/* 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 <linux/netdevice.h>
|
#include <linux/phy_fixed.h>
|
#include <linux/etherdevice.h>
|
#include <linux/libfdt_env.h>
|
|
#include "mac.h"
|
#include "fman_mac.h"
|
#include "fman_dtsec.h"
|
#include "fman_tgec.h"
|
#include "fman_memac.h"
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
MODULE_DESCRIPTION("FSL FMan MAC API based driver");
|
|
struct mac_priv_s {
|
struct device *dev;
|
void __iomem *vaddr;
|
u8 cell_index;
|
struct fman *fman;
|
struct device_node *internal_phy_node;
|
/* List of multicast addresses */
|
struct list_head mc_addr_list;
|
struct platform_device *eth_dev;
|
struct fixed_phy_status *fixed_link;
|
u16 speed;
|
u16 max_speed;
|
|
int (*enable)(struct fman_mac *mac_dev, enum comm_mode mode);
|
int (*disable)(struct fman_mac *mac_dev, enum comm_mode mode);
|
};
|
|
struct mac_address {
|
u8 addr[ETH_ALEN];
|
struct list_head list;
|
};
|
|
static void mac_exception(void *handle, enum fman_mac_exceptions ex)
|
{
|
struct mac_device *mac_dev;
|
struct mac_priv_s *priv;
|
|
mac_dev = handle;
|
priv = mac_dev->priv;
|
|
if (ex == FM_MAC_EX_10G_RX_FIFO_OVFL) {
|
/* don't flag RX FIFO after the first */
|
mac_dev->set_exception(mac_dev->fman_mac,
|
FM_MAC_EX_10G_RX_FIFO_OVFL, false);
|
dev_err(priv->dev, "10G MAC got RX FIFO Error = %x\n", ex);
|
}
|
|
dev_dbg(priv->dev, "%s:%s() -> %d\n", KBUILD_BASENAME ".c",
|
__func__, ex);
|
}
|
|
static int set_fman_mac_params(struct mac_device *mac_dev,
|
struct fman_mac_params *params)
|
{
|
struct mac_priv_s *priv = mac_dev->priv;
|
|
params->base_addr = (typeof(params->base_addr))
|
devm_ioremap(priv->dev, mac_dev->res->start,
|
resource_size(mac_dev->res));
|
if (!params->base_addr)
|
return -ENOMEM;
|
|
memcpy(¶ms->addr, mac_dev->addr, sizeof(mac_dev->addr));
|
params->max_speed = priv->max_speed;
|
params->phy_if = mac_dev->phy_if;
|
params->basex_if = false;
|
params->mac_id = priv->cell_index;
|
params->fm = (void *)priv->fman;
|
params->exception_cb = mac_exception;
|
params->event_cb = mac_exception;
|
params->dev_id = mac_dev;
|
params->internal_phy_node = priv->internal_phy_node;
|
|
return 0;
|
}
|
|
static int tgec_initialization(struct mac_device *mac_dev)
|
{
|
int err;
|
struct mac_priv_s *priv;
|
struct fman_mac_params params;
|
u32 version;
|
|
priv = mac_dev->priv;
|
|
err = set_fman_mac_params(mac_dev, ¶ms);
|
if (err)
|
goto _return;
|
|
mac_dev->fman_mac = tgec_config(¶ms);
|
if (!mac_dev->fman_mac) {
|
err = -EINVAL;
|
goto _return;
|
}
|
|
err = tgec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
err = tgec_init(mac_dev->fman_mac);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
/* For 10G MAC, disable Tx ECC exception */
|
err = mac_dev->set_exception(mac_dev->fman_mac,
|
FM_MAC_EX_10G_TX_ECC_ER, false);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
err = tgec_get_version(mac_dev->fman_mac, &version);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
dev_info(priv->dev, "FMan XGEC version: 0x%08x\n", version);
|
|
goto _return;
|
|
_return_fm_mac_free:
|
tgec_free(mac_dev->fman_mac);
|
|
_return:
|
return err;
|
}
|
|
static int dtsec_initialization(struct mac_device *mac_dev)
|
{
|
int err;
|
struct mac_priv_s *priv;
|
struct fman_mac_params params;
|
u32 version;
|
|
priv = mac_dev->priv;
|
|
err = set_fman_mac_params(mac_dev, ¶ms);
|
if (err)
|
goto _return;
|
|
mac_dev->fman_mac = dtsec_config(¶ms);
|
if (!mac_dev->fman_mac) {
|
err = -EINVAL;
|
goto _return;
|
}
|
|
err = dtsec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
err = dtsec_cfg_pad_and_crc(mac_dev->fman_mac, true);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
