From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren 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> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Stephen Warren , Thierry Reding Cc: linux-tegra@vger.kernel.org, Stephen Warren , linux-arm-kernel@lists.infradead.org List-Id: linux-tegra@vger.kernel.org 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 --- 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>; -- 1.8.1.5