[PATCH v1] ahci_xgene: Fix the dma state machine lockup for the ATA_CMD_SMART PIO mode command.

This patch addresses the issue with ATA_CMD_SMART pio mode command for enumeration and device detection with ATA devices. The X-Gene AHCI controller has an errata in which it cannot clear the BSY bit after the PIO setup FIS. The dma state machine enters CMFatalErrorUpdate state and locks up. It is

Re: [PATCH v1] ahci_xgene: Fix the dma state machine lockup for the ATA_CMD_SMART PIO mode command.

Hello. On 2/2/2015 1:18 PM, Suman Tripathi wrote: This patch addresses the issue with ATA_CMD_SMART pio mode command for enumeration and device detection with ATA devices. The X-Gene AHCI controller has an errata in which it cannot clear the BSY bit after the PIO setup FIS. The dma state