From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
SparkLAN card has stability issues at 100MHz. It still appears to be
able to max out its throughput this way, so limit the frequency to
ensure stable operation.
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
---
arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index 8c37b1293699..0e3c103dd7ff 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -1424,7 +1424,7 @@ &usdhc1 {
&usdhc2 {
assigned-clocks = <&clk IMX8MQ_CLK_USDHC2>;
- assigned-clock-rates = <200000000>;
+ assigned-clock-rates = <50000000>;
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc2>;
pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
@@ -1434,7 +1434,7 @@ &usdhc2 {
mmc-pwrseq = <&usdhc2_pwrseq>;
post-power-on-delay-ms = <20>;
cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
- max-frequency = <100000000>;
+ max-frequency = <50000000>;
disable-wp;
cap-sdio-irq;
keep-power-in-suspend;
--
2.52.0