fsl/fman: Add FMan MAC driver
This patch adds the Ethernet MAC driver supporting the three different types of MACs: dTSEC, tGEC and mEMAC. Signed-off-by: Igal Liberman <igal.liberman@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
18a6c85fcc
commit
3933961682
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@ -1,6 +1,7 @@
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subdir-ccflags-y += -I$(srctree)/drivers/net/ethernet/freescale/fman
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obj-y += fsl_fman.o fsl_fman_mac.o
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obj-y += fsl_fman.o fsl_fman_mac.o fsl_mac.o
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fsl_fman-objs := fman_muram.o fman.o fman_sp.o fman_port.o
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fsl_fman_mac-objs := fman_dtsec.o fman_memac.o fman_tgec.o
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fsl_mac-objs += mac.o
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978
drivers/net/ethernet/freescale/fman/mac.c
Normal file
978
drivers/net/ethernet/freescale/fman/mac.c
Normal file
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@ -0,0 +1,978 @@
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/* Copyright 2008-2015 Freescale Semiconductor, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Freescale Semiconductor nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/of_address.h>
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#include <linux/of_platform.h>
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#include <linux/of_net.h>
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#include <linux/of_mdio.h>
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#include <linux/device.h>
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#include <linux/phy.h>
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#include <linux/netdevice.h>
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#include <linux/phy_fixed.h>
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#include <linux/etherdevice.h>
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#include <linux/libfdt_env.h>
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#include "mac.h"
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#include "fman_mac.h"
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#include "fman_dtsec.h"
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#include "fman_tgec.h"
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#include "fman_memac.h"
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_DESCRIPTION("FSL FMan MAC API based driver");
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struct mac_priv_s {
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struct device *dev;
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void __iomem *vaddr;
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u8 cell_index;
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phy_interface_t phy_if;
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struct fman *fman;
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struct device_node *phy_node;
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struct device_node *internal_phy_node;
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/* List of multicast addresses */
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struct list_head mc_addr_list;
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struct platform_device *eth_dev;
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struct fixed_phy_status *fixed_link;
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u16 speed;
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u16 max_speed;
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int (*enable)(struct fman_mac *mac_dev, enum comm_mode mode);
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int (*disable)(struct fman_mac *mac_dev, enum comm_mode mode);
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};
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struct mac_address {
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u8 addr[ETH_ALEN];
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struct list_head list;
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};
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static void mac_exception(void *handle, enum fman_mac_exceptions ex)
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{
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struct mac_device *mac_dev;
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struct mac_priv_s *priv;
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mac_dev = handle;
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priv = mac_dev->priv;
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if (ex == FM_MAC_EX_10G_RX_FIFO_OVFL) {
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/* don't flag RX FIFO after the first */
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mac_dev->set_exception(mac_dev->fman_mac,
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FM_MAC_EX_10G_RX_FIFO_OVFL, false);
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dev_err(priv->dev, "10G MAC got RX FIFO Error = %x\n", ex);
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}
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dev_dbg(priv->dev, "%s:%s() -> %d\n", KBUILD_BASENAME ".c",
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__func__, ex);
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}
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static void set_fman_mac_params(struct mac_device *mac_dev,
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struct fman_mac_params *params)
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{
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struct mac_priv_s *priv = mac_dev->priv;
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params->base_addr = (typeof(params->base_addr))
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devm_ioremap(priv->dev, mac_dev->res->start,
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resource_size(mac_dev->res));
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memcpy(¶ms->addr, mac_dev->addr, sizeof(mac_dev->addr));
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params->max_speed = priv->max_speed;
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params->phy_if = priv->phy_if;
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params->basex_if = false;
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params->mac_id = priv->cell_index;
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params->fm = (void *)priv->fman;
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params->exception_cb = mac_exception;
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params->event_cb = mac_exception;
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params->dev_id = mac_dev;
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params->internal_phy_node = priv->internal_phy_node;
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}
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static int tgec_initialization(struct mac_device *mac_dev)
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{
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int err;
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struct mac_priv_s *priv;
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struct fman_mac_params params;
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u32 version;
