NanoPi-M4 boot issue

[Trevor Woerner]

cc'ing some maintainers...

On Sat 2020-02-15 @ 01:16:36 AM, Trevor Woerner wrote:
> Hi,
> 
> I'm trying to build an image for a NanoPi-M4 but it is not able to get out of
> TPL. The U-Boot build seems to be constructing the idbloader.img properly, but
> the board is failing to boot. Note that this is an original NanoPi-M4 (i.e.
> V1) and not the NanoPi-M4V2.
> 
> From the build log:
> 	...
> 	cat tpl/u-boot-tpl-nodtb.bin tpl/u-boot-tpl.dtb > tpl/u-boot-tpl-dtb.bin
> 	cp tpl/u-boot-tpl-dtb.bin tpl/u-boot-tpl.bin
> 	./tools/mkimage -n "rk3399" -T rksd -d tpl/u-boot-tpl.bin tpl/u-boot-tpl-rockchip.bin
> 	...
> 	cat spl/u-boot-spl-nodtb.bin spl/u-boot-spl.dtb > spl/u-boot-spl-dtb.bin
> 	cp spl/u-boot-spl-dtb.bin spl/u-boot-spl.bin
> 	cat tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin > idbloader.img
> 
> What I get on the console is:
> 
> 	U-Boot TPL 2020.04-rc2 (Feb 15 2020 - 05:36:59)
> 	sdram_init: LPDDR3 - 933MHz failed!
> 	rk3399_dmc_init DRAM init failed -22
> 	Missing DTB
> 
> It's strange that it says the DTB is missing clearly shows the DTB versions of
> TPL and SPL being used to create the idbloader.img.
> 
> In any case, is anyone building and booting U-Boot master for NanoPi-M4?
> 
> Best regards,
> 	Trevor