On Sat, 2018-06-02 at 16:55 +0100, Ian Campbell wrote: > On Sat, 2018-06-02 at 15:36 +0300, Timo Jyrinki wrote: > > 2018-05-28 19:00 GMT+03:00 Andrew Lunn <and...@lunn.ch>: > > > Could you try changing "Memory split" to "3G/1G user/kernel split > > (for > > > full 1G low memory)". You should then see that the lowmem in the > > > Virtual kernel memory layout table goes from starting at > 0xc0000000 > > to > > > starting at 0xB0000000. I hope it will then not use high mem, and > > > still give you the full 1G of RAM. > > > > Someone could give newbie tips on making a bootable kernel that I > > could load from u-boot. I tried compiling one Debian's kernel > simply > > with debuild in a stretch chroot, adding VMSPLIT_3G_OPT=y to > > config.marvell under debian/, but with the vmlinuz generated I got > > "Bad Magic Number" when I tried to load it with u-boot over TFTP. > > You need to append a dtb and then encode in u-boot's uImage format. > e.g. > > cat arch/arm/boot/zImage arch/arm/boot/dts/kirkwood-ts419-6281.dtb > > x > sudo mkimage -A arm -T kernel -O linux -C none -a 0x8000 -e 0x8000 > -d x uImage
You don't need that `sudo` BTW unless uImage is in an root-only path.
