Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932934AbcLGQze (ORCPT ); Wed, 7 Dec 2016 11:55:34 -0500 Received: from mail-pg0-f65.google.com ([74.125.83.65]:36319 "EHLO mail-pg0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932463AbcLGQz3 (ORCPT ); Wed, 7 Dec 2016 11:55:29 -0500 From: Anurup M X-Google-Original-From: Anurup M To: robh+dt@kernel.org, mark.rutland@arm.com, will.deacon@arm.com Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, anurup.m@huawei.com, zhangshaokun@hisilicon.com, tanxiaojun@huawei.com, xuwei5@hisilicon.com, sanil.kumar@hisilicon.com, john.garry@huawei.com, gabriele.paoloni@huawei.com, shiju.jose@huawei.com, wangkefeng.wang@huawei.com, linuxarm@huawei.com, shyju.pv@huawei.com, anurupvasu@gmail.com Subject: [PATCH v2 02/10] dt-bindings: hisi: Add Hisilicon HiP05/06/07 Djtag dts bindings Date: Wed, 7 Dec 2016 11:55:19 -0500 Message-Id: <1481129719-159487-1-git-send-email-anurup.m@huawei.com> X-Mailer: git-send-email 2.1.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2157 Lines: 60 From: Tan Xiaojun Add Hisilicon HiP05/06/07 Djtag dts bindings for CPU and IO Die Signed-off-by: Tan Xiaojun Signed-off-by: Anurup M --- .../devicetree/bindings/arm/hisilicon/djtag.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/hisilicon/djtag.txt diff --git a/Documentation/devicetree/bindings/arm/hisilicon/djtag.txt b/Documentation/devicetree/bindings/arm/hisilicon/djtag.txt new file mode 100644 index 0000000..733498e --- /dev/null +++ b/Documentation/devicetree/bindings/arm/hisilicon/djtag.txt @@ -0,0 +1,41 @@ +The Hisilicon Djtag is an independent component which connects with some other +components in the SoC by Debug Bus. The djtag is available in CPU and IO dies +in the chip. The djtag controls access to connecting modules of CPU and IO +dies. +The various connecting components in CPU die (like L3 cache, L3 cache PMU etc.) +are accessed by djtag during real time debugging. In IO die there are connecting +components like RSA. These components appear as devices atatched to djtag bus. + +Hisilicon HiP05/06 djtag for CPU and HiP05 IO die +Required properties: + - compatible : "hisilicon,hisi-djtag-v1" + - reg : Register address and size + - scl-id : The Super Cluster ID for CPU or IO die + +Hisilicon HiP06 djtag for IO die and HiP07 djtag for CPU and IO die +Required properties: + - compatible : "hisilicon,hisi-djtag-v2" + - reg : Register address and size + - scl-id : The Super Cluster ID for CPU or IO die + +Example 1: Djtag for CPU die + + /* for Hisilicon HiP05 djtag for CPU Die */ + djtag0: djtag@80010000 { + compatible = "hisilicon,hisi-djtag-v1"; + reg = <0x0 0x80010000 0x0 0x10000>; + scl-id = <0x02>; + + /* All connecting components will appear as child nodes */ + }; + +Example 2: Djtag for IO die + + /* for Hisilicon HiP05 djtag for IO Die */ + djtag1: djtag@d0000000 { + compatible = "hisilicon,hisi-djtag-v1"; + reg = <0x0 0xd0000000 0x0 0x10000>; + scl-id = <0x01>; + + /* All connecting components will appear as child nodes */ + }; -- 2.1.4