net: remove netx ethernet driver (b0e1ee43) · Commits · 戴 / test

drivers/net/ethernet/Kconfig

+0 −11

Original line number	Diff line number	Diff line
		@@ -140,17 +140,6 @@ source "drivers/net/ethernet/neterion/Kconfig"
		source "drivers/net/ethernet/netronome/Kconfig"
		source "drivers/net/ethernet/ni/Kconfig"
		source "drivers/net/ethernet/8390/Kconfig"

		config NET_NETX
		tristate "NetX Ethernet support"
		select MII
		depends on ARCH_NETX
		---help---
		This is support for the Hilscher netX builtin Ethernet ports

		To compile this driver as a module, choose M here. The module
		will be called netx-eth.

		source "drivers/net/ethernet/nvidia/Kconfig"
		source "drivers/net/ethernet/nxp/Kconfig"
		source "drivers/net/ethernet/oki-semi/Kconfig"

drivers/net/ethernet/Makefile

+0 −1

Original line number	Diff line number	Diff line
		@@ -64,7 +64,6 @@ obj-$(CONFIG_NET_VENDOR_NATSEMI) += natsemi/
		obj-$(CONFIG_NET_VENDOR_NETERION) += neterion/
		obj-$(CONFIG_NET_VENDOR_NETRONOME) += netronome/
		obj-$(CONFIG_NET_VENDOR_NI) += ni/
		obj-$(CONFIG_NET_NETX) += netx-eth.o
		obj-$(CONFIG_NET_VENDOR_NVIDIA) += nvidia/
		obj-$(CONFIG_LPC_ENET) += nxp/
		obj-$(CONFIG_NET_VENDOR_OKI) += oki-semi/

drivers/net/ethernet/netx-eth.c

deleted100644 → 0

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Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* drivers/net/ethernet/netx-eth.c
		*
		* Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
		*/

		#include <linux/init.h>
		#include <linux/interrupt.h>
		#include <linux/module.h>
		#include <linux/kernel.h>
		#include <linux/delay.h>

		#include <linux/netdevice.h>
		#include <linux/platform_device.h>
		#include <linux/etherdevice.h>
		#include <linux/skbuff.h>
		#include <linux/mii.h>

		#include <asm/io.h>
		#include <mach/hardware.h>
		#include <mach/netx-regs.h>
		#include <mach/pfifo.h>
		#include <mach/xc.h>
		#include <linux/platform_data/eth-netx.h>

		/* XC Fifo Offsets */
		#define EMPTY_PTR_FIFO(xcno) (0 + ((xcno) << 3)) /* Index of the empty pointer FIFO */
		#define IND_FIFO_PORT_HI(xcno) (1 + ((xcno) << 3)) /* Index of the FIFO where received */
		/* Data packages are indicated by XC */
		#define IND_FIFO_PORT_LO(xcno) (2 + ((xcno) << 3)) /* Index of the FIFO where received */
		/* Data packages are indicated by XC */
		#define REQ_FIFO_PORT_HI(xcno) (3 + ((xcno) << 3)) /* Index of the FIFO where Data packages */
		/* have to be indicated by ARM which */
		/* shall be sent */
		#define REQ_FIFO_PORT_LO(xcno) (4 + ((xcno) << 3)) /* Index of the FIFO where Data packages */
		/* have to be indicated by ARM which shall */
		/* be sent */
		#define CON_FIFO_PORT_HI(xcno) (5 + ((xcno) << 3)) /* Index of the FIFO where sent Data packages */
		/* are confirmed */
		#define CON_FIFO_PORT_LO(xcno) (6 + ((xcno) << 3)) /* Index of the FIFO where sent Data */
		/* packages are confirmed */
		#define PFIFO_MASK(xcno) (0x7f << (xcno*8))

		#define FIFO_PTR_FRAMELEN_SHIFT 0
		#define FIFO_PTR_FRAMELEN_MASK (0x7ff << 0)
		#define FIFO_PTR_FRAMELEN(len) (((len) << 0) & FIFO_PTR_FRAMELEN_MASK)
		#define FIFO_PTR_TIMETRIG (1<<11)
		#define FIFO_PTR_MULTI_REQ
		#define FIFO_PTR_ORIGIN (1<<14)
		#define FIFO_PTR_VLAN (1<<15)
		#define FIFO_PTR_FRAMENO_SHIFT 16
		#define FIFO_PTR_FRAMENO_MASK (0x3f << 16)
		#define FIFO_PTR_FRAMENO(no) (((no) << 16) & FIFO_PTR_FRAMENO_MASK)
		#define FIFO_PTR_SEGMENT_SHIFT 22
		#define FIFO_PTR_SEGMENT_MASK (0xf << 22)
		#define FIFO_PTR_SEGMENT(seg) (((seg) & 0xf) << 22)
		#define FIFO_PTR_ERROR_SHIFT 28
		#define FIFO_PTR_ERROR_MASK (0xf << 28)

		#define ISR_LINK_STATUS_CHANGE (1<<4)
		#define ISR_IND_LO (1<<3)
		#define ISR_CON_LO (1<<2)
		#define ISR_IND_HI (1<<1)
		#define ISR_CON_HI (1<<0)

		#define ETH_MAC_LOCAL_CONFIG 0x1560
		#define ETH_MAC_4321 0x1564
		#define ETH_MAC_65 0x1568

		#define MAC_TRAFFIC_CLASS_ARRANGEMENT_SHIFT 16
		#define MAC_TRAFFIC_CLASS_ARRANGEMENT_MASK (0xf<<MAC_TRAFFIC_CLASS_ARRANGEMENT_SHIFT)
		#define MAC_TRAFFIC_CLASS_ARRANGEMENT(x) (((x)<<MAC_TRAFFIC_CLASS_ARRANGEMENT_SHIFT) & MAC_TRAFFIC_CLASS_ARRANGEMENT_MASK)
		#define LOCAL_CONFIG_LINK_STATUS_IRQ_EN (1<<24)
		#define LOCAL_CONFIG_CON_LO_IRQ_EN (1<<23)
		#define LOCAL_CONFIG_CON_HI_IRQ_EN (1<<22)
		#define LOCAL_CONFIG_IND_LO_IRQ_EN (1<<21)
		#define LOCAL_CONFIG_IND_HI_IRQ_EN (1<<20)

		#define CARDNAME "netx-eth"

		/* LSB must be zero */
		#define INTERNAL_PHY_ADR 0x1c

		struct netx_eth_priv {
		void __iomem sram_base, xpec_base, *xmac_base;
		int id;
		struct mii_if_info mii;
		u32 msg_enable;
		struct xc *xc;
		spinlock_t lock;
		};

		static void netx_eth_set_multicast_list(struct net_device *ndev)
		{
		/* implement me */
		}

		static int
		netx_eth_hard_start_xmit(struct sk_buff skb, struct net_device ndev)
		{
		struct netx_eth_priv *priv = netdev_priv(ndev);
		unsigned char *buf = skb->data;
		unsigned int len = skb->len;

		spin_lock_irq(&priv->lock);
		memcpy_toio(priv->sram_base + 1560, (void *)buf, len);
		if (len < 60) {
		memset_io(priv->sram_base + 1560 + len, 0, 60 - len);
		len = 60;
		}

		pfifo_push(REQ_FIFO_PORT_LO(priv->id),
		FIFO_PTR_SEGMENT(priv->id) \|
		FIFO_PTR_FRAMENO(1) \|
		FIFO_PTR_FRAMELEN(len));

		ndev->stats.tx_packets++;
		ndev->stats.tx_bytes += skb->len;

		netif_stop_queue(ndev);
		spin_unlock_irq(&priv->lock);
		dev_kfree_skb(skb);

		return NETDEV_TX_OK;
		}

		static void netx_eth_receive(struct net_device *ndev)
		{
		struct netx_eth_priv *priv = netdev_priv(ndev);
		unsigned int val, frameno, seg, len;
		unsigned char *data;
		struct sk_buff *skb;

		val = pfifo_pop(IND_FIFO_PORT_LO(priv->id));

		frameno = (val & FIFO_PTR_FRAMENO_MASK) >> FIFO_PTR_FRAMENO_SHIFT;
		seg = (val & FIFO_PTR_SEGMENT_MASK) >> FIFO_PTR_SEGMENT_SHIFT;
		len = (val & FIFO_PTR_FRAMELEN_MASK) >> FIFO_PTR_FRAMELEN_SHIFT;

		skb = netdev_alloc_skb(ndev, len);
		if (unlikely(skb == NULL)) {
		ndev->stats.rx_dropped++;
		return;
		}

		data = skb_put(skb, len);

		memcpy_fromio(data, priv->sram_base + frameno * 1560, len);

