Merge patch series "bootdev: few fixes for automatic boot"

[email protected] <[email protected]> says:

This series addresses few findings in bootdev code.

Patch 1 fix for automatic boots in case higher-priority bootdevs fail
        to be hunted.

Patch 2 adds unit test for patch 1.

Link: https://lore.kernel.org/r/[email protected]

1 files changed, 73 insertions, 0 deletions

diff --git a/drivers/block/sandbox-bootdev.c b/drivers/block/sandbox-bootdev.c
new file mode 100644
index 00000000000..15af0c17d1f
--- /dev/null
+++ b/drivers/block/sandbox-bootdev.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#define LOG_CATEGORY	UCLASS_HOST
+
+#include <bootdev.h>
+#include <dm.h>
+#include <log.h>
+#include <sandbox_host.h>
+
+static int sandbox_bootdev_bind(struct udevice *dev)
+{
+	struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
+
+	ucp->prio = BOOTDEVP_4_SCAN_FAST;
+
+	return 0;
+}
+
+/**
+ * sandbox_bootdev_hunt() - Hunt host bootdev.
+ *
+ * Note, this hunter exists for bootdev testing to simulate a failure
+ * mode.  Do not use as an example of a real hunter.
+ *
+ * @info: Hunter details.
+ * @show: Enable extra printouts.
+ *
+ * Returns: 0 if OK, -ve on error (expected by the test)
+ */
+static int sandbox_bootdev_hunt(struct bootdev_hunter *info, bool show)
+{
+	struct udevice *dev;
+	struct uclass *uc;
+	int ret;
+
+	uclass_id_foreach_dev(UCLASS_HOST, dev, uc) {
+		struct host_sb_plat *plat = dev_get_plat(dev);
+
+		log_debug("hunting %s\n", plat->label);
+
+		if (plat->flags & HOST_FLAG_BROKEN) {
+			ret = -ETIME;
+			log_debug("cannot hunt sandbox device '%s': %d\n",
+				  plat->label, ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static const struct bootdev_ops sandbox_bootdev_ops = {
+};
+
+static const struct udevice_id sandbox_bootdev_ids[] = {
+	{ .compatible = "u-boot,bootdev-sandbox" },
+	{ }
+};
+
+U_BOOT_DRIVER(sandbox_bootdev) = {
+	.name		= "sandbox_bootdev",
+	.id		= UCLASS_BOOTDEV,
+	.ops		= &sandbox_bootdev_ops,
+	.bind		= sandbox_bootdev_bind,
+	.of_match	= sandbox_bootdev_ids,
+};
+
+BOOTDEV_HUNTER(sandbox_bootdev_hunter) = {
+	.prio		= BOOTDEVP_4_SCAN_FAST,
+	.uclass		= UCLASS_HOST,
+	.hunt		= sandbox_bootdev_hunt,
+	.drv		= DM_DRIVER_REF(sandbox_bootdev),
+};