From mboxrd@z Thu Jan 1 00:00:00 1970 From: stefan.wahren@i2se.com (Stefan Wahren) Date: Wed, 21 Nov 2018 14:11:40 +0100 Subject: [PATCH 1/5] dt-bindings: nvmem: add binding for Raspberry Pi OTP In-Reply-To: <1542805904-6446-1-git-send-email-stefan.wahren@i2se.com> References: <1542805904-6446-1-git-send-email-stefan.wahren@i2se.com> Message-ID: <1542805904-6446-2-git-send-email-stefan.wahren@i2se.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch adds the devicetree binding for Raspberry Pi customer OTP driver. Signed-off-by: Stefan Wahren --- .../nvmem/raspberrypi,bcm2835-customer-otp.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/raspberrypi,bcm2835-customer-otp.txt diff --git a/Documentation/devicetree/bindings/nvmem/raspberrypi,bcm2835-customer-otp.txt b/Documentation/devicetree/bindings/nvmem/raspberrypi,bcm2835-customer-otp.txt new file mode 100644 index 0000000..041ff17 --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/raspberrypi,bcm2835-customer-otp.txt @@ -0,0 +1,22 @@ +Customer OTP Memory for Raspberry Pi + +The VC4 firmware exposes a mailbox interface that allows the ARM core +to access the customer part of the OTP memory. + +The OTP node must be a child node of the Raspberry Pi firmware node. + +Required properties : +- compatible : Should be "raspberrypi,bcm2835-customer-otp" + +See nvmem.txt for more information. + +Example: + +firmware: firmware-rpi { + compatible = "raspberrypi,bcm2835-firmware"; + mboxes = <&mailbox>; + + customer_otp: otp { + compatible = "raspberrypi,bcm2835-customer-otp"; + }; +}; -- 2.7.4