diff options
Diffstat (limited to 'drivers/scsi/sata_sis.c')
| -rw-r--r-- | drivers/scsi/sata_sis.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/scsi/sata_sis.c b/drivers/scsi/sata_sis.c index 2bd3f11ac010..a63f93186e41 100644 --- a/drivers/scsi/sata_sis.c +++ b/drivers/scsi/sata_sis.c @@ -55,7 +55,7 @@ enum { SIS180_SATA1_OFS = 0x10, /* offset from sata0->sata1 phy regs */ SIS182_SATA1_OFS = 0x20, /* offset from sata0->sata1 phy regs */ SIS_PMR = 0x90, /* port mapping register */ - SIS_PMR_COMBINED = 0x30, + SIS_PMR_COMBINED = 0x30, /* random bits */ SIS_FLAG_CFGSCR = (1 << 30), /* host flag: SCRs via PCI cfg */ @@ -147,11 +147,13 @@ static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg, { unsigned int addr = SIS_SCR_BASE + (4 * sc_reg); - if (port_no) + if (port_no) { if (device == 0x182) addr += SIS182_SATA1_OFS; else addr += SIS180_SATA1_OFS; + } + return addr; } @@ -166,10 +168,10 @@ static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg) return 0xffffffff; pci_read_config_byte(pdev, SIS_PMR, &pmr); - + pci_read_config_dword(pdev, cfg_addr, &val); - if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) + if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) pci_read_config_dword(pdev, cfg_addr+0x10, &val2); return val|val2; @@ -185,7 +187,7 @@ static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val) return; pci_read_config_byte(pdev, SIS_PMR, &pmr); - + pci_write_config_dword(pdev, cfg_addr, val); if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) @@ -195,7 +197,7 @@ static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val) static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg) { struct pci_dev *pdev = to_pci_dev(ap->host_set->dev); - u32 val,val2; + u32 val, val2 = 0; u8 pmr; if (sc_reg > SCR_CONTROL) @@ -209,9 +211,9 @@ static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg) val = inl(ap->ioaddr.scr_addr + (sc_reg * 4)); if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED)) - val2 = inl(ap->ioaddr.scr_addr + (sc_reg * 4)+0x10); + val2 = inl(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10); - return val|val2; + return val | val2; } static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) @@ -223,7 +225,7 @@ static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) return; pci_read_config_byte(pdev, SIS_PMR, &pmr); - + if (ap->flags & SIS_FLAG_CFGSCR) sis_scr_cfg_write(ap, sc_reg, val); else { |
