qca,ath79-ddr-controller.yaml (1624B)
1# SPDX-License-Identifier: GPL-2.0 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/memory-controllers/qca,ath79-ddr-controller.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Qualcomm Atheros AR7xxx/AR9xxx DDR controller 8 9maintainers: 10 - Krzysztof Kozlowski <krzk@kernel.org> 11 12description: | 13 The DDR controller of the AR7xxx and AR9xxx families provides an interface to 14 flush the FIFO between various devices and the DDR. This is mainly used by 15 the IRQ controller to flush the FIFO before running the interrupt handler of 16 such devices. 17 18properties: 19 compatible: 20 oneOf: 21 - items: 22 - const: qca,ar9132-ddr-controller 23 - const: qca,ar7240-ddr-controller 24 - items: 25 - enum: 26 - qca,ar7100-ddr-controller 27 - qca,ar7240-ddr-controller 28 29 "#qca,ddr-wb-channel-cells": 30 description: | 31 Specifies the number of cells needed to encode the write buffer channel 32 index. 33 $ref: /schemas/types.yaml#/definitions/uint32 34 const: 1 35 36 reg: 37 maxItems: 1 38 39required: 40 - compatible 41 - "#qca,ddr-wb-channel-cells" 42 - reg 43 44additionalProperties: false 45 46examples: 47 - | 48 ddr_ctrl: memory-controller@18000000 { 49 compatible = "qca,ar9132-ddr-controller", 50 "qca,ar7240-ddr-controller"; 51 reg = <0x18000000 0x100>; 52 53 #qca,ddr-wb-channel-cells = <1>; 54 }; 55 56 interrupt-controller { 57 // ... 58 qca,ddr-wb-channel-interrupts = <2>, <3>, <4>, <5>; 59 qca,ddr-wb-channels = <&ddr_ctrl 3>, <&ddr_ctrl 2>, 60 <&ddr_ctrl 0>, <&ddr_ctrl 1>; 61 };