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[194.187.74.233]) by smtp.gmail.com with ESMTPSA id a10sm396571lfu.263.2021.03.05.10.32.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Mar 2021 10:32:51 -0800 (PST) From: =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= To: Srinivas Kandagatla , Rob Herring Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, Florian Fainelli , Vivek Unune , bcm-kernel-feedback-list@broadcom.com, linux-kernel@vger.kernel.org, =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= Subject: [PATCH V2 1/2] dt-bindings: nvmem: add Broadcom's NVRAM Date: Fri, 5 Mar 2021 19:32:35 +0100 Message-Id: <20210305183236.11784-1-zajec5@gmail.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: Rafał Miłecki Broadcom's NVRAM structure contains device data and can be accessed using I/O mapping. Signed-off-by: Rafał Miłecki Reviewed-by: Rob Herring --- V2: Use Broadcom's NVRAM specific binding. Generic "nvmem-iomap" binding didn't make much sense. Thanks Srinivas! --- .../devicetree/bindings/nvmem/brcm,nvram.yaml | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml diff --git a/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml b/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml new file mode 100644 index 000000000000..58ff6b0bdb1a --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/nvmem/brcm,nvram.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom's NVRAM + +description: | + Broadcom's NVRAM is a structure containing device specific environment + variables. It is used for storing device configuration, booting parameters + and calibration data. + + NVRAM can be accessed on Broadcom BCM47xx MIPS and Northstar ARM Cortex-A9 + devices usiong I/O mapped memory. + +maintainers: + - Rafał Miłecki + +allOf: + - $ref: "nvmem.yaml#" + +properties: + compatible: + const: brcm,nvram + +unevaluatedProperties: false + +examples: + - | + nvram@1eff0000 { + compatible = "brcm,nvram"; + reg = <0x1eff0000 0x10000>; + };