Messages in this thread Patch in this message | | | From | Roger Quadros <> | Subject | [PATCH] ata: ahci_platform: add 32-bit quirk for dwc-ahci | Date | Thu, 6 Feb 2020 13:17:28 +0200 |
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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
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