From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF6CBC43603 for ; Wed, 18 Dec 2019 15:11:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AFE812146E for ; Wed, 18 Dec 2019 15:11:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727370AbfLRPLG (ORCPT ); Wed, 18 Dec 2019 10:11:06 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:50528 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727198AbfLRPK7 (ORCPT ); Wed, 18 Dec 2019 10:10:59 -0500 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xBIEsiA0110103; Wed, 18 Dec 2019 10:09:48 -0500 Received: from ppma03dal.us.ibm.com (b.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.11]) by mx0b-001b2d01.pphosted.com with ESMTP id 2wyp9kgjhp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 18 Dec 2019 10:09:48 -0500 Received: from pps.filterd (ppma03dal.us.ibm.com [127.0.0.1]) by ppma03dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id xBIF50lx008928; Wed, 18 Dec 2019 15:09:47 GMT Received: from b03cxnp08026.gho.boulder.ibm.com (b03cxnp08026.gho.boulder.ibm.com [9.17.130.18]) by ppma03dal.us.ibm.com with ESMTP id 2wvqc6yxgf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 18 Dec 2019 15:09:47 +0000 Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp08026.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xBIF9j3m47514066 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 18 Dec 2019 15:09:46 GMT Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DBE2213605E; Wed, 18 Dec 2019 15:09:45 +0000 (GMT) Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E862913604F; Wed, 18 Dec 2019 15:09:44 +0000 (GMT) Received: from talon7.ibm.com (unknown [9.41.103.158]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 18 Dec 2019 15:09:44 +0000 (GMT) From: Eddie James To: linux-aspeed@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, mark.rutland@arm.com, jason@lakedaemon.net, maz@kernel.org, robh+dt@kernel.org, tglx@linutronix.de, joel@jms.id.au, andrew@aj.id.au, eajames@linux.ibm.com Subject: [PATCH v3 05/12] dt-bindings: soc: Add Aspeed XDMA Engine Date: Wed, 18 Dec 2019 09:09:31 -0600 Message-Id: <1576681778-18737-6-git-send-email-eajames@linux.ibm.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1576681778-18737-1-git-send-email-eajames@linux.ibm.com> References: <1576681778-18737-1-git-send-email-eajames@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-18_04:2019-12-17,2019-12-18 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 suspectscore=1 adultscore=0 mlxlogscore=999 priorityscore=1501 bulkscore=0 spamscore=0 clxscore=1015 phishscore=0 mlxscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912180124 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Document the bindings for the Aspeed AST25XX and AST26XX XDMA engine. Signed-off-by: Eddie James Reviewed-by: Rob Herring --- Changes since v2: - Remove 'sdmc', rename 'vga-mem' to 'memory' .../devicetree/bindings/soc/aspeed/xdma.txt | 40 +++++++++++++++++++ MAINTAINERS | 6 +++ 2 files changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/aspeed/xdma.txt diff --git a/Documentation/devicetree/bindings/soc/aspeed/xdma.txt b/Documentation/devicetree/bindings/soc/aspeed/xdma.txt new file mode 100644 index 000000000000..58253ea1587b --- /dev/null +++ b/Documentation/devicetree/bindings/soc/aspeed/xdma.txt @@ -0,0 +1,40 @@ +Aspeed AST25XX and AST26XX XDMA Engine + +The XDMA Engine embedded in the AST2500 and AST2600 SOCs can perform automatic +DMA operations over PCI between the SOC (acting as a BMC) and a host processor. + +Required properties: + - compatible : must be "aspeed,ast2500-xdma" or + "aspeed,ast2600-xdma" + - reg : contains the address and size of the memory region + associated with the XDMA engine registers + - clocks : clock specifier for the clock associated with the + XDMA engine + - resets : reset specifier for the syscon reset associated with + the XDMA engine + - interrupts-extended : two interrupt cells; the first specifies the global + interrupt for the XDMA engine and the second + specifies the PCI-E reset or PERST interrupt. + - scu : a phandle to the syscon node for the system control + unit of the SOC + - memory : contains the address and size of the memory area to + be used by the XDMA engine for DMA operations + +Optional properties: + - pcie-device : should be either "bmc" or "vga", corresponding to + which device should be used by the XDMA engine for + DMA operations. If this property is not set, the XDMA + engine will use the BMC PCI-E device. + +Example: + + xdma@1e6e7000 { + compatible = "aspeed,ast2500-xdma"; + reg = <0x1e6e7000 0x100>; + clocks = <&syscon ASPEED_CLK_GATE_BCLK>; + resets = <&syscon ASPEED_RESET_XDMA>; + interrupts-extended = <&vic 6>, <&scu_ic ASPEED_AST2500_SCU_IC_PCIE_RESET_LO_TO_HI>; + scu = <&syscon>; + pcie-device = "bmc"; + memory = <0x9f000000 0x01000000>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index ac9c120d192b..8a14d4268bdc 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2708,6 +2708,12 @@ S: Maintained F: drivers/media/platform/aspeed-video.c F: Documentation/devicetree/bindings/media/aspeed-video.txt +ASPEED XDMA ENGINE DRIVER +M: Eddie James +L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers) +S: Maintained +F: Documentation/devicetree/bindings/soc/aspeed/xdma.txt + ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS DRIVERS M: Corentin Chary L: acpi4asus-user@lists.sourceforge.net -- 2.24.0