diff options
Diffstat (limited to 'drivers/ata/pata_sc1200.c')
| -rw-r--r-- | drivers/ata/pata_sc1200.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c index 9b42b9a52423..4166c1a8a9e8 100644 --- a/drivers/ata/pata_sc1200.c +++ b/drivers/ata/pata_sc1200.c @@ -27,7 +27,7 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * + * */ #include <linux/kernel.h> @@ -54,14 +54,14 @@ * Return the PCI bus clocking for the SC1200 chipset configuration * in use. We return 0 for 33MHz 1 for 48MHz and 2 for 66Mhz */ - + static int sc1200_clock(void) { /* Magic registers that give us the chipset data */ u8 chip_id = inb(0x903C); u8 silicon_rev = inb(0x903D); u16 pci_clock; - + if (chip_id == 0x04 && silicon_rev < SC1200_REV_B1) return 0; /* 33 MHz mode */ @@ -83,7 +83,7 @@ static int sc1200_clock(void) * * Set our PIO requirements. This is fairly simple on the SC1200 */ - + static void sc1200_set_piomode(struct ata_port *ap, struct ata_device *adev) { static const u32 pio_timings[4][5] = { @@ -97,11 +97,11 @@ static void sc1200_set_piomode(struct ata_port *ap, struct ata_device *adev) u32 format; unsigned int reg = 0x40 + 0x10 * ap->port_no; int mode = adev->pio_mode - XFER_PIO_0; - + pci_read_config_dword(pdev, reg + 4, &format); format >>= 31; format += sc1200_clock(); - pci_write_config_dword(pdev, reg + 8 * adev->devno, + pci_write_config_dword(pdev, reg + 8 * adev->devno, pio_timings[format][mode]); } @@ -113,7 +113,7 @@ static void sc1200_set_piomode(struct ata_port *ap, struct ata_device *adev) * We cannot mix MWDMA and UDMA without reloading timings each switch * master to slave. */ - + static void sc1200_set_dmamode(struct ata_port *ap, struct ata_device *adev) { static const u32 udma_timing[3][3] = { @@ -121,13 +121,13 @@ static void sc1200_set_dmamode(struct ata_port *ap, struct ata_device *adev) { 0x00932470, 0x00922260, 0x00922140 }, { 0x009436A1, 0x00933481, 0x00923261 } }; - + static const u32 mwdma_timing[3][3] = { { 0x00077771, 0x00012121, 0x00002020 }, { 0x000BBBB2, 0x00024241, 0x00013131 }, { 0x000FFFF3, 0x00035352, 0x00015151 } }; - + int clock = sc1200_clock(); struct pci_dev *pdev = to_pci_dev(ap->host->dev); unsigned int reg = 0x40 + 0x10 * ap->port_no; @@ -138,10 +138,10 @@ static void sc1200_set_dmamode(struct ata_port *ap, struct ata_device *adev) format = udma_timing[clock][mode - XFER_UDMA_0]; else format = mwdma_timing[clock][mode - XFER_MW_DMA_0]; - + if (adev->devno == 0) { u32 timings; - + pci_read_config_dword(pdev, reg + 4, &timings); timings &= 0x80000000UL; timings |= format; @@ -201,7 +201,7 @@ static struct ata_port_operations sc1200_port_ops = { .set_piomode = sc1200_set_piomode, .set_dmamode = sc1200_set_dmamode, .mode_filter = ata_pci_default_filter, - + .tf_load = ata_tf_load, .tf_read = ata_tf_read, .check_status = ata_check_status, @@ -226,7 +226,7 @@ static struct ata_port_operations sc1200_port_ops = { .port_start = ata_port_start, .port_stop = ata_port_stop, .host_stop = ata_host_stop -}; +}; /** * sc1200_init_one - Initialise an SC1200 @@ -236,7 +236,7 @@ static struct ata_port_operations sc1200_port_ops = { * Just throw the needed data at the libata helper and it does all * our work. */ - + static int sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id) { static struct ata_port_info info = { @@ -248,7 +248,7 @@ static int sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id) .port_ops = &sc1200_port_ops }; static struct ata_port_info *port_info[2] = { &info, &info }; - + /* Can't enable port 2 yet, see top comments */ return ata_pci_init_one(dev, port_info, 1); } |