Messages in this thread Patch in this message | | | From | Ondrej Zary <> | Subject | [PATCH v2 74/71] ncr5380: Enable PDMA for NCR53C400A | Date | Sun, 6 Dec 2015 23:21:29 +0100 |
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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> --- drivers/scsi/g_NCR5380.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index 86740fd..099fdac 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -324,7 +324,7 @@ 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: @@ -406,11 +406,18 @@ 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; @@ -425,7 +432,8 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) if (NCR5380_init(instance, flags)) goto out_unregister; - if (overrides[current_override].board == BOARD_NCR53C400) + if (overrides[current_override].board == BOARD_NCR53C400 || + overrides[current_override].board == BOARD_NCR53C400A) NCR5380_write(hostdata->c400_ctl_status, CSR_BASE); NCR5380_maybe_reset_bus(instance); -- Ondrej Zary
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