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=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 77C5EC28CC0 for ; Thu, 30 May 2019 04:09:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5138C250E0 for ; Thu, 30 May 2019 04:09:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559189357; bh=8dupTE69iXTuiR/Dve+SGnSpw1wvW4cREdHwZWJ7Xcw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vu70JcBsGZvqiDd/k32aK3hnatWll6tsUE4C8N40CPB9wRIqLSAWsXPID/vAa92Kd u2a2XXkTKc4jc7BH5yBdPJQtW0kS0YYxSAFuUeo5/6OUygmveO1H/0nXyhFvd8tGFf CEvcnaSiYFilx5gKDffGSSgc5p+bbi4vhpHkCxxw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727028AbfE3EHJ (ORCPT ); Thu, 30 May 2019 00:07:09 -0400 Received: from mail.kernel.org ([198.145.29.99]:47328 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731133AbfE3DRa (ORCPT ); Wed, 29 May 2019 23:17:30 -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 6F8FE24027; Thu, 30 May 2019 03:17:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559186249; bh=8dupTE69iXTuiR/Dve+SGnSpw1wvW4cREdHwZWJ7Xcw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qsIFZmH5gBinGxMhqrr0Dao2EuIre1BE45KBnsOFXjMBWWpCwEp8mlsUopSJsLnE6 dqTqWB/1OJGx73gmdGiGXHE6yJqg4Mlmnq9LzxjeK6lMEGlXlaK8IuY/kTGTt99r0u l34PrvQ5p5+pyk9xSA3wQIjgQs1Yh+2zb5OUtjzU= 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 4.19 167/276] mmc: sdhci-of-esdhc: add erratum eSDHC-A001 and A-008358 support Date: Wed, 29 May 2019 20:05:25 -0700 Message-Id: <20190530030535.858249716@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190530030523.133519668@linuxfoundation.org> References: <20190530030523.133519668@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 e63d22fb99edf..e5c598ae5f244 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -920,8 +920,10 @@ 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