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>

diff --git a/drivers/net/ethernet/samsung/sxgbe/Makefile b/drivers/net/ethernet/samsung/sxgbe/Makefile
index dcc80b9d4370eb47b1e001cf7c44fa95ebdc8ce1..31e968561d5ce37f2c1a4b0eb3553866a2f0df1e 100644 (file)
--- a/drivers/net/ethernet/samsung/sxgbe/Makefile
+++ b/drivers/net/ethernet/samsung/sxgbe/Makefile
@@ -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)

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.c
deleted file mode 100644 (file)
index 51c3219..0000000
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.c
+++ /dev/null
@@ -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;
-}

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.h b/drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.h
deleted file mode 100644 (file)
index 6b26a50..0000000
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_xpcs.h
+++ /dev/null
@@ -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__ */