diff options
| author | Linus Torvalds <[email protected]> | 2022-03-23 18:23:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2022-03-23 18:23:13 -0700 |
| commit | b4bc93bd76d4da32600795cd323c971f00a2e788 (patch) | |
| tree | 8aebc8ae647d83ffa091c89bb164e7c24b0edfa9 /Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3.txt | |
| parent | baaa68a9796ef2cadfe5caaf4c730412eda0f31c (diff) | |
| parent | 339ac71b233ee9ab5036be3abca0e5df793b5f64 (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
...
Diffstat (limited to 'Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3.txt | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3.txt b/Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3.txt deleted file mode 100644 index 031af5fb0379..000000000000 --- a/Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3.txt +++ /dev/null @@ -1,107 +0,0 @@ -* LPDDR3 SDRAM memories compliant to JEDEC JESD209-3C - -Required properties: -- compatible : Should be "<vendor>,<type>", and generic value "jedec,lpddr3". - Example "<vendor>,<type>" values: - "samsung,K3QF2F20DB" - -- density : <u32> representing density in Mb (Mega bits) -- io-width : <u32> representing bus width. Possible values are 8, 16, 32, 64 -- #address-cells: Must be set to 1 -- #size-cells: Must be set to 0 - -Optional properties: - -- manufacturer-id : <u32> Manufacturer ID value read from Mode Register 5 -- revision-id : <u32 u32> Revision IDs read from Mode Registers 6 and 7 - -The following optional properties represent the minimum value of some AC -timing parameters of the DDR device in terms of number of clock cycles. -These values shall be obtained from the device data-sheet. -- tRFC-min-tck -- tRRD-min-tck -- tRPab-min-tck -- tRPpb-min-tck -- tRCD-min-tck -- tRC-min-tck -- tRAS-min-tck -- tWTR-min-tck -- tWR-min-tck -- tRTP-min-tck -- tW2W-C2C-min-tck -- tR2R-C2C-min-tck -- tWL-min-tck -- tDQSCK-min-tck -- tRL-min-tck -- tFAW-min-tck -- tXSR-min-tck -- tXP-min-tck -- tCKE-min-tck -- tCKESR-min-tck -- tMRD-min-tck - -Child nodes: -- The lpddr3 node may have one or more child nodes of type "lpddr3-timings". - "lpddr3-timings" provides AC timing parameters of the device for - a given speed-bin. Please see - Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3-timings.txt - for more information on "lpddr3-timings" - -Example: - -samsung_K3QF2F20DB: lpddr3 { - compatible = "samsung,K3QF2F20DB", "jedec,lpddr3"; - density = <16384>; - io-width = <32>; - manufacturer-id = <1>; - revision-id = <123 234>; - #address-cells = <1>; - #size-cells = <0>; - - tRFC-min-tck = <17>; - tRRD-min-tck = <2>; - tRPab-min-tck = <2>; - tRPpb-min-tck = <2>; - tRCD-min-tck = <3>; - tRC-min-tck = <6>; - tRAS-min-tck = <5>; - tWTR-min-tck = <2>; - tWR-min-tck = <7>; - tRTP-min-tck = <2>; - tW2W-C2C-min-tck = <0>; - tR2R-C2C-min-tck = <0>; - tWL-min-tck = <8>; - tDQSCK-min-tck = <5>; - tRL-min-tck = <14>; - tFAW-min-tck = <5>; - tXSR-min-tck = <12>; - tXP-min-tck = <2>; - tCKE-min-tck = <2>; - tCKESR-min-tck = <2>; - tMRD-min-tck = <5>; - - timings_samsung_K3QF2F20DB_800mhz: lpddr3-timings@800000000 { - compatible = "jedec,lpddr3-timings"; - /* workaround: 'reg' shows max-freq */ - reg = <800000000>; - 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>; - }; -} |