U-Boot

.. SPDX-License-Identifier: GPL-2.0+
.. Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>

ROCKCHIP
========

About this
----------

This document describes the information about Rockchip supported boards
and it's usage steps.

Rockchip boards
---------------

Rockchip is a SoC solutions provider for tablets & PCs, streaming media
TV boxes, AI audio & vision, IoT hardware.

A wide range of Rockchip SoCs with associated boards are supported in
mainline U-Boot.

List of mainline supported Rockchip boards:

* px30
     - Rockchip Evb-PX30 (evb-px30)
     - Engicam PX30.Core C.TOUCH 2.0 (px30-core-ctouch2-px30)
     - Engicam PX30.Core C.TOUCH 2.0 10.1 (px30-core-ctouch2-of10-px30)
     - Engicam PX30.Core EDIMM2.2 Starter Kit (px30-core-edimm2.2-px30)
     - Firefly Core-PX30-JD4 (firefly-px30)
     - Theobroma Systems PX30-µQ7 SoM - Ringneck (ringneck-px30)
* rk3036
     - Rockchip Evb-RK3036 (evb-rk3036)
     - Kylin (kylin_rk3036)
* rk3066
     - Rikomagic MK808 (mk808)
* rk3128
     - Rockchip Evb-RK3128 (evb-rk3128)
* rk3188
     - Radxa Rock (rock)
* rk3229
     - Rockchip Evb-RK3229 (evb-rk3229)
* rk3288
     - Rockchip Evb-RK3288 (evb-rk3288)
     - Firefly-RK3288 (firefly-rk3288)
     - MQmaker MiQi (miqi-rk3288)
     - Phytec RK3288 PCM-947 (phycore-rk3288)
     - PopMetal-RK3288 (popmetal-rk3288)
     - Radxa Rock 2 Square (rock2)
     - Tinker-RK3288 (tinker-rk3288)
     - Google Jerry (chromebook_jerry)
     - Google Mickey (chromebook_mickey)
     - Google Minnie (chromebook_minnie)
     - Google Speedy (chromebook_speedy)
     - Amarula Vyasa-RK3288 (vyasa-rk3288)
* rk3308
     - Radxa ROCK Pi S (rock-pi-s-rk3308)
     - Radxa ROCK S0 (rock-s0-rk3308)
     - Rockchip Evb-RK3308 (evb-rk3308)
     - Roc-cc-RK3308 (roc-cc-rk3308)
* rk3326
     - ODROID-GO Advance (odroid-go2)
* rk3328
     - Rockchip Evb-RK3328 (evb-rk3328)
     - Firefly ROC-RK3328-CC (roc-cc-rk3328)
     - FriendlyElec NanoPi R2C (nanopi-r2c-rk3328)
     - FriendlyElec NanoPi R2C Plus (nanopi-r2c-plus-rk3328)
     - FriendlyElec NanoPi R2S (nanopi-r2s-rk3328)
     - FriendlyElec NanoPi R2S Plus (nanopi-r2s-plus-rk3328)
     - Generic RK3328 (generic-rk3328)
     - Pine64 Rock64 (rock64-rk3328)
     - Radxa ROCK Pi E (rock-pi-e-rk3328)
     - Xunlong Orange Pi R1 Plus (orangepi-r1-plus-rk3328)
     - Xunlong Orange Pi R1 Plus LTS (orangepi-r1-plus-lts-rk3328)
* rk3368
     - GeekBox (geekbox)
     - PX5 EVB (evb-px5)
     - Rockchip Sheep (sheep-rk3368)
* rk3399
     - 96boards RK3399 Ficus (ficus-rk3399)
     - 96boards Rock960 (rock960-rk3399)
     - Firefly-RK3399 (firefly_rk3399)
     - Firefly ROC-RK3399-PC
     - FriendlyElec NanoPC-T4 (nanopc-t4-rk3399)
     - FriendlyElec NanoPi M4 (nanopi-m4-rk3399)
     - FriendlyElec NanoPi M4B (nanopi-m4b-rk3399)
     - FriendlyARM NanoPi NEO4 (nanopi-neo4-rk3399)
     - Generic RK3399 (generic-rk3399)
     - Google Bob (chromebook_bob)
     - Google Kevin (chromebook_kevin)
     - Khadas Edge (khadas-edge-rk3399)
     - Khadas Edge-Captain (khadas-edge-captain-rk3399)
     - Khadas Edge-V (hadas-edge-v-rk3399)
     - Orange Pi RK3399 (orangepi-rk3399)
     - Pine64 RockPro64 (rockpro64-rk3399)
     - Radxa ROCK 4C+ (rock-4c-plus-rk3399)
     - Radxa ROCK 4SE (rock-4se-rk3399)
     - Radxa ROCK Pi 4A/B/A+/B+ (rock-pi-4-rk3399)
     - Radxa ROCK Pi 4C (rock-pi-4c-rk3399)
     - Rockchip Evb-RK3399 (evb_rk3399)
     - Theobroma Systems RK3399-Q7 SoM - Puma (puma_rk3399)

