From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F301EC5517A for ; Tue, 10 Nov 2020 06:28:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A561220870 for ; Tue, 10 Nov 2020 06:28:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731115AbgKJG2O (ORCPT ); Tue, 10 Nov 2020 01:28:14 -0500 Received: from smtp2207-205.mail.aliyun.com ([121.197.207.205]:44054 "EHLO smtp2207-205.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726010AbgKJG2O (ORCPT ); Tue, 10 Nov 2020 01:28:14 -0500 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.3419429|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_system_inform|0.0519488-8.64106e-05-0.947965;FP=0|0|0|0|0|-1|-1|-1;HT=ay29a033018047212;MF=frank@allwinnertech.com;NM=1;PH=DS;RN=9;RT=9;SR=0;TI=SMTPD_---.IunvbX0_1604989684; Received: from allwinnertech.com(mailfrom:frank@allwinnertech.com fp:SMTPD_---.IunvbX0_1604989684) by smtp.aliyun-inc.com(10.147.40.2); Tue, 10 Nov 2020 14:28:08 +0800 From: Frank Lee To: tiny.windzz@gmail.com Cc: dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Yangtao Li , Dan Williams , Vinod Koul , Maxime Ripard , Chen-Yu Tsai Subject: [RESEND PATCH 05/19] dmaengine: sun6i: Add support for A100 DMA Date: Tue, 10 Nov 2020 14:28:02 +0800 Message-Id: <719852c6a9a597bd2e82d01a268ca02b9dee826c.1604988979.git.frank@allwinnertech.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yangtao Li The dma of a100 is similar to h6, with some minor changes to support greater addressing capabilities. Add support for it. Signed-off-by: Yangtao Li --- drivers/dma/sun6i-dma.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index f5f9c86c50bc..5cadd4d2b824 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -1173,6 +1173,30 @@ static struct sun6i_dma_config sun50i_a64_dma_cfg = { BIT(DMA_SLAVE_BUSWIDTH_8_BYTES), }; +/* + * TODO: Add support for more than 4g physical addressing. + * + * The A100 binding uses the number of dma channels from the + * device tree node. + */ +static struct sun6i_dma_config sun50i_a100_dma_cfg = { + .clock_autogate_enable = sun6i_enable_clock_autogate_h3, + .set_burst_length = sun6i_set_burst_length_h3, + .set_drq = sun6i_set_drq_h6, + .set_mode = sun6i_set_mode_h6, + .src_burst_lengths = BIT(1) | BIT(4) | BIT(8) | BIT(16), + .dst_burst_lengths = BIT(1) | BIT(4) | BIT(8) | BIT(16), + .src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | + BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | + BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) | + BIT(DMA_SLAVE_BUSWIDTH_8_BYTES), + .dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | + BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | + BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) | + BIT(DMA_SLAVE_BUSWIDTH_8_BYTES), + .has_mbus_clk = true, +}; + /* * The H6 binding uses the number of dma channels from the * device tree node. @@ -1225,6 +1249,7 @@ static const struct of_device_id sun6i_dma_match[] = { { .compatible = "allwinner,sun8i-h3-dma", .data = &sun8i_h3_dma_cfg }, { .compatible = "allwinner,sun8i-v3s-dma", .data = &sun8i_v3s_dma_cfg }, { .compatible = "allwinner,sun50i-a64-dma", .data = &sun50i_a64_dma_cfg }, + { .compatible = "allwinner,sun50i-a100-dma", .data = &sun50i_a100_dma_cfg }, { .compatible = "allwinner,sun50i-h6-dma", .data = &sun50i_h6_dma_cfg }, { /* sentinel */ } }; -- 2.28.0