From patchwork Wed Mar 6 02:50:20 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Warren X-Patchwork-Id: 2222731 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id 7A6603FCF2 for ; Wed, 6 Mar 2013 02:53:38 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UD4R6-0000ZI-Cb; Wed, 06 Mar 2013 02:50:32 +0000 Received: from avon.wwwdotorg.org ([2001:470:1f0f:bd7::2]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UD4R3-0000Yt-8y; Wed, 06 Mar 2013 02:50:29 +0000 Received: from severn.wwwdotorg.org (unknown [192.168.65.5]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by avon.wwwdotorg.org (Postfix) with ESMTPS id 6672C642E; Tue, 5 Mar 2013 19:54:35 -0700 (MST) Received: from dart.wwwdotorg.org (c-98-245-170-70.hsd1.co.comcast.net [98.245.170.70]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by severn.wwwdotorg.org (Postfix) with ESMTPSA id C3F22E40FD; Tue, 5 Mar 2013 19:50:27 -0700 (MST) From: Stephen Warren To: Stephen Warren Subject: [PATCH 1/2] ARM: bcm2835: add SPI device to DT Date: Tue, 5 Mar 2013 19:50:20 -0700 Message-Id: <1362538221-19296-1-git-send-email-swarren@wwwdotorg.org> X-Mailer: git-send-email 1.7.10.4 X-NVConfidentiality: public X-Virus-Scanned: clamav-milter 0.96.5 at avon.wwwdotorg.org X-Virus-Status: Clean X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130305_215029_403972_5A8541CD X-CRM114-Status: GOOD ( 10.22 ) X-Spam-Score: -2.5 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -0.6 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Chris Boot , linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The BCM2835 has a single instance of the "SPI0"-type SPI master controller. Instantiate it in the SoC .dtsi file, Don't enable it in the Raspberry Pi board .dts file, since we have no idea what is actually connected, and hence no idea what to set the bus clock rate to. Signed-off-by: Stephen Warren --- arch/arm/boot/dts/bcm2835.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi index 7e0481e..1b88cea 100644 --- a/arch/arm/boot/dts/bcm2835.dtsi +++ b/arch/arm/boot/dts/bcm2835.dtsi @@ -64,6 +64,16 @@ #interrupt-cells = <2>; }; + spi: spi@20204000 { + compatible = "brcm,bcm2835-spi"; + reg = <0x7e204000 0x1000>; + interrupts = <2 22>; + clocks = <&clk_spi>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + i2c0: i2c@20205000 { compatible = "brcm,bcm2835-i2c"; reg = <0x7e205000 0x1000>; @@ -107,5 +117,12 @@ #clock-cells = <0>; clock-frequency = <250000000>; }; + + clk_spi: spi { + compatible = "fixed-clock"; + reg = <2>; + #clock-cells = <0>; + clock-frequency = <250000000>; + }; }; };