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-rw-r--r--arch/arm64/boot/dts/rockchip/rk3399-puma.dts2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma.dts
index 58f91de211cd..d2304dd611de 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dts
@@ -695,7 +695,7 @@
&sdmmc {
// On the AP6255 Wifi module, firmware download fails above 25 MHz. Set to 10 MHz to be safe.
//max-frequency = <10000000>;
- max-frequency = <50000000>; // 50 MHz = High Speed 3.3V
+ max-frequency = <40000000>;
supports-sdio;
supports-sd;
bus-width = <4>;