board/esd/vme8349/caddy.h

   1 /*
   2  * caddy.c -- esd VME8349 support for "missing" access modes in TSI148.
   3  * Copyright (c) 2009 esd gmbh.
   4  *
   5  * Reinhard Arlt <reinhard.arlt@esd-electronics.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #ifndef __CADDY_H__
  11 #define __CADDY_H__
  12
  13 #define CMD_SIZE        1024
  14 #define ANSWER_SIZE     1024
  15 #define CADDY_MAGIC     "esd vme8349 V1.0"
  16
  17 enum caddy_cmds {
  18         CADDY_CMD_IO_READ_8,
  19         CADDY_CMD_IO_READ_16,
  20         CADDY_CMD_IO_READ_32,
  21         CADDY_CMD_IO_WRITE_8,
  22         CADDY_CMD_IO_WRITE_16,
  23         CADDY_CMD_IO_WRITE_32,
  24         CADDY_CMD_CONFIG_READ_8,
  25         CADDY_CMD_CONFIG_READ_16,
  26         CADDY_CMD_CONFIG_READ_32,
  27         CADDY_CMD_CONFIG_WRITE_8,
  28         CADDY_CMD_CONFIG_WRITE_16,
  29         CADDY_CMD_CONFIG_WRITE_32,
  30 };
  31
  32 struct caddy_cmd {
  33         uint32_t cmd;
  34         uint32_t issue;
  35         uint32_t addr;
  36         uint32_t par[5];
  37 };
  38
  39 struct caddy_answer {
  40         uint32_t answer;
  41         uint32_t issue;
  42         uint32_t status;
  43         uint32_t par[5];
  44 };
  45
  46 struct caddy_interface {
  47         uint8_t  magic[16];
  48         uint32_t cmd_in;
  49         uint32_t cmd_out;
  50         uint32_t heartbeat;
  51         uint32_t reserved1;
  52         struct caddy_cmd cmd[CMD_SIZE];
  53         uint32_t answer_in;
  54         uint32_t answer_out;
  55         uint32_t reserved2;
  56         uint32_t reserved3;
  57         struct caddy_answer answer[CMD_SIZE];
  58 };
  59
  60 #endif /* of __CADDY_H__ */