imx6: drop lingering files
Since 3.18 kernel support was dropped, remove lingering files. Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com> SVN-Revision: 48007
This commit is contained in:
Luka Perkov
parent
f80cee1ce5
commit
fb8c5702e0
@ -1,949 +0,0 @@
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/*
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* drivers/net/phy/gw16083.c
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*
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* Driver for GW16083 Ventana Ethernet Expansion Mezzanine
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*
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* Author: Tim Harvey
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*
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* Copyright (c) 2014 Tim Harvey <tharvey@gateworks.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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/*
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* The GW16083 interfaces with a Ventana baseboard via the PCIe bus, an i2c
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* bus (i2c2), and a couple of GPIO's. On the PCIe bus is an i210 GigE with
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* its MAC connected to Port4 of a Marvell MV88E6176 7-port GigE switch via
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* MDIO and RGMII. Ports 0-3 are standard copper RJ45 but Ports 5 and 6
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* connect to Marvell MV88E1111 dual-mode Copper/Fiber PHY's over SGMII and
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* MDIO. The PHY's have both an RG45 for copper and an SFP module.
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*/
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/unistd.h>
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/spinlock.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/mii.h>
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#include <linux/ethtool.h>
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#include <linux/phy.h>
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#include <linux/marvell_phy.h>
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#include <linux/of_platform.h>
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#include <linux/io.h>
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#include <asm/irq.h>
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#include <linux/uaccess.h>
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#include "gw16083.h"
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#undef FAIL_ON_CHECKSUM_ERR /* fail to configure SFP if checksum bad */
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#define PORT_POWER_CONTROL /* ports can be enabled/disabled via sysfs */
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#define PORT_MODE_CONTROL /* ports 5/6 can have SFP/RJ45 mode forced */
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MODULE_DESCRIPTION("GW16083 driver");
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MODULE_AUTHOR("Tim Harvey");
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MODULE_LICENSE("GPL");
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struct mv88e1111_port_state {
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int port;
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bool present;
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bool serdes;
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bool sfp_signal;
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bool sfp_present;
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bool sfp_compat;
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bool sfp_enabled;
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char sfp_id[64];
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};
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struct mv88e1111_priv {
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struct phy_device *phydev;
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struct i2c_client *client;
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struct mv88e1111_port_state port5;
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struct mv88e1111_port_state port6;
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struct kobject *sysfs_kobj;
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};
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enum {
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mode_copper = 0,
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mode_serdes = 1,
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};
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static struct i2c_client *gw16083_client = NULL;
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static int gw16083_read_port_sfp(struct i2c_client *client,
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struct mv88e1111_port_state *state);
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/* read switch port register from port0-6 */
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u16 read_switch_port(struct phy_device *pdev, int port, u8 regaddr)
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{
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return pdev->bus->read(pdev->bus, MV_BASE + port, regaddr);
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}
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/* write switch port register to port0-6 */
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int write_switch_port(struct phy_device *pdev, int port, u8 regaddr, u16 val)
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{
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return pdev->bus->write(pdev->bus, MV_BASE + port, regaddr, val);
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}
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/*
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* read_switch_port_phy - write a register for a specific port on 88E6176
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* The 88E6176 PHY registers must be accessed thorugh the Global2 address
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* using the SMI_PHY_COMMAND_REG and SMI_PHY_DATA_REG.
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*/
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int read_switch_port_phy(struct phy_device *pdev, int port, u8 regaddr)
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{
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u16 reg;
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int i;
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dev_dbg(&pdev->dev, "read_phy: port%d reg=0x%02x\n", port, regaddr);
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reg = SMIBUSY | SMIMODE22 | SMIOP_READ;
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reg |= port << DEVADDR;
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reg |= regaddr << REGADDR;
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pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SMI_PHY_COMMAND, reg);
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for (i = 0; i < 10; i++) {
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reg = pdev->bus->read(pdev->bus, MV_GLOBAL2,
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MV_SMI_PHY_COMMAND);
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if (!(reg & (1<<15)))
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break;
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mdelay(1);
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}
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/* timeout */
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if (i == 10)
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return 0xffff;
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reg = pdev->bus->read(pdev->bus, MV_GLOBAL2, MV_SMI_PHY_DATA);
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return reg;
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}
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/*
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* write_switch_port_phy - write a register for a specific port on 88E6176
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* The 88E6176 PHY registers must be accessed thorugh the Global2 address
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* using the SMI_PHY_COMMAND_REG and SMI_PHY_DATA_REG.
