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// SPDX-License-Identifier: GPL-2.0
/* Copyright Sunplus Technology Co., Ltd.
* All rights reserved.
*/
#include <linux/netdevice.h>
#include <linux/bitfield.h>
#include <linux/of_mdio.h>
#include "spl2sw_register.h"
#include "spl2sw_define.h"
#include "spl2sw_phy.h"
static void spl2sw_mii_link_change(struct net_device *ndev)
{
struct spl2sw_mac *mac = netdev_priv(ndev);
struct phy_device *phydev = ndev->phydev;
struct spl2sw_common *comm = mac->comm;
u32 reg;
reg = readl(comm->l2sw_reg_base + L2SW_MAC_FORCE_MODE);
if (phydev->link) {
reg |= FIELD_PREP(MAC_FORCE_RMII_LINK, mac->lan_port);
if (phydev->speed == 100) {
reg |= FIELD_PREP(MAC_FORCE_RMII_SPD, mac->lan_port);
} else {
reg &= FIELD_PREP(MAC_FORCE_RMII_SPD, ~mac->lan_port) |
~MAC_FORCE_RMII_SPD;
}
if (phydev->duplex) {
reg |= FIELD_PREP(MAC_FORCE_RMII_DPX, mac->lan_port);
} else {
reg &= FIELD_PREP(MAC_FORCE_RMII_DPX, ~mac->lan_port) |
~MAC_FORCE_RMII_DPX;
}
if (phydev->pause) {
reg |= FIELD_PREP(MAC_FORCE_RMII_FC, mac->lan_port);
} else {
reg &= FIELD_PREP(MAC_FORCE_RMII_FC, ~mac->lan_port) |
~MAC_FORCE_RMII_FC;
}
} else {
reg &= FIELD_PREP(MAC_FORCE_RMII_LINK, ~mac->lan_port) |
~MAC_FORCE_RMII_LINK;
}
writel(reg, comm->l2sw_reg_base + L2SW_MAC_FORCE_MODE);
phy_print_status(phydev);
}
int spl2sw_phy_connect(struct spl2sw_common *comm)
{
struct phy_device *phydev;
struct net_device *ndev;
struct spl2sw_mac *mac;
int i;
for (i = 0; i < MAX_NETDEV_NUM; i++)
if (comm->ndev[i]) {
ndev = comm->ndev[i];
mac = netdev_priv(ndev);
phydev = of_phy_connect(ndev, mac->phy_node, spl2sw_mii_link_change,
0, mac->phy_mode);
if (!phydev)
return -ENODEV;
phy_support_asym_pause(phydev);
phy_attached_info(phydev);
}
return 0;
}
void spl2sw_phy_remove(struct spl2sw_common *comm)
{
struct net_device *ndev;
int i;
for (i = 0; i < MAX_NETDEV_NUM; i++)
if (comm->ndev[i]) {
ndev = comm->ndev[i];
if (ndev)
phy_disconnect(ndev->phydev);
}
}
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