ewrk3/tulip: Move the DEC - Tulip drivers

Move the DEC - Tulip driver into drivers/net/ethernet/dec/tulip/
and make the necessary Kconfig and Makefile changes.

The Digital Equioment (DEC) driver ewrk3 was moved into
drivers/net/ethernet/dec/ and the remaining drivers (Tulip)
were moved into drivers/net/ethernet/dec/tulip/

CC: Tobias Ringstrom <tori@unhappy.mine.nu>
CC: Grant Grundler <grundler@parisc-linux.org>
CC: David Davies <davies@maniac.ultranet.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Grant Grundler <grundler@parisc-linux.org>

1 files changed, 260 insertions, 0 deletions

diff --git a/drivers/net/ethernet/dec/tulip/21142.c b/drivers/net/ethernet/dec/tulip/21142.c
new file mode 100644
index 000000000000..092c3faa882a
--- /dev/null
+++ b/drivers/net/ethernet/dec/tulip/21142.c
@@ -0,0 +1,260 @@
+/*
+	drivers/net/tulip/21142.c
+
+	Copyright 2000,2001  The Linux Kernel Team
+	Written/copyright 1994-2001 by Donald Becker.
+
+	This software may be used and distributed according to the terms
+	of the GNU General Public License, incorporated herein by reference.
+
+	Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
+	for more information on this driver.
+
+	DC21143 manual "21143 PCI/CardBus 10/100Mb/s Ethernet LAN Controller
+	Hardware Reference Manual" is currently available at :
+	http://developer.intel.com/design/network/manuals/278074.htm
+
+	Please submit bugs to http://bugzilla.kernel.org/ .
+*/
+
+#include <linux/delay.h>
+#include "tulip.h"
+
+
+static u16 t21142_csr13[] = { 0x0001, 0x0009, 0x0009, 0x0000, 0x0001, };
+u16 t21142_csr14[] =	    { 0xFFFF, 0x0705, 0x0705, 0x0000, 0x7F3D, };
+static u16 t21142_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
+
+
+/* Handle the 21143 uniquely: do autoselect with NWay, not the EEPROM list
+   of available transceivers.  */
+void t21142_media_task(struct work_struct *work)
+{
+	struct tulip_private *tp =
+		container_of(work, struct tulip_private, media_work);
+	struct net_device *dev = tp->dev;
+	void __iomem *ioaddr = tp->base_addr;
+	int csr12 = ioread32(ioaddr + CSR12);
+	int next_tick = 60*HZ;
+	int new_csr6 = 0;
+	int csr14 = ioread32(ioaddr + CSR14);
+
+	/* CSR12[LS10,LS100] are not reliable during autonegotiation */
+	if ((csr14 & 0x80) && (csr12 & 0x7000) != 0x5000)
+		csr12 |= 6;
+	if (tulip_debug > 2)
+		dev_info(&dev->dev, "21143 negotiation status %08x, %s\n",
+			 csr12, medianame[dev->if_port]);
+	if (tulip_media_cap[dev->if_port] & MediaIsMII) {
+		if (tulip_check_duplex(dev) < 0) {
+			netif_carrier_off(dev);
+			next_tick = 3*HZ;
+		} else {
+			netif_carrier_on(dev);
+			next_tick = 60*HZ;
+		}
+	} else if (tp->nwayset) {
+		/* Don't screw up a negotiated session! */
+		if (tulip_debug > 1)
+			dev_info(&dev->dev,
+				 "Using NWay-set %s media, csr12 %08x\n",
+				 medianame[dev->if_port], csr12);
+	} else if (tp->medialock) {
+			;
+	} else if (dev->if_port == 3) {
+		if (csr12 & 2) {	/* No 100mbps link beat, revert to 10mbps. */
+			if (tulip_debug > 1)
+				dev_info(&dev->dev,
+					 "No 21143 100baseTx link beat, %08x, trying NWay\n",
+					 csr12);
+			t21142_start_nway(dev);
