Hello Jonas, On Mon, Dec 29, 2025 at 08:15:29PM +0100, Jonas Karlman wrote: > I do not think we want to extend the use of the RK ATAGS, at least not > unless it is absolutely needed.
Understood, please ignore these patches then. > The memory size info is also encoded in PMUGRF os_reg2 reg, a simple > call to rockchip_sdram_size(PMUGRF_BASE + OS_REG2_REG) should be enough > to get the memory size info typically needed by U-Boot. I got this working, but I got stuck on the code in `dram_init_banksize` that tries to read reserved memory from OP-TEE. When left unmodified it mangles the ram banks and tells Linux it has 4GB+ of memory. So, I was looking for a way around that. I was also not aware that it's possible to tell the Rockchip TPL where to load the SPL. OP-TEE at 0x1000 was giving me a lot of grief. Besides these two issues, I'm actually quite happy to see that my branch matches yours pretty well, for my first attempt. > I have now pushed an updated rk3506 branch to GitHub [1], the old branch > last rebased in September is located at [2]. Thanks! I'm watching this and the kernel developments closely. FWIW, I have some Debian images for the Lyra boards [1]. Not very complicated, but I didn't see any options for Lyra besides the vendor's SDK. I plan on swapping in upstream sources as they become ready. [1]: https://github.com/agrif/debian-lyra Thanks, -Aaron
