ahci_platform: add STRICT_AHCI platform type
Some platforms need to make use of the AHCI_HFLAG_DELAY_ENGINE flag. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Cc: stable@kernel.org
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@ -26,6 +26,7 @@
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enum ahci_type {
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AHCI, /* standard platform ahci */
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IMX53_AHCI, /* ahci on i.mx53 */
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STRICT_AHCI, /* delayed DMA engine start */
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};
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static struct platform_device_id ahci_devtype[] = {
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@ -35,6 +36,9 @@ static struct platform_device_id ahci_devtype[] = {
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}, {
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.name = "imx53-ahci",
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.driver_data = IMX53_AHCI,
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}, {
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.name = "strict-ahci",
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.driver_data = STRICT_AHCI,
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}, {
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/* sentinel */
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}
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@ -56,6 +60,13 @@ static const struct ata_port_info ahci_port_info[] = {
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.udma_mask = ATA_UDMA6,
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.port_ops = &ahci_pmp_retry_srst_ops,
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},
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[STRICT_AHCI] = {
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AHCI_HFLAGS (AHCI_HFLAG_DELAY_ENGINE),
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.flags = AHCI_FLAG_COMMON,
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.pio_mask = ATA_PIO4,
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.udma_mask = ATA_UDMA6,
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.port_ops = &ahci_ops,
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},
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};
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static struct scsi_host_template ahci_platform_sht = {
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