1Freescale SoC SEC Security Engines versions 1.x-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" (SEC2/3)
7                             e.g., "fsl,sec1.2", "fsl,sec1.0" (SEC1)
8    warning: SEC1 and SEC2 are mutually exclusive
9- reg : Offset and length of the register set for the device
10- interrupts : the SEC's interrupt number
11- fsl,num-channels : An integer representing the number of channels
12  available.
13- fsl,channel-fifo-len : An integer representing the number of
14  descriptor pointers each channel fetch fifo can hold.
15- fsl,exec-units-mask : The bitmask representing what execution units
16  (EUs) are available. It's a single 32-bit cell. EU information
17  should be encoded following the SEC's Descriptor Header Dword
18  EU_SEL0 field documentation, i.e. as follows:
19
20	bit 0  = reserved - should be 0
21	bit 1  = set if SEC has the ARC4 EU (AFEU)
22	bit 2  = set if SEC has the DES/3DES EU (DEU)
23	bit 3  = set if SEC has the message digest EU (MDEU/MDEU-A)
24	bit 4  = set if SEC has the random number generator EU (RNG)
25	bit 5  = set if SEC has the public key EU (PKEU)
26	bit 6  = set if SEC has the AES EU (AESU)
27	bit 7  = set if SEC has the Kasumi EU (KEU)
28	bit 8  = set if SEC has the CRC EU (CRCU)
29	bit 11 = set if SEC has the message digest EU extended alg set (MDEU-B)
30
31remaining bits are reserved for future SEC EUs.
32
33- fsl,descriptor-types-mask : The bitmask representing what descriptors
34  are available. It's a single 32-bit cell. Descriptor type information
35  should be encoded following the SEC's Descriptor Header Dword DESC_TYPE
36  field documentation, i.e. as follows:
37
38	bit 0  = set if SEC supports the aesu_ctr_nonsnoop desc. type
39	bit 1  = set if SEC supports the ipsec_esp descriptor type
40	bit 2  = set if SEC supports the common_nonsnoop desc. type
41	bit 3  = set if SEC supports the 802.11i AES ccmp desc. type
42	bit 4  = set if SEC supports the hmac_snoop_no_afeu desc. type
43	bit 5  = set if SEC supports the srtp descriptor type
44	bit 6  = set if SEC supports the non_hmac_snoop_no_afeu desc.type
45	bit 7  = set if SEC supports the pkeu_assemble descriptor type
46	bit 8  = set if SEC supports the aesu_key_expand_output desc.type
47	bit 9  = set if SEC supports the pkeu_ptmul descriptor type
48	bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type
49	bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type
50
51  ..and so on and so forth.
52
53Example:
54
55	/* MPC8548E */
56	crypto@30000 {
57		compatible = "fsl,sec2.1", "fsl,sec2.0";
58		reg = <0x30000 0x10000>;
59		interrupts = <29 2>;
60		interrupt-parent = <&mpic>;
61		fsl,num-channels = <4>;
62		fsl,channel-fifo-len = <24>;
63		fsl,exec-units-mask = <0xfe>;
64		fsl,descriptor-types-mask = <0x12b0ebf>;
65	};
66