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Sun, 15 Dec 2019 21:40:11 -0800 Received: from mtkmbs08n1.mediatek.inc (172.21.101.55) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 15 Dec 2019 21:40:25 -0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 16 Dec 2019 13:40:30 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 16 Dec 2019 13:39:22 +0800 From: Biao Huang To: , Rob Herring , Andrew Lunn Subject: [v2, PATCH 2/2] net-next: dt-binding: dwmac-mediatek: add more description for RMII Date: Mon, 16 Dec 2019 13:39:58 +0800 Message-ID: <20191216053958.26130-3-biao.huang@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20191216053958.26130-1-biao.huang@mediatek.com> References: <20191216053958.26130-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191215_214021_209424_73EF642A X-CRM114-Status: GOOD ( 11.87 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [216.200.240.184 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Alexandre Torgue , Biao Huang , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Jose Abreu , linux-mediatek@lists.infradead.org, Maxime Coquelin , Matthias Brugger , Giuseppe Cavallaro , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org MT2712 SoC can provide RMII reference clock, so add corresponding description in dt-binding. Signed-off-by: Biao Huang --- .../bindings/net/mediatek-dwmac.txt | 33 +++++++++++++------ 1 file changed, 23 insertions(+), 10 deletions(-) diff --git a/Documentation/devicetree/bindings/net/mediatek-dwmac.txt b/Documentation/devicetree/bindings/net/mediatek-dwmac.txt index 8a08621a5b54..afbcaebf062e 100644 --- a/Documentation/devicetree/bindings/net/mediatek-dwmac.txt +++ b/Documentation/devicetree/bindings/net/mediatek-dwmac.txt @@ -14,7 +14,7 @@ Required properties: Should be "macirq" for the main MAC IRQ - clocks: Must contain a phandle for each entry in clock-names. - clock-names: The name of the clock listed in the clocks property. These are - "axi", "apb", "mac_main", "ptp_ref" for MT2712 SoC + "axi", "apb", "mac_main", "ptp_ref", "rmii_internal" for MT2712 SoC. - mac-address: See ethernet.txt in the same directory - phy-mode: See ethernet.txt in the same directory - mediatek,pericfg: A phandle to the syscon node that control ethernet @@ -23,8 +23,10 @@ Required properties: Optional properties: - mediatek,tx-delay-ps: TX clock delay macro value. Default is 0. It should be defined for RGMII/MII interface. + It should be defined for RMII interface when the reference clock is from MT2712 SoC. - mediatek,rx-delay-ps: RX clock delay macro value. Default is 0. - It should be defined for RGMII/MII/RMII interface. + It should be defined for RGMII/MII interface. + It should be defined for RMII interface. Both delay properties need to be a multiple of 170 for RGMII interface, or will round down. Range 0~31*170. Both delay properties need to be a multiple of 550 for MII/RMII interface, @@ -34,13 +36,20 @@ or will round down. Range 0~31*550. reference clock, which is from external PHYs, is connected to RXC pin on MT2712 SoC. Otherwise, is connected to TXC pin. +- mediatek,rmii-clk-from-mac: boolean property, if present indicates that + MT2712 SoC provides the RMII reference clock, which outputs to TXC pin only. - mediatek,txc-inverse: boolean property, if present indicates that 1. tx clock will be inversed in MII/RGMII case, 2. tx clock inside MAC will be inversed relative to reference clock which is from external PHYs in RMII case, and it rarely happen. + 3. the reference clock, which outputs to TXC pin will be inversed in RMII case + when the reference clock is from MT2712 SoC. - mediatek,rxc-inverse: boolean property, if present indicates that 1. rx clock will be inversed in MII/RGMII case. - 2. reference clock will be inversed when arrived at MAC in RMII case. + 2. reference clock will be inversed when arrived at MAC in RMII case, when + the reference clock is from external PHYs. + 3. the inside clock, which be sent to MAC, will be inversed in RMII case when + the reference clock is from MT2712 SoC. - assigned-clocks: mac_main and ptp_ref clocks - assigned-clock-parents: parent clocks of the assigned clocks @@ -50,29 +59,33 @@ Example: reg = <0 0x1101c000 0 0x1300>; interrupts = ; interrupt-names = "macirq"; - phy-mode ="rgmii"; + phy-mode ="rgmii-rxid"; mac-address = [00 55 7b b5 7d f7]; clock-names = "axi", "apb", "mac_main", "ptp_ref", - "ptp_top"; + "rmii_internal"; clocks = <&pericfg CLK_PERI_GMAC>, <&pericfg CLK_PERI_GMAC_PCLK>, <&topckgen CLK_TOP_ETHER_125M_SEL>, - <&topckgen CLK_TOP_ETHER_50M_SEL>; + <&topckgen CLK_TOP_ETHER_50M_SEL>, + <&topckgen CLK_TOP_ETHER_50M_RMII_SEL>; assigned-clocks = <&topckgen CLK_TOP_ETHER_125M_SEL>, - <&topckgen CLK_TOP_ETHER_50M_SEL>; + <&topckgen CLK_TOP_ETHER_50M_SEL>, + <&topckgen CLK_TOP_ETHER_50M_RMII_SEL>; assigned-clock-parents = <&topckgen CLK_TOP_ETHERPLL_125M>, - <&topckgen CLK_TOP_APLL1_D3>; + <&topckgen CLK_TOP_APLL1_D3>, + <&topckgen CLK_TOP_ETHERPLL_50M>; + power-domains = <&scpsys MT2712_POWER_DOMAIN_AUDIO>; mediatek,pericfg = <&pericfg>; mediatek,tx-delay-ps = <1530>; mediatek,rx-delay-ps = <1530>; mediatek,rmii-rxc; mediatek,txc-inverse; mediatek,rxc-inverse; - snps,txpbl = <32>; - snps,rxpbl = <32>; + snps,txpbl = <1>; + snps,rxpbl = <1>; snps,reset-gpio = <&pio 87 GPIO_ACTIVE_LOW>; snps,reset-active-low; };