		pfifo_push(EMPTY_PTR_FIFO(priv->id),
		FIFO_PTR_SEGMENT(seg) \| FIFO_PTR_FRAMENO(frameno));

		skb->protocol = eth_type_trans(skb, ndev);
		netif_rx(skb);
		ndev->stats.rx_packets++;
		ndev->stats.rx_bytes += len;
		}

		static irqreturn_t
		netx_eth_interrupt(int irq, void *dev_id)
		{
		struct net_device *ndev = dev_id;
		struct netx_eth_priv *priv = netdev_priv(ndev);
		int status;
		unsigned long flags;

		spin_lock_irqsave(&priv->lock, flags);

		status = readl(NETX_PFIFO_XPEC_ISR(priv->id));
		while (status) {
		int fill_level;
		writel(status, NETX_PFIFO_XPEC_ISR(priv->id));

		if ((status & ISR_CON_HI) \|\| (status & ISR_IND_HI))
		printk("%s: unexpected status: 0x%08x\n",
		__func__, status);

		fill_level =
		readl(NETX_PFIFO_FILL_LEVEL(IND_FIFO_PORT_LO(priv->id)));
		while (fill_level--)
		netx_eth_receive(ndev);

		if (status & ISR_CON_LO)
		netif_wake_queue(ndev);

		if (status & ISR_LINK_STATUS_CHANGE)
		mii_check_media(&priv->mii, netif_msg_link(priv), 1);

		status = readl(NETX_PFIFO_XPEC_ISR(priv->id));
		}
		spin_unlock_irqrestore(&priv->lock, flags);
		return IRQ_HANDLED;
		}

		static int netx_eth_open(struct net_device *ndev)
		{
		struct netx_eth_priv *priv = netdev_priv(ndev);

		if (request_irq
		(ndev->irq, netx_eth_interrupt, IRQF_SHARED, ndev->name, ndev))
		return -EAGAIN;

		writel(ndev->dev_addr[0] \|
		ndev->dev_addr[1]<<8 \|
		ndev->dev_addr[2]<<16 \|
		ndev->dev_addr[3]<<24,
		priv->xpec_base + NETX_XPEC_RAM_START_OFS + ETH_MAC_4321);
		writel(ndev->dev_addr[4] \|
		ndev->dev_addr[5]<<8,
		priv->xpec_base + NETX_XPEC_RAM_START_OFS + ETH_MAC_65);

		writel(LOCAL_CONFIG_LINK_STATUS_IRQ_EN \|
		LOCAL_CONFIG_CON_LO_IRQ_EN \|
		LOCAL_CONFIG_CON_HI_IRQ_EN \|
		LOCAL_CONFIG_IND_LO_IRQ_EN \|
		LOCAL_CONFIG_IND_HI_IRQ_EN,
		priv->xpec_base + NETX_XPEC_RAM_START_OFS +
		ETH_MAC_LOCAL_CONFIG);

		mii_check_media(&priv->mii, netif_msg_link(priv), 1);
		netif_start_queue(ndev);

		return 0;
		}

		static int netx_eth_close(struct net_device *ndev)
		{
		struct netx_eth_priv *priv = netdev_priv(ndev);

		netif_stop_queue(ndev);

		writel(0,
		priv->xpec_base + NETX_XPEC_RAM_START_OFS + ETH_MAC_LOCAL_CONFIG);

		free_irq(ndev->irq, ndev);

		return 0;
		}

		static void netx_eth_timeout(struct net_device *ndev)
		{
		struct netx_eth_priv *priv = netdev_priv(ndev);
		int i;

		printk(KERN_ERR "%s: transmit timed out, resetting\n", ndev->name);

		spin_lock_irq(&priv->lock);

		xc_reset(priv->xc);
		xc_start(priv->xc);

		for (i=2; i<=18; i++)
		pfifo_push(EMPTY_PTR_FIFO(priv->id),
		FIFO_PTR_FRAMENO(i) \| FIFO_PTR_SEGMENT(priv->id));

		spin_unlock_irq(&priv->lock);

		netif_wake_queue(ndev);
		}

		static int
		netx_eth_phy_read(struct net_device *ndev, int phy_id, int reg)
		{
		unsigned int val;

		val = MIIMU_SNRDY \| MIIMU_PREAMBLE \| MIIMU_PHYADDR(phy_id) \|
		MIIMU_REGADDR(reg) \| MIIMU_PHY_NRES;

		writel(val, NETX_MIIMU);
		while (readl(NETX_MIIMU) & MIIMU_SNRDY);

		return readl(NETX_MIIMU) >> 16;

