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imx6: kernel: add GW16083 Ethernet Expansion Mezzanine support

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The GW16083 Ethernet Expansion Mezzanine adds the following to supported
Gateworks baseboards:
 * 7-port Ethernet Switch
  * 4x RJ45 ports (ENET1-4) supporing 802.11af/at PoE (with optional PoE module)
  * 2x RJ45 ports or SFP module (ENET5-6) (auto-selected)

This series adds support for a phy driver that adds support for ENET5/ENET6
PHY adding initialization for those PHY's and a polling mechanism that detects
SFP insertion and configuration.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

SVN-Revision: 42147
This commit is contained in:
Luka Perkov 2014-08-11 20:35:10 +00:00
parent 9d826428b7
commit dcacd65281
10 changed files with 1862 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
package/kernel/linux/modules/netdevices.mk
View file

@ -129,6 +129,24 @@ endef
$(eval $(call KernelPackage,et131x))
define KernelPackage/gw16083
SUBMENU:=$(NETWORK_DEVICES_MENU)
TITLE:=Gateworks Ventana Ethernet Expansion Mezzanine driver
URL:=http://www.gateworks.com
FILES:=$(LINUX_DIR)/drivers/net/phy/gw16083.ko
KCONFIG:=CONFIG_GATEWORKS_GW16083
DEPENDS:=@TARGET_imx6 @PCI_SUPPORT +kmod-libphy +kmod-igb
AUTOLOAD:=$(call AutoLoad,36,gw16083)
endef
define KernelPackage/gw16083/description
This package contains the gw16083 kernel module for supporting the Gateworks
Ventana Ethernet Expansion Mezzanine.
endef
$(eval $(call KernelPackage,gw16083))
define KernelPackage/swconfig
SUBMENU:=$(NETWORK_DEVICES_MENU)
TITLE:=switch configuration API

1
target/linux/generic/config-3.14
View file

@ -907,6 +907,7 @@ CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_EPOLL=y
# CONFIG_EQUALIZER is not set
# CONFIG_ET131X is not set
# CONFIG_GATEWORKS_GW16083 is not set
# CONFIG_ETH16I is not set
CONFIG_ETHERNET=y
# CONFIG_ETHOC is not set