err = dtsec_init(mac_dev->fman_mac);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
/* For 1G MAC, disable by default the MIB counters overflow interrupt */
|
err = mac_dev->set_exception(mac_dev->fman_mac,
|
FM_MAC_EX_1G_RX_MIB_CNT_OVFL, false);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
err = dtsec_get_version(mac_dev->fman_mac, &version);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
dev_info(priv->dev, "FMan dTSEC version: 0x%08x\n", version);
|
|
goto _return;
|
|
_return_fm_mac_free:
|
dtsec_free(mac_dev->fman_mac);
|
|
_return:
|
return err;
|
}
|
|
static int memac_initialization(struct mac_device *mac_dev)
|
{
|
int err;
|
struct mac_priv_s *priv;
|
struct fman_mac_params params;
|
|
priv = mac_dev->priv;
|
|
err = set_fman_mac_params(mac_dev, ¶ms);
|
if (err)
|
goto _return;
|
|
if (priv->max_speed == SPEED_10000)
|
params.phy_if = PHY_INTERFACE_MODE_XGMII;
|
|
mac_dev->fman_mac = memac_config(¶ms);
|
if (!mac_dev->fman_mac) {
|
err = -EINVAL;
|
goto _return;
|
}
|
|
err = memac_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
err = memac_cfg_reset_on_init(mac_dev->fman_mac, true);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
err = memac_cfg_fixed_link(mac_dev->fman_mac, priv->fixed_link);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
err = memac_init(mac_dev->fman_mac);
|
if (err < 0)
|
goto _return_fm_mac_free;
|
|
dev_info(priv->dev, "FMan MEMAC\n");
|
|
goto _return;
|
|
_return_fm_mac_free:
|
memac_free(mac_dev->fman_mac);
|
|
_return:
|
return err;
|
}
|
|
static int start(struct mac_device *mac_dev)
|
{
|
int err;
|
struct phy_device *phy_dev = mac_dev->phy_dev;
|
struct mac_priv_s *priv = mac_dev->priv;
|
|
err = priv->enable(mac_dev->fman_mac, COMM_MODE_RX_AND_TX);
|
if (!err && phy_dev)
|
phy_start(phy_dev);
|
|
return err;
|
}
|
|
static int stop(struct mac_device *mac_dev)
|
{
|
struct mac_priv_s *priv = mac_dev->priv;
|
|
if (mac_dev->phy_dev)
|
phy_stop(mac_dev->phy_dev);
|
|
return priv->disable(mac_dev->fman_mac, COMM_MODE_RX_AND_TX);
|
}
|
|
static int set_multi(struct net_device *net_dev, struct mac_device *mac_dev)
|
{
|
struct mac_priv_s *priv;
|
struct mac_address *old_addr, *tmp;
|
struct netdev_hw_addr *ha;
|
int err;
|
enet_addr_t *addr;
|
|
priv = mac_dev->priv;
|
|
/* Clear previous address list */
|
list_for_each_entry_safe(old_addr, tmp, &priv->mc_addr_list, list) {
|
addr = (enet_addr_t *)old_addr->addr;
|
err = mac_dev->remove_hash_mac_addr(mac_dev->fman_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_dev->fman_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, &priv->mc_addr_list);
|
}
|
return 0;
|
}
|
|
/**
|
* fman_set_mac_active_pause
|
* @mac_dev: A pointer to the MAC device
|
* @rx: Pause frame setting for RX
|
* @tx: Pause frame setting for TX
|
*
|
* Set the MAC RX/TX PAUSE frames settings
|
*
|
* 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.
|
*
|
* Return: 0 on success; Error code otherwise.
|
*/
|
int fman_set_mac_active_pause(struct mac_device *mac_dev, bool rx, bool tx)
|
{
|
struct fman_mac *fman_mac = mac_dev->fman_mac;
|
int err = 0;
|
|
if (rx != mac_dev->rx_pause_active) {
|
err = mac_dev->set_rx_pause(fman_mac, 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(fman_mac, 0, pause_time, 0);
|
|
if (likely(err == 0))
|
mac_dev->tx_pause_active = tx;
|
}
|
|
return err;
|
}
|
EXPORT_SYMBOL(fman_set_mac_active_pause);
|
|
/**
|
* fman_get_pause_cfg
|
* @mac_dev: A pointer to the MAC device
|
* @rx_pause: Return value for RX setting
|
* @tx_pause: Return value for TX setting
|
*
|
* Determine the MAC RX/TX PAUSE frames settings based on PHY
|
* autonegotiation or values set by eththool.
