diff options
| author | Ondrej Zary <linux@rainbow-software.org> | 2016-01-03 06:06:16 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-01-07 03:43:11 +0100 |
| commit | cecf3beef0ef311b5b375b6307fd5dc3f5dc3edb (patch) | |
| tree | d3ca9f51ebdc84240095838efdd554da048a3260 /drivers | |
| parent | ncr5380: Use runtime register mapping (diff) | |
| download | linux-cecf3beef0ef311b5b375b6307fd5dc3f5dc3edb.tar.xz linux-cecf3beef0ef311b5b375b6307fd5dc3f5dc3edb.zip | |
ncr5380: Enable PDMA for NCR53C400A
Add I/O register mapping for NCR53C400A and enable PDMA mode to
improve performance and fix non-working IRQ.
Tested with HP C2502 (and user-space enabler).
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/g_NCR5380.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index ddc0a18974d4..53e437744c4f 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -323,7 +323,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) #endif break; case BOARD_NCR53C400A: - flags = FLAG_NO_PSEUDO_DMA; + flags = FLAG_NO_DMA_FIXUP; ports = ncr_53c400a_ports; break; case BOARD_DTC3181E: @@ -405,27 +405,42 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) * On NCR53C400 boards, NCR5380 registers are mapped 8 past * the base address. */ - if (overrides[current_override].board == BOARD_NCR53C400) { + switch (overrides[current_override].board) { + case BOARD_NCR53C400: instance->io_port += 8; hostdata->c400_ctl_status = 0; hostdata->c400_blk_cnt = 1; hostdata->c400_host_buf = 4; + break; + case BOARD_NCR53C400A: + hostdata->c400_ctl_status = 9; + hostdata->c400_blk_cnt = 10; + hostdata->c400_host_buf = 8; + break; } #else instance->base = overrides[current_override].NCR5380_map_name; hostdata->iomem = iomem; - if (overrides[current_override].board == BOARD_NCR53C400) { + switch (overrides[current_override].board) { + case BOARD_NCR53C400: hostdata->c400_ctl_status = 0x100; hostdata->c400_blk_cnt = 0x101; hostdata->c400_host_buf = 0x104; + break; + case BOARD_NCR53C400A: + pr_err(DRV_MODULE_NAME ": unknown register offsets\n"); + goto out_unregister; } #endif if (NCR5380_init(instance, flags)) goto out_unregister; - if (overrides[current_override].board == BOARD_NCR53C400) + switch (overrides[current_override].board) { + case BOARD_NCR53C400: + case BOARD_NCR53C400A: NCR5380_write(hostdata->c400_ctl_status, CSR_BASE); + } NCR5380_maybe_reset_bus(instance); |