From patchwork Sat Jan 6 09:51:14 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Li X-Patchwork-Id: 10147761 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 D5685602CA for ; Sat, 6 Jan 2018 09:52:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C3DE8289A8 for ; Sat, 6 Jan 2018 09:52:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B8842289AC; Sat, 6 Jan 2018 09:52:36 +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=-6.9 required=2.0 tests=BAYES_00,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 49CB5289A8 for ; Sat, 6 Jan 2018 09:52:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752860AbeAFJvf (ORCPT ); Sat, 6 Jan 2018 04:51:35 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:37715 "EHLO huawei.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752672AbeAFJvc (ORCPT ); Sat, 6 Jan 2018 04:51:32 -0500 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id DF3F6B7AF8A37; Sat, 6 Jan 2018 17:51:28 +0800 (CST) Received: from vm107-89-192.huawei.com (100.107.89.192) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.361.1; Sat, 6 Jan 2018 17:51:21 +0800 From: Li Wei To: , , , , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH v7 2/5] dt-bindings: scsi: ufs: add document for hisi-ufs Date: Sat, 6 Jan 2018 17:51:14 +0800 Message-ID: <20180106095117.67907-3-liwei213@huawei.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20180106095117.67907-1-liwei213@huawei.com> References: <20180106095117.67907-1-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 | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) 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..175693e47d6b --- /dev/null +++ b/Documentation/devicetree/bindings/ufs/ufs-hisi.txt @@ -0,0 +1,43 @@ +* 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 +- clocks : List of phandle and clock specifier pairs +- clock-names : List of clock input name strings sorted in the same + order as the clocks property. "ref_clk", "phy_clk" is optional +- freq-table-hz : Array of operating frequencies stored in the same + order as the clocks property. If this property is not + defined or a value in the array is "0" then it is assumed + that the frequency is set by the parent clock or a + fixed rate clock source. +- resets : reset node register, one reset the clk and the other reset the controller +- 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 = ; + clocks = <&crg_ctrl HI3660_CLK_GATE_UFSIO_REF>, + <&crg_ctrl HI3660_CLK_GATE_UFSPHY_CFG>; + clock-names = "ref_clk", "phy_clk"; + freq-table-hz = <0 0>, <0 0>; + /* offset: 0x84; bit: 12 */ + /* offset: 0x84; bit: 7 */ + resets = <&crg_rst 0x84 12>, + <&crg_rst 0x84 7>; + reset-names = "rst", "assert"; + };