Which system do you use? Android, Ubuntu, OOWOW or others?
Linux kvim3 6.2.0 #1.5.2 SMP Fri Feb 2 11:01:33 IST 2024 aarch64 aarch64 aarch64 GNU/Linux
Which version of system do you use? Khadas official images, self built images, or others?
self build
Please describe your issue below:
Modified the meson-khadas-vim3.dtsi node sd_emmc_b as below to set sdr50 100Mhz
/* SD card */
&sd_emmc_b {
status = “okay”;
pinctrl-0 = <&sdcard_c_pins>;
pinctrl-1 = <&sdcard_clk_gate_c_pins>;
pinctrl-names = “default”, “clk-gate”;
bus-width = <4>;
cap-sd-highspeed;
max-frequency = <100000000>;
sd-uhs-sdr12;
sd-uhs-sdr25;
sd-uhs-sdr50;
// sd-uhs-sdr104;
disable-wp;
cd-gpios = <&gpio GPIOC_6 GPIO_ACTIVE_LOW>;
vmmc-supply = <&vsys_3v3>;
vqmmc-supply = <&vddao_1v8>;
};
and when loading the kernel getting the folllowing error,
[ 50.390601] mmc0: tuning execution failed: -5
[ 50.390782] mmc0: tuning execution failed: -5
Note sdr104 @ 180Mhz works without this issue