Messages in this thread Patch in this message | | | From | Tomeu Vizoso <> | Subject | [PATCH v2 09/11] ARM: tegra: Use pwrseq-simple for the wifi in Nyan | Date | Thu, 15 Jan 2015 17:12:21 +0100 |
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The Nyan boards have a Marvell 88w8897 wifi card connected through SDIO that need the reset line to be hold active for several milliseconds.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> --- arch/arm/boot/dts/tegra124-nyan.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi b/arch/arm/boot/dts/tegra124-nyan.dtsi index 25bbcbe..dbaf261f 100644 --- a/arch/arm/boot/dts/tegra124-nyan.dtsi +++ b/arch/arm/boot/dts/tegra124-nyan.dtsi @@ -365,11 +365,19 @@ status = "okay"; }; + sdhci0_pwrseq: sdhci0_pwrseq { + compatible = "mmc,pwrseq-simple"; + + reset-gpios = <&gpio TEGRA_GPIO(X, 7) GPIO_ACTIVE_LOW>; + delay = <20>; /* ms */ + }; + sdhci@0,700b0000 { /* WiFi/BT on this bus */ status = "okay"; bus-width = <4>; no-1-8-v; non-removable; + mmc-pwrseq = <&sdhci0_pwrseq>; }; sdhci@0,700b0400 { /* SD Card on this bus */ -- 1.9.3
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