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authorLinus Torvalds <[email protected]>2022-03-23 18:23:13 -0700
committerLinus Torvalds <[email protected]>2022-03-23 18:23:13 -0700
commitb4bc93bd76d4da32600795cd323c971f00a2e788 (patch)
tree8aebc8ae647d83ffa091c89bb164e7c24b0edfa9 /Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3-timings.txt
parentbaaa68a9796ef2cadfe5caaf4c730412eda0f31c (diff)
parent339ac71b233ee9ab5036be3abca0e5df793b5f64 (diff)
Merge tag 'arm-drivers-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM driver updates from Arnd Bergmann: "There are a few separately maintained driver subsystems that we merge through the SoC tree, notable changes are: - Memory controller updates, mainly for Tegra and Mediatek SoCs, and clarifications for the memory controller DT bindings - SCMI firmware interface updates, in particular a new transport based on OPTEE and support for atomic operations. - Cleanups to the TEE subsystem, refactoring its memory management For SoC specific drivers without a separate subsystem, changes include - Smaller updates and fixes for TI, AT91/SAMA5, Qualcomm and NXP Layerscape SoCs. - Driver support for Microchip SAMA5D29, Tesla FSD, Renesas RZ/G2L, and Qualcomm SM8450. - Better power management on Mediatek MT81xx, NXP i.MX8MQ and older NVIDIA Tegra chips" * tag 'arm-drivers-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (154 commits) ARM: spear: fix typos in comments soc/microchip: fix invalid free in mpfs_sys_controller_delete soc: s4: Add support for power domains controller dt-bindings: power: add Amlogic s4 power domains bindings ARM: at91: add support in soc driver for new SAMA5D29 soc: mediatek: mmsys: add sw0_rst_offset in mmsys driver data dt-bindings: memory: renesas,rpc-if: Document RZ/V2L SoC memory: emif: check the pointer temp in get_device_details() memory: emif: Add check for setup_interrupts dt-bindings: arm: mediatek: mmsys: add support for MT8186 dt-bindings: mediatek: add compatible for MT8186 pwrap soc: mediatek: pwrap: add pwrap driver for MT8186 SoC soc: mediatek: mmsys: add mmsys reset control for MT8186 soc: mediatek: mtk-infracfg: Disable ACP on MT8192 soc: ti: k3-socinfo: Add AM62x JTAG ID soc: mediatek: add MTK mutex support for MT8186 soc: mediatek: mmsys: add mt8186 mmsys routing table soc: mediatek: pm-domains: Add support for mt8186 dt-bindings: power: Add MT8186 power domains soc: mediatek: pm-domains: Add support for mt8195 ...
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diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3-timings.txt b/Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3-timings.txt
deleted file mode 100644
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-* AC timing parameters of LPDDR3 memories for a given speed-bin.
-
-The structures are based on LPDDR2 and extended where needed.
-
-Required properties:
-- compatible : Should be "jedec,lpddr3-timings"
-- min-freq : minimum DDR clock frequency for the speed-bin. Type is <u32>
-- reg : maximum DDR clock frequency for the speed-bin. Type is <u32>
-
-Optional properties:
-
-The following properties represent AC timing parameters from the memory
-data-sheet of the device for a given speed-bin. All these properties are
-of type <u32> and the default unit is ps (pico seconds).
-- tRFC
-- tRRD
-- tRPab
-- tRPpb
-- tRCD
-- tRC
-- tRAS
-- tWTR
-- tWR
-- tRTP
-- tW2W-C2C
-- tR2R-C2C
-- tFAW
-- tXSR
-- tXP
-- tCKE
-- tCKESR
-- tMRD
-
-Example:
-
-timings_samsung_K3QF2F20DB_800mhz: lpddr3-timings@800000000 {
- compatible = "jedec,lpddr3-timings";
- reg = <800000000>; /* workaround: it shows max-freq */
- min-freq = <100000000>;
- tRFC = <65000>;
- tRRD = <6000>;
- tRPab = <12000>;
- tRPpb = <12000>;
- tRCD = <10000>;
- tRC = <33750>;
- tRAS = <23000>;
- tWTR = <3750>;
- tWR = <7500>;
- tRTP = <3750>;
- tW2W-C2C = <0>;
- tR2R-C2C = <0>;
- tFAW = <25000>;
- tXSR = <70000>;
- tXP = <3750>;
- tCKE = <3750>;
- tCKESR = <3750>;
- tMRD = <7000>;
-};