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1 /*
2  * (C) Copyright 2012-2013, Xilinx, Michal Simek
3  *
4  * (C) Copyright 2002
5  * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
6  * Keith Outwater, keith_outwater@mvis.com
7  *
8  * SPDX-License-Identifier:     GPL-2.0+
9  */
10
11 /*
12  *  Xilinx FPGA support
13  */
14
15 #include <common.h>
16 #include <fpga.h>
17 #include <virtex2.h>
18 #include <spartan2.h>
19 #include <spartan3.h>
20 #include <zynqpl.h>
21
22 /* Local Static Functions */
23 static int xilinx_validate(xilinx_desc *desc, char *fn);
24
25 /* ------------------------------------------------------------------------- */
26
27 int fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
28                        bitstream_type bstype)
29 {
30         unsigned int length;
31         unsigned int swapsize;
32         char buffer[80];
33         unsigned char *dataptr;
34         unsigned int i;
35         const fpga_desc *desc;
36         xilinx_desc *xdesc;
37
38         dataptr = (unsigned char *)fpgadata;
39         /* Find out fpga_description */
40         desc = fpga_validate(devnum, dataptr, 0, (char *)__func__);
41         /* Assign xilinx device description */
42         xdesc = desc->devdesc;
43
44         /* skip the first bytes of the bitsteam, their meaning is unknown */
45         length = (*dataptr << 8) + *(dataptr + 1);
46         dataptr += 2;
47         dataptr += length;
48
49         /* get design name (identifier, length, string) */
50         length = (*dataptr << 8) + *(dataptr + 1);
51         dataptr += 2;
52         if (*dataptr++ != 0x61) {
53                 debug("%s: Design name id not recognized in bitstream\n",
54                       __func__);
55                 return FPGA_FAIL;
56         }
57
58         length = (*dataptr << 8) + *(dataptr + 1);
59         dataptr += 2;
60         for (i = 0; i < length; i++)
61                 buffer[i] = *dataptr++;
62
63         printf("  design filename = \"%s\"\n", buffer);
64
65         /* get part number (identifier, length, string) */
66         if (*dataptr++ != 0x62) {
67                 printf("%s: Part number id not recognized in bitstream\n",
68                        __func__);
69                 return FPGA_FAIL;
70         }
71
72         length = (*dataptr << 8) + *(dataptr + 1);
73         dataptr += 2;
74         for (i = 0; i < length; i++)
75                 buffer[i] = *dataptr++;
76
77         if (xdesc->name) {
78                 i = strncmp(buffer, xdesc->name, strlen(xdesc->name));
79                 if (i) {
80                         printf("%s: Wrong bitstream ID for this device\n",
81                                __func__);
82                         printf("%s: Bitstream ID %s, current device ID %d/%s\n",
83                                __func__, buffer, devnum, xdesc->name);
84                         return FPGA_FAIL;
85                 }
86         } else {
87                 printf("%s: Please fill correct device ID to xilinx_desc\n",
88                        __func__);
89         }
90         printf("  part number = \"%s\"\n", buffer);
91
92         /* get date (identifier, length, string) */
93         if (*dataptr++ != 0x63) {
94                 printf("%s: Date identifier not recognized in bitstream\n",
95                        __func__);
96                 return FPGA_FAIL;
97         }
98
99         length = (*dataptr << 8) + *(dataptr+1);
100         dataptr += 2;
101         for (i = 0; i < length; i++)
102                 buffer[i] = *dataptr++;
103         printf("  date = \"%s\"\n", buffer);
104
105         /* get time (identifier, length, string) */
106         if (*dataptr++ != 0x64) {
107                 printf("%s: Time identifier not recognized in bitstream\n",
108                        __func__);
109                 return FPGA_FAIL;
110         }
111
112         length = (*dataptr << 8) + *(dataptr+1);
113         dataptr += 2;
114         for (i = 0; i < length; i++)
115                 buffer[i] = *dataptr++;
116         printf("  time = \"%s\"\n", buffer);
117
118         /* get fpga data length (identifier, length) */
119         if (*dataptr++ != 0x65) {
120                 printf("%s: Data length id not recognized in bitstream\n",
121                        __func__);
122                 return FPGA_FAIL;
123         }
124         swapsize = ((unsigned int) *dataptr << 24) +
125                    ((unsigned int) *(dataptr + 1) << 16) +
126                    ((unsigned int) *(dataptr + 2) << 8) +
127                    ((unsigned int) *(dataptr + 3));
128         dataptr += 4;
129         printf("  bytes in bitstream = %d\n", swapsize);
130
131         return fpga_load(devnum, dataptr, swapsize, bstype);
132 }
133
134 int xilinx_load(xilinx_desc *desc, const void *buf, size_t bsize,
135                 bitstream_type bstype)
136 {
137         if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
138                 printf ("%s: Invalid device descriptor\n", __FUNCTION__);
139                 return FPGA_FAIL;
140         }
141
142         return desc->operations->load(desc, buf, bsize, bstype);
143 }
144
145 #if defined(CONFIG_CMD_FPGA_LOADFS)
146 int xilinx_loadfs(xilinx_desc *desc, const void *buf, size_t bsize,
147                    fpga_fs_info *fpga_fsinfo)
148 {
149         if (!xilinx_validate(desc, (char *)__func__)) {
150                 printf("%s: Invalid device descriptor\n", __func__);
151                 return FPGA_FAIL;
152         }
153
154         if (!desc->operations->loadfs)
155                 return FPGA_FAIL;
156
157         return desc->operations->loadfs(desc, buf, bsize, fpga_fsinfo);
158 }
159 #endif
160
161 int xilinx_dump(xilinx_desc *desc, const void *buf, size_t bsize)
162 {
163         if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
164                 printf ("%s: Invalid device descriptor\n", __FUNCTION__);
165                 return FPGA_FAIL;
166         }
167
168         return desc->operations->dump(desc, buf, bsize);
169 }
170
171 int xilinx_info(xilinx_desc *desc)
172 {
173         int ret_val = FPGA_FAIL;
174
175         if (xilinx_validate (desc, (char *)__FUNCTION__)) {
176                 printf ("Family:        \t");
177                 switch (desc->family) {
178                 case xilinx_spartan2:
179                         printf ("Spartan-II\n");
180                         break;
181                 case xilinx_spartan3:
182                         printf ("Spartan-III\n");
183                         break;
184                 case xilinx_virtex2:
185                         printf ("Virtex-II\n");
186                         break;
187                 case xilinx_zynq:
188                         printf("Zynq PL\n");
189                         break;
190                         /* Add new family types here */
191                 default:
192                         printf ("Unknown family type, %d\n", desc->family);
193                 }
194
195                 printf ("Interface type:\t");
196                 switch (desc->iface) {
197                 case slave_serial:
198                         printf ("Slave Serial\n");
199                         break;
200                 case master_serial:     /* Not used */
201                         printf ("Master Serial\n");
202                         break;
203                 case slave_parallel:
204                         printf ("Slave Parallel\n");
205                         break;
206                 case jtag_mode:         /* Not used */
207                         printf ("JTAG Mode\n");
208                         break;
209                 case slave_selectmap:
210                         printf ("Slave SelectMap Mode\n");
211                         break;
212                 case master_selectmap:
213                         printf ("Master SelectMap Mode\n");
214                         break;
215                 case devcfg:
216                         printf("Device configuration interface (Zynq)\n");
217                         break;
218                         /* Add new interface types here */
219                 default:
220                         printf ("Unsupported interface type, %d\n", desc->iface);
221                 }
222
223                 printf("Device Size:   \t%zd bytes\n"
224                        "Cookie:        \t0x%x (%d)\n",
225                        desc->size, desc->cookie, desc->cookie);
226                 if (desc->name)
227                         printf("Device name:   \t%s\n", desc->name);
228
229                 if (desc->iface_fns) {
230                         printf ("Device Function Table @ 0x%p\n", desc->iface_fns);
231                         desc->operations->info(desc);
232                 } else
233                         printf ("No Device Function Table.\n");
234
235                 ret_val = FPGA_SUCCESS;
236         } else {
237                 printf ("%s: Invalid device descriptor\n", __FUNCTION__);
238         }
239
240         return ret_val;
241 }
242
243 /* ------------------------------------------------------------------------- */
244
245 static int xilinx_validate(xilinx_desc *desc, char *fn)
246 {
247         int ret_val = false;
248
249         if (desc) {
250                 if ((desc->family > min_xilinx_type) &&
251                         (desc->family < max_xilinx_type)) {
252                         if ((desc->iface > min_xilinx_iface_type) &&
253                                 (desc->iface < max_xilinx_iface_type)) {
254                                 if (desc->size) {
255                                         ret_val = true;
256                                 } else
257                                         printf ("%s: NULL part size\n", fn);
258                         } else
259                                 printf ("%s: Invalid Interface type, %d\n",
260                                                 fn, desc->iface);
261                 } else
262                         printf ("%s: Invalid family type, %d\n", fn, desc->family);
263         } else
264                 printf ("%s: NULL descriptor!\n", fn);
265
266         return ret_val;
267 }