949
target/linux/imx6/files-3.14/drivers/net/phy/gw16083.c Normal file
View file

@ -0,0 +1,949 @@
/*
* drivers/net/phy/gw16083.c
*
* Driver for GW16083 Ventana Ethernet Expansion Mezzanine
*
* 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.
*
*/
/*
* The GW16083 interfaces with a Ventana baseboard via the PCIe bus, an i2c
* bus (i2c2), and a couple of GPIO's. On the PCIe bus is an i210 GigE with
* its MAC connected to Port4 of a Marvell MV88E6176 7-port GigE switch via
* MDIO and RGMII. Ports 0-3 are standard copper RJ45 but Ports 5 and 6
* connect to Marvell MV88E1111 dual-mode Copper/Fiber PHY's over SGMII and
* MDIO. The PHY's have both an RG45 for copper and an SFP module.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/unistd.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/device.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/marvell_phy.h>
#include <linux/of_platform.h>
#include <linux/io.h>
#include <asm/irq.h>
#include <linux/uaccess.h>
#include "gw16083.h"
#undef FAIL_ON_CHECKSUM_ERR /* fail to configure SFP if checksum bad */
#define PORT_POWER_CONTROL /* ports can be enabled/disabled via sysfs */
#define PORT_MODE_CONTROL /* ports 5/6 can have SFP/RJ45 mode forced */
MODULE_DESCRIPTION("GW16083 driver");
MODULE_AUTHOR("Tim Harvey");
MODULE_LICENSE("GPL");
struct mv88e1111_port_state {
int port;
bool present;
bool serdes;
bool sfp_signal;
bool sfp_present;
bool sfp_compat;
bool sfp_enabled;
char sfp_id[64];
};
struct mv88e1111_priv {
struct phy_device *phydev;
struct i2c_client *client;
struct mv88e1111_port_state port5;
struct mv88e1111_port_state port6;
struct kobject *sysfs_kobj;
};
enum {
mode_copper = 0,
mode_serdes = 1,
};
static struct i2c_client *gw16083_client = NULL;
static int gw16083_read_port_sfp(struct i2c_client *client,
struct mv88e1111_port_state *state);
/* read switch port register from port0-6 */
u16 read_switch_port(struct phy_device *pdev, int port, u8 regaddr)
{
return pdev->bus->read(pdev->bus, MV_BASE + port, regaddr);
}
/* write switch port register to port0-6 */
int write_switch_port(struct phy_device *pdev, int port, u8 regaddr, u16 val)
{
return pdev->bus->write(pdev->bus, MV_BASE + port, regaddr, val);
}
/*
* read_switch_port_phy - write a register for a specific port on 88E6176
* The 88E6176 PHY registers must be accessed thorugh the Global2 address
* using the SMI_PHY_COMMAND_REG and SMI_PHY_DATA_REG.
*/
int read_switch_port_phy(struct phy_device *pdev, int port, u8 regaddr)
{
u16 reg;
int i;
dev_dbg(&pdev->dev, "read_phy: port%d reg=0x%02x\n", port, regaddr);
reg = SMIBUSY | SMIMODE22 | SMIOP_READ;
reg |= port << DEVADDR;
reg |= regaddr << REGADDR;
pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SMI_PHY_COMMAND, reg);
for (i = 0; i < 10; i++) {
reg = pdev->bus->read(pdev->bus, MV_GLOBAL2,
MV_SMI_PHY_COMMAND);
if (!(reg & (1<<15)))
break;
mdelay(1);
}
/* timeout */
if (i == 10)
return 0xffff;
reg = pdev->bus->read(pdev->bus, MV_GLOBAL2, MV_SMI_PHY_DATA);
return reg;
}
/*
* write_switch_port_phy - write a register for a specific port on 88E6176
* The 88E6176 PHY registers must be accessed thorugh the Global2 address
* using the SMI_PHY_COMMAND_REG and SMI_PHY_DATA_REG.
*/
int write_switch_port_phy(struct phy_device *pdev, int port, u8 addr, u16 reg)
{
int i;
dev_dbg(&pdev->dev, "write_phy: port%d reg=0x%02x val=0x%04x\n", port,
addr, reg);
pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SMI_PHY_DATA, reg);
reg = SMIBUSY | SMIMODE22 | SMIOP_WRITE;
reg |= port << DEVADDR;
reg |= addr << REGADDR;
pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SMI_PHY_COMMAND, reg);
for (i = 0; i < 10; i++) {
reg = pdev->bus->read(pdev->bus, MV_GLOBAL2,
MV_SMI_PHY_COMMAND);
if (!(reg & (1<<15)))
break;
mdelay(1);
}
/* timeout */
if (i == 10)
return -ETIMEDOUT;
return 0;
}
/* read a scratch register from switch */
inline u8 read_switch_scratch(struct phy_device *pdev, u8 reg)
{
pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SCRATCH_MISC, (reg << 8));
return pdev->bus->read(pdev->bus, MV_GLOBAL2, MV_SCRATCH_MISC) & 0xff;
}
/* write a scratch register to switch */
inline void write_switch_scratch(struct phy_device *pdev, u8 reg, u8 val)
{
pdev->bus->write(pdev->bus, MV_GLOBAL2, MV_SCRATCH_MISC,
(1 << 15) | (reg << 8) | val);
}
/* enable or disable an SFP's TXEN signal */
static int enable_sfp_txen(struct phy_device *pdev, int port, bool enable)
{
u8 gpio;
int bit;
if (port != 5 && port != 6)
return -EINVAL;
/* GPIO[2:1] output low to enable TXEN */
bit = (port == 5) ? 1 : 2;
gpio = read_switch_scratch(pdev, MV_GPIO_DATA);
if (enable)
gpio |= (1 << bit);
else
gpio &= (1 << bit);
write_switch_scratch(pdev, MV_GPIO_DATA, gpio);
dev_info(&pdev->dev, "Port%d: SFP TX %s\n", port, enable ?
"enabled" : "disabled");
return 0;
}
/* configure mv88e1111 port for copper or serdes
* For Copper we set auto link/duplex/speed detection
* For SerDes/Fiber we force 1000mbps link up and auto-neg duplex
*/
static int config_mv88e1111_port_sfp(struct phy_device *pdev, int port,
bool sfp)
{
u16 reg;
if (port != 5 && port != 6)
return -EINVAL;
dev_dbg(&pdev->dev, "%s: Port%d %s\n", __func__, port,
sfp ? "SFP" : "copper");
if (sfp) {
enable_sfp_txen(pdev, port, 1);
/* configure MV88E6176 Physical Control Port Register */
dev_info(&pdev->dev,
"Port%d: SFP: force 1000mbps link up "
"(auto-negotiate duplex)\n",
port);
reg = read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL);
reg &= ~0x3f; /* clear 5-0 */
reg |= (1 << 4) | (1 << 5); /* force link up */
reg |= 2; /* force 1000mbps */
write_switch_port(pdev, port, MV_PORT_PHYS_CONTROL, reg);
reg = read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL);
}
/* copper */
else {
enable_sfp_txen(pdev, port, 0);
