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Commit b5bacf86 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'xgene-v2-mdio-and-ethtool' 



Iyappan Subramanian says:

====================
drivers: net: xgene-v2: Add MDIO and ethtool support

This patch set,

- adds phy management and ethtool support
- fixes ethernet reset
- addresses review comments from previous patch set

v2: Address review comments from v1
	- removed mdio_lock, since there is a top level lock in mdio_bus.c

v1:
	- Initial version
====================

Signed-off-by: default avatarIyappan Subramanian <isubramanian@apm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 9bdf64d5 1ffa8a7a

drivers/net/ethernet/apm/xgene-v2/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -2,5 +2,5 @@ 
# Makefile for APM X-Gene Ethernet v2 driver

#



xgene-enet-v2-objs := main.o mac.o enet.o ring.o

xgene-enet-v2-objs := main.o mac.o enet.o ring.o mdio.o ethtool.o

obj-$(CONFIG_NET_XGENE_V2) += xgene-enet-v2.o

drivers/net/ethernet/apm/xgene-v2/enet.c

+18 −6
Original line number Diff line number Diff line
@@ -38,10 +38,24 @@ u32 xge_rd_csr(struct xge_pdata *pdata, u32 offset) 
int xge_port_reset(struct net_device *ndev)

{

	struct xge_pdata *pdata = netdev_priv(ndev);

	struct device *dev = &pdata->pdev->dev;

	u32 data, wait = 10;



	xge_wr_csr(pdata, ENET_SRST, 0x3);

	xge_wr_csr(pdata, ENET_SRST, 0x2);

	xge_wr_csr(pdata, ENET_SRST, 0x0);

	xge_wr_csr(pdata, ENET_CLKEN, 0x3);

	xge_wr_csr(pdata, ENET_SRST, 0xf);

	xge_wr_csr(pdata, ENET_SRST, 0);

	xge_wr_csr(pdata, CFG_MEM_RAM_SHUTDOWN, 1);

	xge_wr_csr(pdata, CFG_MEM_RAM_SHUTDOWN, 0);



	do {

		usleep_range(100, 110);

		data = xge_rd_csr(pdata, BLOCK_MEM_RDY);

	} while (data != MEM_RDY && wait--);



	if (data != MEM_RDY) {

		dev_err(dev, "ECC init failed: %x\n", data);

		return -ETIMEDOUT;

	}



	xge_wr_csr(pdata, ENET_SHIM, DEVM_ARAUX_COH | DEVM_AWAUX_COH);
@@ -59,13 +73,11 @@ static void xge_traffic_resume(struct net_device *ndev) 
	xge_wr_csr(pdata, RX_DV_GATE_REG, 1);

}



int xge_port_init(struct net_device *ndev)

void xge_port_init(struct net_device *ndev)

{

	struct xge_pdata *pdata = netdev_priv(ndev);



	pdata->phy_speed = SPEED_1000;

	xge_mac_init(pdata);

	xge_traffic_resume(ndev);



	return 0;

}

drivers/net/ethernet/apm/xgene-v2/enet.h

+2 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#define CFG_MEM_RAM_SHUTDOWN	0xd070

#define BLOCK_MEM_RDY		0xd074



#define MEM_RDY			0xffffffff

#define DEVM_ARAUX_COH		BIT(19)

#define DEVM_AWAUX_COH		BIT(3)
@@ -39,5 +40,6 @@ 
void xge_wr_csr(struct xge_pdata *pdata, u32 offset, u32 val);

u32 xge_rd_csr(struct xge_pdata *pdata, u32 offset);

int xge_port_reset(struct net_device *ndev);

void xge_port_init(struct net_device *ndev);



#endif  /* __XGENE_ENET_V2_ENET__H__ */

drivers/net/ethernet/apm/xgene-v2/ethtool.c

0 → 100644
+121 −0
Original line number Diff line number Diff line 
/*

 * Applied Micro X-Gene SoC Ethernet v2 Driver

 *

 * Copyright (c) 2017, Applied Micro Circuits Corporation

 * Author(s): Iyappan Subramanian <isubramanian@apm.com>

 *	      Keyur Chudgar <kchudgar@apm.com>

 *

 * This program is free software; you can redistribute  it and/or modify it

 * under  the terms of  the GNU General  Public License as published by the

 * Free Software Foundation;  either version 2 of the  License, or (at your

 * option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */



#include "main.h"



struct xge_gstrings_stats {

	char name[ETH_GSTRING_LEN];

	int offset;

};



#define XGE_STAT(m)		{ #m, offsetof(struct xge_pdata, stats.m) }



static const struct xge_gstrings_stats gstrings_stats[] = {

	XGE_STAT(rx_packets),

	XGE_STAT(tx_packets),

	XGE_STAT(rx_bytes),

	XGE_STAT(tx_bytes),

	XGE_STAT(rx_errors)

};



#define XGE_STATS_LEN		ARRAY_SIZE(gstrings_stats)



static void xge_get_drvinfo(struct net_device *ndev,

			    struct ethtool_drvinfo *info)

{

	struct xge_pdata *pdata = netdev_priv(ndev);

	struct platform_device *pdev = pdata->pdev;



	strcpy(info->driver, "xgene-enet-v2");

	strcpy(info->version, XGENE_ENET_V2_VERSION);

	snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");

	sprintf(info->bus_info, "%s", pdev->name);

}



static void xge_get_strings(struct net_device *ndev, u32 stringset, u8 *data)

{

	u8 *p = data;

	int i;



	if (stringset != ETH_SS_STATS)

		return;



	for (i = 0; i < XGE_STATS_LEN; i++) {

		memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);

		p += ETH_GSTRING_LEN;

	}

}



static int xge_get_sset_count(struct net_device *ndev, int sset)

{

	if (sset != ETH_SS_STATS)

		return -EINVAL;



	return XGE_STATS_LEN;

}



static void xge_get_ethtool_stats(struct net_device *ndev,

				  struct ethtool_stats *dummy,

				  u64 *data)

{

	void *pdata = netdev_priv(ndev);

	int i;



	for (i = 0; i < XGE_STATS_LEN; i++)

		*data++ = *(u64 *)(pdata + gstrings_stats[i].offset);

}



static int xge_get_link_ksettings(struct net_device *ndev,

				  struct ethtool_link_ksettings *cmd)

{

	struct phy_device *phydev = ndev->phydev;



	if (!phydev)

		return -ENODEV;



	return phy_ethtool_ksettings_get(phydev, cmd);

}



static int xge_set_link_ksettings(struct net_device *ndev,

				  const struct ethtool_link_ksettings *cmd)

{

	struct phy_device *phydev = ndev->phydev;



	if (!phydev)

		return -ENODEV;



	return phy_ethtool_ksettings_set(phydev, cmd);

}



static const struct ethtool_ops xge_ethtool_ops = {

	.get_drvinfo = xge_get_drvinfo,

	.get_link = ethtool_op_get_link,

	.get_strings = xge_get_strings,

	.get_sset_count = xge_get_sset_count,

	.get_ethtool_stats = xge_get_ethtool_stats,

	.get_link_ksettings = xge_get_link_ksettings,

	.set_link_ksettings = xge_set_link_ksettings,

};



void xge_set_ethtool_ops(struct net_device *ndev)

{

	ndev->ethtool_ops = &xge_ethtool_ops;

}

drivers/net/ethernet/apm/xgene-v2/mac.c

+1 −1
Original line number Diff line number Diff line
@@ -27,7 +27,7 @@ void xge_mac_reset(struct xge_pdata *pdata) 
	xge_wr_csr(pdata, MAC_CONFIG_1, 0);

}



static void xge_mac_set_speed(struct xge_pdata *pdata)

void xge_mac_set_speed(struct xge_pdata *pdata)

{

	u32 icm0, icm2, ecm0, mc2;

	u32 intf_ctrl, rgmii;