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i.MX28 - driver for OTP eFuses

Question asked by ChristophG.Baumann on Apr 15, 2013
Latest reply on Oct 18, 2014 by lategoodbye

Hello Forum,


using a vanilla 3.7 Linux kernel for the i.MX28 EVK I started porting some drivers from the Freescale SDK based on 2.6.35.

The OTP driver allows reading the OTP cells via the sysfs but fails to write. I tracked the problem to a call to clk_get(). The name of the required clock seems to have changed from "hclk" to "hbus", but fixing that didn't help. sysfs shows a clock named "hbus". So what else could go wrong?