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wdenke2211742002-11-02 23:30:20 +00001/*
2 * (C) Copyright 2002
3 * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
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/*
26 * Generic FPGA support
27 */
28#include <common.h> /* core U-Boot definitions */
29#include <xilinx.h> /* xilinx specific definitions */
30#include <altera.h> /* altera specific definitions */
Stefano Babicec65c592010-06-29 11:47:48 +020031#include <lattice.h>
wdenke2211742002-11-02 23:30:20 +000032
wdenke2211742002-11-02 23:30:20 +000033#if 0
34#define FPGA_DEBUG /* define FPGA_DEBUG to get debug messages */
35#endif
36
37/* Local definitions */
38#ifndef CONFIG_MAX_FPGA_DEVICES
39#define CONFIG_MAX_FPGA_DEVICES 5
40#endif
41
42/* Enable/Disable debug console messages */
43#ifdef FPGA_DEBUG
44#define PRINTF(fmt,args...) printf (fmt ,##args)
45#else
46#define PRINTF(fmt,args...)
47#endif
48
49/* Local static data */
wdenke2211742002-11-02 23:30:20 +000050static int next_desc = FPGA_INVALID_DEVICE;
51static fpga_desc desc_table[CONFIG_MAX_FPGA_DEVICES];
52
53/* Local static functions */
Wolfgang Denk7fb52662005-10-13 16:45:02 +020054static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum );
55static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate( int devnum, void *buf,
wdenk57b2d802003-06-27 21:31:46 +000056 size_t bsize, char *fn );
wdenke2211742002-11-02 23:30:20 +000057static int fpga_dev_info( int devnum );
58
59
60/* ------------------------------------------------------------------------- */
61
62/* fpga_no_sup
63 * 'no support' message function
64 */
65static void fpga_no_sup( char *fn, char *msg )
66{
67 if ( fn && msg ) {
Matthias Fuchsa4400872007-12-27 17:12:34 +010068 printf( "%s: No support for %s.\n", fn, msg);
wdenke2211742002-11-02 23:30:20 +000069 } else if ( msg ) {
Matthias Fuchsa4400872007-12-27 17:12:34 +010070 printf( "No support for %s.\n", msg);
wdenke2211742002-11-02 23:30:20 +000071 } else {
Matthias Fuchsa4400872007-12-27 17:12:34 +010072 printf( "No FPGA suport!\n");
wdenke2211742002-11-02 23:30:20 +000073 }
74}
75
76
77/* fpga_get_desc
78 * map a device number to a descriptor
79 */
Wolfgang Denk7fb52662005-10-13 16:45:02 +020080static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum )
wdenke2211742002-11-02 23:30:20 +000081{
82 fpga_desc *desc = (fpga_desc * )NULL;
83
84 if (( devnum >= 0 ) && (devnum < next_desc )) {
85 desc = &desc_table[devnum];
86 PRINTF( "%s: found fpga descriptor #%d @ 0x%p\n",
87 __FUNCTION__, devnum, desc );
88 }
89
90 return desc;
91}
92
93
94/* fpga_validate
95 * generic parameter checking code
96 */
Wolfgang Denk7fb52662005-10-13 16:45:02 +020097static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate( int devnum, void *buf,
wdenk57b2d802003-06-27 21:31:46 +000098 size_t bsize, char *fn )
wdenke2211742002-11-02 23:30:20 +000099{
Wolfgang Denk7fb52662005-10-13 16:45:02 +0200100 fpga_desc * desc = fpga_get_desc( devnum );
wdenke2211742002-11-02 23:30:20 +0000101
102 if ( !desc ) {
103 printf( "%s: Invalid device number %d\n", fn, devnum );
104 }
105
106 if ( !buf ) {
107 printf( "%s: Null buffer.\n", fn );
108 return (fpga_desc * const)NULL;
109 }
wdenke2211742002-11-02 23:30:20 +0000110 return desc;
111}
112
113
114/* fpga_dev_info
115 * generic multiplexing code
116 */
117static int fpga_dev_info( int devnum )
118{
119 int ret_val = FPGA_FAIL; /* assume failure */
120 const fpga_desc * const desc = fpga_get_desc( devnum );
121
122 if ( desc ) {
123 PRINTF( "%s: Device Descriptor @ 0x%p\n",
124 __FUNCTION__, desc->devdesc );
125
126 switch ( desc->devtype ) {
127 case fpga_xilinx:
Matthias Fuchsa4400872007-12-27 17:12:34 +0100128#if defined(CONFIG_FPGA_XILINX)
wdenke2211742002-11-02 23:30:20 +0000129 printf( "Xilinx Device\nDescriptor @ 0x%p\n", desc );
130 ret_val = xilinx_info( desc->devdesc );
131#else
Stefan Roese0b294432006-09-18 10:48:03 +0200132 fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
wdenke2211742002-11-02 23:30:20 +0000133#endif
134 break;
135 case fpga_altera:
Matthias Fuchsa4400872007-12-27 17:12:34 +0100136#if defined(CONFIG_FPGA_ALTERA)
wdenke2211742002-11-02 23:30:20 +0000137 printf( "Altera Device\nDescriptor @ 0x%p\n", desc );
138 ret_val = altera_info( desc->devdesc );
139#else
Wolfgang Denk7fb52662005-10-13 16:45:02 +0200140 fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
wdenke2211742002-11-02 23:30:20 +0000141#endif
142 break;
Stefano Babicec65c592010-06-29 11:47:48 +0200143 case fpga_lattice:
Wolfgang Denkace143a2010-10-18 21:32:14 +0200144#if defined(CONFIG_FPGA_LATTICE)
Stefano Babicec65c592010-06-29 11:47:48 +0200145 printf("Lattice Device\nDescriptor @ 0x%p\n", desc);
146 ret_val = lattice_info(desc->devdesc);
Wolfgang Denkace143a2010-10-18 21:32:14 +0200147#else
148 fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" );
149#endif
Stefano Babicec65c592010-06-29 11:47:48 +0200150 break;
wdenke2211742002-11-02 23:30:20 +0000151 default:
152 printf( "%s: Invalid or unsupported device type %d\n",
153 __FUNCTION__, desc->devtype );
154 }
155 } else {
156 printf( "%s: Invalid device number %d\n",
157 __FUNCTION__, devnum );
158 }
159
160 return ret_val;
161}
162
163
wdenke2211742002-11-02 23:30:20 +0000164/* ------------------------------------------------------------------------- */
165/* fgpa_init is usually called from misc_init_r() and MUST be called
166 * before any of the other fpga functions are used.
167 */
Peter Tysercf8582c2009-09-21 11:20:32 -0500168void fpga_init(void)
wdenke2211742002-11-02 23:30:20 +0000169{
wdenke2211742002-11-02 23:30:20 +0000170 next_desc = 0;
171 memset( desc_table, 0, sizeof(desc_table));
172
173 PRINTF( "%s: CONFIG_FPGA = 0x%x\n", __FUNCTION__, CONFIG_FPGA );
wdenke2211742002-11-02 23:30:20 +0000174}
175
176/* fpga_count
177 * Basic interface function to get the current number of devices available.
178 */
Wolfgang Denk7fb52662005-10-13 16:45:02 +0200179int fpga_count( void )
wdenke2211742002-11-02 23:30:20 +0000180{
181 return next_desc;
182}
183
184/* fpga_add
Peter Tysercf8582c2009-09-21 11:20:32 -0500185 * Add the device descriptor to the device table.
wdenke2211742002-11-02 23:30:20 +0000186 */
187int fpga_add( fpga_type devtype, void *desc )
188{
189 int devnum = FPGA_INVALID_DEVICE;
190
191 if ( next_desc < 0 ) {
192 printf( "%s: FPGA support not initialized!\n", __FUNCTION__ );
193 } else if (( devtype > fpga_min_type ) && ( devtype < fpga_undefined )) {
194 if ( desc ) {
195 if ( next_desc < CONFIG_MAX_FPGA_DEVICES ) {
Peter Tysercf8582c2009-09-21 11:20:32 -0500196 devnum = next_desc;
197 desc_table[next_desc].devtype = devtype;
198 desc_table[next_desc++].devdesc = desc;
wdenke2211742002-11-02 23:30:20 +0000199 } else {
200 printf( "%s: Exceeded Max FPGA device count\n", __FUNCTION__ );
201 }
202 } else {
203 printf( "%s: NULL device descriptor\n", __FUNCTION__ );
204 }
205 } else {
206 printf( "%s: Unsupported FPGA type %d\n", __FUNCTION__, devtype );
207 }
208
209 return devnum;
210}
211
212/*
213 * Generic multiplexing code
214 */
215int fpga_load( int devnum, void *buf, size_t bsize )
216{
217 int ret_val = FPGA_FAIL; /* assume failure */
Wolfgang Denk7fb52662005-10-13 16:45:02 +0200218 fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ );
wdenke2211742002-11-02 23:30:20 +0000219
220 if ( desc ) {