/* configure MV88E6176 Physical Control Port Register */
dev_info(&pdev->dev,
"Port%d: Copper: set auto-neg link/duplex/speed\n",
port);
reg = read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL);
reg &= ~0x3f; /* clear 5-0 */
reg |= 3; /* speed not forced */
write_switch_port(pdev, port, MV_PORT_PHYS_CONTROL, reg);
reg = read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL);
}
dev_dbg(&pdev->dev, "%s: Port%d %s PORT_PHYS_CONTROL=0x%04x\n",
__func__, port, sfp ? "SFP" : "copper",
read_switch_port(pdev, port, MV_PORT_PHYS_CONTROL));
return 0;
}
#if defined(PORT_POWER_CONTROL)
static int enable_switch_port(struct phy_device *pdev, int port, bool enable)
{
struct mv88e1111_priv *priv = dev_get_drvdata(&pdev->dev);
u16 reg;
/* power up port */
dev_info(&priv->client->dev, "Port%d: %s\n", port,
enable ? "normal operation" : "power down");
reg = read_switch_port_phy(pdev, port, MV_PHY_CONTROL);
if (enable)
reg &= ~(1 << 11); /* Normal Operation */
else
reg |= (1 << 11); /* power down */
write_switch_port_phy(pdev, port, MV_PHY_CONTROL, reg);
reg = read_switch_port_phy(pdev, port, MV_PHY_CONTROL1);
if (enable)
reg &= ~(1 << 2); /* Normal Operation */
else
reg |= (1 << 2); /* power down */
write_switch_port_phy(pdev, port, MV_PHY_CONTROL1, reg);
return 0;
}
#endif
/*
* Sysfs API
*/
struct mv88e1111_port_state *get_port_state(struct mv88e1111_priv *priv,
int port)
{
if (port == 5)
return &priv->port5;
if (port == 6)
return &priv->port6;
return NULL;
}
/*
* get MV88E6176 port number for a specific GW16083 port name
* The GW16083 ports as shown on the silkscreen are not mapped according to
* the MV88E6176 ports numbers.
*/
static int gw16083_get_port(const char* name)
{
int i;
int map[] = { 3, 2, 1, 0, 5, 6 };
if (strncasecmp(name, "ETHERNET", 8) != 0 || strlen(name) != 9)
return -1;
i = name[8] - '0';
if (i < 1 || i > 6)
return -1;
return map[i-1];
}
static ssize_t port_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct mv88e1111_priv *priv = dev_get_drvdata(dev);
int port = -1;
u16 reg;
if (sscanf(attr->attr.name, "port%d", &port) != 1)
return 0;
if (port < 0 || port > 6)
return 0;
reg = read_switch_port_phy(priv->phydev, port, MV_PHY_CONTROL);
return sprintf(buf, "%s\n", (reg & (1 << 11)) ? "disabled" : "enabled");
}
#if defined(PORT_POWER_CONTROL)
static ssize_t port_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct mv88e1111_priv *priv = dev_get_drvdata(dev);
int port = -1;
int val;
port = gw16083_get_port(attr->attr.name);
if (port < 0)
return 0;
if (sscanf(buf, "%d", &val) != 1)
return 0;
enable_switch_port(priv->phydev, port, val ? 1 : 0);
return count;
}
static DEVICE_ATTR(ethernet1, S_IWUSR | S_IRUGO, port_show, port_store);
static DEVICE_ATTR(ethernet2, S_IWUSR | S_IRUGO, port_show, port_store);
static DEVICE_ATTR(ethernet3, S_IWUSR | S_IRUGO, port_show, port_store);
static DEVICE_ATTR(ethernet4, S_IWUSR | S_IRUGO, port_show, port_store);
static DEVICE_ATTR(ethernet5, S_IWUSR | S_IRUGO, port_show, port_store);
static DEVICE_ATTR(ethernet6, S_IWUSR | S_IRUGO, port_show, port_store);
#else
static DEVICE_ATTR(ethernet1, S_IRUGO, port_show, NULL);
static DEVICE_ATTR(ethernet2, S_IRUGO, port_show, NULL);
static DEVICE_ATTR(ethernet3, S_IRUGO, port_show, NULL);
static DEVICE_ATTR(ethernet4, S_IRUGO, port_show, NULL);
static DEVICE_ATTR(ethernet5, S_IRUGO, port_show, NULL);
static DEVICE_ATTR(ethernet6, S_IRUGO, port_show, NULL);
#endif
static ssize_t portsfp_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct mv88e1111_priv *priv = dev_get_drvdata(dev);
struct mv88e1111_port_state *state;
state = get_port_state(priv, gw16083_get_port(attr->attr.name));
if (!state)
return 0;
if (!state->sfp_present)
return 0;
return sprintf(buf, "%s\n", state->sfp_id);
}
static ssize_t portmode_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct mv88e1111_priv *priv = dev_get_drvdata(dev);
struct mv88e1111_port_state *state;
state = get_port_state(priv, gw16083_get_port(attr->attr.name));
if (!state)
return 0;
return sprintf(buf, "%s\n", state->serdes ? "SFP" : "RJ45");
}
static DEVICE_ATTR(ethernet5_sfp, S_IRUGO, portsfp_show, NULL);
static DEVICE_ATTR(ethernet6_sfp, S_IRUGO, portsfp_show, NULL);
#ifdef PORT_MODE_CONTROL
static ssize_t portmode_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct mv88e1111_priv *priv = dev_get_drvdata(dev);
struct mv88e1111_port_state *state;
u16 reg;
int port;
port = gw16083_get_port(attr->attr.name);
state = get_port_state(priv, port);
if (!state)
return 0;
reg = read_switch_port_phy(priv->phydev, port, MII_M1111_PHY_EXT_SR);
if (strcasecmp(buf, "auto") == 0) {
reg &= ~(1<<15); /* enable auto-selection */
dev_info(&priv->client->dev, "Port%d: enable auto-selection\n",
port);
} else if (strcasecmp(buf, "RJ45") == 0) {
reg |= (1<<15); /* disable auto-selection */
reg |= 0xb; /* RGMII to Copper */
config_mv88e1111_port_sfp(priv->phydev, port, 0);
dev_info(&priv->client->dev, "Port%d: select RJ45\n", port);
} else if (strcasecmp(buf, "SFP") == 0) {
reg |= (1<<15); /* disable auto-selection */
reg |= 0x3; /* RGMII to Fiber */
config_mv88e1111_port_sfp(priv->phydev, port, 1);
dev_info(&priv->client->dev, "Port%d: select SFP\n", port);
}
write_switch_port_phy(priv->phydev, port, MII_M1111_PHY_EXT_SR, reg);
return count;
}
static DEVICE_ATTR(ethernet5_mode, S_IWUSR | S_IRUGO, portmode_show,
portmode_store);
static DEVICE_ATTR(ethernet6_mode, S_IWUSR | S_IRUGO, portmode_show,
portmode_store);
#else
static DEVICE_ATTR(ethernet5_mode, S_IRUGO, portmode_show, NULL);
static DEVICE_ATTR(ethernet6_mode, S_IRUGO, portmode_show, NULL);
#endif
/*
* PHY driver
*/
static int
mv88e6176_config_init(struct phy_device *pdev)
{
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);

