diff options
| -rw-r--r-- | iceprog/iceprog.c | 58 |
1 files changed, 53 insertions, 5 deletions
diff --git a/iceprog/iceprog.c b/iceprog/iceprog.c index f38b133..da54d59 100644 --- a/iceprog/iceprog.c +++ b/iceprog/iceprog.c @@ -310,6 +310,28 @@ static void flash_bulk_erase() flash_chip_deselect(); } +static void flash_4kB_sector_erase(int addr) +{ + fprintf(stderr, "erase 4kB sector at 0x%06X..\n", addr); + + uint8_t command[4] = { FC_SE, (uint8_t)(addr >> 16), (uint8_t)(addr >> 8), (uint8_t)addr }; + + flash_chip_select(); + mpsse_send_spi(command, 4); + flash_chip_deselect(); +} + +static void flash_32kB_sector_erase(int addr) +{ + fprintf(stderr, "erase 64kB sector at 0x%06X..\n", addr); + + uint8_t command[4] = { FC_BE32, (uint8_t)(addr >> 16), (uint8_t)(addr >> 8), (uint8_t)addr }; + + flash_chip_select(); + mpsse_send_spi(command, 4); + flash_chip_deselect(); +} + static void flash_64kB_sector_erase(int addr) { fprintf(stderr, "erase 64kB sector at 0x%06X..\n", addr); @@ -449,6 +471,7 @@ static void help(const char *progname) fprintf(stderr, " or 'M' for size in megabytes)\n"); fprintf(stderr, " -s slow SPI (50 kHz instead of 6 MHz)\n"); fprintf(stderr, " -v verbose output\n"); + fprintf(stderr, " -i [4,32,64] select erase block size [default: 64k]\n"); fprintf(stderr, "\n"); fprintf(stderr, "Mode of operation:\n"); fprintf(stderr, " [default] write file contents to flash, then verify\n"); @@ -509,6 +532,7 @@ int main(int argc, char **argv) my_name = argv[0] + i + 1; int read_size = 256 * 1024; + int erase_block_size = 64; int erase_size = 0; int rw_offset = 0; @@ -539,11 +563,23 @@ int main(int argc, char **argv) /* Decode command line parameters */ int opt; char *endptr; - while ((opt = getopt_long(argc, argv, "d:I:rR:e:o:cbnStvspX", long_options, NULL)) != -1) { + while ((opt = getopt_long(argc, argv, "d:i:I:rR:e:o:cbnStvspX", long_options, NULL)) != -1) { switch (opt) { case 'd': /* device string */ devstr = optarg; break; + case 'i': /* block erase size */ + if (!strcmp(optarg, "4")) + erase_block_size = 4; + else if (!strcmp(optarg, "32")) + erase_block_size = 32; + else if (!strcmp(optarg, "64")) + erase_block_size = 64; + else { + fprintf(stderr, "%s: `%s' is not a valid erase block size (must be `4', `32' or `64')\n", my_name, optarg); + return EXIT_FAILURE; + } + break; case 'I': /* FTDI Chip interface select */ if (!strcmp(optarg, "A")) ifnum = 0; @@ -888,12 +924,24 @@ int main(int argc, char **argv) { fprintf(stderr, "file size: %ld\n", file_size); - int begin_addr = rw_offset & ~0xffff; - int end_addr = (rw_offset + file_size + 0xffff) & ~0xffff; + int block_size = erase_block_size << 10; + int block_mask = block_size - 1; + int begin_addr = rw_offset & ~block_mask; + int end_addr = (rw_offset + file_size + block_mask) & ~block_mask; - for (int addr = begin_addr; addr < end_addr; addr += 0x10000) { + for (int addr = begin_addr; addr < end_addr; addr += block_size) { flash_write_enable(); - flash_64kB_sector_erase(addr); + switch(erase_block_size) { + case 4: + flash_4kB_sector_erase(addr); + break; + case 32: + flash_32kB_sector_erase(addr); + break; + case 64: + flash_64kB_sector_erase(addr); + break; + } if (verbose) { fprintf(stderr, "Status after block erase:\n"); flash_read_status(); |