[v4, 9/9] fsl/fman: Add FMan MAC driver

From: igal.liberman
Date: Wed Aug 05 2015 - 09:56:19 EST

From: Igal Liberman <Igal.Liberman@xxxxxxxxxxxxx>

This patch adds the Ethernet MAC driver support.

Signed-off-by: Igal Liberman <Igal.Liberman@xxxxxxxxxxxxx>
Signed-off-by: Madalin Bucur <madalin.bucur@xxxxxxxxxxxxx>
---
drivers/net/ethernet/freescale/fman/inc/mac.h | 135 ++++
drivers/net/ethernet/freescale/fman/mac/Makefile | 3 +-
drivers/net/ethernet/freescale/fman/mac/mac-api.c | 688 +++++++++++++++++++++
drivers/net/ethernet/freescale/fman/mac/mac.c | 445 +++++++++++++
4 files changed, 1270 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/ethernet/freescale/fman/inc/mac.h
create mode 100644 drivers/net/ethernet/freescale/fman/mac/mac-api.c
create mode 100644 drivers/net/ethernet/freescale/fman/mac/mac.c

diff --git a/drivers/net/ethernet/freescale/fman/inc/mac.h b/drivers/net/ethernet/freescale/fman/inc/mac.h
new file mode 100644
index 0000000..f86d0bc
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fman/inc/mac.h
@@ -0,0 +1,135 @@
+/* Copyright 2008-2015 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __MAC_H
+#define __MAC_H
+
+#include <linux/device.h> /* struct device, BUS_ID_SIZE */
+#include <linux/if_ether.h> /* ETH_ALEN */
+#include <linux/phy.h> /* phy_interface_t, struct phy_device */
+#include <linux/list.h>
+
+#include "enet_ext.h"
+
+#include "fsl_fman_drv.h" /* struct port_device */
+#include "fm_port_ext.h"
+
+struct fm_mac_dev;
+enum fm_mac_exceptions;
+
+enum {DTSEC, XGMAC, MEMAC};
+
+struct mac_device {
+ struct device *dev;
+ void *priv;
+ u8 cell_index;
+ struct resource *res;
+ void __iomem *vaddr;
+ u8 addr[ETH_ALEN];
+ bool promisc;
+
+ struct fm *fm_dev;
+ struct fm_port_drv_t *port_dev[2];
+
+ phy_interface_t phy_if;
+ u32 if_support;
+ bool link;
+ bool fixed_link;
+ u16 speed;
+ u16 max_speed;
+ struct device_node *phy_node;
+ struct device_node *tbi_node;
+ struct phy_device *phy_dev;
+ void *fm;
+ /* List of multicast addresses */
+ struct list_head mc_addr_list;
+ struct platform_device *eth_dev;
+
+ bool autoneg_pause;
+ bool rx_pause_req;
+ bool tx_pause_req;
+ bool rx_pause_active;
+ bool tx_pause_active;
+
+ int (*init_phy)(struct net_device *net_dev, struct mac_device *mac_dev);
+ int (*init)(struct mac_device *mac_dev);
+ int (*start)(struct mac_device *mac_dev);
+ int (*stop)(struct mac_device *mac_dev);
+ int (*set_promisc)(struct fm_mac_dev *fm_mac_dev, bool enable);
+ int (*change_addr)(struct fm_mac_dev *fm_mac_dev,
+ enet_addr_t *p_enet_addr);
+ int (*set_multi)(struct net_device *net_dev,
+ struct mac_device *mac_dev);
+ int (*set_rx_pause)(struct fm_mac_dev *fm_mac_dev, bool en);
+ int (*set_tx_pause)(struct fm_mac_dev *fm_mac_dev, u8 priority,
+ u16 pause_time, u16 thresh_time);
+ int (*set_exception)(struct fm_mac_dev *fm_mac_dev,
+ enum fm_mac_exceptions exception,
+ bool enable);
+ int (*add_hash_mac_addr)(struct fm_mac_dev *fm_mac_dev,
+ enet_addr_t *p_eth_addr);
+ int (*remove_hash_mac_addr)(struct fm_mac_dev *fm_mac_dev,
+ enet_addr_t *p_eth_addr);
+};
+
+struct mac_address {
+ u8 addr[ETH_ALEN];
+ struct list_head list;
+};
+
+struct dpaa_eth_data {
+ struct device_node *mac_node;
+ struct mac_device *mac_dev;
+ int mac_hw_id;
+ int fman_hw_id;
+};
+
+#define get_fm_handle(net_dev) \
+ (((struct dpa_priv_s *)netdev_priv(net_dev))->mac_dev->fm_dev)
+
+#define for_each_port_device(i, port_dev) \
+ for (i = 0; i < ARRAY_SIZE(port_dev); i++)
+
+static inline __attribute((nonnull)) void *macdev_priv(
+ const struct mac_device *mac_dev)
+{
+ return (void *)mac_dev + sizeof(*mac_dev);
+}
+
+extern const char *mac_driver_description;
+extern const size_t mac_sizeof_priv[];
+extern void (*const mac_setup[])(struct mac_device *mac_dev);
+
+int set_mac_active_pause(struct mac_device *mac_dev, bool rx, bool tx);
+void get_pause_cfg(struct mac_device *mac_dev, bool *rx_pause, bool *tx_pause);
+struct fm_mac_dev *get_mac_handle(struct mac_device *mac_dev);
+
+#endif /* __MAC_H */
diff --git a/drivers/net/ethernet/freescale/fman/mac/Makefile b/drivers/net/ethernet/freescale/fman/mac/Makefile
index 26e35e1..909abec 100644
--- a/drivers/net/ethernet/freescale/fman/mac/Makefile
+++ b/drivers/net/ethernet/freescale/fman/mac/Makefile
@@ -1,7 +1,8 @@
-obj-y += fsl_fman_mac.o
+obj-y += fsl_fman_mac.o fsl_mac.o

fsl_fman_mac-objs := fman_dtsec.o fman_dtsec_mii_acc.o \
fm_dtsec.o \
