[U-Boot] [PATCH v3] net: phy: add TSE PCS support to dwmac-socfpga

Ooi, Joyce joyce.ooi at intel.com
Wed Dec 26 07:47:06 UTC 2018


Adding Marek.

> -----Original Message-----
> From: U-Boot [mailto:u-boot-bounces at lists.denx.de] On Behalf Of Ooi, Joyce
> Sent: Tuesday, November 27, 2018 5:40 PM
> To: Joe Hershberger <joe.hershberger at ni.com>
> Cc: Ong, Hean Loong <hean.loong.ong at intel.com>; Priyanka Jain
> <priyanka.jain at nxp.com>; See, Chin Liang <chin.liang.see at intel.com>; u-
> boot at lists.denx.de
> Subject: Re: [U-Boot] [PATCH v3] net: phy: add TSE PCS support to dwmac-
> socfpga
> 
> Hi Joe,
> 
> Any comments/feedback on this v3 patch?
> 
> Thanks.
> 
> Regards,
> Joyce Ooi
> 
> > -----Original Message-----
> > From: Ooi, Joyce
> > Sent: Friday, November 9, 2018 6:16 PM
> > To: Joe Hershberger <joe.hershberger at ni.com>
> > Cc: Grygorii Strashko <grygorii.strashko at ti.com>; Neil Armstrong
> > <narmstrong at baylibre.com>; Mario Six <mario.six at gdsys.cc>; Florian
> > Fainelli <f.fainelli at gmail.com>; Priyanka Jain
> > <priyanka.jain at nxp.com>; Ooi, Joyce <joyce.ooi at intel.com>; See, Chin
> > Liang <chin.liang.see at intel.com>; Ong, Hean Loong
> > <hean.loong.ong at intel.com>; u-boot at lists.denx.de
> > Subject: [PATCH v3] net: phy: add TSE PCS support to dwmac-socfpga
> >
> > This adds support for TSE PCS (Triple Speed Ethernet Physical Coding
> > Sublayer) that uses SGMII adapter when the phy-mode in device tree is
> > set to sgmii.
> >
> > Signed-off-by: Ooi, Joyce <joyce.ooi at intel.com>
> > ---
> >  arch/arm/mach-socfpga/include/mach/misc.h |    3 +
> >  arch/arm/mach-socfpga/misc_s10.c          |    6 +
> >  drivers/net/Makefile                      |    3 +-
> >  drivers/net/designware.c                  |    5 +
> >  drivers/net/designware.h                  |    1 +
> >  drivers/net/dwmac_socfpga.c               |  122 +++++++++++++++++++
> >  drivers/net/phy/altr_tse_pcs.c            |  184
> +++++++++++++++++++++++++++++
> >  drivers/net/phy/altr_tse_pcs.h            |   56 +++++++++
> >  8 files changed, 379 insertions(+), 1 deletions(-)  create mode
> > 100644 drivers/net/phy/altr_tse_pcs.c  create mode 100644
> > drivers/net/phy/altr_tse_pcs.h
> > ---
> > v2: add a __weak function to make it compatible for all socfpga
> > platforms
> > v3: remove __weak function and use board-specific implementation
> > instead
> >
> > diff --git a/arch/arm/mach-socfpga/include/mach/misc.h
> > b/arch/arm/mach- socfpga/include/mach/misc.h index 4fc9570..751705e
> > 100644
> > --- a/arch/arm/mach-socfpga/include/mach/misc.h
> > +++ b/arch/arm/mach-socfpga/include/mach/misc.h
> > @@ -30,6 +30,9 @@ void socfpga_init_security_policies(void);
> >  void socfpga_sdram_remap_zero(void);
> >  #endif
> >
> > +#ifdef CONFIG_TARGET_SOCFPGA_STRATIX10 int
> > +socfpga_test_fpga_ready(void); #endif
