bootstd: Add a little more logging of bootflows

Add some logging to aid debugging of problems with bootflows.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/boot/bootdev-uclass.c b/boot/bootdev-uclass.c
index 522ecf3..99ee08e 100644 (file)
--- a/boot/bootdev-uclass.c
+++ b/boot/bootdev-uclass.c
@@ -546,6 +546,7 @@ int bootdev_get_bootflow(struct udevice *dev, struct bootflow_iter *iter,
 {
        const struct bootdev_ops *ops = bootdev_get_ops(dev);
 
+       log_debug("->get_bootflow %s=%p\n", dev->name, ops->get_bootflow);
        bootflow_init(bflow, dev, iter->method);
        if (!ops->get_bootflow)
                return default_get_bootflow(dev, iter, bflow);

diff --git a/boot/bootflow.c b/boot/bootflow.c
index 03a180b..dc3f1f0 100644 (file)
--- a/boot/bootflow.c
+++ b/boot/bootflow.c
@@ -367,6 +367,7 @@ int bootflow_scan_first(struct udevice *dev, const char *label,
 
        ret = bootflow_check(iter, bflow);
        if (ret) {
+               log_debug("check - ret=%d\n", ret);
                if (ret != BF_NO_MORE_PARTS && ret != -ENOSYS) {
                        if (iter->flags & BOOTFLOWF_ALL)
                                return log_msg_ret("all", ret);
@@ -386,11 +387,13 @@ int bootflow_scan_next(struct bootflow_iter *iter, struct bootflow *bflow)
 
        do {
                ret = iter_incr(iter);
+               log_debug("iter_incr: ret=%d\n", ret);
                if (ret == BF_NO_MORE_DEVICES)
                        return log_msg_ret("done", ret);
 
                if (!ret) {
                        ret = bootflow_check(iter, bflow);
+                       log_debug("check - ret=%d\n", ret);
                        if (!ret)
                                return 0;
                        iter->err = ret;
@@ -399,6 +402,7 @@ int bootflow_scan_next(struct bootflow_iter *iter, struct bootflow *bflow)
                                        return log_msg_ret("all", ret);
                        }
                } else {
+                       log_debug("incr failed, err=%d\n", ret);
                        iter->err = ret;
                }