NXP Semiconductors Layerscape LS1028A BSP - Page 29

3. Add new machine support in Linux kernel, take LSDK-18.12 for example:
$ cd packages/linux/linux
$ git checkout LSDK-18.12-V4.14 -b LSDK-18.12-V4.14-LS1043AXX
Now, you can add kernel patches and submit the patches in this branch for the new machine, then make a tag as below.
$ git tag LSDK-18.12-V4.14-LS1043AXX
Assume that you have added a new ls1043axx.dts in packages/linux/linux/arch/arm64/boot/dts directory, run as below to
build kernel image for new LS1043AXX
$ flex-builder -c linux:linux:LSDK-18.12-V4.14-LS1043AXX
4. Add configs in flexbuild for new machine.
a. Add ls1043axx node in configs/linux/linux_arm64.its.
b. Add CONFIG_MACHINE_LS1043AXX=y in configs/build_lsdk.cfg.
c. Set linux_repo_tag to LSDK-18.12-V4.14-LS1043AXX and set u_boot_repo_tag to LSDK-18.12-LS1043AXX in
configs/build_lsdk.cfg.
d. Set BUILD_DUAL_KERNEL to n in configs/build_lsdk.cfg if user doesn't need the second version of linux.
e. Optionally, user can use different memory layout from default settings by modifying them in configs/board/common/
memorylayout.cfg.
f. Add manifest for new machine as below
$ mkdir configs/board/ls1043axx
$ cp configs/board/ls1043ardb/manifest configs/board/ls1043axx.
g. Update the settings in configs/board/ls1043axx/manifest on demand.
h. Generally, user can reuse the settings of rcw/fman/qe/eth-phy used for existing ls1043ardb if those components are
same for new ls1043axx, otherwise user needs to add new support in packages/firmware/rcw.
i. Run flex-builder -i mklinux -a arm64 to generate lsdk_linux_arm64_tiny.itb image.
j. Run flex-builder -i mkfw -m ls1043ardb -b sd to generate the shared ppa/rcw/fman/qe/eth-phy images for new
ls1043axx.
k. Run flex-builder -i mkfw -m ls1043axx -b sd to generate firmware_ls1043axx_uboot_sdboot.img.
l. User can boot the new lsdk_linux_arm64_tiny.itb from U-Boot prompt duringdebugging stage on LS1043AXX
machine.
=> tftp a0000000 lsdk_linux_arm64_tiny.itb
=> bootm a0000000#ls1043axx
5. Build all other images for new custom machine with Ubuntu userland if required as below:
$ flex-builder -i mkrfs -a arm64
$ flex-builder -c apps -a arm64
$ flex-builder -i mkbootpartition -a arm64
$ flex-builder -i merge-component -a arm64
$ flex-builder -i compressrfs -a arm64
How to build LS1028A BSP with Flexbuild
Layerscape LS1028A BSP User Guide, Rev. 0.3, 04/2019
NXP Semiconductors
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