tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1* Atmel SSC driver.
2
3Required properties:
4- compatible: "atmel,at91rm9200-ssc" or "atmel,at91sam9g45-ssc"
5 - atmel,at91rm9200-ssc: support pdc transfer
6 - atmel,at91sam9g45-ssc: support dma transfer
7- reg: Should contain SSC registers location and length
8- interrupts: Should contain SSC interrupt
9
10
11Required properties for devices compatible with "atmel,at91sam9g45-ssc":
12- dmas: DMA specifier, consisting of a phandle to DMA controller node,
13 the memory interface and SSC DMA channel ID (for tx and rx).
14 See Documentation/devicetree/bindings/dma/atmel-dma.txt for details.
15- dma-names: Must be "tx", "rx".
16
17Examples:
18- PDC transfer:
19ssc0: ssc@fffbc000 {
20 compatible = "atmel,at91rm9200-ssc";
21 reg = <0xfffbc000 0x4000>;
22 interrupts = <14 4 5>;
23};
24
25- DMA transfer:
26ssc0: ssc@f0010000 {
27 compatible = "atmel,at91sam9g45-ssc";
28 reg = <0xf0010000 0x4000>;
29 interrupts = <28 4 5>;
30 dmas = <&dma0 1 13>,
31 <&dma0 1 14>;
32 dma-names = "tx", "rx";
33 pinctrl-names = "default";
34 pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>;
35 status = "disabled";
36};