arch/blackfin/include/asm/mach-common/bits/lockbox.h

   1 /*
   2  * Lockbox/Security Masks
   3  */
   4
   5 #ifndef __BFIN_PERIPHERAL_LOCKBOX__
   6 #define __BFIN_PERIPHERAL_LOCKBOX__
   7
   8 #ifndef __ASSEMBLY__
   9
  10 #include "bootrom.h"
  11
  12 /* SESR argument structure. Expected to reside at 0xFF900018. */
  13 typedef struct SESR_args {
  14         unsigned short  usFlags;            /* security firmware flags            */
  15         unsigned short  usIRQMask;          /* interrupt mask                     */
  16         unsigned long   ulMessageSize;      /* message length in bytes            */
  17         unsigned long   ulSFEntryPoint;     /* entry point of secure function     */
  18         unsigned long   ulMessagePtr;       /* pointer to the buffer containing
  19                                                the digital signature and message  */
  20         unsigned long   ulReserved1;        /* reserved                           */
  21         unsigned long   ulReserved2;        /* reserved                           */
  22 } tSESR_args;
  23
  24 /* Secure Entry Service Routine */
  25 static void (* const sesr)(void) = (void *)_BOOTROM_SESR;
  26
  27 #endif
  28
  29 /* SESR flags argument bitfields */
  30 #define SESR_FLAGS_STAY_AT_NMI              0x0000
  31 #define SESR_FLAGS_DROP_BELOW_NMI           0x0001
  32 #define SESR_FLAGS_NO_SF_DMA                0x0000
  33 #define SESR_FLAGS_DMA_SF_TO_RUN_DEST       0x0002
  34 #define SESR_FLAGS_USE_ADI_PUB_KEY          0x0000
  35 #define SESR_FLAGS_USE_CUST_PUB_KEY         0x0100
  36
  37 /* Bit masks for SECURE_SYSSWT */
  38 #define EMUDABL                0x00000001    /* Emulation Disable */
  39 #define RSTDABL                0x00000002    /* Reset Disable */
  40 #define L1IDABL                0x0000001c    /* L1 Instruction Memory Disable */
  41 #define L1DADABL               0x000000e0    /* L1 Data Bank A Memory Disable */
  42 #define L1DBDABL               0x00000700    /* L1 Data Bank B Memory Disable */
  43 #define DMA0OVR                0x00000800    /* DMA0 Memory Access Override */
  44 #define DMA1OVR                0x00001000    /* DMA1 Memory Access Override */
  45 #define EMUOVR                 0x00004000    /* Emulation Override */
  46 #define OTPSEN                 0x00008000    /* OTP Secrets Enable */
  47 #define L2DABL                 0x00070000    /* L2 Memory Disable */
  48
  49 /* Bit masks for SECURE_CONTROL */
  50 #define SECURE0                0x0001        /* SECURE 0 */
  51 #define SECURE1                0x0002        /* SECURE 1 */
  52 #define SECURE2                0x0004        /* SECURE 2 */
  53 #define SECURE3                0x0008        /* SECURE 3 */
  54
  55 /* Bit masks for SECURE_STATUS */
  56 #define SECMODE                0x0003        /* Secured Mode Control State */
  57 #define NMI                    0x0004        /* Non Maskable Interrupt */
  58 #define AFVALID                0x0008        /* Authentication Firmware Valid */
  59 #define AFEXIT                 0x0010        /* Authentication Firmware Exit */
  60 #define SECSTAT                0x00e0        /* Secure Status */
  61
  62 #endif