* rk3528
     - ArmSoM Sige1 (sige1-rk3528)
     - Generic RK3528 (generic-rk3528)
     - Radxa E20C (radxa-e20c-rk3528)
     - Radxa ROCK 2A/2F (rock-2-rk3528)

* rk3566
     - Anbernic RGxx3 (anbernic-rgxx3-rk3566)
     - FriendlyElec NanoPi R3S (nanopi-r3s-rk3566)
     - Hardkernel ODROID-M1S (odroid-m1s-rk3566)
     - LCKFB TaishanPi (lckfb-tspi-rk3566)
     - Pine64 PineTab2 (pinetab2-rk3566)
     - Pine64 Quartz64-A Board (quartz64-a-rk3566)
     - Pine64 Quartz64-B Board (quartz64-b-rk3566)
     - Pine64 SOQuartz on Blade (soquartz-blade-rk3566)
     - Pine64 SOQuartz on CM4-IO (soquartz-cm4-rk3566)
     - Pine64 SOQuartz on Model A (soquartz-model-a-rk3566)
     - Powkiddy X55 (powkiddy-x55-rk3566)
     - Radxa CM3 IO Board (radxa-cm3-io-rk3566)
     - Radxa ROCK 3C (rock-3c-rk3566)
     - Radxa ZERO 3W/3E (radxa-zero-3-rk3566)
     - Xunlong Orange Pi 3B (orangepi-3b-rk3566)

* rk3568
     - Rockchip Evb-RK3568 (evb-rk3568)
     - Banana Pi BPI-R2 Pro (bpi-r2-pro-rk3568)
     - EmbedFire LubanCat 2 (lubancat-2-rk3568)
     - FriendlyElec NanoPi R5C (nanopi-r5c-rk3568)
     - FriendlyElec NanoPi R5S (nanopi-r5s-rk3568)
     - Generic RK3566/RK3568 (generic-rk3568)
     - Hardkernel ODROID-M1 (odroid-m1-rk3568)
     - Lunzn FastRhino R66S (fastrhino-r66s-rk3568)
     - QNAP TS-433 (qnap-ts433-rk3568)
     - Radxa E25 Carrier Board (radxa-e25-rk3568)
     - Radxa ROCK 3A (rock-3a-rk3568)
     - Radxa ROCK 3B (rock-3b-rk3568)

* rk3576
     - ArmSoM Sige5 (sige5-rk3576)
     - Firefly ROC-RK3576-PC (roc-pc-rk3576)
     - FriendlyElec NanoPi M5 (nanopi-m5-rk3576)
     - Generic RK3576 (generic-rk3576)
     - Luckfox Omni3576 (omni3576-rk3576)
     - Radxa ROCK 4D (rock-4d-rk3576)