fman_memac.o fman_memac_mii_acc.o \
fm_memac.o \
fman_tgec.o fm_tgec.o
+fsl_mac-objs += mac.o mac-api.o
diff --git a/drivers/net/ethernet/freescale/fman/mac/mac-api.c b/drivers/net/ethernet/freescale/fman/mac/mac-api.c
new file mode 100644
index 0000000..e7cac9f
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fman/mac/mac-api.c
@@ -0,0 +1,688 @@
+/* Copyright 2008-2015 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/of_mdio.h>
+#include <linux/phy.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+
+#include "mac.h"
+#include "fsl_fman_drv.h"
+#include "fm_mac.h"
+#include "fm_dtsec.h"
+#include "fm_tgec.h"
+#include "fm_memac.h"
+
+#define MAC_DESCRIPTION "FSL FMan MAC API based driver"
+
+MODULE_LICENSE("Dual BSD/GPL");
+
+MODULE_AUTHOR("Emil Medve <Emilian.Medve@xxxxxxxxxxxxx>");
+
+MODULE_DESCRIPTION(MAC_DESCRIPTION);
+
+struct mac_priv_s {
+ struct fm_mac_dev *fm_mac;
+};
+
+const char *mac_driver_description __initconst = MAC_DESCRIPTION;
+const size_t mac_sizeof_priv[] = {
+ [DTSEC] = sizeof(struct mac_priv_s),
+ [XGMAC] = sizeof(struct mac_priv_s),
+ [MEMAC] = sizeof(struct mac_priv_s)
+};
+
+static const enum e_enet_mode _100[] = {
+ [PHY_INTERFACE_MODE_MII] = ENET_MODE_MII_100,
+ [PHY_INTERFACE_MODE_RMII] = ENET_MODE_RMII_100
+};
+
+static const enum e_enet_mode _1000[] = {
+ [PHY_INTERFACE_MODE_GMII] = ENET_MODE_GMII_1000,
+ [PHY_INTERFACE_MODE_SGMII] = ENET_MODE_SGMII_1000,
+ [PHY_INTERFACE_MODE_TBI] = ENET_MODE_TBI_1000,
+ [PHY_INTERFACE_MODE_RGMII] = ENET_MODE_RGMII_1000,
+ [PHY_INTERFACE_MODE_RGMII_ID] = ENET_MODE_RGMII_1000,
+ [PHY_INTERFACE_MODE_RGMII_RXID] = ENET_MODE_RGMII_1000,
+ [PHY_INTERFACE_MODE_RGMII_TXID] = ENET_MODE_RGMII_1000,
+ [PHY_INTERFACE_MODE_RTBI] = ENET_MODE_RTBI_1000
+};
+
+static enum e_enet_mode __attribute__((nonnull))
+macdev2enetinterface(const struct mac_device *mac_dev)
+{
+ switch (mac_dev->max_speed) {
+ case SPEED_100:
+ return _100[mac_dev->phy_if];
+ case SPEED_1000:
+ return _1000[mac_dev->phy_if];
+ case SPEED_10000:
+ return ENET_MODE_XGMII_10000;
+ default:
+ return ENET_MODE_MII_100;
+ }
+}
+
+struct fm_mac_dev *get_mac_handle(struct mac_device *mac_dev)
+{
+ const struct mac_priv_s *priv;
+
+ priv = macdev_priv(mac_dev);
+
+ return priv->fm_mac;
+}
+EXPORT_SYMBOL(get_mac_handle);
+
+static void mac_exception(void *_mac_dev, enum fm_mac_exceptions ex)
+{
+ struct mac_device *mac_dev;
+
+ mac_dev = (struct mac_device *)_mac_dev;
+
+ if (FM_MAC_EX_10G_RX_FIFO_OVFL == ex) {
+ /* don't flag RX FIFO after the first */
+ mac_dev->set_exception(get_mac_handle(mac_dev),
+ FM_MAC_EX_10G_RX_FIFO_OVFL, false);
+ dev_err(mac_dev->dev, "10G MAC got RX FIFO Error = %x\n",
+ ex);
+ }
+
+ dev_dbg(mac_dev->dev, "%s:%s() -> %d\n", KBUILD_BASENAME ".c",
+ __func__, ex);
+}
+
+static int tgec_initialization(struct mac_device *mac_dev)
+{
+ int err;
+ struct mac_priv_s *priv;
+ struct fm_mac_params_t param;
+ u32 version;
+
+ priv = macdev_priv(mac_dev);
+
+ param.base_addr = (typeof(param.base_addr))
+ devm_ioremap(mac_dev->dev, mac_dev->res->start, 0x2000);
+ param.enet_mode = macdev2enetinterface(mac_dev);
+ memcpy(&param.addr, mac_dev->addr,
+ min(sizeof(param.addr), sizeof(mac_dev->addr)));
+ param.mac_id = mac_dev->cell_index;
+ param.fm = (void *)mac_dev->fm;
+ param.exception_cb = mac_exception;
+ param.event_cb = mac_exception;
+ param.dev_id = mac_dev;
+
+ priv->fm_mac = tgec_config(&param);
+ if (!priv->fm_mac) {
+ err = -EINVAL;
+ goto _return;
+ }
+
+ err = tgec_cfg_max_frame_len(priv->fm_mac, fm_get_max_frm());
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ err = tgec_init(priv->fm_mac);
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ /* For 1G MAC, disable by default the MIB counters overflow interrupt */
+ if (macdev2enetinterface(mac_dev) != ENET_MODE_XGMII_10000) {
+ err = mac_dev->set_exception(get_mac_handle(mac_dev),
+ FM_MAC_EX_1G_RX_MIB_CNT_OVFL,
+ false);
+ if (err < 0)
+ goto _return_fm_mac_free;
+ }
+
+ /* For 10G MAC, disable Tx ECC exception */
+ if (macdev2enetinterface(mac_dev) == ENET_MODE_XGMII_10000) {
+ err = mac_dev->set_exception(get_mac_handle(mac_dev),
+ FM_MAC_EX_10G_TX_ECC_ER, false);
+ if (err < 0)
+ goto _return_fm_mac_free;
+ }
+
+ err = tgec_get_version(priv->fm_mac, &version);
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ dev_info(mac_dev->dev, "FMan %s version: 0x%08x\n",
+ ((macdev2enetinterface(mac_dev) != ENET_MODE_XGMII_10000) ?
