diff options
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libahci_platform.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c index 3a5b4ed25a4f..a958a2b8fd93 100644 --- a/drivers/ata/libahci_platform.c +++ b/drivers/ata/libahci_platform.c @@ -364,6 +364,19 @@ int ahci_platform_init_host(struct platform_device *pdev, ap->ops = &ata_dummy_port_ops; } + if (hpriv->cap & HOST_CAP_64) { + rc = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); + if (rc) { + rc = dma_coerce_mask_and_coherent(dev, + DMA_BIT_MASK(32)); + if (rc) { + dev_err(dev, "Failed to enable 64-bit DMA.\n"); + return rc; + } + dev_warn(dev, "Enable 32-bit DMA instead of 64-bit.\n"); + } + } + rc = ahci_reset_controller(host); if (rc) return rc; |