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path: root/drivers/nvmem/nintendo-otp.c
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2021-08-13nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTPEmmanuel Gil Peyrot1-0/+124
This OTP is read-only and contains various keys used by the console to decrypt, encrypt or verify various pieces of storage. Its size depends on the console, it is 128 bytes on the Wii and 1024 bytes on the Wii U (split into eight 128 bytes banks). It can be used directly by writing into one register and reading from the other one, without any additional synchronisation. This driver was written based on reversed documentation, see: https://wiiubrew.org/wiki/Hardware/OTP Tested-by: Jonathan Neuschäfer <j.ne@posteo.net> # on Wii Tested-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> # on Wii U Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20210810153036.1494-3-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>