Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754427Ab3ILPk5 (ORCPT ); Thu, 12 Sep 2013 11:40:57 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:36345 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754352Ab3ILPky (ORCPT ); Thu, 12 Sep 2013 11:40:54 -0400 From: Sricharan R To: , , , , CC: , , , , , , Subject: [RFC PATCH 2/4] ARM: DTS: DRA: Add crossbar device binding Date: Thu, 12 Sep 2013 21:09:09 +0530 Message-ID: <1379000351-15672-3-git-send-email-r.sricharan@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1379000351-15672-1-git-send-email-r.sricharan@ti.com> References: <1379000351-15672-1-git-send-email-r.sricharan@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1770 Lines: 58 This adds the irq crossbar device node. There is a IRQ crossbar device in the soc, which maps the irq requests from the peripherals to the mpu interrupt controller's inputs. The Peripheral irq requests are connected to only one crossbar input and the output of the crossbar is connected to only one controller's input line. This models the crossbar as an interrupt controller. This a cascaded irqchip where the peripheral interrupt lines are connected to the crossbar and the crossbar's outputs are in turn connected to the GIC. Signed-off-by: Sricharan R --- arch/arm/boot/dts/dra7.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index a5d9350..da977e1 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -84,6 +84,7 @@ #size-cells = <1>; ranges; ti,hwmods = "l3_main_1", "l3_main_2"; + interrupt-parent = <&crossbar_mpu>; counter32k: counter@4ae04000 { compatible = "ti,omap-counter32k"; @@ -491,5 +492,20 @@ dmas = <&sdma 70>, <&sdma 71>; dma-names = "tx0", "rx0"; }; + + crossbar_mpu: @4a020000 { + compatible = "crossbar-irqchip"; + interrupt-parent = <&gic>; + interrupt-controller; + #interrupt-cells = <3>; + reg = <0x4a002a48 0x130>; + max-crossbar-lines = <512>; + max-irqs = <160>; + reg-size = <2>; + irqs-reserved = <0 1 2 3 5 6 131 132 139 140>; + #address-cells = <1>; + #size-cells = <1>; + }; + }; }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/