spl: fat: Support full fitImage handling

Handle the case where the full fitImage support is enabled. In this
case, the whole fitImage must be loaded up front as some parts of the
fitImage code require memory-mapped access to the entire fitImage.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>

diff --git a/common/spl/spl_fat.c b/common/spl/spl_fat.c
index 87dd5532103a455a7614c6fc305b89096dfb3042..0403016bb433c7bdb2299bdcc215204c6cb6bcec 100644 (file)
--- a/common/spl/spl_fat.c
+++ b/common/spl/spl_fat.c
@@ -70,7 +70,18 @@ int spl_load_image_fat(struct spl_image_info *spl_image,
        if (err <= 0)
                goto end;
 
-       if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
+       if (IS_ENABLED(CONFIG_SPL_LOAD_FIT_FULL) &&
+           image_get_magic(header) == FDT_MAGIC) {
+               err = file_fat_read(filename, (void *)CONFIG_SYS_LOAD_ADDR, 0);
+               if (err <= 0)
+                       goto end;
+               err = spl_parse_image_header(spl_image,
+                               (struct image_header *)CONFIG_SYS_LOAD_ADDR);
+               if (err == -EAGAIN)
+                       return err;
+               if (err == 0)
+                       err = 1;
+       } else if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
            image_get_magic(header) == FDT_MAGIC) {
                struct spl_load_info load;