From patchwork Mon Apr 28 18:53:39 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Warren X-Patchwork-Id: 4080681 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 5ED56BFF02 for ; Mon, 28 Apr 2014 18:56:15 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8BD5E201DE for ; Mon, 28 Apr 2014 18:56:14 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B7861201DD for ; Mon, 28 Apr 2014 18:56:13 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Weqgp-0007Nw-MF; Mon, 28 Apr 2014 18:54:07 +0000 Received: from avon.wwwdotorg.org ([70.85.31.133]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Weqgn-0007B2-8f for linux-arm-kernel@lists.infradead.org; Mon, 28 Apr 2014 18:54:05 +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 C038F644E; Mon, 28 Apr 2014 12:53:44 -0600 (MDT) Received: from swarren-lx1.nvidia.com (localhost [127.0.0.1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by severn.wwwdotorg.org (Postfix) with ESMTPSA id 94780E40F6; Mon, 28 Apr 2014 12:53:43 -0600 (MDT) From: Stephen Warren To: Stephen Warren , Thierry Reding Subject: [PATCH] ARM: tegra: add SD wp-gpios to Venice2 DT Date: Mon, 28 Apr 2014 12:53:39 -0600 Message-Id: <1398711219-23029-1-git-send-email-swarren@wwwdotorg.org> X-Mailer: git-send-email 1.8.1.5 X-NVConfidentiality: public X-Virus-Scanned: clamav-milter 0.97.8 at avon.wwwdotorg.org X-Virus-Status: Clean X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140428_115405_374835_92D63683 X-CRM114-Status: GOOD ( 10.94 ) X-Spam-Score: -0.7 (/) Cc: linux-tegra@vger.kernel.org, Stephen Warren , 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 X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Stephen Warren Venice2 can detect write-protect on the SD card. Add the required DT entries to allow this. Signed-off-by: Stephen Warren Tested-by: Thierry Reding --- Thierry, could you test this for me; my Venice2 has been sent away for a few days for some rework. You should find that if you write-protect your SD card, the kernel fails/panics trying to mount it as a r/w root fs, whereas if the card is not write-protected, everything still works fine. Thanks. --- arch/arm/boot/dts/tegra124-venice2.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/tegra124-venice2.dts b/arch/arm/boot/dts/tegra124-venice2.dts index 84a6ec039e1d..00e741ba6927 100644 --- a/arch/arm/boot/dts/tegra124-venice2.dts +++ b/arch/arm/boot/dts/tegra124-venice2.dts @@ -943,6 +943,7 @@ sdhci@0,700b0400 { cd-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_HIGH>; power-gpios = <&gpio TEGRA_GPIO(R, 0) GPIO_ACTIVE_HIGH>; + wp-gpios = <&gpio TEGRA_GPIO(Q, 4) GPIO_ACTIVE_HIGH>; status = "okay"; bus-width = <4>; vqmmc-supply = <&vddio_sdmmc3>;