> >  void do_bridge_reset(int enable);
> >
> >  #endif /* _MISC_H_ */
> > diff --git a/arch/arm/mach-socfpga/misc_s10.c b/arch/arm/mach-
> > socfpga/misc_s10.c index e599362..3cd9c30 100644
> > --- a/arch/arm/mach-socfpga/misc_s10.c
> > +++ b/arch/arm/mach-socfpga/misc_s10.c
> > @@ -11,6 +11,7 @@
> >  #include <miiphy.h>
> >  #include <netdev.h>
> >  #include <asm/io.h>
> > +#include <asm/arch/mailbox_s10.h>
> >  #include <asm/arch/reset_manager.h>
> >  #include <asm/arch/system_manager.h>
> >  #include <asm/arch/misc.h>
> > @@ -91,6 +92,11 @@ static int socfpga_set_phymode(void)
> >
> >  	return 0;
> >  }
> > +
> > +int socfpga_test_fpga_ready(void)
> > +{
> > +	return mbox_get_fpga_config_status(MBOX_CONFIG_STATUS);
> > +}
> >  #else
> >  static int socfpga_set_phymode(void)
> >  {
> > diff --git a/drivers/net/Makefile b/drivers/net/Makefile index
> > 48a2878..c2333b5
> > 100644
> > --- a/drivers/net/Makefile
> > +++ b/drivers/net/Makefile
> > @@ -14,7 +14,7 @@ obj-$(CONFIG_CALXEDA_XGMAC) += calxedaxgmac.o
> >  obj-$(CONFIG_CS8900) += cs8900.o
> >  obj-$(CONFIG_TULIP) += dc2114x.o
> >  obj-$(CONFIG_ETH_DESIGNWARE) += designware.o
> > -obj-$(CONFIG_ETH_DESIGNWARE_SOCFPGA) += dwmac_socfpga.o
> > +obj-$(CONFIG_ETH_DESIGNWARE_SOCFPGA) += dwmac-socfpga.o
> >  obj-$(CONFIG_DRIVER_DM9000) += dm9000x.o
> >  obj-$(CONFIG_DNET) += dnet.o
> >  obj-$(CONFIG_E1000) += e1000.o
> > @@ -73,3 +73,4 @@ obj-$(CONFIG_PIC32_ETH) += pic32_mdio.o pic32_eth.o
> >  obj-$(CONFIG_DWC_ETH_QOS) += dwc_eth_qos.o
> >  obj-$(CONFIG_FSL_PFE) += pfe_eth/
> >  obj-$(CONFIG_SNI_AVE) += sni_ave.o
> > +dwmac-socfpga-objs := phy/altr_tse_pcs.o dwmac_socfpga.o
> > diff --git a/drivers/net/designware.c b/drivers/net/designware.c index
> > 19db0a8..666cf41 100644
> > --- a/drivers/net/designware.c
> > +++ b/drivers/net/designware.c
> > @@ -235,6 +235,8 @@ static int dw_adjust_link(struct dw_eth_dev *priv,
> > struct eth_mac_regs *mac_p,
> >  			  struct phy_device *phydev)
> >  {
> >  	u32 conf = readl(&mac_p->conf) | FRAMEBURSTENABLE |
> DISABLERXOWN;
> > +	struct udevice *dev = priv->phydev->dev;
> > +	struct dw_eth_pdata *dw_pdata = dev_get_platdata(dev);
> >
> >  	if (!phydev->link) {
> >  		printf("%s: No link.\n", phydev->dev->name); @@ -254,6
> > +256,9 @@ static int dw_adjust_link(struct dw_eth_dev *priv, struct
> > eth_mac_regs *mac_p,
> >
> >  	writel(conf, &mac_p->conf);
> >
> > +	if (dw_pdata->pcs_adjust_link)
> > +		dw_pdata->pcs_adjust_link(dev, phydev);
> > +
> >  	printf("Speed: %d, %s duplex%s\n", phydev->speed,
> >  	       (phydev->duplex) ? "full" : "half",
> >  	       (phydev->port == PORT_FIBRE) ? ", fiber mode" : ""); diff
> > --git a/drivers/net/designware.h b/drivers/net/designware.h index
> > dea12b7..3a5a93f
> > 100644
> > --- a/drivers/net/designware.h
> > +++ b/drivers/net/designware.h
