board/gdsys/405ep/iocon.c

   1 /*
   2  * (C) Copyright 2010
   3  * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.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 #include <common.h>
  25 #include <command.h>
  26 #include <asm/processor.h>
  27 #include <asm/io.h>
  28 #include <asm/ppc4xx-gpio.h>
  29
  30 #include "../common/fpga.h"
  31 #include "../common/osd.h"
  32
  33 enum {
  34         REG_VERSIONS = 0x0002,
  35         REG_FPGA_VERSION = 0x0004,
  36         REG_FPGA_FEATURES = 0x0006,
  37 };
  38
  39 enum {
  40         UNITTYPE_MAIN_SERVER = 0,
  41         UNITTYPE_MAIN_USER = 1,
  42         UNITTYPE_VIDEO_SERVER = 2,
  43         UNITTYPE_VIDEO_USER = 3,
  44 };
  45
  46 enum {
  47         HWVER_100 = 0,
  48         HWVER_104 = 1,
  49         HWVER_110 = 2,
  50 };
  51
  52 enum {
  53         COMPRESSION_NONE = 0,
  54         COMPRESSION_TYPE1_DELTA,
  55 };
  56
  57 enum {
  58         AUDIO_NONE = 0,
  59         AUDIO_TX = 1,
  60         AUDIO_RX = 2,
  61         AUDIO_RXTX = 3,
  62 };
  63
  64 enum {
  65         SYSCLK_147456 = 0,
  66 };
  67
  68 enum {
  69         RAM_DDR2_32 = 0,
  70 };
  71
  72 /*
  73  * Check Board Identity:
  74  */
  75 int checkboard(void)
  76 {
  77         char *s = getenv("serial#");
  78         u16 versions = fpga_get_reg(REG_VERSIONS);
  79         u16 fpga_version = fpga_get_reg(REG_FPGA_VERSION);
  80         u16 fpga_features = fpga_get_reg(REG_FPGA_FEATURES);
  81         unsigned unit_type;
  82         unsigned hardware_version;
  83         unsigned feature_compression;
  84         unsigned feature_osd;
  85         unsigned feature_audio;
  86         unsigned feature_sysclock;
  87         unsigned feature_ramconfig;
  88         unsigned feature_carriers;
  89         unsigned feature_video_channels;
  90
  91         unit_type = (versions & 0xf000) >> 12;
  92         hardware_version = versions & 0x000f;
  93         feature_compression = (fpga_features & 0xe000) >> 13;
  94         feature_osd = fpga_features & (1<<11);
  95         feature_audio = (fpga_features & 0x0600) >> 9;
  96         feature_sysclock = (fpga_features & 0x0180) >> 7;
  97         feature_ramconfig = (fpga_features & 0x0060) >> 5;
  98         feature_carriers = (fpga_features & 0x000c) >> 2;
  99         feature_video_channels = fpga_features & 0x0003;
 100
 101         printf("Board: ");
 102
 103         printf("IoCon");
 104
 105         if (s != NULL) {
 106                 puts(", serial# ");
 107                 puts(s);
 108         }
 109         puts("\n       ");
 110
 111         switch (unit_type) {
 112         case UNITTYPE_MAIN_USER:
 113                 printf("Mainchannel");
 114                 break;
 115
 116         case UNITTYPE_VIDEO_USER:
 117                 printf("Videochannel");
 118                 break;
 119
 120         default:
 121                 printf("UnitType %d(not supported)", unit_type);
 122                 break;
 123         }
 124
 125         switch (hardware_version) {
 126         case HWVER_100:
 127                 printf(" HW-Ver 1.00\n");
 128                 break;
 129
 130         case HWVER_104:
 131                 printf(" HW-Ver 1.04\n");
 132                 break;
 133
 134         case HWVER_110:
 135                 printf(" HW-Ver 1.10\n");
 136                 break;
 137
 138         default:
 139                 printf(" HW-Ver %d(not supported)\n",
 140                        hardware_version);
 141                 break;
 142         }
 143
 144         printf("       FPGA V %d.%02d, features:",
 145                 fpga_version / 100, fpga_version % 100);
 146
 147
 148         switch (feature_compression) {
 149         case COMPRESSION_NONE:
 150                 printf(" no compression");
 151                 break;
 152
 153         case COMPRESSION_TYPE1_DELTA:
 154                 printf(" type1-deltacompression");
 155                 break;
 156
 157         default:
 158                 printf(" compression %d(not supported)", feature_compression);
 159                 break;
 160         }
 161
 162         printf(", %sosd", feature_osd ? "" : "no ");
 163
 164         switch (feature_audio) {
 165         case AUDIO_NONE:
 166                 printf(", no audio");
 167                 break;
 168
 169         case AUDIO_TX:
 170                 printf(", audio tx");
 171                 break;
 172
 173         case AUDIO_RX:
 174                 printf(", audio rx");
 175                 break;
 176
 177         case AUDIO_RXTX:
 178                 printf(", audio rx+tx");
 179                 break;
 180
 181         default:
 182                 printf(", audio %d(not supported)", feature_audio);
 183                 break;
 184         }
 185
 186         puts(",\n       ");
 187
 188         switch (feature_sysclock) {
 189         case SYSCLK_147456:
 190                 printf("clock 147.456 MHz");
 191                 break;
 192
 193         default:
 194                 printf("clock %d(not supported)", feature_sysclock);
 195                 break;
 196         }
 197
 198         switch (feature_ramconfig) {
 199         case RAM_DDR2_32:
 200                 printf(", RAM 32 bit DDR2");
 201                 break;
 202
 203         default:
 204                 printf(", RAM %d(not supported)", feature_ramconfig);
 205                 break;
 206         }
 207
 208         printf(", %d carrier(s)", feature_carriers);
 209
 210         printf(", %d video channel(s)\n", feature_video_channels);
 211
 212         return 0;
 213 }
 214
 215 int last_stage_init(void)
 216 {
 217         return osd_probe();
 218 }
 219
 220 /*
 221  * provide access to fpga gpios (for I2C bitbang)
 222  */
 223 void fpga_gpio_set(int pin)
 224 {
 225         out_le16((void *)(CONFIG_SYS_FPGA_BASE + 0x18), pin);
 226 }
 227
 228 void fpga_gpio_clear(int pin)
 229 {
 230         out_le16((void *)(CONFIG_SYS_FPGA_BASE + 0x16), pin);
 231 }
 232
 233 int fpga_gpio_get(int pin)
 234 {
 235         return in_le16((void *)(CONFIG_SYS_FPGA_BASE + 0x14)) & pin;
 236 }