bindings/dma/brcm%2Cbcm2835-dma.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dma/brcm,bcm2835-dma.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: BCM2835 DMA controller
10   - Nicolas Saenz Julienne <nsaenz@kernel.org>
13   The BCM2835 DMA controller has 16 channels in total. Only the lower
15   VideoCore firmware (1,3,6,7 in the current firmware version). The channels
19   - $ref: dma-controller.yaml#
23     const: brcm,bcm2835-dma
35   interrupt-names:
39   '#dma-cells':
43   brcm,dma-channel-mask:
47       not reserved by firmware and are available to the
53   - compatible
54   - reg
55   - interrupts
56   - "#dma-cells"
57   - brcm,dma-channel-mask
60   - |
61     dma-controller@7e007000 {
62       compatible = "brcm,bcm2835-dma";
75                    /* dma channel 11-14 share one irq */
82       interrupt-names = "dma0",
97                         "dma-shared-all";
98         #dma-cells = <1>;
99         brcm,dma-channel-mask = <0x7f35>;