+ "dTSEC" : "XGEC"), version);
+
+ goto _return;
+
+_return_fm_mac_free:
+ tgec_free(get_mac_handle(mac_dev));
+
+_return:
+ return err;
+}
+
+static int dtsec_initialization(struct mac_device *mac_dev)
+{
+ int err;
+ struct mac_priv_s *priv;
+ struct fm_mac_params_t param;
+ u32 version;
+
+ priv = macdev_priv(mac_dev);
+
+ param.base_addr = (typeof(param.base_addr))
+ devm_ioremap(mac_dev->dev, mac_dev->res->start, 0x2000);
+ param.enet_mode = macdev2enetinterface(mac_dev);
+ memcpy(&param.addr, mac_dev->addr,
+ min(sizeof(param.addr), sizeof(mac_dev->addr)));
+ param.mac_id = mac_dev->cell_index;
+ param.fm = (void *)mac_dev->fm;
+ param.exception_cb = mac_exception;
+ param.event_cb = mac_exception;
+ param.dev_id = mac_dev;
+
+ priv->fm_mac = dtsec_config(&param);
+ if (!priv->fm_mac) {
+ err = -EINVAL;
+ goto _return;
+ }
+
+ err = dtsec_cfg_max_frame_len(priv->fm_mac, fm_get_max_frm());
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ err = dtsec_cfg_pad_and_crc(priv->fm_mac, true);
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ err = dtsec_init(priv->fm_mac);
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ /* For 1G MAC, disable by default the MIB counters overflow interrupt */
+ if (macdev2enetinterface(mac_dev) != ENET_MODE_XGMII_10000) {
+ err = mac_dev->set_exception(get_mac_handle(mac_dev),
+ FM_MAC_EX_1G_RX_MIB_CNT_OVFL,
+ false);
+ if (err < 0)
+ goto _return_fm_mac_free;
+ }
+
+ /* For 10G MAC, disable Tx ECC exception */
+ if (macdev2enetinterface(mac_dev) == ENET_MODE_XGMII_10000) {
+ err = mac_dev->set_exception(get_mac_handle(mac_dev),
+ FM_MAC_EX_10G_TX_ECC_ER, false);
+ if (err < 0)
+ goto _return_fm_mac_free;
+ }
+
+ err = dtsec_get_version(priv->fm_mac, &version);
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ dev_info(mac_dev->dev, "FMan %s version: 0x%08x\n",
+ ((macdev2enetinterface(mac_dev) != ENET_MODE_XGMII_10000) ?
+ "dTSEC" : "XGEC"), version);
+
+ goto _return;
+
+_return_fm_mac_free:
+ dtsec_free(get_mac_handle(mac_dev));
+
+_return:
+ return err;
+}
+
+static int memac_initialization(struct mac_device *mac_dev)
+{
+ int err;
+ struct mac_priv_s *priv;
+ struct fm_mac_params_t param;
+
+ priv = macdev_priv(mac_dev);
+
+ param.base_addr = (typeof(param.base_addr))
+ devm_ioremap(mac_dev->dev, mac_dev->res->start, 0x2000);
+ param.enet_mode = macdev2enetinterface(mac_dev);
+ memcpy(&param.addr, mac_dev->addr, sizeof(mac_dev->addr));
+ param.mac_id = mac_dev->cell_index;
+ param.fm = (void *)mac_dev->fm;
+ param.exception_cb = mac_exception;
+ param.event_cb = mac_exception;
+ param.dev_id = mac_dev;
+
+ priv->fm_mac = memac_config(&param);
+ if (!priv->fm_mac) {
+ err = -EINVAL;
+ goto _return;
+ }
+
+ err = memac_cfg_max_frame_len(priv->fm_mac, fm_get_max_frm());
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ err = memac_cfg_reset_on_init(priv->fm_mac, true);
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ err = memac_cfg_fixed_link(priv->fm_mac, mac_dev->fixed_link);
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ err = memac_init(priv->fm_mac);
+ if (err < 0)
+ goto _return_fm_mac_free;
+
+ dev_info(mac_dev->dev, "FMan MEMAC\n");
+
+ goto _return;
+
+_return_fm_mac_free:
+ memac_free(priv->fm_mac);
+
+_return:
+ return err;
+}
+
+static int dtsec_start(struct mac_device *mac_dev)
+{
+ int err;
+ struct phy_device *phy_dev = mac_dev->phy_dev;
+
+ err = dtsec_enable(get_mac_handle(mac_dev),
+ COMM_MODE_RX_AND_TX);
+
+ if (!err && phy_dev)
+ phy_start(phy_dev);
+
+ return err;
+}
+
+static int tgec_start(struct mac_device *mac_dev)
+{
+ int err;
+ struct phy_device *phy_dev = mac_dev->phy_dev;
+
+ err = tgec_enable(get_mac_handle(mac_dev),
+ COMM_MODE_RX_AND_TX);
+
+ if (!err && phy_dev)
+ phy_start(phy_dev);
+
+ return err;
