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/freebsd/sys/contrib/device-tree/Bindings/ddr/
H A Dlpddr2.txt1 * LPDDR2 SDRAM memories compliant to JEDEC JESD209-2
4 - compatible : Should be one of - "jedec,lpddr2-nvm", "jedec,lpddr2-s2",
5 "jedec,lpddr2-s4"
7 "ti,jedec-lpddr2-s2" should be listed if the memory part is LPDDR2-S2 type
9 "ti,jedec-lpddr2-s4" should be listed if the memory part is LPDDR2-S4 type
11 "ti,jedec-lpddr2-nvm" should be listed if the memory part is LPDDR2-NVM type
13 - density : <u32> representing density in Mb (Mega bits)
15 - io-width : <u32> representing bus width. Possible values are 8, 16, and 32
21 These values shall be obtained from the device data-sheet.
22 - tRRD-min-tck
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/freebsd/sys/contrib/device-tree/Bindings/memory-controllers/ddr/
H A Djedec,lpddr2.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr2.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LPDDR2 SDRAM compliant to JEDEC JESD209-2
10 - Krzysztof Kozlowski <krzk@kernel.org>
13 - $ref: jedec,lpddr-props.yaml#
18 - items:
19 - enum:
20 - elpida,ECB240ABACN
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/freebsd/sys/contrib/device-tree/src/arm/ti/omap/
H A Delpida_ecb240abacn.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 compatible = "elpida,ECB240ABACN","jedec,lpddr2-s4";
10 io-width = <32>;
12 tRPab-min-tck = <3>;
13 tRCD-min-tck = <3>;
14 tWR-min-tck = <3>;
15 tRASmin-min-tck = <3>;
16 tRRD-min-tck = <2>;
17 tWTR-min-tck = <2>;
18 tXP-min-tck = <2>;
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