Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752590AbbK2Jj5 (ORCPT ); Sun, 29 Nov 2015 04:39:57 -0500 Received: from ns.gsystem.sk ([62.176.172.50]:58907 "EHLO gsystem.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752186AbbK2Jjx (ORCPT ); Sun, 29 Nov 2015 04:39:53 -0500 From: Ondrej Zary To: Finn Thain , Michael Schmitz , linux-m68k@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 74/71] ncr5380: Enable PDMA for NCR53C400A Date: Sun, 29 Nov 2015 10:39:40 +0100 Message-Id: <1448789980-30094-2-git-send-email-linux@rainbow-software.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <20151118083455.331768508@telegraphics.com.au> References: <20151118083455.331768508@telegraphics.com.au> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1906 Lines: 55 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 --- drivers/scsi/g_NCR5380.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index ce444da..c3abe48 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -324,7 +324,10 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) #endif break; case BOARD_NCR53C400A: + flags = FLAG_NO_DMA_FIXUP; +#ifndef PSEUDO_DMA flags = FLAG_NO_PSEUDO_DMA; +#endif ports = ncr_53c400a_ports; break; case BOARD_DTC3181E: @@ -412,6 +415,11 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) hostdata->c400_blk_cnt = 1; hostdata->c400_host_buf = 4; } + if (overrides[current_override].board == BOARD_NCR53C400A) { + hostdata->c400_ctl_status = 9; + hostdata->c400_blk_cnt = 10; + hostdata->c400_host_buf = 8; + } #else instance->base = overrides[current_override].NCR5380_map_name; hostdata->iomem = iomem; @@ -425,7 +433,8 @@ 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/