329 static void ep93xx_pata_set_piomode(struct ata_port *ap,  in ep93xx_pata_set_piomode()  argument
332 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_set_piomode()
357 static u8 ep93xx_pata_check_status(struct ata_port *ap)  in ep93xx_pata_check_status()  argument
359 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_check_status()
364 static u8 ep93xx_pata_check_altstatus(struct ata_port *ap)  in ep93xx_pata_check_altstatus()  argument
366 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_check_altstatus()
372 static void ep93xx_pata_tf_load(struct ata_port *ap,  in ep93xx_pata_tf_load()  argument
375 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_tf_load()
378 	if (tf->ctl != ap->last_ctl) {  in ep93xx_pata_tf_load()
380 		ap->last_ctl = tf->ctl;  in ep93xx_pata_tf_load()
381 		ata_wait_idle(ap);  in ep93xx_pata_tf_load()
410 	ata_wait_idle(ap);  in ep93xx_pata_tf_load()
414 static void ep93xx_pata_tf_read(struct ata_port *ap, struct ata_taskfile *tf)  in ep93xx_pata_tf_read()  argument
416 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_tf_read()
418 	tf->command = ep93xx_pata_check_status(ap);  in ep93xx_pata_tf_read()
440 		ap->last_ctl = tf->ctl;  in ep93xx_pata_tf_read()
445 static void ep93xx_pata_exec_command(struct ata_port *ap,  in ep93xx_pata_exec_command()  argument
448 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_exec_command()
452 	ata_sff_pause(ap);  in ep93xx_pata_exec_command()
456 static void ep93xx_pata_dev_select(struct ata_port *ap, unsigned int device)  in ep93xx_pata_dev_select()  argument
458 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_dev_select()
465 	ata_sff_pause(ap);	/* needed; also flushes, for mmio */  in ep93xx_pata_dev_select()
469 static void ep93xx_pata_set_devctl(struct ata_port *ap, u8 ctl)  in ep93xx_pata_set_devctl()  argument
471 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_set_devctl()
481 	struct ata_port *ap = adev->link->ap;  in ep93xx_pata_data_xfer()  local
482 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_data_xfer()
519 static bool ep93xx_pata_device_is_present(struct ata_port *ap,  in ep93xx_pata_device_is_present()  argument
522 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_device_is_present()
525 	ap->ops->sff_dev_select(ap, device);  in ep93xx_pata_device_is_present()
550 	struct ata_port *ap = link->ap;  in ep93xx_pata_wait_after_reset()  local
551 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_wait_after_reset()
556 	ata_msleep(ap, ATA_WAIT_AFTER_RESET);  in ep93xx_pata_wait_after_reset()
574 		ap->ops->sff_dev_select(ap, 1);  in ep93xx_pata_wait_after_reset()
601 	ap->ops->sff_dev_select(ap, 0);  in ep93xx_pata_wait_after_reset()
603 		ap->ops->sff_dev_select(ap, 1);  in ep93xx_pata_wait_after_reset()
605 		ap->ops->sff_dev_select(ap, 0);  in ep93xx_pata_wait_after_reset()
611 static int ep93xx_pata_bus_softreset(struct ata_port *ap, unsigned int devmask,  in ep93xx_pata_bus_softreset()  argument
614 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_bus_softreset()
616 	ep93xx_pata_write_reg(drv_data, ap->ctl, IDECTRL_ADDR_CTL);  in ep93xx_pata_bus_softreset()
618 	ep93xx_pata_write_reg(drv_data, ap->ctl | ATA_SRST, IDECTRL_ADDR_CTL);  in ep93xx_pata_bus_softreset()
620 	ep93xx_pata_write_reg(drv_data, ap->ctl, IDECTRL_ADDR_CTL);  in ep93xx_pata_bus_softreset()
621 	ap->last_ctl = ap->ctl;  in ep93xx_pata_bus_softreset()
623 	return ep93xx_pata_wait_after_reset(&ap->link, devmask, deadline);  in ep93xx_pata_bus_softreset()
704 	struct ep93xx_pata_data *drv_data = qc->ap->host->private_data;  in ep93xx_pata_dma_start()
714 		dev_err(qc->ap->dev, "failed to prepare slave for sg dma\n");  in ep93xx_pata_dma_start()
721 		dev_err(qc->ap->dev, "failed to submit dma transfer\n");  in ep93xx_pata_dma_start()
744 	struct ep93xx_pata_data *drv_data = qc->ap->host->private_data;  in ep93xx_pata_dma_stop()
762 	ata_sff_dma_pause(qc->ap);  in ep93xx_pata_dma_stop()
767 	qc->ap->ops->sff_exec_command(qc->ap, &qc->tf);  in ep93xx_pata_dma_setup()
770 static u8 ep93xx_pata_dma_status(struct ata_port *ap)  in ep93xx_pata_dma_status()  argument
772 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_dma_status()
806 	struct ata_port *ap = al->ap;  in ep93xx_pata_softreset()  local
807 	unsigned int slave_possible = ap->flags & ATA_FLAG_SLAVE_POSS;  in ep93xx_pata_softreset()
813 	if (ep93xx_pata_device_is_present(ap, 0))  in ep93xx_pata_softreset()
815 	if (slave_possible && ep93xx_pata_device_is_present(ap, 1))  in ep93xx_pata_softreset()
819 	ap->ops->sff_dev_select(al->ap, 0);  in ep93xx_pata_softreset()
822 	rc = ep93xx_pata_bus_softreset(ap, devmask, deadline);  in ep93xx_pata_softreset()
843 	struct ata_port *ap;  in ep93xx_pata_drain_fifo()  local
850 	ap = qc->ap;  in ep93xx_pata_drain_fifo()
851 	drv_data = ap->host->private_data;  in ep93xx_pata_drain_fifo()
853 	for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)  in ep93xx_pata_drain_fifo()
859 		ata_port_dbg(ap, "drained %d bytes to clear DRQ.\n", count);  in ep93xx_pata_drain_fifo()
863 static int ep93xx_pata_port_start(struct ata_port *ap)  in ep93xx_pata_port_start()  argument
865 	struct ep93xx_pata_data *drv_data = ap->host->private_data;  in ep93xx_pata_port_start()
917 	struct ata_port *ap;  in ep93xx_pata_probe()  local
965 	ap = host->ports[0];  in ep93xx_pata_probe()
966 	ap->dev = &pdev->dev;  in ep93xx_pata_probe()
967 	ap->ops = &ep93xx_pata_port_ops;  in ep93xx_pata_probe()
968 	ap->flags |= ATA_FLAG_SLAVE_POSS;  in ep93xx_pata_probe()
969 	ap->pio_mask = ATA_PIO4;  in ep93xx_pata_probe()
984 			ap->udma_mask = ATA_UDMA3;  in ep93xx_pata_probe()
986 			ap->udma_mask = ATA_UDMA4;  in ep93xx_pata_probe()
988 			ap->udma_mask = ATA_UDMA2;  in ep93xx_pata_probe()