+}
+
+static int memac_start(struct mac_device *mac_dev)
+{
+ int err;
+ struct phy_device *phy_dev = mac_dev->phy_dev;
+
+ err = memac_enable(get_mac_handle(mac_dev),
+ COMM_MODE_RX_AND_TX);
+
+ if (!err && phy_dev)
+ phy_start(phy_dev);
+
+ return err;
+}
+
+static int dtsec_stop(struct mac_device *mac_dev)
+{
+ if (mac_dev->phy_dev)
+ phy_stop(mac_dev->phy_dev);
+
+ return dtsec_disable(get_mac_handle(mac_dev),
+ COMM_MODE_RX_AND_TX);
+}
+
+static int tgec_stop(struct mac_device *mac_dev)
+{
+ return tgec_disable(get_mac_handle(mac_dev),
+ COMM_MODE_RX_AND_TX);
+}
+
+static int memac_stop(struct mac_device *mac_dev)
+{
+ if (mac_dev->phy_dev && (macdev2enetinterface(mac_dev) !=
+ ENET_MODE_XGMII_10000))
+ phy_stop(mac_dev->phy_dev);
+
+ return memac_disable(get_mac_handle(mac_dev),
+ COMM_MODE_RX_AND_TX);
+}
+
+static int set_multi(struct net_device *net_dev, struct mac_device *mac_dev)
+{
+ struct mac_priv_s *mac_priv;
+ struct mac_address *old_addr, *tmp;
+ struct netdev_hw_addr *ha;
+ int err;
+ enet_addr_t *addr;
+
+ mac_priv = macdev_priv(mac_dev);
+
+ /* Clear previous address list */
+ list_for_each_entry_safe(old_addr, tmp, &mac_dev->mc_addr_list, list) {
+ addr = (enet_addr_t *)old_addr->addr;
+ err = mac_dev->remove_hash_mac_addr(mac_priv->fm_mac, addr);
+ if (err < 0)
+ return err;
+
+ list_del(&old_addr->list);
+ kfree(old_addr);
+ }
+
+ /* Add all the addresses from the new list */
+ netdev_for_each_mc_addr(ha, net_dev) {
+ addr = (enet_addr_t *)ha->addr;
+ err = mac_dev->add_hash_mac_addr(mac_priv->fm_mac, addr);
+ if (err < 0)
+ return err;
+
+ tmp = kmalloc(sizeof(*tmp), GFP_ATOMIC);
+ if (!tmp)
+ return -ENOMEM;
+
+ ether_addr_copy(tmp->addr, ha->addr);
+ list_add(&tmp->list, &mac_dev->mc_addr_list);
+ }
+ return 0;
+}
+
+/* Avoid redundant calls to FMD, if the MAC driver already contains the desired
+ * active PAUSE settings. Otherwise, the new active settings should be reflected
+ * in FMan.
+ */
+int set_mac_active_pause(struct mac_device *mac_dev, bool rx, bool tx)
+{
+ struct fm_mac_dev *fm_mac_dev = get_mac_handle(mac_dev);
+ int err = 0;
+
+ if (rx != mac_dev->rx_pause_active) {
+ err = mac_dev->set_rx_pause(fm_mac_dev, rx);
+ if (likely(err == 0))
+ mac_dev->rx_pause_active = rx;
+ }
+
+ if (tx != mac_dev->tx_pause_active) {
+ u16 pause_time = (tx ? FSL_FM_PAUSE_TIME_ENABLE :
+ FSL_FM_PAUSE_TIME_DISABLE);
+
+ err = mac_dev->set_tx_pause(fm_mac_dev, 0,
+ pause_time, 0);
+
+ if (likely(err == 0))
+ mac_dev->tx_pause_active = tx;
+ }
+
+ return err;
+}
+EXPORT_SYMBOL(set_mac_active_pause);
+
+/* Determine the MAC RX/TX PAUSE frames settings based on PHY
+ * autonegotiation or values set by eththool.
+ */
+void get_pause_cfg(struct mac_device *mac_dev, bool *rx_pause, bool *tx_pause)
+{
+ struct phy_device *phy_dev = mac_dev->phy_dev;
+ u16 lcl_adv, rmt_adv;
+ u8 flowctrl;
+
+ *rx_pause = *tx_pause = false;
+
+ if (!phy_dev->duplex)
+ return;
+
+ /* If PAUSE autonegotiation is disabled, the TX/RX PAUSE settings
+ * are those set by ethtool.
+ */
+ if (!mac_dev->autoneg_pause) {
+ *rx_pause = mac_dev->rx_pause_req;
+ *tx_pause = mac_dev->tx_pause_req;
+ return;
+ }
+
+ /* Else if PAUSE autonegotiation is enabled, the TX/RX PAUSE
+ * settings depend on the result of the link negotiation.
+ */
+
+ /* get local capabilities */
+ lcl_adv = 0;
+ if (phy_dev->advertising & ADVERTISED_Pause)
+ lcl_adv |= ADVERTISE_PAUSE_CAP;
+ if (phy_dev->advertising & ADVERTISED_Asym_Pause)
+ lcl_adv |= ADVERTISE_PAUSE_ASYM;
+
+ /* get link partner capabilities */
+ rmt_adv = 0;
+ if (phy_dev->pause)
+ rmt_adv |= LPA_PAUSE_CAP;
+ if (phy_dev->asym_pause)
+ rmt_adv |= LPA_PAUSE_ASYM;
+
+ /* Calculate TX/RX settings based on local and peer advertised
+ * symmetric/asymmetric PAUSE capabilities.