		}

		static void
		netx_eth_phy_write(struct net_device *ndev, int phy_id, int reg, int value)
		{
		unsigned int val;

		val = MIIMU_SNRDY \| MIIMU_PREAMBLE \| MIIMU_PHYADDR(phy_id) \|
		MIIMU_REGADDR(reg) \| MIIMU_PHY_NRES \| MIIMU_OPMODE_WRITE \|
		MIIMU_DATA(value);

		writel(val, NETX_MIIMU);
		while (readl(NETX_MIIMU) & MIIMU_SNRDY);
		}

		static const struct net_device_ops netx_eth_netdev_ops = {
		.ndo_open = netx_eth_open,
		.ndo_stop = netx_eth_close,
		.ndo_start_xmit = netx_eth_hard_start_xmit,
		.ndo_tx_timeout = netx_eth_timeout,
		.ndo_set_rx_mode = netx_eth_set_multicast_list,
		.ndo_validate_addr = eth_validate_addr,
		.ndo_set_mac_address = eth_mac_addr,
		};

		static int netx_eth_enable(struct net_device *ndev)
		{
		struct netx_eth_priv *priv = netdev_priv(ndev);
		unsigned int mac4321, mac65;
		int running, i, ret;
		bool inv_mac_addr = false;

		ndev->netdev_ops = &netx_eth_netdev_ops;
		ndev->watchdog_timeo = msecs_to_jiffies(5000);

		priv->msg_enable = NETIF_MSG_LINK;
		priv->mii.phy_id_mask = 0x1f;
		priv->mii.reg_num_mask = 0x1f;
		priv->mii.force_media = 0;
		priv->mii.full_duplex = 0;
		priv->mii.dev = ndev;
		priv->mii.mdio_read = netx_eth_phy_read;
		priv->mii.mdio_write = netx_eth_phy_write;
		priv->mii.phy_id = INTERNAL_PHY_ADR + priv->id;

		running = xc_running(priv->xc);
		xc_stop(priv->xc);

		/* if the xc engine is already running, assume the bootloader has
		* loaded the firmware for us
		*/
		if (running) {
		/* get Node Address from hardware */
		mac4321 = readl(priv->xpec_base +
		NETX_XPEC_RAM_START_OFS + ETH_MAC_4321);
		mac65 = readl(priv->xpec_base +
		NETX_XPEC_RAM_START_OFS + ETH_MAC_65);

		ndev->dev_addr[0] = mac4321 & 0xff;
		ndev->dev_addr[1] = (mac4321 >> 8) & 0xff;
		ndev->dev_addr[2] = (mac4321 >> 16) & 0xff;
		ndev->dev_addr[3] = (mac4321 >> 24) & 0xff;
		ndev->dev_addr[4] = mac65 & 0xff;
		ndev->dev_addr[5] = (mac65 >> 8) & 0xff;
		} else {
		if (xc_request_firmware(priv->xc)) {
		printk(CARDNAME ": requesting firmware failed\n");
		return -ENODEV;
		}
		}

		xc_reset(priv->xc);
		xc_start(priv->xc);

		if (!is_valid_ether_addr(ndev->dev_addr))
		inv_mac_addr = true;

		for (i=2; i<=18; i++)
		pfifo_push(EMPTY_PTR_FIFO(priv->id),
		FIFO_PTR_FRAMENO(i) \| FIFO_PTR_SEGMENT(priv->id));

		ret = register_netdev(ndev);
		if (inv_mac_addr)
		printk("%s: Invalid ethernet MAC address. Please set using ip\n",
		ndev->name);

		return ret;
		}

		static int netx_eth_drv_probe(struct platform_device *pdev)
		{
		struct netx_eth_priv *priv;
		struct net_device *ndev;
		struct netxeth_platform_data *pdata;
		int ret;

		ndev = alloc_etherdev(sizeof (struct netx_eth_priv));
		if (!ndev) {
		ret = -ENOMEM;
		goto exit;
		}
		SET_NETDEV_DEV(ndev, &pdev->dev);

		platform_set_drvdata(pdev, ndev);

		priv = netdev_priv(ndev);