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priv = mac_dev->priv;
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set_fman_mac_params(mac_dev, ¶ms);
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mac_dev->fman_mac = tgec_config(¶ms);
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if (!mac_dev->fman_mac) {
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err = -EINVAL;
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goto _return;
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}
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err = tgec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
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if (err < 0)
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goto _return_fm_mac_free;
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err = tgec_init(mac_dev->fman_mac);
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if (err < 0)
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goto _return_fm_mac_free;
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/* For 10G MAC, disable Tx ECC exception */
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err = mac_dev->set_exception(mac_dev->fman_mac,
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FM_MAC_EX_10G_TX_ECC_ER, false);
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if (err < 0)
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goto _return_fm_mac_free;
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err = tgec_get_version(mac_dev->fman_mac, &version);
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if (err < 0)
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goto _return_fm_mac_free;
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dev_info(priv->dev, "FMan XGEC version: 0x%08x\n", version);
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goto _return;
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_return_fm_mac_free:
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tgec_free(mac_dev->fman_mac);
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_return:
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return err;
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}
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static int dtsec_initialization(struct mac_device *mac_dev)
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{
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int err;
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struct mac_priv_s *priv;
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struct fman_mac_params params;
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u32 version;
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priv = mac_dev->priv;
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set_fman_mac_params(mac_dev, ¶ms);
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mac_dev->fman_mac = dtsec_config(¶ms);
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if (!mac_dev->fman_mac) {
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err = -EINVAL;
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goto _return;
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}
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err = dtsec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
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if (err < 0)
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goto _return_fm_mac_free;
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err = dtsec_cfg_pad_and_crc(mac_dev->fman_mac, true);
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if (err < 0)
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goto _return_fm_mac_free;
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err = dtsec_init(mac_dev->fman_mac);
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if (err < 0)
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goto _return_fm_mac_free;
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/* For 1G MAC, disable by default the MIB counters overflow interrupt */
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err = mac_dev->set_exception(mac_dev->fman_mac,
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FM_MAC_EX_1G_RX_MIB_CNT_OVFL, false);
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if (err < 0)
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goto _return_fm_mac_free;
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err = dtsec_get_version(mac_dev->fman_mac, &version);
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if (err < 0)
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goto _return_fm_mac_free;
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dev_info(priv->dev, "FMan dTSEC version: 0x%08x\n", version);
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goto _return;
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_return_fm_mac_free:
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dtsec_free(mac_dev->fman_mac);
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_return:
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return err;
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}
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static int memac_initialization(struct mac_device *mac_dev)
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{
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int err;
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struct mac_priv_s *priv;
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struct fman_mac_params params;
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priv = mac_dev->priv;
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set_fman_mac_params(mac_dev, ¶ms);
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if (priv->max_speed == SPEED_10000)
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params.phy_if = PHY_INTERFACE_MODE_XGMII;
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mac_dev->fman_mac = memac_config(¶ms);
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if (!mac_dev->fman_mac) {
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err = -EINVAL;
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goto _return;
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}
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err = memac_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
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if (err < 0)
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goto _return_fm_mac_free;
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err = memac_cfg_reset_on_init(mac_dev->fman_mac, true);
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if (err < 0)
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goto _return_fm_mac_free;
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err = memac_cfg_fixed_link(mac_dev->fman_mac, priv->fixed_link);
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if (err < 0)
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goto _return_fm_mac_free;
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err = memac_init(mac_dev->fman_mac);
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if (err < 0)
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goto _return_fm_mac_free;
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dev_info(priv->dev, "FMan MEMAC\n");
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goto _return;
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_return_fm_mac_free:
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memac_free(mac_dev->fman_mac);
