84 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/bus/arm,integrator-ap-lm.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Integrator/AP Logic Module extension bus8 9maintainers:10 - Linus Walleij <linusw@kernel.org>11 12description: The Integrator/AP is a prototyping platform and as such has a13 site for stacking up to four logic modules (LM) designed specifically for14 use with this platform. A special system controller register can be read to15 determine if a logic module is connected at index 0, 1, 2 or 3. The logic16 module connector is described in this binding. The logic modules per se17 then have their own specific per-module bindings and they will be described18 as subnodes under this logic module extension bus.19 20properties:21 "#address-cells":22 const: 123 24 "#size-cells":25 const: 126 27 compatible:28 items:29 - const: arm,integrator-ap-lm30 31 ranges: true32 dma-ranges: true33 34patternProperties:35 "^bus(@[0-9a-f]*)?$":36 description: Nodes on the Logic Module bus represent logic modules37 and are named with bus. The first module is at 0xc0000000, the second38 at 0xd0000000 and so on until the top of the memory of the system at39 0xffffffff. All information about the memory used by the module is40 in ranges and dma-ranges.41 type: object42 43 required:44 - compatible45 46required:47 - compatible48 49examples:50 - |51 bus@c0000000 {52 compatible = "arm,integrator-ap-lm";53 #address-cells = <1>;54 #size-cells = <1>;55 ranges = <0xc0000000 0xc0000000 0x40000000>;56 dma-ranges;57 58 bus@c0000000 {59 compatible = "simple-bus";60 ranges = <0x00000000 0xc0000000 0x10000000>;61 /* The Logic Modules sees the Core Module 0 RAM @80000000 */62 dma-ranges = <0x00000000 0x80000000 0x10000000>;63 #address-cells = <1>;64 #size-cells = <1>;65 66 serial@100000 {67 compatible = "arm,pl011", "arm,primecell";68 reg = <0x00100000 0x1000>;69 interrupts-extended = <&impd1_vic 1>;70 };71 72 impd1_vic: interrupt-controller@3000000 {73 compatible = "arm,pl192-vic";74 interrupt-controller;75 #interrupt-cells = <1>;76 reg = <0x03000000 0x1000>;77 valid-mask = <0x00000bff>;78 interrupts-extended = <&pic 9>;79 };80 };81 };82 83additionalProperties: false84