Follow

@mntmn Do you know of someone working on liberating the MNT Reform's platform from this TX firmware blob required for HDMI output? If yes - any estimate regarding likelihood for success (in the near future)?

@kuleszdl I'm not sure if it's possible because that particular firmware is signed by NXP. Maybe that can be cracked/circumvented, I don't know. The ISA of the blob should be Xtensa.

@mntmn Thank you! What is the size of this blob? And does it need to be loaded with root privileges to enable the output?

@kuleszdl @mntmn Loading firmware is something the kernel does without userland involved, so you don't run anything as a regular user to do so explicitly. See also wiki.gentoo.org/wiki/Linux_fir for more.

@kuleszdl the firmware is 103kB in size, but it is mostly empty. zipped it is 31kB big. it can be loaded together with u-boot or later by the HDMI kernel module.

@kuleszdl it does not run on the ARM but inside of the HDMI controller on some tiny embedded MCU.

@kuleszdl this is what the end of the file looks like, where you can see the iMX_CA@nxp.com mentioned

Sign in to participate in the conversation
Fosstodon

Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.