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,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 13A49C28EBD for ; Sun, 9 Jun 2019 17:03:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D4D2A206DF for ; Sun, 9 Jun 2019 17:03:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560099824; bh=5ixMBIq1+roRVC3r4/nZrw1E/YkRIL6fVkkxoQk5dnA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=gto+orp0z5eDriwB+aYyAnqWkPidtXsCSn1E7BuZjwfZlMAOLCYprwDyk1BOrnL3u 6BQBtfg0HwZ4VxYtv5enMweNG9tXgdDwAmZBKZV+21Mbq1hHtybtaKjhjoQKyKo+4P m8xaaU5gE7wIGRT0DTOTZSELCc4rVWOpKJueromw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388475AbfFIRDo (ORCPT ); Sun, 9 Jun 2019 13:03:44 -0400 Received: from mail.kernel.org ([198.145.29.99]:42096 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388448AbfFIRDi (ORCPT ); Sun, 9 Jun 2019 13:03:38 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 DF6D6206C3; Sun, 9 Jun 2019 17:03:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560099818; bh=5ixMBIq1+roRVC3r4/nZrw1E/YkRIL6fVkkxoQk5dnA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VtrS1lzn1lwjCDs6R2Lr/R9b4Hzu7R0Q77qKA6mr8JzSvOfFnFf4goDgSnXaRcZBG zQ0NFwEcgXDXF9TbUDTaowsWFMDNCcwvLw5d0iBK8Bku5N+GpyO8gpdl2GZt4X7rSy 8XOf3UTa4ewztKonv7aRlThO7kS80SvxVr/CKzDc= 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 4.4 140/241] mmc: sdhci-of-esdhc: add erratum eSDHC-A001 and A-008358 support Date: Sun, 9 Jun 2019 18:41:22 +0200 Message-Id: <20190609164151.828510409@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190609164147.729157653@linuxfoundation.org> References: <20190609164147.729157653@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 a5a11e7ab53b4..356b294c93c9e 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -624,8 +624,10 @@ 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