release/src-rt-6.x.4708/include/hndtcam.h

   1 /*
   2  * HND SOCRAM TCAM software interface.
   3  *
   4  * Copyright (C) 2012, Broadcom Corporation. All Rights Reserved.
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  13  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  15  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  16  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  *
  18  * $Id: hndtcam.h 362090 2012-10-10 23:32:09Z $
  19  */
  20 #ifndef _hndtcam_h_
  21 #define _hndtcam_h_
  22
  23 /*
  24  * 0 - 1
  25  * 1 - 2 Consecutive locations are patched
  26  * 2 - 4 Consecutive locations are patched
  27  * 3 - 8 Consecutive locations are patched
  28  * 4 - 16 Consecutive locations are patched
  29  * Define default to patch 2 locations
  30  */
  31
  32 #ifdef  PATCHCOUNT
  33 #define SRPC_PATCHCOUNT PATCHCOUNT
  34 #else
  35 #define PATCHCOUNT 0
  36 #define SRPC_PATCHCOUNT PATCHCOUNT
  37 #endif
  38
  39 #if defined(__ARM_ARCH_7R__)
  40 #if !defined(PATCHCOUNT) || (PATCHCOUNT == 0)
  41 #undef PATCHCOUNT
  42 #define PATCHCOUNT 1
  43 #endif
  44 #define ARMCR4_TCAMPATCHCOUNT   PATCHCOUNT
  45 #define ARMCR4_TCAMADDR_MASK (~((1 << (ARMCR4_TCAMPATCHCOUNT + 2))-1))
  46 #define ARMCR4_PATCHNLOC (1 << ARMCR4_TCAMPATCHCOUNT)
  47 #endif  /* defined(__ARM_ARCH_7R__) */
  48
  49 /* N Consecutive location to patch */
  50 #define SRPC_PATCHNLOC (1 << (SRPC_PATCHCOUNT))
  51
  52 #define PATCHHDR(_p)            __attribute__ ((__section__ (".patchhdr."#_p))) _p
  53 #define PATCHENTRY(_p)          __attribute__ ((__section__ (".patchentry."#_p))) _p
  54
  55 #if defined(__ARM_ARCH_7R__)
  56 typedef struct {
  57         uint32  data[ARMCR4_PATCHNLOC];
  58 } patch_entry_t;
  59 #else
  60 typedef struct {
  61         uint32  data[SRPC_PATCHNLOC];
  62 } patch_entry_t;
  63 #endif
  64
  65 typedef struct {
  66         void            *addr;          /* patch address */
  67         uint32          len;            /* bytes to patch in entry */
  68         patch_entry_t   *entry;         /* patch entry data */
  69 } patch_hdr_t;
  70
  71 /* patch values and address structure */
  72 typedef struct patchaddrvalue {
  73         uint32  addr;
  74         uint32  value;
  75 } patchaddrvalue_t;
  76
  77 extern void *socram_regs;
  78 extern uint32 socram_rev;
  79
  80 extern void *arm_regs;
  81
  82 extern void hnd_patch_init(void *srp);
  83 extern void hnd_tcam_write(void *srp, uint16 idx, uint32 data);
  84 extern void hnd_tcam_read(void *srp, uint16 idx, uint32 *content);
  85 void * hnd_tcam_init(void *srp, int no_addrs);
  86 extern void hnd_tcam_disablepatch(void *srp);
  87 extern void hnd_tcam_patchdisable(void);
  88 extern void hnd_tcam_enablepatch(void *srp);
  89 #ifdef CONFIG_XIP
  90 extern void hnd_tcam_bootloader_load(void *srp, char *pvars);
  91 #else
  92 extern void hnd_tcam_load(void *srp, const  patchaddrvalue_t *patchtbl);
  93 #endif /* CONFIG_XIP */
  94 extern void BCMATTACHFN(hnd_tcam_load_default)(void);
  95 extern void hnd_tcam_reclaim(void);
  96
  97 #endif /* _hndtcam_h_ */