On Fri, Mar 31, 2023 at 11:39 AM Conor Dooley <conor@xxxxxxxxxx> wrote: > > On Fri, Mar 31, 2023 at 11:27:27AM -0700, Evan Green wrote: > > Add memory info for the D1 Nezha, which seems to be required for it to > > boot with the stock firmware. Note that this hardcodes 1GB, which is > > not technically correct as they also make models with different amounts > > of RAM. > > > Is the firmware supposed to populate this? > > Yup. Samuel intentionally did it this way: > https://lore.kernel.org/linux-riscv/8a2194bf-93bd-de4d-8d39-0cd72aabb0a9@xxxxxxxxxxxx/ > > Since I don't like using the firmware provided stuff to more easily > test I do this in my u-boot boot script: > > tftp 0x54000000 d1-fitImage.fit > bootm start 0x54000000 > bootm loados 0x54000000 > bootm ramdisk; > bootm prep; > fdt memory 0x40000000 0x20000000 > bootm go; > > Hope either of the above are helpful, > Conor. Ah, I see, thanks for the pointers. I've got whatever firmware came with the "dd and go" Fedora image I found on the internet somewhere, which doesn't seem to do the memory node population for me. I've been hesitant to rebuild the firmware as I don't want to break the Fedora "safe OS", and if there's a way to get mired in some build environment, I seem to have a nose for finding it. I'll probably just keep the patch locally in my tree, and if I'm forced to update the firmware for some other reason I'll try removing it. -Evan