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_return:
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return err;
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}
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static int start(struct mac_device *mac_dev)
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{
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int err;
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struct phy_device *phy_dev = mac_dev->phy_dev;
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struct mac_priv_s *priv = mac_dev->priv;
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err = priv->enable(mac_dev->fman_mac, COMM_MODE_RX_AND_TX);
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if (!err && phy_dev)
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phy_start(phy_dev);
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return err;
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}
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static int stop(struct mac_device *mac_dev)
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{
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struct mac_priv_s *priv = mac_dev->priv;
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if (mac_dev->phy_dev)
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phy_stop(mac_dev->phy_dev);
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return priv->disable(mac_dev->fman_mac, COMM_MODE_RX_AND_TX);
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}
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static int set_multi(struct net_device *net_dev, struct mac_device *mac_dev)
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{
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struct mac_priv_s *priv;
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struct mac_address *old_addr, *tmp;
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struct netdev_hw_addr *ha;
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int err;
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enet_addr_t *addr;
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priv = mac_dev->priv;
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/* Clear previous address list */
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list_for_each_entry_safe(old_addr, tmp, &priv->mc_addr_list, list) {
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addr = (enet_addr_t *)old_addr->addr;
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err = mac_dev->remove_hash_mac_addr(mac_dev->fman_mac, addr);
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if (err < 0)
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return err;
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list_del(&old_addr->list);
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kfree(old_addr);
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}
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/* Add all the addresses from the new list */
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netdev_for_each_mc_addr(ha, net_dev) {
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addr = (enet_addr_t *)ha->addr;
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err = mac_dev->add_hash_mac_addr(mac_dev->fman_mac, addr);
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if (err < 0)
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return err;
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tmp = kmalloc(sizeof(*tmp), GFP_ATOMIC);
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if (!tmp)
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return -ENOMEM;
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ether_addr_copy(tmp->addr, ha->addr);
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list_add(&tmp->list, &priv->mc_addr_list);
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}
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return 0;
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}
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/**
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* fman_set_mac_active_pause
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* @mac_dev: A pointer to the MAC device
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* @rx: Pause frame setting for RX
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* @tx: Pause frame setting for TX
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*
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* Set the MAC RX/TX PAUSE frames settings
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*
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* Avoid redundant calls to FMD, if the MAC driver already contains the desired
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* active PAUSE settings. Otherwise, the new active settings should be reflected
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* in FMan.
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*
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* Return: 0 on success; Error code otherwise.
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*/
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int fman_set_mac_active_pause(struct mac_device *mac_dev, bool rx, bool tx)
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{
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struct fman_mac *fman_mac = mac_dev->fman_mac;
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int err = 0;
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if (rx != mac_dev->rx_pause_active) {
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err = mac_dev->set_rx_pause(fman_mac, rx);
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if (likely(err == 0))
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mac_dev->rx_pause_active = rx;
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}
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if (tx != mac_dev->tx_pause_active) {
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u16 pause_time = (tx ? FSL_FM_PAUSE_TIME_ENABLE :
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FSL_FM_PAUSE_TIME_DISABLE);
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err = mac_dev->set_tx_pause(fman_mac, 0, pause_time, 0);
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if (likely(err == 0))
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mac_dev->tx_pause_active = tx;
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}
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return err;
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}
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EXPORT_SYMBOL(fman_set_mac_active_pause);
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/**
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* fman_get_pause_cfg
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* @mac_dev: A pointer to the MAC device
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* @rx: Return value for RX setting
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* @tx: Return value for TX setting
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*
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* Determine the MAC RX/TX PAUSE frames settings based on PHY
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* autonegotiation or values set by eththool.
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*
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* Return: Pointer to FMan device.
