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Signed-off-by: Neha Malcom Francis Signed-off-by: Gandhar Deshpande Signed-off-by: MANNURU VENKATESWARLU --- .../memory-controllers/ti/cdns,k3-ddr.yaml | 81 +++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 Documentation/devicetree/bindings/memory-controllers/ti/cdns,k3-ddr.yaml diff --git a/Documentation/devicetree/bindings/memory-controllers/ti/cdns,k3-ddr.yaml b/Documentation/devicetree/bindings/memory-controllers/ti/cdns,k3-ddr.yaml new file mode 100644 index 0000000000000..89caeb111627a --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/ti/cdns,k3-ddr.yaml @@ -0,0 +1,81 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/ti/cdns,k3-ddr.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cadence DDR controller for K3 devices + +maintainers: + - Santhosh Kumar K + - Neha Malcom Francis + +properties: + compatible: + const: cdns,k3-ddr + + reg: + minItems: 3 + maxItems: 3 + description: | + Address ranges for the different register regions of the DDRSS controller. + - ctl_cfg: Controller configuration registers + - ctl_cfg_pi: PHY Interface configuration registers + - ctl_cfg_phy: PHY configuration registers + + reg-names: + items: + - const: ctl_cfg + - const: ctl_cfg_pi + - const: ctl_cfg_phy + + bootph-pre-ram: true + +required: + - compatible + - reg + - reg-names + +unevaluatedProperties: false + +examples: + - | + #include + #include + + cbass_main { + #address-cells = <2>; + #size-cells = <2>; + + memorycontroller: memorycontroller@2980000 { + compatible = "ti,j721e-ddrss"; + reg = <0x0 0x02990000 0x0 0x4000>, + <0x0 0x0114000 0x0 0x100>; + reg-names = "cfg", "ctrl_mmr_lp4"; + power-domains = <&k3_pds 47 TI_SCI_PD_SHARED>, + <&k3_pds 90 TI_SCI_PD_SHARED>; + interrupts = ; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0x00 0x0000 0x00 0x02990000 0x00 0x4000>; + ti,ddr-freq1 = <0>; + ti,ddr-freq2 = <0>; + ti,ddr-fhs-cnt = <0>; + clocks = <&k3_clks 47 2>, <&k3_clks 30 9>; + bootph-pre-ram; + + ddr: ddr@0 { + compatible = "cdns,k3-ddr"; + reg = <0x00 0x0000 0x00 0x72c>, + <0x00 0x2000 0x00 0x4b0>, + <0x00 0x4000 0x00 0x163c>; + reg-names = "ctl_cfg", "ctl_cfg_pi", "ctl_cfg_phy"; + bootph-pre-ram; + }; + + ddr_pmu0: ddr-pmu@100 { + compatible = "ti,k3-ddr-pmu"; + reg = <0x00 0x100 0x00 0x14>; + }; + }; + }; -- 2.34.1