Re: u-boot-nanopi-r5c [Was: Re: 14-BETA5 panic on rk3566]

On Dec 18, 2023, at 10:22, Harry <[email protected]> wrote:
> 
> On 12/15/23 16:56, Emmanuel Vadot wrote:
>> U-Boot also doesn't support the DRAM controller so we also need an
>> external blob from rkbin.
>> That's the main reason I haven't done ports for u-boot on rk356x so
>> one have to compile u-boot themselve.
>> It can be simply done like any other u-boot targets and only needs two
>> env variable :
>> export BL31=/path/to/rkbin/bin/rk35/rk3568_bl31_v1.43.elf
>> export
>> ROCKCHIP_TPL=/path/to/rkbin/bin/rk35/rk3568_ddr_1560MHz_v1.18.bin
> 
> Thanks! I'm happy that - besides the ddr_CLOCK - it matches what I came up with so far :-)
> I'm trying to understand what happens with the help of this:
> http://opensource.rock-chips.com/wiki_Boot_option
> The attached diff (updates sysutils/linux-rkbin (g20190719->g20230726), sysutils/u-boot-master (2020.07->2023.10) and adds sysutils/u-boot-nanopi-r5c)
> allows me to build u-boot, supposedly supporting R5C(rk3568).
> After putting these onto SD-card with
> dd if=/.chroot/build.FreeBSD-14/usr/local/share/u-boot/u-boot-nanopi-r5c/idbloader.img of=/dev/da1 seek=8 bs=4k conv=sync
> dd if=/.chroot/build.FreeBSD-14/usr/local/share/u-boot/u-boot-nanopi-r5c/u-boot.itb of=/dev/da1 seek=2048 bs=4k conv=sync
> my nanopi-R5C boots from eMMC instead of SD.
> I downloaded a NANOPI-R5C_EFI.itb elsewhere.
> I can get the TianoCore port booting...
> But I'm missing the part, where ubldr, the FreeBSD post-u-boot-loader, is supposed to take over - and how...
> I simply created a freebsd-ufs partition and put /boot along with a loader.conf onto it, which works using the foreign TianoCore port, but not my newly created u-boot.
> 
> What am I missung after dd'ing?
> Any hints appreciated!

FYI: ubldr is no longer part of the standard/typical way of booting these days,
at least for armv7 (and aarch64):

https://cgit.freebsd.org/ports/commit/sysutils/u-boot-master?id=0d6e5081eb00

reports (back in mid-2021):

QUOTE
author Emmanuel Vadot <[email protected]> 2021-05-11 18:27:14 +0000
committer Emmanuel Vadot <[email protected]> 2021-05-11 20:22:54 +0000
commit 0d6e5081eb0080c4703f1c5cc69c34f38d9149b7 (patch)
. . .
sysutils/u-boot-*: Remove ubldr support
We have been using loader.efi on armv7 for a long time now. Remove support for booting with ubldr and the needed patches that were never upstreamed. While here add CONFIG_EFI_GRUB_ARM32_WORKAROUND=y in the Fragment as it's needed to have the cache flushed for us when loader.efi is started.
END QUOTE

Any documentation indicating sny ubldr involvement likely predates that
change.

> -harry
> 
> P.S.: sysutils/u-boot-nanopi-r5c/Makefile is wrong in the diff attached, the I used the commented nanopi-r5c-rk3568_defconfig! evb-rk3568_defconfig is a leftover...
> 
> <FE-r5c_ports.diff.xz>



===
Mark Millard
marklmi at yahoo.com