|
*
|
* Return: Pointer to FMan device.
|
*/
|
void fman_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 = linkmode_adv_to_lcl_adv_t(phy_dev->advertising);
|
|
/* 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(fman_get_pause_cfg);
|
|
static void adjust_link_void(struct mac_device *mac_dev)
|
{
|
}
|
|
static void adjust_link_dtsec(struct mac_device *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;
|
if (!phy_dev->link) {
|
dtsec_restart_autoneg(fman_mac);
|
|
return;
|
}
|
|
dtsec_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)
|
dev_err(mac_dev->priv->dev, "fman_set_mac_active_pause() = %d\n",
|
err);
|
}
|
|
static void adjust_link_memac(struct mac_device *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)
|
dev_err(mac_dev->priv->dev, "fman_set_mac_active_pause() = %d\n",
|
err);
|
}
|
|
static void setup_dtsec(struct mac_device *mac_dev)
|
{
|
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_allmulti = dtsec_set_allmulti;
|
mac_dev->set_tstamp = dtsec_set_tstamp;
|
mac_dev->set_multi = set_multi;
|
mac_dev->start = start;
|
mac_dev->stop = stop;
|
mac_dev->adjust_link = adjust_link_dtsec;
|
mac_dev->priv->enable = dtsec_enable;
|
mac_dev->priv->disable = dtsec_disable;
|
}
|
|
static void setup_tgec(struct mac_device *mac_dev)
|
{
|
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_allmulti = tgec_set_allmulti;
|
mac_dev->set_tstamp = tgec_set_tstamp;
|
mac_dev->set_multi = set_multi;
|
mac_dev->start = start;
|
mac_dev->stop = stop;
|
mac_dev->adjust_link = adjust_link_void;
|
mac_dev->priv->enable = tgec_enable;
|
mac_dev->priv->disable = tgec_disable;
|
}
|
|
static void setup_memac(struct mac_device *mac_dev)
|
{
|
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_allmulti = memac_set_allmulti;
|
mac_dev->set_tstamp = memac_set_tstamp;
|
mac_dev->set_multi = set_multi;
|
mac_dev->start = start;
|
mac_dev->stop = stop;
|
mac_dev->adjust_link = adjust_link_memac;
|
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 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_QSGMII] = 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 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;
|
|
mutex_lock(ð_lock);
|
pdev = platform_device_alloc("dpaa-ethernet", dpaa_eth_dev_cnt);
|
if (!pdev) {
|
ret = -ENOMEM;
|
goto no_mem;
|
}
|
|
pdev->dev.parent = priv->dev;
|
|
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, 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;
|
u32 val;
|
u8 fman_id;
|
phy_interface_t phy_if;
|
|
dev = &_of_dev->dev;
|
mac_node = dev->of_node;
|
|
mac_dev = devm_kzalloc(dev, sizeof(*mac_dev), GFP_KERNEL);
|
if (!mac_dev) {
|
err = -ENOMEM;
|
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 (%pOF) contains unsupported MAC\n",
|
mac_node);
|
err = -EINVAL;
|
goto _return;
|
}
|
|
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(%pOF) failed\n",
|
mac_node);
|
err = -EINVAL;
|
goto _return_of_get_parent;
|
}
|
|
of_dev = of_find_device_by_node(dev_node);
|
if (!of_dev) {
|
dev_err(dev, "of_find_device_by_node(%pOF) failed\n", dev_node);
|
err = -EINVAL;
|
goto _return_of_node_put;
|
}
|
|
/* Get the FMan cell-index */
|
err = of_property_read_u32(dev_node, "cell-index", &val);
|
if (err) {
|
dev_err(dev, "failed to read cell-index for %pOF\n", dev_node);
|
err = -EINVAL;
|
goto _return_of_node_put;
|
}
|
/* cell-index 0 => FMan id 1 */
|
fman_id = (u8)(val + 1);
|
|
priv->fman = fman_bind(&of_dev->dev);
|
if (!priv->fman) {
|
dev_err(dev, "fman_bind(%pOF) failed\n", dev_node);
|
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(%pOF) = %d\n",
|
mac_node, err);
|
goto _return_of_get_parent;
|
}
|
|
