Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753863AbdGJOmr (ORCPT ); Mon, 10 Jul 2017 10:42:47 -0400 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:45151 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753245AbdGJOmo (ORCPT ); Mon, 10 Jul 2017 10:42:44 -0400 From: Oleksij Rempel To: devicetree@vger.kernel.org, kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Rob Herring , Mark Rutland , Russell King , Shawn Guo , Fabio Estevam , Ohad Ben-Cohen , Bjorn Andersson , linux-remoteproc@vger.kernel.org, linux@rempel-privat.de Cc: Oleksij Rempel Subject: [PATCH v1 1/2] remoteproc: dt: Provide bindings for iMX6SX/7D Remote Processor Controller driver Date: Mon, 10 Jul 2017 16:42:19 +0200 Message-Id: <20170710144220.31594-2-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170710144220.31594-1-o.rempel@pengutronix.de> References: <20170710144220.31594-1-o.rempel@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2100 Lines: 58 Signed-off-by: Oleksij Rempel --- .../devicetree/bindings/remoteproc/imx-rproc.txt | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/imx-rproc.txt diff --git a/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt b/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt new file mode 100644 index 000000000000..e7c61993e1b8 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt @@ -0,0 +1,44 @@ +NXP iMX6SX/iMX7D Co-Processor Bindings +---------------------------------------- + +This binding provides support for ARM Cortex M4 Co-processor found on some +NXP iMX SoCs. + +Required properties: +- compatible Should be one of: + "fsl,imx7d-rproc" + "fsl,imx6sx-rproc" +- clocks Clock for co-processor (See: ../clock/clock-bindings.txt) +- syscfg Phandle to syscon block which provide access to + System Reset Controller + +Optional properties: +- reg: Should contain the address ranges for some of internal + memory regions. +- reg-names: Contains the corresponding names for the memory + regions. These should be named "ddr", "ocram", "ocram-s", + "ocram-epdc" or "ocram-pxp". +Fallowing memory ranges are expected: +- For "fsl,imx7d-rproc" + <0x00900000 0x00020000> - "ocram" + <0x00920000 0x00020000> - "ocram-epdc" + <0x00940000 0x00008000> - "ocram-pxp" + <0x80000000 0x0FFF0000> - "ddr" (code area) + <0x80000000 0x60000000> - "ddr" (data area) +- For "fsl,imx6sx-rproc" + <0x008F8000 0x00004000> - "ocram-s" + <0x80000000 0x0FFF8000> - "ddr" (code area) + <0x80000000 0x60000000> - "ddr" (data area) + +Note: the "ddr" code and data ranges are overlapping. Code area is smaller +than data area. So this range should be carefully chosen according to your +system and application requirements. + +Example: + imx_rproc: imx7d-rp0@0 { + compatible = "fsl,imx7d-rproc"; + reg = <0x80000000 0x80000>, <0x00900000 0x2000>; + reg-names = "ddr", "ocram"; + syscon = <&src>; + clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>; + }; -- 2.11.0