AnsweredAssumed Answered

Read EEPROM time out

Question asked by tsung li wang on Dec 23, 2018
Latest reply on Jan 17, 2019 by tsung li wang

Hi Community,

I'm working on i.MX6 sabre-SD Quad self-designed platform and use yocto 2.0 to build my image.

According to my hardware designed, I use ATMEL series AT24C16  as my EEPROM.

Below is my DTSI settings.


&i2c1 {
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
status = "okay";


sgtl5000: sgtl5000@0a {
compatible = "fsl,sgtl5000";
reg = <0x0a>;
clocks = <&clks IMX6QDL_CLK_CKO>;/*201*/
VDDA-supply = <&reg_3p3v>;
VDDIO-supply = <&reg_3p3v>;

at24@50 {
compatible = "at24,24c16";
pagesize = <16>;
reg = <0x50>;


I try to cat content of EEPROM with below command.

cat /sys/devices/soc0/soc/2100000.aips-bus/21a0000.i2c/i2c-0/0-0050/eeprom

However, I will get below error.

Connection timed out


Why it will time out?

How can I fix this problem?

Did my DTSI setting right?


Thanks in advance!