[U-Boot] [PATCH v4 4/4] ARM64: evb-rk3399: add a README for this board setup

[Simon Glass]

On 18 July 2016 at 02:46, Kever Yang <kever.yang at rock-chips.com> wrote:
> Add a README to guide people flash the ATF and U-Boot
> with rockchip tools to bring up to board.
>
> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
> ---
>
> Changes in v4: None
> Changes in v3: None
> Changes in v2:
> fix a binary path error
>
>  board/rockchip/evb_rk3399/README | 73 ++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 73 insertions(+)
>  create mode 100644 board/rockchip/evb_rk3399/README

Looks good, but please see nits below.

>
> diff --git a/board/rockchip/evb_rk3399/README b/board/rockchip/evb_rk3399/README
> new file mode 100644
> index 0000000..af4e45e
> --- /dev/null
> +++ b/board/rockchip/evb_rk3399/README
> @@ -0,0 +1,73 @@
> +Introduction
> +============
> +
> +RK3399 key feature we might use in u-boot:

features

> +* CPU: ARMv8 64bit Big-Little architecture,
> +*      Big: dual-core Cortex-A72
> +*      Little: quad-core Cortex-A53
> +* IRAM: 200KB
> +* DRAM: 4GB-128MB dual-channel
> +* eMMC: support eMMC 5.0/5.1, suport HS400, HS200, DDR50
> +* SD/MMC: support SD 3.0, MMC 4.51
> +* USB: USB3.0 typc-C port *2 with dwc3 controller
> +*      USB2.0 EHCI host port *2
> +* Display: RGB/HDMI/DP/MIPI/EDP
> +
> +evb feature:
> +* regulator: pwm regulator for CPU B/L
> +* PMIC: rk808
> +* debug console: UART2
> +
> +In order to support Arm Trust Firmware, we need to use the

 Arm Trust Firmware (ATF)

> +miniloader from rockchip which:
> +* do DRAM init
> +* load&verify ATF image

load and verify ATF image

> +* load&verify u-boot image

load and verify U-Boot image

> +
> +Here is the step by step to boot to U-boot on rk3399.

step-by-step

Please use 'U-Boot' consistently - check below also.

> +
> +Get the Source and prebuild binary
> +==================================
> +
> +  > mkdir ~/evb_rk3399
> +  > cd ~/evb_rk3399
> +  > git clone https://github.com/ARM-software/arm-trusted-firmware.git
> +  > git clone https://github.com/rockchip-linux/rkbin
> +  > git clone https://github.com/rockchip-linux/rkflashtool
> +
> +Compile the ATF
> +===============
> +
> +  > cd arm-trusted-firmware
> +  > make realclean
> +  > make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31
> +
> +Compile the u-boot
> +==================
> +
> +  > cd ../u-boot
> +  > make CROSS_COMPILE=aarch64-linux-gnu- evb-rk3399_defconfig all
> +
> +Compile the rkflashtool
> +=======================
> +
> +  > cd ../rkflashtool
> +  > make
> +
> +Package the image for miniloader
> +================================
> +  > cd ..
> +  > cp arm-trusted-firmware/build/rk3399/release/bl31.bin rkbin/rk33
> +  > ./rkbin/tools/trust_merger rkbin/tools/RK3399TRUST.ini
> +  > ./rkbin/tools/loaderimage --pack --uboot u-boot/u-boot-dtb.bin uboot.img
> +  > mkdir image
> +  > mv trust.img ./image/
> +  > mv uboot.img ./image/rk3399evb-uboot.bin
> +
> +Flash the image
> +===============
> +Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
> +
> +  > ./rkflashtool/rkflashloader rk3399evb
> +
> +You should be able to get U-boot log message in console/UART2 now.
> --
> 1.9.1
>
>
Regards,
Simon