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Commit aaa56720 authored by Jean Sacren's avatar Jean Sacren Committed by David S. Miller
Browse files

sxgbe: remove unused code 



Remove the unused code of sxgbe_xpcs.

Reported-by: default avatarJulia Lawall <julia.lawall@lip6.fr>
Suggested-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarJean Sacren <sakiwit@gmail.com>
Cc: Byungho An <bh74.an@samsung.com>
Cc: Girish K S <ks.giri@samsung.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1601191918470.2531@hadrien


Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 12f08412

drivers/net/ethernet/samsung/sxgbe/Makefile

+1 −1
Original line number Diff line number Diff line 
obj-$(CONFIG_SXGBE_ETH) += samsung-sxgbe.o

samsung-sxgbe-objs:= sxgbe_platform.o sxgbe_main.o sxgbe_desc.o \

		sxgbe_dma.o sxgbe_core.o sxgbe_mtl.o  sxgbe_mdio.o \

		sxgbe_ethtool.o sxgbe_xpcs.o $(samsung-sxgbe-y)
 
		sxgbe_ethtool.o $(samsung-sxgbe-y)

drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.c

deleted100644 → 0
+0 −91
Original line number Diff line number Diff line 
/* 10G controller driver for Samsung SoCs

 *

 * Copyright (C) 2013 Samsung Electronics Co., Ltd.

 *		http://www.samsung.com

 *

 * Author: Siva Reddy Kallam <siva.kallam@samsung.com>

 *

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

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#include <linux/bitops.h>

#include <linux/kernel.h>

#include <linux/netdevice.h>

#include <linux/phy.h>

#include "sxgbe_common.h"

#include "sxgbe_xpcs.h"



static int sxgbe_xpcs_read(struct net_device *ndev, unsigned int reg)

{

	u32 value;

	struct sxgbe_priv_data *priv = netdev_priv(ndev);



	value = readl(priv->ioaddr + XPCS_OFFSET + reg);



	return value;

}



static int sxgbe_xpcs_write(struct net_device *ndev, int reg, int data)

{

	struct sxgbe_priv_data *priv = netdev_priv(ndev);



	writel(data, priv->ioaddr + XPCS_OFFSET + reg);



	return 0;

}



int sxgbe_xpcs_init(struct net_device *ndev)

{

	u32 value;



	value = sxgbe_xpcs_read(ndev, SR_PCS_MMD_CONTROL1);

	/* 10G XAUI mode */

	sxgbe_xpcs_write(ndev, SR_PCS_CONTROL2, XPCS_TYPE_SEL_X);

	sxgbe_xpcs_write(ndev, VR_PCS_MMD_XAUI_MODE_CONTROL, XPCS_XAUI_MODE);

	sxgbe_xpcs_write(ndev, VR_PCS_MMD_XAUI_MODE_CONTROL, value | BIT(13));

	sxgbe_xpcs_write(ndev, SR_PCS_MMD_CONTROL1, value | BIT(11));



	do {

		value = sxgbe_xpcs_read(ndev, VR_PCS_MMD_DIGITAL_STATUS);

	} while ((value & XPCS_QSEQ_STATE_MPLLOFF) == XPCS_QSEQ_STATE_STABLE);



	value = sxgbe_xpcs_read(ndev, SR_PCS_MMD_CONTROL1);

	sxgbe_xpcs_write(ndev, SR_PCS_MMD_CONTROL1, value & ~BIT(11));



	do {

		value = sxgbe_xpcs_read(ndev, VR_PCS_MMD_DIGITAL_STATUS);

	} while ((value & XPCS_QSEQ_STATE_MPLLOFF) != XPCS_QSEQ_STATE_STABLE);



	return 0;

}



int sxgbe_xpcs_init_1G(struct net_device *ndev)

{

	int value;



	/* 10GBASE-X PCS (1G) mode */

	sxgbe_xpcs_write(ndev, SR_PCS_CONTROL2, XPCS_TYPE_SEL_X);

	sxgbe_xpcs_write(ndev, VR_PCS_MMD_XAUI_MODE_CONTROL, XPCS_XAUI_MODE);

	value = sxgbe_xpcs_read(ndev, SR_PCS_MMD_CONTROL1);

	sxgbe_xpcs_write(ndev, SR_PCS_MMD_CONTROL1, value & ~BIT(13));



	value = sxgbe_xpcs_read(ndev, SR_MII_MMD_CONTROL);

	sxgbe_xpcs_write(ndev, SR_MII_MMD_CONTROL, value | BIT(6));

	sxgbe_xpcs_write(ndev, SR_MII_MMD_CONTROL, value & ~BIT(13));

	value = sxgbe_xpcs_read(ndev, SR_PCS_MMD_CONTROL1);

	sxgbe_xpcs_write(ndev, SR_PCS_MMD_CONTROL1, value | BIT(11));



	do {

		value = sxgbe_xpcs_read(ndev, VR_PCS_MMD_DIGITAL_STATUS);

	} while ((value & XPCS_QSEQ_STATE_MPLLOFF) != XPCS_QSEQ_STATE_STABLE);



	value = sxgbe_xpcs_read(ndev, SR_PCS_MMD_CONTROL1);

	sxgbe_xpcs_write(ndev, SR_PCS_MMD_CONTROL1, value & ~BIT(11));



	/* Auto Negotiation cluase 37 enable */

	value = sxgbe_xpcs_read(ndev, SR_MII_MMD_CONTROL);

	sxgbe_xpcs_write(ndev, SR_MII_MMD_CONTROL, value | BIT(12));



	return 0;

}

drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.h

deleted100644 → 0
+0 −38
Original line number Diff line number Diff line 
/* 10G controller driver for Samsung SoCs

 *

 * Copyright (C) 2013 Samsung Electronics Co., Ltd.

 *		http://www.samsung.com

 *

 * Author: Byungho An <bh74.an@samsung.com>

 *

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

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#ifndef __SXGBE_XPCS_H__

#define __SXGBE_XPCS_H__



/* XPCS Registers */

#define XPCS_OFFSET			0x1A060000

#define SR_PCS_MMD_CONTROL1		0x030000

#define SR_PCS_CONTROL2			0x030007

#define VR_PCS_MMD_XAUI_MODE_CONTROL	0x038004

#define VR_PCS_MMD_DIGITAL_STATUS	0x038010

#define SR_MII_MMD_CONTROL		0x1F0000

#define SR_MII_MMD_AN_ADV		0x1F0004

#define SR_MII_MMD_AN_LINK_PARTNER_BA	0x1F0005

#define VR_MII_MMD_AN_CONTROL		0x1F8001

#define VR_MII_MMD_AN_INT_STATUS	0x1F8002



#define XPCS_QSEQ_STATE_STABLE		0x10

#define XPCS_QSEQ_STATE_MPLLOFF		0x1c

#define XPCS_TYPE_SEL_R			0x00

#define XPCS_TYPE_SEL_X			0x01

#define XPCS_TYPE_SEL_W			0x02

#define XPCS_XAUI_MODE			0x00

#define XPCS_RXAUI_MODE			0x01



int sxgbe_xpcs_init(struct net_device *ndev);

int sxgbe_xpcs_init_1G(struct net_device *ndev);



#endif /* __SXGBE_XPCS_H__ */