mac_dev->res = __devm_request_region(dev,
|
fman_get_mem_region(priv->fman),
|
res.start, resource_size(&res),
|
"mac");
|
if (!mac_dev->res) {
|
dev_err(dev, "__devm_request_mem_region(mac) failed\n");
|
err = -EBUSY;
|
goto _return_of_get_parent;
|
}
|
|
priv->vaddr = devm_ioremap(dev, mac_dev->res->start,
|
resource_size(mac_dev->res));
|
if (!priv->vaddr) {
|
dev_err(dev, "devm_ioremap() failed\n");
|
err = -EIO;
|
goto _return_of_get_parent;
|
}
|
|
if (!of_device_is_available(mac_node)) {
|
err = -ENODEV;
|
goto _return_of_get_parent;
|
}
|
|
/* Get the cell-index */
|
err = of_property_read_u32(mac_node, "cell-index", &val);
|
if (err) {
|
dev_err(dev, "failed to read cell-index for %pOF\n", mac_node);
|
err = -EINVAL;
|
goto _return_of_get_parent;
|
}
|
priv->cell_index = (u8)val;
|
|
/* Get the MAC address */
|
mac_addr = of_get_mac_address(mac_node);
|
if (IS_ERR(mac_addr))
|
dev_warn(dev, "of_get_mac_address(%pOF) failed\n", mac_node);
|
else
|
ether_addr_copy(mac_dev->addr, mac_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(%pOF, fsl,fman-ports) failed\n",
|
mac_node);
|
err = nph;
|
goto _return_of_get_parent;
|
}
|
|
if (nph != ARRAY_SIZE(mac_dev->port)) {
|
dev_err(dev, "Not supported number of fman-ports handles of mac node %pOF from device tree\n",
|
mac_node);
|
err = -EINVAL;
|
goto _return_of_get_parent;
|
}
|
|
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(%pOF, fsl,fman-ports) failed\n",
|
mac_node);
|
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(%pOF) failed\n",
|
dev_node);
|
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(%pOF) failed\n",
|
dev_node);
|
err = -EINVAL;
|
goto _return_of_node_put;
|
}
|
of_node_put(dev_node);
|
}
|
|
/* Get the PHY connection type */
|
err = of_get_phy_mode(mac_node, &phy_if);
|
if (err) {
|
dev_warn(dev,
|
"of_get_phy_mode() for %pOF failed. Defaulting to SGMII\n",
|
mac_node);
|
phy_if = PHY_INTERFACE_MODE_SGMII;
|
}
|
mac_dev->phy_if = phy_if;
|
|
priv->speed = phy2speed[mac_dev->phy_if];
|
priv->max_speed = priv->speed;
|
mac_dev->if_support = DTSEC_SUPPORTED;
|
/* We don't support half-duplex in SGMII mode */
|
if (mac_dev->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 (mac_dev->phy_if == PHY_INTERFACE_MODE_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)) {
|
struct phy_device *phy;
|
|
err = of_phy_register_fixed_link(mac_node);
|
if (err)
|
goto _return_of_get_parent;
|
|
priv->fixed_link = kzalloc(sizeof(*priv->fixed_link),
|
GFP_KERNEL);
|
if (!priv->fixed_link) {
|
err = -ENOMEM;
|
goto _return_of_get_parent;
|
}
|
|
mac_dev->phy_node = of_node_get(mac_node);
|
phy = of_phy_find_device(mac_dev->phy_node);
|
if (!phy) {
|
err = -EINVAL;
|
of_node_put(mac_dev->phy_node);
|
goto _return_of_get_parent;
|
}
|
|
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;
|
|
put_device(&phy->mdio.dev);
|
}
|
|
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_of_get_parent;
|
}
|
|
/* 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);
|
|
if (!IS_ERR(mac_addr))
|
dev_info(dev, "FMan MAC address: %pM\n", mac_dev->addr);
|
|
priv->eth_dev = dpaa_eth_add_device(fman_id, mac_dev);
|
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_of_get_parent:
|
kfree(priv->fixed_link);
|
_return:
|
return err;
|
}
|
|
static int mac_remove(struct platform_device *pdev)
|
{
|
struct mac_device *mac_dev = platform_get_drvdata(pdev);
|
|
platform_device_unregister(mac_dev->priv->eth_dev);
|
return 0;
|
}
|
|
static struct platform_driver mac_driver = {
|
.driver = {
|
.name = KBUILD_MODNAME,
|
.of_match_table = mac_match,
|
},
|
.probe = mac_probe,
|
.remove = mac_remove,
|
};
|
|
builtin_platform_driver(mac_driver);
|
