Still not possible apply patch :-(
root@debian:/coreboot/build/seabios# patch < patch.txt
patching file floppy.c
Hunk #1 FAILED at 183.
Hunk #2 FAILED at 219.
Hunk #3 FAILED at 276.
Hunk #4 FAILED at 292.
Hunk #5 FAILED at 305.
Hunk #6 FAILED at 324.
Hunk #7 FAILED at 356.
Hunk #8 FAILED at 383.
Hunk #9 FAILED at 416.
Hunk #10 FAILED at 428.
10 out of 10 hunks FAILED -- saving rejects to file floppy.c.rej