+ */
+ flowctrl = mii_resolve_flowctrl_fdx(lcl_adv, rmt_adv);
+ if (flowctrl & FLOW_CTRL_RX)
+ *rx_pause = true;
+ if (flowctrl & FLOW_CTRL_TX)
+ *tx_pause = true;
+}
+EXPORT_SYMBOL(get_pause_cfg);
+
+static void adjust_link_void(struct net_device *net_dev)
+{
+}
+
+static void adjust_link_dtsec(struct net_device *net_dev)
+{
+ struct device *dev = net_dev->dev.parent;
+ struct dpaa_eth_data *eth_data = dev->platform_data;
+ struct mac_device *mac_dev = eth_data->mac_dev;
+ struct phy_device *phy_dev = mac_dev->phy_dev;
+ struct fm_mac_dev *fm_mac_dev;
+ bool rx_pause, tx_pause;
+ int err;
+
+ fm_mac_dev = get_mac_handle(mac_dev);
+ if (!phy_dev->link) {
+ /* TODO: move in dtsec_an_errata() */
+ dtsec_restart_autoneg(fm_mac_dev);
+
+ return;
+ }
+
+ dtsec_adjust_link(fm_mac_dev, phy_dev->speed);
+ get_pause_cfg(mac_dev, &rx_pause, &tx_pause);
+ err = set_mac_active_pause(mac_dev, rx_pause, tx_pause);
+ if (err < 0)
+ netdev_err(net_dev, "set_mac_active_pause() = %d\n", err);
+}
+
+static void adjust_link_memac(struct net_device *net_dev)
+{
+ struct device *dev = net_dev->dev.parent;
+ struct dpaa_eth_data *eth_data = dev->platform_data;
+ struct mac_device *mac_dev = eth_data->mac_dev;
+ struct phy_device *phy_dev = mac_dev->phy_dev;
+ struct fm_mac_dev *fm_mac_dev;
+ bool rx_pause, tx_pause;
+ int err;
+
+ fm_mac_dev = get_mac_handle(mac_dev);
+ memac_adjust_link(fm_mac_dev, phy_dev->speed);
+
+ get_pause_cfg(mac_dev, &rx_pause, &tx_pause);
+ err = set_mac_active_pause(mac_dev, rx_pause, tx_pause);
+ if (err < 0)
+ netdev_err(net_dev, "set_mac_active_pause() = %d\n", err);
+}
+
+/* Initializes driver's PHY state, and attaches to the PHY.
+ * Returns 0 on success.
+ */
+static int dtsec_init_phy(struct net_device *net_dev,
+ struct mac_device *mac_dev)
+{
+ struct phy_device *phy_dev;
+
+ phy_dev = of_phy_connect(net_dev, mac_dev->phy_node,
+ &adjust_link_dtsec, 0,
+ mac_dev->phy_if);
+ if (!phy_dev) {
+ netdev_err(net_dev, "Could not connect to PHY %s\n",
+ mac_dev->phy_node->full_name);
+ return -ENODEV;
+ }
+
+ /* Remove any features not supported by the controller */
+ phy_dev->supported &= mac_dev->if_support;
+ /* Enable the symmetric and asymmetric PAUSE frame advertisements,
+ * as most of the PHY drivers do not enable them by default.
+ */
+ phy_dev->supported |= (SUPPORTED_Pause | SUPPORTED_Asym_Pause);
+ phy_dev->advertising = phy_dev->supported;
+
+ mac_dev->phy_dev = phy_dev;
+
+ return 0;
+}
+
+static int xgmac_init_phy(struct net_device *net_dev,
+ struct mac_device *mac_dev)
+{
+ struct phy_device *phy_dev;
+
+ phy_dev = of_phy_connect(net_dev, mac_dev->phy_node, &adjust_link_void,
+ 0, mac_dev->phy_if);
+ if (!phy_dev) {
+ netdev_err(net_dev, "Could not attach to PHY %s\n",
+ mac_dev->phy_node->full_name);
+ return -ENODEV;
+ }
+
+ phy_dev->supported &= mac_dev->if_support;
+ /* Enable the symmetric and asymmetric PAUSE frame advertisements,
+ * as most of the PHY drivers do not enable them by default.
+ */
+ phy_dev->supported |= (SUPPORTED_Pause | SUPPORTED_Asym_Pause);
+ phy_dev->advertising = phy_dev->supported;
+
+ mac_dev->phy_dev = phy_dev;
+
+ return 0;
+}
+
+static int memac_init_phy(struct net_device *net_dev,
+ struct mac_device *mac_dev)
+{
+ struct phy_device *phy_dev;
+
+ phy_dev = of_phy_connect(net_dev, mac_dev->phy_node,
+ &adjust_link_memac, 0,
+ mac_dev->phy_if);
+
+ if (!phy_dev) {
+ netdev_err(net_dev, "Could not connect to PHY %s\n",
+ mac_dev->phy_node->full_name);
+ return -ENODEV;
+ }
+
+ /* Remove any features not supported by the controller */
+ phy_dev->supported &= mac_dev->if_support;
+ /* Enable the symmetric and asymmetric PAUSE frame advertisements,
+ * as most of the PHY drivers do not enable them by default.