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*/
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void fman_get_pause_cfg(struct mac_device *mac_dev, bool *rx_pause,
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bool *tx_pause)
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{
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struct phy_device *phy_dev = mac_dev->phy_dev;
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u16 lcl_adv, rmt_adv;
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u8 flowctrl;
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*rx_pause = *tx_pause = false;
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if (!phy_dev->duplex)
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return;
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/* If PAUSE autonegotiation is disabled, the TX/RX PAUSE settings
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* are those set by ethtool.
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*/
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if (!mac_dev->autoneg_pause) {
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*rx_pause = mac_dev->rx_pause_req;
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*tx_pause = mac_dev->tx_pause_req;
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return;
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}
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/* Else if PAUSE autonegotiation is enabled, the TX/RX PAUSE
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* settings depend on the result of the link negotiation.
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*/
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/* get local capabilities */
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lcl_adv = 0;
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if (phy_dev->advertising & ADVERTISED_Pause)
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lcl_adv |= ADVERTISE_PAUSE_CAP;
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if (phy_dev->advertising & ADVERTISED_Asym_Pause)
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lcl_adv |= ADVERTISE_PAUSE_ASYM;
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/* get link partner capabilities */
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rmt_adv = 0;
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if (phy_dev->pause)
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rmt_adv |= LPA_PAUSE_CAP;
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if (phy_dev->asym_pause)
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rmt_adv |= LPA_PAUSE_ASYM;
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/* Calculate TX/RX settings based on local and peer advertised
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* symmetric/asymmetric PAUSE capabilities.
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*/
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flowctrl = mii_resolve_flowctrl_fdx(lcl_adv, rmt_adv);
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if (flowctrl & FLOW_CTRL_RX)
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*rx_pause = true;
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if (flowctrl & FLOW_CTRL_TX)
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*tx_pause = true;
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}
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EXPORT_SYMBOL(fman_get_pause_cfg);
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static void adjust_link_void(struct net_device *net_dev)
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{
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}
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static void adjust_link_dtsec(struct net_device *net_dev)
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{
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struct device *dev = net_dev->dev.parent;
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struct dpaa_eth_data *eth_data = dev->platform_data;
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struct mac_device *mac_dev = eth_data->mac_dev;
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struct phy_device *phy_dev = mac_dev->phy_dev;
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struct fman_mac *fman_mac;
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bool rx_pause, tx_pause;
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int err;
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fman_mac = mac_dev->fman_mac;
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if (!phy_dev->link) {
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dtsec_restart_autoneg(fman_mac);
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return;
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}
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dtsec_adjust_link(fman_mac, phy_dev->speed);
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fman_get_pause_cfg(mac_dev, &rx_pause, &tx_pause);
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err = fman_set_mac_active_pause(mac_dev, rx_pause, tx_pause);
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if (err < 0)
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netdev_err(net_dev, "fman_set_mac_active_pause() = %d\n", err);
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}
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|
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static void adjust_link_memac(struct net_device *net_dev)
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{
|
||||
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 fman_mac *fman_mac;
|
||||
bool rx_pause, tx_pause;
|
||||
int err;
|
||||
|
||||
fman_mac = mac_dev->fman_mac;
|
||||
memac_adjust_link(fman_mac, phy_dev->speed);
|
||||
|
||||
fman_get_pause_cfg(mac_dev, &rx_pause, &tx_pause);
|
||||
err = fman_set_mac_active_pause(mac_dev, rx_pause, tx_pause);
|
||||
if (err < 0)
|
||||
netdev_err(net_dev, "fman_set_mac_active_pause() = %d\n", err);
|
||||
}
|
||||
|
||||
/* Initializes driver's PHY state, and attaches to the PHY.
|
||||
* Returns 0 on success.
