alt Hacker NewsIt is you who is confused here. The first link is completely irrelevant to the Librem 5, and the second one points to a thread where the actual information present has been written by me.
The only non-free piece of code executed by the ARM Cortex-A53 cluster on the Librem 5 is the SoC's mask ROM bootloader. Once the control is passed to u-boot/ATF there is not a single non-free blob that runs there. Some peripherals may need blobs to be uploaded onto them to work, such as DP, DDRC and one of the used Wi-Fi cards (handled by ROM/u-boot/Linux respectively), while others boot from their own internal memories. Not all of those firmwares are non-free, but most are.
In the end, as I said earlier, the assessment depends on where you draw the line. I happen to draw it at the main CPU and the blobs that need to run within the user-controlled OS, which are unacceptable for me and which aren't present on the Librem 5.
Ah. I see. So the blobs are loaded into the separate microprocessors. Either way, it's the same as pretty much any modern phone, where the modem (and other secondary processors) are running some proprietary firmware and is communicating with the OS processor.
I don't see how it's different from running a free open-source ASOP OS. On the mainstream Android devices, the wireless hardware is also isolated and communication is done via IOMMU.
There's some debate as to whether using the USB stack for communication to the modem in the Librem 5 is less secure than IOMMU as well.