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*/
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int write_switch_port_phy(struct phy_device *pdev, int port, u8 addr, u16 reg)
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{
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int i;
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dev_dbg(&pdev->dev, "write_phy: port%d reg=0x%02x val=0x%04x\n", port,
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addr, reg);
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pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SMI_PHY_DATA, reg);
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reg = SMIBUSY | SMIMODE22 | SMIOP_WRITE;
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reg |= port << DEVADDR;
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reg |= addr << REGADDR;
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pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SMI_PHY_COMMAND, reg);
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for (i = 0; i < 10; i++) {
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reg = pdev->bus->read(pdev->bus, MV_GLOBAL2,
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MV_SMI_PHY_COMMAND);
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if (!(reg & (1<<15)))
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break;
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mdelay(1);
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}
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/* timeout */
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if (i == 10)
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return -ETIMEDOUT;
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return 0;
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}
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/* read a scratch register from switch */
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inline u8 read_switch_scratch(struct phy_device *pdev, u8 reg)
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{
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pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SCRATCH_MISC, (reg << 8));
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return pdev->bus->read(pdev->bus, MV_GLOBAL2, MV_SCRATCH_MISC) & 0xff;
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}
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/* write a scratch register to switch */
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inline void write_switch_scratch(struct phy_device *pdev, u8 reg, u8 val)
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{
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pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SCRATCH_MISC,
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(1 << 15) | (reg << 8) | val);
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}
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/* enable or disable an SFP's TXEN signal */
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static int enable_sfp_txen(struct phy_device *pdev, int port, bool enable)
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{
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u8 gpio;
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int bit;
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if (port != 5 && port != 6)
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return -EINVAL;
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/* GPIO[2:1] output low to enable TXEN */
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bit = (port == 5) ? 1 : 2;
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gpio = read_switch_scratch(pdev, MV_GPIO_DATA);
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if (enable)
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gpio |= (1 << bit);
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else
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gpio &= (1 << bit);
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write_switch_scratch(pdev, MV_GPIO_DATA, gpio);
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dev_info(&pdev->dev, "Port%d: SFP TX %s\n", port, enable ?
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"enabled" : "disabled");
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return 0;
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}
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/* configure mv88e1111 port for copper or serdes
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* For Copper we set auto link/duplex/speed detection
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* For SerDes/Fiber we force 1000mbps link up and auto-neg duplex
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*/
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static int config_mv88e1111_port_sfp(struct phy_device *pdev, int port,
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bool sfp)
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{
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u16 reg;
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if (port != 5 && port != 6)
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return -EINVAL;
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dev_dbg(&pdev->dev, "%s: Port%d %s\n", __func__, port,
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sfp ? "SFP" : "copper");
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if (sfp) {
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enable_sfp_txen(pdev, port, 1);
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/* configure MV88E6176 Physical Control Port Register */
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dev_info(&pdev->dev,
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"Port%d: SFP: force 1000mbps link up "
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"(auto-negotiate duplex)\n",
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port);
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reg = read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL);
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reg &= ~0x3f; /* clear 5-0 */
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reg |= (1 << 4) | (1 << 5); /* force link up */
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reg |= 2; /* force 1000mbps */
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write_switch_port(pdev, port, MV_PORT_PHYS_CONTROL, reg);
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reg = read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL);
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}
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/* copper */
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else {
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enable_sfp_txen(pdev, port, 0);
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/* configure MV88E6176 Physical Control Port Register */
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dev_info(&pdev->dev,
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"Port%d: Copper: set auto-neg link/duplex/speed\n",
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port);
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reg = read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL);
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reg &= ~0x3f; /* clear 5-0 */
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reg |= 3; /* speed not forced */
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write_switch_port(pdev, port, MV_PORT_PHYS_CONTROL, reg);
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reg = read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL);
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}
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dev_dbg(&pdev->dev, "%s: Port%d %s PORT_PHYS_CONTROL=0x%04x\n",
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__func__, port, sfp ? "SFP" : "copper",
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read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL));
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return 0;
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}
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#if defined(PORT_POWER_CONTROL)
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static int enable_switch_port(struct phy_device *pdev, int port, bool enable)
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{
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struct mv88e1111_priv *priv = dev_get_drvdata(&pdev->dev);
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u16 reg;
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/* power up port */
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dev_info(&priv->client->dev, "Port%d: %s\n", port,
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enable ? "normal operation" : "power down");
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reg = read_switch_port_phy(pdev, port, MV_PHY_CONTROL);
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if (enable)
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reg &= ~(1 << 11); /* Normal Operation */
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else
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reg |= (1 << 11); /* power down */
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write_switch_port_phy(pdev, port, MV_PHY_CONTROL, reg);
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reg = read_switch_port_phy(pdev, port, MV_PHY_CONTROL1);
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if (enable)
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reg &= ~(1 << 2); /* Normal Operation */
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else
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reg |= (1 << 2); /* power down */
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write_switch_port_phy(pdev, port, MV_PHY_CONTROL1, reg);
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return 0;
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}
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#endif
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/*
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* Sysfs API
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*/
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struct mv88e1111_port_state *get_port_state(struct mv88e1111_priv *priv,
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int port)
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{
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if (port == 5)
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return &priv->port5;
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if (port == 6)
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return &priv->port6;
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return NULL;
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}
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/*
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* get MV88E6176 port number for a specific GW16083 port name
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* The GW16083 ports as shown on the silkscreen are not mapped according to
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* the MV88E6176 ports numbers.
