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https://github.com/AsahiLinux/u-boot
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The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between an USB3.0 Type A connector and a M.2 Key M slot. The PHY driving these differential lines is shared between the USB3.0 controller and the PCIe Controller, thus only a single controller can use it. This adds this dynamic switching right before booting Linux and the configuration steps in the boards documentation. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> [narmstrong: fixed warning by replacing min() by min_t()]
157 lines
4.8 KiB
ReStructuredText
157 lines
4.8 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
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U-Boot for Khadas VIM3L
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=======================
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Khadas VIM3L is a single board computer manufactured by Shenzhen Wesion
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Technology Co., Ltd. with the following specifications:
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- Amlogic S905D3 Arm Cortex-A55 quad-core SoC
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- 2GB 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 VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential
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lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between
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an USB3.0 Type A connector and a M.2 Key M slot.
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The PHY driving these differential lines is shared between
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the USB3.0 controller and the PCIe Controller, thus only
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a single controller can use it.
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To setup for PCIe, run the following commands from U-Boot:
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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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Then power-cycle the board.
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To set back to USB3.0, run the following commands from U-Boot:
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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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Then power-cycle the board.
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U-Boot compilation
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------------------
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$ export CROSS_COMPILE=aarch64-none-elf-
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$ make khadas-vim3l_defconfig
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$ make
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Image creation
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--------------
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Amlogic doesn't provide sources for the firmware and for tools needed
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to create the bootloader image, so it is necessary to obtain them from
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the git tree 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=vim3l-u-boot
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$ git clone --depth 1 \
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https://github.com/khadas/u-boot.git -b khadas-vims-v2015.01 \
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$DIR
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$ cd vim3l-u-boot
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$ make kvim3l_defconfig
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$ make
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$ export UBOOTDIR=$PWD
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Go back to mainline U-Boot source tree then :
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.. code-block:: bash
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$ mkdir fip
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$ cp $UBOOTDIR/build/scp_task/bl301.bin fip/
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$ cp $UBOOTDIR/build/board/khadas/kvim3l/firmware/acs.bin fip/
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$ cp $UBOOTDIR/fip/g12a/bl2.bin fip/
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$ cp $UBOOTDIR/fip/g12a/bl30.bin fip/
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$ cp $UBOOTDIR/fip/g12a/bl31.img fip/
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$ cp $UBOOTDIR/fip/g12a/ddr3_1d.fw fip/
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$ cp $UBOOTDIR/fip/g12a/ddr4_1d.fw fip/
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$ cp $UBOOTDIR/fip/g12a/ddr4_2d.fw fip/
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$ cp $UBOOTDIR/fip/g12a/diag_lpddr4.fw fip/
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$ cp $UBOOTDIR/fip/g12a/lpddr3_1d.fw fip/
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$ cp $UBOOTDIR/fip/g12a/lpddr4_1d.fw fip/
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$ cp $UBOOTDIR/fip/g12a/lpddr4_2d.fw fip/
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$ cp $UBOOTDIR/fip/g12a/piei.fw fip/
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$ cp $UBOOTDIR/fip/g12a/aml_ddr.fw fip/
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$ cp u-boot.bin fip/bl33.bin
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$ sh 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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$ sh 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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$ $UBOOTDIR/fip/g12a/aml_encrypt_g12a --bl30sig --input fip/bl30_new.bin \
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--output fip/bl30_new.bin.g12a.enc \
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--level v3
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$ $UBOOTDIR/fip/g12a/aml_encrypt_g12a --bl3sig --input fip/bl30_new.bin.g12a.enc \
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--output fip/bl30_new.bin.enc \
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--level v3 --type bl30
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$ $UBOOTDIR/fip/g12a/aml_encrypt_g12a --bl3sig --input fip/bl31.img \
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--output fip/bl31.img.enc \
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--level v3 --type bl31
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$ $UBOOTDIR/fip/g12a/aml_encrypt_g12a --bl3sig --input fip/bl33.bin --compress lz4 \
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--output fip/bl33.bin.enc \
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--level v3 --type bl33 --compress lz4
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$ $UBOOTDIR/fip/g12a/aml_encrypt_g12a --bl2sig --input fip/bl2_new.bin \
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--output fip/bl2.n.bin.sig
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$ $UBOOTDIR/fip/g12a/aml_encrypt_g12a --bootmk \
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--output fip/u-boot.bin \
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--bl2 fip/bl2.n.bin.sig \
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--bl30 fip/bl30_new.bin.enc \
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--bl31 fip/bl31.img.enc \
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--bl33 fip/bl33.bin.enc \
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--ddrfw1 fip/ddr4_1d.fw \
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--ddrfw2 fip/ddr4_2d.fw \
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--ddrfw3 fip/ddr3_1d.fw \
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--ddrfw4 fip/piei.fw \
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--ddrfw5 fip/lpddr4_1d.fw \
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--ddrfw6 fip/lpddr4_2d.fw \
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--ddrfw7 fip/diag_lpddr4.fw \
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--ddrfw8 fip/aml_ddr.fw \
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--ddrfw9 fip/lpddr3_1d.fw \
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--level v3
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and then write the image to SD with:
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.. code-block:: bash
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$ DEV=/dev/your_sd_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=444
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