diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/g_NCR5380.c | 38 | ||||
| -rw-r--r-- | drivers/scsi/g_NCR5380.h | 3 |
2 files changed, 33 insertions, 8 deletions
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index 53e437744c4f..87060c49693b 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -327,7 +327,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) ports = ncr_53c400a_ports; break; case BOARD_DTC3181E: - flags = FLAG_NO_PSEUDO_DMA; + flags = FLAG_NO_DMA_FIXUP; ports = dtc_3181e_ports; break; } @@ -400,6 +400,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) #ifndef SCSI_G_NCR5380_MEM instance->io_port = overrides[current_override].NCR5380_map_name; instance->n_io_port = region_size; + hostdata->io_width = 1; /* 8-bit PDMA by default */ /* * On NCR53C400 boards, NCR5380 registers are mapped 8 past @@ -412,6 +413,9 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) hostdata->c400_blk_cnt = 1; hostdata->c400_host_buf = 4; break; + case BOARD_DTC3181E: + hostdata->io_width = 2; /* 16-bit PDMA */ + /* fall through */ case BOARD_NCR53C400A: hostdata->c400_ctl_status = 9; hostdata->c400_blk_cnt = 10; @@ -427,6 +431,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) hostdata->c400_blk_cnt = 0x101; hostdata->c400_host_buf = 0x104; break; + case BOARD_DTC3181E: case BOARD_NCR53C400A: pr_err(DRV_MODULE_NAME ": unknown register offsets\n"); goto out_unregister; @@ -438,6 +443,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) switch (overrides[current_override].board) { case BOARD_NCR53C400: + case BOARD_DTC3181E: case BOARD_NCR53C400A: NCR5380_write(hostdata->c400_ctl_status, CSR_BASE); } @@ -565,7 +571,11 @@ static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, ; /* FIXME - no timeout */ #ifndef SCSI_G_NCR5380_MEM - insb(instance->io_port + hostdata->c400_host_buf, + if (hostdata->io_width == 2) + insw(instance->io_port + hostdata->c400_host_buf, + dst + start, 64); + else + insb(instance->io_port + hostdata->c400_host_buf, dst + start, 128); #else /* implies SCSI_G_NCR5380_MEM */ @@ -581,7 +591,11 @@ static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, ; /* FIXME - no timeout */ #ifndef SCSI_G_NCR5380_MEM - insb(instance->io_port + hostdata->c400_host_buf, + if (hostdata->io_width == 2) + insw(instance->io_port + hostdata->c400_host_buf, + dst + start, 64); + else + insb(instance->io_port + hostdata->c400_host_buf, dst + start, 128); #else /* implies SCSI_G_NCR5380_MEM */ @@ -639,7 +653,11 @@ static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, while (NCR5380_read(hostdata->c400_ctl_status) & CSR_HOST_BUF_NOT_RDY) ; // FIXME - timeout #ifndef SCSI_G_NCR5380_MEM - outsb(instance->io_port + hostdata->c400_host_buf, + if (hostdata->io_width == 2) + outsw(instance->io_port + hostdata->c400_host_buf, + src + start, 64); + else + outsb(instance->io_port + hostdata->c400_host_buf, src + start, 128); #else /* implies SCSI_G_NCR5380_MEM */ @@ -654,7 +672,11 @@ static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, ; // FIXME - no timeout #ifndef SCSI_G_NCR5380_MEM - outsb(instance->io_port + hostdata->c400_host_buf, + if (hostdata->io_width == 2) + outsw(instance->io_port + hostdata->c400_host_buf, + src + start, 64); + else + outsb(instance->io_port + hostdata->c400_host_buf, src + start, 128); #else /* implies SCSI_G_NCR5380_MEM */ @@ -675,8 +697,10 @@ static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, /* All documentation says to check for this. Maybe my hardware is too * fast. Waiting for it seems to work fine! KLL */ - while (!(i = NCR5380_read(hostdata->c400_ctl_status) & CSR_GATED_53C80_IRQ)) - ; // FIXME - no timeout + while (!(i = NCR5380_read(hostdata->c400_ctl_status) & CSR_GATED_53C80_IRQ)) { + udelay(4); /* DTC436 chip hangs without this */ + /* FIXME - no timeout */ + } /* * I know. i is certainly != 0 here but the loop is new. See previous diff --git a/drivers/scsi/g_NCR5380.h b/drivers/scsi/g_NCR5380.h index c5e57b7588c1..5ab64d96b576 100644 --- a/drivers/scsi/g_NCR5380.h +++ b/drivers/scsi/g_NCR5380.h @@ -44,7 +44,8 @@ #define NCR5380_implementation_fields \ int c400_ctl_status; \ int c400_blk_cnt; \ - int c400_host_buf; + int c400_host_buf; \ + int io_width; #else /* therefore SCSI_G_NCR5380_MEM */ |