* rk3588
     - ArmSoM Sige7 (sige7-rk3588)
     - Rockchip EVB (evb-rk3588)
     - Edgeble Neural Compute Module 6A SoM - Neu6a (neu6a-io-rk3588)
     - Edgeble Neural Compute Module 6B SoM - Neu6b (neu6b-io-rk3588)
     - FriendlyElec CM3588 NAS (cm3588-nas-rk3588)
     - FriendlyElec NanoPC-T6 (nanopc-t6-rk3588)
     - FriendlyElec NanoPi R6C (nanopi-r6c-rk3588s)
     - FriendlyElec NanoPi R6S (nanopi-r6s-rk3588s)
     - GameForce Ace (gameforce-ace-rk3588s)
     - Generic RK3588S/RK3588 (generic-rk3588)
     - Hardkernel ODROID-M2 (odroid-m2-rk3588s)
     - Indiedroid Nova (nova-rk3588s)
     - Khadas Edge2 (khadas-edge2-rk3588s)
     - MNT Reform2 (mnt-reform2-rk3588)
     - Pine64 QuartzPro64 (quartzpro64-rk3588)
     - Radxa ROCK 5 ITX (rock-5-itx-rk3588)
     - Radxa ROCK 5A (rock5a-rk3588s)
     - Radxa ROCK 5B (rock5b-rk3588)
     - Radxa ROCK 5C (rock-5c-rk3588s)
     - Rockchip Toybrick TB-RK3588X (toybrick-rk3588)
     - Theobroma Systems RK3588-SBC Jaguar (jaguar-rk3588)
     - Theobroma Systems SOM-RK3588-Q7 - Tiger (tiger-rk3588)
     - Turing Machines RK1 (turing-rk1-rk3588)
     - Xunlong Orange Pi 5 (orangepi-5-rk3588s)
     - Xunlong Orange Pi 5 Max (orangepi-5-max-rk3588)
     - Xunlong Orange Pi 5 Plus (orangepi-5-plus-rk3588)
     - Xunlong Orange Pi 5 Ultra (orangepi-5-ultra-rk3588)
     - Yanyi Tech CoolPi 4 Model B (coolpi-4b-rk3588s)
     - Yanyi Tech CoolPi CM5 EVB (coolpi-cm5-evb-rk3588)
     - Yanyi Tech CoolPi CM5 GenBook (coolpi-cm5-genbook-rk3588)

* rv1108
     - Rockchip Evb-rv1108 (evb-rv1108)
     - Elgin-R1 (elgin-rv1108)

* rv1126
     - Edgeble Neural Compute Module 2 SoM - Neu2/Neu2k (neu2-io-r1126)
     - Itead Sonoff iHost (sonoff-ihost-rv1126)

Building
--------

TF-A
^^^^

TF-A is required when building ARM64 Rockchip SoCs images.

To build TF-A:

.. code-block:: bash

        git clone --depth 1 https://github.com/TrustedFirmware-A/trusted-firmware-a.git
        cd trusted-firmware-a
        make realclean
        make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399
        cd ..

Specify the PLAT= with desired Rockchip platform to build TF-A for.

For SoCs whose TF-A code is not available as open source, use BL31 binary provided by Rockchip:

.. code-block:: bash

        git clone --depth 1 https://github.com/rockchip-linux/rkbin

TPL
^^^

For some SoCs U-Boot sources lack of support to inizialize DRAM.
In these cases, to get a fully functional image following :ref:`PackageWithTPLandSPL`, use DDR binary provided by Rockchip rkbin repository as ROCKCHIP_TPL when building U-Boot.
Otherwise, follow :ref:`PackageWithRockchipMiniloader`. 

U-Boot
^^^^^^

.. code-block:: bash

        git clone --depth 1 https://source.denx.de/u-boot/u-boot.git
        cd u-boot

To build px30 boards:

.. code-block:: bash

        export BL31=../trusted-firmware-a/build/px30/release/bl31/bl31.elf
        make evb-px30_defconfig
        make CROSS_COMPILE=aarch64-linux-gnu-

To build rk3066 boards:

.. code-block:: bash

        make mk808_defconfig
        make CROSS_COMPILE=arm-linux-gnueabihf-

To build rk3288 boards:

.. code-block:: bash

        make evb-rk3288_defconfig
        make CROSS_COMPILE=arm-linux-gnueabihf-

To build rk3308 boards:

.. code-block:: bash

        export BL31=../rkbin/bin/rk33/rk3308_bl31_v2.26.elf
        export ROCKCHIP_TPL=../rkbin/bin/rk33/rk3308_ddr_589MHz_uartX_mY_v2.07.bin
        make evb-rk3308_defconfig
        make CROSS_COMPILE=aarch64-linux-gnu-

To build rk3328 boards:

.. code-block:: bash

        export BL31=../trusted-firmware-a/build/rk3328/release/bl31/bl31.elf
        make evb-rk3328_defconfig
        make CROSS_COMPILE=aarch64-linux-gnu-

To build rk3368 boards:

