1Freescale SoC SEC Security Engines versions 2.x-3.x
2
3Required properties:
4
5- compatible : Should contain entries for this and backward compatible
6  SEC versions, high to low, e.g., "fsl,sec2.1", "fsl,sec2.0"
7- reg : Offset and length of the register set for the device
8- interrupts : the SEC's interrupt number
9- fsl,num-channels : An integer representing the number of channels
10  available.
11- fsl,channel-fifo-len : An integer representing the number of
12  descriptor pointers each channel fetch fifo can hold.
13- fsl,exec-units-mask : The bitmask representing what execution units
14  (EUs) are available. It's a single 32-bit cell. EU information
15  should be encoded following the SEC's Descriptor Header Dword
16  EU_SEL0 field documentation, i.e. as follows:
17
18	bit 0  = reserved - should be 0
19	bit 1  = set if SEC has the ARC4 EU (AFEU)
20	bit 2  = set if SEC has the DES/3DES EU (DEU)
21	bit 3  = set if SEC has the message digest EU (MDEU/MDEU-A)
22	bit 4  = set if SEC has the random number generator EU (RNG)
23	bit 5  = set if SEC has the public key EU (PKEU)
24	bit 6  = set if SEC has the AES EU (AESU)
25	bit 7  = set if SEC has the Kasumi EU (KEU)
26	bit 8  = set if SEC has the CRC EU (CRCU)
27	bit 11 = set if SEC has the message digest EU extended alg set (MDEU-B)
28
29remaining bits are reserved for future SEC EUs.
30
31- fsl,descriptor-types-mask : The bitmask representing what descriptors
32  are available. It's a single 32-bit cell. Descriptor type information
33  should be encoded following the SEC's Descriptor Header Dword DESC_TYPE
34  field documentation, i.e. as follows:
35
36	bit 0  = set if SEC supports the aesu_ctr_nonsnoop desc. type
37	bit 1  = set if SEC supports the ipsec_esp descriptor type
38	bit 2  = set if SEC supports the common_nonsnoop desc. type
39	bit 3  = set if SEC supports the 802.11i AES ccmp desc. type
40	bit 4  = set if SEC supports the hmac_snoop_no_afeu desc. type
41	bit 5  = set if SEC supports the srtp descriptor type
42	bit 6  = set if SEC supports the non_hmac_snoop_no_afeu desc.type
43	bit 7  = set if SEC supports the pkeu_assemble descriptor type
44	bit 8  = set if SEC supports the aesu_key_expand_output desc.type
45	bit 9  = set if SEC supports the pkeu_ptmul descriptor type
46	bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type
47	bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type
48
49  ..and so on and so forth.
50
51Optional properties:
52
53- interrupt-parent : the phandle for the interrupt controller that
54  services interrupts for this device.
55
56Example:
57
58	/* MPC8548E */
59	crypto@30000 {
60		compatible = "fsl,sec2.1", "fsl,sec2.0";
61		reg = <0x30000 0x10000>;
62		interrupts = <29 2>;
63		interrupt-parent = <&mpic>;
64		fsl,num-channels = <4>;
65		fsl,channel-fifo-len = <24>;
66		fsl,exec-units-mask = <0xfe>;
67		fsl,descriptor-types-mask = <0x12b0ebf>;
68	};
69