From patchwork Tue Jul 24 02:51:11 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunyan Zhang X-Patchwork-Id: 142670 Delivered-To: patch@linaro.org Received: by 2002:a2e:9754:0:0:0:0:0 with SMTP id f20-v6csp6739812ljj; Mon, 23 Jul 2018 19:51:30 -0700 (PDT) X-Google-Smtp-Source: AAOMgpdSmgJcmeWsdinuImJ1SdZsspwCk2/UP834wwY5JRe//FDohgO7DdJnD0PmMZCcenk+sVx6 X-Received: by 2002:a63:9b19:: with SMTP id r25-v6mr14548244pgd.44.1532400689918; Mon, 23 Jul 2018 19:51:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1532400689; cv=none; d=google.com; s=arc-20160816; b=s9GuvhXYmbOGpVksyysyy7/Rm7s9kQrqezgs2pnWALTFVv14maljN7lskH/+d05T0B uhtq1KLk2V6MSoByH8LZu+cNbWCHT1VfDrkuaypnIDxGqErwj5LL52C3cbYffI2CUC9q e32+5UmNGFeIZLZI7v77gYZGmddsB2KaS8YgYaXTPj9+Rp3fnQRjxAtU+8CWkO+AjG+6 DbZLRMAfhMA6okrQemV3yZBHSGpMyCOxvSWpmEtEvm5IdZVsxMiwFsM4x3EFQhsyDCXt Ilp81IDOjl4N83ZAsZG2AuhSKJLoiK7GBVrLY8mdkc19DuQ4htcMqeG/kLyFZPPws/R+ jjvA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:dkim-signature:arc-authentication-results; bh=xdHbSNnc9rSh8Z3t0wDZpLwaxkUnQjKYG8WeWadjfHU=; b=Cg68fZSQ/vdO4e0iuk0rcggFNPrC5irhUzRCy1ncArADVffqhC7AwoeWidE9CAu9Tg po5szPymByZ4rIJ4ZN/XvSyONQzXXu1T/AIAmtFxiCZWtp95P5oeHBow8lemUFrfCy5L Q7dZv3OdyPUscesHzu5YWuEVfnMZWCBbKkUvAapv72dTkvWGC/jJ6yMGSoLWlukKwmb/ X996UYbULnu0HXb1sRu6Ds24d38NwopkX27ym/+Pyr5TFznyW3dUhRGUhx6gUUEi8Hb0 gDjTLBNlxRWfcuCOW6aY4DhHJPDCfmnAawqcgczDJJy9bLdrOpe868xOAbQIWc5aVoRx 6gSQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org header.s=google header.b=jAgXze0d; spf=pass (google.com: best guess record for domain of linux-mmc-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-mmc-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id j124-v6si11128405pfb.191.2018.07.23.19.51.29; Mon, 23 Jul 2018 19:51:29 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-mmc-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org header.s=google header.b=jAgXze0d; spf=pass (google.com: best guess record for domain of linux-mmc-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-mmc-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388367AbeGXDzk (ORCPT + 5 others); Mon, 23 Jul 2018 23:55:40 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:33069 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388365AbeGXDzk (ORCPT ); Mon, 23 Jul 2018 23:55:40 -0400 Received: by mail-pf1-f193.google.com with SMTP id b17-v6so491317pfi.0 for ; Mon, 23 Jul 2018 19:51:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=txKumXrCwsJ2SBxzMOb/NbZpSTq91k1tqQrJZCO3LMM=; b=jAgXze0dSOw2UANSA7IwGq5NpfuKN4Nf/E0pten2rnmMdhVreDCpXlIEiVkk/Fv3ag wgCzpi1gRsfGnwmTV+IQLtGukfMPehZAa++vgBYG2Iu3il0VhaSHnOdexDq5DLgeV33q Se8mXgxA3Sn0UYxhYgDf49bnA6DQTiirhBfmc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=txKumXrCwsJ2SBxzMOb/NbZpSTq91k1tqQrJZCO3LMM=; b=FKVAnsAm1KMHJmcaDxFpbNLYhOMkE5UljrR2OX5V2YbzKAyPBU4MNwvnU03383vhxB O2KU52rFE2wrkMEkGnuzeuZENQOvCGWAEkBNJEGzOA7WB6ndqzn2AGMxFgJ1JK16vjIK