From 004c679d006b5955f8c30bb6eea99c3d45bf963b Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Tue, 8 Oct 2002 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 2002-10-08

---
 pc/ether2114x.c | 39 +++++++++++++++++++++++++++++++++------
 1 file changed, 33 insertions(+), 6 deletions(-)

diff --git a/pc/ether2114x.c b/pc/ether2114x.c
index bc2d7aa0a5b783b2c14b1ef258203978698cae91..854fcae769518278d608af594cf6bc1b95351963 100644
--- a/pc/ether2114x.c
+++ b/pc/ether2114x.c
@@ -188,6 +188,7 @@ enum {					/* Variants */
 	Tulip3		= (0x0019<<16)|0x1011,
 	Pnic		= (0x0002<<16)|0x11AD,
 	Pnic2		= (0xC115<<16)|0x11AD,
+	CentaurP	= (0x0985<<16)|0x1317,
 };
 
 typedef struct Ctlr Ctlr;
@@ -989,7 +990,7 @@ typephymode(Ctlr* ctlr, uchar* block, int wait)
 	if(!wait)
 		return 0;
 
-	for(timeo = 0; timeo < 30; timeo++){
+	for(timeo = 0; timeo < 45; timeo++){
 		if(typephylink(ctlr, block))
 			return 0;
 		delay(100);
@@ -1361,7 +1362,7 @@ srom(Ctlr* ctlr)
 	}
 
 	/*
-	 * There are 2 SROM layouts:
+	 * There are at least 2 SROM layouts:
 	 *	e.g. Digital EtherWORKS	station address at offset 20;
 	 *				this complies with the 21140A SROM
 	 *				application note from Digital;
@@ -1383,9 +1384,10 @@ srom(Ctlr* ctlr)
 	}
 
 	/*
-	 * Fake up the SROM for the PNIC.
-	 * It looks like a 21140 with a PHY.
-	 * The MAC address is byte-swapped in the orginal SROM data.
+	 * Fake up the SROM for the PNIC and AMDtek.
+	 * They look like a 21140 with a PHY.
+	 * The MAC address is byte-swapped in the orginal
+	 * PNIC SROM data.
 	 */
 	if(ctlr->id == Pnic){
 		memmove(&ctlr->srom[20], leafpnic, sizeof(leafpnic));
@@ -1394,6 +1396,13 @@ srom(Ctlr* ctlr)
 			ctlr->srom[20+i+1] = ctlr->srom[i];
 		}
 	}
+	if(ctlr->id == CentaurP){
+		memmove(&ctlr->srom[20], leafpnic, sizeof(leafpnic));
+		for(i = 0; i < Eaddrlen; i += 2){
+			ctlr->srom[20+i] = ctlr->srom[8+i];
+			ctlr->srom[20+i+1] = ctlr->srom[8+i+1];
+		}
+	}
 
 	/*
 	 * Next, try to find the info leaf in the SROM for media detection.
@@ -1466,8 +1475,11 @@ srom(Ctlr* ctlr)
 	if(phy){
 		x = 0;
 		for(k = 0; k < nelem(ctlr->phy); k++){
+			if(ctlr->id == CentaurP && k != 1)
+				continue;
 			if((oui = miir(ctlr, k, 2)) == -1 || oui == 0)
 				continue;
+debug("phy reg 2 %4.4uX\n", oui);
 			if(DEBUG){
 				oui = (oui & 0x3FF)<<6;
 				oui |= miir(ctlr, k, 3)>>10;
@@ -1510,9 +1522,10 @@ dec2114xpci(void)
 			pcicfgw32(p, 0x40, x);
 			/*FALLTHROUGH*/
 
+		case Tulip0:			/* 21140 */
 		case Pnic:			/* PNIC */
 		case Pnic2:			/* PNIC-II */
-		case Tulip0:			/* 21140 */
+		case CentaurP:			/* ADMtek */
 			break;
 		}
 
@@ -1555,6 +1568,20 @@ dec2114xpci(void)
 			 */
 			csr32w(ctlr, 15, 0x00000001);
 			break;
+		case CentaurP:
+			/*
+			 * Nice - the register offsets change from *8 to *4
+			 * for CSR16 and up...
+			 * CSR25/26 give the MAC address read from the SROM.
+			 * Don't really need to use this other than as a check,
+			 * the SROM will be read in anyway so the value there
+			 * can be used directly.
+			 */
+			debug("csr25 %8.8luX csr26 %8.8luX\n",
+				inl(ctlr->port+0xA4), inl(ctlr->port+0xA8));
+			debug("phyidr1 %4.4luX phyidr2 %4.4luX\n",
+				inl(ctlr->port+0xBC), inl(ctlr->port+0xC0));
+			break;
 		}
 
 		if(ctlrhead != nil)