Commit 828db68f authored by Oleksandr Suvorov's avatar Oleksandr Suvorov Committed by Shawn Guo
Browse files

ARM: dts: colibri-imx6ull: limit SDIO clock to 25MHz 



NXP and AzureWave don't recommend using SDIO bus mode 3.3V@50MHz due
to noise affecting the wireless throughput. Colibri iMX6ULL uses only
3.3V signaling for Wi-Fi module AW-CM276NF.

Limit the SDIO Clock on Colibri iMX6ULL to 25MHz.

Fixes: c2e4987e ("ARM: dts: imx6ull: add Toradex Colibri iMX6ULL support")
Signed-off-by: default avatarOleksandr Suvorov <oleksandr.suvorov@toradex.com>
Reviewed-by: default avatarFabio Estevam <festevam@gmail.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 29f6a20c

arch/arm/boot/dts/imx6ull-colibri-wifi.dtsi

+1 −0
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ &usdhc2 { 
	assigned-clock-rates = <0>, <198000000>;

	cap-power-off-card;

	keep-power-in-suspend;

	max-frequency = <25000000>;

	mmc-pwrseq = <&wifi_pwrseq>;

	no-1-8-v;

	non-removable;