From patchwork Fri May 30 10:40:56 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 4269641 Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id B784C9F392 for ; Fri, 30 May 2014 10:41:10 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D0B4320268 for ; Fri, 30 May 2014 10:41:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0489120265 for ; Fri, 30 May 2014 10:41:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755608AbaE3KlA (ORCPT ); Fri, 30 May 2014 06:41:00 -0400 Received: from mail-pd0-f178.google.com ([209.85.192.178]:39171 "EHLO mail-pd0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752186AbaE3Kk5 (ORCPT ); Fri, 30 May 2014 06:40:57 -0400 Received: by mail-pd0-f178.google.com with SMTP id v10so820529pde.23 for ; Fri, 30 May 2014 03:40:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:sender:message-id:to:cc:in-reply-to:references:from:subject :user-agent:mime-version:content-type; bh=zMRSty21XkFgkZlmrTBTUdzr4Fls8ApfAMrX9cVpsZY=; b=LImBOSQQ+gM6ORqdYKa482SnUq4Bku5bShPXw3YDlOYkslakQNc7Yl39sUr6P1MYlQ 4TjdI5Gw6wRaI06swdTux1mALYCrihtIrJ/k1KHMQfXICIFXAGZyKvrwOMCy40TXb0No 6vdkoHsJP4NH7jhgukUMEM7qUcOp4Yo9A3yhWRTqD+hJduUNKPO8AmygMO8aOiafYEJP wLFJp+xyuu2AFtd06jM/KtSgOdif4fqB2YfSozjpjJQCRIN7/IOdCILfx7I846olzoRh wCt8i9WjxD4UtyiPPKjdSL9DDmp4rwruKXlP5goC/wjeaXSY3ESiycnEBdcQlexynIp+ Xpow== X-Received: by 10.66.218.36 with SMTP id pd4mr16977436pac.141.1401446457181; Fri, 30 May 2014 03:40:57 -0700 (PDT) Received: from remon.gmail.com (49.14.32.202.bf.2iij.net. [202.32.14.49]) by mx.google.com with ESMTPSA id qw8sm5754380pbb.27.2014.05.30.03.40.55 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 30 May 2014 03:40:56 -0700 (PDT) Date: Fri, 30 May 2014 03:40:56 -0700 (PDT) Message-ID: <87lhtjpn0o.wl%kuninori.morimoto.gx@renesas.com> To: Chris Ball Cc: Simon , Magnus , Linux-SH , Kuninori Morimoto , linux-mmc@vger.kernel.org In-Reply-To: <87ppivpn25.wl%kuninori.morimoto.gx@renesas.com> References: <87ppivpn25.wl%kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto Subject: [PATCH 3/3] mmc: tmio: care about DMA tx/rx addr offset User-Agent: Wanderlust/2.14.0 Emacs/23.3 Mule/6.0 MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Kuninori Morimoto Basically, SD_BUF0 Tx/Rx addresses are same in normal TMIO controller, but, it is different on Renesas R-Car SDHI controller if it uses DMAC (Rx address needs to add 0x2000 to Tx address) This patch adds new .dma_rx_offset and cares it Signed-off-by: Kuninori Morimoto Acked-by: Ben Dooks --- drivers/mmc/host/sh_mobile_sdhi.c | 3 +++ drivers/mmc/host/tmio_mmc_dma.c | 2 +- include/linux/mfd/tmio.h | 1 + 3 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c index b3baa83..91c6399 100644 --- a/drivers/mmc/host/sh_mobile_sdhi.c +++ b/drivers/mmc/host/sh_mobile_sdhi.c @@ -39,6 +39,7 @@ struct sh_mobile_sdhi_of_data { unsigned long tmio_flags; unsigned long capabilities; unsigned long capabilities2; + dma_addr_t dma_rx_offset; }; static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = { @@ -56,6 +57,7 @@ static const struct sh_mobile_sdhi_of_data of_rcar_gen2_compatible = { .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE, .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, .capabilities2 = MMC_CAP2_NO_2BLKS_READ, + .dma_rx_offset = 0x2000, }; static const struct of_device_id sh_mobile_sdhi_of_match[] = { @@ -228,6 +230,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) mmc_data->flags |= of_data->tmio_flags; mmc_data->capabilities |= of_data->capabilities; mmc_data->capabilities2 |= of_data->capabilities2; + dma_priv->dma_rx_offset = of_data->dma_rx_offset; } /* SD control register space size is 0x100, 0x200 for bus_shift=1 */ diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c index 03e7b28..1925170 100644 --- a/drivers/mmc/host/tmio_mmc_dma.c +++ b/drivers/mmc/host/tmio_mmc_dma.c @@ -311,7 +311,7 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat if (pdata->dma->chan_priv_rx) cfg.slave_id = pdata->dma->slave_id_rx; cfg.direction = DMA_DEV_TO_MEM; - cfg.src_addr = cfg.dst_addr; + cfg.src_addr = cfg.dst_addr + pdata->dma->dma_rx_offset; cfg.dst_addr = 0; ret = dmaengine_slave_config(host->chan_rx, &cfg); if (ret < 0) diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h index 8f6f2e9..777e29b 100644 --- a/include/linux/mfd/tmio.h +++ b/include/linux/mfd/tmio.h @@ -96,6 +96,7 @@ struct tmio_mmc_dma { int slave_id_tx; int slave_id_rx; int alignment_shift; + dma_addr_t dma_rx_offset; bool (*filter)(struct dma_chan *chan, void *arg); };