From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752157AbbJLKJD (ORCPT ); Mon, 12 Oct 2015 06:09:03 -0400 Received: from fw-tnat.cambridge.arm.com ([217.140.96.140]:25628 "EHLO cam-smtp0.cambridge.arm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751789AbbJLKIQ (ORCPT ); Mon, 12 Oct 2015 06:08:16 -0400 From: Liviu Dudau To: Will Deacon , Catalin Marinas , Bjorn Helgaas , Mark Rutland , Linus Walleij , Robin Murphy , Rob Herring , Ian Campbell , Kumar Gala , Arnd Bergmann , Jon Medhurst Cc: linux-pci , device-tree , LAKML , LKML Subject: [PATCH v3 3/5] Documentation: of: Document the bindings used by Juno R1 PCIe host bridge Date: Mon, 12 Oct 2015 11:07:37 +0100 Message-Id: <1444644459-2780-4-git-send-email-Liviu.Dudau@arm.com> X-Mailer: git-send-email 2.6.0 In-Reply-To: <1444644459-2780-1-git-send-email-Liviu.Dudau@arm.com> References: <1444644459-2780-1-git-send-email-Liviu.Dudau@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ARM's Juno R1 board used PLDA XpressRICH3-AXI IP to implement a PCIe host bridge. Introduce "plda" as vendor prefix for PLDA and document the DT bindings for PLDA XpressRICH3-AXI IP as well as ARM's Juno R1. Signed-off-by: Liviu Dudau Acked-by: Mark Rutland --- Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt | 10 ++++++++++ .../devicetree/bindings/pci/plda,xpressrich3-axi.txt | 12 ++++++++++++ Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 3 files changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt create mode 100644 Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt diff --git a/Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt b/Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt new file mode 100644 index 0000000..f7514c1 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt @@ -0,0 +1,10 @@ +* ARM Juno R1 PCIe interface + +This PCIe host controller is based on PLDA XpressRICH3-AXI IP +and thus inherits all the common properties defined in plda,xpressrich3-axi.txt +as well as the base properties defined in host-generic-pci.txt. + +Required properties: + - compatible: "arm,juno-r1-pcie" + - dma-coherent: The host controller bridges the AXI transactions into PCIe bus + in a manner that makes the DMA operations to appear coherent to the CPUs. diff --git a/Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt b/Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt new file mode 100644 index 0000000..f3f75bf --- /dev/null +++ b/Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt @@ -0,0 +1,12 @@ +* PLDA XpressRICH3-AXI host controller + +The PLDA XpressRICH3-AXI host controller can be configured in a manner that +makes it compliant with the SBSA[1] standard published by ARM Ltd. For those +scenarios, the host-generic-pci.txt bindings apply with the following additions +to the compatible property: + +Required properties: + - compatible: should contain "plda,xpressrich3-axi" to identify the IP used. + + +[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0029a/ diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 82d2ac9..57653eb 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -168,6 +168,7 @@ pericom Pericom Technology Inc. phytec PHYTEC Messtechnik GmbH picochip Picochip Ltd plathome Plat'Home Co., Ltd. +plda PLDA pixcir PIXCIR MICROELECTRONICS Co., Ltd powervr PowerVR (deprecated, use img) qca Qualcomm Atheros, Inc. -- 2.6.0