|
||||
*/
|
||||
static int init_phy(struct net_device *net_dev,
|
||||
struct mac_device *mac_dev,
|
||||
void (*adj_lnk)(struct net_device *))
|
||||
{
|
||||
struct phy_device *phy_dev;
|
||||
struct mac_priv_s *priv = mac_dev->priv;
|
||||
|
||||
phy_dev = of_phy_connect(net_dev, priv->phy_node, adj_lnk, 0,
|
||||
priv->phy_if);
|
||||
if (!phy_dev) {
|
||||
netdev_err(net_dev, "Could not connect to PHY\n");
|
||||
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 dtsec_init_phy(struct net_device *net_dev,
|
||||
struct mac_device *mac_dev)
|
||||
{
|
||||
return init_phy(net_dev, mac_dev, &adjust_link_dtsec);
|
||||
}
|
||||
|
||||
static int tgec_init_phy(struct net_device *net_dev,
|
||||
struct mac_device *mac_dev)
|
||||
{
|
||||
return init_phy(net_dev, mac_dev, adjust_link_void);
|
||||
}
|
||||
|
||||
static int memac_init_phy(struct net_device *net_dev,
|
||||
struct mac_device *mac_dev)
|
||||
{
|
||||
return init_phy(net_dev, mac_dev, &adjust_link_memac);
|
||||
}
|
||||
|
||||
static void setup_dtsec(struct mac_device *mac_dev)
|
||||
{
|
||||
mac_dev->init_phy = dtsec_init_phy;
|
||||
mac_dev->init = dtsec_initialization;
|
||||
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_tx_pause = dtsec_set_tx_pause_frames;
|
||||
mac_dev->set_rx_pause = dtsec_accept_rx_pause_frames;
|
||||
mac_dev->set_exception = dtsec_set_exception;
|
||||
mac_dev->set_multi = set_multi;
|
||||
mac_dev->start = start;
|
||||
mac_dev->stop = stop;
|
||||
|
||||
mac_dev->priv->enable = dtsec_enable;
|
||||
mac_dev->priv->disable = dtsec_disable;
|
||||
}
|
||||
|
||||
static void setup_tgec(struct mac_device *mac_dev)
|
||||
{
|
||||
mac_dev->init_phy = tgec_init_phy;
|
||||
mac_dev->init = tgec_initialization;
|
||||
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_tx_pause = tgec_set_tx_pause_frames;
|
||||
mac_dev->set_rx_pause = tgec_accept_rx_pause_frames;
|
||||
mac_dev->set_exception = tgec_set_exception;
|
||||
mac_dev->set_multi = set_multi;
|
||||
mac_dev->start = start;
|
||||
mac_dev->stop = stop;
|
||||
|
||||
mac_dev->priv->enable = tgec_enable;
|
||||
mac_dev->priv->disable = tgec_disable;
|
||||
}
|
||||
|
||||
static void setup_memac(struct mac_device *mac_dev)
|
||||
{
|
||||
mac_dev->init_phy = memac_init_phy;
|
||||
mac_dev->init = memac_initialization;
|
||||
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_tx_pause = memac_set_tx_pause_frames;
|
||||
mac_dev->set_rx_pause = memac_accept_rx_pause_frames;
|
||||
mac_dev->set_exception = memac_set_exception;
|
||||
mac_dev->set_multi = set_multi;
|
||||
mac_dev->start = start;
|
||||
mac_dev->stop = stop;
|
||||
|
||||
mac_dev->priv->enable = memac_enable;
|
||||
mac_dev->priv->disable = memac_disable;
|
||||
}
|
||||
|
||||
#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 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;
|
||||
struct mac_priv_s *priv;
|
||||
static int dpaa_eth_dev_cnt;
|
||||
int ret;
|
||||
|
||||
priv = mac_dev->priv;
|
||||
|
||||
data.mac_dev = mac_dev;
|
||||
