040000 tree 6a2729f66000d931e64167c50b0f6a11d5903398	aarch32
040000 tree 3a368cc740ef7285389f0c9a1ca0226ec056f25f	aarch64
100644 blob d0ffebc3ae7b12d042e2969ecdebacd358c6665f	bl2u.ld.S
100644 blob b4d763433963edc90508aec0499c93f52621db77	bl2u.mk
100644 blob a7e3fb916ef85d3eb50c5aafa36fa43990c96630	bl2u_main.c