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1 .. SPDX-License-Identifier: GPL-2.0
23 --------
26 C2 Interface used for in-system programming of micro controllers.
28 By using this driver you can reprogram the in-system flash without EC2
30 where the micro controller is connected via special GPIOs pins.
33 ----------
38 - AN127: FLASH Programming via the C2 Interface at
41 - C2 Specification at
45 banging) designed to enable in-system programming, debugging, and
46 boundary-scan testing on low pin-count Silicon Labs devices. Currently
51 ----------------
54 info or read/write in-system flash::
65 # echo 1 > /sys/class/c2port/c2port0/access
75 However, for security reasons, the in-system flash access in not
78 # echo 1 > /sys/class/c2port/c2port0/flash_access
86 # echo 1 > /sys/class/c2port/c2port0/flash_erase
94 # echo 1 > /sys/class/c2port/c2port0/reset