doc/board/rockchip/rockchip.rst - u-boot - Git at Google

 .. 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
      - Rockchip Evb-RK3308 (evb-rk3308)
      - Roc-cc-RK3308 (roc-cc-rk3308)
 * rk3326
      - ODROID-GO Advance (odroid-go2)
 * rk3328
      - Rockchip Evb-RK3328 (evb-rk3328)
      - Pine64 Rock64 (rock64-rk3328)
      - Firefly-RK3328 (roc-cc-rk3328)
      - Radxa Rockpi E (rock-pi-e-rk3328)
 * rk3368
      - GeekBox (geekbox)
      - PX5 EVB (evb-px5)
      - Rockchip Sheep (sheep-rk3368)
      - Theobroma Systems RK3368-uQ7 SoM - Lion (lion-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)
      - 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 Pi 4 (rock-pi-4-rk3399)
      - Rockchip Evb-RK3399 (evb_rk3399)
      - Theobroma Systems RK3399-Q7 SoM - Puma (puma_rk3399)

 * rk3568
      - Rockchip Evb-RK3568 (evb-rk3568)

 * rk3588
      - Rockchip EVB (evb-rk3588)
      - Edgeble Neural Compute Module 6 SoM - Neu6a (neu6a-io-rk3588)
      - Radxa ROCK 5B (rock5b-rk3588)

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

 * rv1126
      - Edgeble Neural Compute Module 2 SoM - Neu2/Neu2k (neu2-io-r1126)

 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/ARM-software/arm-trusted-firmware.git
         cd arm-trusted-firmware
         make realclean
         make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399
         cd ..

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

 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=../arm-trusted-firmware/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 rk3328 boards:

 .. code-block:: bash

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

 To build rk3568 boards:

 .. code-block:: bash

         export BL31=../arm-trusted-firmware/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 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
 --------

 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 and pad_cat.

 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
 ^^^

 The SPI boot method requires the generation of idbloader.img with help of the mkimage tool.

 SPL-alone SPI boot image:

 .. code-block:: bash

         ./tools/mkimage -n rk3399 -T rkspi -d spl/u-boot-spl.bin idbloader.img

 TPL+SPL SPI boot image:

 .. code-block:: bash

         ./tools/mkimage -n rk3399 -T rkspi -d tpl/u-boot-tpl.bin:spl/u-boot-spl.bin idbloader.img

 Copy SPI boot images into SD card and boot from SD:

 .. code-block:: bash

         sf probe
         load mmc 1:1 $kernel_addr_r idbloader.img
         sf erase 0 +$filesize
         sf write $kernel_addr_r 0 ${filesize}
         load mmc 1:1 ${kernel_addr_r} u-boot.itb
         sf erase 0x60000 +$filesize
         sf write $kernel_addr_r 0x60000 ${filesize}

 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

 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
	.. 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
	- Rockchip Evb-RK3308 (evb-rk3308)
	- Roc-cc-RK3308 (roc-cc-rk3308)
	* rk3326
	- ODROID-GO Advance (odroid-go2)
	* rk3328
	- Rockchip Evb-RK3328 (evb-rk3328)
	- Pine64 Rock64 (rock64-rk3328)
	- Firefly-RK3328 (roc-cc-rk3328)
	- Radxa Rockpi E (rock-pi-e-rk3328)
	* rk3368
	- GeekBox (geekbox)
	- PX5 EVB (evb-px5)
	- Rockchip Sheep (sheep-rk3368)
	- Theobroma Systems RK3368-uQ7 SoM - Lion (lion-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)
	- 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 Pi 4 (rock-pi-4-rk3399)
	- Rockchip Evb-RK3399 (evb_rk3399)
	- Theobroma Systems RK3399-Q7 SoM - Puma (puma_rk3399)

	* rk3568
	- Rockchip Evb-RK3568 (evb-rk3568)

	* rk3588
	- Rockchip EVB (evb-rk3588)
	- Edgeble Neural Compute Module 6 SoM - Neu6a (neu6a-io-rk3588)
	- Radxa ROCK 5B (rock5b-rk3588)

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

	* rv1126
	- Edgeble Neural Compute Module 2 SoM - Neu2/Neu2k (neu2-io-r1126)

	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/ARM-software/arm-trusted-firmware.git
	cd arm-trusted-firmware
	make realclean
	make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399
	cd ..

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

	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=../arm-trusted-firmware/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 rk3328 boards:

	.. code-block:: bash

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

	To build rk3568 boards:

	.. code-block:: bash

	export BL31=../arm-trusted-firmware/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 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
	--------

	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 and pad_cat.

	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
	^^^

	The SPI boot method requires the generation of idbloader.img with help of the mkimage tool.

	SPL-alone SPI boot image:

	.. code-block:: bash

	./tools/mkimage -n rk3399 -T rkspi -d spl/u-boot-spl.bin idbloader.img

	TPL+SPL SPI boot image:

	.. code-block:: bash

	./tools/mkimage -n rk3399 -T rkspi -d tpl/u-boot-tpl.bin:spl/u-boot-spl.bin idbloader.img

	Copy SPI boot images into SD card and boot from SD:

	.. code-block:: bash

	sf probe
	load mmc 1:1 $kernel_addr_r idbloader.img
	sf erase 0 +$filesize
	sf write $kernel_addr_r 0 ${filesize}
	load mmc 1:1 ${kernel_addr_r} u-boot.itb
	sf erase 0x60000 +$filesize
	sf write $kernel_addr_r 0x60000 ${filesize}

	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

	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