Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754946AbbLFWVt (ORCPT ); Sun, 6 Dec 2015 17:21:49 -0500 Received: from ns.gsystem.sk ([62.176.172.50]:40603 "EHLO gsystem.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754593AbbLFWVr (ORCPT ); Sun, 6 Dec 2015 17:21:47 -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: [PATCH v2 74/71] ncr5380: Enable PDMA for NCR53C400A Date: Sun, 6 Dec 2015 23:21:29 +0100 Message-Id: <1449440489-9986-1-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: 2126 Lines: 61 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 | 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 -- 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/