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*/
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static int gw16083_get_port(const char* name)
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{
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int i;
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int map[] = { 3, 2, 1, 0, 5, 6 };
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if (strncasecmp(name, "ETHERNET", 8) != 0 || strlen(name) != 9)
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return -1;
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i = name[8] - '0';
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if (i < 1 || i > 6)
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return -1;
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return map[i-1];
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}
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static ssize_t port_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct mv88e1111_priv *priv = dev_get_drvdata(dev);
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int port = -1;
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u16 reg;
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if (sscanf(attr->attr.name, "port%d", &port) != 1)
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return 0;
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if (port < 0 || port > 6)
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return 0;
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reg = read_switch_port_phy(priv->phydev, port, MV_PHY_CONTROL);
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return sprintf(buf, "%s\n", (reg & (1 << 11)) ? "disabled" : "enabled");
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}
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#if defined(PORT_POWER_CONTROL)
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static ssize_t port_store(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct mv88e1111_priv *priv = dev_get_drvdata(dev);
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int port = -1;
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int val;
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port = gw16083_get_port(attr->attr.name);
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if (port < 0)
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return 0;
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if (sscanf(buf, "%d", &val) != 1)
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return 0;
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enable_switch_port(priv->phydev, port, val ? 1 : 0);
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return count;
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}
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static DEVICE_ATTR(ethernet1, S_IWUSR | S_IRUGO, port_show, port_store);
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static DEVICE_ATTR(ethernet2, S_IWUSR | S_IRUGO, port_show, port_store);
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static DEVICE_ATTR(ethernet3, S_IWUSR | S_IRUGO, port_show, port_store);
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static DEVICE_ATTR(ethernet4, S_IWUSR | S_IRUGO, port_show, port_store);
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static DEVICE_ATTR(ethernet5, S_IWUSR | S_IRUGO, port_show, port_store);
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static DEVICE_ATTR(ethernet6, S_IWUSR | S_IRUGO, port_show, port_store);
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#else
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static DEVICE_ATTR(ethernet1, S_IRUGO, port_show, NULL);
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static DEVICE_ATTR(ethernet2, S_IRUGO, port_show, NULL);
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static DEVICE_ATTR(ethernet3, S_IRUGO, port_show, NULL);
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static DEVICE_ATTR(ethernet4, S_IRUGO, port_show, NULL);
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static DEVICE_ATTR(ethernet5, S_IRUGO, port_show, NULL);
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static DEVICE_ATTR(ethernet6, S_IRUGO, port_show, NULL);
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#endif
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static ssize_t portsfp_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct mv88e1111_priv *priv = dev_get_drvdata(dev);
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struct mv88e1111_port_state *state;
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state = get_port_state(priv, gw16083_get_port(attr->attr.name));
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if (!state)
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return 0;
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if (!state->sfp_present)
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return 0;
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return sprintf(buf, "%s\n", state->sfp_id);
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}
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static ssize_t portmode_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct mv88e1111_priv *priv = dev_get_drvdata(dev);
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struct mv88e1111_port_state *state;
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state = get_port_state(priv, gw16083_get_port(attr->attr.name));
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if (!state)
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return 0;
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return sprintf(buf, "%s\n", state->serdes ? "SFP" : "RJ45");
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}
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static DEVICE_ATTR(ethernet5_sfp, S_IRUGO, portsfp_show, NULL);
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static DEVICE_ATTR(ethernet6_sfp, S_IRUGO, portsfp_show, NULL);
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#ifdef PORT_MODE_CONTROL
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static ssize_t portmode_store(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct mv88e1111_priv *priv = dev_get_drvdata(dev);
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struct mv88e1111_port_state *state;
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u16 reg;
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int port;
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port = gw16083_get_port(attr->attr.name);
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state = get_port_state(priv, port);
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if (!state)
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return 0;
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reg = read_switch_port_phy(priv->phydev, port, MII_M1111_PHY_EXT_SR);
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if (strcasecmp(buf, "auto") == 0) {
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reg &= ~(1<<15); /* enable auto-selection */
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dev_info(&priv->client->dev, "Port%d: enable auto-selection\n",
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port);
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} else if (strcasecmp(buf, "RJ45") == 0) {
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reg |= (1<<15); /* disable auto-selection */
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reg |= 0xb; /* RGMII to Copper */
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config_mv88e1111_port_sfp(priv->phydev, port, 0);
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dev_info(&priv->client->dev, "Port%d: select RJ45\n", port);
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} else if (strcasecmp(buf, "SFP") == 0) {
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reg |= (1<<15); /* disable auto-selection */
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reg |= 0x3; /* RGMII to Fiber */
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config_mv88e1111_port_sfp(priv->phydev, port, 1);
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dev_info(&priv->client->dev, "Port%d: select SFP\n", port);
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}
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write_switch_port_phy(priv->phydev, port, MII_M1111_PHY_EXT_SR, reg);
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return count;
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}
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static DEVICE_ATTR(ethernet5_mode, S_IWUSR | S_IRUGO, portmode_show,
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portmode_store);
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static DEVICE_ATTR(ethernet6_mode, S_IWUSR | S_IRUGO, portmode_show,
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portmode_store);
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#else
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static DEVICE_ATTR(ethernet5_mode, S_IRUGO, portmode_show, NULL);
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static DEVICE_ATTR(ethernet6_mode, S_IRUGO, portmode_show, NULL);
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#endif
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/*
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* PHY driver
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*/
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static int
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mv88e6176_config_init(struct phy_device *pdev)
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{
|
||||
dev_dbg(&pdev->dev, "%s\n", __func__);
|
||||
pdev->state = PHY_RUNNING;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* check MV88E1111 PHY status and MV88E6176 GPIO */
|
||||
static int
|
||||
mv88e6176_read_status(struct phy_device *pdev)
|
||||
{
|
||||
struct mv88e1111_priv *priv = dev_get_drvdata(&pdev->dev);
|
||||
struct mv88e1111_port_state *state;
|
||||
bool serdes, sfp_present, sfp_signal;
|
||||
int port;
|
||||
int ret = 0;
|
||||
u16 gpio;
|
||||
|
||||
dev_dbg(&pdev->dev, "%s", __func__);
|
||||
gpio = read_switch_scratch(pdev, MV_GPIO_DATA);
|
||||
for (port = 5; port < 7; port++) {
|
||||
serdes = (read_switch_port_phy(pdev, port, MII_M1111_PHY_EXT_SR)
|
||||
& (1<<13)) ? 1 : 0;
|
||||
dev_dbg(&pdev->dev, "%s: Port%d GPIO:0x%02x SerDes:%d\n",
|
||||
__func__, port, gpio, serdes);
|
||||
switch(port) {
|
||||
case 5:
|
||||
state = &priv->port5;
|
||||
sfp_present = !((gpio >> 5) & 1);
|
||||
sfp_signal = !((gpio >> 6) & 1);
|
||||
break;
|
||||
case 6:
|
||||
state = &priv->port6;
|
||||
sfp_present = !((gpio >> 3) & 1);
|
||||
sfp_signal = !((gpio >> 4) & 1);
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* on sfp_detect read/verify SFP MSA and set sfp_compat
|
||||
* on sfp_signal issue link down?
