Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) ST-Ericsson COH 901 318 DMA Controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) This is a DMA controller which has begun as a fork of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) ARM PL08x PrimeCell VHDL code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) Required properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) - compatible: should be "stericsson,coh901318"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) - reg: register locations and length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) - interrupts: the single DMA IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) - #dma-cells: must be set to <1>, as the channels on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)   COH 901 318 are simple and identified by a single number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) - dma-channels: the number of DMA channels handled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) Example:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) dmac: dma-controller@c00020000 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	compatible = "stericsson,coh901318";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	reg = <0xc0020000 0x1000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	interrupt-parent = <&vica>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	interrupts = <2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	#dma-cells = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	dma-channels = <40>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) Consumers example:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) uart0: serial@c0013000 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	compatible = "...";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	(...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	dmas = <&dmac 17 &dmac 18>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	dma-names = "tx", "rx";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) };