FreeCalypso > hg > fc-magnetite
view helpers/mk-flash-script.c @ 680:ee3ac8c617cb
armio.c: set GPIO2 output high initially
On TI-canonical platforms GPIO2 is DCD modem control output. In TI's
original code the AI_InitIOConfig() function called from Init_Target()
would configure GPIO2 as an output and set the initial output value to
low, but then the init code in uartfax.c called from Init_Serial_Flows()
would immediately change it to high, corresponding to DCD not asserted.
The result is a momentary asserted-state glitch on the DCD output.
The present change eliminates this glitch, setting DCD output to
not-asserted initially like it should be.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 25 Jun 2020 03:17:43 +0000 |
parents | d4d07c751e56 |
children |
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/* * This helper program generates the fc-loadtool command script * for flashing the just-built firmware image. */ #include <sys/types.h> #include <sys/stat.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> main(argc, argv) char **argv; { struct stat st; u_long image_size, sector_size; if (argc != 4) { fprintf(stderr, "usage: %s fwimage.bin flash-base flash-sector-size\n", argv[0]); exit(1); } if (stat(argv[1], &st) < 0) { perror(argv[1]); exit(1); } if (!S_ISREG(st.st_mode)) { fprintf(stderr, "error: %s is not a regular file\n", argv[1]); exit(1); } image_size = st.st_size; sector_size = strtoul(argv[3], 0, 16); image_size += sector_size - 1; image_size &= ~(sector_size - 1); printf("flash erase %s 0x%lx\n", argv[2], image_size); printf("flash program-bin %s %s\n", argv[2], argv[1]); exit(0); }