From patchwork Fri Nov 6 02:27:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AKASHI Takahiro X-Patchwork-Id: 11885779 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8A825174A for ; Fri, 6 Nov 2020 02:29:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5F35B20786 for ; Fri, 6 Nov 2020 02:29:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="E9j58YRC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725965AbgKFC3o (ORCPT ); Thu, 5 Nov 2020 21:29:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44116 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726055AbgKFC2T (ORCPT ); Thu, 5 Nov 2020 21:28:19 -0500 Received: from mail-pf1-x441.google.com (mail-pf1-x441.google.com [IPv6:2607:f8b0:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3B602C0613D2 for ; Thu, 5 Nov 2020 18:28:19 -0800 (PST) Received: by mail-pf1-x441.google.com with SMTP id 10so2942396pfp.5 for ; Thu, 05 Nov 2020 18:28:19 -0800 (PST) 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 :mime-version:content-transfer-encoding; bh=MEVDpgENX1AmvzEWHvOBoNvhkQ16z4ClQdBClfU+8tg=; b=E9j58YRCc6eGcDwuIsYKo3XfIKDgeJm4AGz5lHBzZ1K5SRk5Hh0HgmKUpHQ3nqaubG a512AGvWvdU3z34qEK2LMmE/ND0rNd/p8N18Imbgcr+GzIKJMjTaeKdN3EBwJgI7T3dk vlcOaYw6fx41IX0C7EUb1zMP5nhM0rNBWBOgLdKZR40WEa2rja/1f5wR/7Zha8Mj1l1+ iIEvAevE/6udyKC/X9twXSixY+LToAV9IqkDjwUZAZtD+nkddD9MU7hMvW9sQrnTbTQE 7gYvkLW4NfncinBYVvWEHC/y7zoUQyJmtUlyhmwXuuyD3/1oGxDCYm5oX4ojkispj6Cs DGfw== 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:mime-version:content-transfer-encoding; bh=MEVDpgENX1AmvzEWHvOBoNvhkQ16z4ClQdBClfU+8tg=; b=OLTmIc/tTYANJZ9uMW4KOrvtvzgJrD0f1G+hTvjTCeb0LKPptnASK+OGaLcIQAnBi3 8I+hce0EREbV1HAW4iMvEGasKA1frm98i2b9JZSurwvakfB8FV7D4WLDV51gemmyGyDP MbmhOgFx/zMbP9c9SpNf7WOSzLvaF10dbQYn4Qg9piU48u65YAMO7voS7jXEOsHPTux2 Rk+PKKqYW9euC9LoAuyhK3ap7LcKyj67zSBtctJZl2P1nvHxrLM0WlotgKOoAhVM74pv m3H6a/8MLeaIvAnSvo4VEPQ398GJs2i1CtsGGinl2cVgtWDc4oCxVkPfJwmZ3oESE1EN awtg== X-Gm-Message-State: AOAM531C59O0qj3tnrtPm/kmjc3jJnmY6Ty4G9BiRIWuZBjTN2DVzPiO Rgbv9xF3MpCiDSr4WJHPL4CLD/11rEex4Q== X-Google-Smtp-Source: ABdhPJz9cDPsgrflHX3y7tV2SlZiY3bSxpN6KZVO22EigS1WEiQNlb75DhGvy8rQS2vkQVYbqpWjTA== X-Received: by 2002:a65:44cd:: with SMTP id g13mr4977495pgs.259.1604629698767; Thu, 05 Nov 2020 18:28:18 -0800 (PST) Received: from localhost.localdomain (p784a66b9.tkyea130.ap.so-net.ne.jp. [120.74.102.185]) by smtp.gmail.com with ESMTPSA id m13sm3703040pjr.30.2020.11.05.18.28.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Nov 2020 18:28:18 -0800 (PST) From: AKASHI Takahiro To: ulf.hansson@linaro.org, adrian.hunter@intel.com Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, ben.chuang@genesyslogic.com.tw, greg.tu@genesyslogic.com.tw, AKASHI Takahiro Subject: [RFC PATCH v3.1 07/27] mmc: core: UHS-II support, set APP_CMD bit if necessary Date: Fri, 6 Nov 2020 11:27:06 +0900 Message-Id: <20201106022726.19831-8-takahiro.akashi@linaro.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106022726.19831-1-takahiro.akashi@linaro.org> References: <20201106022726.19831-1-takahiro.akashi@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org In UHS-II mode, MMC_APP_CMD command need not to be sent. Instead, APP_CMD bit in a packet should be set. Signed-off-by: Ben Chuang Signed-off-by: AKASHI Takahiro --- drivers/mmc/core/sd_ops.c | 9 +++++++++ drivers/mmc/core/uhs2.c | 4 ++++ 2 files changed, 13 insertions(+) diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c index f58bb50872f6..9dc296356928 100644 --- a/drivers/mmc/core/sd_ops.c +++ b/drivers/mmc/core/sd_ops.c @@ -26,6 +26,15 @@ int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card) if (WARN_ON(card && card->host != host)) return -EINVAL; + /* UHS2 packet has APP bit so only set APP_CMD flag here. + * Will set the APP bit when assembling UHS2 packet. + */ + if (host->flags & MMC_UHS2_SUPPORT && + host->flags & MMC_UHS2_INITIALIZED) { + host->flags |= MMC_UHS2_APP_CMD; + return 0; + } + cmd.opcode = MMC_APP_CMD; if (card) { diff --git a/drivers/mmc/core/uhs2.c b/drivers/mmc/core/uhs2.c index 1f6d0e0cf355..c0d61e7d9e4b 100644 --- a/drivers/mmc/core/uhs2.c +++ b/drivers/mmc/core/uhs2.c @@ -835,6 +835,10 @@ int uhs2_prepare_sd_cmd(struct mmc_host *host, struct mmc_request *mrq) header |= UHS2_PACKET_TYPE_CCMD; arg = cmd->opcode << UHS2_SD_CMD_INDEX_POS; + if (host->flags & MMC_UHS2_APP_CMD) { + arg |= UHS2_SD_CMD_APP; + host->flags &= ~MMC_UHS2_APP_CMD; + } uhs2_cmd = cmd->uhs2_cmd; payload = uhs2_cmd->payload;