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=-7.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 BEFA1C04E87 for ; Wed, 15 May 2019 12:43:44 +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 8FA342084E for ; Wed, 15 May 2019 12:43:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="SFbLk2to"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="miSv11/V" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8FA342084E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-amlogic-bounces+linux-amlogic=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:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=OniSw6wD/hZGPf+wICoqCBRiCWk5YPCYGe/bvk/Gqb4=; b=SFbLk2to0cpeqc 5tmMCUTGZuaeb/Bwv89zGRchsXav/XbhRlC0vzd/JuSsZjipaA4ZOLzLSD0cUP99Ff1InfOYAEpyW Dk9LEqJbBcev/HSITa+0euTHebBqbohUHYhN3qYUn1xuTakrLVFyjSLO6zl85GIwCXeiDMAeE7syy IRcu6SeXgGHGFSSuSIWiexYZG+Dpv0s+J7ii0mgM+BhmlVrva8P0LwR6x4VBgNh7LFX5fW3UAcxou 6noU3sgpjrHACvh8ooVXRw9pJlINJy4XNFIg5fjHst+I7sWU6InT5jZLCODBHgQA5mu+AdsTZCVn7 KQINeUD1s/VU4qAgVlbw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hQtFy-00066S-Gz; Wed, 15 May 2019 12:43:38 +0000 Received: from mail-wm1-x343.google.com ([2a00:1450:4864:20::343]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hQtFv-00065m-9k for linux-amlogic@lists.infradead.org; Wed, 15 May 2019 12:43:37 +0000 Received: by mail-wm1-x343.google.com with SMTP id q15so2353035wmj.0 for ; Wed, 15 May 2019 05:43:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:openpgp:autocrypt:organization :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=4+IPfXtr/zyvyJnFlkcNs+aGHAhvx9CNBUaI7wPMn/Y=; b=miSv11/VhHwHpj5KtpDC83uSn/eO4WLTb3ghRqc6ARq0NoClLBdszZkbjukN7SYfNe d0fWys1vXT92ASwZ531lhb3BulFKdM5tV88PJ+D+IXbQBMIpEie2NGD35W+6llDxj9hh sCSrepOh0ApoS0u/KeJtQu8vHwcMQ2/qRjKLJuSrjZcXnAnRUrT2qfbZoDZG+Xp9LxU+ Wip+iFbXsmtNnZMaZ42uIBmdwlJmHbDlHRLknkBhAS85J4FbukuzykK+Qxiloqgqj3oC N3ySEkI55v7W+7B6yLIPXNtrSFGJ3kBpTN1HNcA9WGdczgwqpTDp1ykx0z7oa2YHNmrU DDKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:openpgp:autocrypt :organization:message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=4+IPfXtr/zyvyJnFlkcNs+aGHAhvx9CNBUaI7wPMn/Y=; b=i6sZrVyIpRbj3PhHxHVlw6N3vQjRH7/jEmo2mnRUCcgnDqE/GXRLVkTrYKUKPZMdwl yRJC3jpQ3iZni9Si6O3xl2v0DQQFqMEYnPYH9AwjXwHA6KwvV4INeRplDVvPCJw1vmf7 DDno9EFlSSFAS47RXqbhRS7lXJsty7yptb63YGgpoFcxsnpJhkf9OmIc6rXAMaPBfrv2 asRtnLndYIs2QbaiEOut7mkt/sxS69fUTQG4IePV0mnKRveRusPA7mga123W4qn4IMXK pZT/EIWSwqT533WJVc/YOddnR5Dz26aeT4AEw84w19R3LZGo1N3AIupQr3QVL9BlnreH XoRQ== X-Gm-Message-State: APjAAAXqgokaoxhbcQEscxSrt5m3pY6MM+ekfjoviAFp3eUkQOVeDF3U 61iVQAzMDUCPCXDRaaTlM7KOaw== X-Google-Smtp-Source: APXvYqwcAtFQNnpA4Km7/VhuhxKrqL/yR65nCDu9j8fTBkz9a1rKkCHIGFGTjSxCXjAHuNJI2zEcgQ== X-Received: by 2002:a1c:a9d4:: with SMTP id s203mr22532861wme.27.1557924213042; Wed, 15 May 2019 05:43:33 -0700 (PDT) Received: from [10.1.2.12] (lmontsouris-657-1-212-31.w90-63.abo.wanadoo.fr. [90.63.244.31]) by smtp.gmail.com with ESMTPSA id k67sm2459834wmb.34.2019.05.15.05.43.