target/linux/brcm47xx/files/arch/mips/cfe/cfe_private.h

   1 /*
   2  * Broadcom Common Firmware Environment (CFE) support
   3  *
   4  * Copyright 2000, 2001, 2002
   5  * Broadcom Corporation. All rights reserved.
   6  *
   7  * Copyright (C) 2006 Michael Buesch
   8  *
   9  * Original Authors:  Mitch Lichtenberg, Chris Demetriou
  10  *
  11  * This software is furnished under license and may be used and copied only
  12  * in accordance with the following terms and conditions.  Subject to these
  13  * conditions, you may download, copy, install, use, modify and distribute
  14  * modified or unmodified copies of this software in source and/or binary
  15  * form. No title or ownership is transferred hereby.
  16  *
  17  * 1) Any source code used, modified or distributed must reproduce and
  18  *    retain this copyright notice and list of conditions as they appear in
  19  *    the source file.
  20  *
  21  * 2) No right is granted to use any trade name, trademark, or logo of
  22  *    Broadcom Corporation.  The "Broadcom Corporation" name may not be
  23  *    used to endorse or promote products derived from this software
  24  *    without the prior written permission of Broadcom Corporation.
  25  *
  26  * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
  27  *    WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
  28  *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
  29  *    NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
  30  *    FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
  31  *    LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  32  *    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  33  *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  34  *    BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  35  *    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  36  *    OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37  */
  38
  39 #ifndef LINUX_CFE_PRIVATE_H_
  40 #define LINUX_CFE_PRIVATE_H_
  41
  42 #ifndef __ASSEMBLY__
  43
  44 /* Seal indicating CFE's presence, passed to the kernel. */
  45 #define CFE_EPTSEAL             0x43464531
  46
  47 #define CFE_CMD_FW_GETINFO      0
  48 #define CFE_CMD_FW_RESTART      1
  49 #define CFE_CMD_FW_BOOT         2
  50 #define CFE_CMD_FW_CPUCTL       3
  51 #define CFE_CMD_FW_GETTIME      4
  52 #define CFE_CMD_FW_MEMENUM      5
  53 #define CFE_CMD_FW_FLUSHCACHE   6
  54
  55 #define CFE_CMD_DEV_GETHANDLE   9
  56 #define CFE_CMD_DEV_ENUM        10
  57 #define CFE_CMD_DEV_OPEN        11
  58 #define CFE_CMD_DEV_INPSTAT     12
  59 #define CFE_CMD_DEV_READ        13
  60 #define CFE_CMD_DEV_WRITE       14
  61 #define CFE_CMD_DEV_IOCTL       15
  62 #define CFE_CMD_DEV_CLOSE       16
  63 #define CFE_CMD_DEV_GETINFO     17
  64
  65 #define CFE_CMD_ENV_ENUM        20
  66 #define CFE_CMD_ENV_GET         22
  67 #define CFE_CMD_ENV_SET         23
  68 #define CFE_CMD_ENV_DEL         24
  69
  70 #define CFE_CMD_MAX             32
  71
  72 #define CFE_CMD_VENDOR_USE      0x8000  /* codes above this are for customer use */
  73
  74 typedef u64 cfe_uint_t;
  75 typedef s64 cfe_int_t;
  76 typedef s64 cfe_ptr_t;
  77
  78 /* Cast a pointer from native to CFE-API pointer and back */
  79 #define CFE_TO_PTR(p)           ((void *)(unsigned long)(p))
  80 #define PTR_TO_CFE(p)           ((cfe_ptr_t)(unsigned long)(p))
  81
  82 struct cfe_iocb_buf {
  83         cfe_uint_t      offset;         /* offset on device (bytes) */
  84         cfe_ptr_t       ptr;            /* pointer to a buffer */
  85         cfe_uint_t      length;         /* length of this buffer */
  86         cfe_uint_t      retlen;         /* returned length (for read ops) */
  87         union {
  88                 cfe_uint_t      ioctlcmd;       /* IOCTL command (used only for IOCTLs) */
