AnsweredAssumed Answered

Autodetect of SD card speed?

Question asked by Alexander Lampret on Sep 20, 2017
Latest reply on Sep 20, 2017 by igorpadykov

Hello everyone,


one basic question regarding boot_cfg and sd card speed.

The sd card speed is defined by BOOT_CFG parameters.

After successful boot does linux rely on the boot_cfg settings or is sd card speed auto-detected?


As an example, if I specify BOOT_CFG to SDR12 but SD card supports SDR104. Does linux automatically switch to SDR104 or do I need to correctly specify BOOT_CFG?


Thx in advance!


Best regards,