123
target/linux/imx6/files-3.14/drivers/net/phy/gw16083.h Normal file
View file

@ -0,0 +1,123 @@
/*
* 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_ */

129
target/linux/imx6/patches-3.14/202-net-igb-add-i210-i211-support-for-phy-read-write.patch Normal file
View file

@ -0,0 +1,129 @@
Author: Tim Harvey <tharvey@gateworks.com>
Date: Thu May 15 00:12:26 2014 -0700
net: igb: add i210/i211 support for phy read/write
The i210/i211 uses the MDICNFG register for the phy address instead of the
MDIC register.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
@@ -139,7 +139,7 @@ out:
s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data)
{
struct e1000_phy_info *phy = &hw->phy;
- u32 i, mdic = 0;
+ u32 i, mdicnfg, mdic = 0;
s32 ret_val = 0;
if (offset > MAX_PHY_REG_ADDRESS) {
@@ -152,11 +152,25 @@ s32 igb_read_phy_reg_mdic(struct e1000_h
* Control register. The MAC will take care of interfacing with the
* PHY to retrieve the desired data.
*/
- mdic = ((offset << E1000_MDIC_REG_SHIFT) |
- (phy->addr << E1000_MDIC_PHY_SHIFT) |
- (E1000_MDIC_OP_READ));
+ switch (hw->mac.type) {
+ case e1000_i210:
+ case e1000_i211:
+ mdicnfg = rd32(E1000_MDICNFG);
+ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
+ mdicnfg |= (phy->addr << E1000_MDICNFG_PHY_SHIFT);
+ wr32(E1000_MDICNFG, mdicnfg);
+ mdic = ((offset << E1000_MDIC_REG_SHIFT) |
+ (E1000_MDIC_OP_READ));
+ break;
+ default:
+ mdic = ((offset << E1000_MDIC_REG_SHIFT) |
+ (phy->addr << E1000_MDIC_PHY_SHIFT) |
+ (E1000_MDIC_OP_READ));
+ break;
+ }
wr32(E1000_MDIC, mdic);
+ wrfl();
/* Poll the ready bit to see if the MDI read completed
* Increasing the time out as testing showed failures with
@@ -181,6 +195,18 @@ s32 igb_read_phy_reg_mdic(struct e1000_h
*data = (u16) mdic;
out:
+ switch (hw->mac.type) {
+ /* restore MDICNFG to have phy's addr */
+ case e1000_i210:
+ case e1000_i211:
+ mdicnfg = rd32(E1000_MDICNFG);
+ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
+ mdicnfg |= (hw->phy.addr << E1000_MDICNFG_PHY_SHIFT);
+ wr32(E1000_MDICNFG, mdicnfg);
+ break;
+ default:
+ break;
+ }
return ret_val;
}
@@ -195,7 +221,7 @@ out:
s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data)
{
struct e1000_phy_info *phy = &hw->phy;
- u32 i, mdic = 0;
+ u32 i, mdicnfg, mdic = 0;
s32 ret_val = 0;
if (offset > MAX_PHY_REG_ADDRESS) {
@@ -208,12 +234,27 @@ s32 igb_write_phy_reg_mdic(struct e1000_
* Control register. The MAC will take care of interfacing with the
* PHY to retrieve the desired data.
*/
- mdic = (((u32)data) |
- (offset << E1000_MDIC_REG_SHIFT) |
- (phy->addr << E1000_MDIC_PHY_SHIFT) |
- (E1000_MDIC_OP_WRITE));
+ switch (hw->mac.type) {
+ case e1000_i210:
+ case e1000_i211:
+ mdicnfg = rd32(E1000_MDICNFG);
+ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
+ mdicnfg |= (phy->addr << E1000_MDICNFG_PHY_SHIFT);
+ wr32(E1000_MDICNFG, mdicnfg);
+ mdic = (((u32)data) |
+ (offset << E1000_MDIC_REG_SHIFT) |
+ (E1000_MDIC_OP_WRITE));
+ break;
+ default:
+ mdic = (((u32)data) |
+ (offset << E1000_MDIC_REG_SHIFT) |
+ (phy->addr << E1000_MDIC_PHY_SHIFT) |
+ (E1000_MDIC_OP_WRITE));
+ break;
+ }
wr32(E1000_MDIC, mdic);
+ wrfl();
/* Poll the ready bit to see if the MDI read completed
* Increasing the time out as testing showed failures with
@@ -237,6 +278,18 @@ s32 igb_write_phy_reg_mdic(struct e1000_
}
out:
+ switch (hw->mac.type) {
+ /* restore MDICNFG to have phy's addr */
+ case e1000_i210:
+ case e1000_i211:
+ mdicnfg = rd32(E1000_MDICNFG);
+ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
+ mdicnfg |= (hw->phy.addr << E1000_MDICNFG_PHY_SHIFT);
+ wr32(E1000_MDICNFG, mdicnfg);
+ break;
+ default:
+ break;
+ }
return ret_val;
}

255
target/linux/imx6/patches-3.14/203-net-igb-add-phy-read-write-functions-that-accept-phy.patch Normal file
View file

