- Switched to the binman-atf-mainline scenario with the same rkbin DDR blob
rk3399_ddr_933MHz_v1.25.bin (TPL blob, as in the old working loader). DRAM init is correct, full
4 GB visible, Linux boots.
- U-Boot and DTS updated to v2026.01-rc5. Added MDIO/PHY node and phy-handle in rk3399-kobol-
helios64.dts, fixing “mdio node is missing”. Disabled i2s2 in the U-Boot DT to avoid rockchip-
i2s ... Could not register PCM.
- boot_targets in U-Boot config shortened (mmc1, scsi0, usb0, pxe, dhcp) to avoid env_buf ... too
small; however, the last built binary still shows the warning (needs rebuild with the shortened
list or enlarging the buffer).
- Boot flow: bootstd scans SD (mmc0) and eMMC (mmc1); SD boot works even without mmc0 in
boot_targets.
- Other changes: defconfig has CONFIG_ROCKCHIP_EXTERNAL_TPL=y to use the external DDR blob.
Boots.
- fix bootorder (SD -> NVMe -> eMMC); USB disabled as nonworking with mainline still
- use the DT from rockchip64-6.18 so a single source for both u-boot and kernel
- note: the first (and only) RTL8169 used by u-boot is the port closest to board edge
- no need for vendor u-boot, as mainline can boot vendor kernel fine
- update comments with hardware pin references
- mainline boot order: NVMe -> USB -> eMMC
- boot order: NVMe -> MMC
- GMAC works
- nvme works
- `ums` et al working
- usb3 ports (on carrier board) work
- DT is copy (not symlink) from kernel DT due to NPU nodes
- vendor:
- kernel: armbian/linux-rockchip already had a DTS from jriek
- u-boot: taken from jriek (reorg'ed the defconfig)
- edge:
- kernel: taken from jriek's 6.11 wip branch
- u-boot: generic (can only boot SD/eMMC)
- the gmac works, but is connected to switch chip that is not supported by u-boot
- here I disable gmac1 for the u-boot DT
- that allows for easier booting from USB ethernet adapters
- Add mainline U-Boot support for edge branch (v2026.01-rc2)
- Add U-Boot defconfig patch for nanopi-r76s
- Fix USB3.0 Type-A host port configuration in DTS
- Enable USB OTG0 controller in host mode with power GPIO control
- Set KERNEL_TEST_TARGET to edge
- using the same DT as the rockchip64-6.16
- defconfig based on Rock5b, so we can eventually use the same fusb302 when time comes
- -u-boot.dtsi enables `ums` / `rockusb` et al using the middle usb-c port (orientation sensitive)
- enables booting from NVMe
- TODO: sd/usb/nvme/mmc boot order
- this maps copying files from dirs in the patch directory directly to the u-boot tree, without any .patch required:
- `defconfig` -> `configs` (useful for all)
- `dt_uboot` -> `arch/arm/dts` (useful for most; use for xx-u-boot.dtsi or stuff without CONFIG_OF_UPSTREAM)
- `dt_upstream_rockchip` -> `dts/upstream/src/arm64/rockchip` (useful for Rockchip boards)
- other mappings (eg `dt_upstream_xxx`) might be added later
