diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c index e6e758eaafea..c48811d3bcd5 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c @@ -3,6 +3,7 @@ #include <linux/acpi.h> #include <linux/pcs-lynx.h> +#include <linux/phy/phy.h> #include <linux/property.h> #include "dpaa2-eth.h" @@ -60,6 +61,29 @@ static int phy_mode(enum dpmac_eth_if eth_if, phy_interface_t *if_mode) return 0; } +static enum dpmac_eth_if dpmac_eth_if_mode(phy_interface_t if_mode) +{ + switch (if_mode) { + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + return DPMAC_ETH_IF_RGMII; + case PHY_INTERFACE_MODE_USXGMII: + return DPMAC_ETH_IF_USXGMII; + case PHY_INTERFACE_MODE_QSGMII: + return DPMAC_ETH_IF_QSGMII; + case PHY_INTERFACE_MODE_SGMII: + return DPMAC_ETH_IF_SGMII; + case PHY_INTERFACE_MODE_10GBASER: + return DPMAC_ETH_IF_XFI; + case PHY_INTERFACE_MODE_1000BASEX: + return DPMAC_ETH_IF_1000BASEX; + default: + return DPMAC_ETH_IF_MII; + } +} + static struct fwnode_handle *dpaa2_mac_get_node(struct device *dev, u16 dpmac_id) { @@ -147,6 +171,19 @@ static void dpaa2_mac_config(struct phylink_config *config, unsigned int mode, if (err) netdev_err(mac->net_dev, "%s: dpmac_set_link_state() = %d\n", __func__, err); + + if (!mac->serdes_phy) + return; + + /* This happens only if we support changing of protocol at runtime */ + err = dpmac_set_protocol(mac->mc_io, 0, mac->mc_dev->mc_handle, + dpmac_eth_if_mode(state->interface)); + if (err) + netdev_err(mac->net_dev, "dpmac_set_protocol() = %d\n", err); + + err = phy_set_mode_ext(mac->serdes_phy, PHY_MODE_ETHERNET, state->interface); + if (err) + netdev_err(mac->net_dev, "phy_set_mode_ext() = %d\n", err); } static void dpaa2_mac_link_up(struct phylink_config *config, @@ -259,6 +296,8 @@ static void dpaa2_pcs_destroy(struct dpaa2_mac *mac) static void dpaa2_mac_set_supported_interfaces(struct dpaa2_mac *mac) { + int intf, err; + /* We support the current interface mode, and if we have a PCS * similar interface modes that do not require the SerDes lane to be * reconfigured. @@ -278,12 +317,43 @@ static void dpaa2_mac_set_supported_interfaces(struct dpaa2_mac *mac) break; } } + + if (!mac->serdes_phy) + return; + + /* In case we have access to the SerDes phy/lane, then ask the SerDes + * driver what interfaces are supported based on the current PLL + * configuration. + */ + for (intf = 0; intf < PHY_INTERFACE_MODE_MAX; intf++) { + if (intf == PHY_INTERFACE_MODE_NA) + continue; + + err = phy_validate(mac->serdes_phy, PHY_MODE_ETHERNET, intf, NULL); + if (err) + continue; + + __set_bit(intf, mac->phylink_config.supported_interfaces); + } +} + +void dpaa2_mac_start(struct dpaa2_mac *mac) +{ + if (mac->serdes_phy) + phy_power_on(mac->serdes_phy); +} + +void dpaa2_mac_stop(struct dpaa2_mac *mac) +{ + if (mac->serdes_phy) + phy_power_off(mac->serdes_phy); } int dpaa2_mac_connect(struct dpaa2_mac *mac) { struct net_device *net_dev = mac->net_dev; struct fwnode_handle *dpmac_node; + struct phy *serdes_phy = NULL; struct phylink *phylink; int err; @@ -300,6 +370,20 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac) return -EINVAL; mac->if_mode = err; + if (mac->features & DPAA2_MAC_FEATURE_PROTOCOL_CHANGE && + !phy_interface_mode_is_rgmii(mac->if_mode) && + is_of_node(dpmac_node)) { + serdes_phy = of_phy_get(to_of_node(dpmac_node), NULL); + + if (serdes_phy == ERR_PTR(-ENODEV)) + serdes_phy = NULL; + else if (IS_ERR(serdes_phy)) + return PTR_ERR(serdes_phy); + else + phy_init(serdes_phy); + } + mac->serdes_phy = serdes_phy; + /* The MAC does not have the capability to add RGMII delays so * error out if the interface mode requests them and there is no PHY * to act upon them @@ -363,6 +447,8 @@ void dpaa2_mac_disconnect(struct dpaa2_mac *mac) phylink_disconnect_phy(mac->phylink); phylink_destroy(mac->phylink); dpaa2_pcs_destroy(mac); + of_phy_put(mac->serdes_phy); + mac->serdes_phy = NULL; } int dpaa2_mac_open(struct dpaa2_mac *mac) |