data.mac_hw_id = priv->cell_index;
|
||||
data.fman_hw_id = fman_id;
|
||||
data.mac_node = node;
|
||||
|
||||
mutex_lock(ð_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(ð_lock);
|
||||
|
||||
return pdev;
|
||||
|
||||
err:
|
||||
platform_device_put(pdev);
|
||||
no_mem:
|
||||
mutex_unlock(ð_lock);
|
||||
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
static const struct of_device_id mac_match[] = {
|
||||
{ .compatible = "fsl,fman-dtsec" },
|
||||
{ .compatible = "fsl,fman-xgec" },
|
||||
{ .compatible = "fsl,fman-memac" },
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, mac_match);
|
||||
|
||||
static int mac_probe(struct platform_device *_of_dev)
|
||||
{
|
||||
int err, i, lenp, nph;
|
||||
struct device *dev;
|
||||
struct device_node *mac_node, *dev_node;
|
||||
struct mac_device *mac_dev;
|
||||
struct platform_device *of_dev;
|
||||
struct resource res;
|
||||
struct mac_priv_s *priv;
|
||||
const u8 *mac_addr;
|
||||
const char *char_prop;
|
||||
const u32 *u32_prop;
|
||||
u8 fman_id;
|
||||
|
||||
dev = &_of_dev->dev;
|
||||
mac_node = dev->of_node;
|
||||
|
||||
mac_dev = devm_kzalloc(dev, sizeof(*mac_dev), GFP_KERNEL);
|
||||
if (!mac_dev) {
|
||||
err = -ENOMEM;
|
||||
dev_err(dev, "devm_kzalloc() = %d\n", err);
|
||||
goto _return;
|
||||
}
|
||||
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv) {
|
||||
err = -ENOMEM;
|
||||
goto _return;
|
||||
}
|
||||
|
||||
/* Save private information */
|
||||
mac_dev->priv = priv;
|
||||
priv->dev = dev;
|
||||
|
||||
if (of_device_is_compatible(mac_node, "fsl,fman-dtsec")) {
|
||||
setup_dtsec(mac_dev);
|
||||
priv->internal_phy_node = of_parse_phandle(mac_node,
|
||||
"tbi-handle", 0);
|
||||
} else if (of_device_is_compatible(mac_node, "fsl,fman-xgec")) {
|
||||
setup_tgec(mac_dev);
|
||||
} else if (of_device_is_compatible(mac_node, "fsl,fman-memac")) {
|
||||
setup_memac(mac_dev);
|
||||
priv->internal_phy_node = of_parse_phandle(mac_node,
|
||||
"pcsphy-handle", 0);
|
||||
} else {
|
||||
dev_err(dev, "MAC node (%s) contains unsupported MAC\n",
|
||||
mac_node->full_name);
|
||||
err = -EINVAL;
|
||||
goto _return;
|
||||
}
|
||||
|
||||
/* Register mac_dev */
|
||||
dev_set_drvdata(dev, mac_dev);
|
||||
|
||||
INIT_LIST_HEAD(&priv->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;
|
||||
}
|
||||
WARN_ON(lenp != sizeof(u32));
|
||||
/* cell-index 0 => FMan id 1 */
|
||||
fman_id = (u8)(fdt32_to_cpu(u32_prop[0]) + 1);
|
||||
|
||||
priv->fman = fman_bind(&of_dev->dev);
|
||||
if (!priv->fman) {
|
||||
dev_err(dev, "fman_bind(%s) failed\n", dev_node->full_name);
|
||||
err = -ENODEV;
|
||||
goto _return_of_node_put;
|
||||
}
|
||||
|
||||
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,
|
||||
fman_get_mem_region(priv->fman),
|
||||
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;
|
||||
}
|
||||
|
||||
priv->vaddr = devm_ioremap(dev, mac_dev->res->start,
|
||||
mac_dev->res->end + 1 - mac_dev->res->start);
|
||||
if (!priv->vaddr) {
|
||||
dev_err(dev, "devm_ioremap() failed\n");
|
||||