> > @@ -255,6 +255,7 @@ extern const struct eth_ops designware_eth_ops;
> > struct dw_eth_pdata {
> >  	struct eth_pdata eth_pdata;
> >  	u32 reset_delays[3];
> > +	void (*pcs_adjust_link)(struct udevice *dev, struct phy_device
> > +*phydev);
> >  };
> >
> >  int designware_eth_init(struct dw_eth_dev *priv, u8 *enetaddr); diff
> > --git a/drivers/net/dwmac_socfpga.c b/drivers/net/dwmac_socfpga.c
> > index 08fc967..7d13f3c 100644
> > --- a/drivers/net/dwmac_socfpga.c
> > +++ b/drivers/net/dwmac_socfpga.c
> > @@ -9,12 +9,16 @@
> >  #include <asm/io.h>
> >  #include <dm.h>
> >  #include <clk.h>
> > +#include <fdt_support.h>
> >  #include <phy.h>
> >  #include <regmap.h>
> >  #include <reset.h>
> >  #include <syscon.h>
> >  #include "designware.h"
> > +#include "phy/altr_tse_pcs.h"
> >
> > +#include <asm/arch/misc.h>
> > +#include <asm/arch/reset_manager.h>
> >  #include <asm/arch/system_manager.h>
> >
> >  enum dwmac_type {
> > @@ -27,8 +31,123 @@ struct dwmac_socfpga_platdata {
> >  	struct dw_eth_pdata	dw_eth_pdata;
> >  	enum dwmac_type		type;
> >  	void			*phy_intf;
> > +	struct tse_pcs		pcs;
> >  };
> >
> > +static void socfpga_tse_pcs_adjust_link(struct udevice *dev,
> > +					struct phy_device *phydev)
> > +{
> > +	struct dwmac_socfpga_platdata *pdata = dev_get_platdata(dev);
> > +	phys_addr_t tse_pcs_base = pdata->pcs.tse_pcs_base;
> > +	phys_addr_t sgmii_adapter_base = pdata->pcs.sgmii_adapter_base;
> > +
> > +	if ((tse_pcs_base) && (sgmii_adapter_base))
> > +		writew(SGMII_ADAPTER_DISABLE,
> > +		       sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
> > +
> > +	if ((tse_pcs_base) && (sgmii_adapter_base))
> > +		tse_pcs_fix_mac_speed(&pdata->pcs, phydev, phydev->speed);
> > }
> > +
> > +static int socfpga_dw_tse_pcs_init(struct udevice *dev) {
> > +	struct dwmac_socfpga_platdata *pdata = dev_get_platdata(dev);
> > +	struct dw_eth_pdata *dw_pdata = &pdata->dw_eth_pdata;
> > +	struct eth_pdata *eth_pdata = &pdata->dw_eth_pdata.eth_pdata;
> > +	phys_addr_t tse_pcs_base = pdata->pcs.tse_pcs_base;
> > +	phys_addr_t sgmii_adapter_base = pdata->pcs.sgmii_adapter_base;
> > +	const fdt32_t *reg;
> > +	int ret = 0;
> > +	int parent, index, na, ns, offset, len;
> > +
> > +	offset = fdtdec_lookup_phandle(gd->fdt_blob, dev_of_offset(dev),
> > +				       "altr,gmii-to-sgmii-converter");
> > +	if (offset > 0) {
> > +#ifdef CONFIG_TARGET_SOCFPGA_STRATIX10
> > +		/* check FPGA status */
> > +		ret = socfpga_test_fpga_ready();
> > +		if (ret) {
> > +			debug("%s: FPGA not ready (%d)\n", __func__, ret);
> > +			return -EPERM;
> > +		}
> > +#endif
> > +		/* enable HPS bridge */
> > +		do_bridge_reset(1);
> > +
> > +		parent = fdt_parent_offset(gd->fdt_blob, offset);
> > +		if (parent < 0) {
> > +			debug("s10-hps-bridge DT not found\n");
> > +			return -ENODEV;
> > +		}
> > +
> > +		na = fdt_address_cells(gd->fdt_blob, parent);
