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@xxxxxxxxxxxxx>
---
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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