err = -EIO;
|
||||
goto _return_dev_set_drvdata;
|
||||
}
|
||||
|
||||
if (!of_device_is_available(mac_node)) {
|
||||
devm_iounmap(dev, priv->vaddr);
|
||||
__devm_release_region(dev, fman_get_mem_region(priv->fman),
|
||||
res.start, res.end + 1 - res.start);
|
||||
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;
|
||||
}
|
||||
WARN_ON(lenp != sizeof(u32));
|
||||
priv->cell_index = (u8)fdt32_to_cpu(u32_prop[0]);
|
||||
|
||||
/* 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 */
|
||||
nph = of_count_phandle_with_args(mac_node, "fsl,fman-ports", NULL);
|
||||
if (unlikely(nph < 0)) {
|
||||
dev_err(dev, "of_count_phandle_with_args(%s, fsl,fman-ports) failed\n",
|
||||
mac_node->full_name);
|
||||
err = nph;
|
||||
goto _return_dev_set_drvdata;
|
||||
}
|
||||
|
||||
if (nph != ARRAY_SIZE(mac_dev->port)) {
|
||||
dev_err(dev, "Not supported number of fman-ports handles of mac node %s from device tree\n",
|
||||
mac_node->full_name);
|
||||
err = -EINVAL;
|
||||
goto _return_dev_set_drvdata;
|
||||
}
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) {
|
||||
/* Find the port node */
|
||||
dev_node = of_parse_phandle(mac_node, "fsl,fman-ports", i);
|
||||
if (!dev_node) {
|
||||
dev_err(dev, "of_parse_phandle(%s, fsl,fman-ports) failed\n",
|
||||
mac_node->full_name);
|
||||
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[i] = fman_port_bind(&of_dev->dev);
|
||||
if (!mac_dev->port[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);
|
||||
priv->phy_if = PHY_INTERFACE_MODE_MII;
|
||||
} else {
|
||||
priv->phy_if = str2phy(char_prop);
|
||||
}
|
||||
|
||||
priv->speed = phy2speed[priv->phy_if];
|
||||
priv->max_speed = priv->speed;
|
||||
mac_dev->if_support = DTSEC_SUPPORTED;
|
||||
/* We don't support half-duplex in SGMII mode */
|
||||
if (priv->phy_if == PHY_INTERFACE_MODE_SGMII)
|
||||
mac_dev->if_support &= ~(SUPPORTED_10baseT_Half |
|
||||
SUPPORTED_100baseT_Half);
|
||||
|
||||
/* Gigabit support (no half-duplex) */
|
||||
if (priv->max_speed == 1000)
|
||||
mac_dev->if_support |= SUPPORTED_1000baseT_Full;
|
||||
|
||||
/* The 10G interface only supports one mode */
|
||||
if (priv->phy_if == PHY_INTERFACE_MODE_XGMII)
|
||||
mac_dev->if_support = SUPPORTED_10000baseT_Full;
|
||||
|
||||
/* Get the rest of the PHY information */
|
||||
priv->phy_node = of_parse_phandle(mac_node, "phy-handle", 0);
|
||||
if (!priv->phy_node && of_phy_is_fixed_link(mac_node)) {
|
||||
struct phy_device *phy;
|
||||
|
||||
err = of_phy_register_fixed_link(mac_node);
|
||||
if (err)
|
||||
goto _return_dev_set_drvdata;
|
||||
|
||||
priv->fixed_link = kzalloc(sizeof(*priv->fixed_link),
|
||||
GFP_KERNEL);
|
||||
if (!priv->fixed_link)
|
||||
goto _return_dev_set_drvdata;
|
||||
|
||||
priv->phy_node = of_node_get(mac_node);
|
||||
phy = of_phy_find_device(priv->phy_node);
|
||||
if (!phy)
|
||||
goto _return_dev_set_drvdata;
|
||||
|
||||
priv->fixed_link->link = phy->link;
|
||||
priv->fixed_link->speed = phy->speed;
|
||||
priv->fixed_link->duplex = phy->duplex;
