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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
> 

      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] " 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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