@ -0,0 +1,255 @@
Author: Tim Harvey <tharvey@gateworks.com>
Date: Thu May 15 00:29:18 2014 -0700
net: igb: add phy read/write functions that accept phy addr
Add igb_write_reg_gs40g/igb_read_reg_gs40g that can be passed a phy address.
The existing igb_write_phy_reg_gs40g/igb_read_phy_reg_gs40g become wrappers
to this function.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -2142,7 +2142,7 @@ static s32 igb_read_phy_reg_82580(struct
if (ret_val)
goto out;
- ret_val = igb_read_phy_reg_mdic(hw, offset, data);
+ ret_val = igb_read_phy_reg_mdic(hw, hw->phy.addr, offset, data);
hw->phy.ops.release(hw);
@@ -2167,7 +2167,7 @@ static s32 igb_write_phy_reg_82580(struc
if (ret_val)
goto out;
- ret_val = igb_write_phy_reg_mdic(hw, offset, data);
+ ret_val = igb_write_phy_reg_mdic(hw, hw->phy.addr, offset, data);
hw->phy.ops.release(hw);
--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
@@ -136,9 +136,8 @@ out:
* Reads the MDI control regsiter in the PHY at offset and stores the
* information read to data.
**/
-s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data)
+s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u8 addr, u32 offset, u16 *data)
{
- struct e1000_phy_info *phy = &hw->phy;
u32 i, mdicnfg, mdic = 0;
s32 ret_val = 0;
@@ -157,14 +156,14 @@ s32 igb_read_phy_reg_mdic(struct e1000_h
case e1000_i211:
mdicnfg = rd32(E1000_MDICNFG);
mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
- mdicnfg |= (phy->addr << E1000_MDICNFG_PHY_SHIFT);
+ mdicnfg |= (addr << E1000_MDICNFG_PHY_SHIFT);
wr32(E1000_MDICNFG, mdicnfg);
mdic = ((offset << E1000_MDIC_REG_SHIFT) |
(E1000_MDIC_OP_READ));
break;
default:
mdic = ((offset << E1000_MDIC_REG_SHIFT) |
- (phy->addr << E1000_MDIC_PHY_SHIFT) |
+ (addr << E1000_MDIC_PHY_SHIFT) |
(E1000_MDIC_OP_READ));
break;
}
@@ -218,9 +217,8 @@ out:
*
* Writes data to MDI control register in the PHY at offset.
**/
-s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data)
+s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u8 addr, u32 offset, u16 data)
{
- struct e1000_phy_info *phy = &hw->phy;
u32 i, mdicnfg, mdic = 0;
s32 ret_val = 0;
@@ -239,7 +237,7 @@ s32 igb_write_phy_reg_mdic(struct e1000_
case e1000_i211:
mdicnfg = rd32(E1000_MDICNFG);
mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
- mdicnfg |= (phy->addr << E1000_MDICNFG_PHY_SHIFT);
+ mdicnfg |= (addr << E1000_MDICNFG_PHY_SHIFT);
wr32(E1000_MDICNFG, mdicnfg);
mdic = (((u32)data) |
(offset << E1000_MDIC_REG_SHIFT) |
@@ -248,7 +246,7 @@ s32 igb_write_phy_reg_mdic(struct e1000_
default:
mdic = (((u32)data) |
(offset << E1000_MDIC_REG_SHIFT) |
- (phy->addr << E1000_MDIC_PHY_SHIFT) |
+ (addr << E1000_MDIC_PHY_SHIFT) |
(E1000_MDIC_OP_WRITE));
break;
}
@@ -539,7 +537,7 @@ s32 igb_read_phy_reg_igp(struct e1000_hw
goto out;
if (offset > MAX_PHY_MULTI_PAGE_REG) {
- ret_val = igb_write_phy_reg_mdic(hw,
+ ret_val = igb_write_phy_reg_mdic(hw, hw->phy.addr,
IGP01E1000_PHY_PAGE_SELECT,
(u16)offset);
if (ret_val) {
@@ -548,8 +546,8 @@ s32 igb_read_phy_reg_igp(struct e1000_hw
}
}
- ret_val = igb_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
- data);
+ ret_val = igb_read_phy_reg_mdic(hw, hw->phy.addr,
+ MAX_PHY_REG_ADDRESS & offset, data);
hw->phy.ops.release(hw);
@@ -578,7 +576,7 @@ s32 igb_write_phy_reg_igp(struct e1000_h
goto out;
if (offset > MAX_PHY_MULTI_PAGE_REG) {
- ret_val = igb_write_phy_reg_mdic(hw,
+ ret_val = igb_write_phy_reg_mdic(hw, hw->phy.addr,
IGP01E1000_PHY_PAGE_SELECT,
(u16)offset);
if (ret_val) {
@@ -587,8 +585,8 @@ s32 igb_write_phy_reg_igp(struct e1000_h
}
}
- ret_val = igb_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
- data);
+ ret_val = igb_write_phy_reg_mdic(hw, hw->phy.addr,
+ MAX_PHY_REG_ADDRESS & offset, data);
hw->phy.ops.release(hw);
@@ -2554,8 +2552,9 @@ out:
}
/**
- * igb_write_phy_reg_gs40g - Write GS40G PHY register
+ * igb_write_reg_gs40g - Write GS40G PHY register
* @hw: pointer to the HW structure
+ * @addr: phy address to write to
* @offset: lower half is register offset to write to
* upper half is page to use.
* @data: data to write at register offset
@@ -2563,7 +2562,7 @@ out:
* Acquires semaphore, if necessary, then writes the data to PHY register
* at the offset. Release any acquired semaphores before exiting.
