[PATCH v2 4/5] arm: Add LibreTech CC support based on Meson GXL family

Fri Nov 24 14:35:47 PST 2017

Hi Neil,

On 22 November 2017 at 06:25, Neil Armstrong <narmstrong at baylibre.com> wrote:
> This adds platform code for the Libre Computer CC "Le Potato" board based on a
> Meson GXL (S905X) SoC with the Meson GXL configuration.
>
> This initial submission supports UART, MMC/SDCard and Ethernet with the
> Internal RMII PHY.
>
> The meson-gxl-s905x-libretech-cc.dts is synchronised from the linux 4.13
> stable tree as of 4.13.8.
>
> Signed-off-by: Neil Armstrong <narmstrong at baylibre.com>
> ---
>  arch/arm/dts/Makefile                         |   3 +-
>  arch/arm/dts/meson-gxl-s905x-libretech-cc.dts | 171 ++++++++++++++++++++++++++
>  arch/arm/mach-meson/Kconfig                   |   9 ++
>  board/amlogic/libretech-cc/Kconfig            |  12 ++
>  board/amlogic/libretech-cc/MAINTAINERS        |   6 +
>  board/amlogic/libretech-cc/Makefile           |   8 ++
>  board/amlogic/libretech-cc/README             |  96 +++++++++++++++
>  board/amlogic/libretech-cc/libretech-cc.c     |  52 ++++++++
>  configs/libretech-cc_defconfig                |  35 ++++++
>  include/configs/libretech-cc.h                |  21 ++++
>  10 files changed, 412 insertions(+), 1 deletion(-)
>  create mode 100644 arch/arm/dts/meson-gxl-s905x-libretech-cc.dts
>  create mode 100644 board/amlogic/libretech-cc/Kconfig
>  create mode 100644 board/amlogic/libretech-cc/MAINTAINERS
>  create mode 100644 board/amlogic/libretech-cc/Makefile
>  create mode 100644 board/amlogic/libretech-cc/README
>  create mode 100644 board/amlogic/libretech-cc/libretech-cc.c
>  create mode 100644 configs/libretech-cc_defconfig
>  create mode 100644 include/configs/libretech-cc.h
>

Reviewed-by: Simon Glass <sjg at chromium.org>

[..]

> new file mode 100644
> index 0000000..d0e3bbb
> --- /dev/null
> +++ b/board/amlogic/libretech-cc/Makefile
> @@ -0,0 +1,8 @@
> +#
> +# (C) Copyright 2016 BayLibre, SAS
> +# Author: Neil Armstrong <narmstrong at baylibre.com>
> +#
> +# SPDX-License-Identifier:     GPL-2.0+
> +#
> +
> +obj-y  := libretech-cc.o
> diff --git a/board/amlogic/libretech-cc/README b/board/amlogic/libretech-cc/README
> new file mode 100644
> index 0000000..8b38fff
> --- /dev/null
> +++ b/board/amlogic/libretech-cc/README
> @@ -0,0 +1,96 @@
> +U-Boot for LibreTech CC
> +=======================
> +
> +LibreTech CC is a single board computer manufactured by Libre Technology
> +with the following specifications:
> +
> + - Amlogic S905X ARM Cortex-A53 quad-core SoC @ 2GHz
> + - ARM Mali 450 GPU
> + - 2GB DDR3 SDRAM
> + - Gigabit Ethernet
> + - HDMI 2.0 4K/60Hz display
> + - 40-pin GPIO header
> + - 4 x USB 2.0 Host, 1 x USB OTG
> + - eMMC, microSD
> + - Infrared receiver
> +
> +Schematics are available on the manufacturer website.
> +
> +Currently the U-Boot port supports the following devices:
> + - serial
> + - eMMC, microSD
> + - Ethernet
> +
> +u-boot compilation

U-Boot

> +==================
> +
> + > export ARCH=arm
> + > export CROSS_COMPILE=aarch64-none-elf-
> + > make libretech-cc_defconfig
> + > make
> +
> +Image creation
> +==============
> +
> +Amlogic doesn't provide sources for the firmware and for tools needed
> +to create the bootloader image, so it is necessary to obtain them from
> +the git tree published by the board vendor:
> +
> + > wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
> + > wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
> + > tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
> + > tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
> + > export PATH=$PWD/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux/bin:$PWD/gcc-linaro-arm-none-eabi-4.8-2013.11_linux/bin:$PATH
> + > git clone https://github.com/BayLibre/u-boot.git -b libretech-cc amlogic-u-boot
> + > cd amlogic-u-boot
> + > make libretech_cc_defconfig
> + > make
> + > export FIPDIR=$PWD/fip
> +
> +Go back to mainline U-Boot source tree then :
> + > mkdir fip
> +
> + > cp $FIPDIR/gxl/bl2.bin fip/
> + > cp $FIPDIR/gxl/acs.bin fip/
> + > cp $FIPDIR/gxl/bl21.bin fip/
> + > cp $FIPDIR/gxl/bl30.bin fip/
> + > cp $FIPDIR/gxl/bl301.bin fip/
> + > cp $FIPDIR/gxl/bl31.img fip/
> + > cp u-boot.bin fip/bl33.bin
> +
> + > $FIPDIR/blx_fix.sh \
> +       fip/bl30.bin \
> +       fip/zero_tmp \
> +       fip/bl30_zero.bin \
> +       fip/bl301.bin \
> +       fip/bl301_zero.bin \
> +       fip/bl30_new.bin \
> +       bl30
> +
> + > $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
> +
> + > $FIPDIR/blx_fix.sh \
> +       fip/bl2_acs.bin \
> +       fip/zero_tmp \
> +       fip/bl2_zero.bin \
> +       fip/bl21.bin \
> +       fip/bl21_zero.bin \
> +       fip/bl2_new.bin \
> +       bl2
> +
> + > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin
> + > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl31.img
> + > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl33.bin
> + > $FIPDIR/gxl/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig
> + > $FIPDIR/gxl/aml_encrypt_gxl --bootmk \
> +               --output fip/u-boot.bin \
> +               --bl2 fip/bl2.n.bin.sig \
> +               --bl30 fip/bl30_new.bin.enc \
> +               --bl31 fip/bl31.img.enc \
> +               --bl33 fip/bl33.bin.enc
> +
> +and then write the image to SD with:
> +
> + > DEV=/dev/your_sd_device
> + > dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
> + > dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=444

I wonder if the above could be done with binman? It is designed for
putting images together.

Regards,
Simon