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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 B1006C4CEC9 for ; Tue, 17 Sep 2019 13:52:27 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 82E5620678 for ; Tue, 17 Sep 2019 13:52:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="MNECfm5O"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="cgm5dIkw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 82E5620678 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=GplloDphfzas0T8oC4s4q8z5Ct2iyGDKO5EfbwzpT1E=; b=MNECfm5OuP9Smn Hw02NYxWena7zDnUR0qxGbKGG9Yrsm+8SNGUwPQBB2WhrCd5rnwZJCNJ6zK+B9ZmtNzmElwAJX2gw emPV0eOIVsRxE9FCkrQBXw9xMOBpAW+Lo87d8tKNWzXpDjOuBS8MuRC+bB8ocGMgIQxzQ3VHCr0/C qDsNGe0apbDwy5kvEoUE+N/MpymSxZMIZcRxLkxao42kefxaf/3Jxb2DMzXJq/qkQtYF1SBIZOP95 R7tpebpDAbL+6DBygxagsmEtOb3cRu0pLJynOHtmGWTvb89koq60+vFuhpdYS90Z+eGEKlqfvyvkv FLMDsRYWoZg3qO2gOgDQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iADty-000424-Us; Tue, 17 Sep 2019 13:52:18 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:3201:214:fdff:fe10:1be6]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iADtq-0003vS-Tm for linux-arm-kernel@lists.infradead.org; Tue, 17 Sep 2019 13:52:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=0kHpPNNmIunZ8PTjKROUxxoBt7miTlYbdWH51X5C1SM=; b=cgm5dIkwieWEw2rYPeRHqe2BB Uv2SyN0l6jOTsy9oaxb5LSe2QiFKFLxcBYR3wHIqrCPKrHwudxiPJLkb8WFszY2hkomxlwdPC/axr 4NXAfYvCV9lXNHkQbzu3gzMGS5mr2hdTRXGc0syLsXedKCl3EyJqRBqTNPISnfTF3Sn5hMAkcDZq5 jRDewaqOw3vnLSGydQNpcLNE3Q/mKySAi3GnCmkObAqiI1eZ3tq48HxaSE/MWN+Ce5vVDRUR0U/7c Rc/EQgDXhnj2Gjy/of1KFgsxNiqagieWh2sXvcwpVL+HwtZ5PmBDApzGjFgZ7KBecvB88jtvrIHvH uAz4FnKXg==; Received: from shell.armlinux.org.uk ([2002:4e20:1eda:1:5054:ff:fe00:4ec]:40658) by pandora.armlinux.org.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1iADte-0002Ct-RF; Tue, 17 Sep 2019 14:51:58 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1iADtd-0001LF-EG; Tue, 17 Sep 2019 14:51:57 +0100 Date: Tue, 17 Sep 2019 14:51:57 +0100 From: Russell King - ARM Linux admin To: Fabio Estevam Subject: Re: [REGRESSION] sdhci no longer detects SD cards on LX2160A Message-ID: <20190917135157.GT25745@shell.armlinux.org.uk> References: <20190917081931.GI25745@shell.armlinux.org.uk> <20190917104200.GJ25745@shell.armlinux.org.uk> <20190917111631.GL25745@shell.armlinux.org.uk> <20190917114210.GM25745@shell.armlinux.org.uk> <20190917123326.GN25745@shell.armlinux.org.uk> <20190917130759.GO25745@shell.armlinux.org.uk> <20190917133317.GQ25745@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190917_065211_293687_C069CBB2 X-CRM114-Status: GOOD ( 11.24 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dann frazier , linux-mmc , Adrian Hunter , Will Deacon , Nicolin Chen , Christoph Hellwig , Linux ARM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Sep 17, 2019 at 10:43:35AM -0300, Fabio Estevam wrote: > On Tue, Sep 17, 2019 at 10:33 AM Russell King - ARM Linux admin > wrote: > > > That attempts to set bit 12 of the host control register 2 (0x3e). > > The LX2160A documentation states that bit 28 of 0x3c (they're 32-bit > > wide registers there) is "reserved". > > > > So, you're asking for a documented reserved bit to be set... > > Correct, v4 is not supported here indeed. > > From the LX2160 doc: > "Conforms to the SD Host Controller Standard Specification version 3.0" The pressing question seems to be this: Are the eSDHC on the LX2160A DMA coherent or are they not? Any chances of finding out internally what the true answer to that, rather than me poking about trying stuff experimentally? Having a definitive answer for a potentially data-corrupting change would be really good... -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up According to speedtest.net: 11.9Mbps down 500kbps up _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel