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[79.139.163.57]) by smtp.gmail.com with ESMTPSA id n11sm14738166qtk.92.2021.10.06.15.47.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Oct 2021 15:47:46 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Krzysztof Kozlowski , Rob Herring Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v5 3/9] dt-bindings: memory: lpddr2: Add revision-id properties Date: Thu, 7 Oct 2021 01:46:53 +0300 Message-Id: <20211006224659.21434-4-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211006224659.21434-1-digetx@gmail.com> References: <20211006224659.21434-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add optional revision-id standard LPDDR2 properties which will help to identify memory chip. Signed-off-by: Dmitry Osipenko Reviewed-by: Rob Herring --- .../memory-controllers/ddr/jedec,lpddr2.yaml | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml index f931fe910ce5..fe573750577e 100644 --- a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml @@ -24,6 +24,18 @@ properties: - enum: - jedec,lpddr2-nvm + revision-id1: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 255 + description: | + Revision 1 value of SDRAM chip. Obtained from device datasheet. + + revision-id2: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 255 + description: | + Revision 2 value of SDRAM chip. Obtained from device datasheet. + density: $ref: /schemas/types.yaml#/definitions/uint32 description: | @@ -151,6 +163,8 @@ examples: compatible = "elpida,ECB240ABACN", "jedec,lpddr2-s4"; density = <2048>; io-width = <32>; + revision-id1 = <1>; + revision-id2 = <0>; tRPab-min-tck = <3>; tRCD-min-tck = <3>;