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fomu-flash: add spi speed flag

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Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross
2018-11-29 03:51:49 -05:00
parent 3beccf1b03
commit cddbe4c90c
1 changed files with 32 additions and 5 deletions
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37
fomu-flash.c
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@@ -125,7 +125,13 @@ int print_help(FILE *stream, const char *progname) {
fprintf(stream, " -v bin Verify the SPI flash contains this data\n");
fprintf(stream, " -s out Save the SPI flash contents to this file\n");
fprintf(stream, " -g ps Set the pin assignment with the given pinspec\n");
fprintf(stream, " -t type Set the number of bits to use for SPI (1, 2, 4, or Q)\n");
fprintf(stream, "You can remap various pins with -g. The format is [name]:[number].\n");
fprintf(stream, "The width of SPI can be set with 't [width]'. Valid widths are:\n");
fprintf(stream, " 1 - standard 1-bit spi\n");
fprintf(stream, " 2 - standard 2-bit spi\n");
fprintf(stream, " 4 - standard 4-bit spi (with 1-bit commands)\n");
fprintf(stream, " q - 4-bit qspi (with 4-bit commands)\n");
fprintf(stream, "\n");
print_pinspec(stream);
return 0;
@@ -139,6 +145,7 @@ int main(int argc, char **argv) {
struct ff_fpga *fpga;
int peek_offset = 0;
enum op op = OP_UNKNOWN;
enum spi_type spi_type = ST_SINGLE;
spi = spiAlloc();
fpga = fpgaAlloc();
@@ -163,7 +170,7 @@ int main(int argc, char **argv) {
return 1;
}
while ((opt = getopt(argc, argv, "hp:rf:w:s:2:3:v:g:")) != -1) {
while ((opt = getopt(argc, argv, "hp:rf:w:s:2:3:v:g:t:")) != -1) {
switch (opt) {
case 'r':
@@ -175,6 +182,26 @@ int main(int argc, char **argv) {
peek_offset = strtoul(optarg, NULL, 0);
break;
case 't':
switch (*optarg) {
case '1':
spi_type = ST_SINGLE;
break;
case '2':
spi_type = ST_DUAL;
break;
case '4':
spi_type = ST_QUAD;
break;
case 'q':
spi_type = ST_QPI;
break;
default:
fprintf(stderr, "Unrecognized SPI speed '%c'. Valid types are: 1, 2, 4, or q\n", *optarg);
return 1;
}
break;
case 'g':
if ((optarg[0] == '\0') || (optarg[1] != ':')) {
fprintf(stderr, "-g requires a pinspec. Usage:\n");
@@ -237,7 +264,7 @@ int main(int argc, char **argv) {
switch (op) {
case OP_SPI_READ: {
spiSetType(spi, ST_QPI);
spiSetType(spi, spi_type);
fpgaReset(fpga);
fd = open(op_filename, O_WRONLY | O_CREAT | O_TRUNC, 0777);
if (fd == -1) {
@@ -256,7 +283,7 @@ int main(int argc, char **argv) {
}
case OP_SPI_WRITE: {
spiSetType(spi, ST_QPI);
spiSetType(spi, spi_type);
fpgaReset(fpga);
fd = open(op_filename, O_RDONLY);
if (fd == -1) {
@@ -286,7 +313,7 @@ int main(int argc, char **argv) {
case OP_SPI_VERIFY: {
spiSetType(spi, ST_QPI);
spiSetType(spi, spi_type);
fpgaReset(fpga);
fd = open(op_filename, O_RDONLY);
if (fd == -1) {
@@ -325,7 +352,7 @@ offset, file_src[offset], spi_src[offset]);
case OP_SPI_PEEK: {
fpgaReset(fpga);
spiSetType(spi, ST_QPI);
spiSetType(spi, spi_type);
uint8_t page[256];
spiRead(spi, peek_offset, page, sizeof(page));
print_hex_offset(stdout, page, sizeof(page), 0, 0);