mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 00:21:06 +00:00
146 lines
3 KiB
C
146 lines
3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Xilinx PCS/PMA Core phy driver
|
|
*
|
|
* Copyright (C) 2015 - 2016 Xilinx, Inc.
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <log.h>
|
|
#include <phy.h>
|
|
#include <dm.h>
|
|
|
|
#define MII_PHY_STATUS_SPD_MASK 0x0C00
|
|
#define MII_PHY_STATUS_FULLDUPLEX 0x1000
|
|
#define MII_PHY_STATUS_1000 0x0800
|
|
#define MII_PHY_STATUS_100 0x0400
|
|
#define XPCSPMA_PHY_CTRL_ISOLATE_DISABLE 0xFBFF
|
|
|
|
/* Mask used for ID comparisons */
|
|
#define XILINX_PHY_ID_MASK 0xfffffff0
|
|
|
|
/* Known PHY IDs */
|
|
#define XILINX_PHY_ID 0x01740c00
|
|
|
|
/* struct phy_device dev_flags definitions */
|
|
#define XAE_PHY_TYPE_MII 0
|
|
#define XAE_PHY_TYPE_GMII 1
|
|
#define XAE_PHY_TYPE_RGMII_1_3 2
|
|
#define XAE_PHY_TYPE_RGMII_2_0 3
|
|
#define XAE_PHY_TYPE_SGMII 4
|
|
#define XAE_PHY_TYPE_1000BASE_X 5
|
|
|
|
static int xilinxphy_startup(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
int status = 0;
|
|
|
|
debug("%s\n", __func__);
|
|
/* Update the link, but return if there
|
|
* was an error
|
|
*/
|
|
err = genphy_update_link(phydev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (AUTONEG_ENABLE == phydev->autoneg) {
|
|
status = phy_read(phydev, MDIO_DEVAD_NONE, MII_LPA);
|
|
status = status & MII_PHY_STATUS_SPD_MASK;
|
|
|
|
if (status & MII_PHY_STATUS_FULLDUPLEX)
|
|
phydev->duplex = DUPLEX_FULL;
|
|
else
|
|
phydev->duplex = DUPLEX_HALF;
|
|
|
|
switch (status) {
|
|
case MII_PHY_STATUS_1000:
|
|
phydev->speed = SPEED_1000;
|
|
break;
|
|
|
|
case MII_PHY_STATUS_100:
|
|
phydev->speed = SPEED_100;
|
|
break;
|
|
|
|
default:
|
|
phydev->speed = SPEED_10;
|
|
break;
|
|
}
|
|
} else {
|
|
int bmcr = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
|
|
|
|
if (bmcr < 0)
|
|
return bmcr;
|
|
|
|
if (bmcr & BMCR_FULLDPLX)
|
|
phydev->duplex = DUPLEX_FULL;
|
|
else
|
|
phydev->duplex = DUPLEX_HALF;
|
|
|
|
if (bmcr & BMCR_SPEED1000)
|
|
phydev->speed = SPEED_1000;
|
|
else if (bmcr & BMCR_SPEED100)
|
|
phydev->speed = SPEED_100;
|
|
else
|
|
phydev->speed = SPEED_10;
|
|
}
|
|
|
|
/*
|
|
* For 1000BASE-X Phy Mode the speed/duplex will always be
|
|
* 1000Mbps/fullduplex
|
|
*/
|
|
if (phydev->flags == XAE_PHY_TYPE_1000BASE_X) {
|
|
phydev->duplex = DUPLEX_FULL;
|
|
phydev->speed = SPEED_1000;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int xilinxphy_of_init(struct phy_device *phydev)
|
|
{
|
|
u32 phytype;
|
|
ofnode node;
|
|
|
|
debug("%s\n", __func__);
|
|
node = phy_get_ofnode(phydev);
|
|
if (!ofnode_valid(node))
|
|
return -EINVAL;
|
|
|
|
phytype = ofnode_read_u32_default(node, "xlnx,phy-type", -1);
|
|
if (phytype == XAE_PHY_TYPE_1000BASE_X)
|
|
phydev->flags |= XAE_PHY_TYPE_1000BASE_X;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int xilinxphy_config(struct phy_device *phydev)
|
|
{
|
|
int temp;
|
|
|
|
debug("%s\n", __func__);
|
|
xilinxphy_of_init(phydev);
|
|
temp = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
|
|
temp &= XPCSPMA_PHY_CTRL_ISOLATE_DISABLE;
|
|
phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, temp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct phy_driver xilinxphy_driver = {
|
|
.uid = XILINX_PHY_ID,
|
|
.mask = XILINX_PHY_ID_MASK,
|
|
.name = "Xilinx PCS/PMA PHY",
|
|
.features = PHY_GBIT_FEATURES,
|
|
.config = &xilinxphy_config,
|
|
.startup = &xilinxphy_startup,
|
|
.shutdown = &genphy_shutdown,
|
|
};
|
|
|
|
int phy_xilinx_init(void)
|
|
{
|
|
debug("%s\n", __func__);
|
|
phy_register(&xilinxphy_driver);
|
|
|
|
return 0;
|
|
}
|