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 15 May 2019 05:43:32 -0700 (PDT) Subject: Re: [PATCH 1/3] dt-bindings: mmc: meson-gx: add ddr-access-quirk property To: Martin Blumenstingl References: <20190513091548.16674-1-narmstrong@baylibre.com> <20190513091548.16674-2-narmstrong@baylibre.com> From: Neil Armstrong Openpgp: preference=signencrypt Autocrypt: addr=narmstrong@baylibre.com; prefer-encrypt=mutual; keydata= mQENBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAG0KE5laWwgQXJtc3Ryb25nIDxuYXJtc3Ryb25nQGJheWxpYnJlLmNvbT6JATsEEwEKACUC GyMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheABQJXDO2CAhkBAAoJEBaat7Gkz/iubGIH/iyk RqvgB62oKOFlgOTYCMkYpm2aAOZZLf6VKHKc7DoVwuUkjHfIRXdslbrxi4pk5VKU6ZP9AKsN NtMZntB8WrBTtkAZfZbTF7850uwd3eU5cN/7N1Q6g0JQihE7w4GlIkEpQ8vwSg5W7hkx3yQ6 2YzrUZh/b7QThXbNZ7xOeSEms014QXazx8+txR7jrGF3dYxBsCkotO/8DNtZ1R+aUvRfpKg5 ZgABTC0LmAQnuUUf2PHcKFAHZo5KrdO+tyfL+LgTUXIXkK+tenkLsAJ0cagz1EZ5gntuheLD YJuzS4zN+1Asmb9kVKxhjSQOcIh6g2tw7vaYJgL/OzJtZi6JlIW5AQ0ETVkGzwEIALyKDN/O GURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYpQTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXM coJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hi SvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY4yG6xI99NIPEVE9lNBXBKIlewIyVlkOa YvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoMMtsyw18YoX9BqMFInxqYQQ3j/HpVgTSv mo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUXoUk33HEAEQEAAYkBHwQYAQIACQUCTVkG zwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfnM7IbRuiSZS1unlySUVYu3SD6YBYnNi3G 5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa33eDIHu/zr1HMKErm+2SD6PO9umRef8V8 2o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCSKmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+ RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJ C3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTTQbM0WUIBIcGmq38+OgUsMYu4NzLu7uZF Acmp6h8guQINBFYnf6QBEADQ+wBYa+X2n/xIQz/RUoGHf84Jm+yTqRT43t7sO48/cBW9vAn9 GNwnJ3HRJWKATW0ZXrCr40ES/JqM1fUTfiFDB3VMdWpEfwOAT1zXS+0rX8yljgsWR1UvqyEP 3xN0M/40Zk+rdmZKaZS8VQaXbveaiWMEmY7sBV3QvgOzB7UF2It1HwoCon5Y+PvyE3CguhBd 9iq5iEampkMIkbA3FFCpQFI5Ai3BywkLzbA3ZtnMXR8Qt9gFZtyXvFQrB+/6hDzEPnBGZOOx zkd/iIX59SxBuS38LMlhPPycbFNmtauOC0DNpXCv9ACgC9tFw3exER/xQgSpDVc4vrL2Cacr wmQp1k9E0W+9pk/l8S1jcHx03hgCxPtQLOIyEu9iIJb27TjcXNjiInd7Uea195NldIrndD+x 58/yU3X70qVY+eWbqzpdlwF1KRm6uV0ZOQhEhbi0FfKKgsYFgBIBchGqSOBsCbL35f9hK/JC 6LnGDtSHeJs+jd9/qJj4WqF3x8i0sncQ/gszSajdhnWrxraG3b7/9ldMLpKo/OoihfLaCxtv xYmtw8TGhlMaiOxjDrohmY1z7f3rf6njskoIXUO0nabun1nPAiV1dpjleg60s3OmVQeEpr3a K7gR1ljkemJzM9NUoRROPaT7nMlNYQL+IwuthJd6XQqwzp1jRTGG26J97wARAQABiQM+BBgB AgAJBQJWJ3+kAhsCAikJEBaat7Gkz/iuwV0gBBkBAgAGBQJWJ3+kAAoJEHfc29rIyEnRk6MQ AJDo0nxsadLpYB26FALZsWlN74rnFXth5dQVQ7SkipmyFWZhFL8fQ9OiIoxWhM6rSg9+C1w+ n45eByMg2b8H3mmQmyWztdI95OxSREKwbaXVapCcZnv52JRjlc3DoiiHqTZML5x1Z7lQ1T3F 8o9sKrbFO1WQw1+Nc91+MU0MGN0jtfZ0Tvn/ouEZrSXCE4K3oDGtj3AdC764yZVq6CPigCgs 6Ex80k6QlzCdVP3RKsnPO2xQXXPgyJPJlpD8bHHHW7OLfoR9DaBNympfcbQJeekQrTvyoASw EOTPKE6CVWrcQIztUp0WFTdRGgMK0cZB3Xfe6sOp24PQTHAKGtjTHNP/THomkH24Fum9K3iM /4Wh4V2eqGEgpdeSp5K+LdaNyNgaqzMOtt4HYk86LYLSHfFXywdlbGrY9+TqiJ+ZVW4trmui NIJCOku8SYansq34QzYM0x3UFRwff+45zNBEVzctSnremg1mVgrzOfXU8rt+4N1b2MxorPF8 619aCwVP7U16qNSBaqiAJr4e5SNEnoAq18+1Gp8QsFG0ARY8xp+qaKBByWES7lRi3QbqAKZf yOHS6gmYo9gBmuAhc65/VtHMJtxwjpUeN4Bcs9HUpDMDVHdfeRa73wM+wY5potfQ5zkSp0Jp bxnv/cRBH6+c43stTffprd//4Hgz+nJcCgZKtCYIAPkUxABC85ID2CidzbraErVACmRoizhT KR2OiqSLW2x4xdmSiFNcIWkWJB6Qdri0Fzs2dHe8etD1HYaht1ZhZ810s7QOL7JwypO8dscN KTEkyoTGn6cWj0CX+PeP4xp8AR8ot4d0BhtUY34UPzjE1/xyrQFAdnLd0PP4wXxdIUuRs0+n WLY9Aou/vC1LAdlaGsoTVzJ2gX4fkKQIWhX0WVk41BSFeDKQ3RQ2pnuzwedLO94Bf6X0G48O VsbXrP9BZ6snXyHfebPnno/te5XRqZTL9aJOytB/1iUna+1MAwBxGFPvqeEUUyT+gx1l3Acl ZaTUOEkgIor5losDrePdPgE= Organization: Baylibre Message-ID: <9615cdb8-0a7e-fd39-45f0-79fdc7c0441c@baylibre.com> Date: Wed, 15 May 2019 14:43:31 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190515_054335_391196_675E2E91 X-CRM114-Status: GOOD ( 17.33 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, ulf.hansson@linaro.org, baylibre-upstreaming@groups.io, khilman@baylibre.com, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 14/05/2019 19:50, Martin Blumenstingl wrote: > Hi Neil, > > On Mon, May 13, 2019 at 11:16 AM Neil Armstrong wrote: >> >> On the Amlogic G12A SoC family, (only) the SDIO controller has a bug which >> makes any DDR access from the MMC controller fail. >> >> Add the amlogic,ddr-access-quirk property so signal this particular >> controller has this bug and needs a quirk to work properly. >> >> Signed-off-by: Neil Armstrong > Reviewed-by: Martin Blumenstingl > >> --- >> Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt b/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt >> index 13e70409e8ac..f8914dab06c6 100644 >> --- a/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt >> +++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt >> @@ -22,6 +22,10 @@ Required properties: >> clock rate requested by the MMC core. >> - resets : phandle of the internal reset line >> >> +Optional properties: >> +- amlogic,ddr-access-quirk: set when HW cannot access the DDR memory, like on >> + the G12A SDIO controller. > (I believe we cannot use a standard property like "dma-ranges" to > disable DMA access) > personally I prefer "amlogic,no-direct-memory-access" or > "amlogic,no-ddr-access", but if Rob is happy with the current naming > then I'm happy as well I have no preference, I can change it easily, Neil > > > Regards > Martin > _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic