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doc: boards: amlogic: update documentation for ODROID-N2/N2+
Improve documentation. Notably mention the ODROID-N2+ and the option to use FDTDIR not FDT for automatic device-tree selection. Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> Link: https://lore.kernel.org/r/20230320114609.930145-19-christianshewitt@gmail.com [narmstrong: fixed doc build] Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
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Christian Hewitt
Neil Armstrong
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9626b00dc1
commit
eb92a00d1f
@ -1,10 +1,10 @@
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.. SPDX-License-Identifier: GPL-2.0+
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U-Boot for ODROID-N2
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====================
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U-Boot for ODROID-N2/N2+ (S922X)
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================================
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ODROID-N2 is a single board computer manufactured by Hardkernel
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Co. Ltd with the following specifications:
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ODROID-N2 and ODROID-N2+ are a Single Board Computers manufactured by Hardkernel with the
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following specifications:
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- Amlogic S922X ARM Cortex-A53 dual-core + Cortex-A73 quad-core SoC
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- 4GB DDR4 SDRAM
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@ -15,9 +15,13 @@ Co. Ltd with the following specifications:
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- eMMC, microSD
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- Infrared receiver
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Schematics are available on the manufacturer website.
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ODROID-N2+ uses Rev-C silicon allowing higher CPU opp-points. U-Boot contains logic to
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read the model detail from SARADC and select the correct device-tree file if FDTDIR is
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used instead of an FDT reference to a specfic device-tree.
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U-Boot compilation
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Schematics are available on the manufacturer website: https://wiki.odroid.com
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U-Boot Compilation
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------------------
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.. code-block:: bash
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@ -26,14 +30,21 @@ U-Boot compilation
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$ make odroid-n2_defconfig
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$ make
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Image creation
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--------------
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U-Boot Signing with Pre-Built FIP repo
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--------------------------------------
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For simplified usage, pleaser refer to :doc:`pre-generated-fip` with codename `odroid-n2` or `odroid-n2-plus`
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.. code-block:: bash
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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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$ 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 odroid-n2 /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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@ -44,16 +55,14 @@ the git tree published by the board vendor:
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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=odroid-n2
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$ git clone --depth 1 \
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https://github.com/hardkernel/u-boot.git -b odroidn2-v2015.01 \
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$DIR
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$ git clone --depth 1 https://github.com/hardkernel/u-boot.git -b odroidn2-v2015.01 $DIR
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$ cd odroid-n2
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$ make odroidn2_defconfig
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$ make
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$ export UBOOTDIR=$PWD
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Go back to mainline U-Boot source tree then :
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Go back to the mainline U-Boot source tree then:
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.. code-block:: bash
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@ -76,57 +85,57 @@ the git tree published by the board vendor:
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$ 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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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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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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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl30sig --input fip/bl30_new.bin \
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--output fip/bl30_new.bin.g12a.enc \
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--level v3
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--output fip/bl30_new.bin.g12a.enc \
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--level v3
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl3sig --input fip/bl30_new.bin.g12a.enc \
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--output fip/bl30_new.bin.enc \
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--level v3 --type bl30
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--output fip/bl30_new.bin.enc \
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--level v3 --type bl30
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl3sig --input fip/bl31.img \
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--output fip/bl31.img.enc \
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--level v3 --type bl31
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--output fip/bl31.img.enc \
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--level v3 --type bl31
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl3sig --input fip/bl33.bin --compress lz4 \
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--output fip/bl33.bin.enc \
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--level v3 --type bl33 --compress lz4
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--output fip/bl33.bin.enc \
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--level v3 --type bl33 --compress lz4
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$ $UBOOTDIR/fip/g12b/aml_encrypt_g12b --bl2sig --input fip/bl2_new.bin \
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--output fip/bl2.n.bin.sig
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--output fip/bl2.n.bin.sig
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$ $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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--level v3
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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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--level v3
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and then write the image to SD with:
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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/your_sd_device
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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=$DEV conv=fsync,notrunc bs=1 count=444
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$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440
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