+			next_tick = 3*HZ;
+		}
+	} else if ((csr12 & 0x7000) != 0x5000) {
+		/* Negotiation failed.  Search media types. */
+		if (tulip_debug > 1)
+			dev_info(&dev->dev,
+				 "21143 negotiation failed, status %08x\n",
+				 csr12);
+		if (!(csr12 & 4)) {		/* 10mbps link beat good. */
+			new_csr6 = 0x82420000;
+			dev->if_port = 0;
+			iowrite32(0, ioaddr + CSR13);
+			iowrite32(0x0003FFFF, ioaddr + CSR14);
+			iowrite16(t21142_csr15[dev->if_port], ioaddr + CSR15);
+			iowrite32(t21142_csr13[dev->if_port], ioaddr + CSR13);
+		} else {
+			/* Select 100mbps port to check for link beat. */
+			new_csr6 = 0x83860000;
+			dev->if_port = 3;
+			iowrite32(0, ioaddr + CSR13);
+			iowrite32(0x0003FFFF, ioaddr + CSR14);
+			iowrite16(8, ioaddr + CSR15);
+			iowrite32(1, ioaddr + CSR13);
+		}
+		if (tulip_debug > 1)
+			dev_info(&dev->dev, "Testing new 21143 media %s\n",
+				 medianame[dev->if_port]);
+		if (new_csr6 != (tp->csr6 & ~0x00D5)) {
+			tp->csr6 &= 0x00D5;
+			tp->csr6 |= new_csr6;
+			iowrite32(0x0301, ioaddr + CSR12);
+			tulip_restart_rxtx(tp);
+		}
+		next_tick = 3*HZ;
+	}
+
+	/* mod_timer synchronizes us with potential add_timer calls
+	 * from interrupts.
+	 */
+	mod_timer(&tp->timer, RUN_AT(next_tick));
+}
+
+
+void t21142_start_nway(struct net_device *dev)
+{
+	struct tulip_private *tp = netdev_priv(dev);
+	void __iomem *ioaddr = tp->base_addr;
+	int csr14 = ((tp->sym_advertise & 0x0780) << 9)  |
+		((tp->sym_advertise & 0x0020) << 1) | 0xffbf;
+
+	dev->if_port = 0;
+	tp->nway = tp->mediasense = 1;
+	tp->nwayset = tp->lpar = 0;
+	if (tulip_debug > 1)
+		netdev_dbg(dev, "Restarting 21143 autonegotiation, csr14=%08x\n",
+			   csr14);
+	iowrite32(0x0001, ioaddr + CSR13);
+	udelay(100);
+	iowrite32(csr14, ioaddr + CSR14);
+	tp->csr6 = 0x82420000 | (tp->sym_advertise & 0x0040 ? FullDuplex : 0);
+	iowrite32(tp->csr6, ioaddr + CSR6);
+	if (tp->mtable  &&  tp->mtable->csr15dir) {
+		iowrite32(tp->mtable->csr15dir, ioaddr + CSR15);
+		iowrite32(tp->mtable->csr15val, ioaddr + CSR15);
+	} else
+		iowrite16(0x0008, ioaddr + CSR15);
+	iowrite32(0x1301, ioaddr + CSR12); 		/* Trigger NWAY. */
+}
+
+
+
+void t21142_lnk_change(struct net_device *dev, int csr5)
+{
+	struct tulip_private *tp = netdev_priv(dev);
+	void __iomem *ioaddr = tp->base_addr;
+	int csr12 = ioread32(ioaddr + CSR12);
+	int csr14 = ioread32(ioaddr + CSR14);
+
+	/* CSR12[LS10,LS100] are not reliable during autonegotiation */
+	if ((csr14 & 0x80) && (csr12 & 0x7000) != 0x5000)
+		csr12 |= 6;
+	if (tulip_debug > 1)
+		dev_info(&dev->dev,
+			 "21143 link status interrupt %08x, CSR5 %x, %08x\n",
+			 csr12, csr5, csr14);
+
+	/* If NWay finished and we have a negotiated partner capability. */
+	if (tp->nway  &&  !tp->nwayset  &&  (csr12 & 0x7000) == 0x5000) {
+		int setup_done = 0;
+		int negotiated = tp->sym_advertise & (csr12 >> 16);
+		tp->lpar = csr12 >> 16;
+		tp->nwayset = 1;
+		/* If partner cannot negotiate, it is 10Mbps Half Duplex */
+		if (!(csr12 & 0x8000))		dev->if_port = 0;
+		else if (negotiated & 0x0100)	dev->if_port = 5;
+		else if (negotiated & 0x0080)	dev->if_port = 3;
+		else if (negotiated & 0x0040)	dev->if_port = 4;