Z35+tIqoHNOpawOhVpK8v+A5JxHwtsmVIhKY8AxqphRlAx9bkVgv0GrIylboJUUzudYN J1V4jLdEZW//e7ZVV8GPQJafNDEHgD4zFwh+YuqNmv+aWTJSYnj6rRFSav4258oc0puO ofpea/ua7NAod+G+lV6bZypYqDHcL0ejYhZCso9UmpQIi7VSMqYlWef17G2hbLi2HLtr XQcg== X-Gm-Message-State: AOUpUlHnzPm0K4KZOnMpVJkbnE0PwckyCJbWYNJnHGMMqDk46uOmJ6N1 Mt4hW8HtSxVTNBwtruvvNpbulg== X-Received: by 2002:a62:c4c3:: with SMTP id h64-v6mr15714313pfk.39.1532400688351; Mon, 23 Jul 2018 19:51:28 -0700 (PDT) Received: from ubt.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id y132-v6sm14770373pfb.91.2018.07.23.19.51.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 23 Jul 2018 19:51:27 -0700 (PDT) From: Chunyan Zhang To: Ulf Hansson , Adrian Hunter Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Orson Zhai , Baolin Wang , Billows Wu , Jason Wu , zhang.lyra@gmail.com Subject: [PATCH V4 4/7] mmc: sdhci: add 32-bit block count support for v4 mode Date: Tue, 24 Jul 2018 10:51:11 +0800 Message-Id: <1532400671-23429-1-git-send-email-zhang.chunyan@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1532340508-8749-5-git-send-email-zhang.chunyan@linaro.org> References: <1532340508-8749-5-git-send-email-zhang.chunyan@linaro.org> Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Host Controller Version 4.10 re-defines SDMA System Address register as 32-bit Block Count for v4 mode, and SDMA uses ADMA System Address register (05Fh-058h) instead if v4 mode is enabled. Also when using 32-bit block count, 16-bit block count register need to be set to zero. Signed-off-by: Chunyan Zhang --- drivers/mmc/host/sdhci.c | 14 +++++++++++++- drivers/mmc/host/sdhci.h | 1 + 2 files changed, 14 insertions(+), 1 deletion(-) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 920d8ec..c272a2b 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1070,7 +1070,19 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd) /* Set the DMA boundary value and block size */ sdhci_writew(host, SDHCI_MAKE_BLKSZ(host->sdma_boundary, data->blksz), SDHCI_BLOCK_SIZE); - sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT); + + /* + * For Version 4.10 onwards, if v4 mode is enabled, 16-bit Block Count + * register need to be set to zero, 32-bit Block Count register would + * be selected. + */ + if (host->version >= SDHCI_SPEC_410 && host->v4_mode) { + if (sdhci_readw(host, SDHCI_BLOCK_COUNT)) + sdhci_writew(host, 0, SDHCI_BLOCK_COUNT); + sdhci_writew(host, data->blocks, SDHCI_32BIT_BLK_CNT); + } else { + sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT); + } } static inline bool sdhci_auto_cmd12(struct sdhci_host *host, diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 23318ff..81aae07 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -28,6 +28,7 @@ #define SDHCI_DMA_ADDRESS 0x00 #define SDHCI_ARGUMENT2 SDHCI_DMA_ADDRESS +#define SDHCI_32BIT_BLK_CNT SDHCI_DMA_ADDRESS #define SDHCI_BLOCK_SIZE 0x04 #define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF))