u-boot/include/fsl_sec.h
Ruchika Gupta c5de15cbc8 crypto/fsl: Add command for encapsulating/decapsulating blobs
Freescale's SEC block has built-in Blob Protocol which provides
a method for protecting user-defined data across system power
cycles. SEC block protects data in a data structure called a Blob,
which provides both confidentiality and integrity protection.

Encapsulating data as a blob
Each time that the Blob Protocol is used to protect data, a
different randomly generated key is used to encrypt the data.
This random key is itself encrypted using a key which is derived
from SoC's non volatile secret key and a 16 bit Key identifier.
The resulting encrypted key along with encrypted data is called a blob.
The non volatile secure key is available for use only during secure boot.

During decapsulation, the reverse process is performed to get back
the original data.

Commands added
--------------
    blob enc - encapsulating data as a cryptgraphic blob
    blob dec - decapsulating cryptgraphic blob to get the data

Commands Syntax
---------------
	blob enc src dst len km

	Encapsulate and create blob of data $len bytes long
	at address $src and store the result at address $dst.
	$km is the 16 byte key modifier is also required for
	generation/use as key for cryptographic operation. Key
	modifier should be 16 byte long.

	blob dec src dst len km

	Decapsulate the  blob of data at address $src and
	store result of $len byte at addr $dst.
	$km is the 16 byte key modifier is also required for
	generation/use as key for cryptographic operation. Key
	modifier should be 16 byte long.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2014-10-16 14:20:40 -07:00

182 lines
4.9 KiB
C

/*
* Common internal memory map for some Freescale SoCs
*
* Copyright 2014 Freescale Semiconductor, Inc.
*
*/
#ifndef __FSL_SEC_H
#define __FSL_SEC_H
#include <common.h>
#include <asm/io.h>
#ifdef CONFIG_SYS_FSL_SEC_LE
#define sec_in32(a) in_le32(a)
#define sec_out32(a, v) out_le32(a, v)
#define sec_in16(a) in_le16(a)
#define sec_clrbits32 clrbits_le32
#define sec_setbits32 setbits_le32
#elif defined(CONFIG_SYS_FSL_SEC_BE)
#define sec_in32(a) in_be32(a)
#define sec_out32(a, v) out_be32(a, v)
#define sec_in16(a) in_be16(a)
#define sec_clrbits32 clrbits_be32
#define sec_setbits32 setbits_be32
#else
#error Neither CONFIG_SYS_FSL_SEC_LE nor CONFIG_SYS_FSL_SEC_BE is defined
#endif
/* Security Engine Block (MS = Most Sig., LS = Least Sig.) */
#if CONFIG_SYS_FSL_SEC_COMPAT >= 4
/* RNG4 TRNG test registers */
struct rng4tst {
#define RTMCTL_PRGM 0x00010000 /* 1 -> program mode, 0 -> run mode */
u32 rtmctl; /* misc. control register */
u32 rtscmisc; /* statistical check misc. register */
u32 rtpkrrng; /* poker range register */
#define RTSDCTL_ENT_DLY_MIN 1200
#define RTSDCTL_ENT_DLY_MAX 12800
union {
u32 rtpkrmax; /* PRGM=1: poker max. limit register */
u32 rtpkrsq; /* PRGM=0: poker square calc. result register */
};
#define RTSDCTL_ENT_DLY_SHIFT 16
#define RTSDCTL_ENT_DLY_MASK (0xffff << RTSDCTL_ENT_DLY_SHIFT)
u32 rtsdctl; /* seed control register */
union {
u32 rtsblim; /* PRGM=1: sparse bit limit register */
u32 rttotsam; /* PRGM=0: total samples register */
};
u32 rtfreqmin; /* frequency count min. limit register */
union {
u32 rtfreqmax; /* PRGM=1: freq. count max. limit register */
u32 rtfreqcnt; /* PRGM=0: freq. count register */
};
u32 rsvd1[40];
#define RNG_STATE0_HANDLE_INSTANTIATED 0x00000001
u32 rdsta; /*RNG DRNG Status Register*/
u32 rsvd2[15];
};
typedef struct ccsr_sec {
u32 res0;
u32 mcfgr; /* Master CFG Register */
u8 res1[0x4];
u32 scfgr;
struct {
u32 ms; /* Job Ring LIODN Register, MS */
u32 ls; /* Job Ring LIODN Register, LS */
} jrliodnr[4];
u8 res2[0x2c];
u32 jrstartr; /* Job Ring Start Register */
struct {
u32 ms; /* RTIC LIODN Register, MS */
u32 ls; /* RTIC LIODN Register, LS */
} rticliodnr[4];
u8 res3[0x1c];
u32 decorr; /* DECO Request Register */
struct {
u32 ms; /* DECO LIODN Register, MS */
u32 ls; /* DECO LIODN Register, LS */
} decoliodnr[8];
u8 res4[0x40];
u32 dar; /* DECO Avail Register */
u32 drr; /* DECO Reset Register */
u8 res5[0x4d8];
struct rng4tst rng; /* RNG Registers */
u8 res11[0x8a0];
u32 crnr_ms; /* CHA Revision Number Register, MS */
u32 crnr_ls; /* CHA Revision Number Register, LS */
u32 ctpr_ms; /* Compile Time Parameters Register, MS */
u32 ctpr_ls; /* Compile Time Parameters Register, LS */
u8 res6[0x10];
u32 far_ms; /* Fault Address Register, MS */
u32 far_ls; /* Fault Address Register, LS */
u32 falr; /* Fault Address LIODN Register */
u32 fadr; /* Fault Address Detail Register */
u8 res7[0x4];
u32 csta; /* CAAM Status Register */
u8 res8[0x8];
u32 rvid; /* Run Time Integrity Checking Version ID Reg.*/
u32 ccbvid; /* CHA Cluster Block Version ID Register */
u32 chavid_ms; /* CHA Version ID Register, MS */
u32 chavid_ls; /* CHA Version ID Register, LS */
u32 chanum_ms; /* CHA Number Register, MS */
u32 chanum_ls; /* CHA Number Register, LS */
u32 secvid_ms; /* SEC Version ID Register, MS */
u32 secvid_ls; /* SEC Version ID Register, LS */
u8 res9[0x6020];
u32 qilcr_ms; /* Queue Interface LIODN CFG Register, MS */
u32 qilcr_ls; /* Queue Interface LIODN CFG Register, LS */
u8 res10[0x8fd8];
} ccsr_sec_t;
#define SEC_CTPR_MS_AXI_LIODN 0x08000000
#define SEC_CTPR_MS_QI 0x02000000
#define SEC_CTPR_MS_VIRT_EN_INCL 0x00000001
#define SEC_CTPR_MS_VIRT_EN_POR 0x00000002
#define SEC_RVID_MA 0x0f000000
#define SEC_CHANUM_MS_JRNUM_MASK 0xf0000000
#define SEC_CHANUM_MS_JRNUM_SHIFT 28
#define SEC_CHANUM_MS_DECONUM_MASK 0x0f000000
#define SEC_CHANUM_MS_DECONUM_SHIFT 24
#define SEC_SECVID_MS_IPID_MASK 0xffff0000
#define SEC_SECVID_MS_IPID_SHIFT 16
#define SEC_SECVID_MS_MAJ_REV_MASK 0x0000ff00
#define SEC_SECVID_MS_MAJ_REV_SHIFT 8
#define SEC_CCBVID_ERA_MASK 0xff000000
#define SEC_CCBVID_ERA_SHIFT 24
#define SEC_SCFGR_RDBENABLE 0x00000400
#define SEC_SCFGR_VIRT_EN 0x00008000
#define SEC_CHAVID_LS_RNG_SHIFT 16
#define SEC_CHAVID_RNG_LS_MASK 0x000f0000
#define CONFIG_JRSTARTR_JR0 0x00000001
struct jr_regs {
#ifdef CONFIG_SYS_FSL_SEC_LE
u32 irba_l;
u32 irba_h;
#else
u32 irba_h;
u32 irba_l;
#endif
u32 rsvd1;
u32 irs;
u32 rsvd2;
u32 irsa;
u32 rsvd3;
u32 irja;
#ifdef CONFIG_SYS_FSL_SEC_LE
u32 orba_l;
u32 orba_h;
#else
u32 orba_h;
u32 orba_l;
#endif
u32 rsvd4;
u32 ors;
u32 rsvd5;
u32 orjr;
u32 rsvd6;
u32 orsf;
u32 rsvd7;
u32 jrsta;
u32 rsvd8;
u32 jrint;
u32 jrcfg0;
u32 jrcfg1;
u32 rsvd9;
u32 irri;
u32 rsvd10;
u32 orwi;
u32 rsvd11;
u32 jrcr;
};
int sec_init(void);
#endif
#endif /* __FSL_SEC_H */