diff -ruN linux-2.4.20-orig/drivers/ide/Config.in linux-2.4.20/drivers/ide/Config.in
--- linux-2.4.20-orig/drivers/ide/Config.in	2002-11-28 18:53:13.000000000 -0500
+++ linux-2.4.20/drivers/ide/Config.in	2003-01-21 23:09:22.000000000 -0500
@@ -83,7 +83,7 @@
 	    dep_bool '    NS87415 chipset support (EXPERIMENTAL)' CONFIG_BLK_DEV_NS87415 $CONFIG_BLK_DEV_IDEDMA_PCI $CONFIG_EXPERIMENTAL
 	    dep_bool '    OPTi 82C621 chipset enhanced support (EXPERIMENTAL)' CONFIG_BLK_DEV_OPTI621 $CONFIG_EXPERIMENTAL
 #	    dep_mbool '   Pacific Digital A-DMA support (EXPERIMENTAL)' CONFIG_BLK_DEV_PDC_ADMA $CONFIG_BLK_DEV_ADMA $CONFIG_IDEDMA_PCI_WIP $CONFIG_EXPERIMENTAL
-	    dep_bool '    PROMISE PDC202{46|62|65|67|68|69|70} support' CONFIG_BLK_DEV_PDC202XX $CONFIG_BLK_DEV_IDEDMA_PCI
+	    dep_bool '    PROMISE PDC202{46|62|65|67|68|69|70|71} support' CONFIG_BLK_DEV_PDC202XX $CONFIG_BLK_DEV_IDEDMA_PCI
 	    dep_bool '      Special UDMA Feature' CONFIG_PDC202XX_BURST $CONFIG_BLK_DEV_PDC202XX
 	    dep_bool '      Special FastTrak Feature' CONFIG_PDC202XX_FORCE $CONFIG_BLK_DEV_PDC202XX
 	    dep_bool '    ServerWorks OSB4/CSB5 chipsets support' CONFIG_BLK_DEV_SVWKS $CONFIG_BLK_DEV_IDEDMA_PCI $CONFIG_X86
diff -ruN linux-2.4.20-orig/drivers/ide/ide-pci.c linux-2.4.20/drivers/ide/ide-pci.c
--- linux-2.4.20-orig/drivers/ide/ide-pci.c	2002-11-28 18:53:13.000000000 -0500
+++ linux-2.4.20/drivers/ide/ide-pci.c	2003-01-21 23:09:22.000000000 -0500
@@ -50,6 +50,7 @@
 #define DEVID_PDC20267	((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20267})
 #define DEVID_PDC20268  ((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268})
 #define DEVID_PDC20270  ((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270})
+#define DEVID_PDC20271  ((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271})
 #define DEVID_PDC20269	((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269})
 #define DEVID_PDC20275	((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275})
 #define DEVID_PDC20276	((ide_pci_devid_t){PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276})
@@ -407,11 +408,13 @@
         {DEVID_PDC20262,"PDC20262",	PCI_PDC202XX,	ATA66_PDC202XX,	INIT_PDC202XX,	NULL,		{{0x00,0x00,0x00}, {0x00,0x00,0x00}},	OFF_BOARD,	48 },
         {DEVID_PDC20265,"PDC20265",	PCI_PDC202XX,	ATA66_PDC202XX,	INIT_PDC202XX,	NULL,		{{0x00,0x00,0x00}, {0x00,0x00,0x00}},	OFF_BOARD,	48 },
         {DEVID_PDC20267,"PDC20267",	PCI_PDC202XX,	ATA66_PDC202XX,	INIT_PDC202XX,	NULL,		{{0x00,0x00,0x00}, {0x00,0x00,0x00}},	OFF_BOARD,	48 },
+	{DEVID_PDC20271,"PDC20271",	PCI_PDC202XX,	ATA66_PDC202XX,	INIT_PDC202XX,	NULL,		{{0x00,0x00,0x00}, {0x00,0x00,0x00}},	OFF_BOARD,	48 },
 #else /* !CONFIG_PDC202XX_FORCE */
 	{DEVID_PDC20246,"PDC20246",	PCI_PDC202XX,	NULL,		INIT_PDC202XX,	NULL,		{{0x50,0x02,0x02}, {0x50,0x04,0x04}}, 	OFF_BOARD,	16 },
 	{DEVID_PDC20262,"PDC20262",	PCI_PDC202XX,	ATA66_PDC202XX,	INIT_PDC202XX,	NULL,		{{0x50,0x02,0x02}, {0x50,0x04,0x04}},	OFF_BOARD,	48 },
 	{DEVID_PDC20265,"PDC20265",	PCI_PDC202XX,	ATA66_PDC202XX,	INIT_PDC202XX,	NULL,		{{0x50,0x02,0x02}, {0x50,0x04,0x04}},	OFF_BOARD,	48 },
