Patchwork [3.5.y.z,extended,stable] Patch "[libata] ahci: Add support for Enmotus Bobcat device." has been added to staging queue

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Submitter Herton Ronaldo Krzesinski
Date Feb. 4, 2013, 9:46 p.m.
Message ID <1360014369-3439-1-git-send-email-herton.krzesinski@canonical.com>
Download mbox | patch
Permalink /patch/218079/
State New
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Comments

Herton Ronaldo Krzesinski - Feb. 4, 2013, 9:46 p.m.
This is a note to let you know that I have just added a patch titled

    [libata] ahci: Add support for Enmotus Bobcat device.

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Herton

------

From 38f8ed7736123e36537f98f3124be3c6e62eaf53 Mon Sep 17 00:00:00 2001
From: Hugh Daschbach <hugh.daschbach@enmotus.com>
Date: Fri, 4 Jan 2013 14:39:09 -0800
Subject: [PATCH] [libata] ahci: Add support for Enmotus Bobcat device.

commit 7f9c9f8e24590e7dcd26ca408458c43df5b83e61 upstream.

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

Signed-off-by: Hugh Daschbach <hugh.daschbach@enmotus.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
---
 drivers/ata/ahci.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--
1.7.9.5

Patch

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 93cbc44..5d0fb6b 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,
 };

@@ -407,6 +408,9 @@  static const struct pci_device_id ahci_pci_tbl[] = {
 	/* Asmedia */
 	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1061 */

+	/* 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 },
@@ -1079,9 +1083,11 @@  static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		dev_info(&pdev->dev,
 			 "PDC42819 can only drive SATA devices with this driver\n");

-	/* The Connext uses non-standard BAR */
+	/* Both Connext and Enmotus devices use non-standard BARs */
 	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);