Replaces the old vendored BDK with the one from hekate v6.5.5 (CTCaer's
2025/2026 refactors: sdmmc, SE, minerva v1.6, display, heap, return
value homogenisation). OmniNX additions re-applied on top:
bq24193_charger_connected() and jc_clear_input(); s_vprintf now ships
with the BDK.
Ported to the new API:
- sd_mount(), sdmmc_storage_* and ini_parse() now return 0 on success.
The installer checked ini_parse() != 1, which would have made it miss
manifest.ini and run every install as a clean install.
- SD helpers come from bdk/storage/sd.c (source/nx_sd.* removed),
ffsystem.c from the BDK, diskio.c/ffconf.h from hekate (ffconf keeps
the sd:/ volume prefix).
- minerva_init() needs the minerva storage; the installer still drops
to 800 MHz afterwards.
- Payload launch follows hekate (sd_file_read, hw_deinit); coreboot
path removed upstream.
- Stack moved to 0x96000000: the old 0x83100000 is inside the new heap.
- GUI/USB/compression parts of the BDK are not built.
niklascfw
1b4a81239b