From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>,
Rob Herring <robh+dt@kernel.org>,
linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org
Cc: "Ash Logan" <ash@heyquark.com>,
"Jonathan Neuschäfer" <j.ne@posteo.net>,
"Michael Ellerman" <mpe@ellerman.id.au>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Paul Mackerras" <paulus@samba.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 0/5] nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP
Date: Tue, 10 Aug 2021 11:57:19 +0100 [thread overview]
Message-ID: <cd854a84-7fd3-38bd-5a28-9306867a990f@linaro.org> (raw)
In-Reply-To: <20210801073822.12452-1-linkmauve@linkmauve.fr>
On 01/08/2021 08:38, Emmanuel Gil Peyrot wrote:
> 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 been tested on both the Wii U (using my downstream
> master-wiiu branch[1]), as well as on the Wii on mainline.
>
> [1] https://gitlab.com/linkmauve/linux-wiiu/-/commits/master-wiiu
>
> Changes since v1:
> - Fixed the commit messages so they can be accepted by other email
> servers, sorry about that.
>
> Changes since v2:
> - Switched the dt binding documentation to YAML.
> - Used more obvious register arithmetic, and tested that gcc (at -O1 and
> above) outputs the exact same rlwinm instructions for them.
> - Use more #defines to make the code easier to read.
> - Include some links to the reversed documentation.
> - Avoid overlapping dt regions by changing the existing control@d800100
> node to end before the OTP registers, with some bigger dt refactoring
> left for a future series.
>
> Changes since v3:
> - Relicense the dt-binding documentation under GPLv2-only or
> BSD-2-clauses.
>
> Emmanuel Gil Peyrot (5):
> 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
Applied 1/5 and 2/5 to nvmem next,
rest of the patches should go via powerpc dts tree.
thanks,
--srini
> powerpc: wii.dts: Reduce the size of the control area
> powerpc: wii.dts: Expose the OTP on this platform
> powerpc: wii_defconfig: Enable OTP by default
>
> .../bindings/nvmem/nintendo-otp.yaml | 44 +++++++
> arch/powerpc/boot/dts/wii.dts | 13 +-
> arch/powerpc/configs/wii_defconfig | 1 +
> drivers/nvmem/Kconfig | 11 ++
> drivers/nvmem/Makefile | 2 +
> drivers/nvmem/nintendo-otp.c | 124 ++++++++++++++++++
> 6 files changed, 194 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml
> create mode 100644 drivers/nvmem/nintendo-otp.c
>
prev parent reply other threads:[~2021-08-10 10:57 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-19 9:50 [PATCH v2 0/4] nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP Emmanuel Gil Peyrot
2021-05-19 9:50 ` [PATCH v2 1/4] " Emmanuel Gil Peyrot
2021-06-26 23:24 ` Jonathan Neuschäfer
2021-05-19 9:50 ` [PATCH v2 2/4] dt-bindings: nintendo-otp: Document the Wii and Wii U OTP support Emmanuel Gil Peyrot
2021-05-21 1:37 ` Rob Herring
2021-06-26 21:27 ` Jonathan Neuschäfer
2021-05-19 9:50 ` [PATCH v2 3/4] powerpc: wii.dts: Expose the OTP on this platform Emmanuel Gil Peyrot
2021-06-26 23:34 ` Jonathan Neuschäfer
2021-07-01 19:56 ` Emmanuel Gil Peyrot
2021-07-02 8:56 ` Jonathan Neuschäfer
2021-07-03 15:53 ` Segher Boessenkool
2021-05-19 9:50 ` [PATCH v2 4/4] powerpc: wii_defconfig: Enable OTP by default Emmanuel Gil Peyrot
2021-06-26 23:38 ` Jonathan Neuschäfer
2021-07-01 22:57 ` [PATCH v3 0/5] nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP Emmanuel Gil Peyrot
2021-07-01 22:57 ` [PATCH v3 1/5] " Emmanuel Gil Peyrot
2021-07-01 22:57 ` [PATCH v3 2/5] dt-bindings: nintendo-otp: Document the Wii and Wii U OTP support Emmanuel Gil Peyrot
2021-07-14 22:51 ` Rob Herring
2021-07-01 22:57 ` [PATCH v3 3/5] powerpc: wii.dts: Reduce the size of the control area Emmanuel Gil Peyrot
2021-07-01 22:57 ` [PATCH v3 4/5] powerpc: wii.dts: Expose the OTP on this platform Emmanuel Gil Peyrot
2021-07-01 22:57 ` [PATCH v3 5/5] powerpc: wii_defconfig: Enable OTP by default Emmanuel Gil Peyrot
2021-08-01 7:38 ` [PATCH v4 0/5] nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP Emmanuel Gil Peyrot
2021-08-01 7:38 ` [PATCH v4 1/5] " Emmanuel Gil Peyrot
2021-08-01 7:38 ` [PATCH v4 2/5] dt-bindings: nintendo-otp: Document the Wii and Wii U OTP support Emmanuel Gil Peyrot
2021-08-06 21:07 ` Rob Herring
2021-08-01 7:38 ` [PATCH v4 3/5] powerpc: wii.dts: Reduce the size of the control area Emmanuel Gil Peyrot
2021-08-01 7:38 ` [PATCH v4 4/5] powerpc: wii.dts: Expose the OTP on this platform Emmanuel Gil Peyrot
2021-08-01 7:38 ` [PATCH v4 5/5] powerpc: wii_defconfig: Enable OTP by default Emmanuel Gil Peyrot
2021-08-10 10:57 ` Srinivas Kandagatla [this message]
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