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Merge branch 'master' of git://git.denx.de/u-boot-sparc
[u-boot] / 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 }