> > +		if (na < 1) {
> > +			debug("bad #address-cells\n");
> > +			return -EINVAL;
> > +		}
> > +
> > +		ns = fdt_size_cells(gd->fdt_blob, parent);
> > +		if (ns < 1) {
> > +			debug("bad #size-cells\n");
> > +			return -EINVAL;
> > +		}
> > +
> > +		index = fdt_stringlist_search(gd->fdt_blob, offset, "reg-names",
> > +					      "eth_tse_control_port");
> > +		if (index < 0) {
> > +			debug("fail to find eth_tse_control_port: %s\n",
> > +			      fdt_strerror(index));
> > +			return -ENOENT;
> > +		}
> > +
> > +		reg = fdt_getprop(gd->fdt_blob, offset, "reg", &len);
> > +		if (!reg || (len <= (index * sizeof(fdt32_t) * (na + ns))))
> > +			return -EINVAL;
> > +
> > +		reg += index * (na + ns);
> > +		tse_pcs_base = fdt_translate_address((void *)gd->fdt_blob,
> > +						     offset, reg);
> > +		if (tse_pcs_base == FDT_ADDR_T_NONE) {
> > +			debug("tse pcs address not found\n");
> > +			return -EINVAL;
> > +		}
> > +
> > +		index = fdt_stringlist_search(gd->fdt_blob, offset, "reg-names",
> > +
> > "gmii_to_sgmii_adapter_avalon_slave");
> > +		if (index < 0) {
> > +			debug("fail to find
> > gmii_to_sgmii_adapter_avalon_slave: %s\n",
> > +			      fdt_strerror(index));
> > +			return -EINVAL;
> > +		}
> > +
> > +		reg = fdt_getprop(gd->fdt_blob, offset, "reg", &len);
> > +		if (!reg || (len <= (index * sizeof(fdt32_t) * (na + ns))))
> > +			return -EINVAL;
> > +
> > +		reg += index * (na + ns);
> > +		sgmii_adapter_base = fdt_translate_address((void *)gd-
> > >fdt_blob,
> > +							   offset, reg);
> > +		if (sgmii_adapter_base == FDT_ADDR_T_NONE) {
> > +			debug("gmii-to-sgmii adapter address not found\n");
> > +			return -EINVAL;
> > +		}
> > +
> > +		if (eth_pdata->phy_interface ==
> > PHY_INTERFACE_MODE_SGMII) {
> > +			if (tse_pcs_init(tse_pcs_base, &pdata->pcs) != 0) {
> > +				debug("Unable to intiialize TSE PCS\n");
> > +				return -EINVAL;
> > +			}
> > +		}
> > +		/* Clear sgmii_adapter_base first */
> > +		writel(0, sgmii_adapter_base);
> > +
> > +		pdata->pcs.tse_pcs_base = tse_pcs_base;
> > +		pdata->pcs.sgmii_adapter_base = sgmii_adapter_base;
> > +		dw_pdata->pcs_adjust_link = socfpga_tse_pcs_adjust_link;
> > +	}
> > +	return ret;
> > +}
> > +
> >  static int dwmac_socfpga_ofdata_to_platdata(struct udevice *dev)  {
> >  	struct dwmac_socfpga_platdata *pdata = dev_get_platdata(dev); @@ -
> > 94,6 +213,7 @@ static int dwmac_socfpga_probe(struct udevice *dev)
> >  		switch (edata->phy_interface) {
> >  		case PHY_INTERFACE_MODE_MII:
> >  		case PHY_INTERFACE_MODE_GMII:
> > +		case PHY_INTERFACE_MODE_SGMII:
> >  			modereg =
> > SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII;
> >  			break;
> >  		case PHY_INTERFACE_MODE_RMII:
> > @@ -122,6 +242,8 @@ static int dwmac_socfpga_probe(struct udevice *dev)
> >  		reset_release_bulk(&reset_bulk);
> >  	}
> >