|
||||
* on serdes auto-select
|
||||
*/
|
||||
if (state->sfp_present != sfp_present) {
|
||||
state->sfp_present = sfp_present;
|
||||
dev_info(&pdev->dev, "Port%d: SFP %s\n",
|
||||
port, sfp_present ? "inserted" : "removed");
|
||||
if (state->sfp_present) {
|
||||
if (gw16083_read_port_sfp(priv->client, state))
|
||||
state->sfp_compat = false;
|
||||
else
|
||||
state->sfp_compat = true;
|
||||
} else {
|
||||
state->sfp_compat = false;
|
||||
state->sfp_enabled = false;
|
||||
}
|
||||
}
|
||||
if (state->sfp_signal != sfp_signal) {
|
||||
state->sfp_signal = sfp_signal;
|
||||
dev_info(&pdev->dev, "Port%d: SFP signal %s\n",
|
||||
port, sfp_signal ? "detected" : "lost");
|
||||
}
|
||||
if (state->serdes != serdes) {
|
||||
state->serdes = serdes;
|
||||
dev_info(&pdev->dev, "Port%d: %s auto-selected\n",
|
||||
port, serdes ? "SERDES" : "copper");
|
||||
|
||||
/*
|
||||
* if auto-selection has switched to copper
|
||||
* disable serdes
|
||||
*/
|
||||
if (!serdes) {
|
||||
config_mv88e1111_port_sfp(pdev, port, 0);
|
||||
state->sfp_enabled = false;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* if serdes and compatible SFP module and not yet enabled
|
||||
* then enable for serdes
|
||||
*/
|
||||
if (serdes && state->sfp_compat && state->sfp_signal &&
|
||||
!state->sfp_enabled)
|
||||
{
|
||||
if (!config_mv88e1111_port_sfp(pdev, port, 1))
|
||||
state->sfp_enabled = true;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int
|
||||
mv88e6176_config_aneg(struct phy_device *pdev)
|
||||
{
|
||||
dev_dbg(&pdev->dev, "%s", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
mv88e6176_remove(struct phy_device *pdev)
|
||||
{
|
||||
dev_dbg(&pdev->dev, "%s", __func__);
|
||||
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet1);
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet2);
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet3);
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet4);
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet5);
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet6);
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet5_sfp);
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet6_sfp);
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet5_mode);
|
||||
device_remove_file(&pdev->dev, &dev_attr_ethernet6_mode);
|
||||
sysfs_remove_link(kernel_kobj, "gw16083");
|
||||
}
|
||||
|
||||
static int
|
||||
mv88e6176_probe(struct phy_device *pdev)
|
||||
{
|
||||
int port;
|
||||
int ret = 0;
|
||||
u32 id, reg;
|
||||
struct mv88e1111_priv *priv;
|
||||
|
||||
dev_dbg(&pdev->dev, "%s: addr=0x%02x bus=%s:%s gw16083_client=%p\n",
|
||||
__func__, pdev->addr, pdev->bus->name, pdev->bus->id,
|
||||
gw16083_client);
|
||||
|
||||
/* In single-chip addressing mode the MV88E6176 shows up on 0x10-0x16 */
|
||||
if (pdev->addr != MV_BASE)
|
||||
return 0;
|
||||
|
||||
/* i2c driver needs to be loaded first */
|
||||
if (!gw16083_client)
|
||||
return 0;
|
||||
|
||||
/* gw16083 has MV88E1676 hanging off of i210 mdio bus */
|
||||
if (strcmp(pdev->bus->name, "igb_enet_mii_bus") != 0)
|
||||
return 0;
|
||||
|
||||
//dev_info(&pdev->dev, "Detected");
|
||||
dev_info(&gw16083_client->dev, "%s: MV88E6176 7-port switch detected",
|
||||
pdev->bus->id);
|
||||
|
||||
/*
|
||||
* port5/6 config: MV88E1111 PHY
|
||||
* Register 20: PHY Control Register
|
||||
* R20_7: add delay to RX_CLK for RXD
|
||||
* R20_1: add delay to TX_CLK for TXD
|
||||
* Register 24: LED Control Register
