commit b1314e3f85b36ce1311d7242085f6dd93709c694
author Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Tue Oct 10 22:37:51 2017 -0700
committer Tejun Heo <tj@kernel.org> Wed Oct 11 07:08:13 2017 -0700
tree aee05713dac6c2b4ebca4ad6bdb9423a758dbe20
parent 03b623fbc5d8d24d45d4e8cd4ba245b0170891f3

ahci: Add support for Cavium's fifth generation SATA controller

This patch adds support for Cavium's fifth generation SATA controller.
It is an on-chip controller and complies with AHCI 1.3.1. As the
controller uses 64-bit addresses it cannot use the standard AHCI BAR5
and so uses BAR4.

Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

drivers/ata/ahci.c

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index cb9b0e9..6e26c1c 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -57,6 +57,7 @@ enum {
 	AHCI_PCI_BAR_STA2X11	= 0,
 	AHCI_PCI_BAR_CAVIUM	= 0,
 	AHCI_PCI_BAR_ENMOTUS	= 2,
+	AHCI_PCI_BAR_CAVIUM_GEN5	= 4,
 	AHCI_PCI_BAR_STANDARD	= 5,
 };
 
@@ -1567,8 +1568,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
 	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
 		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
-	else if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
-		ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
+	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
+		if (pdev->device == 0xa01c)
+			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
+		if (pdev->device == 0xa084)
+			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
+	}
 
 	/* acquire resources */
 	rc = pcim_enable_device(pdev);