> > +	socfpga_dw_tse_pcs_init(dev);
> > +
> >  	return designware_eth_probe(dev);
> >  }
> >
> > diff --git a/drivers/net/phy/altr_tse_pcs.c
> > b/drivers/net/phy/altr_tse_pcs.c new file mode 100644 index
> > 0000000..4423538
> > --- /dev/null
> > +++ b/drivers/net/phy/altr_tse_pcs.c
> > @@ -0,0 +1,184 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +/*
> > + * Copyright (C) 2018 Intel Corporation <www.intel.com>  */
> > +
> > +#include <asm/io.h>
> > +#include <common.h>
> > +#include <command.h>
> > +#include <malloc.h>
> > +#include <net.h>
> > +#include <linux/compat.h>
> > +#include <phy.h>
> > +#include <timer.h>
> > +#include <wait_bit.h>
> > +#include <linux/ethtool.h>
> > +
> > +#include <asm/omap_common.h>
> > +#include <asm/omap_musb.h>
> > +
> > +#include "altr_tse_pcs.h"
> > +
> > +static int tse_pcs_reset(phys_addr_t base, struct tse_pcs *pcs) {
> > +	int ret;
> > +	u16 val;
> > +	phys_addr_t reg = base + TSE_PCS_CONTROL_REG;
> > +
> > +	val = readw(reg);
> > +	val |= TSE_PCS_SW_RST_MASK;
> > +
> > +	writew(val, reg);
> > +
> > +	ret = wait_for_bit_le16(&reg, TSE_PCS_SW_RST_MASK, false,
> > +				TSE_PCS_SW_RESET_TIMEOUT, false);
> > +
> > +	if (ret) {
> > +		debug("%s: PCS could not get out of sw reset\n", __func__);
> > +		return -ETIMEDOUT;
> > +	}
> > +
> > +	return 0;
> > +}
> > +
> > +int tse_pcs_init(phys_addr_t base, struct tse_pcs *pcs) {
> > +	int ret = 0;
> > +
> > +	writew(TSE_PCS_USE_SGMII_ENA, base + TSE_PCS_IF_MODE_REG);
> > +	writew(TSE_PCS_SGMII_LINK_TIMER_0, base +
> > TSE_PCS_LINK_TIMER_0_REG);
> > +	writew(TSE_PCS_SGMII_LINK_TIMER_1, base +
> > TSE_PCS_LINK_TIMER_1_REG);
> > +
> > +	ret = tse_pcs_reset(base, pcs);
> > +	if (ret == 0)
> > +		writew(SGMII_ADAPTER_ENABLE,
> > +		       pcs->sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
> > +
> > +	return ret;
> > +}
> > +
> > +static void pcs_link_timer_callback(struct tse_pcs *pcs) {
> > +	u16 val = 0;
> > +	phys_addr_t tse_pcs_base = pcs->tse_pcs_base;
> > +	phys_addr_t sgmii_adapter_base = pcs->sgmii_adapter_base;
> > +
> > +	val = readw(tse_pcs_base + TSE_PCS_STATUS_REG);
> > +	val &= TSE_PCS_STATUS_LINK_MASK;
> > +
> > +	if (val != 0) {
> > +		printf("Adapter: Link is established\n");
> > +		writew(SGMII_ADAPTER_ENABLE,
> > +		       sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
> > +	} else {
> > +		printf("Adapter: Link fail to establish\n");
> > +	}
> > +}
> > +
> > +static void auto_nego_timer_callback(struct tse_pcs *pcs) {
> > +	u16 val = 0;
> > +	u16 speed = 0;
> > +	u16 duplex = 0;
> > +	phys_addr_t tse_pcs_base = pcs->tse_pcs_base;
> > +	phys_addr_t sgmii_adapter_base = pcs->sgmii_adapter_base;
> > +
> > +	val = readw(tse_pcs_base + TSE_PCS_STATUS_REG);
> > +	val &= TSE_PCS_STATUS_AN_COMPLETED_MASK;
> > +
> > +	if (val != 0) {
> > +		printf("Adapter: Auto Negotiation is completed\n");
