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fomu-flash: add the ability to specify more pins 

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2018-12-17 22:07:10 +08:00
parent 253e82b5cb
commit a8de1b56dc
1 changed files with 61 additions and 11 deletions
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72
fomu-flash.c
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@ -75,10 +75,47 @@ enum op {
OP_UNKNOWN,
};
static int pinspec_to_pinname(char code) {
switch (code) {
case '0': return SP_D0;
case '1': return SP_D1;
case '2': return SP_D2;
case '3': return SP_D3;
case 'o': return SP_MOSI;
case 'i': return SP_MISO;
case 'w': return SP_WP;
case 'h': return SP_HOLD;
case 'k': return SP_CLK;
case 'c': return SP_CS;
case 'r': return FP_RESET;
case 'd': return FP_DONE;
default: return -1;
}
}
int print_pinspec(FILE *stream) {
fprintf(stream, "Pinspec:\n");
fprintf(stream, " Name Description Default\n");
fprintf(stream, " 0 SPI D0 %d\n", S_D0);
fprintf(stream, " 1 SPI D1 %d\n", S_D1);
fprintf(stream, " 2 SPI D2 %d\n", S_D2);
fprintf(stream, " 3 SPI D3 %d\n", S_D3);
fprintf(stream, " o SPI MOSI %d\n", S_MOSI);
fprintf(stream, " i SPI MISO %d\n", S_MISO);
fprintf(stream, " w SPI WP %d\n", S_WP);
fprintf(stream, " h SPI HOLD %d\n", S_HOLD);
fprintf(stream, " k SPI CLK %d\n", S_CLK);
fprintf(stream, " c SPI CS %d\n", S_CE0);
fprintf(stream, " r FPGA Reset %d\n", F_RESET);
fprintf(stream, " d FPGA Done %d\n", F_DONE);
fprintf(stream, "For example: -g i:23 or -g d:27\n");
return 0;
}
int print_help(FILE *stream, const char *progname) {
fprintf(stream, "Fomu Raspberry Pi Flash Utilities\n");
fprintf(stream, "Usage:\n");
fprintf(stream, " %s [-h] [-r] [-p offset] [-f bin] [-w bin] [-v bin] [-s out] [-2 pin] [-3 pin]\n", progname);
fprintf(stream, " %s [-h] [-r] [-p offset] [-f bin] [-w bin] [-v bin] [-s out] [-g pinspec]\n", progname);
fprintf(stream, "Flags:\n");
fprintf(stream, " -h This help page\n");
fprintf(stream, " -r Reset the FPGA and have it boot from SPI\n");
@ -87,8 +124,10 @@ int print_help(FILE *stream, const char *progname) {
fprintf(stream, " -w bin Write this binary into the SPI flash chip\n");
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, " -2 pin Use this pin number as QSPI IO2\n");
fprintf(stream, " -3 pin Use this pin number as QSPI IO3\n");
fprintf(stream, " -g ps Set the pin assignment with the given pinspec\n");
fprintf(stream, "You can remap various pins with -g. The format is [name]:[number].\n");
fprintf(stream, "\n");
print_pinspec(stream);
return 0;
}
@ -124,15 +163,8 @@ int main(int argc, char **argv) {
return 1;
}
while ((opt = getopt(argc, argv, "hp:rf:w:s:2:3:v:")) != -1) {
while ((opt = getopt(argc, argv, "hp:rf:w:s:2:3:v:g:")) != -1) {
switch (opt) {
case '2':
spiSetPin(spi, SP_D2, strtoul(optarg, NULL, 0));
break;
case '3':
spiSetPin(spi, SP_D3, strtoul(optarg, NULL, 0));
break;
case 'r':
op = OP_FPGA_RESET;
@ -143,6 +175,24 @@ int main(int argc, char **argv) {
peek_offset = strtoul(optarg, NULL, 0);
break;
case 'g':
if ((optarg[0] == '\0') || (optarg[1] != ':')) {
fprintf(stderr, "-g requires a pinspec. Usage:\n");
print_pinspec(stderr);
return 1;
}
spiSetPin(spi, pinspec_to_pinname(optarg[0]), strtoul(optarg+2, NULL, 0));
break;
case '2':
spiSetPin(spi, SP_D2, strtoul(optarg, NULL, 0));
break;
case '3':
spiSetPin(spi, SP_D3, strtoul(optarg, NULL, 0));
break;
case 'f':
op = OP_FPGA_BOOT;
if (op_filename)