--- linux-3.2.0/drivers/ata/ahci.c.orig	2012-08-29 13:40:26.046851693 +0800
+++ linux-3.2.0/drivers/ata/ahci.c	2012-08-30 17:23:10.207838960 +0800
@@ -430,6 +430,9 @@ static int marvell_enable = 1;
 module_param(marvell_enable, int, 0644);
 MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");

+static int promise_enable;
+module_param(promise_enable, int, 0644);
+MODULE_PARM_DESC(promise_enable, "Promise SATA via AHCI (1 = enabled)");

 static void ahci_pci_save_initial_config(struct pci_dev *pdev,
 					 struct ahci_host_priv *hpriv)
@@ -1049,6 +1052,16 @@ static int ahci_init_one(struct pci_dev
 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
 		return -ENODEV;

+        /*
+         * In RAID mode, Promise software RAID need to replace
+         * original AHCI module, but if AHCI driver build-in kernel,
+         * Promise AHCI module need a boot option to disable it
+         */
+        if (promise_enable &&
+            ((pdev->class >> 8) == PCI_CLASS_STORAGE_RAID) &&
+             (pdev->vendor == PCI_VENDOR_ID_ATI ||
+              pdev->vendor == PCI_VENDOR_ID_AMD))
+                return -ENODEV;
+
 	/*
 	 * For some reason, MCP89 on MacBook 7,1 doesn't work with
 	 * ahci, use ata_generic instead.