> > +		val = readw(tse_pcs_base + TSE_PCS_PARTNER_ABILITY_REG);
> > +		speed = val & TSE_PCS_PARTNER_SPEED_MASK;
> > +		duplex = val & TSE_PCS_PARTNER_DUPLEX_MASK;
> > +
> > +		if (duplex == TSE_PCS_PARTNER_DUPLEX_FULL) {
> > +			if (speed == TSE_PCS_PARTNER_SPEED_10)
> > +				printf("Adapter: Link Partner is Up - 10/Full\n");
> > +			else if (speed == TSE_PCS_PARTNER_SPEED_100)
> > +				printf("Adapter: Link Partner is Up -
> > 100/Full\n");
> > +			else if (speed == TSE_PCS_PARTNER_SPEED_1000)
> > +				printf("Adapter: Link Partner is Up -
> > 1000/Full\n");
> > +		} else if (duplex == TSE_PCS_PARTNER_DUPLEX_HALF)
> > +			printf("Adapter does not support Half Duplex\n");
> > +		else
> > +			printf("Adapter: Invalid Partner Speed and Duplex\n");
> > +
> > +		if (duplex == TSE_PCS_PARTNER_DUPLEX_FULL &&
> > +		    (speed == TSE_PCS_PARTNER_SPEED_10 ||
> > +		     speed == TSE_PCS_PARTNER_SPEED_100 ||
> > +		     speed == TSE_PCS_PARTNER_SPEED_1000))
> > +			writew(SGMII_ADAPTER_ENABLE,
> > +			       sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
> > +	} else {
> > +		printf("Auto-negotioation failed\n");
> > +	}
> > +}
> > +
> > +void tse_pcs_fix_mac_speed(struct tse_pcs *pcs, struct phy_device
> *phy_dev,
> > +			   unsigned int speed)
> > +{
> > +	phys_addr_t tse_pcs_base = pcs->tse_pcs_base;
> > +	phys_addr_t sgmii_adapter_base = pcs->sgmii_adapter_base;
> > +	u32 val, start;
> > +
> > +	writew(SGMII_ADAPTER_ENABLE,
> > +	       sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
> > +	pcs->autoneg = phy_dev->autoneg;
> > +
> > +	if (pcs->autoneg == AUTONEG_ENABLE) {
> > +		val = readw(tse_pcs_base + TSE_PCS_CONTROL_REG);
> > +		val |= TSE_PCS_CONTROL_AN_EN_MASK;
> > +		writew(val, tse_pcs_base + TSE_PCS_CONTROL_REG);
> > +
> > +		val = readw(tse_pcs_base + TSE_PCS_IF_MODE_REG);
> > +		val |= TSE_PCS_USE_SGMII_AN_MASK;
> > +		writew(val, tse_pcs_base + TSE_PCS_IF_MODE_REG);
> > +
> > +		val = readw(tse_pcs_base + TSE_PCS_CONTROL_REG);
> > +		val |= TSE_PCS_CONTROL_RESTART_AN_MASK;
> > +
> > +		tse_pcs_reset(tse_pcs_base, pcs);
> > +
> > +	} else if (pcs->autoneg == AUTONEG_DISABLE) {
> > +		val = readw(tse_pcs_base + TSE_PCS_CONTROL_REG);
> > +		val &= ~TSE_PCS_CONTROL_AN_EN_MASK;
> > +		writew(val, tse_pcs_base + TSE_PCS_CONTROL_REG);
> > +
> > +		val = readw(tse_pcs_base + TSE_PCS_IF_MODE_REG);
> > +		val &= ~TSE_PCS_USE_SGMII_AN_MASK;
> > +		writew(val, tse_pcs_base + TSE_PCS_IF_MODE_REG);
> > +
> > +		val = readw(tse_pcs_base + TSE_PCS_IF_MODE_REG);
> > +		val &= ~TSE_PCS_SGMII_SPEED_MASK;
> > +
> > +		switch (speed) {
> > +		case 1000:
> > +			val |= TSE_PCS_SGMII_SPEED_1000;
> > +			break;
> > +		case 100:
> > +			val |= TSE_PCS_SGMII_SPEED_100;
> > +			break;
> > +		case 10:
> > +			val |= TSE_PCS_SGMII_SPEED_10;
> > +			break;
> > +		default:
> > +			return;
> > +		}
> > +		writew(val, tse_pcs_base + TSE_PCS_IF_MODE_REG);
> > +
> > +		tse_pcs_reset(tse_pcs_base, pcs);
> > +	}
> > +
> > +	start = get_timer(0);
> > +	while (1) {
> > +		if (get_timer(start) >= AUTONEGO_LINK_TIMER) {
> > +			if (pcs->autoneg == AUTONEG_ENABLE)
> > +				auto_nego_timer_callback(pcs);
> > +			else if (pcs->autoneg == AUTONEG_DISABLE)
> > +				pcs_link_timer_callback(pcs);
> > +			return;
> > +		}
> > +		udelay(100);
> > +	}
> > +}
> > diff --git a/drivers/net/phy/altr_tse_pcs.h
> > b/drivers/net/phy/altr_tse_pcs.h new file mode 100644 index
> > 0000000..0e8d4f4
> > --- /dev/null
> > +++ b/drivers/net/phy/altr_tse_pcs.h
> > @@ -0,0 +1,56 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +/*
> > + * Copyright (C) 2018 Intel Corporation <www.intel.com>  */
> > +
> > +#ifndef __TSE_PCS_H__
> > +#define __TSE_PCS_H__
> > +
> > +#define TSE_PCS_CONTROL_AN_EN_MASK			BIT(12)
> > +#define TSE_PCS_CONTROL_REG				0x00
> > +#define TSE_PCS_CONTROL_RESTART_AN_MASK			BIT(9)
> > +#define TSE_PCS_IF_MODE_REG				0x28
> > +#define TSE_PCS_LINK_TIMER_0_REG			0x24
> > +#define TSE_PCS_LINK_TIMER_1_REG			0x26
> > +#define TSE_PCS_SIZE					0x40
> > +#define TSE_PCS_STATUS_AN_COMPLETED_MASK		BIT(5)
> > +#define TSE_PCS_STATUS_LINK_MASK			BIT(2)
> > +#define TSE_PCS_STATUS_REG				0x02
> > +#define TSE_PCS_SGMII_SPEED_1000			BIT(3)
> > +#define TSE_PCS_SGMII_SPEED_100				BIT(2)
> > +#define TSE_PCS_SGMII_SPEED_10				0x0
> > +#define TSE_PCS_SGMII_SPEED_MASK			GENMASK(3,
> 2)
> > +#define TSE_PCS_SW_RST_MASK				BIT(15)
> > +#define TSE_PCS_PARTNER_ABILITY_REG			0x0A
> > +#define TSE_PCS_PARTNER_DUPLEX_FULL			BIT(12)
> > +#define TSE_PCS_PARTNER_DUPLEX_HALF			0x0000
> > +#define TSE_PCS_PARTNER_DUPLEX_MASK			BIT(12)
> > +#define TSE_PCS_PARTNER_SPEED_MASK			GENMASK(11,
> > 10)
> > +#define TSE_PCS_PARTNER_SPEED_1000			BIT(11)
> > +#define TSE_PCS_PARTNER_SPEED_100			BIT(10)
> > +#define TSE_PCS_PARTNER_SPEED_10			0x0000
> > +#define TSE_PCS_SGMII_LINK_TIMER_0			0x0D40
> > +#define TSE_PCS_SGMII_LINK_TIMER_1			0x0003
> > +#define TSE_PCS_SW_RESET_TIMEOUT			100
> > +#define TSE_PCS_USE_SGMII_AN_MASK			BIT(1)
> > +#define TSE_PCS_USE_SGMII_ENA				BIT(0)
> > +
> > +#define SGMII_ADAPTER_CTRL_REG				0x00
> > +#define SGMII_ADAPTER_DISABLE				0x0001
> > +#define SGMII_ADAPTER_ENABLE				0x0000
> > +
> > +#define AUTONEGO_LINK_TIMER				20
> > +
> > +struct tse_pcs {
> > +	struct device *dev;
> > +	phys_addr_t tse_pcs_base;
> > +	phys_addr_t sgmii_adapter_base;
> > +	struct timer_list aneg_link_timer;
> > +	int autoneg;
> > +};
> > +
> > +int tse_pcs_init(phys_addr_t base, struct tse_pcs *pcs); void
> > +tse_pcs_fix_mac_speed(struct tse_pcs *pcs, struct phy_device *phy_dev,
> > +			   unsigned int speed);
> > +
> > +#endif /* __TSE_PCS_H__ */
> > --
> > 1.7.1
> 
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