.. code-block:: bash

        export BL31=../trusted-firmware-a/build/rk3368/release/bl31/bl31.elf
        make evb-px5_defconfig
        make CROSS_COMPILE=aarch64-linux-gnu-

To build rk3399 boards:

.. code-block:: bash

        export BL31=../trusted-firmware-a/build/rk3399/release/bl31/bl31.elf
        make evb-rk3399_defconfig
        make CROSS_COMPILE=aarch64-linux-gnu-

To build rk3528 boards:

.. code-block:: bash

        export BL31=../rkbin/bin/rk35/rk3528_bl31_v1.18.elf
        export ROCKCHIP_TPL=../rkbin/bin/rk35/rk3528_ddr_1056MHz_v1.10.bin
        make generic-rk3528_defconfig
        make CROSS_COMPILE=aarch64-linux-gnu-

To build rk3568 boards:

.. code-block:: bash

        export BL31=../trusted-firmware-a/build/rk3568/release/bl31/bl31.elf
        [or]export BL31=../rkbin/bin/rk35/rk3568_bl31_v1.34.elf
        export ROCKCHIP_TPL=../rkbin/bin/rk35/rk3568_ddr_1560MHz_v1.13.bin
        make evb-rk3568_defconfig
        make CROSS_COMPILE=aarch64-linux-gnu-

To build rk3576 boards:

.. code-block:: bash

        export BL31=../rkbin/bin/rk35/rk3576_bl31_v1.04.elf
        export ROCKCHIP_TPL=../rkbin/bin/rk35/rk3576_ddr_lp4_2112MHz_lp5_2736MHz_v1.03.bin
        make roc-pc-rk3576_defconfig
        make CROSS_COMPILE=aarch64-linux-gnu-

To build rk3588 boards:

.. code-block:: bash

        export BL31=../rkbin/bin/rk35/rk3588_bl31_v1.33.elf
        export ROCKCHIP_TPL=../rkbin/bin/rk35/rk3588_ddr_lp4_2112MHz_lp5_2736MHz_v1.09.bin
        make evb-rk3588_defconfig
        make CROSS_COMPILE=aarch64-linux-gnu-

Flashing
--------

.. _`PackageWithTPLandSPL`:

1. Package the image with U-Boot TPL/SPL
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

SD Card
"""""""

All Rockchip platforms (except rk3128 which doesn't use SPL) are now
supporting a single boot image using binman.

To write an image that boots from a SD card (assumed to be /dev/sda):

.. code-block:: bash

        sudo dd if=u-boot-rockchip.bin of=/dev/sda seek=64
        sync

eMMC
""""

eMMC flash would probe on mmc0 in most of the Rockchip platforms.

Create GPT partition layout as defined in $partitions:

.. code-block:: bash

        mmc dev 0
        gpt write mmc 0 $partitions

Connect the USB-OTG cable between the host and a target device.

Launch fastboot on the target with:

.. code-block:: bash

        fastboot 0

Upon a successful gadget connection the host shows the USB device with:

.. code-block:: bash

        lsusb
        # Bus 001 Device 020: ID 2207:330c Fuzhou Rockchip Electronics Company RK3399 in Mask ROM mode

Program the flash with:

.. code-block:: bash

        sudo fastboot -i 0x2207 flash loader1 idbloader.img
        sudo fastboot -i 0x2207 flash loader2 u-boot.itb

Note:

For Rockchip 32-bit platforms the U-Boot proper image
is u-boot-dtb.img

SPI
"""

Write u-boot-rockchip-spi.bin to offset 0 of SPI flash.

Copy u-boot-rockchip-spi.bin into SD card and boot from SD:

.. code-block:: bash

        sf probe
        load mmc 1:1 $kernel_addr_r u-boot-rockchip-spi.bin
        sf update $fileaddr 0 $filesize

.. _`PackageWithRockchipMiniloader`:

2. Package the image with Rockchip miniloader
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Image package with Rockchip miniloader requires rkbin [1].

