From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- .../memory-controllers/nvidia,tegra124-mc.yaml | 157 +++++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-mc.yaml (limited to 'Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-mc.yaml') diff --git a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-mc.yaml b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-mc.yaml new file mode 100644 index 000000000..7b18b4d11 --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-mc.yaml @@ -0,0 +1,157 @@ +# SPDX-License-Identifier: (GPL-2.0) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/nvidia,tegra124-mc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra124 SoC Memory Controller + +maintainers: + - Jon Hunter + - Thierry Reding + +description: | + Tegra124 SoC features a hybrid 2x32-bit / 1x64-bit memory controller. + These are interleaved to provide high performance with the load shared across + two memory channels. The Tegra124 Memory Controller handles memory requests + from internal clients and arbitrates among them to allocate memory bandwidth + for DDR3L and LPDDR3 SDRAMs. + +properties: + compatible: + const: nvidia,tegra124-mc + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: mc + + interrupts: + maxItems: 1 + + "#reset-cells": + const: 1 + + "#iommu-cells": + const: 1 + + "#interconnect-cells": + const: 1 + +patternProperties: + "^emc-timings-[0-9]+$": + type: object + properties: + nvidia,ram-code: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Value of RAM_CODE this timing set is used for. + + patternProperties: + "^timing-[0-9]+$": + type: object + properties: + clock-frequency: + description: + Memory clock rate in Hz. + minimum: 1000000 + maximum: 1066000000 + + nvidia,emem-configuration: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: | + Values to be written to the EMEM register block. See section + "15.6.1 MC Registers" in the TRM. + items: + - description: MC_EMEM_ARB_CFG + - description: MC_EMEM_ARB_OUTSTANDING_REQ + - description: MC_EMEM_ARB_TIMING_RCD + - description: MC_EMEM_ARB_TIMING_RP + - description: MC_EMEM_ARB_TIMING_RC + - description: MC_EMEM_ARB_TIMING_RAS + - description: MC_EMEM_ARB_TIMING_FAW + - description: MC_EMEM_ARB_TIMING_RRD + - description: MC_EMEM_ARB_TIMING_RAP2PRE + - description: MC_EMEM_ARB_TIMING_WAP2PRE + - description: MC_EMEM_ARB_TIMING_R2R + - description: MC_EMEM_ARB_TIMING_W2W + - description: MC_EMEM_ARB_TIMING_R2W + - description: MC_EMEM_ARB_TIMING_W2R + - description: MC_EMEM_ARB_DA_TURNS + - description: MC_EMEM_ARB_DA_COVERS + - description: MC_EMEM_ARB_MISC0 + - description: MC_EMEM_ARB_MISC1 + - description: MC_EMEM_ARB_RING1_THROTTLE + + required: + - clock-frequency + - nvidia,emem-configuration + + additionalProperties: false + + required: + - nvidia,ram-code + + additionalProperties: false + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - "#reset-cells" + - "#iommu-cells" + - "#interconnect-cells" + +additionalProperties: false + +examples: + - | + memory-controller@70019000 { + compatible = "nvidia,tegra124-mc"; + reg = <0x70019000 0x1000>; + clocks = <&tegra_car 32>; + clock-names = "mc"; + + interrupts = <0 77 4>; + + #iommu-cells = <1>; + #reset-cells = <1>; + #interconnect-cells = <1>; + + emc-timings-3 { + nvidia,ram-code = <3>; + + timing-12750000 { + clock-frequency = <12750000>; + + nvidia,emem-configuration = < + 0x40040001 /* MC_EMEM_ARB_CFG */ + 0x8000000a /* MC_EMEM_ARB_OUTSTANDING_REQ */ + 0x00000001 /* MC_EMEM_ARB_TIMING_RCD */ + 0x00000001 /* MC_EMEM_ARB_TIMING_RP */ + 0x00000002 /* MC_EMEM_ARB_TIMING_RC */ + 0x00000000 /* MC_EMEM_ARB_TIMING_RAS */ + 0x00000002 /* MC_EMEM_ARB_TIMING_FAW */ + 0x00000001 /* MC_EMEM_ARB_TIMING_RRD */ + 0x00000002 /* MC_EMEM_ARB_TIMING_RAP2PRE */ + 0x00000008 /* MC_EMEM_ARB_TIMING_WAP2PRE */ + 0x00000003 /* MC_EMEM_ARB_TIMING_R2R */ + 0x00000002 /* MC_EMEM_ARB_TIMING_W2W */ + 0x00000003 /* MC_EMEM_ARB_TIMING_R2W */ + 0x00000006 /* MC_EMEM_ARB_TIMING_W2R */ + 0x06030203 /* MC_EMEM_ARB_DA_TURNS */ + 0x000a0402 /* MC_EMEM_ARB_DA_COVERS */ + 0x77e30303 /* MC_EMEM_ARB_MISC0 */ + 0x70000f03 /* MC_EMEM_ARB_MISC1 */ + 0x001f0000 /* MC_EMEM_ARB_RING1_THROTTLE */ + >; + }; + }; + }; -- cgit v1.2.3