From patchwork Tue Jul 3 14:57:14 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yixun Lan X-Patchwork-Id: 938419 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=amlogic.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41KZlY1ZTqz9s3C for ; Tue, 3 Jul 2018 17:00:57 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754279AbeGCHA1 (ORCPT ); Tue, 3 Jul 2018 03:00:27 -0400 Received: from mail-sh2.amlogic.com ([58.32.228.45]:11708 "EHLO mail-sh2.amlogic.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753539AbeGCHAZ (ORCPT ); Tue, 3 Jul 2018 03:00:25 -0400 Received: from localhost.localdomain (10.18.20.250) by mail-sh2.amlogic.com (10.18.11.6) with Microsoft SMTP Server id 15.0.1320.4; Tue, 3 Jul 2018 14:59:34 +0800 From: Yixun Lan To: Jerome Brunet , Neil Armstrong CC: Yixun Lan , Kevin Hilman , Carlo Caione , Michael Turquette , Stephen Boyd , Rob Herring , Miquel Raynal , Boris Brezillon , Martin Blumenstingl , Liang Yang , Qiufang Dai , Jian Hu , , , , , Subject: [PATCH 1/3] clk: meson: add DT documentation for emmc clock controller Date: Tue, 3 Jul 2018 14:57:14 +0000 Message-ID: <20180703145716.31860-2-yixun.lan@amlogic.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180703145716.31860-1-yixun.lan@amlogic.com> References: <20180703145716.31860-1-yixun.lan@amlogic.com> MIME-Version: 1.0 X-Originating-IP: [10.18.20.250] Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Document the EMMC sub clock controller driver, the potential consumer of this driver is EMMC or NAND. Signed-off-by: Yixun Lan --- .../bindings/clock/amlogic,emmc-clkc.txt | 45 +++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/amlogic,emmc-clkc.txt diff --git a/Documentation/devicetree/bindings/clock/amlogic,emmc-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,emmc-clkc.txt new file mode 100644 index 000000000000..5534bd446363 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/amlogic,emmc-clkc.txt @@ -0,0 +1,45 @@ +* Amlogic EMMC Sub Clock Controller Driver + +The Amlogic EMMC clock controller generates and supplies clock to support +EMMC and NAND controller + +Required Properties: + +- compatible: should be: + "amlogic,emmc-clkc" + +- #clock-cells: should be 1. + +Two clocks are provided as the parent of this EMMC clock controller driver from +upper layer clock controller - eg "amlogic,axg-clkc" in AXG platfrom. +The main consumer of this driver is EMMC or NAND, to specify which the clock +they may consume, the preprocessor macros in the dt-bindings/clock/emmc-clkc.h +header and can be used in device tree sources. + +Parent node should have the following properties : +- compatible: "syscon", "simple-mfd, and "amlogic,emmc-clkc" +- reg: base address and size of the EMMC control register space. + +Example: Clock controller node: + +sd_emmc_c_clkc: clock-controller@7000 { + compatible = "amlogic,emmc-clkc", "syscon", "simple-mfd"; + reg = <0x0 0x7000 0x0 0x4>; + #clock-cells = <1>; + + clock-names = "clkin0", "clkin1"; + clocks = <&clkc CLKID_SD_EMMC_C_CLK0>, + <&clkc CLKID_FCLK_DIV2>; +}; + +Example: NAND controller node that consumes the clock generated by the clock + controller: + + nand: nfc@7800 { + compatible = "amlogic,meson-axg-nfc"; + reg = <0x0 0x7800 0x0 0x100>; + interrupts = ; + clocks = <&clkc CLKID_SD_EMMC_C>, + <&sd_emmc_c_clkc CLKID_EMMC_C_DIV>; + clock-names = "core", "device"; + }; From patchwork Tue Jul 3 14:57:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yixun Lan X-Patchwork-Id: 938421 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=amlogic.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41KZlm1MQHz9s29 for ; Tue, 3 Jul 2018 17:01:08 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754512AbeGCHA6 (ORCPT ); Tue, 3 Jul 2018 03:00:58 -0400 Received: from mail-sh2.amlogic.com ([58.32.228.45]:11708 "EHLO mail-sh2.amlogic.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754123AbeGCHA1 (ORCPT ); Tue, 3 Jul 2018 03:00:27 -0400 Received: from localhost.localdomain (10.18.20.250) by mail-sh2.amlogic.com (10.18.11.6) with Microsoft SMTP Server id 15.0.1320.4; Tue, 3 Jul 2018 14:59:34 +0800 From: Yixun Lan To: Jerome Brunet , Neil Armstrong CC: Yixun Lan , Kevin Hilman , Carlo Caione , Michael Turquette , Stephen Boyd , Rob Herring , Miquel Raynal , Boris Brezillon , Martin Blumenstingl , Liang Yang , Qiufang Dai , Jian Hu , , , , , Subject: [PATCH 2/3] clk: meson: add sub EMMC clock dt-bindings IDs Date: Tue, 3 Jul 2018 14:57:15 +0000 Message-ID: <20180703145716.31860-3-yixun.lan@amlogic.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180703145716.31860-1-yixun.lan@amlogic.com> References: <20180703145716.31860-1-yixun.lan@amlogic.com> MIME-Version: 1.0 X-Originating-IP: [10.18.20.250] Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add two clock bindings IDs which provided by the EMMC clock controller, These two clocks will be used by EMMC or NAND driver. Signed-off-by: Yixun Lan --- include/dt-bindings/clock/emmc-clkc.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 include/dt-bindings/clock/emmc-clkc.h diff --git a/include/dt-bindings/clock/emmc-clkc.h b/include/dt-bindings/clock/emmc-clkc.h new file mode 100644 index 000000000000..d9972c400e58 --- /dev/null +++ b/include/dt-bindings/clock/emmc-clkc.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */ +/* + * Meson EMMC sub clock tree IDs + * + * Copyright (c) 2018 Amlogic, Inc. All rights reserved. + */ + +#ifndef __EMMC_CLKC_H +#define __EMMC_CLKC_H + +#define CLKID_EMMC_C_MUX 0 +#define CLKID_EMMC_C_DIV 1 + +#endif