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Tue, 28 Jan 2020 10:06:51 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id C8307100053; Tue, 28 Jan 2020 10:06:44 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag6node1.st.com [10.75.127.16]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id B0F50212A38; Tue, 28 Jan 2020 10:06:44 +0100 (CET) Received: from localhost (10.75.127.45) by SFHDAG6NODE1.st.com (10.75.127.16) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 28 Jan 2020 10:06:44 +0100 From: Ludovic Barre To: Ulf Hansson , Rob Herring Subject: [PATCH V2 5/9] dt-bindings: mmc: mmci: add delay block base register for sdmmc Date: Tue, 28 Jan 2020 10:06:32 +0100 Message-ID: <20200128090636.13689-6-ludovic.barre@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200128090636.13689-1-ludovic.barre@st.com> References: <20200128090636.13689-1-ludovic.barre@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG7NODE3.st.com (10.75.127.21) To SFHDAG6NODE1.st.com (10.75.127.16) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-01-28_02:2020-01-24, 2020-01-28 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200128_010655_590552_75E15387 X-CRM114-Status: GOOD ( 13.80 ) 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: devicetree@vger.kernel.org, Alexandre Torgue , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, srinivas.kandagatla@linaro.org, Ludovic Barre , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org 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 To support the sdr104 mode, the sdmmc variant has a hardware delay block to manage the clock phase when sampling data received by the card. This patch adds a second base register (optional) for sdmmc delay block. Signed-off-by: Ludovic Barre --- Documentation/devicetree/bindings/mmc/mmci.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt index 6d3c626e017d..4ec921e4bf34 100644 --- a/Documentation/devicetree/bindings/mmc/mmci.txt +++ b/Documentation/devicetree/bindings/mmc/mmci.txt @@ -28,6 +28,8 @@ specific for ux500 variant: - st,sig-pin-fbclk : feedback clock signal pin used. specific for sdmmc variant: +- reg : a second base register may be defined if a delay + block is present and used for tuning. - st,sig-dir : signal direction polarity used for cmd, dat0 dat123. - st,neg-edge : data & command phase relation, generated on sd clock falling edge. -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel