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| author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> | 2021-08-10 16:30:36 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-13 10:27:20 +0200 |
| commit | 3683b761fe3a10ad18515acd5368dd601268cfe5 (patch) | |
| tree | b374fb59a83a8ade2ff5eee281e8b3db72c26825 /drivers/nvmem/Kconfig | |
| parent | 9aaf4d2a08182b7ef6d939642a6d92564bd83b2f (diff) | |
| download | lwn-3683b761fe3a10ad18515acd5368dd601268cfe5.tar.gz lwn-3683b761fe3a10ad18515acd5368dd601268cfe5.zip | |
nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP
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>
Diffstat (limited to 'drivers/nvmem/Kconfig')
| -rw-r--r-- | drivers/nvmem/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig index dd2019006838..39854d43758b 100644 --- a/drivers/nvmem/Kconfig +++ b/drivers/nvmem/Kconfig @@ -107,6 +107,17 @@ config MTK_EFUSE This driver can also be built as a module. If so, the module will be called efuse-mtk. +config NVMEM_NINTENDO_OTP + tristate "Nintendo Wii and Wii U OTP Support" + help + This is a driver exposing the OTP of a Nintendo Wii or Wii U console. + + This memory contains common and per-console keys, signatures and + related data required to access peripherals. + + This driver can also be built as a module. If so, the module + will be called nvmem-nintendo-otp. + config QCOM_QFPROM tristate "QCOM QFPROM Support" depends on ARCH_QCOM || COMPILE_TEST |