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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/media/raspberrypi,rp1-cfe.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Raspberry Pi PiSP Camera Front End
maintainers:
- Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
- Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
description: |
The Raspberry Pi PiSP Camera Front End is a module in Raspberrypi 5's RP1 I/O
controller, that contains:
- MIPI D-PHY
- MIPI CSI-2 receiver
- Simple image processor (called PiSP Front End, or FE)
The FE documentation is available at:
https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf
The PHY and CSI-2 receiver part have no public documentation.
properties:
compatible:
items:
- const: raspberrypi,rp1-cfe
reg:
items:
- description: CSI-2 registers
- description: D-PHY registers
- description: MIPI CFG (a simple top-level mux) registers
- description: FE registers
interrupts:
maxItems: 1
clocks:
maxItems: 1
port:
$ref: /schemas/graph.yaml#/$defs/port-base
additionalProperties: false
description: CSI-2 RX Port
properties:
endpoint:
$ref: video-interfaces.yaml#
unevaluatedProperties: false
properties:
data-lanes:
minItems: 1
maxItems: 4
required:
- data-lanes
required:
- compatible
- reg
- interrupts
- clocks
additionalProperties: false
examples:
- |
rp1 {
#address-cells = <2>;
#size-cells = <2>;
csi@110000 {
compatible = "raspberrypi,rp1-cfe";
reg = <0xc0 0x40110000 0x0 0x100>,
<0xc0 0x40114000 0x0 0x100>,
<0xc0 0x40120000 0x0 0x100>,
<0xc0 0x40124000 0x0 0x1000>;
interrupts = <42>;
clocks = <&rp1_clocks>;
port {
csi_ep: endpoint {
remote-endpoint = <&cam_endpoint>;
data-lanes = <1 2>;
};
};
};
};
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