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Mon, 06 Nov 2023 09:45:09 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Mon, 6 Nov 2023 09:45:08 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 6 Nov 2023 09:45:08 +0800 From: Chunfeng Yun To: Marek Vasut CC: Ryder Lee , Weijie Gao , Chunfeng Yun , GSS_MTK_Uboot_upstream , Subject: [PATCH 1/2] dt-bindings: phy-mtk-tphy: add properties for phy tuning Date: Mon, 6 Nov 2023 09:45:05 +0800 Message-ID: <20231106014506.15461-1-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-MTK: N X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Add properties to improve eye diagram which sometimes need adjust some parameters of u2phy; Add a property to tune disconnect threshold; Signed-off-by: Chunfeng Yun --- doc/device-tree-bindings/phy/phy-mtk-tphy.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/doc/device-tree-bindings/phy/phy-mtk-tphy.txt b/doc/device-tree-bindings/phy/phy-mtk-tphy.txt index 3042c39d09..300e236b5b 100644 --- a/doc/device-tree-bindings/phy/phy-mtk-tphy.txt +++ b/doc/device-tree-bindings/phy/phy-mtk-tphy.txt @@ -52,6 +52,15 @@ Optional properties (port (child) node): "da_ref": the reference clock of analog phy, used if the clocks of analog and digital phys are separated, otherwise uses "ref" clock only if needed. +- mediatek,eye-vrt : The selection of VRT reference voltage (U2 phy), + the value is [1, 7] +- mediatek,eye-term : The selection of HS_TX TERM reference voltage (U2 phy), + the value is [1, 7] +- mediatek,discth : The selection of disconnect threshold (U2 phy), + the value is [1, 15] +- mediatek,pre-emphasis : The level of pre-emphasis which used to widen + the eye opening and boost eye swing, + the value is [1, 3] Example: