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sxgbe: remove unused code 

Remove the unused code of sxgbe_xpcs.

Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Suggested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jean 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: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jean Sacren 2016-02-09 20:47:17 -07:00 committed by David S. Miller
parent 12f084120e
commit aaa5672052
3 changed files with 1 additions and 130 deletions
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2
drivers/net/ethernet/samsung/sxgbe/Makefile
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@ -1,4 +1,4 @@
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)

91
drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.c
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@ -1,91 +0,0 @@
/* 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;
}

38
drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.h
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@ -1,38 +0,0 @@
/* 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__ */