPHY 11G v1.4",
++ .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause),
++ .flags = 0, /*PHY_HAS_INTERRUPT,*/
++ .config_init = vr9_gphy_config_init,
++ .config_aneg = vr9_gphy_config_aneg,
++ .read_status = genphy_read_status,
++ .ack_interrupt = vr9_gphy_ack_interrupt,
++ .did_interrupt = vr9_gphy_did_interrupt,
++ .config_intr = vr9_gphy_config_intr,
++ .driver = { .owner = THIS_MODULE },
++ }, {
++ .phy_id = 0xd565a418,
++ .phy_id_mask = 0xfffffff8,
++ .name = "Lantiq XWAY XRX PHY22F v1.4",
++ .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
++ .flags = 0, /*PHY_HAS_INTERRUPT,*/
++ .config_init = vr9_gphy_config_init,
++ .config_aneg = vr9_gphy_config_aneg,
++ .read_status = genphy_read_status,
++ .ack_interrupt = vr9_gphy_ack_interrupt,
++ .did_interrupt = vr9_gphy_did_interrupt,
++ .config_intr = vr9_gphy_config_intr,
++ .driver = { .owner = THIS_MODULE },
++ },
++};
++
++static int __init ltq_phy_init(void)
++{
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(lantiq_phy); i++) {
++ int err = phy_driver_register(&lantiq_phy[i]);
++ if (err)
++ pr_err("lantiq_phy: failed to load %s\n", lantiq_phy[i].name);
++ }
++
++ return 0;
++}
++
++static void __exit ltq_phy_exit(void)
++{
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(lantiq_phy); i++)
++ phy_driver_unregister(&lantiq_phy[i]);
++}
++
++module_init(ltq_phy_init);
++module_exit(ltq_phy_exit);
++
++MODULE_DESCRIPTION("Lantiq PHY drivers");
++MODULE_AUTHOR("Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/Documentation/devicetree/bindings/phy/phy-lanitq.txt
+@@ -0,0 +1,216 @@
++Lanitq PHY binding
++============================================
++
++This devicetree binding controls the lantiq ethernet phys led functionality.
++
++Example:
++ mdio@0 {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ compatible = "lantiq,xrx200-mdio";
++ phy5: ethernet-phy@5 {
++ reg = <0x1>;
++ compatible = "lantiq,phy11g", "ethernet-phy-ieee802.3-c22";
++ };
++ phy11: ethernet-phy@11 {
++ reg = <0x11>;
++ compatible = "lantiq,phy22f", "ethernet-phy-ieee802.3-c22";
++ lantiq,led2h = <0x00>;
++ lantiq,led2l = <0x03>;
++ };
++ phy12: ethernet-phy@12 {
++ reg = <0x12>;
++ compatible = "lantiq,phy22f", "ethernet-phy-ieee802.3-c22";
++ lantiq,led1h = <0x00>;
++ lantiq,led1l = <0x03>;
++ };
++ phy13: ethernet-phy@13 {
++ reg = <0x13>;
++ compatible = "lantiq,phy22f", "ethernet-phy-ieee802.3-c22";
++ lantiq,led2h = <0x00>;
++ lantiq,led2l = <0x03>;
++ };
++ phy14: ethernet-phy@14 {
++ reg = <0x14>;
++ compatible = "lantiq,phy22f", "ethernet-phy-ieee802.3-c22";
++ lantiq,led1h = <0x00>;
++ lantiq,led1l = <0x03>;
++ };
++ };
++
++Register Description
++============================================
++
++LEDCH:
++
++Name Hardware Reset Value
++LEDCH 0x00C5
++
++| 15 | | | | | | | 8 |
++=========================================
++| RES |
++=========================================
++
++| 7 | | | | | | | 0 |
++=========================================
++| FBF | SBF |RES | NACS |
++=========================================
++
++Field Bits Type Description
++FBF 7:6 RW Fast Blink Frequency
++ ---
++ 0x0 (00b) F02HZ 2 Hz blinking frequency
++ 0x1 (01b) F04HZ 4 Hz blinking frequency
++ 0x2 (10b) F08HZ 8 Hz blinking frequency
++ 0x3 (11b) F16HZ 16 Hz blinking frequency
++
++SBF 5:4 RW Slow Blink Frequency
++ ---
++ 0x0 (00b) F02HZ 2 Hz blinking frequency
++ 0x1 (01b) F04HZ 4 Hz blinking frequency
++ 0x2 (10b) F08HZ 8 Hz blinking frequency
++ 0x3 (11b) F16HZ 16 Hz blinking frequency
++
++NACS 2:0 RW Inverse of Scan Function
++ ---
++ 0x0 (000b) NONE No Function
++ 0x1 (001b) LINK Complex function enabled when link is up
++ 0x2 (010b) PDOWN Complex function enabled when device is powered-down
++ 0x3 (011b) EEE Complex function enabled when device is in EEE mode
++ 0x4 (100b) ANEG Complex function enabled when auto-negotiation is running
++ 0x5 (101b) ABIST Complex function enabled when analog self-test is running
++ 0x6 (110b) CDIAG Complex function enabled when cable diagnostics are running
++ 0x7 (111b) TEST Complex function enabled when test mode is running
++
++LEDCL:
++
++Name Hardware Reset Value
++LEDCL 0x0067
++
++| 15 | | | | | | | 8 |
++=========================================
++| RES |
++=========================================
++
++| 7 | | | | | | | 0 |
++=========================================
++|RES | SCAN |RES | CBLINK |
++=========================================
++
++Field Bits Type Description
++SCAN 6:4 RW Complex Scan Configuration
++ ---
++ 000 B NONE No Function
