Patches

OpenWrt comes with a large number of kernel patches for 2.6.32, however only a few of them are required to get a boot:

In target/linux/generic/patches-2.6.32

060-block2mtd_init.patch

065-rootfs_split.patch

066-block2mtd_probe.patch

071-redboot_boardconfig.patch

999-use_preinit_as_init.patch

In target/linux/rdc/patches-2.6.32

012-export_erase_write.patch

100-rdc_boards.patch

With only these patches against a vanilla 2.6.32.20 kernel it's possible to at least get a boot from flash, although many things won't work properly.