+		else if (negotiated & 0x0020)	dev->if_port = 0;
+		else {
+			tp->nwayset = 0;
+			if ((csr12 & 2) == 0  &&  (tp->sym_advertise & 0x0180))
+				dev->if_port = 3;
+		}
+		tp->full_duplex = (tulip_media_cap[dev->if_port] & MediaAlwaysFD) ? 1:0;
+
+		if (tulip_debug > 1) {
+			if (tp->nwayset)
+				dev_info(&dev->dev,
+					 "Switching to %s based on link negotiation %04x & %04x = %04x\n",
+					 medianame[dev->if_port],
+					 tp->sym_advertise, tp->lpar,
+					 negotiated);
+			else
+				dev_info(&dev->dev,
+					 "Autonegotiation failed, using %s, link beat status %04x\n",
+					 medianame[dev->if_port], csr12);
+		}
+
+		if (tp->mtable) {
+			int i;
+			for (i = 0; i < tp->mtable->leafcount; i++)
+				if (tp->mtable->mleaf[i].media == dev->if_port) {
+					int startup = ! ((tp->chip_id == DC21143 && (tp->revision == 48 || tp->revision == 65)));
+					tp->cur_index = i;
+					tulip_select_media(dev, startup);
+					setup_done = 1;
+					break;
+				}
+		}
+		if ( ! setup_done) {
+			tp->csr6 = (dev->if_port & 1 ? 0x838E0000 : 0x82420000) | (tp->csr6 & 0x20ff);
+			if (tp->full_duplex)
+				tp->csr6 |= 0x0200;
+			iowrite32(1, ioaddr + CSR13);
+		}
+#if 0							/* Restart shouldn't be needed. */
+		iowrite32(tp->csr6 | RxOn, ioaddr + CSR6);
+		if (tulip_debug > 2)
+			netdev_dbg(dev, " Restarting Tx and Rx, CSR5 is %08x\n",
+				   ioread32(ioaddr + CSR5));
+#endif
+		tulip_start_rxtx(tp);
+		if (tulip_debug > 2)
+			netdev_dbg(dev, " Setting CSR6 %08x/%x CSR12 %08x\n",
+				   tp->csr6, ioread32(ioaddr + CSR6),
+				   ioread32(ioaddr + CSR12));
+	} else if ((tp->nwayset  &&  (csr5 & 0x08000000) &&
+		    (dev->if_port == 3  ||  dev->if_port == 5) &&
+		    (csr12 & 2) == 2) ||
+		   (tp->nway && (csr5 & (TPLnkFail)))) {
+		/* Link blew? Maybe restart NWay. */
+		del_timer_sync(&tp->timer);
+		t21142_start_nway(dev);
+		tp->timer.expires = RUN_AT(3*HZ);
+		add_timer(&tp->timer);
+	} else if (dev->if_port == 3  ||  dev->if_port == 5) {
+		if (tulip_debug > 1)
+			dev_info(&dev->dev, "21143 %s link beat %s\n",
+				 medianame[dev->if_port],
+				 (csr12 & 2) ? "failed" : "good");
+		if ((csr12 & 2)  &&  ! tp->medialock) {
+			del_timer_sync(&tp->timer);
+			t21142_start_nway(dev);
+			tp->timer.expires = RUN_AT(3*HZ);
+			add_timer(&tp->timer);
+		} else if (dev->if_port == 5)
+			iowrite32(csr14 & ~0x080, ioaddr + CSR14);
+	} else if (dev->if_port == 0  ||  dev->if_port == 4) {
+		if ((csr12 & 4) == 0)
+			dev_info(&dev->dev, "21143 10baseT link beat good\n");
+	} else if (!(csr12 & 4)) {		/* 10mbps link beat good. */
+		if (tulip_debug)
+			dev_info(&dev->dev, "21143 10mbps sensed media\n");
+		dev->if_port = 0;
+	} else if (tp->nwayset) {
+		if (tulip_debug)
+			dev_info(&dev->dev, "21143 using NWay-set %s, csr6 %08x\n",
+				 medianame[dev->if_port], tp->csr6);
+	} else {		/* 100mbps link beat good. */
+		if (tulip_debug)
+			dev_info(&dev->dev, "21143 100baseTx sensed media\n");
+		dev->if_port = 3;
+		tp->csr6 = 0x838E0000 | (tp->csr6 & 0x20ff);
+		iowrite32(0x0003FF7F, ioaddr + CSR14);
+		iowrite32(0x0301, ioaddr + CSR12);
+		tulip_restart_rxtx(tp);
+	}
+}
+
+