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disable auto-crc by default

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This commit is contained in:
Wolfgang Spraul 2012-09-20 08:08:13 +02:00
parent 3116d6af9d
commit 99a855dddd
4 changed files with 30 additions and 15 deletions
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10
bit2fp.c
View File

@ -12,7 +12,7 @@
int main(int argc, char** argv)
{
struct fpga_model model;
int bit_header, bit_regs, fp_header, pull_model, file_arg, flags;
int bit_header, bit_regs, bit_crc, fp_header, pull_model, file_arg, flags;
int print_swbits, rc = -1;
struct fpga_config config;
@ -21,13 +21,14 @@ int main(int argc, char** argv)
fprintf(stderr,
"\n"
"%s - bitstream to floorplan\n"
"Usage: %s [--bit-header] [--bit-regs] [--no-model] [--no-fp-header]\n"
" %*s [--printf-swbits] <bitstream_file>\n"
"Usage: %s [--bit-header] [--bit-regs] [--bit-crc] [--no-model]\n"
" %*s [--no-fp-header] [--printf-swbits] <bitstream_file>\n"
"\n", argv[0], argv[0], (int) strlen(argv[0]), "");
goto fail;
}
bit_header = 0;
bit_regs = 0;
bit_crc = 0;
pull_model = 1;
fp_header = 1;
file_arg = 1;
@ -38,6 +39,8 @@ int main(int argc, char** argv)
bit_header = 1;
else if (!strcmp(argv[file_arg], "--bit-regs"))
bit_regs = 1;
else if (!strcmp(argv[file_arg], "--bit-crc"))
bit_crc = 1;
else if (!strcmp(argv[file_arg], "--no-model"))
pull_model = 0;
else if (!strcmp(argv[file_arg], "--no-fp-header"))
@ -83,6 +86,7 @@ int main(int argc, char** argv)
flags = DUMP_BITS;
if (bit_header) flags |= DUMP_HEADER_STR;
if (bit_regs) flags |= DUMP_REGS;
if (bit_crc) flags |= DUMP_CRC;
if ((rc = dump_config(&config, flags))) FAIL(rc);
return EXIT_SUCCESS;
fail:

6
libs/bit.h
View File

@ -17,6 +17,7 @@ enum fpga_config_reg {
#define REG_NOOP -1 // pseudo register for noops
#define COR1_DEF 0x3D00
#define COR1_CRC_BYPASS 0x0010
#define COR2_DEF 0x09EE
#define MASK_DEF 0xCF
@ -66,6 +67,9 @@ struct fpga_bits
int len;
};
// Use the default value together with COR1 CRC_BYPASS
#define DEFAULT_AUTO_CRC 0x9876DEFC
struct fpga_config
{
char header_str[4][MAX_HEADER_STR_LEN];
@ -78,6 +82,7 @@ struct fpga_config
int FLR_reg;
struct fpga_bits bits;
uint32_t auto_crc;
};
int read_bitfile(struct fpga_config* cfg, FILE* f);
@ -85,6 +90,7 @@ int read_bitfile(struct fpga_config* cfg, FILE* f);
#define DUMP_HEADER_STR 0x0001
#define DUMP_REGS 0x0002
#define DUMP_BITS 0x0004
#define DUMP_CRC 0x0008
int dump_config(struct fpga_config* cfg, int flags);
void free_config(struct fpga_config* cfg);

4
libs/bit_frames.c
View File

@ -351,9 +351,9 @@ static int bitpos_is_set(struct extract_state* es, int y, int x,
if (swpos->minor == 20) {
two_bits_val = ((get_bit(es->bits, row_num, es->model->x_major[x],
20, start_in_frame + swpos->two_bits_o) != 0) << 0)
20, start_in_frame + swpos->two_bits_o) != 0) << 1)
| ((get_bit(es->bits, row_num, es->model->x_major[x],
20, start_in_frame + swpos->two_bits_o+1) != 0) << 1);
20, start_in_frame + swpos->two_bits_o+1) != 0) << 0);
if (two_bits_val != swpos->two_bits_val)
return 0;

23
libs/bit_regs.c
View File

@ -86,7 +86,7 @@ static void dump_header(struct fpga_config* cfg)
}
}
static int dump_regs(struct fpga_config* cfg, int start, int end)
static int dump_regs(struct fpga_config* cfg, int start, int end, int dump_crc)
{
uint16_t u16;
int i, rc;
@ -156,7 +156,9 @@ static int dump_regs(struct fpga_config* cfg, int start, int end)
continue;
}
if (cfg->reg[i].reg == CRC) {
// Don't print CRC cfg->reg[i].int_v for cleaner diff.
if (dump_crc)
printf("T1 CRC 0x%X\n", cfg->reg[i].int_v);
else
printf("T1 CRC\n");
continue;
}
@ -905,7 +907,7 @@ int dump_config(struct fpga_config* cfg, int flags)
if (flags & DUMP_HEADER_STR)
dump_header(cfg);
if (flags & DUMP_REGS) {
rc = dump_regs(cfg, /*start*/ 0, cfg->num_regs_before_bits);
rc = dump_regs(cfg, /*start*/ 0, cfg->num_regs_before_bits, flags & DUMP_CRC);
if (rc) FAIL(rc);
}
if (flags & DUMP_BITS) {
@ -915,9 +917,11 @@ int dump_config(struct fpga_config* cfg, int flags)
if (rc) FAIL(rc);
printf_iob(cfg->bits.d, cfg->bits.len,
BRAM_DATA_START + BRAM_DATA_LEN, 896*2/8);
if (flags & DUMP_CRC)
printf("auto-crc 0x%X\n", cfg->auto_crc);
}
if (flags & DUMP_REGS) {
rc = dump_regs(cfg, cfg->num_regs_before_bits, cfg->num_regs);
rc = dump_regs(cfg, cfg->num_regs_before_bits, cfg->num_regs, flags & DUMP_CRC);
if (rc) FAIL(rc);
}
return 0;
@ -1021,6 +1025,7 @@ static int read_bits(struct fpga_config* cfg, uint8_t* d, int len, int inpos, in
cfg->bits.len = (4*505 + 4*144) * 130 + 896*2;
cfg->bits.d = calloc(cfg->bits.len, 1 /* elsize */);
if (!cfg->bits.d) FAIL(ENOMEM);
cfg->auto_crc = 0;
FAR_block = -1;
FAR_row = -1;
@ -1185,8 +1190,7 @@ static int read_bits(struct fpga_config* cfg, uint8_t* d, int len, int inpos, in
if (u16) FAIL(EINVAL);
}
src_off += 2*u32;
// two CRC words
u32 = __be32_to_cpu(*(uint32_t*)&d[src_off]);
cfg->auto_crc = __be32_to_cpu(*(uint32_t*)&d[src_off]);
src_off += 4;
}
rc = EINVAL;
@ -1455,7 +1459,7 @@ static struct fpga_config_reg_rw s_defregs_before_bits[] =
{{ CMD, .int_v = CMD_RCRC },
{ REG_NOOP },
{ FLR, .int_v = 896 },
{ COR1, .int_v = COR1_DEF },
{ COR1, .int_v = COR1_DEF | COR1_CRC_BYPASS },
{ COR2, .int_v = COR2_DEF },
{ IDCODE, .int_v = XC6SLX9 },
{ MASK, .int_v = MASK_DEF },
@ -1498,7 +1502,7 @@ static struct fpga_config_reg_rw s_defregs_after_bits[] =
{ CMD, .int_v = CMD_START },
{ MASK, .int_v = MASK_DEF | MASK_SECURITY },
{ CTL, .int_v = CTL_DEF },
{ CRC },
{ CRC, .int_v = DEFAULT_AUTO_CRC },
{ CMD, .int_v = CMD_DESYNC },
{ REG_NOOP }, { REG_NOOP }, { REG_NOOP }, { REG_NOOP },
{ REG_NOOP }, { REG_NOOP }, { REG_NOOP }, { REG_NOOP },
@ -1665,7 +1669,8 @@ static int write_bits(FILE* f, struct fpga_model* model)
nwritten = fwrite(&u16, /*size*/ 1, sizeof(u16), f);
if (nwritten != sizeof(u16)) FAIL(errno);
u32 = 0; // todo: 32-bit auto-crc value
// todo: support real auto-crc calculation
u32 = DEFAULT_AUTO_CRC;
u32 = __cpu_to_be32(u32);
nwritten = fwrite(&u32, /*size*/ 1, sizeof(u32), f);
if (nwritten != sizeof(u32)) FAIL(errno);