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Merge branch 'lan78xx-fixed-phy'
Raghuram Chary J says: ==================== lan78xx updates along with Fixed phy Support These series of patches handle few modifications in driver and adds support for fixed phy. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
commit
f90652841f
@ -111,6 +111,7 @@ config USB_LAN78XX
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select MII
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select PHYLIB
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select MICROCHIP_PHY
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select FIXED_PHY
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help
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This option adds support for Microchip LAN78XX based USB 2
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& USB 3 10/100/1000 Ethernet adapters.
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@ -36,7 +36,7 @@
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#include <linux/irq.h>
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#include <linux/irqchip/chained_irq.h>
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#include <linux/microchipphy.h>
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#include <linux/phy.h>
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#include <linux/phy_fixed.h>
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#include <linux/of_mdio.h>
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#include <linux/of_net.h>
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#include "lan78xx.h"
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@ -44,7 +44,6 @@
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#define DRIVER_AUTHOR "WOOJUNG HUH <woojung.huh@microchip.com>"
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#define DRIVER_DESC "LAN78XX USB 3.0 Gigabit Ethernet Devices"
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#define DRIVER_NAME "lan78xx"
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#define DRIVER_VERSION "1.0.6"
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#define TX_TIMEOUT_JIFFIES (5 * HZ)
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#define THROTTLE_JIFFIES (HZ / 8)
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@ -1503,7 +1502,6 @@ static void lan78xx_get_drvinfo(struct net_device *net,
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struct lan78xx_net *dev = netdev_priv(net);
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strncpy(info->driver, DRIVER_NAME, sizeof(info->driver));
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strncpy(info->version, DRIVER_VERSION, sizeof(info->version));
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usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info));
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}
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@ -2063,52 +2061,91 @@ static int ksz9031rnx_fixup(struct phy_device *phydev)
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return 1;
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}
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static struct phy_device *lan7801_phy_init(struct lan78xx_net *dev)
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{
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u32 buf;
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int ret;
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struct fixed_phy_status fphy_status = {
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.link = 1,
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.speed = SPEED_1000,
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.duplex = DUPLEX_FULL,
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};
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struct phy_device *phydev;
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phydev = phy_find_first(dev->mdiobus);
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if (!phydev) {
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netdev_dbg(dev->net, "PHY Not Found!! Registering Fixed PHY\n");
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phydev = fixed_phy_register(PHY_POLL, &fphy_status, -1,
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NULL);
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if (IS_ERR(phydev)) {
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netdev_err(dev->net, "No PHY/fixed_PHY found\n");
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return NULL;
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}
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netdev_dbg(dev->net, "Registered FIXED PHY\n");
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dev->interface = PHY_INTERFACE_MODE_RGMII;
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ret = lan78xx_write_reg(dev, MAC_RGMII_ID,
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MAC_RGMII_ID_TXC_DELAY_EN_);
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ret = lan78xx_write_reg(dev, RGMII_TX_BYP_DLL, 0x3D00);
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ret = lan78xx_read_reg(dev, HW_CFG, &buf);
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buf |= HW_CFG_CLK125_EN_;
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buf |= HW_CFG_REFCLK25_EN_;
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ret = lan78xx_write_reg(dev, HW_CFG, buf);
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} else {
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if (!phydev->drv) {
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netdev_err(dev->net, "no PHY driver found\n");
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return NULL;
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}
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dev->interface = PHY_INTERFACE_MODE_RGMII;
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/* external PHY fixup for KSZ9031RNX */
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ret = phy_register_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0,
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ksz9031rnx_fixup);
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if (ret < 0) {
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netdev_err(dev->net, "Failed to register fixup for PHY_KSZ9031RNX\n");
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return NULL;
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}
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/* external PHY fixup for LAN8835 */
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ret = phy_register_fixup_for_uid(PHY_LAN8835, 0xfffffff0,
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lan8835_fixup);
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if (ret < 0) {
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netdev_err(dev->net, "Failed to register fixup for PHY_LAN8835\n");
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return NULL;
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}
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/* add more external PHY fixup here if needed */
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phydev->is_internal = false;
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}
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return phydev;
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}
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static int lan78xx_phy_init(struct lan78xx_net *dev)
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{
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int ret;
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u32 mii_adv;
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struct phy_device *phydev;
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phydev = phy_find_first(dev->mdiobus);
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if (!phydev) {
