Patchwork [RESEND,v3.7.0] Add AHCI support for Enmotus Bobcat device.

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Submitter Hugh Daschbach
Date Jan. 3, 2013, 6:35 p.m.
Message ID <1357238107-4630-1-git-send-email-hugh.daschbach@enmotus.com>
Download mbox | patch
Permalink /patch/209297/
State Not Applicable
Delegated to: David Miller
Headers show

Comments

Hugh Daschbach - Jan. 3, 2013, 6:35 p.m.
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>
---
Previously sent 14 Dec 2012.  Any feedback?
Thanks,
Hugh

 drivers/ata/ahci.c | 6 ++++++
 1 file changed, 6 insertions(+)
Sergei Shtylyov - Jan. 3, 2013, 7:51 p.m.
Hello.

On 01/03/2013 09:35 PM, Hugh Daschbach wrote:

> 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>
> ---
> Previously sent 14 Dec 2012.  Any feedback?
> Thanks,
> Hugh

>  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
[...]
> @@ -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 */

   This comment probably needs updating now to include your device.

>  	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);
> 

MBR, Sergei

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Patch

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);