diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-09-27 19:57:54 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-09-27 19:57:54 +0100 |
| commit | 2dc94310bd94d0906febea7d0f7c188da620c952 (patch) | |
| tree | 6de4096f1887e2c00966177354b1c378e59bd632 /drivers/scsi/aic7xxx/aic7xxx_osm.c | |
| parent | c06015148fa9a3cc452ec7121b8c3f59f4a7d6ac (diff) | |
| parent | fb60cf4ab52f3520c2119aa42f7d4ed8e7594eb6 (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/tmlind/linux-omap-upstream into devel
Diffstat (limited to 'drivers/scsi/aic7xxx/aic7xxx_osm.c')
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index aa4be8a31415..64c8b88a429f 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -341,7 +341,7 @@ MODULE_LICENSE("Dual BSD/GPL"); MODULE_VERSION(AIC7XXX_DRIVER_VERSION); module_param(aic7xxx, charp, 0444); MODULE_PARM_DESC(aic7xxx, -"period delimited, options string.\n" +"period-delimited options string:\n" " verbose Enable verbose/diagnostic logging\n" " allow_memio Allow device registers to be memory mapped\n" " debug Bitmask of debug values to enable\n" @@ -2539,15 +2539,28 @@ static void ahc_linux_set_iu(struct scsi_target *starget, int iu) static void ahc_linux_get_signalling(struct Scsi_Host *shost) { struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; - u8 mode = ahc_inb(ahc, SBLKCTL); + unsigned long flags; + u8 mode; - if (mode & ENAB40) - spi_signalling(shost) = SPI_SIGNAL_LVD; - else if (mode & ENAB20) + if (!(ahc->features & AHC_ULTRA2)) { + /* non-LVD chipset, may not have SBLKCTL reg */ spi_signalling(shost) = ahc->features & AHC_HVD ? SPI_SIGNAL_HVD : SPI_SIGNAL_SE; + return; + } + + ahc_lock(ahc, &flags); + ahc_pause(ahc); + mode = ahc_inb(ahc, SBLKCTL); + ahc_unpause(ahc); + ahc_unlock(ahc, &flags); + + if (mode & ENAB40) + spi_signalling(shost) = SPI_SIGNAL_LVD; + else if (mode & ENAB20) + spi_signalling(shost) = SPI_SIGNAL_SE; else spi_signalling(shost) = SPI_SIGNAL_UNKNOWN; } |