From patchwork Tue Feb 19 02:02:09 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "boojin.kim" X-Patchwork-Id: 2160841 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id B99D13FDF1 for ; Tue, 19 Feb 2013 02:05:36 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1U7cXJ-00027k-Rp; Tue, 19 Feb 2013 02:02:25 +0000 Received: from mailout3.samsung.com ([203.254.224.33]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1U7cXC-00027Q-TV for linux-arm-kernel@lists.infradead.org; Tue, 19 Feb 2013 02:02:23 +0000 Received: from epcpsbgr4.samsung.com (u144.gpu120.samsung.co.kr [203.254.230.144]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MIG00L1T2ZLC9C0@mailout3.samsung.com> for linux-arm-kernel@lists.infradead.org; Tue, 19 Feb 2013 11:02:09 +0900 (KST) Received: from epcpsbgm1.samsung.com ( [203.254.230.50]) by epcpsbgr4.samsung.com (EPCPMTA) with SMTP id 70.F0.05791.12DD2215; Tue, 19 Feb 2013 11:02:09 +0900 (KST) X-AuditID: cbfee690-b7f066d00000169f-b5-5122dd21d1dd Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 4A.A4.03918.12DD2215; Tue, 19 Feb 2013 11:02:09 +0900 (KST) Received: from DOBOOJINKIM03 ([12.23.119.77]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MIG00K9T2ZLX660@mmp1.samsung.com> for linux-arm-kernel@lists.infradead.org; Tue, 19 Feb 2013 11:02:09 +0900 (KST) From: Boojin Kim To: linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: In-reply-to: Subject: [PATCH 2/2] ARM: EXYNOS: support burst mode for for dev-to-mem and dev-to-mem transmit Date: Tue, 19 Feb 2013 11:02:09 +0900 Message-id: <00eb01ce0e45$20223c90$6066b5b0$%kim@samsung.com> X-Mailer: Microsoft Office Outlook 12.0 Thread-index: Ac4ORNEloL6pleRKSRCwKBmaENW5EwAAAdYQ Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrGLMWRmVeSWpSXmKPExsVy+t8zI13Fu0qBBrOfGltsenyN1YHRY/OS +gDGKC6blNSczLLUIn27BK6MCTPOsxVc5Ks4daWNsYFxNU8XIyeHhICJxI4l05khbDGJC/fW s3UxcnEICSxjlHi9fSJ7FyMHWNGtXVIgNUICixglHjzLgKphkvi9+QtYM5uApsSM79PZQWwR gWyJK433mUGKmAVeMkrc2naDDWSQkAC3xOrmIJAaTgEeiXV/OsF6hQUSJS7eWAlmswioSlzt mQZm8wrYSsy8sY4Z4gZ1iUd/dSHGG0k8WN/BBmIzC4hI7HvxjhFklYTAZzaJaa9nskDMEZD4 NvkQC0SvrMSmA1A/SkocXHGDZQKj6Cwk7QsYGVcxiqYWJBcUJ6UXmegVJ+YWl+al6yXn525i hITxhB2M9w5YH2JMBho9kVlKNDkfGAd5JfGGxsYmZiamJuaWpuampAkrifPKX5IJFBJITyxJ zU5NLUgtii8qzUktPsTIxMEp1cBYezO8dv5bxudKp0zW8Wz0bf64TWlJeN8cwxsdHLbZG2/s PnSH/bb9jw21RVLd7AcyUm/xCF89oX7ym2V/1yEmofnHY7Vz1B2dj949sJz39s+GvZukfljm h1Rv22QYXLFkivX5ex42z1oumezK+BW3457b/ArfztX2WV92vZZReb2OO8iV69paJZbijERD Leai4kQAyLjzEnkCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrMIsWRmVeSWpSXmKPExsVy+t9jAV3Fu0qBBnu26VlsenyN1YHRY/OS +gDGqAZGm4zUxJTUIoXUvOT8lMy8dFsl7+B453hTMwNDXUNLC3MlhbzE3FRbJRefAF23zByg qUoKZYk5pUChgMTiYiV9O0wTQkPcdC1gGiN0fUOC4HqMDNBAwjrGjAkzzrMVXOSrOHWljbGB cTVPFyMHh4SAicStXVJdjJxAppjEhXvr2UBsIYFFjBIPnmV0MXIB2cuYJH5v/sIMkmAT0JSY 8X06O4gtIpAtcaXxPjNIEbPAS0aJW9tusIEMFRLglljdHARSwynAI7HuTydYr7BAosTFGyvB bBYBVYmrPdPAbF4BW4mZN9YxQ9yjLvHory7EeCOJB+s7wO5hFhCR2PfiHeMERv5ZSNwFjIyr GEVTC5ILipPScw31ihNzi0vz0vWS83M3MYKj5JnUDsaVDRaHGAU4GJV4eD1clAKFWBPLiitz DzFKcDArifB2tAOFeFMSK6tSi/Lji0pzUosPMSYDHTiRWUo0OR8YwXkl8YbGJmZGlkZmFkYm 5uakCSuJ8zKeehIgJJCeWJKanZpakFoEs4WJg1OqgXFrtq7FMymRaVbbpN6U+h9iOVo9zybz 9XG29kxR8dsxGw9zzBKyevpu8hL5ydoz1YV1RRKMgl63R56o+/vQYsPKdV37YoV72EV+LxAz edd6M/HCn4MdO6+vO272WzzqaFFxXwb3tFum0taqimW7Zh96dHeSUt9cpvUXSxecODG72OmE duHBo3pKLMUZiYZazEXFiQD1ynsJ1gIAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130218_210219_169451_625F545A X-CRM114-Status: GOOD ( 10.46 ) X-Spam-Score: -7.6 (-------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-7.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [203.254.224.33 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: 'Kukjin Kim' , 'Russell King' , 'Jaswinder Singh' , 'Vinod Koul' , 'Ben Dooks' , 'Dan Williams' X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This patch adds to support burst mode for for dev-to-mem and dev-to-mem transmit Signed-off-by: Boojin Kim --- arch/arm/plat-samsung/dma-ops.c | 10 ++++++++-- arch/arm/plat-samsung/include/plat/dma-ops.h | 1 + 2 files changed, 9 insertions(+), 2 deletions(-) -- 1.7.5.4 diff --git a/arch/arm/plat-samsung/dma-ops.c b/arch/arm/plat-samsung/dma-ops.c index d088afa..c25e842 100644 --- a/arch/arm/plat-samsung/dma-ops.c +++ b/arch/arm/plat-samsung/dma-ops.c @@ -54,14 +54,20 @@ static int samsung_dmadev_config(unsigned ch, slave_config.direction = param->direction; slave_config.src_addr = param->fifo; slave_config.src_addr_width = param->width; - slave_config.src_maxburst = 1; + if (param->maxburst) + slave_config.src_maxburst = param->maxburst; + else + slave_config.src_maxburst = 1; dmaengine_slave_config(chan, &slave_config); } else if (param->direction == DMA_MEM_TO_DEV) { memset(&slave_config, 0, sizeof(struct dma_slave_config)); slave_config.direction = param->direction; slave_config.dst_addr = param->fifo; slave_config.dst_addr_width = param->width; - slave_config.dst_maxburst = 1; + if (param->maxburst) + slave_config.dst_maxburst = param->maxburst; + else + slave_config.dst_maxburst = 1; dmaengine_slave_config(chan, &slave_config); } else { pr_warn("unsupported direction\n"); diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h index f5144cd..95893c7 100644 --- a/arch/arm/plat-samsung/include/plat/dma-ops.h +++ b/arch/arm/plat-samsung/include/plat/dma-ops.h @@ -35,6 +35,7 @@ struct samsung_dma_prep { struct samsung_dma_config { enum dma_transfer_direction direction; enum dma_slave_buswidth width; + u32 maxburst; dma_addr_t fifo; };