**/
-s32 igb_write_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 data)
+s32 igb_write_reg_gs40g(struct e1000_hw *hw, u8 addr, u32 offset, u16 data)
{
s32 ret_val;
u16 page = offset >> GS40G_PAGE_SHIFT;
@@ -2573,10 +2572,10 @@ s32 igb_write_phy_reg_gs40g(struct e1000
if (ret_val)
return ret_val;
- ret_val = igb_write_phy_reg_mdic(hw, GS40G_PAGE_SELECT, page);
+ ret_val = igb_write_phy_reg_mdic(hw, addr, GS40G_PAGE_SELECT, page);
if (ret_val)
goto release;
- ret_val = igb_write_phy_reg_mdic(hw, offset, data);
+ ret_val = igb_write_phy_reg_mdic(hw, addr, offset, data);
release:
hw->phy.ops.release(hw);
@@ -2584,8 +2583,24 @@ release:
}
/**
- * igb_read_phy_reg_gs40g - Read GS40G PHY register
+ * igb_write_phy_reg_gs40g - Write GS40G PHY register
+ * @hw: pointer to the HW structure
+ * @offset: lower half is register offset to write to
+ * upper half is page to use.
+ * @data: data to write at register offset
+ *
+ * Acquires semaphore, if necessary, then writes the data to PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+s32 igb_write_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 data)
+{
+ return igb_write_reg_gs40g(hw, hw->phy.addr, offset, data);
+}
+
+/**
+ * igb_read_reg_gs40g - Read GS40G PHY register
* @hw: pointer to the HW structure
+ * @addr: phy address to read from
* @offset: lower half is register offset to read to
* upper half is page to use.
* @data: data to read at register offset
@@ -2593,7 +2608,7 @@ release:
* Acquires semaphore, if necessary, then reads the data in the PHY register
* at the offset. Release any acquired semaphores before exiting.
**/
-s32 igb_read_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 *data)
+s32 igb_read_reg_gs40g(struct e1000_hw *hw, u8 addr, u32 offset, u16 *data)
{
s32 ret_val;
u16 page = offset >> GS40G_PAGE_SHIFT;
@@ -2603,10 +2618,10 @@ s32 igb_read_phy_reg_gs40g(struct e1000_
if (ret_val)
return ret_val;
- ret_val = igb_write_phy_reg_mdic(hw, GS40G_PAGE_SELECT, page);
+ ret_val = igb_write_phy_reg_mdic(hw, addr, GS40G_PAGE_SELECT, page);
if (ret_val)
goto release;
- ret_val = igb_read_phy_reg_mdic(hw, offset, data);
+ ret_val = igb_read_phy_reg_mdic(hw, addr, offset, data);
release:
hw->phy.ops.release(hw);
@@ -2614,6 +2629,21 @@ release:
}
/**
+ * igb_read_phy_reg_gs40g - Read GS40G PHY register
+ * @hw: pointer to the HW structure
+ * @offset: lower half is register offset to read to
+ * upper half is page to use.
+ * @data: data to read at register offset
+ *
+ * Acquires semaphore, if necessary, then reads the data in the PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+s32 igb_read_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 *data)
+{
+ return igb_read_reg_gs40g(hw, hw->phy.addr, offset, data);
+}
+
+/**
* igb_set_master_slave_mode - Setup PHY for Master/slave mode
* @hw: pointer to the HW structure
*
--- a/drivers/net/ethernet/intel/igb/e1000_phy.h
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.h
@@ -65,8 +65,8 @@ s32 igb_phy_has_link(struct e1000_hw *h
void igb_power_up_phy_copper(struct e1000_hw *hw);
void igb_power_down_phy_copper(struct e1000_hw *hw);
s32 igb_phy_init_script_igp3(struct e1000_hw *hw);
-s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data);
-s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data);
+s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u8 addr, u32 offset, u16 *data);
+s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u8 addr, u32 offset, u16 data);
s32 igb_read_phy_reg_i2c(struct e1000_hw *hw, u32 offset, u16 *data);
s32 igb_write_phy_reg_i2c(struct e1000_hw *hw, u32 offset, u16 data);
s32 igb_read_sfp_data_byte(struct e1000_hw *hw, u16 offset, u8 *data);
@@ -77,6 +77,8 @@ s32 igb_phy_force_speed_duplex_82580(st
s32 igb_get_cable_length_82580(struct e1000_hw *hw);
s32 igb_read_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 *data);
s32 igb_write_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 data);
+s32 igb_read_reg_gs40g(struct e1000_hw *hw, u8 addr, u32 offset, u16 *data);
+s32 igb_write_reg_gs40g(struct e1000_hw *hw, u8 addr, u32 offset, u16 data);
s32 igb_check_polarity_m88(struct e1000_hw *hw);
/* IGP01E1000 Specific Registers */

