xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/crypto/atmel-crypto.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun* Atmel HW cryptographic accelerators
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunThese are the HW cryptographic accelerators found on some Atmel products.
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun* Advanced Encryption Standard (AES)
6*4882a593Smuzhiyun
7*4882a593SmuzhiyunRequired properties:
8*4882a593Smuzhiyun- compatible : Should be "atmel,at91sam9g46-aes".
9*4882a593Smuzhiyun- reg: Should contain AES registers location and length.
10*4882a593Smuzhiyun- interrupts: Should contain the IRQ line for the AES.
11*4882a593Smuzhiyun- dmas: List of two DMA specifiers as described in
12*4882a593Smuzhiyun        atmel-dma.txt and dma.txt files.
13*4882a593Smuzhiyun- dma-names: Contains one identifier string for each DMA specifier
14*4882a593Smuzhiyun             in the dmas property.
15*4882a593Smuzhiyun
16*4882a593SmuzhiyunExample:
17*4882a593Smuzhiyunaes@f8038000 {
18*4882a593Smuzhiyun	compatible = "atmel,at91sam9g46-aes";
19*4882a593Smuzhiyun	reg = <0xf8038000 0x100>;
20*4882a593Smuzhiyun	interrupts = <43 4 0>;
21*4882a593Smuzhiyun	dmas = <&dma1 2 18>,
22*4882a593Smuzhiyun	       <&dma1 2 19>;
23*4882a593Smuzhiyun	dma-names = "tx", "rx";
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun* Triple Data Encryption Standard (Triple DES)
26*4882a593Smuzhiyun
27*4882a593SmuzhiyunRequired properties:
28*4882a593Smuzhiyun- compatible : Should be "atmel,at91sam9g46-tdes".
29*4882a593Smuzhiyun- reg: Should contain TDES registers location and length.
30*4882a593Smuzhiyun- interrupts: Should contain the IRQ line for the TDES.
31*4882a593Smuzhiyun
32*4882a593SmuzhiyunOptional properties:
33*4882a593Smuzhiyun- dmas: List of two DMA specifiers as described in
34*4882a593Smuzhiyun        atmel-dma.txt and dma.txt files.
35*4882a593Smuzhiyun- dma-names: Contains one identifier string for each DMA specifier
36*4882a593Smuzhiyun             in the dmas property.
37*4882a593Smuzhiyun
38*4882a593SmuzhiyunExample:
39*4882a593Smuzhiyuntdes@f803c000 {
40*4882a593Smuzhiyun	compatible = "atmel,at91sam9g46-tdes";
41*4882a593Smuzhiyun	reg = <0xf803c000 0x100>;
42*4882a593Smuzhiyun	interrupts = <44 4 0>;
43*4882a593Smuzhiyun	dmas = <&dma1 2 20>,
44*4882a593Smuzhiyun	       <&dma1 2 21>;
45*4882a593Smuzhiyun	dma-names = "tx", "rx";
46*4882a593Smuzhiyun};
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun* Secure Hash Algorithm (SHA)
49*4882a593Smuzhiyun
50*4882a593SmuzhiyunRequired properties:
51*4882a593Smuzhiyun- compatible : Should be "atmel,at91sam9g46-sha".
52*4882a593Smuzhiyun- reg: Should contain SHA registers location and length.
53*4882a593Smuzhiyun- interrupts: Should contain the IRQ line for the SHA.
54*4882a593Smuzhiyun
55*4882a593SmuzhiyunOptional properties:
56*4882a593Smuzhiyun- dmas: One DMA specifiers as described in
57*4882a593Smuzhiyun        atmel-dma.txt and dma.txt files.
58*4882a593Smuzhiyun- dma-names: Contains one identifier string for each DMA specifier
59*4882a593Smuzhiyun             in the dmas property. Only one "tx" string needed.
60*4882a593Smuzhiyun
61*4882a593SmuzhiyunExample:
62*4882a593Smuzhiyunsha@f8034000 {
63*4882a593Smuzhiyun	compatible = "atmel,at91sam9g46-sha";
64*4882a593Smuzhiyun	reg = <0xf8034000 0x100>;
65*4882a593Smuzhiyun	interrupts = <42 4 0>;
66*4882a593Smuzhiyun	dmas = <&dma1 2 17>;
67*4882a593Smuzhiyun	dma-names = "tx";
68*4882a593Smuzhiyun};
69