+ */
+ phy_dev->supported |= (SUPPORTED_Pause | SUPPORTED_Asym_Pause);
+ phy_dev->advertising = phy_dev->supported;
+
+ mac_dev->phy_dev = phy_dev;
+
+ return 0;
+}
+
+static void setup_dtsec(struct mac_device *mac_dev)
+{
+ mac_dev->init_phy = dtsec_init_phy;
+ mac_dev->init = dtsec_initialization;
+ mac_dev->start = dtsec_start;
+ mac_dev->stop = dtsec_stop;
+ mac_dev->set_promisc = dtsec_set_promiscuous;
+ mac_dev->change_addr = dtsec_modify_mac_address;
+ mac_dev->add_hash_mac_addr = dtsec_add_hash_mac_address;
+ mac_dev->remove_hash_mac_addr = dtsec_del_hash_mac_address;
+ mac_dev->set_multi = set_multi;
+ mac_dev->set_tx_pause = dtsec_set_tx_pause_frames;
+ mac_dev->set_rx_pause = dtsec_accept_rx_pause_frames;
+ mac_dev->set_exception = dtsec_set_exception;
+}
+
+static void setup_xgmac(struct mac_device *mac_dev)
+{
+ mac_dev->init_phy = xgmac_init_phy;
+ mac_dev->init = tgec_initialization;
+ mac_dev->start = tgec_start;
+ mac_dev->stop = tgec_stop;
+ mac_dev->set_promisc = tgec_set_promiscuous;
+ mac_dev->change_addr = tgec_modify_mac_address;
+ mac_dev->add_hash_mac_addr = tgec_add_hash_mac_address;
+ mac_dev->remove_hash_mac_addr = tgec_del_hash_mac_address;
+ mac_dev->set_multi = set_multi;
+ mac_dev->set_tx_pause = tgec_set_tx_pause_frames;
+ mac_dev->set_rx_pause = tgec_accept_rx_pause_frames;
+ mac_dev->set_exception = tgec_set_exception;
+}
+
+static void setup_memac(struct mac_device *mac_dev)
+{
+ mac_dev->init_phy = memac_init_phy;
+ mac_dev->init = memac_initialization;
+ mac_dev->start = memac_start;
+ mac_dev->stop = memac_stop;
+ mac_dev->set_promisc = memac_set_promiscuous;
+ mac_dev->change_addr = memac_modify_mac_address;
+ mac_dev->add_hash_mac_addr = memac_add_hash_mac_address;
+ mac_dev->remove_hash_mac_addr = memac_del_hash_mac_address;
+ mac_dev->set_multi = set_multi;
+ mac_dev->set_tx_pause = memac_set_tx_pause_frames;
+ mac_dev->set_rx_pause = memac_accept_rx_pause_frames;
+ mac_dev->set_exception = memac_set_exception;
+}
+
+void (*const mac_setup[])(struct mac_device *mac_dev) = {
+ [DTSEC] = setup_dtsec,
+ [XGMAC] = setup_xgmac,
+ [MEMAC] = setup_memac
+};
diff --git a/drivers/net/ethernet/freescale/fman/mac/mac.c b/drivers/net/ethernet/freescale/fman/mac/mac.c
new file mode 100644
index 0000000..c44544b
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fman/mac/mac.c
@@ -0,0 +1,445 @@
+/* Copyright 2008-2015 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+#include <linux/device.h>
+#include <linux/phy.h>
+
+#include "mac.h"
+
+#define DTSEC_SUPPORTED \
+ (SUPPORTED_10baseT_Half \
+ | SUPPORTED_10baseT_Full \
+ | SUPPORTED_100baseT_Half \
+ | SUPPORTED_100baseT_Full \
+ | SUPPORTED_Autoneg \
+ | SUPPORTED_Pause \
+ | SUPPORTED_Asym_Pause \
+ | SUPPORTED_MII)
+
+static DEFINE_MUTEX(eth_lock);
+
+static const char phy_str[][11] = {
+ [PHY_INTERFACE_MODE_MII] = "mii",
+ [PHY_INTERFACE_MODE_GMII] = "gmii",
+ [PHY_INTERFACE_MODE_SGMII] = "sgmii",
+ [PHY_INTERFACE_MODE_TBI] = "tbi",
+ [PHY_INTERFACE_MODE_RMII] = "rmii",
+ [PHY_INTERFACE_MODE_RGMII] = "rgmii",
+ [PHY_INTERFACE_MODE_RGMII_ID] = "rgmii-id",
+ [PHY_INTERFACE_MODE_RGMII_RXID] = "rgmii-rxid",
+ [PHY_INTERFACE_MODE_RGMII_TXID] = "rgmii-txid",
+ [PHY_INTERFACE_MODE_RTBI] = "rtbi",
+ [PHY_INTERFACE_MODE_XGMII] = "xgmii"
+};
+
+static phy_interface_t __pure __attribute__((nonnull)) str2phy(const char *str)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(phy_str); i++)
+ if (strcmp(str, phy_str[i]) == 0)
+ return (phy_interface_t)i;
+
+ return PHY_INTERFACE_MODE_MII;
+}
+
+static const u16 phy2speed[] = {
+ [PHY_INTERFACE_MODE_MII] = SPEED_100,
+ [PHY_INTERFACE_MODE_GMII] = SPEED_1000,
+ [PHY_INTERFACE_MODE_SGMII] = SPEED_1000,
+ [PHY_INTERFACE_MODE_TBI] = SPEED_1000,
+ [PHY_INTERFACE_MODE_RMII] = SPEED_100,
+ [PHY_INTERFACE_MODE_RGMII] = SPEED_1000,
+ [PHY_INTERFACE_MODE_RGMII_ID] = SPEED_1000,
+ [PHY_INTERFACE_MODE_RGMII_RXID] = SPEED_1000,
+ [PHY_INTERFACE_MODE_RGMII_TXID] = SPEED_1000,
+ [PHY_INTERFACE_MODE_RTBI] = SPEED_1000,
+ [PHY_INTERFACE_MODE_XGMII] = SPEED_10000
+};
+
+static struct mac_device *
+alloc_macdev(struct device *dev, size_t sizeof_priv,
+ void (*setup)(struct mac_device *mac_dev))
+{
+ struct mac_device *mac_dev;
+
+ mac_dev = devm_kzalloc(dev, sizeof(*mac_dev) + sizeof_priv, GFP_KERNEL);
+ if (!mac_dev) {
+ mac_dev = ERR_PTR(-ENOMEM);
+ } else {
+ mac_dev->dev = dev;
+ dev_set_drvdata(dev, mac_dev);
