Some bootflows might be able to only boot from MMC devices.
Add a helper function these bootflows can use.
Signed-off-by: Mattijs Korpershoek <mkorpersh...@baylibre.com>
---
boot/bootflow.c | 12 ++++++++++++
include/bootflow.h | 9 +++++++++
2 files changed, 21 insertions(+)
diff --git a/boot/bootflow.c b/boot/bootflow.c
index 9aa3179c3881..59d77d2385f4 100644
--- a/boot/bootflow.c
+++ b/boot/bootflow.c
@@ -575,6 +575,18 @@ int bootflow_iter_check_blk(const struct bootflow_iter
*iter)
return -ENOTSUPP;
}
+int bootflow_iter_check_mmc(const struct bootflow_iter *iter)
+{
+ const struct udevice *media = dev_get_parent(iter->dev);
+ enum uclass_id id = device_get_uclass_id(media);
+
+ log_debug("uclass %d: %s\n", id, uclass_get_name(id));
+ if (id == UCLASS_MMC)
+ return 0;
+
+ return -ENOTSUPP;
+}
+
int bootflow_iter_check_sf(const struct bootflow_iter *iter)
{
const struct udevice *media = dev_get_parent(iter->dev);
diff --git a/include/bootflow.h b/include/bootflow.h
index 080ee8501225..6058ddd89b16 100644
--- a/include/bootflow.h
+++ b/include/bootflow.h
@@ -407,6 +407,15 @@ void bootflow_remove(struct bootflow *bflow);
*/
int bootflow_iter_check_blk(const struct bootflow_iter *iter);
+/**
+ * bootflow_iter_check_mmc() - Check that a bootflow uses a MMC device
+ *
+ * This checks the bootdev in the bootflow to make sure it uses a mmc device
+ *
+ * Return: 0 if OK, -ENOTSUPP if some other device is used (e.g. ethernet)
+ */
+int bootflow_iter_check_mmc(const struct bootflow_iter *iter);
+
/**
* bootflow_iter_check_sf() - Check that a bootflow uses SPI FLASH
*
--
2.45.0
