[PATCH 2/6] boot: android: Add image_android_get_version()

[Mattijs Korpershoek <mkorpershoek@baylibre.com>]

When reading a boot image header, we may need to retrieve the header
version.

Add a helper function for it.

Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
---
 boot/image-android.c | 7 ++++++-
 include/image.h      | 7 +++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/boot/image-android.c b/boot/image-android.c
index ddd8ffd5e540..4f8fb51585eb 100644
--- a/boot/image-android.c
+++ b/boot/image-android.c
@@ -185,7 +185,7 @@ bool android_image_get_data(const void *boot_hdr, const void *vendor_boot_hdr,
 		return false;
 	}
 
-	if (((struct andr_boot_img_hdr_v0 *)boot_hdr)->header_version > 2) {
+	if (android_image_get_version(boot_hdr) > 2) {
 		if (!vendor_boot_hdr) {
 			printf("For boot header v3+ vendor boot image has to be provided\n");
 			return false;
@@ -203,6 +203,11 @@ bool android_image_get_data(const void *boot_hdr, const void *vendor_boot_hdr,
 	return true;
 }
 
+u32 android_image_get_version(const void *hdr)
+{
+	return ((struct andr_boot_img_hdr_v0 *)hdr)->header_version;
+}
+
 static ulong android_image_get_kernel_addr(struct andr_image_data *img_data)
 {
 	/*
diff --git a/include/image.h b/include/image.h
index acffd17e0dfd..18e5ced5ab42 100644
--- a/include/image.h
+++ b/include/image.h
@@ -1963,6 +1963,13 @@ bool is_android_boot_image_header(const void *hdr);
  */
 bool is_android_vendor_boot_image_header(const void *vendor_boot_img);
 
+/**
+ * android_image_get_version() - Retrieve the boot.img version
+ *
+ * Return: Android boot image header version.
+ */
+u32 android_image_get_version(const void *hdr);
+
 /**
  * get_abootimg_addr() - Get Android boot image address
  *

-- 
2.45.0