diff options
| author | Simon Glass <sjg@chromium.org> | 2017-06-12 06:21:58 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2017-07-11 10:08:20 -0600 |
| commit | f93472a0221b6e1eb7acce8aee6c2eb335904f58 (patch) | |
| tree | c7921174a82c26bf0f749bbf4cf489fa3a0c5535 | |
| parent | d09608534cb4864d1fbde6459d3501129c344a0c (diff) | |
dm: serial: Add livetree support
Add support for a live device tree to the core serial uclass.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
| -rw-r--r-- | drivers/serial/serial-uclass.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c index 7e4290684c..f360534683 100644 --- a/drivers/serial/serial-uclass.c +++ b/drivers/serial/serial-uclass.c @@ -14,6 +14,7 @@ #include <watchdog.h> #include <dm/lists.h> #include <dm/device-internal.h> +#include <dm/of_access.h> DECLARE_GLOBAL_DATA_PTR; @@ -81,9 +82,20 @@ static void serial_find_console_or_panic(void) return; } } else if (CONFIG_IS_ENABLED(OF_CONTROL) && blob) { - if (!serial_check_stdout(blob, &dev)) { - gd->cur_serial_dev = dev; - return; + /* Live tree has support for stdout */ + if (of_live_active()) { + struct device_node *np = of_get_stdout(); + + if (np && !uclass_get_device_by_ofnode(UCLASS_SERIAL, + np_to_ofnode(np), &dev)) { + gd->cur_serial_dev = dev; + return; + } + } else { + if (!serial_check_stdout(blob, &dev)) { + gd->cur_serial_dev = dev; + return; + } } } if (!SPL_BUILD || !CONFIG_IS_ENABLED(OF_CONTROL) || !blob) { |