RPi3 VS edk2-sdm845

Projects like Tow-Boot, a distribution of U-Boot, provide a nice boot menu and allow you to boot the "generic ARM" ISOs that are usually just UEFI. On the Raspberry Pi 3 and 4, you can put Tianocore EDK2 onto the SD card and boot any UEFI image, including Windows 10 or 11 for ARM.

The approach I used is very different from the conventional setup. Most setups will rely on the default boot loader stack that the Raspberry Pi uses, but this project instead relies on the UEFI images provided by https://github.com/pftf/RPi3/ and https://github.com/pftf/RPi4 instead. There are two reasons for this.

> Isn't a faster boot what everybody wants?

I’ll rather have slow boot and proper UEFI support so I can boot any vanilla ARM64 Linux distro (Debian proper), instead of images/distros which have been crafted to be device-specific (Raspbian).

I boot this thing once every second month at most. I honestly couldn’t care less about boot-times.

Luckily for me, there are solutions to my problem too ;)

https://github.com/pftf/RPi3

It's been manually implemented for many devices - the Renegade Project and Raspberry Pi 3 implementation do exactly this.

Odd to see using UEFI to NetBoot not considered an option at all.

It should eliminate the timing-bug and leave you in a more reliable (and scriptable!) pre-boot environment. What more do you need?!?

Both the RPi3 and 4 can be UEFI booted, so this is definitely a real-world option.

Links:

- https://github.com/pftf/RPi3

- https://github.com/pftf/RPi4

Considering the community spends more time tweaking Xiaomi and Google mobile devices, I would love for them to make some flagship tablets on the market. Dex is good and all, quite handy considering the size (for a tablet w included keyboard vs a laptop), but that is about all I can say about samsung in my recent years experience. XDA has been overclocking the original sd865 to match or overpower sd888 powered phones, both performance-wise and thermally. There is even a uefi bootloader for some sd845 phones (mostly xiaomi). The same goes for ubuntu touch (google and xiaomi)

You may want to look into things like: https://projectsandcastle.org/status. Like the other commenter said, iOS is locked down. If you want a Linux tablet, look at the JingPad, or just any old Android tablet.

There is a chance you could go through _lots_ of work to get some _Android_ device to work on raw Linux with the edk2-sdm845 UEFI firmware (https://github.com/edk2-porting/edk2-sdm845) that chainloads from the Android bootloader (ABL).

This isn't true at all, Windows for Odin is an active part of the renegade project and a dev is working on compatability so we know exactly what is currently working and what isn't: https://renegade-project.org/#/en/windows/state-frame.html https://github.com/edk2-porting/edk2-sdm845

this is done by an Open source project, if Qualcomm were to give proper drivers then the performance would be much much better

figuring out how to get a kernel & normal environment booting seems to be one of the biggest challenges.

there is a TianoCore EDK2 porting effort underway that seems to have support on a good number of phones. who knows what works & doesn't once you are able to start running your own mainline kernel, but way cool to see over a dozen phones on this list!

https://github.com/edk2-porting/edk2-sdm845

This is possible due to this project