[PATCH 3/4] arm64: dts: freescale: ten64: reduce maximum SD card frequency

Mathew McBride matt at traverse.com.au
Sun Apr 30 23:47:26 PDT 2023


There have been user reports of timeouts when using certain
SD cards. To improve stability, reduce the maximum SD card
frequency to 25MHz.

If this issue is resolved in the future (by PCB change
or software tuning), we will apply fixups in the bootloader
to set the correct parameters.

Signed-off-by: Mathew McBride <matt at traverse.com.au>
---
 arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts
index c4259d3a5712..31404143010d 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts
@@ -209,6 +209,7 @@ mdio1_phy4: ethernet-phy at 1f {
 
 &esdhc {
 	status = "okay";
+	max-frequency = <25000000>;
 };
 
 &i2c0 {
-- 
2.30.1




More information about the linux-arm-kernel mailing list