u-boot/drivers/net/ldpaa_eth/ldpaa_wriop.c
Pankaj Bansal 1a048cd656 driver: net: fsl-mc: Add support of multiple phys for dpmac
Till now we have had cases where we had one phy device per dpmac.
Now, with the upcoming products (LX2160AQDS), we have cases, where there
are sometimes two phy devices for one dpmac. One phy for TX lanes and
one phy for RX lanes. to handle such cases, add the support for multiple
phys in ethernet driver. The ethernet link is up if all the phy devices
connected to one dpmac report link up. also the link capabilities are
limited by the weakest phy device.

i.e. say if there are two phys for one dpmac. one operates at 10G without
autoneg and other operate at 1G with autoneg. Then the ethernet interface
will operate at 1G without autoneg.

Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-10-10 12:45:28 -05:00

192 lines
3.6 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Freescale Semiconductor
*/
#include <common.h>
#include <asm/io.h>
#include <asm/types.h>
#include <malloc.h>
#include <net.h>
#include <linux/compat.h>
#include <asm/arch/fsl_serdes.h>
#include <fsl-mc/ldpaa_wriop.h>
struct wriop_dpmac_info dpmac_info[NUM_WRIOP_PORTS];
__weak phy_interface_t wriop_dpmac_enet_if(int dpmac_id, int lane_prtc)
{
return PHY_INTERFACE_MODE_NONE;
}
void wriop_init_dpmac(int sd, int dpmac_id, int lane_prtcl)
{
phy_interface_t enet_if;
int phy_num;
dpmac_info[dpmac_id].enabled = 0;
dpmac_info[dpmac_id].id = 0;
dpmac_info[dpmac_id].enet_if = PHY_INTERFACE_MODE_NONE;
enet_if = wriop_dpmac_enet_if(dpmac_id, lane_prtcl);
if (enet_if != PHY_INTERFACE_MODE_NONE) {
dpmac_info[dpmac_id].enabled = 1;
dpmac_info[dpmac_id].id = dpmac_id;
dpmac_info[dpmac_id].enet_if = enet_if;
}
for (phy_num = 0; phy_num < WRIOP_MAX_PHY_NUM; phy_num++) {
dpmac_info[dpmac_id].phydev[phy_num] = NULL;
dpmac_info[dpmac_id].phy_addr[phy_num] = -1;
}
}
void wriop_init_dpmac_enet_if(int dpmac_id, phy_interface_t enet_if)
{
int phy_num;
dpmac_info[dpmac_id].enabled = 1;
dpmac_info[dpmac_id].id = dpmac_id;
dpmac_info[dpmac_id].enet_if = enet_if;
for (phy_num = 0; phy_num < WRIOP_MAX_PHY_NUM; phy_num++) {
dpmac_info[dpmac_id].phydev[phy_num] = NULL;
dpmac_info[dpmac_id].phy_addr[phy_num] = -1;
}
}
/*TODO what it do */
static int wriop_dpmac_to_index(int dpmac_id)
{
int i;
for (i = WRIOP1_DPMAC1; i < NUM_WRIOP_PORTS; i++) {
if (dpmac_info[i].id == dpmac_id)
return i;
}
return -1;
}
int wriop_disable_dpmac(int dpmac_id)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return -ENODEV;
dpmac_info[i].enabled = 0;
wriop_dpmac_disable(dpmac_id);
return 0;
}
int wriop_enable_dpmac(int dpmac_id)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return -ENODEV;
dpmac_info[i].enabled = 1;
wriop_dpmac_enable(dpmac_id);
return 0;
}
int wriop_is_enabled_dpmac(int dpmac_id)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return -ENODEV;
return dpmac_info[i].enabled;
}
int wriop_set_mdio(int dpmac_id, struct mii_dev *bus)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return -ENODEV;
dpmac_info[i].bus = bus;
return 0;
}
struct mii_dev *wriop_get_mdio(int dpmac_id)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return NULL;
return dpmac_info[i].bus;
}
int wriop_set_phy_address(int dpmac_id, int phy_num, int address)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return -ENODEV;
if (phy_num < 0 || phy_num >= WRIOP_MAX_PHY_NUM)
return -EINVAL;
dpmac_info[i].phy_addr[phy_num] = address;
return 0;
}
int wriop_get_phy_address(int dpmac_id, int phy_num)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return -ENODEV;
if (phy_num < 0 || phy_num >= WRIOP_MAX_PHY_NUM)
return -EINVAL;
return dpmac_info[i].phy_addr[phy_num];
}
int wriop_set_phy_dev(int dpmac_id, int phy_num, struct phy_device *phydev)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return -ENODEV;
if (phy_num < 0 || phy_num >= WRIOP_MAX_PHY_NUM)
return -EINVAL;
dpmac_info[i].phydev[phy_num] = phydev;
return 0;
}
struct phy_device *wriop_get_phy_dev(int dpmac_id, int phy_num)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return NULL;
if (phy_num < 0 || phy_num >= WRIOP_MAX_PHY_NUM)
return NULL;
return dpmac_info[i].phydev[phy_num];
}
phy_interface_t wriop_get_enet_if(int dpmac_id)
{
int i = wriop_dpmac_to_index(dpmac_id);
if (i == -1)
return PHY_INTERFACE_MODE_NONE;
if (dpmac_info[i].enabled)
return dpmac_info[i].enet_if;
return PHY_INTERFACE_MODE_NONE;
}