From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967522AbeE2V7N (ORCPT ); Tue, 29 May 2018 17:59:13 -0400 Received: from mail-qt0-f193.google.com ([209.85.216.193]:35448 "EHLO mail-qt0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966679AbeE2V7E (ORCPT ); Tue, 29 May 2018 17:59:04 -0400 X-Google-Smtp-Source: ADUXVKLk2yirpYLOmwAK7waM6jzBjZJXh6AGaXkWLtXo9xVQb8ojSz+f7idgcIk420aa8z3Fh/WP3g== From: Ray Jui To: Lorenzo Pieralisi , Bjorn Helgaas , Rob Herring , Mark Rutland Cc: linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Ray Jui Subject: [PATCH 1/6] PCI: iproc: Update iProc PCI binding for INTx support Date: Tue, 29 May 2018 14:58:45 -0700 Message-Id: <1527631130-20045-2-git-send-email-ray.jui@broadcom.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1527631130-20045-1-git-send-email-ray.jui@broadcom.com> References: <1527631130-20045-1-git-send-email-ray.jui@broadcom.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Update the iProc PCIe binding document for better modeling of the legacy interrupt (INTx) support Signed-off-by: Ray Jui --- .../devicetree/bindings/pci/brcm,iproc-pcie.txt | 31 +++++++++++++++++----- 1 file changed, 24 insertions(+), 7 deletions(-) diff --git a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt index b8e48b4..7ea24dc 100644 --- a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt +++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt @@ -13,9 +13,6 @@ controller, used in Stingray PAXB-based root complex is used for external endpoint devices. PAXC-based root complex is connected to emulated endpoint devices internal to the ASIC - reg: base address and length of the PCIe controller I/O register space -- #interrupt-cells: set to <1> -- interrupt-map-mask and interrupt-map, standard PCI properties to define the - mapping of the PCIe interface to interrupt numbers - linux,pci-domain: PCI domain ID. Should be unique for each host controller - bus-range: PCI bus numbers covered - #address-cells: set to <3> @@ -41,6 +38,16 @@ Required: - brcm,pcie-ob-axi-offset: The offset from the AXI address to the internal address used by the iProc PCIe core (not the PCIe address) +Legacy interrupt (INTx) support (optional): + +Note INTx is for PAXB only. + +- interrupt-controller: claims itself as an interrupt controller for INTx +- #interrupt-cells: set to <1> +- interrupt-map-mask and interrupt-map, standard PCI properties to define +the mapping of the PCIe interface to interrupt numbers +- interrupts: interrupt line wired to the generic GIC for INTx support + MSI support (optional): For older platforms without MSI integrated in the GIC, iProc PCIe core provides @@ -77,9 +84,14 @@ Example: compatible = "brcm,iproc-pcie"; reg = <0x18012000 0x1000>; + interrupt-controller; #interrupt-cells = <1>; - interrupt-map-mask = <0 0 0 0>; - interrupt-map = <0 0 0 0 &gic GIC_SPI 100 IRQ_TYPE_NONE>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie0 1>, + <0 0 0 2 &pcie0 2>, + <0 0 0 3 &pcie0 3>, + <0 0 0 4 &pcie0 4>; + interrupts = ; linux,pci-domain = <0>; @@ -115,9 +127,14 @@ Example: compatible = "brcm,iproc-pcie"; reg = <0x18013000 0x1000>; + interrupt-controller; #interrupt-cells = <1>; - interrupt-map-mask = <0 0 0 0>; - interrupt-map = <0 0 0 0 &gic GIC_SPI 106 IRQ_TYPE_NONE>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie1 1>, + <0 0 0 2 &pcie1 2>, + <0 0 0 3 &pcie1 3>, + <0 0 0 4 &pcie1 4>; + interrupts = ; linux,pci-domain = <1>; -- 2.1.4