		pdata = dev_get_platdata(&pdev->dev);
		priv->xc = request_xc(pdata->xcno, &pdev->dev);
		if (!priv->xc) {
		dev_err(&pdev->dev, "unable to request xc engine\n");
		ret = -ENODEV;
		goto exit_free_netdev;
		}

		ndev->irq = priv->xc->irq;
		priv->id = pdev->id;
		priv->xpec_base = priv->xc->xpec_base;
		priv->xmac_base = priv->xc->xmac_base;
		priv->sram_base = priv->xc->sram_base;

		spin_lock_init(&priv->lock);

		ret = pfifo_request(PFIFO_MASK(priv->id));
		if (ret) {
		printk("unable to request PFIFO\n");
		goto exit_free_xc;
		}

		ret = netx_eth_enable(ndev);
		if (ret)
		goto exit_free_pfifo;

		return 0;
		exit_free_pfifo:
		pfifo_free(PFIFO_MASK(priv->id));
		exit_free_xc:
		free_xc(priv->xc);
		exit_free_netdev:
		free_netdev(ndev);
		exit:
		return ret;
		}

		static int netx_eth_drv_remove(struct platform_device *pdev)
		{
		struct net_device *ndev = platform_get_drvdata(pdev);
		struct netx_eth_priv *priv = netdev_priv(ndev);

		unregister_netdev(ndev);
		xc_stop(priv->xc);
		free_xc(priv->xc);
		free_netdev(ndev);
		pfifo_free(PFIFO_MASK(priv->id));

		return 0;
		}

		static int netx_eth_drv_suspend(struct platform_device *pdev, pm_message_t state)
		{
		dev_err(&pdev->dev, "suspend not implemented\n");
		return 0;
		}

		static int netx_eth_drv_resume(struct platform_device *pdev)
		{
		dev_err(&pdev->dev, "resume not implemented\n");
		return 0;
		}

		static struct platform_driver netx_eth_driver = {
		.probe = netx_eth_drv_probe,
		.remove = netx_eth_drv_remove,
		.suspend = netx_eth_drv_suspend,
		.resume = netx_eth_drv_resume,
		.driver = {
		.name = CARDNAME,
		},
		};

		static int __init netx_eth_init(void)
		{
		unsigned int phy_control, val;

		printk("NetX Ethernet driver\n");

		phy_control = PHY_CONTROL_PHY_ADDRESS(INTERNAL_PHY_ADR>>1) \|
		PHY_CONTROL_PHY1_MODE(PHY_MODE_ALL) \|
		PHY_CONTROL_PHY1_AUTOMDIX \|
		PHY_CONTROL_PHY1_EN \|
		PHY_CONTROL_PHY0_MODE(PHY_MODE_ALL) \|
		PHY_CONTROL_PHY0_AUTOMDIX \|
		PHY_CONTROL_PHY0_EN \|
		PHY_CONTROL_CLK_XLATIN;

		val = readl(NETX_SYSTEM_IOC_ACCESS_KEY);
		writel(val, NETX_SYSTEM_IOC_ACCESS_KEY);

		writel(phy_control \| PHY_CONTROL_RESET, NETX_SYSTEM_PHY_CONTROL);
		udelay(100);

		val = readl(NETX_SYSTEM_IOC_ACCESS_KEY);
		writel(val, NETX_SYSTEM_IOC_ACCESS_KEY);

		writel(phy_control, NETX_SYSTEM_PHY_CONTROL);

		return platform_driver_register(&netx_eth_driver);
		}

		static void __exit netx_eth_cleanup(void)
		{
		platform_driver_unregister(&netx_eth_driver);
		}

		module_init(netx_eth_init);
		module_exit(netx_eth_cleanup);

		MODULE_AUTHOR("Sascha Hauer, Pengutronix");
		MODULE_LICENSE("GPL");
		MODULE_ALIAS("platform:" CARDNAME);
		MODULE_FIRMWARE("xc0.bin");
		MODULE_FIRMWARE("xc1.bin");
		MODULE_FIRMWARE("xc2.bin");

include/linux/platform_data/eth-netx.h

deleted100644 → 0

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Original line number	Diff line number	Diff line
		/* SPDX-License-Identifier: GPL-2.0-only */
		/*
		* Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
		*/

		#ifndef __ETH_NETX_H
		#define __ETH_NETX_H

		struct netxeth_platform_data {
		unsigned int xcno; /* number of xmac/xpec engine this eth uses */
		};

		#endif

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