Allow loading a FIT image via semihosting in SPL.
Signed-off-by: Heinrich Schuchardt <heinrich.schucha...@canonical.com>
---
common/spl/spl_semihosting.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/common/spl/spl_semihosting.c b/common/spl/spl_semihosting.c
index 5b5e842a11..f7dd289286 100644
--- a/common/spl/spl_semihosting.c
+++ b/common/spl/spl_semihosting.c
@@ -21,6 +21,23 @@ static int smh_read_full(long fd, void *memp, size_t len)
return 0;
}
+static ulong smh_fit_read(struct spl_load_info *load, ulong file_offset,
+ ulong size, void *buf)
+{
+ long fd;
+ ulong ret;
+
+ fd = smh_open(load->filename, MODE_READ | MODE_BINARY);
+ if (fd < 0) {
+ log_debug("could not open %s: %ld\n", load->filename, fd);
+ return 0;
+ }
+ ret = smh_read(fd, buf, size);
+ smh_close(fd);
+
+ return ret;
+}
+
static int spl_smh_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
@@ -49,6 +66,20 @@ static int spl_smh_load_image(struct spl_image_info
*spl_image,
goto out;
}
+ if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
+ image_get_magic(header) == FDT_MAGIC) {
+ struct spl_load_info load;
+
+ debug("Found FIT\n");
+ load.read = smh_fit_read;
+ load.bl_len = 1;
+ load.filename = filename;
+ load.priv = NULL;
+ smh_close(fd);
+
+ return spl_load_simple_fit(spl_image, &load, 0, header);
+ }
+
ret = spl_parse_image_header(spl_image, bootdev, header);
if (ret) {
log_debug("failed to parse image header: %d\n", ret);
--
2.40.1
