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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-05-20 07:15:19 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-12 00:21:25 -0700
commita88394cfb58007cca945699545469017beb0d206 (patch)
tree7efa1efcaf18d1b8f7bede1f25acdfc0c657c086 /drivers/net/tulip/pnic2.c
parent5ff2241dd42ade03572753f9ed7743719b47c474 (diff)
downloadop-kernel-dev-a88394cfb58007cca945699545469017beb0d206.zip
op-kernel-dev-a88394cfb58007cca945699545469017beb0d206.tar.gz
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>
Diffstat (limited to 'drivers/net/tulip/pnic2.c')
-rw-r--r--drivers/net/tulip/pnic2.c406
1 files changed, 0 insertions, 406 deletions
diff --git a/drivers/net/tulip/pnic2.c b/drivers/net/tulip/pnic2.c
deleted file mode 100644
index 93358ee..0000000
--- a/drivers/net/tulip/pnic2.c
+++ /dev/null
@@ -1,406 +0,0 @@
-/*
- drivers/net/tulip/pnic2.c
-
- Copyright 2000,2001 The Linux Kernel Team
- Written/copyright 1994-2001 by Donald Becker.
- Modified to hep support PNIC_II by Kevin B. Hendricks
-
- 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.
-
- Please submit bugs to http://bugzilla.kernel.org/ .
-*/
-
-
-/* Understanding the PNIC_II - everything is this file is based
- * on the PNIC_II_PDF datasheet which is sorely lacking in detail
- *
- * As I understand things, here are the registers and bits that
- * explain the masks and constants used in this file that are
- * either different from the 21142/3 or important for basic operation.
- *
- *
- * CSR 6 (mask = 0xfe3bd1fd of bits not to change)
- * -----
- * Bit 24 - SCR
- * Bit 23 - PCS
- * Bit 22 - TTM (Trasmit Threshold Mode)
- * Bit 18 - Port Select
- * Bit 13 - Start - 1, Stop - 0 Transmissions
- * Bit 11:10 - Loop Back Operation Mode
- * Bit 9 - Full Duplex mode (Advertise 10BaseT-FD is CSR14<7> is set)
- * Bit 1 - Start - 1, Stop - 0 Receive
- *
- *
- * CSR 14 (mask = 0xfff0ee39 of bits not to change)
- * ------
- * Bit 19 - PAUSE-Pause
- * Bit 18 - Advertise T4
- * Bit 17 - Advertise 100baseTx-FD
- * Bit 16 - Advertise 100baseTx-HD
- * Bit 12 - LTE - Link Test Enable
- * Bit 7 - ANE - Auto Negotiate Enable
- * Bit 6 - HDE - Advertise 10baseT-HD
- * Bit 2 - Reset to Power down - kept as 1 for normal operation
- * Bit 1 - Loop Back enable for 10baseT MCC
- *
- *
- * CSR 12
- * ------
- * Bit 25 - Partner can do T4
- * Bit 24 - Partner can do 100baseTx-FD
- * Bit 23 - Partner can do 100baseTx-HD
- * Bit 22 - Partner can do 10baseT-FD
- * Bit 21 - Partner can do 10baseT-HD
- * Bit 15 - LPN is 1 if all above bits are valid other wise 0
- * Bit 14:12 - autonegotiation state (write 001 to start autonegotiate)
- * Bit 3 - Autopolarity state
- * Bit 2 - LS10B - link state of 10baseT 0 - good, 1 - failed
- * Bit 1 - LS100B - link state of 100baseT 0 - good, 1 - failed
- *
- *
- * Data Port Selection Info
- *-------------------------
- *
- * CSR14<7> CSR6<18> CSR6<22> CSR6<23> CSR6<24> MODE/PORT
- * 1 0 0 (X) 0 (X) 1 NWAY
- * 0 0 1 0 (X) 0 10baseT
- * 0 1 0 1 1 (X) 100baseT
- *
- *
- */
-
-
-
-#include "tulip.h"
-#include <linux/delay.h>
-
-
-void pnic2_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- int next_tick = 60*HZ;
-
- if (tulip_debug > 3)
- dev_info(&dev->dev, "PNIC2 negotiation status %08x\n",
- ioread32(ioaddr + CSR12));
-
- if (next_tick) {
- mod_timer(&tp->timer, RUN_AT(next_tick));
- }
-}
-
-
-void pnic2_start_nway(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- int csr14;
- int csr12;
-
- /* set up what to advertise during the negotiation */
-
- /* load in csr14 and mask off bits not to touch
- * comment at top of file explains mask value
- */
- csr14 = (ioread32(ioaddr + CSR14) & 0xfff0ee39);
-
- /* bit 17 - advetise 100baseTx-FD */
- if (tp->sym_advertise & 0x0100) csr14 |= 0x00020000;
-
- /* bit 16 - advertise 100baseTx-HD */
- if (tp->sym_advertise & 0x0080) csr14 |= 0x00010000;
-
- /* bit 6 - advertise 10baseT-HD */
- if (tp->sym_advertise & 0x0020) csr14 |= 0x00000040;
-
- /* Now set bit 12 Link Test Enable, Bit 7 Autonegotiation Enable
- * and bit 0 Don't PowerDown 10baseT
- */
- csr14 |= 0x00001184;
-
- if (tulip_debug > 1)
- netdev_dbg(dev, "Restarting PNIC2 autonegotiation, csr14=%08x\n",
- csr14);
-
- /* tell pnic2_lnk_change we are doing an nway negotiation */
- dev->if_port = 0;
- tp->nway = tp->mediasense = 1;
- tp->nwayset = tp->lpar = 0;
-
- /* now we have to set up csr6 for NWAY state */
-
- tp->csr6 = ioread32(ioaddr + CSR6);
- if (tulip_debug > 1)
- netdev_dbg(dev, "On Entry to Nway, csr6=%08x\n", tp->csr6);
-
- /* mask off any bits not to touch
- * comment at top of file explains mask value
- */
- tp->csr6 = tp->csr6 & 0xfe3bd1fd;
-
- /* don't forget that bit 9 is also used for advertising */
- /* advertise 10baseT-FD for the negotiation (bit 9) */
- if (tp->sym_advertise & 0x0040) tp->csr6 |= 0x00000200;
-
- /* set bit 24 for nway negotiation mode ...
- * see Data Port Selection comment at top of file
- * and "Stop" - reset both Transmit (bit 13) and Receive (bit 1)
- */
- tp->csr6 |= 0x01000000;
- iowrite32(csr14, ioaddr + CSR14);
- iowrite32(tp->csr6, ioaddr + CSR6);
- udelay(100);
-
- /* all set up so now force the negotiation to begin */
-
- /* read in current values and mask off all but the
- * Autonegotiation bits 14:12. Writing a 001 to those bits
- * should start the autonegotiation
- */
- csr12 = (ioread32(ioaddr + CSR12) & 0xffff8fff);
- csr12 |= 0x1000;
- iowrite32(csr12, ioaddr + CSR12);
-}
-
-
-
-void pnic2_lnk_change(struct net_device *dev, int csr5)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- int csr14;
-
- /* read the staus register to find out what is up */
- int csr12 = ioread32(ioaddr + CSR12);
-
- if (tulip_debug > 1)
- dev_info(&dev->dev,
- "PNIC2 link status interrupt %08x, CSR5 %x, %08x\n",
- csr12, csr5, ioread32(ioaddr + CSR14));
-
- /* If NWay finished and we have a negotiated partner capability.
- * check bits 14:12 for bit pattern 101 - all is good
- */
- if (tp->nway && !tp->nwayset) {
-
- /* we did an auto negotiation */
-
- if ((csr12 & 0x7000) == 0x5000) {
-
- /* negotiation ended successfully */
-
- /* get the link partners reply and mask out all but
- * bits 24-21 which show the partners capabilities
- * and match those to what we advertised
- *
- * then begin to interpret the results of the negotiation.
- * Always go in this order : (we are ignoring T4 for now)
- * 100baseTx-FD, 100baseTx-HD, 10baseT-FD, 10baseT-HD
- */
-
- int negotiated = ((csr12 >> 16) & 0x01E0) & tp->sym_advertise;
- tp->lpar = (csr12 >> 16);
- tp->nwayset = 1;
-
- 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 {
- if (tulip_debug > 1)
- dev_info(&dev->dev,
- "funny autonegotiate result csr12 %08x advertising %04x\n",
- csr12, tp->sym_advertise);
- tp->nwayset = 0;
- /* so check if 100baseTx link state is okay */
- if ((csr12 & 2) == 0 && (tp->sym_advertise & 0x0180))
- dev->if_port = 3;
- }
-
- /* now record the duplex that was negotiated */
- tp->full_duplex = 0;
- if ((dev->if_port == 4) || (dev->if_port == 5))
- tp->full_duplex = 1;
-
- 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);
- }
-
- /* remember to turn off bit 7 - autonegotiate
- * enable so we can properly end nway mode and
- * set duplex (ie. use csr6<9> again)
- */
- csr14 = (ioread32(ioaddr + CSR14) & 0xffffff7f);
- iowrite32(csr14,ioaddr + CSR14);
-
-
- /* now set the data port and operating mode
- * (see the Data Port Selection comments at
- * the top of the file
- */
-
- /* get current csr6 and mask off bits not to touch */
- /* see comment at top of file */
-
- tp->csr6 = (ioread32(ioaddr + CSR6) & 0xfe3bd1fd);
-
- /* so if using if_port 3 or 5 then select the 100baseT
- * port else select the 10baseT port.
- * See the Data Port Selection table at the top
- * of the file which was taken from the PNIC_II.PDF
- * datasheet
- */
- if (dev->if_port & 1) tp->csr6 |= 0x01840000;
- else tp->csr6 |= 0x00400000;
-
- /* now set the full duplex bit appropriately */
- if (tp->full_duplex) tp->csr6 |= 0x00000200;
-
- iowrite32(1, ioaddr + CSR13);
-
- if (tulip_debug > 2)
- netdev_dbg(dev, "Setting CSR6 %08x/%x CSR12 %08x\n",
- tp->csr6,
- ioread32(ioaddr + CSR6),
- ioread32(ioaddr + CSR12));
-
- /* now the following actually writes out the
- * new csr6 values
- */
- tulip_start_rxtx(tp);
-
- return;
-
- } else {
- dev_info(&dev->dev,
- "Autonegotiation failed, using %s, link beat status %04x\n",
- medianame[dev->if_port], csr12);
-
- /* remember to turn off bit 7 - autonegotiate
- * enable so we don't forget
- */
- csr14 = (ioread32(ioaddr + CSR14) & 0xffffff7f);
- iowrite32(csr14,ioaddr + CSR14);
-
- /* what should we do when autonegotiate fails?
- * should we try again or default to baseline
- * case. I just don't know.
- *
- * for now default to some baseline case
- */
-
- dev->if_port = 0;
- tp->nway = 0;
- tp->nwayset = 1;
-
- /* set to 10baseTx-HD - see Data Port Selection
- * comment given at the top of the file
- */
- tp->csr6 = (ioread32(ioaddr + CSR6) & 0xfe3bd1fd);
- tp->csr6 |= 0x00400000;
-
- tulip_restart_rxtx(tp);
-
- return;
-
- }
- }
-
- 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. */
-
- if (tulip_debug > 2)
- netdev_dbg(dev, "Ugh! Link blew?\n");
-
- del_timer_sync(&tp->timer);
- pnic2_start_nway(dev);
- tp->timer.expires = RUN_AT(3*HZ);
- add_timer(&tp->timer);
-
- return;
- }
-
-
- if (dev->if_port == 3 || dev->if_port == 5) {
-
- /* we are at 100mb and a potential link change occurred */
-
- if (tulip_debug > 1)
- dev_info(&dev->dev, "PNIC2 %s link beat %s\n",
- medianame[dev->if_port],
- (csr12 & 2) ? "failed" : "good");
-
- /* check 100 link beat */
-
- tp->nway = 0;
- tp->nwayset = 1;
-
- /* if failed then try doing an nway to get in sync */
- if ((csr12 & 2) && ! tp->medialock) {
- del_timer_sync(&tp->timer);
- pnic2_start_nway(dev);
- tp->timer.expires = RUN_AT(3*HZ);
- add_timer(&tp->timer);
- }
-
- return;
- }
-
- if (dev->if_port == 0 || dev->if_port == 4) {
-
- /* we are at 10mb and a potential link change occurred */
-
- if (tulip_debug > 1)
- dev_info(&dev->dev, "PNIC2 %s link beat %s\n",
- medianame[dev->if_port],
- (csr12 & 4) ? "failed" : "good");
-
-
- tp->nway = 0;
- tp->nwayset = 1;
-
- /* if failed, try doing an nway to get in sync */
- if ((csr12 & 4) && ! tp->medialock) {
- del_timer_sync(&tp->timer);
- pnic2_start_nway(dev);
- tp->timer.expires = RUN_AT(3*HZ);
- add_timer(&tp->timer);
- }
-
- return;
- }
-
-
- if (tulip_debug > 1)
- dev_info(&dev->dev, "PNIC2 Link Change Default?\n");
-
- /* if all else fails default to trying 10baseT-HD */
- dev->if_port = 0;
-
- /* make sure autonegotiate enable is off */
- csr14 = (ioread32(ioaddr + CSR14) & 0xffffff7f);
- iowrite32(csr14,ioaddr + CSR14);
-
- /* set to 10baseTx-HD - see Data Port Selection
- * comment given at the top of the file
- */
- tp->csr6 = (ioread32(ioaddr + CSR6) & 0xfe3bd1fd);
- tp->csr6 |= 0x00400000;
-
- tulip_restart_rxtx(tp);
-}
-
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