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=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 9A4C8C28CC0 for ; Thu, 30 May 2019 03:27:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6D65F22CF8 for ; Thu, 30 May 2019 03:27:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559186877; bh=l1tumsDRNm7UVNJ/XotrqQKMbese+OjzkoRQoyKmQoQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=pPbINWhidQq6NrtvViiXdINiXnjb7J5PA7j27q8vMBqk4uGYDeZZxcQMw1BTojXzS ssey5BOGrHFbyiqzCt6KESFeR1dEkJwkcviNmS/qkDlWmiQO1SOKmCk1hZ8YJIldg1 X0xkQbL5zegm+mWSmT6uO4QNRydx+GJGEDRwPUNk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388093AbfE3D14 (ORCPT ); Wed, 29 May 2019 23:27:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:56150 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732005AbfE3DTn (ORCPT ); Wed, 29 May 2019 23:19:43 -0400 Received: from localhost (ip67-88-213-2.z213-88-67.customer.algx.net [67.88.213.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 70F75248BA; Thu, 30 May 2019 03:19:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559186382; bh=l1tumsDRNm7UVNJ/XotrqQKMbese+OjzkoRQoyKmQoQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PE3uFsFxaEyN4QVMdHJiecls8XK0SbbwAw5Rs/0HHQDfdQ5Oz0VQfeK/uMLcL2sPt BYrvkn5sg5IPPzKPxuzMV8ZyjkGe2BZiC8jmjseyRJlteWX0KBZe7/bRVopjJQr+Xs r2lT7cY1LXTNwvqL7Nl19rsX2PTgBW7rKxKALt2c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yinbo Zhu , Adrian Hunter , Ulf Hansson , Sasha Levin Subject: [PATCH 4.14 121/193] mmc: sdhci-of-esdhc: add erratum eSDHC-A001 and A-008358 support Date: Wed, 29 May 2019 20:06:15 -0700 Message-Id: <20190530030505.530000201@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190530030446.953835040@linuxfoundation.org> References: <20190530030446.953835040@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ Upstream commit 05cb6b2a66fa7837211a060878e91be5eb10cb07 ] eSDHC-A001: The data timeout counter (SYSCTL[DTOCV]) is not reliable for DTOCV values 0x4(2^17 SD clock), 0x8(2^21 SD clock), and 0xC(2^25 SD clock). The data timeout counter can count from 2^13–2^27, but for values 2^17, 2^21, and 2^25, the timeout counter counts for only 2^13 SD clocks. A-008358: The data timeout counter value loaded into the timeout counter is less than expected and can result into early timeout error in case of eSDHC data transactions. The table below shows the expected vs actual timeout period for different values of SYSCTL[DTOCV]: these two erratum has the same quirk to control it, and set SDHCI_QUIRK_RESET_AFTER_REQUEST to fix above issue. Signed-off-by: Yinbo Zhu Acked-by: Adrian Hunter Signed-off-by: Ulf Hansson Signed-off-by: Sasha Levin --- drivers/mmc/host/sdhci-of-esdhc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index e26efda46b995..bcfa84aa2113a 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -883,8 +883,10 @@ static int sdhci_esdhc_probe(struct platform_device *pdev) if (esdhc->vendor_ver > VENDOR_V_22) host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ; - if (of_find_compatible_node(NULL, NULL, "fsl,p2020-esdhc")) + if (of_find_compatible_node(NULL, NULL, "fsl,p2020-esdhc")) { host->quirks2 |= SDHCI_QUIRK_RESET_AFTER_REQUEST; + host->quirks2 |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; + } if (of_device_is_compatible(np, "fsl,p5040-esdhc") || of_device_is_compatible(np, "fsl,p5020-esdhc") || -- 2.20.1