[PATCH 0/4] nvmem: nintendo-otp: Add new driver for the Wii and WiiÂ U OTP
Emmanuel Gil Peyrot
linkmauve at linkmauve.fr
Wed May 19 19:45:42 AEST 2021
The OTP is a read-only memory area which contains various keys and
signatures used 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 series has only been tested on the Wii U so far, using the
downstream 4.19 branch from linux-wiiu, but it should also work on
the Wii on mainline.
Emmanuel Gil Peyrot (4):
nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP
dt-bindings: nintendo-otp: Document the Wii and Wii U OTP support
powerpc: wii.dts: Expose the OTP on this platform
powerpc: wii_defconfig: Enable OTP by default
.../bindings/nvmem/nintendo-otp.txt | 14 +++
arch/powerpc/boot/dts/wii.dts | 5 +
arch/powerpc/configs/wii_defconfig | 1 +
drivers/nvmem/Kconfig | 11 ++
drivers/nvmem/Makefile | 2 +
drivers/nvmem/nintendo-otp.c | 115 ++++++++++++++++++
6 files changed, 148 insertions(+)
create mode 100644 Documentation/devicetree/bindings/nvmem/nintendo-otp.txt
create mode 100644 drivers/nvmem/nintendo-otp.c
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