diff options
| -rw-r--r-- | util/ifdtool/ifdtool.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c index 191b3216de9c..07cc26823ba0 100644 --- a/util/ifdtool/ifdtool.c +++ b/util/ifdtool/ifdtool.c @@ -1577,10 +1577,28 @@ static void disable_gpr0(const char *filename, char *image, int size) fprintf(stderr, "Disabling GPR0 not supported on this platform\n"); exit(EXIT_FAILURE); } - + /* If bit 31 is set then GPR0 protection is enable */ + bool gpr0_status = fpsba->pchstrp[gpr0_offset] & 0x80000000; + if (!gpr0_status) { + printf("GPR0 protection is already disabled\n"); + return; + } + + printf("Value at GPRD offset (%d) is 0x%08x\n", gpr0_offset, fpsba->pchstrp[gpr0_offset]); + printf("--------- GPR0 Protected Range --------------\n"); + /* + * Start Address: bit 0-15 of the GPRD represents the protected region start address, + * where bit 0-11 of the start address are assumed to be zero. + */ + printf("Start address = 0x%08x\n", (fpsba->pchstrp[gpr0_offset] & 0xffff) << 12); + /* + * End Address: bit 16-30 of the GPRD represents the protected region end address, + * where bit 0-11 of the end address are assumed to be 0xfff. + */ + printf("End address = 0x%08x\n", + ((fpsba->pchstrp[gpr0_offset] >> 16) & 0x7fff) << 12 | 0xfff); /* 0 means GPR0 protection is disabled */ fpsba->pchstrp[gpr0_offset] = 0; - write_image(filename, image, size); } |