Hi John,
Am 25.02.2016 um 00:58 schrieb John David:
I changed the kernel commandline parameters to /"video=mxcdi0fb:RGB666,XGA earlyprintk di0_primary ldb=di0/" and also enable early_printk (CONFIG_EARLY_PRINTK=y ), but it still displays the
Have you set CONFIG_DEBUG_LL and CONFIG_TTY_PRINTK in your Linux config? AFAIK this is also needed for earlyprintk. When I want my Linux to be really verbose, I furthermore add "loglevel=10" to the command line.
Do you have any other experiment for ARM TrustZone on imx53 QSB?
AFAIK, no. We have a Trustzone demo for the USB Armory currently for which you can find the Linux [1] and Genode sources [2] online. There are several topic branches in my Linux repo that correspond to the USB Armory port and document the problems that we solved in a more detailed way as the final branch. Furthermore, there is a github issue [3] were I documented parts of the development too.
Cheers, Martin
[1] https://github.com/m-stein/linux/tree/genode_hw_usb_armory_tz_vmm [2] https://github.com/genodelabs/genode/blob/master/repos/os/run/tz_vmm.run [3] https://github.com/genodelabs/genode/issues/1497