Commit 4adccf6f authored by Uwe Koziolek's avatar Uwe Koziolek Committed by Jeff Garzik
Browse files

[PATCH] sata_sis: slave support on SiS965 



SiS965 and SiS180 chips must support slave mode,
SiS965L and SiS964 chips must not support slave mode.

SCR_STATUS for SATA ports in powerdown state fixed.
Now returning 0x0113 instead of 0x0117. Avoids problem
on detecting sata_sis controller.

Signed-off-by: default avatarUwe Koziolek <uwe.koziolek@gmx.net>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 98fa4b60

drivers/ata/sata_sis.c

+12 −5
Original line number Diff line number Diff line
@@ -173,7 +173,7 @@ static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg) 
	if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))

		pci_read_config_dword(pdev, cfg_addr+0x10, &val2);



	return val|val2;

	return (val|val2) &  0xfffffffb; /* avoid problems with powerdowned ports */

}



static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
@@ -212,7 +212,7 @@ static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg) 
	if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))

		val2 = inl(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10);



	return val | val2;

	return (val | val2) &  0xfffffffb;

}



static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
@@ -239,7 +239,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) 
	static int printed_version;

	struct ata_probe_ent *probe_ent = NULL;

	int rc;

	u32 genctl;

	u32 genctl, val;

	struct ata_port_info pi = sis_port_info, *ppi[2] = { &pi, &pi };

	int pci_dev_busy = 0;

	u8 pmr;
@@ -285,17 +285,24 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) 
	if (ent->device != 0x182) {

		if ((pmr & SIS_PMR_COMBINED) == 0) {

			dev_printk(KERN_INFO, &pdev->dev,

				   "Detected SiS 180/181 chipset in SATA mode\n");

				   "Detected SiS 180/181/964 chipset in SATA mode\n");

			port2_start = 64;

		}

		else {

			dev_printk(KERN_INFO, &pdev->dev,

				   "Detected SiS 180/181 chipset in combined mode\n");

			port2_start=0;

			pi.flags |= ATA_FLAG_SLAVE_POSS;

		}

	}

	else {

		dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182 chipset\n");

		pci_read_config_dword ( pdev, 0x6C, &val);

		if (val & (1L << 31)) {

			dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965 chipset\n");

			pi.flags |= ATA_FLAG_SLAVE_POSS;

		}

		else

			dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965L chipset\n");

		port2_start = 0x20;

	}

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