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 66D0BC28CC0 for ; Thu, 30 May 2019 04:26:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3610525474 for ; Thu, 30 May 2019 04:26:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559190374; bh=8keJriZsw9Y8ar9fdjBf2O42zokZWeaUYjGcDFk/UWA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BrOQri/O25HUM9Q/uiwquNC7Jq7Oxjiyrw8w+UuldUiUnznajJXbtTvK5smQZ3nWG 2d1qMAvaem9RjOVB7yXmn1ydamdttOgMDHJIEjwg8hCmCOLat5IRGCAFf0UaPqGo9T 1/c8QIRIsU3ju1yO5KYqz8o6E5/eXBmzq7JiA2M8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729111AbfE3DOf (ORCPT ); Wed, 29 May 2019 23:14:35 -0400 Received: from mail.kernel.org ([198.145.29.99]:35044 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729141AbfE3DOf (ORCPT ); Wed, 29 May 2019 23:14:35 -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 5708B2456A; Thu, 30 May 2019 03:14:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559186074; bh=8keJriZsw9Y8ar9fdjBf2O42zokZWeaUYjGcDFk/UWA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=onM2LSGPu6wWQfWecngReE80HmclV2I4If9hUsENltBlJ+5I8rooAVa4Jr0MfXmxC hbZ8pxIy0f1s3d524mYoZx4lRQ7U53GCht5adi/Y8b79LrE76lJce3y1J+YIvlhDx9 0igup57uUeGW6KuCypIWu1oyS32RJd9ltVEtVnNc= 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 5.0 190/346] mmc: sdhci-of-esdhc: add erratum eSDHC-A001 and A-008358 support Date: Wed, 29 May 2019 20:04:23 -0700 Message-Id: <20190530030550.700038526@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190530030540.363386121@linuxfoundation.org> References: <20190530030540.363386121@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@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 4fc4d2c7643c5..7e0eae8dafae0 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -1077,8 +1077,10 @@ 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