 	{DEVID_PDC20267,"PDC20267",	PCI_PDC202XX,	ATA66_PDC202XX,	INIT_PDC202XX,	NULL,		{{0x50,0x02,0x02}, {0x50,0x04,0x04}},	OFF_BOARD,	48 },
+	{DEVID_PDC20271,"PDC20271",	PCI_PDC202XX,	ATA66_PDC202XX,	INIT_PDC202XX,	NULL,		{{0x50,0x02,0x02}, {0x50,0x04,0x04}},	OFF_BOARD,	48 },
 #endif
 	{DEVID_PDC20268,"PDC20268",	PCI_PDC202XX,	ATA66_PDC202XX,	INIT_PDC202XX,	NULL,		{{0x00,0x00,0x00}, {0x00,0x00,0x00}},	OFF_BOARD,	0 },
 	/* Promise used a different PCI ident for the raid card apparently to try and
@@ -480,6 +483,7 @@
 		case PCI_DEVICE_ID_PROMISE_20267:
 		case PCI_DEVICE_ID_PROMISE_20268:
 		case PCI_DEVICE_ID_PROMISE_20270:
+		case PCI_DEVICE_ID_PROMISE_20271:
 		case PCI_DEVICE_ID_PROMISE_20269:
 		case PCI_DEVICE_ID_PROMISE_20275:
 		case PCI_DEVICE_ID_PROMISE_20276:
@@ -817,6 +821,7 @@
 		    IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20268) ||
 		    IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20270) ||
 		    IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20269) ||
+		    IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20271) ||
 		    IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20275) ||
 		    IDE_PCI_DEVID_EQ(d->devid, DEVID_PDC20276) ||
 		    IDE_PCI_DEVID_EQ(d->devid, DEVID_AEC6210) ||
diff -ruN linux-2.4.20-orig/drivers/ide/pdc202xx.c linux-2.4.20/drivers/ide/pdc202xx.c
--- linux-2.4.20-orig/drivers/ide/pdc202xx.c	2002-08-02 20:39:44.000000000 -0400
+++ linux-2.4.20/drivers/ide/pdc202xx.c	2003-01-21 23:09:22.000000000 -0500
@@ -130,6 +130,9 @@
 		case PCI_DEVICE_ID_PROMISE_20275:
 			p += sprintf(p, "MBUltra133\n");
 			break;
+		case PCI_DEVICE_ID_PROMISE_20271:
+			p += sprintf(p, "Ultra133 TX2000\n");
+			break;
 		case PCI_DEVICE_ID_PROMISE_20269:
 			p += sprintf(p, "Ultra133 TX2\n");
 			break;
@@ -714,6 +717,15 @@
 			cable = ((IN_BYTE((hwif->dma_base + 3)) & 0x04));
 			new_chip = 1;
 			break;
+		case PCI_DEVICE_ID_PROMISE_20271:
+/* Note: I'm not sure what the specs should be on this. maybe blank? */
+//			udma_133 = (udma_66) ? 1 : 0;
+//			udma_100 = (udma_66) ? 1 : 0;
+//			OUT_BYTE(0x0b, (hwif->dma_base + 1));
+//			cable = ((IN_BYTE((hwif->dma_base + 3)) & 0x04));
+//			new_chip = 1;
+//			break;
+/* Note: End of uncertainty. */
 		case PCI_DEVICE_ID_PROMISE_20267:
 		case PCI_DEVICE_ID_PROMISE_20265:
 			udma_100 = (udma_66) ? 1 : 0;
@@ -947,6 +959,7 @@
 	switch (dev->device) {
 		case PCI_DEVICE_ID_PROMISE_20276:
 		case PCI_DEVICE_ID_PROMISE_20275:
+		case PCI_DEVICE_ID_PROMISE_20271:
 		case PCI_DEVICE_ID_PROMISE_20269:
 		case PCI_DEVICE_ID_PROMISE_20268:
 		case PCI_DEVICE_ID_PROMISE_20270:
@@ -1125,6 +1138,7 @@
         	switch(hwif->pci_dev->device) {
 		case PCI_DEVICE_ID_PROMISE_20276:
 		case PCI_DEVICE_ID_PROMISE_20275:
+		case PCI_DEVICE_ID_PROMISE_20271:
 		case PCI_DEVICE_ID_PROMISE_20269:
 		case PCI_DEVICE_ID_PROMISE_20268:
 		case PCI_DEVICE_ID_PROMISE_20270:
@@ -1147,6 +1161,7 @@
         switch(hwif->pci_dev->device) {
 		case PCI_DEVICE_ID_PROMISE_20276:
 		case PCI_DEVICE_ID_PROMISE_20275:
+		case PCI_DEVICE_ID_PROMISE_20271:
 		case PCI_DEVICE_ID_PROMISE_20269:
 		case PCI_DEVICE_ID_PROMISE_20268:
 		case PCI_DEVICE_ID_PROMISE_20270: