amlogic,axg-fifo.txt (1186B)
1* Amlogic Audio FIFO controllers 2 3Required properties: 4- compatible: 'amlogic,axg-toddr' or 5 'amlogic,axg-toddr' or 6 'amlogic,g12a-frddr' or 7 'amlogic,g12a-toddr' or 8 'amlogic,sm1-frddr' or 9 'amlogic,sm1-toddr' 10- reg: physical base address of the controller and length of memory 11 mapped region. 12- interrupts: interrupt specifier for the fifo. 13- clocks: phandle to the fifo peripheral clock provided by the audio 14 clock controller. 15- resets: list of reset phandle, one for each entry reset-names. 16- reset-names: should contain the following: 17 * "arb" : memory ARB line (required) 18 * "rst" : dedicated device reset line (optional) 19- #sound-dai-cells: must be 0. 20- amlogic,fifo-depth: The size of the controller's fifo in bytes. This 21 is useful for determining certain configuration such 22 as the flush threshold of the fifo 23 24Example of FRDDR A on the A113 SoC: 25 26frddr_a: audio-controller@1c0 { 27 compatible = "amlogic,axg-frddr"; 28 reg = <0x0 0x1c0 0x0 0x1c>; 29 #sound-dai-cells = <0>; 30 interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>; 31 clocks = <&clkc_audio AUD_CLKID_FRDDR_A>; 32 resets = <&arb AXG_ARB_FRDDR_A>; 33 fifo-depth = <512>; 34};