external/gard: Print an error if run on an FSP system
#define CLEARED_RECORD_ID 0xFFFFFFFF
-#define FDT_ACTIVE_FLASH_PATH "/proc/device-tree/chosen/ibm,system-flash"
+#define FDT_PATH "/proc/device-tree"
+#define FDT_FSP_NODE FDT_PATH"/fsps"
+#define FDT_ACTIVE_FLASH_PATH FDT_PATH"/chosen/ibm,system-flash"
#define SYSFS_MTD_PATH "/sys/class/mtd/"
#define FLASH_GARD_PART "GUARD"
@@ -583,6 +585,11 @@ static void usage(const char *progname)
}
}
+static bool is_fsp(void)
+{
+ return access(FDT_FSP_NODE, F_OK) == 0;
+}
+
static struct option global_options[] = {
{ "file", required_argument, 0, 'f' },
{ "part", no_argument, 0, 'p' },
@@ -606,6 +613,12 @@ int main(int argc, char **argv)
ctx = &_ctx;
memset(ctx, 0, sizeof(*ctx));
+ if (is_fsp()) {
+ fprintf(stderr, "This is the OpenPower gard tool which does "
+ "not support FSP systems\n");
+ return EXIT_FAILURE;
+ }
+
/* process global options */
for (;;) {
int c;
