From patchwork Tue Apr 17 14:08:11 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Li X-Patchwork-Id: 10345177 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 824C360548 for ; Tue, 17 Apr 2018 14:10:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 832182838F for ; Tue, 17 Apr 2018 14:10:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7572B283E8; Tue, 17 Apr 2018 14:10:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2236C283F2 for ; Tue, 17 Apr 2018 14:10:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752819AbeDQOIa (ORCPT ); Tue, 17 Apr 2018 10:08:30 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:55999 "EHLO huawei.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752145AbeDQOI2 (ORCPT ); Tue, 17 Apr 2018 10:08:28 -0400 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 7728454D3060D; Tue, 17 Apr 2018 22:08:24 +0800 (CST) Received: from vm107-89-192.huawei.com (100.107.89.192) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.361.1; Tue, 17 Apr 2018 22:08:17 +0800 From: Li Wei To: , , , , , , , , , , , , , , , , , , CC: , , Subject: [PATCH v9 2/5] dt-bindings: scsi: ufs: add document for hisi-ufs Date: Tue, 17 Apr 2018 22:08:11 +0800 Message-ID: <20180417140814.38098-3-liwei213@huawei.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20180417140814.38098-1-liwei213@huawei.com> References: <20180417140814.38098-1-liwei213@huawei.com> MIME-Version: 1.0 X-Originating-IP: [100.107.89.192] X-CFilter-Loop: Reflected Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP add ufs node document for Hisilicon. Signed-off-by: Li Wei --- Documentation/devicetree/bindings/ufs/ufs-hisi.txt | 29 ++++++++++++++++++++++ .../devicetree/bindings/ufs/ufshcd-pltfrm.txt | 10 +++++--- 2 files changed, 36 insertions(+), 3 deletions(-) create mode 100644 Documentation/devicetree/bindings/ufs/ufs-hisi.txt diff --git a/Documentation/devicetree/bindings/ufs/ufs-hisi.txt b/Documentation/devicetree/bindings/ufs/ufs-hisi.txt new file mode 100644 index 000000000000..d49ab7d8f31d --- /dev/null +++ b/Documentation/devicetree/bindings/ufs/ufs-hisi.txt @@ -0,0 +1,29 @@ +* Hisilicon Universal Flash Storage (UFS) Host Controller + +UFS nodes are defined to describe on-chip UFS hardware macro. +Each UFS Host Controller should have its own node. + +Required properties: +- compatible : compatible list, contains one of the following - + "hisilicon,hi3660-ufs", "jedec,ufs-1.1" for hisi ufs + host controller present on Hi36xx chipset. +- reg : should contain UFS register address space & UFS SYS CTRL register address, +- interrupt-parent : interrupt device +- interrupts : interrupt number +- resets : reset node register, the "arst" corresponds to reset the APB/AXI bus. +- reset-names : describe reset node register + +Example: + + ufs: ufs@ff3b0000 { + compatible = "hisilicon,hi3660-ufs", "jedec,ufs-1.1"; + /* 0: HCI standard */ + /* 1: UFS SYS CTRL */ + reg = <0x0 0xff3b0000 0x0 0x1000>, + <0x0 0xff3b1000 0x0 0x1000>; + interrupt-parent = <&gic>; + interrupts = ; + /* offset: 0x84; bit: 7 */ + resets = <&crg_rst 0x84 7>; + reset-names = "arst"; + }; diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt index c39dfef76a18..adcfb79f63f5 100644 --- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt +++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt @@ -41,6 +41,8 @@ Optional properties: -lanes-per-direction : number of lanes available per direction - either 1 or 2. Note that it is assume same number of lanes is used both directions at once. If not specified, default is 2 lanes per direction. +- resets : reset node register, the "rst" corresponds to reset the whole UFS IP. +- reset-names : describe reset node register Note: If above properties are not defined it can be assumed that the supply regulators or clocks are always on. @@ -61,9 +63,11 @@ Example: vccq-max-microamp = 200000; vccq2-max-microamp = 200000; - clocks = <&core 0>, <&ref 0>, <&iface 0>; - clock-names = "core_clk", "ref_clk", "iface_clk"; - freq-table-hz = <100000000 200000000>, <0 0>, <0 0>; + clocks = <&core 0>, <&ref 0>, <&phy 0>, <&iface 0>; + clock-names = "core_clk", "ref_clk", "phy_clk", "iface_clk"; + freq-table-hz = <100000000 200000000>, <0 0>, <0 0>, <0 0>; + resets = <&reset 0 1>; + reset-names = "rst"; phys = <&ufsphy1>; phy-names = "ufsphy"; };