|
||||
* 0x4111:
|
||||
* Pulse stretch 170 to 340 ms
|
||||
* Register 0: Control Register
|
||||
* R0_15: phy reset
|
||||
*/
|
||||
for (port = 5; port < 7; port++) {
|
||||
#ifndef RGMII_DELAY_ON_PHY
|
||||
write_switch_port(pdev, port, MV_PORT_PHYS_CONTROL, 0xC003);
|
||||
#endif
|
||||
|
||||
id = read_switch_port_phy(pdev, port,
|
||||
MII_M1111_PHY_IDENT0) << 16;
|
||||
id |= read_switch_port_phy(pdev, port, MII_M1111_PHY_IDENT1);
|
||||
if ((id & MII_M1111_PHY_ID_MASK) != MII_M1111_PHY_ID) {
|
||||
dev_err(&gw16083_client->dev,
|
||||
"Port%d: No MV88E1111 PHY detected", port);
|
||||
return 0;
|
||||
//continue;
|
||||
}
|
||||
|
||||
#ifdef RGMII_DELAY_ON_PHY
|
||||
/* phy rx/tx delay */
|
||||
reg = read_switch_port_phy(pdev, port, MII_M1111_PHY_EXT_CR);
|
||||
reg |= (1<<1) | (1<<7);
|
||||
write_switch_port_phy(pdev, port, MII_M1111_PHY_EXT_CR, reg);
|
||||
#endif
|
||||
/* led config */
|
||||
write_switch_port_phy(pdev, port, MII_M1111_PHY_LED_CONTROL,
|
||||
MII_M1111_PHY_LED_PULSE_STR);
|
||||
/* reset phy */
|
||||
reg = read_switch_port_phy(pdev, port, MII_M1111_PHY_CONTROL);
|
||||
reg |= MII_M1111_PHY_CONTROL_RESET;
|
||||
write_switch_port_phy(pdev, port, MII_M1111_PHY_CONTROL, reg);
|
||||
dev_info(&gw16083_client->dev,
|
||||
"Port%d MV88E111 PHY configured\n", port);
|
||||
}
|
||||
|
||||
/*
|
||||
* GPIO Configuration:
|
||||
* GPIO1: FIB5_TXEN# (output)
|
||||
* GPIO2: FIB6_TXEN# (output)
|
||||
* GPIO3: FIB6_PRES# (input)
|
||||
* GPIO4: FIB6_LOS (input)
|
||||
* GPIO5: FIB5_PRES# (input)
|
||||
* GPIO6: FIB5_LOS (input)
|
||||
*/
|
||||
write_switch_scratch(pdev, MV_GPIO_DATA, 0x06); /* GPIO[2:1] out hi */
|
||||
write_switch_scratch(pdev, MV_GPIO_DIR, 0x78); /* GPIO[6:3] inp */
|
||||
|
||||
pdev->irq = PHY_POLL;
|
||||
|
||||
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
memset(priv, 0, sizeof(*priv));
|
||||
priv->phydev = pdev;
|
||||
priv->client = gw16083_client;
|
||||
priv->port5.port = 5;
|
||||
priv->port6.port = 6;
|
||||
dev_set_drvdata(&pdev->dev, priv);
|
||||
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet1);
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet2);
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet3);
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet4);
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet5);
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet6);
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet5_sfp);
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet6_sfp);
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet5_mode);
|
||||
ret |= device_create_file(&pdev->dev, &dev_attr_ethernet6_mode);
|
||||
|
||||
if (unlikely(ret))
|
||||
dev_err(&pdev->dev, "Failed creating attrs\n");
|
||||
|
||||
/* Add a nice symlink to the real device */
|
||||
ret = sysfs_create_link(kernel_kobj, &pdev->dev.kobj, "gw16083");
|
||||
|
||||
dev_dbg(&pdev->dev, "initial state: GPIO=0x%02x "
|
||||
"Port5_serdes=%d Port6_serdes=%d\n",
|
||||
read_switch_scratch(pdev, MV_GPIO_DATA),
|
||||
(read_switch_port_phy(pdev, 5, MII_M1111_PHY_EXT_SR)
|
||||
& (1<<13) ? 1:0),
|
||||
(read_switch_port_phy(pdev, 6, MII_M1111_PHY_EXT_SR)
|
||||
& (1<<13) ? 1:0));
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct phy_driver mv88e6176_phy_driver = {
|
||||
.name = "MV88E6176",
|
||||
.phy_id = MV_IDENT_VALUE,
|
||||
.phy_id_mask = MV_IDENT_MASK,
|
||||
.features = PHY_BASIC_FEATURES,
|
||||
.probe = &mv88e6176_probe,
|
||||
.remove = &mv88e6176_remove,
|
||||
.config_init = &mv88e6176_config_init,
|
||||
.config_aneg = &mv88e6176_config_aneg,
|
||||
.read_status = &mv88e6176_read_status,
|
||||
.driver = { .owner = THIS_MODULE },
|
||||
};
|
||||
|
||||
/*
|
||||
* I2C driver
|
||||
*/
|
||||
|
||||
/* See SFF-8472 */
|
||||
struct sfp_msa {
|
||||
/* Basic ID fields */
|
||||
u8 identifier;
|
||||
u8 ext_identifier;
|
||||
u8 connector;
|
||||
u8 transceiver[8];
|
||||
u8 encoding;
|
||||
u8 br_nominal;
|
||||
u8 rate_identifier;
|
||||
u8 length_smf_km;
|
||||
u8 length_smf;
|
||||
u8 length_om2;
|
||||
u8 length_om1;
|
||||
u8 length_om4;
|
||||
u8 length_om3;
|
||||
u8 vendor_name[16];
|
||||
u8 transceiver2;
|
||||
u8 vendor_oui[3];
|
||||
u8 vendor_pn[16];
|
||||
u8 vendor_rev[4];
|
||||
u8 wavelength[2];
|
||||
u8 resv1;
|
||||
u8 cc_base;
|
||||
|
||||
/* extended id fields */
|
||||
u8 options[2];
|
||||
u8 br_max;
|
||||
u8 br_min;
|
||||
u8 vendor_sn[16];
|
||||
u8 date_code[8];
|
||||
u8 diags_type;
|
||||
u8 enhanced_options;
|
||||
u8 sff8472_compliance;
|
||||
u8 cc_ext;
|
||||
|
||||
/* Vendor specific ID fields */
|
||||
u8 vendor_data[32];
|
||||
u8 sff8079[128];
|
||||
};
|
||||
|
||||
enum identifier {
|
||||
UNKNOWN,
|
||||
GBIC,
|
||||
SFF,
|
||||
SFP,
|
||||
XBI,
|
||||
XENPACK,
|
||||
XFP,
|
||||
XFF,
|
||||
XFP_E,
|
||||
XPAK,
|
||||
X2,
|
||||
DWDM_SFP,
|
||||
QSFP,
|
||||
MAX_ID,
|
||||
};
|
||||
|
||||
const char* id_names[] = {
|
||||
"UNKONWN",
|
||||
"GBIC",
|
||||
"SFF",
|
||||
"SFP",
|
||||
NULL,
|
||||
};
|
||||
|
||||
/* Flags for SFP modules compatible with ETH up to 1Gb */
|
||||
struct sfp_flags {
|
||||
u8 e1000_base_sx:1;
|
||||
u8 e1000_base_lx:1;
|
||||
u8 e1000_base_cx:1;
|
||||
u8 e1000_base_t:1;
|
||||
u8 e100_base_lx:1;
|
||||
u8 e100_base_fx:1;
|
||||
u8 e10_base_bx10:1;
|
||||
u8 e10_base_px:1;
|
||||
};
|
||||
|
||||
#define STRING_APPEND(str, src) \
|
||||
strncat(str, src, sizeof(src)); \
|
||||
for (i = 1; i < sizeof(str); i++) \
|
||||
if (str[i-1] == ' ' && str[i] == ' ') \
|
||||
str[i] = 0;
|
||||
|
||||
static int gw16083_read_port_sfp(struct i2c_client *client,
|
||||
struct mv88e1111_port_state *state)
|
||||
{
|
||||
int ret = 0;
|
||||
u8 data[256];
|
||||
struct sfp_flags *eth_flags;
|
||||
u8 crc;
|
||||
int i;
|
||||
u8 *str;
|
||||
struct sfp_msa *sfp_msa = (struct sfp_msa *)data;
|
||||
int port = state->port;
|
||||
union i2c_smbus_data d;
|
||||
|
||||
dev_dbg(&client->dev, "%s Port%d\n", __func__, port);
|
||||
if (!i2c_check_functionality(client->adapter,
|
||||
I2C_FUNC_SMBUS_READ_I2C_BLOCK))
|
||||
return -ENODEV;
|
||||
d.byte = (port == 5) ? 1 : 2;
|
||||
if (i2c_smbus_xfer(client->adapter, GW16083_I2C_ADDR_PCA9543,
|
||||
client->flags, I2C_SMBUS_WRITE, 0,
|
||||
I2C_SMBUS_BYTE_DATA, &d) < 0)
|
||||
{
|
||||
dev_err(&client->dev,
|
||||
"Port%d: failed writing PCA9543 register\n", port);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* read all 256 bytes of SFP EEPROM */
|
||||
for (i = 0; i < sizeof(data); i += I2C_SMBUS_BLOCK_MAX) {
|
||||
d.block[0] = I2C_SMBUS_BLOCK_MAX;
|
||||
if (i2c_smbus_xfer(client->adapter, GW16083_I2C_ADDR_SFP1,
|
||||
client->flags, I2C_SMBUS_READ, i,
|
||||
I2C_SMBUS_I2C_BLOCK_DATA, &d) < 0)
|
||||
{
|
||||
dev_err(&client->dev,
|
||||
"Port%d: failed reading SFP data\n", port);
|
||||
return ret;
|
||||
}
|
||||
memcpy(data + i, d.block + 1, I2C_SMBUS_BLOCK_MAX);
|
||||
}
|
||||
|
||||
/* Validate checksums */
|
||||
for (crc = 0, i = 0; i < 63; i++)
|
||||
crc += data[i];
|
||||
if (crc != sfp_msa->cc_base) {
|
||||
dev_err(&client->dev, "Port%d: "
|
||||
"Checksum failure for Base ID fields: 0x%02x\n", port,
|
||||
crc);
|
||||
#ifdef FAIL_ON_CHECKSUM_ERR
|
||||
return -EINVAL;
|
||||
#endif
|
||||
}
|
||||
for (crc = 0, i = 64; i < 95; i++)
|
||||
crc += data[i];
|
||||
if (crc != sfp_msa->cc_ext) {
|
||||
dev_err(&client->dev, "Port%d: "
|
||||
"Checksum failure for Extended ID fields: 0x%02x\n",
|
||||
port, crc);
|
||||
#ifdef FAIL_ON_CHECKSUM_ERR
|
||||
return -EINVAL;
|
||||
#endif
|
||||
}
|
||||
state->sfp_id[0] = 0;
|
||||
for (i = 0; id_names[i]; i++) {
|
||||
if (sfp_msa->identifier == i) {
|
||||
sprintf(state->sfp_id, "%s: ", id_names[i]);
|
||||
break;
|
||||
}
|
||||
}
|
||||
STRING_APPEND(state->sfp_id, sfp_msa->vendor_oui);
|
||||
STRING_APPEND(state->sfp_id, sfp_msa->vendor_name);
|
||||
STRING_APPEND(state->sfp_id, sfp_msa->vendor_pn);
|
||||
STRING_APPEND(state->sfp_id, sfp_msa->vendor_rev);
|
||||
STRING_APPEND(state->sfp_id, sfp_msa->vendor_sn);
|
||||
dev_info(&client->dev, "Port%d: %s\n", port, state->sfp_id);
|
||||
|
||||
if ((sfp_msa->identifier != GBIC) &&
|
||||
(sfp_msa->identifier != SFF) &&
|
||||
(sfp_msa->identifier != SFP))
|
||||
{
|
||||
dev_err(&client->dev, "Port%d: Unknown module identifier: %d\n",
|
||||
port, sfp_msa->identifier);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
str = "";
|
||||
eth_flags = (struct sfp_flags *)(sfp_msa->transceiver + 3);
|
||||
if (eth_flags->e1000_base_sx) {
|
||||
str = "1000Base-SX (Fiber)";
|
||||
} else if (eth_flags->e1000_base_lx) {
|
||||
str = "1000Base-LX (Fiber)";
|
||||
} else if (eth_flags->e1000_base_t) {
|
||||
str = "1000Base-T (Copper)";
|
||||
} else if (eth_flags->e100_base_fx) {
|
||||
str = "100Base-FX (Fiber) - not supported";
|
||||
ret = -EINVAL;
|
||||
} else {
|
||||
str = "Unknown/Unsupported media type";
|
||||
ret = -EINVAL;
|
||||
}
|
||||
if (ret)
|
||||
dev_err(&client->dev, "Port%d: %s (0x%02x)\n", port, str,
|
||||
sfp_msa->transceiver[3]);
|
||||
else
|
||||
dev_info(&client->dev, "Port%d: %s (0x%02x)\n", port, str,
|
||||
sfp_msa->transceiver[3]);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int gw16083_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
int ret;
|
||||
|
||||
dev_info(&client->dev, "GW16083 Ethernet Expansion Mezzanine\n");
|
||||
if (gw16083_client) {
|
||||
dev_err(&client->dev, "client already registered\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
gw16083_client = client;
|
||||
|
||||
ret = phy_driver_register(&mv88e6176_phy_driver);
|
||||
if (ret)
|
||||
dev_err(&client->dev,
|
||||
"failed to register mv88e6176 phy driver: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int gw16083_remove(struct i2c_client *client)
|
||||
{
|
||||
dev_dbg(&client->dev, "%s\n", __func__);
|
||||
|
||||
phy_driver_unregister(&mv88e6176_phy_driver);
|
||||
gw16083_client = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id gw16083_dt_ids[] = {
|
||||
{ .compatible = "gateworks,gw16083", },
|
||||
{ }
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(of, gw16083_dt_ids);
|
||||
|
||||
static const struct i2c_device_id gw16083_id[] = {
|
||||
{ "gw16083", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, gw16083_id);
|
||||
|
||||
static struct i2c_driver gw16083_driver = {
|
||||
.driver = {
|
||||
.name = "gw16083",
|
||||
.of_match_table = gw16083_dt_ids,
|
||||
},
|
||||
.probe = gw16083_probe,
|
||||
.remove = gw16083_remove,
|
||||
.id_table = gw16083_id,
|
||||
};
|
||||
|
||||
static int __init mv88e6176_init(void)
|
||||
{
|
||||
return i2c_add_driver(&gw16083_driver);
|
||||
}
|
||||
|
||||
static void __exit mv88e6176_exit(void)
|
||||
{
|
||||
i2c_del_driver(&gw16083_driver);
|
||||
}
|
||||
|
||||
module_init(mv88e6176_init);
|
||||
module_exit(mv88e6176_exit);
|
||||
@ -1,123 +0,0 @@
|
||||
/*
|
||||
* drivers/net/phy/mv88e6176.h
|
||||
*
|
||||
* Driver for Marvell Switch
|
||||
*
|
||||
* Author: Tim Harvey
|
||||
*
|
||||
* Copyright (c) 2014 Tim Harvey <tharvey@gateworks.com>
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _GW16083_H_
|
||||
#define _GW16083_H_
|
||||
|
||||
#define MII_MARVELL_PHY_PAGE 22
|
||||
|
||||
/*
|
||||
* I2C Addresses
|
||||
*/
|
||||
#define GW16083_I2C_ADDR_SFP1 0x50
|
||||
#define GW16083_I2C_ADDR_SFP2 0x51
|
||||
#define GW16083_I2C_ADDR_EEPROM 0x52
|
||||
#define GW16083_I2C_ADDR_PCA9543 0x70
|
||||
|
||||
/*
|
||||
* MV88E1111 PHY Registers
|
||||
*/
|
||||
enum {
|
||||
MII_M1111_PHY_CONTROL = 0,
|
||||
MII_M1111_PHY_STATUS = 1,
|
||||
MII_M1111_PHY_IDENT0 = 2,
|
||||
MII_M1111_PHY_IDENT1 = 3,
|
||||
MII_M1111_PHY_EXT_CR = 20,
|
||||
MII_M1111_PHY_LED_CONTROL = 24,
|
||||
MII_M1111_PHY_EXT_SR = 27,
|
||||
};
|
||||
|
||||
#define MII_M1111_PHY_ID_MASK 0xfffffff0
|
||||
#define MII_M1111_PHY_ID 0x01410cc0
|
||||
|
||||
#define MII_M1111_PHY_CONTROL_RESET (1 << 15)
|
||||
#define MII_M1111_PHY_LED_DIRECT 0x4100
|
||||
#define MII_M1111_PHY_LED_PULSE_STR 0x4111
|
||||
#define MII_M1111_PHY_LED_COMBINE 0x411c
|
||||
#define MII_M1111_RX_DELAY 0x80
|
||||
#define MII_M1111_TX_DELAY 0x2
|
||||
|
||||
/*
|
||||
* MV88E6176 Switch Registers
|
||||
*/
|
||||
|
||||
/* PHY Addrs */
|
||||
#define MV_BASE 0x10
|
||||
#define MV_GLOBAL1 0x1b
|
||||
#define MV_GLOBAL2 0x1c
|
||||
#define MV_GLOBAL3 0x1d
|
||||
|
||||
/* Global2 Registers */
|
||||
enum {
|
||||
MV_SMI_PHY_COMMAND = 0x18,
|
||||
MV_SMI_PHY_DATA = 0x19,
|
||||
MV_SCRATCH_MISC = 0x1A,
|
||||
};
|
||||
|
||||
/* Scratch And Misc Reg offsets */
|
||||
enum {
|
||||
MV_GPIO_MODE = 0x60,
|
||||
MV_GPIO_DIR = 0x62,
|
||||
MV_GPIO_DATA = 0x64,
|
||||
MV_GPIO76_CNTL = 0x6B,
|
||||
MV_GPIO54_CNTL = 0x6A,
|
||||
MV_GPIO32_CNTL = 0x69,
|
||||
MV_GPIO10_CNTL = 0x68,
|
||||
MV_CONFIG0 = 0x70,
|
||||
MV_CONFIG1 = 0x71,
|
||||
MV_CONFIG2 = 0x72,
|
||||
MV_CONFIG3 = 0x73,
|
||||
};
|
||||
|
||||
/* PHY Registers */
|
||||
enum {
|
||||
MV_PHY_CONTROL = 0x00,
|
||||
MV_PHY_STATUS = 0x01,
|
||||
MV_PHY_IDENT0 = 0x02,
|
||||
MV_PHY_IDENT1 = 0x03,
|
||||
MV_PHY_ANEG = 0x04,
|
||||
MV_PHY_LINK_ABILITY = 0x05,
|
||||
MV_PHY_ANEG_EXPAND = 0x06,
|
||||
MV_PHY_XMIT_NEXTP = 0x07,
|
||||
MV_PHY_LINK_NEXTP = 0x08,
|
||||
MV_PHY_CONTROL1 = 0x10,
|
||||
MV_PHY_STATUS1 = 0x11,
|
||||
MV_PHY_INTR_EN = 0x12,
|
||||
};
|
||||
|
||||
/* Port Registers */
|
||||
enum {
|
||||
MV_PORT_STATUS = 0x00,
|
||||
MV_PORT_PHYS_CONTROL = 0x01,
|
||||
MV_PORT_IDENT = 0x03,
|
||||
MV_PORT_CONTROL = 0x04,
|
||||
MV_PORT_VLANMAP = 0x06,
|
||||
MV_PORT_ASSOC = 0x0b,
|
||||
MV_PORT_RXCOUNT = 0x10,
|
||||
MV_PORT_TXCOUNT = 0x11,
|
||||
};
|
||||
|
||||
#define SMIBUSY (1<<15)
|
||||
#define SMIMODE22 (1<<12)
|
||||
#define SMIOP_READ (2<<10)
|
||||
#define SMIOP_WRITE (1<<10)
|
||||
#define DEVADDR 5
|
||||
#define REGADDR 0
|
||||
|
||||
#define MV_IDENT_MASK 0x0000fff0
|
||||
#define MV_IDENT_VALUE 0x00001760
|
||||
|
||||
#endif /* _GW16083_H_ */
|
||||
Loading…
Reference in New Issue
Block a user