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Sun, 15 Nov 2026 06:35:50 -0800 (PST) Received: from [192.168.50.4] ([82.78.167.114]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-49c5d03b10fsm18730077f8f.1.2026.11.15.06.35.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 15 Nov 2026 06:35:49 -0800 (PST) Message-ID: <0ab96156-9c28-48bf-9c91-d1c9ecf90d5d@tuxon.dev> Date: Sun, 15 Nov 2026 16:35:47 +0200 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 14/16] ARM: dts: microchip: sam9x60: Add OTPC node To: Alexander Dahl Cc: Nicolas Ferre , Alexandre Belloni , Ryan Wanner , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley References: <20261105110715.2486432-1-ada@thorsis.com> <20261105110715.2486432-15-ada@thorsis.com> Content-Language: en-US From: claudiu beznea In-Reply-To: <20261105110715.2486432-15-ada@thorsis.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi, Alexander, On 11/5/26 13:06, Alexander Dahl wrote: > The One-Time Programmable (OTP) Memory Controller (OTPC) is the secure > interface between the system and the OTP memory. It also features the > Unique Product ID (UID) registers containing a unique serial number. > > See datasheet (DS60001579G) sections "7. Memories" and "23. OTP Memory > Controller (OTPC)" for reference. > > Signed-off-by: Alexander Dahl > --- > > Notes: > v4: > - Dropped new microchip,sam9x60-otpc compatible, > use microchip,sama7g5-otpc instead > > v3: > - Removed needless header include > - Removed clock-names, not part of bindings anymore, and not used by driver > > v2: > - squashed with patch adding the clock properties > > arch/arm/boot/dts/microchip/sam9x60.dtsi | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm/boot/dts/microchip/sam9x60.dtsi b/arch/arm/boot/dts/microchip/sam9x60.dtsi > index 4b777c61c1e09..996b13300ca06 100644 > --- a/arch/arm/boot/dts/microchip/sam9x60.dtsi > +++ b/arch/arm/boot/dts/microchip/sam9x60.dtsi > @@ -155,6 +155,14 @@ sdmmc1: sdio-host@90000000 { > status = "disabled"; > }; > > + otpc: efuse@eff00000 { > + compatible = "microchip,sama7g5-otpc", "syscon"; > + reg = <0xeff00000 0xec>; > + #address-cells = <1>; > + #size-cells = <1>; #address-cells, #size-cells are not needed as of now. Thank you, Claudiu