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Commit d3fb4e8d authored by Jeff Garzik's avatar Jeff Garzik
Browse files

[libata sata_promise] Add PATA cable detection. 

Original patch from Phillip Jordan <phillip.m.jordan@gmail.com>
Cleanups and fixes by me.
parent 4c5c8161

drivers/scsi/sata_promise.c

+15 −4
Original line number Diff line number Diff line
@@ -364,12 +364,23 @@ static void pdc_sata_phy_reset(struct ata_port *ap) 
	sata_phy_reset(ap);

}



static void pdc_pata_phy_reset(struct ata_port *ap)

static void pdc_pata_cbl_detect(struct ata_port *ap)

{

	/* FIXME: add cable detect.  Don't assume 40-pin cable */

	u8 tmp;

	void __iomem *mmio = (void *) ap->ioaddr.cmd_addr + PDC_CTLSTAT + 0x03;



	tmp = readb(mmio);



	if (tmp & 0x01) {

		ap->cbl = ATA_CBL_PATA40;

		ap->udma_mask &= ATA_UDMA_MASK_40C;

	} else

		ap->cbl = ATA_CBL_PATA80;

}



static void pdc_pata_phy_reset(struct ata_port *ap)

{

	pdc_pata_cbl_detect(ap);

	pdc_reset_port(ap);

	ata_port_probe(ap);

	ata_bus_reset(ap);