Freescale SoC SEC Security Engines versions 1.x-2.x-3.x Required properties: - compatible : Should contain entries for this and backward compatible SEC versions, high to low, e.g., "fsl,sec2.1", "fsl,sec2.0" (SEC2/3) e.g., "fsl,sec1.2", "fsl,sec1.0" (SEC1) warning: SEC1 and SEC2 are mutually exclusive - reg : Offset and length of the register set for the device - interrupts : the SEC's interrupt number - fsl,num-channels : An integer representing the number of channels available. - fsl,channel-fifo-len : An integer representing the number of descriptor pointers each channel fetch fifo can hold. - fsl,exec-units-mask : The bitmask representing what execution units (EUs) are available. It's a single 32-bit cell. EU information should be encoded following the SEC's Descriptor Header Dword EU_SEL0 field documentation, i.e. as follows: bit 0 = reserved - should be 0 bit 1 = set if SEC has the ARC4 EU (AFEU) bit 2 = set if SEC has the DES/3DES EU (DEU) bit 3 = set if SEC has the message digest EU (MDEU/MDEU-A) bit 4 = set if SEC has the random number generator EU (RNG) bit 5 = set if SEC has the public key EU (PKEU) bit 6 = set if SEC has the AES EU (AESU) bit 7 = set if SEC has the Kasumi EU (KEU) bit 8 = set if SEC has the CRC EU (CRCU) bit 11 = set if SEC has the message digest EU extended alg set (MDEU-B) remaining bits are reserved for future SEC EUs. - fsl,descriptor-types-mask : The bitmask representing what descriptors are available. It's a single 32-bit cell. Descriptor type information should be encoded following the SEC's Descriptor Header Dword DESC_TYPE field documentation, i.e. as follows: bit 0 = set if SEC supports the aesu_ctr_nonsnoop desc. type bit 1 = set if SEC supports the ipsec_esp descriptor type bit 2 = set if SEC supports the common_nonsnoop desc. type bit 3 = set if SEC supports the 802.11i AES ccmp desc. type bit 4 = set if SEC supports the hmac_snoop_no_afeu desc. type bit 5 = set if SEC supports the srtp descriptor type bit 6 = set if SEC supports the non_hmac_snoop_no_afeu desc.type bit 7 = set if SEC supports the pkeu_assemble descriptor type bit 8 = set if SEC supports the aesu_key_expand_output desc.type bit 9 = set if SEC supports the pkeu_ptmul descriptor type bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type ..and so on and so forth. Example: /* MPC8548E */ crypto@30000 { compatible = "fsl,sec2.1", "fsl,sec2.0"; reg = <0x30000 0x10000>; interrupts = <29 2>; interrupt-parent = <&mpic>; fsl,num-channels = <4>; fsl,channel-fifo-len = <24>; fsl,exec-units-mask = <0xfe>; fsl,descriptor-types-mask = <0x12b0ebf>; };