  89                 cfe_uint_t      devflags;       /* Returned device info flags */
  90         };
  91 };
  92
  93 struct cfe_iocb_inpstat {
  94         cfe_uint_t      status;         /* 1 means input available */
  95 };
  96
  97 struct cfe_iocb_envbuf {
  98         cfe_int_t       index;          /* 0-based enumeration index */
  99         cfe_ptr_t       name;           /* name string buffer */
 100         cfe_int_t       name_len;       /* size of name buffer */
 101         cfe_ptr_t       val;            /* value string buffer */
 102         cfe_int_t       val_len;        /* size of value string buffer */
 103 };
 104
 105 struct cfe_iocb_cpuctl {
 106         cfe_uint_t      number;         /* cpu number to control */
 107         cfe_uint_t      command;        /* command to issue to CPU */
 108         cfe_uint_t      start_addr;     /* CPU start address */
 109         cfe_uint_t      gp;             /* starting GP value */
 110         cfe_uint_t      sp;             /* starting SP value */
 111         cfe_uint_t      a1;             /* starting A1 value */
 112 };
 113
 114 struct cfe_iocb_time {
 115         cfe_int_t       ticks;          /* current time in ticks */
 116 };
 117
 118 struct cfe_iocb_exitstat {
 119         cfe_int_t       status;
 120 };
 121
 122 struct cfe_iocb_meminfo {
 123         cfe_int_t       index;          /* 0-based enumeration index */
 124         cfe_int_t       type;           /* type of memory block */
 125         cfe_uint_t      addr;           /* physical start address */
 126         cfe_uint_t      size;           /* block size */
 127 };
 128
 129 struct cfe_iocb_fwinfo {
 130         cfe_int_t       version;        /* major, minor, eco version */
 131         cfe_int_t       totalmem;       /* total installed mem */
 132         cfe_int_t       flags;          /* various flags */
 133         cfe_int_t       boardid;        /* board ID */
 134         cfe_int_t       bootarea_va;    /* VA of boot area */
 135         cfe_int_t       bootarea_pa;    /* PA of boot area */
 136         cfe_int_t       bootarea_size;  /* size of boot area */
 137         cfe_int_t       reserved1;
 138         cfe_int_t       reserved2;
 139         cfe_int_t       reserved3;
 140 };
 141
 142 /* CFE I/O Control Block */
 143 struct cfe_iocb {
 144         cfe_uint_t      fcode;          /* IOCB function code */
 145         cfe_int_t       status;         /* return status */
 146         cfe_int_t       handle;         /* file/device handle */
 147         cfe_uint_t      flags;          /* flags for this IOCB */
 148         cfe_uint_t      psize;          /* size of parameter list */
 149         union {
 150                 struct cfe_iocb_buf             buffer;         /* buffer parameters */
 151                 struct cfe_iocb_inpstat         inpstat;        /* input status parameters */
 152                 struct cfe_iocb_envbuf          envbuf;         /* environment function parameters */
 153                 struct cfe_iocb_cpuctl          cpuctl;         /* CPU control parameters */
 154                 struct cfe_iocb_time            time;           /* timer parameters */
 155                 struct cfe_iocb_meminfo         meminfo;        /* memory arena info parameters */
 156                 struct cfe_iocb_fwinfo          fwinfo;         /* firmware information */
 157                 struct cfe_iocb_exitstat        exitstat;       /* Exit Status */
 158         };
 159 };
 160
 161
 162 #include <linux/init.h>
 163
 164 void __init cfe_setup(unsigned long fwarg0, unsigned long fwarg1,
 165                       unsigned long fwarg2, unsigned long fwarg3);
 166
 167 #else /* __ASSEMBLY__ */
 168
 169         .macro  cfe_early_init
 170 #ifdef CONFIG_CFE
 171                 jal     cfe_setup
 172 #endif
 173         .endm
 174
 175 #endif /* __ASSEMBLY__ */
 176 #endif /* LINUX_CFE_PRIVATE_H_ */