colibri_imx6: fix video stdout in default environment

[oweals/u-boot.git] / tools / fit_common.c

diff --git a/tools/fit_common.c b/tools/fit_common.c
index 9506390214ce028bbe0045d88161538ec652da2d..cdf987d3c1389004ccf98135cd1d88aa54e174ff 100644 (file)
--- a/tools/fit_common.c
+++ b/tools/fit_common.c
@@ -41,13 +41,14 @@ int fit_check_image_types(uint8_t type)
 }
 
 int mmap_fdt(const char *cmdname, const char *fname, size_t size_inc,
-            void **blobp, struct stat *sbuf, bool delete_on_error)
+            void **blobp, struct stat *sbuf, bool delete_on_error,
+            bool read_only)
 {
        void *ptr;
        int fd;
 
        /* Load FIT blob into memory (we need to write hashes/signatures) */
-       fd = open(fname, O_RDWR | O_BINARY);
+       fd = open(fname, (read_only ? O_RDONLY : O_RDWR) | O_BINARY);
 
        if (fd < 0) {
                fprintf(stderr, "%s: Can't open %s: %s\n",
@@ -71,7 +72,9 @@ int mmap_fdt(const char *cmdname, const char *fname, size_t size_inc,
        }
 
        errno = 0;
-       ptr = mmap(0, sbuf->st_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+       ptr = mmap(0, sbuf->st_size,
+                  (read_only ? PROT_READ : PROT_READ | PROT_WRITE), MAP_SHARED,
+                  fd, 0);
        if ((ptr == MAP_FAILED) || (errno != 0)) {
                fprintf(stderr, "%s: Can't read %s: %s\n",
                        cmdname, fname, strerror(errno));