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https://github.com/AsahiLinux/u-boot
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Improve documentation. Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> Link: https://lore.kernel.org/r/20230320114609.930145-11-christianshewitt@gmail.com [narmstrong: fixed doc build] Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
162 lines
6.1 KiB
ReStructuredText
162 lines
6.1 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
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U-Boot for Khadas VIM3 (A311D)
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==============================
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Khadas VIM3 is a Single Board Computer manufactured by Shenzhen Wesion Technology Co. Ltd
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with the following specifications:
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- Amlogic A311D Arm Cortex-A53 dual-core + Cortex-A73 quad-core SoC
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- 4GB LPDDR4 SDRAM
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- Gigabit Ethernet
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- HDMI 2.1 display
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- 40-pin GPIO header
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- 1 x USB 3.0 Host, 1 x USB 2.0 Host
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- eMMC, microSD
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- M.2
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- Infrared receiver
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Schematics are available on the manufacturer website.
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PCIe Setup
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----------
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The on-board MCU can mux the PCIe/USB3.0 shared differential lines using a FUSB340TMX USB
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3.1 SuperSpeed Data Switch between a USB3.0 Type-A connector and an M.2 Key M slot. The
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PHY driving these differential lines is shared between the USB3.0 controller and the PCIe
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Controller, thus only a single controller can use it.
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To setup for PCIe run the following commands from U-Boot then power-cycle the board:
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.. code-block:: none
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i2c dev i2c@5000
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i2c mw 0x18 0x33 1
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To revert to USB3.0 run the following commands from U-Boot then power-cycle the board:
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.. code-block:: none
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i2c dev i2c@5000
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i2c mw 0x18 0x33 0
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U-Boot Compilation
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------------------
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.. code-block:: bash
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$ export CROSS_COMPILE=aarch64-none-elf-
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$ make khadas-vim3_defconfig
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$ make
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U-Boot Signing with Pre-Built FIP repo
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--------------------------------------
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.. code-block:: bash
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$ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1
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$ cd amlogic-boot-fip
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$ mkdir my-output-dir
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$ ./build-fip.sh khadas-vim3 /path/to/u-boot/u-boot.bin my-output-dir
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U-Boot Manual Signing
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---------------------
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Amlogic does not provide sources for the firmware and tools needed to create a bootloader
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image so it is necessary to obtain binaries from sources published by the board vendor:
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.. code-block:: bash
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$ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
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$ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
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$ tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
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$ tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
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$ 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:$PATH
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$ DIR=vim3-u-boot
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$ git clone --depth 1 https://github.com/khadas/u-boot.git -b khadas-vims-v2015.01 $DIR
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$ cd vim3-u-boot
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$ make kvim3_defconfig
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$ make CROSS_COMPILE=aarch64-none-elf-
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$ export UBOOTDIR=$PWD
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Go back to the mainline U-Boot source tree then:
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.. code-block:: bash
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$ mkdir fip
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$ wget https://github.com/BayLibre/u-boot/releases/download/v2017.11-libretech-cc/blx_fix_g12a.sh -O fip/blx_fix.sh
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$ cp $UBOOTDIR/build/scp_task/bl301.bin fip/
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$ cp $UBOOTDIR/build/board/khadas/kvim3/firmware/acs.bin fip/
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$ cp $UBOOTDIR/fip/g12b/bl2.bin fip/
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$ cp $UBOOTDIR/fip/g12b/bl30.bin fip/
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$ cp $UBOOTDIR/fip/g12b/bl31.img fip/
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$ cp $UBOOTDIR/fip/g12b/ddr3_1d.fw fip/
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$ cp $UBOOTDIR/fip/g12b/ddr4_1d.fw fip/
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$ cp $UBOOTDIR/fip/g12b/ddr4_2d.fw fip/
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$ cp $UBOOTDIR/fip/g12b/diag_lpddr4.fw fip/
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$ cp $UBOOTDIR/fip/g12b/lpddr3_1d.fw fip/
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$ cp $UBOOTDIR/fip/g12b/lpddr4_1d.fw fip/
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$ cp $UBOOTDIR/fip/g12b/lpddr4_2d.fw fip/
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$ cp $UBOOTDIR/fip/g12b/piei.fw fip/
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$ cp $UBOOTDIR/fip/g12b/aml_ddr.fw fip/
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$ cp u-boot.bin fip/bl33.bin
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$ bash fip/blx_fix.sh \
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fip/bl30.bin \
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fip/zero_tmp \
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fip/bl30_zero.bin \
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fip/bl301.bin \
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fip/bl301_zero.bin \
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fip/bl30_new.bin \
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bl30
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$ bash fip/blx_fix.sh \
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fip/bl2.bin \
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fip/zero_tmp \
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fip/bl2_zero.bin \
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fip/acs.bin \
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fip/bl21_zero.bin \
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fip/bl2_new.bin \
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bl2
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl30sig --input fip/bl30_new.bin \
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--output fip/bl30_new.bin.g12a.enc \
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--level v3
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl3sig --input fip/bl30_new.bin.g12a.enc \
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--output fip/bl30_new.bin.enc \
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--level v3 --type bl30
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl3sig --input fip/bl31.img \
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--output fip/bl31.img.enc \
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--level v3 --type bl31
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl3sig --input fip/bl33.bin --compress lz4 \
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--output fip/bl33.bin.enc \
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--level v3 --type bl33 --compress lz4
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl2sig --input fip/bl2_new.bin \
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--output fip/bl2.n.bin.sig
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bootmk \
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--output fip/u-boot.bin \
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--bl2 fip/bl2.n.bin.sig \
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--bl30 fip/bl30_new.bin.enc \
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--bl31 fip/bl31.img.enc \
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--bl33 fip/bl33.bin.enc \
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--ddrfw1 fip/ddr4_1d.fw \
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--ddrfw2 fip/ddr4_2d.fw \
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--ddrfw3 fip/ddr3_1d.fw \
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--ddrfw4 fip/piei.fw \
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--ddrfw5 fip/lpddr4_1d.fw \
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--ddrfw6 fip/lpddr4_2d.fw \
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--ddrfw7 fip/diag_lpddr4.fw \
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--ddrfw8 fip/aml_ddr.fw \
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--ddrfw9 fip/lpddr3_1d.fw \
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--level v3
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Then write U-Boot to SD or eMMC with:
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.. code-block:: bash
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$ DEV=/dev/boot_device
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$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
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$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440
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