linux-kernel - [PATCH 3.7.0] Add AHCI support for Enmotus Bobcat device.

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Message-Id: <1355513391-29458-1-git-send-email-hugh.daschbach@enmotus.com>
Date:	Fri, 14 Dec 2012 11:29:51 -0800
From:	Hugh Daschbach <hugh.daschbach@...otus.com>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Hugh Daschbach <hugh.daschbach@...otus.com>
Subject: [PATCH 3.7.0] Add AHCI support for Enmotus Bobcat device.

Silicon does not support standard AHCI BAR assignment.  Add
vendor/device exception to force BAR 2.

Signed-off-by: Hugh Daschbach <hugh.daschbach@...otus.com>
---
 drivers/ata/ahci.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 7862d17..3cb008f 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -53,6 +53,7 @@
 
 enum {
 	AHCI_PCI_BAR_STA2X11	= 0,
+	AHCI_PCI_BAR_ENMOTUS	= 2,
 	AHCI_PCI_BAR_STANDARD	= 5,
 };
 
@@ -410,6 +411,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
 
+	/* Enmotus */
+	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
+
 	/* Generic, PCI class code for AHCI */
 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
@@ -1101,6 +1105,8 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* The Connext uses non-standard BAR */
 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
+	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
+		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
 
 	/* acquire resources */
 	rc = pcim_enable_device(pdev);
-- 
1.7.11.7

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