LXR uboot/board/siemens/SCM/fpga

   1/*
   2 * (C) Copyright 2002
   3 * Wolfgang Grandegger, DENX Software Engineering, wg@denx.de.
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24
  25#include <common.h>
  26#include <mpc8260.h>
  27#include <common.h>
  28#include "../common/fpga.h"
  29
  30fpga_t fpga_list[] = {
  31        {"FIOX", CONFIG_SYS_FIOX_BASE,
  32         CONFIG_SYS_PD_FIOX_INIT, CONFIG_SYS_PD_FIOX_PROG, CONFIG_SYS_PD_FIOX_DONE}
  33        ,
  34        {"FDOHM", CONFIG_SYS_FDOHM_BASE,
  35         CONFIG_SYS_PD_FDOHM_INIT, CONFIG_SYS_PD_FDOHM_PROG, CONFIG_SYS_PD_FDOHM_DONE}
  36};
  37int fpga_count = sizeof (fpga_list) / sizeof (fpga_t);
  38
  39
  40ulong fpga_control (fpga_t * fpga, int cmd)
  41{
  42        volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
  43
  44        switch (cmd) {
  45        case FPGA_INIT_IS_HIGH:
  46                immr->im_ioport.iop_pdird &= ~fpga->init_mask;  /* input */
  47                return (immr->im_ioport.iop_pdatd & fpga->init_mask) ? 1 : 0;
  48
  49        case FPGA_INIT_SET_LOW:
  50                immr->im_ioport.iop_pdird |= fpga->init_mask;   /* output */
  51                immr->im_ioport.iop_pdatd &= ~fpga->init_mask;
  52                break;
  53
  54        case FPGA_INIT_SET_HIGH:
  55                immr->im_ioport.iop_pdird |= fpga->init_mask;   /* output */
  56                immr->im_ioport.iop_pdatd |= fpga->init_mask;
  57                break;
  58
  59        case FPGA_PROG_SET_LOW:
  60                immr->im_ioport.iop_pdatd &= ~fpga->prog_mask;
  61                break;
  62
  63        case FPGA_PROG_SET_HIGH:
  64                immr->im_ioport.iop_pdatd |= fpga->prog_mask;
  65                break;
  66
  67        case FPGA_DONE_IS_HIGH:
  68                return (immr->im_ioport.iop_pdatd & fpga->done_mask) ? 1 : 0;
  69
  70        case FPGA_READ_MODE:
  71                break;
  72
  73        case FPGA_LOAD_MODE:
  74                break;
  75
  76        case FPGA_GET_ID:
  77                if (fpga->conf_base == CONFIG_SYS_FIOX_BASE) {
  78                        ulong ver =
  79                                *(volatile ulong *) (fpga->conf_base + 0x10);
  80                        return ((ver >> 10) & 0xf) + ((ver >> 2) & 0xf0);
  81                } else if (fpga->conf_base == CONFIG_SYS_FDOHM_BASE) {
  82                        return (*(volatile ushort *) fpga->conf_base) & 0xff;
  83                } else {
  84                        return *(volatile ulong *) fpga->conf_base;
  85                }
  86
  87        case FPGA_INIT_PORTS:
  88                immr->im_ioport.iop_ppard &= ~fpga->init_mask;  /* INIT I/O */
  89                immr->im_ioport.iop_psord &= ~fpga->init_mask;
  90                immr->im_ioport.iop_pdird &= ~fpga->init_mask;
  91
  92                immr->im_ioport.iop_ppard &= ~fpga->prog_mask;  /* PROG Output */
  93                immr->im_ioport.iop_psord &= ~fpga->prog_mask;
  94                immr->im_ioport.iop_pdird |= fpga->prog_mask;
  95
  96                immr->im_ioport.iop_ppard &= ~fpga->done_mask;  /* DONE Input */
  97                immr->im_ioport.iop_psord &= ~fpga->done_mask;
  98                immr->im_ioport.iop_pdird &= ~fpga->done_mask;
  99
 100                break;
 101
 102        }
 103        return 0;
 104}
 105