From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from na01-by2-obe.outbound.protection.outlook.com (mail-by2on0081.outbound.protection.outlook.com [207.46.100.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id CE8AD1A0B57 for ; Tue, 1 Mar 2016 18:18:49 +1100 (AEDT) From: Zhao Qiang To: CC: , , , , , , Zhao Qiang Subject: [PATCH v3 2/7] QE: Add ucc hdlc document to bindings Date: Tue, 1 Mar 2016 15:09:38 +0800 Message-ID: <1456816183-22340-2-git-send-email-qiang.zhao@nxp.com> In-Reply-To: <1456816183-22340-1-git-send-email-qiang.zhao@nxp.com> References: <1456816183-22340-1-git-send-email-qiang.zhao@nxp.com> MIME-Version: 1.0 Content-Type: text/plain List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Add ucc hdlc document to Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt Signed-off-by: Zhao Qiang --- Changes for v2 - use ucc-hdlc instead of ucc_hdlc - add more information to properties. Changes for v3 - use fsl,tx-timeslot-mask instead of fsl,tx-timeslot - use fsl,rx-timeslot-mask instead of fsl,rx-timeslot - add more info .../bindings/powerpc/fsl/cpm_qe/network.txt | 81 ++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt index 29b28b8..03c7416 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt +++ b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt @@ -41,3 +41,84 @@ Example: fsl,mdio-pin = <12>; fsl,mdc-pin = <13>; }; + +* HDLC + +Currently defined compatibles: +- fsl,ucc-hdlc + +Properties for fsl,ucc-hdlc: +- rx-clock-name +- tx-clock-name + Usage: required + Value type: + Definition : Must be "brg1"-"brg16" for internal clock source, + Must be "clk1"-"clk24" for external clock source. + +- fsl,tdm-interface + Usage: optional + Value type: + Definition : Specify that hdlc is based on tdm-interface + +The property below is dependent on fsl,tdm-interface: +- fsl,rx-sync-clock + Usage: required + Value type: + Definition : Must be "none", "rsync_pin", "brg9-11" and "brg13-15". + +- fsl,tx-sync-clock + Usage: required + Value type: + Definition : Must be "none", "tsync_pin", "brg9-11" and "brg13-15". + +- fsl,tdm-framer-type + Usage: required for tdm interface + Value type: + Definition : "e1" or "t1".Now e1 and t1 are used, other framer types + are not supported. + +- fsl,tdm-id + Usage: required for tdm interface + Value type: + Definition : number of TDM ID + +- fsl,tx-timeslot-mask +- fsl,rx-timeslot-mask + Usage: required for tdm interface + Value type: + Definition : time slot mask for TDM operation. Indicates which time + slots used for transmitting and receiving. + +- fsl,siram-entry-id + Usage: required for tdm interface + Value type: + Definition : Must be 0,2,4...64. the number of TDM entry. + +- fsl,tdm-internal-loopback + usage: optional for tdm interface + value type: + Definition : Internal loopback connecting on TDM layer. + +Example for tdm interface: + + ucc@2000 { + compatible = "fsl,ucc-hdlc"; + rx-clock-name = "clk8"; + tx-clock-name = "clk9"; + fsl,rx-sync-clock = "rsync_pin"; + fsl,tx-sync-clock = "tsync_pin"; + fsl,tx-timeslot-mask = <0xfffffffe>; + fsl,rx-timeslot-mask = <0xfffffffe>; + fsl,tdm-framer-type = "e1"; + fsl,tdm-id = <0>; + fsl,siram-entry-id = <0>; + fsl,tdm-interface; + }; + +Example for hdlc without tdm interface: + + ucc@2000 { + compatible = "fsl,ucc-hdlc"; + rx-clock-name = "brg1"; + tx-clock-name = "brg1"; + }; -- 2.1.0.27.g96db324