--- linux/drivers/ide/alim15x3.c	Sun Jul 15 19:22:23 2001
+++ linux-2.4.18-hack/drivers/ide/alim15x3.c	Fri Mar 22 12:31:28 2002
@@ -574,17 +574,7 @@
 		 * set south-bridge's enable bit, m1533, 0x79
 		 */
 		pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
-		if (m5229_revision == 0xC2) {
-			/*
-			 * 1543C-B0 (m1533, 0x79, bit 2)
-			 */
-			pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
-		} else if (m5229_revision >= 0xC3) {
-			/*
-			 * 1553/1535 (m1533, 0x79, bit 1)
-			 */
-			pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
-		}
+		pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
 		/*
 		 * Ultra66 cable detection (from Host View)
 		 * m5229, 0x4a, bit0: primary, bit1: secondary 80 pin