221 switch ( desc->devtype ) {
222 case fpga_xilinx:
Matthias Fuchsa4400872007-12-27 17:12:34 +0100223#if defined(CONFIG_FPGA_XILINX)
wdenke2211742002-11-02 23:30:20 +0000224 ret_val = xilinx_load( desc->devdesc, buf, bsize );
225#else
Stefan Roese0b294432006-09-18 10:48:03 +0200226 fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
wdenke2211742002-11-02 23:30:20 +0000227#endif
228 break;
229 case fpga_altera:
Matthias Fuchsa4400872007-12-27 17:12:34 +0100230#if defined(CONFIG_FPGA_ALTERA)
wdenke2211742002-11-02 23:30:20 +0000231 ret_val = altera_load( desc->devdesc, buf, bsize );
232#else
Wolfgang Denk7fb52662005-10-13 16:45:02 +0200233 fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
wdenke2211742002-11-02 23:30:20 +0000234#endif
235 break;
Stefano Babicec65c592010-06-29 11:47:48 +0200236 case fpga_lattice:
Wolfgang Denkace143a2010-10-18 21:32:14 +0200237#if defined(CONFIG_FPGA_LATTICE)
Stefano Babicec65c592010-06-29 11:47:48 +0200238 ret_val = lattice_load(desc->devdesc, buf, bsize);
Wolfgang Denkace143a2010-10-18 21:32:14 +0200239#else
240 fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" );
241#endif
Stefano Babicec65c592010-06-29 11:47:48 +0200242 break;
wdenke2211742002-11-02 23:30:20 +0000243 default:
244 printf( "%s: Invalid or unsupported device type %d\n",
245 __FUNCTION__, desc->devtype );
246 }
247 }
248
249 return ret_val;
250}
251
252/* fpga_dump
253 * generic multiplexing code
254 */
255int fpga_dump( int devnum, void *buf, size_t bsize )
256{
257 int ret_val = FPGA_FAIL; /* assume failure */
Wolfgang Denk7fb52662005-10-13 16:45:02 +0200258 fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ );
wdenke2211742002-11-02 23:30:20 +0000259
260 if ( desc ) {
261 switch ( desc->devtype ) {
262 case fpga_xilinx:
Matthias Fuchsa4400872007-12-27 17:12:34 +0100263#if defined(CONFIG_FPGA_XILINX)
wdenke2211742002-11-02 23:30:20 +0000264 ret_val = xilinx_dump( desc->devdesc, buf, bsize );
265#else
Stefan Roese0b294432006-09-18 10:48:03 +0200266 fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
wdenke2211742002-11-02 23:30:20 +0000267#endif
268 break;
269 case fpga_altera:
Matthias Fuchsa4400872007-12-27 17:12:34 +0100270#if defined(CONFIG_FPGA_ALTERA)
wdenke2211742002-11-02 23:30:20 +0000271 ret_val = altera_dump( desc->devdesc, buf, bsize );
272#else
Wolfgang Denk7fb52662005-10-13 16:45:02 +0200273 fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
wdenke2211742002-11-02 23:30:20 +0000274#endif
275 break;
Stefano Babicec65c592010-06-29 11:47:48 +0200276 case fpga_lattice:
Wolfgang Denkace143a2010-10-18 21:32:14 +0200277#if defined(CONFIG_FPGA_LATTICE)
Stefano Babicec65c592010-06-29 11:47:48 +0200278 ret_val = lattice_dump(desc->devdesc, buf, bsize);
Wolfgang Denkace143a2010-10-18 21:32:14 +0200279#else
280 fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" );
281#endif
Stefano Babicec65c592010-06-29 11:47:48 +0200282 break;
wdenke2211742002-11-02 23:30:20 +0000283 default:
284 printf( "%s: Invalid or unsupported device type %d\n",
285 __FUNCTION__, desc->devtype );
286 }
287 }
288
289 return ret_val;
290}
291
292
293/* fpga_info
294 * front end to fpga_dev_info. If devnum is invalid, report on all
295 * available devices.
296 */
297int fpga_info( int devnum )
298{
299 if ( devnum == FPGA_INVALID_DEVICE ) {
300 if ( next_desc > 0 ) {
301 int dev;
302
303 for ( dev = 0; dev < next_desc; dev++ ) {
304 fpga_dev_info( dev );
305 }
306 return FPGA_SUCCESS;
307 } else {
308 printf( "%s: No FPGA devices available.\n", __FUNCTION__ );
309 return FPGA_FAIL;
310 }
311 }
312 else return fpga_dev_info( devnum );
313}
314
315/* ------------------------------------------------------------------------- */