lkml.org 
[lkml]   [2020]   [Feb]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] ata: ahci_platform: add 32-bit quirk for dwc-ahci
Date
On TI Platforms using LPAE, SATA breaks with 64-bit DMA.
Restrict it to 32-bit.

Cc: stable@vger.kernel.org
Signed-off-by: Roger Quadros <rogerq@ti.com>
---
drivers/ata/ahci_platform.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 3aab2e3d57f3..b925dc54cfa5 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -62,6 +62,9 @@ static int ahci_probe(struct platform_device *pdev)
if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;

+ if (of_device_is_compatible(dev->of_node, "snps,dwc-ahci"))
+ hpriv->flags |= AHCI_HFLAG_32BIT_ONLY;
+
port = acpi_device_get_match_data(dev);
if (!port)
port = &ahci_port_info;
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
\
 
 \ /
  Last update: 2020-02-06 12:17    [W:0.082 / U:0.960 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site