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netdev_err(dev->net, "no PHY found\n");
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return -EIO;
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}
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if ((dev->chipid == ID_REV_CHIP_ID_7800_) ||
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(dev->chipid == ID_REV_CHIP_ID_7850_)) {
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phydev->is_internal = true;
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dev->interface = PHY_INTERFACE_MODE_GMII;
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} else if (dev->chipid == ID_REV_CHIP_ID_7801_) {
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if (!phydev->drv) {
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netdev_err(dev->net, "no PHY driver found\n");
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switch (dev->chipid) {
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case ID_REV_CHIP_ID_7801_:
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phydev = lan7801_phy_init(dev);
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if (!phydev) {
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netdev_err(dev->net, "lan7801: PHY Init Failed");
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return -EIO;
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}
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break;
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dev->interface = PHY_INTERFACE_MODE_RGMII;
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/* external PHY fixup for KSZ9031RNX */
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ret = phy_register_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0,
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ksz9031rnx_fixup);
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if (ret < 0) {
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netdev_err(dev->net, "fail to register fixup\n");
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return ret;
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case ID_REV_CHIP_ID_7800_:
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case ID_REV_CHIP_ID_7850_:
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phydev = phy_find_first(dev->mdiobus);
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if (!phydev) {
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netdev_err(dev->net, "no PHY found\n");
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return -EIO;
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}
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/* external PHY fixup for LAN8835 */
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ret = phy_register_fixup_for_uid(PHY_LAN8835, 0xfffffff0,
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lan8835_fixup);
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if (ret < 0) {
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netdev_err(dev->net, "fail to register fixup\n");
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return ret;
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}
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/* add more external PHY fixup here if needed */
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phydev->is_internal = true;
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dev->interface = PHY_INTERFACE_MODE_GMII;
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break;
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phydev->is_internal = false;
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} else {
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netdev_err(dev->net, "unknown ID found\n");
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ret = -EIO;
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goto error;
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default:
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netdev_err(dev->net, "Unknown CHIP ID found\n");
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return -EIO;
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}
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/* if phyirq is not set, use polling mode in phylib */
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@ -2127,6 +2164,16 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
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if (ret) {
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netdev_err(dev->net, "can't attach PHY to %s\n",
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dev->mdiobus->id);
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if (dev->chipid == ID_REV_CHIP_ID_7801_) {
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if (phy_is_pseudo_fixed_link(phydev)) {
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fixed_phy_unregister(phydev);
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} else {
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phy_unregister_fixup_for_uid(PHY_KSZ9031RNX,
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0xfffffff0);
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phy_unregister_fixup_for_uid(PHY_LAN8835,
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0xfffffff0);
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}
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}
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return -EIO;
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}
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@ -2166,12 +2213,6 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
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dev->fc_autoneg = phydev->autoneg;
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return 0;
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error:
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phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0);
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phy_unregister_fixup_for_uid(PHY_LAN8835, 0xfffffff0);
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return ret;
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}
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static int lan78xx_set_rx_max_frame_length(struct lan78xx_net *dev, int size)
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@ -3569,6 +3610,7 @@ static void lan78xx_disconnect(struct usb_interface *intf)
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struct lan78xx_net *dev;
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struct usb_device *udev;
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struct net_device *net;
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struct phy_device *phydev;
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dev = usb_get_intfdata(intf);
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usb_set_intfdata(intf, NULL);
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@ -3577,12 +3619,16 @@ static void lan78xx_disconnect(struct usb_interface *intf)
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udev = interface_to_usbdev(intf);
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net = dev->net;
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phydev = net->phydev;
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phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0);
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phy_unregister_fixup_for_uid(PHY_LAN8835, 0xfffffff0);
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phy_disconnect(net->phydev);
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if (phy_is_pseudo_fixed_link(phydev))
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fixed_phy_unregister(phydev);
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unregister_netdev(net);
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cancel_delayed_work_sync(&dev->wq);
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