+ setup(mac_dev);
+ }
+
+ return mac_dev;
+}
+
+static struct platform_device *dpaa_eth_add_device(int fman_id,
+ struct mac_device *mac_dev,
+ struct device_node *node)
+{
+ struct platform_device *pdev;
+ struct dpaa_eth_data data;
+ static int dpaa_eth_dev_cnt;
+ int ret;
+
+ data.mac_dev = mac_dev;
+ data.mac_hw_id = mac_dev->cell_index;
+ data.fman_hw_id = fman_id;
+ data.mac_node = node;
+
+ mutex_lock(&eth_lock);
+
+ pdev = platform_device_alloc("dpaa-ethernet", dpaa_eth_dev_cnt);
+ if (!pdev) {
+ ret = -ENOMEM;
+ goto no_mem;
+ }
+
+ ret = platform_device_add_data(pdev, &data, sizeof(data));
+ if (ret)
+ goto err;
+
+ ret = platform_device_add(pdev);
+ if (ret)
+ goto err;
+
+ dpaa_eth_dev_cnt++;
+ mutex_unlock(&eth_lock);
+
+ return pdev;
+
+err:
+ platform_device_put(pdev);
+no_mem:
+ mutex_unlock(&eth_lock);
+
+ return ERR_PTR(ret);
+}
+
+static const struct of_device_id mac_match[] = {
+ [DTSEC] = {
+ .compatible = "fsl,fman-dtsec"
+ },
+ [XGMAC] = {
+ .compatible = "fsl,fman-xgec"
+ },
+ [MEMAC] = {
+ .compatible = "fsl,fman-memac"
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, mac_match);
+
+static int mac_probe(struct platform_device *_of_dev)
+{
+ int err, i, lenp;
+ struct device *dev;
+ struct device_node *mac_node, *dev_node;
+ struct mac_device *mac_dev;
+ struct platform_device *of_dev;
+ struct resource res;
+ const u8 *mac_addr;
+ const char *char_prop;
+ const u32 *u32_prop;
+ const struct of_device_id *match;
+ u8 fman_id;
+
+ const phandle *phandle_prop;
+
+ dev = &_of_dev->dev;
+ mac_node = dev->of_node;
+
+ match = of_match_device(mac_match, dev);
+ if (!match)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(mac_match) - 1 && match != mac_match + i;
+ i++)
+ ;
+ BUG_ON(i >= ARRAY_SIZE(mac_match) - 1);
+
+ mac_dev = alloc_macdev(dev, mac_sizeof_priv[i], mac_setup[i]);
+ if (IS_ERR(mac_dev)) {
+ err = PTR_ERR(mac_dev);
+ dev_err(dev, "alloc_macdev() = %d\n", err);
+ goto _return;
+ }
+
+ INIT_LIST_HEAD(&mac_dev->mc_addr_list);
+
+ /* Get the FM node */
+ dev_node = of_get_parent(mac_node);
+ if (!dev_node) {
+ dev_err(dev, "of_get_parent(%s) failed\n",
+ mac_node->full_name);
+ err = -EINVAL;
+ goto _return_dev_set_drvdata;
+ }
+
+ of_dev = of_find_device_by_node(dev_node);
+ if (!of_dev) {
+ dev_err(dev, "of_find_device_by_node(%s) failed\n",
+ dev_node->full_name);
+ err = -EINVAL;
+ goto _return_of_node_put;
+ }
+
+ /* Get the FMan cell-index */
+ u32_prop = of_get_property(dev_node, "cell-index", &lenp);
+ if (!u32_prop) {
+ dev_err(dev, "of_get_property(%s, cell-index) failed\n",
+ dev_node->full_name);
+ err = -EINVAL;
+ goto _return_of_node_put;
+ }
+ BUG_ON(lenp != sizeof(u32));
+ fman_id = (u8)*u32_prop + 1; /* cell-index 0 => FMan id 1 */
+
+ mac_dev->fm_dev = fm_bind(&of_dev->dev);
+ if (!mac_dev->fm_dev) {
+ dev_err(dev, "fm_bind(%s) failed\n", dev_node->full_name);
+ err = -ENODEV;
+ goto _return_of_node_put;
+ }
+
+ mac_dev->fm = (void *)fm_get_handle(mac_dev->fm_dev);
+ of_node_put(dev_node);
+
+ /* Get the address of the memory mapped registers */
+ err = of_address_to_resource(mac_node, 0, &res);
+ if (err < 0) {
+ dev_err(dev, "of_address_to_resource(%s) = %d\n",
+ mac_node->full_name, err);
+ goto _return_dev_set_drvdata;
+ }
+
+ mac_dev->res =
+ __devm_request_region(dev, fm_get_mem_region(mac_dev->fm_dev),
+ res.start, res.end + 1 - res.start,
+ "mac");
+ if (!mac_dev->res) {
+ dev_err(dev, "__devm_request_mem_region(mac) failed\n");
+ err = -EBUSY;
+ goto _return_dev_set_drvdata;
+ }
+
+ mac_dev->vaddr = devm_ioremap(dev, mac_dev->res->start,
+ mac_dev->res->end + 1
+ - mac_dev->res->start);
+ if (!mac_dev->vaddr) {
+ dev_err(dev, "devm_ioremap() failed\n");
+ err = -EIO;
+ goto _return_dev_set_drvdata;
+ }
+
+#define TBIPA_OFFSET 0x1c
+#define TBIPA_DEFAULT_ADDR 5 /* override if used as external PHY addr. */
+ mac_dev->tbi_node = of_parse_phandle(mac_node, "tbi-handle", 0);
+ if (mac_dev->tbi_node) {
+ u32 tbiaddr = TBIPA_DEFAULT_ADDR;
+
+ u32_prop = of_get_property(mac_dev->tbi_node, "reg", NULL);
+ if (u32_prop)
+ tbiaddr = *u32_prop;
+ out_be32(mac_dev->vaddr + TBIPA_OFFSET, tbiaddr);
+ }
+
+ if (!of_device_is_available(mac_node)) {
+ devm_iounmap(dev, mac_dev->vaddr);
+ __devm_release_region(dev, fm_get_mem_region(mac_dev->fm_dev),
+ res.start, res.end + 1 - res.start);
+ fm_unbind(mac_dev->fm_dev);
+ devm_kfree(dev, mac_dev);