303
target/linux/imx6/patches-3.14/204-net-igb-register-mii_bus-for-SerDes-w-external-phy.patch Normal file
View file

@ -0,0 +1,303 @@
Author: Tim Harvey <tharvey@gateworks.com>
Date: Thu May 15 12:36:23 2014 -0700
net: igb: register mii_bus for SerDes w/ external phy
If an i210 is configured for 1000BASE-BX link_mode and has an external phy
specified, then register an mii bus using the external phy address as
a mask.
An i210 hooked to an external standard phy will be configured with a link_mo
of SGMII in which case phy ops will be configured and used internall in the
igb driver for link status. However, in certain cases one might be using a
backplane SerDes connection to something that talks on the mdio bus but is
not a standard phy, such as a switch. In this case by registering an mdio
bus a phy driver can manage the device.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -606,13 +606,25 @@ static s32 igb_get_invariants_82575(stru
switch (link_mode) {
case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX:
hw->phy.media_type = e1000_media_type_internal_serdes;
+ if (igb_sgmii_uses_mdio_82575(hw)) {
+ u32 mdicnfg = rd32(E1000_MDICNFG);
+ mdicnfg &= E1000_MDICNFG_PHY_MASK;
+ hw->phy.addr = mdicnfg >> E1000_MDICNFG_PHY_SHIFT;
+ hw_dbg("1000BASE_KX w/ external MDIO device at 0x%x\n",
+ hw->phy.addr);
+ } else {
+ hw_dbg("1000BASE_KX");
+ }
break;
case E1000_CTRL_EXT_LINK_MODE_SGMII:
/* Get phy control interface type set (MDIO vs. I2C)*/
if (igb_sgmii_uses_mdio_82575(hw)) {
hw->phy.media_type = e1000_media_type_copper;
dev_spec->sgmii_active = true;
+ hw_dbg("SGMII with external MDIO PHY");
break;
+ } else {
+ hw_dbg("SGMII with external I2C PHY");
}
/* fall through for I2C based SGMII */
case E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES:
@@ -629,8 +641,11 @@ static s32 igb_get_invariants_82575(stru
hw->phy.media_type = e1000_media_type_copper;
dev_spec->sgmii_active = true;
}
+ hw_dbg("SERDES with external SFP");
break;
+ } else {
+ hw_dbg("SERDES");
}
/* do not change link mode for 100BaseFX */
--- a/drivers/net/ethernet/intel/igb/e1000_hw.h
+++ b/drivers/net/ethernet/intel/igb/e1000_hw.h
@@ -32,6 +32,7 @@
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/netdevice.h>
+#include <linux/phy.h>
#include "e1000_regs.h"
#include "e1000_defines.h"
@@ -553,6 +554,12 @@ struct e1000_hw {
struct e1000_mbx_info mbx;
struct e1000_host_mng_dhcp_cookie mng_cookie;
+#ifdef CONFIG_PHYLIB
+ /* Phylib and MDIO interface */
+ struct mii_bus *mii_bus;
+ struct phy_device *phy_dev;
+ phy_interface_t phy_interface;
+#endif
union {
struct e1000_dev_spec_82575 _82575;
} dev_spec;
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -45,6 +45,7 @@
#include <linux/if_vlan.h>
#include <linux/pci.h>
#include <linux/pci-aspm.h>
+#include <linux/phy.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/ip.h>
@@ -2183,6 +2184,126 @@ static s32 igb_init_i2c(struct igb_adapt
return status;
}
+
+#ifdef CONFIG_PHYLIB
+/*
+ * MMIO/PHYdev support
+ */
+
+static int igb_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
+{
+ struct e1000_hw *hw = bus->priv;
+ u16 out;
+ int err;
+
+ err = igb_read_reg_gs40g(hw, mii_id, regnum, &out);
+ if (err)
+ return err;
+ return out;
+}
+
+static int igb_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
+ u16 val)
+{
+ struct e1000_hw *hw = bus->priv;
+
+ return igb_write_reg_gs40g(hw, mii_id, regnum, val);
+}
+
+static int igb_enet_mdio_reset(struct mii_bus *bus)
+{
+ udelay(300);
+ return 0;
+}
+
+static void igb_enet_mii_link(struct net_device *netdev)
+{
+}
+
+/* Probe the mdio bus for phys and connect them */
+static int igb_enet_mii_probe(struct net_device *netdev)
+{
+ struct igb_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct phy_device *phy_dev = NULL;
+ int phy_id;
+
+ /* check for attached phy */
+ for (phy_id = 0; (phy_id < PHY_MAX_ADDR); phy_id++) {
+ if (hw->mii_bus->phy_map[phy_id]) {
+ phy_dev = hw->mii_bus->phy_map[phy_id];
+ break;
+ }
+ }
+ if (!phy_dev) {
+ netdev_err(netdev, "no PHY found\n");
+ return -ENODEV;
+ }
+
+ hw->phy_interface = PHY_INTERFACE_MODE_RGMII;
+ phy_dev = phy_connect(netdev, dev_name(&phy_dev->dev),
+ igb_enet_mii_link, hw->phy_interface);
+ if (IS_ERR(phy_dev)) {
+ netdev_err(netdev, "could not attach to PHY\n");
+ return PTR_ERR(phy_dev);
+ }
+
+ hw->phy_dev = phy_dev;
+ netdev_info(netdev, "igb PHY driver [%s] (mii_bus:phy_addr=%s)\n",
+ hw->phy_dev->drv->name, dev_name(&hw->phy_dev->dev));
+
+ return 0;
+}
+
+/* Create and register mdio bus */
+static int igb_enet_mii_init(struct pci_dev *pdev)
+{
+ struct mii_bus *mii_bus;
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct igb_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int err;
+
+ mii_bus = mdiobus_alloc();
+ if (mii_bus == NULL) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+
+ mii_bus->name = "igb_enet_mii_bus";
+ mii_bus->read = igb_enet_mdio_read;
+ mii_bus->write = igb_enet_mdio_write;
+ mii_bus->reset = igb_enet_mdio_reset;
+ snprintf(mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+ pci_name(pdev), hw->device_id + 1);
+ mii_bus->priv = hw;
+ mii_bus->parent = &pdev->dev;
+ mii_bus->phy_mask = ~(1 << hw->phy.addr);
+
+ err = mdiobus_register(mii_bus);
+ if (err) {
+ printk(KERN_ERR "failed to register mii_bus: %d\n", err);
+ goto err_out_free_mdiobus;
+ }
+ hw->mii_bus = mii_bus;
+
+ return 0;
+
+err_out_free_mdiobus:
+ mdiobus_free(mii_bus);
+err_out:
+ return err;
+}
+
+static void igb_enet_mii_remove(struct e1000_hw *hw)
+{
+ if (hw->mii_bus) {
+ mdiobus_unregister(hw->mii_bus);
+ mdiobus_free(hw->mii_bus);
+ }
+}
+#endif /* CONFIG_PHYLIB */
+
/**
* igb_probe - Device Initialization Routine
* @pdev: PCI device information struct
@@ -2585,6 +2706,13 @@ static int igb_probe(struct pci_dev *pde
}
pm_runtime_put_noidle(&pdev->dev);
+
+#ifdef CONFIG_PHYLIB
+ /* create and register the mdio bus if using ext phy */
+ if (rd32(E1000_MDICNFG) & E1000_MDICNFG_EXT_MDIO)
+ igb_enet_mii_init(pdev);
+#endif
+
return 0;
err_register:
@@ -2728,6 +2856,10 @@ static void igb_remove(struct pci_dev *p
struct e1000_hw *hw = &adapter->hw;
pm_runtime_get_noresume(&pdev->dev);
+#ifdef CONFIG_PHYLIB
+ if (rd32(E1000_MDICNFG) & E1000_MDICNFG_EXT_MDIO)
+ igb_enet_mii_remove(hw);
+#endif
#ifdef CONFIG_IGB_HWMON
igb_sysfs_exit(adapter);
#endif
@@ -3032,6 +3164,12 @@ static int __igb_open(struct net_device
if (!resuming)
pm_runtime_put(&pdev->dev);
+#ifdef CONFIG_PHYLIB
+ /* Probe and connect to PHY if using ext phy */
+ if (rd32(E1000_MDICNFG) & E1000_MDICNFG_EXT_MDIO)
+ igb_enet_mii_probe(netdev);
+#endif
+
/* start the watchdog. */
hw->mac.get_link_status = 1;
schedule_work(&adapter->watchdog_task);
@@ -7087,21 +7225,41 @@ void igb_alloc_rx_buffers(struct igb_rin
static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
{
struct igb_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
struct mii_ioctl_data *data = if_mii(ifr);
- if (adapter->hw.phy.media_type != e1000_media_type_copper)
+ if (adapter->hw.phy.media_type != e1000_media_type_copper &&
+ !(rd32(E1000_MDICNFG) & E1000_MDICNFG_EXT_MDIO))
return -EOPNOTSUPP;
switch (cmd) {
case SIOCGMIIPHY:
- data->phy_id = adapter->hw.phy.addr;
+ data->phy_id = hw->phy.addr;
break;
case SIOCGMIIREG:
- if (igb_read_phy_reg(&adapter->hw, data->reg_num & 0x1F,
- &data->val_out))
- return -EIO;
+ if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211) {
+ if (igb_read_reg_gs40g(hw, data->phy_id,
+ data->reg_num & 0x1F,
+ &data->val_out))
+ return -EIO;
+ } else {
+ if (igb_read_phy_reg(hw, data->reg_num & 0x1F,
+ &data->val_out))
+ return -EIO;
+ }
break;
case SIOCSMIIREG:
+ if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211) {
+ if (igb_write_reg_gs40g(hw, data->phy_id,
+ data->reg_num & 0x1F,
+ data->val_in))
+ return -EIO;
+ } else {
+ if (igb_write_phy_reg(hw, data->reg_num & 0x1F,
+ data->val_in))
+ return -EIO;
+ }
+ break;
default:
return -EOPNOTSUPP;
}

27
target/linux/imx6/patches-3.14/205-phy-add-driver-for-GW16083-Ethernet-Expansion-Mezzan.patch Normal file
View file

@ -0,0 +1,27 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -270,6 +270,14 @@ endif # RTL8366_SMI
source "drivers/net/phy/b53/Kconfig"
+config GATEWORKS_GW16083
+ tristate "Gateworks GW16083 Ethernet Expansion Mezzanine"
+ ---help---
+ The Gateworks GW16083 Ethernet Expansion Mezzanine connects to a
+ Gateworks Ventana baseboard and provides a 7-port GbE managed
+ Ethernet switch with 4 dedicated GbE RJ45 ports, and 2 Gbe/SFP
+ ports"
+
endif # PHYLIB
config MICREL_KS8995MA
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_NATIONAL_PHY) += national.o
obj-$(CONFIG_DP83640_PHY) += dp83640.o
obj-$(CONFIG_STE10XP) += ste10Xp.o
obj-$(CONFIG_MICREL_PHY) += micrel.o
+obj-$(CONFIG_GATEWORKS_GW16083) += gw16083.o
obj-$(CONFIG_MDIO_OCTEON) += mdio-octeon.o
obj-$(CONFIG_MICREL_KS8995MA) += spi_ks8995.o
obj-$(CONFIG_AT803X_PHY) += at803x.o

56
target/linux/imx6/patches-3.14/206-ARM-imx-ventana-added-GW16083-to-device-tree.patch Normal file
View file

@ -0,0 +1,56 @@
--- a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
@@ -201,6 +201,11 @@
};
};
};
+
+ gw16083: gw16083@52 {
+ compatible = "gateworks,gw16083";
+ reg = <0x52>;
+ };
};
&i2c3 {
--- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
@@ -268,6 +268,11 @@
};
};
};
+
+ gw16083: gw16083@52 {
+ compatible = "gateworks,gw16083";
+ reg = <0x52>;
+ };
};
&i2c3 {
--- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
@@ -289,6 +289,11 @@
};
};
};
+
+ gw16083: gw16083@52 {
+ compatible = "gateworks,gw16083";
+ reg = <0x52>;
+ };
};
&i2c3 {
--- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
@@ -317,6 +317,11 @@
compatible = "sil,si52147";
reg = <0x6b>;
};
+
+ gw16083: gw16083@52 {
+ compatible = "gateworks,gw16083";
+ reg = <0x52>;
+ };
};
&i2c3 {

2
target/linux/imx6/profiles/120-gateworks.mk
View file

@ -12,7 +12,7 @@ define Profile/VENTANA
kmod-sound-core kmod-sound-soc-imx kmod-sound-soc-imx-sgtl5000 \
kmod-can kmod-can-flexcan kmod-can-raw \
kmod-rtc-ds1672 kmod-gpio-pca953x kmod-hwmon-gsc kmod-eeprom-at24 \
kmod-leds-gpio kmod-pps-gpio \
kmod-leds-gpio kmod-pps-gpio kmod-gw16083 \
kobs-ng
endef