diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 32cfaa89dc7ce2462d7c4a4f7915c2c4a6ff6cb6..ca53d5a9c0c571022097b6fdcea886b007e19f99 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1685,13 +1685,9 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	/* JMicron-specific fixup: make sure we're in AHCI mode */
-	/* This is protected from races with ata_jmicron by the pci probe
-	   locking */
 	if (pdev->vendor == PCI_VENDOR_ID_JMICRON) {
-		/* AHCI enable, AHCI on function 0 */
-		pci_write_config_byte(pdev, 0x41, 0xa1);
-		/* Function 1 is the PATA controller */
+		/* Function 1 is the PATA controller except on the 368, where
+		   we are not AHCI anyway */
 		if (PCI_FUNC(pdev->devfn))
 			return -ENODEV;
 	}