|
||||
priv->fixed_link->pause = phy->pause;
|
||||
priv->fixed_link->asym_pause = phy->asym_pause;
|
||||
}
|
||||
|
||||
err = mac_dev->init(mac_dev);
|
||||
if (err < 0) {
|
||||
dev_err(dev, "mac_dev->init() = %d\n", err);
|
||||
of_node_put(priv->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 = fman_set_mac_active_pause(mac_dev, true, true);
|
||||
if (err < 0)
|
||||
dev_err(dev, "fman_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]);
|
||||
|
||||
priv->eth_dev = dpaa_eth_add_device(fman_id, mac_dev, mac_node);
|
||||
if (IS_ERR(priv->eth_dev)) {
|
||||
dev_err(dev, "failed to add Ethernet platform device for MAC %d\n",
|
||||
priv->cell_index);
|
||||
priv->eth_dev = NULL;
|
||||
}
|
||||
|
||||
goto _return;
|
||||
|
||||
_return_of_node_put:
|
||||
of_node_put(dev_node);
|
||||
_return_dev_set_drvdata:
|
||||
kfree(priv->fixed_link);
|
||||
kfree(priv);
|
||||
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);
|
97
drivers/net/ethernet/freescale/fman/mac.h
Normal file
97
drivers/net/ethernet/freescale/fman/mac.h
Normal file
|
@ -0,0 +1,97 @@
|
|||
/* 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>
|
||||
#include <linux/if_ether.h>
|
||||
#include <linux/phy.h>
|
||||
#include <linux/list.h>
|
||||
|
||||
#include "fman_port.h"
|
||||
#include "fman.h"
|
||||
#include "fman_mac.h"
|
||||
|
||||
struct fman_mac;
|
||||
struct mac_priv_s;
|
||||
|
||||
struct mac_device {
|
||||
struct resource *res;
|
||||
u8 addr[ETH_ALEN];
|
||||
struct fman_port *port[2];
|
||||
u32 if_support;
|
||||
struct phy_device *phy_dev;
|
||||
|
||||
bool autoneg_pause;
|
||||
bool rx_pause_req;
|
||||
bool tx_pause_req;
|
||||
bool rx_pause_active;
|
||||
bool tx_pause_active;
|
||||
bool promisc;
|
||||
|
||||
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 fman_mac *mac_dev, bool enable);
|
||||
int (*change_addr)(struct fman_mac *mac_dev, enet_addr_t *enet_addr);
|
||||
int (*set_multi)(struct net_device *net_dev,
|
||||
struct mac_device *mac_dev);
|
||||
int (*set_rx_pause)(struct fman_mac *mac_dev, bool en);
|
||||
int (*set_tx_pause)(struct fman_mac *mac_dev, u8 priority,
|
||||
u16 pause_time, u16 thresh_time);
|
||||
int (*set_exception)(struct fman_mac *mac_dev,
|
||||
enum fman_mac_exceptions exception, bool enable);
|
||||
int (*add_hash_mac_addr)(struct fman_mac *mac_dev,
|
||||
enet_addr_t *eth_addr);
|
||||
int (*remove_hash_mac_addr)(struct fman_mac *mac_dev,
|
||||
enet_addr_t *eth_addr);
|
||||
|
||||
struct fman_mac *fman_mac;
|
||||
struct mac_priv_s *priv;
|
||||
};
|
||||
|
||||
struct dpaa_eth_data {
|
||||
struct device_node *mac_node;
|
||||
struct mac_device *mac_dev;
|
||||
int mac_hw_id;
|
||||
int fman_hw_id;
|
||||
};
|
||||
|
||||
extern const char *mac_driver_description;
|
||||
|
||||
int fman_set_mac_active_pause(struct mac_device *mac_dev, bool rx, bool tx);
|
||||
|
||||
void fman_get_pause_cfg(struct mac_device *mac_dev, bool *rx_pause,
|
||||
bool *tx_pause);
|
||||
|
||||
#endif /* __MAC_H */
|
Loading…
Reference in a new issue