+ dev_set_drvdata(dev, NULL);
+ return -ENODEV;
+ }
+
+ /* Get the cell-index */
+ u32_prop = of_get_property(mac_node, "cell-index", &lenp);
+ if (!u32_prop) {
+ dev_err(dev, "of_get_property(%s, cell-index) failed\n",
+ mac_node->full_name);
+ err = -EINVAL;
+ goto _return_dev_set_drvdata;
+ }
+ BUG_ON(lenp != sizeof(u32));
+ mac_dev->cell_index = (u8)*u32_prop;
+
+ /* Get the MAC address */
+ mac_addr = of_get_mac_address(mac_node);
+ if (!mac_addr) {
+ dev_err(dev, "of_get_mac_address(%s) failed\n",
+ mac_node->full_name);
+ err = -EINVAL;
+ goto _return_dev_set_drvdata;
+ }
+ memcpy(mac_dev->addr, mac_addr, sizeof(mac_dev->addr));
+
+ /* Get the port handles */
+ phandle_prop = of_get_property(mac_node, "fsl,fman-ports", &lenp);
+ if (!phandle_prop) {
+ dev_err(dev, "of_get_property(%s, fsl,fman-ports) failed\n",
+ mac_node->full_name);
+ err = -EINVAL;
+ goto _return_dev_set_drvdata;
+ }
+ BUG_ON(lenp != sizeof(phandle) * ARRAY_SIZE(mac_dev->port_dev));
+
+ for_each_port_device(i, mac_dev->port_dev) {
+ /* Find the port node */
+ dev_node = of_find_node_by_phandle(phandle_prop[i]);
+ if (!dev_node) {
+ dev_err(dev, "of_find_node_by_phandle() failed\n");
+ err = -EINVAL;
+ goto _return_of_node_put;
+ }
+
+ of_dev = of_find_device_by_node(dev_node);
+ if (!of_dev) {
+ dev_err(dev, "of_find_device_by_node(%s) failed\n",
+ dev_node->full_name);
+ err = -EINVAL;
+ goto _return_of_node_put;
+ }
+
+ mac_dev->port_dev[i] = fm_port_bind(&of_dev->dev);
+ if (!mac_dev->port_dev[i]) {
+ dev_err(dev, "dev_get_drvdata(%s) failed\n",
+ dev_node->full_name);
+ err = -EINVAL;
+ goto _return_of_node_put;
+ }
+ of_node_put(dev_node);
+ }
+
+ /* Get the PHY connection type */
+ char_prop = (const char *)of_get_property(mac_node,
+ "phy-connection-type", NULL);
+ if (!char_prop) {
+ dev_warn(dev,
+ "of_get_property(%s, phy-connection-type) failed. Defaulting to MII\n",
+ mac_node->full_name);
+ mac_dev->phy_if = PHY_INTERFACE_MODE_MII;
+ } else {
+ mac_dev->phy_if = str2phy(char_prop);
+ }
+
+ mac_dev->link = false;
+ mac_dev->fixed_link = false;
+ mac_dev->speed = phy2speed[mac_dev->phy_if];
+ mac_dev->max_speed = mac_dev->speed;
+ mac_dev->if_support = DTSEC_SUPPORTED;
+ /* We don't support half-duplex in SGMII mode */
+ if (strstr(char_prop, "sgmii"))
+ mac_dev->if_support &= ~(SUPPORTED_10baseT_Half |
+ SUPPORTED_100baseT_Half);
+
+ /* Gigabit support (no half-duplex) */
+ if (mac_dev->max_speed == 1000)
+ mac_dev->if_support |= SUPPORTED_1000baseT_Full;
+
+ /* The 10G interface only supports one mode */
+ if (strstr(char_prop, "xgmii"))
+ mac_dev->if_support = SUPPORTED_10000baseT_Full;
+
+ /* Get the rest of the PHY information */
+ mac_dev->phy_node = of_parse_phandle(mac_node, "phy-handle", 0);
+ if (!mac_dev->phy_node && of_phy_is_fixed_link(mac_node)) {
+ err = of_phy_register_fixed_link(mac_node);
+ if (err)
+ goto _return_dev_set_drvdata;
+ mac_dev->fixed_link = true;
+ mac_dev->phy_node = of_node_get(mac_node);
+ }
+
+ err = mac_dev->init(mac_dev);
+ if (err < 0) {
+ dev_err(dev, "mac_dev->init() = %d\n", err);
+ of_node_put(mac_dev->phy_node);
+ goto _return_dev_set_drvdata;
+ }
+
+ /* pause frame autonegotiation enabled */
+ mac_dev->autoneg_pause = true;
+
+ /* by intializing the values to false, force FMD to enable PAUSE frames
+ * on RX and TX
+ */
+ mac_dev->rx_pause_req = true;
+ mac_dev->tx_pause_req = true;
+ mac_dev->rx_pause_active = false;
+ mac_dev->tx_pause_active = false;
+ err = set_mac_active_pause(mac_dev, true, true);
+ if (err < 0)
+ dev_err(dev, "set_mac_active_pause() = %d\n", err);
+
+ dev_info(dev,
+ "FMan MAC address: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
+ mac_dev->addr[0], mac_dev->addr[1], mac_dev->addr[2],
+ mac_dev->addr[3], mac_dev->addr[4], mac_dev->addr[5]);
+
+ mac_dev->eth_dev = dpaa_eth_add_device(fman_id, mac_dev,
+ mac_node);
+ if (IS_ERR(mac_dev->eth_dev)) {
+ dev_err(dev, "failed to add Ethernet platform device for MAC %d\n",
+ mac_dev->cell_index);
+ mac_dev->eth_dev = NULL;
+ }
+
+ goto _return;
+
+_return_of_node_put:
+ of_node_put(dev_node);
+_return_dev_set_drvdata:
+ dev_set_drvdata(dev, NULL);
+_return:
+ return err;
+}
+
+static struct platform_driver mac_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .of_match_table = mac_match,
+ },
+ .probe = mac_probe,
+};
+
+builtin_platform_driver(mac_driver);
--
1.7.9.5

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