Add workaround for ARM Cortex-A53 erratum 855873
-rw-r--r-- 3156 .checkpatch.conf
-rw-r--r-- 477 .gitignore
-rw-r--r-- 24424 Makefile
-rw-r--r-- 153 acknowledgements.md
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drwxr-xr-x - bl2
drwxr-xr-x - bl2u
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drwxr-xr-x - common
-rw-r--r-- 5816 contributing.md
-rw-r--r-- 1421 dco.txt
drwxr-xr-x - docs
drwxr-xr-x - drivers
drwxr-xr-x - fdts
drwxr-xr-x - include
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-rw-r--r-- 1495 license.md
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-rw-r--r-- 8641 readme.md
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drwxr-xr-x - tools