++ 001 B LINK Complex function enabled when link is up
++ 010 B PDOWN Complex function enabled when device is powered-down
++ 011 B EEE Complex function enabled when device is in EEE mode
++ 100 B ANEG Complex function enabled when auto-negotiation is running
++ 101 B ABIST Complex function enabled when analog self-test is running
++ 110 B CDIAG Complex function enabled when cable diagnostics are running
++ 111 B TEST Complex function enabled when test mode is running
++
++CBLINK 2:0 RW Complex Blinking Configuration
++ ---
++ 000 B NONE No Function
++ 001 B LINK Complex function enabled when link is up
++ 010 B PDOWN Complex function enabled when device is powered-down
++ 011 B EEE Complex function enabled when device is in EEE mode
++ 100 B ANEG Complex function enabled when auto-negotiation is running
++ 101 B ABIST Complex function enabled when analog self-test is running
++ 110 B CDIAG Complex function enabled when cable diagnostics are running
++ 111 B TEST Complex function enabled when test mode is running
++
++LEDxH:
++
++Name Hardware Reset Value
++LED0H 0x0070
++LED1H 0x0020
++LED2H 0x0040
++LED3H 0x0040
++
++| 15 | | | | | | | 8 |
++=========================================
++| RES |
++=========================================
++
++| 7 | | | | | | | 0 |
++=========================================
++| CON | BLINKF |
++=========================================
++
++Field Bits Type Description
++CON 7:4 RW Constant On Configuration
++ ---
++ 0x0 (0000b) NONE LED does not light up constantly
++ 0x1 (0001b) LINK10 LED is on when link is 10 Mbit/s
++ 0x2 (0010b) LINK100 LED is on when link is 100 Mbit/s
++ 0x3 (0011b) LINK10X LED is on when link is 10/100 Mbit/s
++ 0x4 (0100b) LINK1000 LED is on when link is 1000 Mbit/s
++ 0x5 (0101b) LINK10_0 LED is on when link is 10/1000 Mbit/s
++ 0x6 (0110b) LINK100X LED is on when link is 100/1000 Mbit/s
++ 0x7 (0111b) LINK10XX LED is on when link is 10/100/1000 Mbit/s
++ 0x8 (1000b) PDOWN LED is on when device is powered-down
++ 0x9 (1001b) EEE LED is on when device is in EEE mode
++ 0xA (1010b) ANEG LED is on when auto-negotiation is running
++ 0xB (1011b) ABIST LED is on when analog self-test is running
++ 0xC (1100b) CDIAG LED is on when cable diagnostics are running
++
++BLINKF 3:0 RW Fast Blinking Configuration
++ ---
++ 0x0 (0000b) NONE No Blinking
++ 0x1 (0001b) LINK10 Blink when link is 10 Mbit/s
++ 0x2 (0010b) LINK100 Blink when link is 100 Mbit/s
++ 0x3 (0011b) LINK10X Blink when link is 10/100 Mbit/s
++ 0x4 (0100b) LINK1000 Blink when link is 1000 Mbit/s
++ 0x5 (0101b) LINK10_0 Blink when link is 10/1000 Mbit/s
++ 0x6 (0110b) LINK100X Blink when link is 100/1000 Mbit/s
++ 0x7 (0111b) LINK10XX Blink when link is 10/100/1000 Mbit/s
++ 0x8 (1000b) PDOWN Blink when device is powered-down
++ 0x9 (1001b) EEE Blink when device is in EEE mode
++ 0xA (1010b) ANEG Blink when auto-negotiation is running
++ 0xB (1011b) ABIST Blink when analog self-test is running
++ 0xC (1100b) CDIAG Blink when cable diagnostics are running
++
++LEDxL:
++
++Name Hardware Reset Value
++LED0L 0x0003
++LED1L 0x0000
++LED2L 0x0000
++LED3L 0x0020
++
++| 15 | | | | | | | 8 |
++=========================================
++| RES |
++=========================================
++
++| 7 | | | | | | | 0 |
++=========================================
++| BLINKS | PULSE |
++=========================================
++
++Field Bits Type Description
++BLINKS 7:4 RW Slow Blinkin Configuration
++ ---
++ 0x0 (0000b) NONE No Blinking
++ 0x1 (0001b) LINK10 Blink when link is 10 Mbit/s
++ 0x2 (0010b) LINK100 Blink when link is 100 Mbit/s
++ 0x3 (0011b) LINK10X Blink when link is 10/100 Mbit/s
++ 0x4 (0100b) LINK1000 Blink when link is 1000 Mbit/s
++ 0x5 (0101b) LINK10_0 Blink when link is 10/1000 Mbit/s
++ 0x6 (0110b) LINK100X Blink when link is 100/1000 Mbit/s
++ 0x7 (0111b) LINK10XX Blink when link is 10/100/1000 Mbit/s
++ 0x8 (1000b) PDOWN Blink when device is powered-down
++ 0x9 (1001b) EEE Blink when device is in EEE mode
++ 0xA (1010b) ANEG Blink when auto-negotiation is running
++ 0xB (1011b) ABIST Blink when analog self-test is running
++ 0xC (1100b) CDIAG Blink when cable diagnostics are runningning
++
++PULSE 3:0 RW Pulsing Configuration
++ The pulse field is a mask field by which certain events can be combined
++ ---
++ 0x0 (0000b) NONE No pulsing
++ 0x1 (0001b) TXACT Transmit activity
++ 0x2 (0010b) RXACT Receive activity
++ 0x4 (0100b) COL Collision
++ 0x8 (1000b) RES Reserved
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