From 4adccf6f447dfa7af6f3af7e12f87829a6fac8dd Mon Sep 17 00:00:00 2001 From: Uwe Koziolek Date: Wed, 8 Nov 2006 09:57:00 +0100 Subject: [PATCH] [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: Uwe Koziolek Signed-off-by: Jeff Garzik --- drivers/ata/sata_sis.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c index 9d1235ba06..9c25a1e917 100644 --- a/drivers/ata/sata_sis.c +++ b/drivers/ata/sata_sis.c @@ -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; } -- 2.39.5