.. code-block:: bash

        cd ..
        git clone --depth 1 https://github.com/rockchip-linux/rkbin

Create idbloader.img:

.. code-block:: bash

        cd u-boot
        ./tools/mkimage -n px30 -T rksd -d ../rkbin/bin/rk33/px30_ddr_333MHz_v1.16.bin idbloader.img
        cat ../rkbin/bin/rk33/px30_miniloader_v1.31.bin >> idbloader.img
        sudo dd if=idbloader.img of=/dev/sda seek=64

Create trust.img:

.. code-block:: bash

        cd ../rkbin
        ./tools/trust_merger RKTRUST/PX30TRUST.ini
        sudo dd if=trust.img of=/dev/sda seek=24576

Create uboot.img [2]:

.. code-block:: bash

        cd ../u-boot
        ../rkbin/tools/loaderimage --pack --uboot u-boot-dtb.bin uboot.img 0x200000
        sudo dd if=uboot.img of=/dev/sda seek=16384

Note:

1. rkbin binaries are regularly updated, so it would be recommended to use the latest version.
2. 0x200000 is a load address and is an option for some platforms.

3. Package the RK3066 image with U-Boot TPL/SPL on NAND
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Unlike later SoC models the rk3066 BootROM doesn't have SDMMC support.
If all other boot options fail then it enters into a BootROM mode on the USB OTG port.
This method loads TPL/SPL on NAND with U-Boot and kernel on SD card.

SD Card
"""""""

U-Boot expects a GPT partition map and a boot directory structure with files on the SD card.

.. code-block:: none

        Partition Map for MMC device 0  --   Partition Type: EFI
        Part     Start LBA         End LBA           Name
        1        0x00000040        0x00001f7f        "loader1"
        2        0x00004000        0x00005fff        "loader2"
        3        0x00006000        0x00007fff        "trust"
        4        0x00008000        0x0003ffff        "boot"
        5        0x00040000        0x00ed7fde        "rootfs"

Make sure boot and esp flag are set for the boot partition.
Loader1 partition is not used by RK3066.

Boot partition:

.. code-block:: none

        extlinux
          extlinux.conf

        zImage
        rk3066a-mk808.dtb

To write a U-Boot image to the SD card (assumed to be /dev/sda):

.. code-block:: bash

        sudo dd if=u-boot-dtb.img of=/dev/sda seek=16384
        sync

NAND
""""

Bring device in BootROM mode:

If bricked and no BootROM mode shows up then connect pin 8 and 9 of the NAND flash
with a needle while reconnecting to the USB OTG port to a PC.

Show connected devices with:

.. code-block:: bash

        lsusb
        # Bus 001 Device 004: ID 2207:300a Fuzhou Rockchip Electronics Company RK3066 in Mask ROM mode


Create NAND image:

Size of SPL and TPL must be aligned to 2kb.

Program with commands in a bash script ./flash.sh:

.. code-block:: bash

        #!/bin/sh

        printf "RK30" | dd conv=notrunc bs=4 count=1 of=u-boot-tpl.bin
        truncate -s %2048 u-boot-tpl.bin
        truncate -s %2048 u-boot-spl.bin
        ../tools/boot_merger --verbose config-flash.ini
        ../tools/upgrade_tool ul ./RK30xxLoader_uboot.bin

config-flash.ini:

.. code-block:: none

        [CHIP_NAME]
        NAME=RK30
        [VERSION]
        MAJOR=2
        MINOR=21
        [CODE471_OPTION]
        NUM=1
        Path1=30_LPDDR2_300MHz_DD.bin
        [CODE472_OPTION]
        NUM=1
        Path1=rk30usbplug.bin
        [LOADER_OPTION]
        NUM=2
        LOADER1=FlashData
        LOADER2=FlashBoot
        FlashData=u-boot-tpl.bin
        FlashBoot=u-boot-spl.bin
        [OUTPUT]
        PATH=RK30xxLoader_uboot.bin

Verified Boot for Embedded (VBE)
--------------------------------

VBE is supported on rk3399 at present, with SDRAM being set up in SPL. The full
A/B/recovery flow is supported in U-Boot.

To build this, use the rk3399-generic board, setting CONFIG_OF_LIST to the list
of boards you want to support. All boards must use the same SDRAM type.

VBE uses internal SRAM (IRAM) for the TPL, VPL and early SPL phases. The stack
stop is near the top of this (0xff8eff00) with the 256-byte bloblist immediately
following.

TODO
----

- Add Rockchip idbloader image building
- Add Rockchip TPL image building
- Document SPI flash boot
- Add missing SoC's with it boards list

.. Jagan Teki <jagan@amarulasolutions.com>
.. Wednesday 28 October 2020 06:47:26 PM IST